/* ================================================================
   Shona Language for Kids — Clean Responsive Design
   ================================================================ */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Prevent horizontal scroll — keep off html to avoid mobile viewport bugs */
html {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}
body {
  width: 100%;
  overflow-x: hidden;
  touch-action: manipulation;
  position: relative;
}
body, html {
  margin: 0;
  padding: 0;
}

/* Responsive media defaults */
img, video, iframe, svg, canvas {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Word wrapping */
body {
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

/* Design Tokens */
:root {
  --navbar-height: 52px;
  --font: 'Fredoka', 'Quicksand', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Fredoka', system-ui, sans-serif;
  --fw-l: 300; --fw-n: 400; --fw-m: 500; --fw-sb: 600; --fw-b: 700;
  --sp-1: 0.25rem; --sp-2: 0.5rem; --sp-3: 0.75rem; --sp-4: 1rem;
  --sp-5: 1.25rem; --sp-6: 1.5rem; --sp-8: 2rem; --sp-10: 2.5rem;
  --sp-12: 3rem; --sp-16: 4rem; --sp-20: 5rem; --sp-24: 6rem;
  --r-sm: 8px; --r-md: 12px; --r-lg: 16px; --r-xl: 24px; --r-full: 9999px;
  --sh-sm: 0 1px 3px rgba(0,0,0,0.08);
  --sh-md: 0 4px 12px rgba(0,0,0,0.1);
  --sh-lg: 0 8px 24px rgba(0,0,0,0.12);
  --sh-xl: 0 16px 48px rgba(0,0,0,0.15);
  --tr-f: 150ms ease; --tr-b: 300ms ease; --tr-s: 500ms ease;
  --z-st: 100; --z-fi: 200; --z-to: 500;
  --tx-xs: 0.75rem; --tx-sm: 0.875rem; --tx-ba: 1rem;
  --tx-lg: 1.125rem; --tx-xl: 1.35rem; --tx-2x: 1.75rem;
  --tx-3x: 2.25rem; --tx-4x: 3rem;
  --lh-t: 1.1; --lh-s: 1.3; --lh-n: 1.6;
  --p-50: #FFFDE7; --p-100: #FFF9C4; --p-200: #FFF59D; --p-300: #FFE566;
  --p-400: #FFD700; --p-500: #FFD200; --p-600: #E6BD00; --p-700: #C8A800;
  --s-50: #ffebee; --s-100: #ffcdd2; --s-200: #ef9a9a; --s-300: #e57373;
  --s-400: #ef5350; --s-500: #f44336; --s-600: #e53935; --s-700: #d32f2f;
  --a-50: #e8f5e9; --a-100: #c8e6c9; --a-200: #a5d6a7; --a-300: #81c784;
  --a-400: #66bb6a; --a-500: #4caf50; --a-600: #43a047; --a-700: #388e3c;
  --n-50: #fafafa; --n-100: #f5f5f5; --n-200: #eeeeee; --n-300: #e0e0e0;
  --n-400: #bdbdbd; --n-500: #9e9e9e; --n-600: #757575; --n-700: #616161;
  --n-800: #424242; --n-900: #212121;
  /* Zimbabwe Heritage — Deep Green, Vibrant Gold, Crimson Red */
  --c-pr: #006400; --c-ph: #005200; --c-pa: #004000;
  --c-se: #D40000; --c-sh: #B80000; --c-sa: #9C0000;
  --c-ac: #FFD200; --c-ah: #E6BD00; --c-aa: #C8A800;
  --c-bg: #FAF7F2; --c-su: #ffffff; --c-sev: #F5FAF5; --c-mu: #EDF7EE;
  --c-bo: rgba(33,33,33,0.08); --c-bs: rgba(33,33,33,0.15);
  --c-tx: var(--n-900); --c-t2: var(--n-700); --c-tm: var(--n-500); --c-ti: #ffffff;
  --c-ok: #006400; --c-er: #D40000; --c-wa: #C8A800;
}

@media (prefers-color-scheme: dark) {
  :root {
    --c-pr: #4CAF50; --c-ph: #66BB6A; --c-pa: #81C784;
    --c-se: #EF5350; --c-sh: #EF9A9A; --c-sa: #FFCDD2;
    --c-ac: #FFD700; --c-ah: #FFE566; --c-aa: #FFF9C4;
    --c-bg: #1A1814; --c-su: #2A2720; --c-sev: #1E2A1E; --c-mu: #1A2E1A;
    --c-bo: rgba(255,255,255,0.06); --c-bs: rgba(255,255,255,0.12);
    --c-tx: #f5f5f5; --c-t2: #bdbdbd; --c-tm: #757575; --c-ti: #212121;
  }
}

html {
  font-family: var(--font);
  color: var(--c-tx);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  color-scheme: light dark;
}

body {
  min-height: 100vh;
  background: var(--c-bg);
  line-height: var(--lh-n);
  font-size: var(--tx-ba);
}

::selection { background: var(--p-200); color: #006400; }
@media (prefers-color-scheme: dark) {
  ::selection { background: var(--p-700); color: var(--n-900); }
}

.site-shell { 
  display: flex; 
  flex-direction: column; 
  min-height: 100vh; 
  padding-top: var(--navbar-height);
  width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
}
.site-main { flex: 1; }
.container {
  width: min(100% - clamp(1rem, 5%, 3rem), 1200px);
  margin: 0 auto;
  box-sizing: border-box;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; top: var(--sp-2); left: var(--sp-2); z-index: var(--z-to);
  padding: var(--sp-3) var(--sp-4); background: var(--c-tx); color: var(--c-ti);
  text-decoration: none; font-weight: var(--fw-b); border-radius: var(--r-md);
  transform: translateY(-140%); transition: transform var(--tr-f);
}
.skip-link:focus { transform: translateY(0); }

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid var(--c-pr); outline-offset: 3px; border-radius: var(--r-sm);
}

/* Scroll to Top */
.scroll-top {
  position: fixed; bottom: calc(var(--sp-6) + 60px); right: var(--sp-6); z-index: var(--z-fi);
  width: 44px; height: 44px; border-radius: var(--r-full);
  border: 2px solid var(--c-bs); background: var(--c-su); color: var(--c-tx);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; box-shadow: var(--sh-md);
  transition: transform var(--tr-b), box-shadow var(--tr-b), opacity var(--tr-b), background var(--tr-b);
  opacity: 0; pointer-events: none;
}
.scroll-top.is-visible { opacity: 1; pointer-events: auto; }
.scroll-top:hover, .scroll-top:focus-visible { transform: translateY(-3px) scale(1.08); box-shadow: var(--sh-lg); background: var(--c-mu); }
.scroll-top:active { transform: scale(0.95); }
@media (max-width: 768px) {
  .scroll-top { bottom: calc(70px + var(--sp-3) + 52px); right: var(--sp-4); width: 40px; height: 40px; }
}

/* Scroll Progress */
.scroll-progress {
  position: fixed; top: 0; left: 0; width: 0%; height: 3px;
  background: linear-gradient(90deg, var(--c-pr), var(--c-se)); z-index: var(--z-fi);
}

/* Buttons */
.nav-btn, .play-btn, .sec-link {
  padding: var(--sp-3) var(--sp-6); font-size: var(--tx-ba); border: none;
  border-radius: var(--r-full); cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  min-height: 52px; font-weight: var(--fw-sb); font-family: var(--font);
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--sp-2); text-decoration: none; position: relative; overflow: hidden;
  box-shadow: var(--sh-md);
}
.nav-btn::before, .play-btn::before, .sec-link::before {
  content: ""; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}
.nav-btn:hover::before, .play-btn:hover::before, .sec-link:hover::before { left: 100%; }

.nav-btn {
  background: var(--c-su);
  color: var(--c-t2); border: 2px solid var(--c-bo);
}
.nav-btn:hover, .nav-btn:focus-visible {
  background: var(--n-100);
  color: var(--c-tx);
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--sh-lg);
}
.play-btn {
  background: linear-gradient(135deg, var(--c-pr) 0%, var(--c-ph) 100%);
  color: var(--c-ti); border: 2px solid rgba(255,255,255,0.2);
}
.play-btn:hover, .play-btn:focus-visible {
  background: linear-gradient(135deg, var(--c-ph) 0%, var(--c-pa) 100%);
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--sh-lg), 0 8px 20px rgba(0,100,0,0.25);
}
.sec-link {
  background: linear-gradient(135deg, var(--c-pr) 0%, var(--c-ph) 100%);
  color: var(--c-ti); border: 2px solid rgba(255,255,255,0.2);
}
.sec-link:hover, .sec-link:focus-visible {
  background: linear-gradient(135deg, var(--c-ph) 0%, var(--c-pa) 100%);
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--sh-lg), 0 8px 20px rgba(0,100,0,0.25);
}
.nav-btn:disabled, .play-btn:disabled {
  opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none;
}

/* Auto Speak Toggle */
.auto-speak-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-5);
  font-size: var(--tx-ba);
  border: 2px solid var(--c-bo);
  border-radius: var(--r-full);
  cursor: pointer;
  background: var(--c-su);
  color: var(--c-tm);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: var(--sh-sm);
  font-weight: var(--fw-sb);
}
.auto-speak-toggle:hover, .auto-speak-toggle:focus-visible {
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--sh-lg);
}
.auto-speak-toggle.is-on {
  background: linear-gradient(135deg, var(--c-pr) 0%, var(--c-ph) 100%);
  color: var(--c-ti);
  border-color: rgba(255,255,255,0.2);
}
.auto-speak-toggle .as-off { display: none; }
.auto-speak-toggle[aria-pressed="false"] .as-on { display: none; }
.auto-speak-toggle[aria-pressed="false"] .as-off { display: inline; }
.controls .auto-speak-toggle { flex: 1; min-width: 100px; }

/* Unified button aliases */
.btn-primary, .btn-secondary {
  padding: var(--sp-3) var(--sp-6); font-size: var(--tx-ba); border: none;
  border-radius: var(--r-full); cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  min-height: 52px; font-weight: var(--fw-sb); font-family: var(--font);
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--sp-2); text-decoration: none; position: relative; overflow: hidden;
  box-shadow: var(--sh-md);
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-pr) 0%, var(--c-ph) 100%);
  color: var(--c-ti); border: 2px solid rgba(255,255,255,0.2);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: linear-gradient(135deg, var(--c-ph) 0%, var(--c-pa) 100%);
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--sh-lg), 0 8px 20px rgba(0,100,0,0.25);
}
.btn-secondary {
  background: var(--c-su);
  color: var(--c-t2); border: 2px solid var(--c-bo);
}
.btn-secondary:hover, .btn-secondary:focus-visible {
  background: var(--n-100);
  color: var(--c-tx);
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--sh-lg);
}

/* Footer */
.footer {
  background: linear-gradient(135deg, var(--n-800) 0%, var(--n-900) 100%);
  color: var(--c-ti); text-align: center;
  padding: var(--sp-10) var(--sp-6) var(--sp-8);
  position: relative; overflow: hidden;
}
.footer::before {
  content: ""; position: absolute; top: -50%; left: 50%; transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,100,0,0.08) 0%, transparent 60%);
  border-radius: 50%;
}
.footer-inner {
  display: flex; flex-direction: column; gap: var(--sp-3);
  align-items: center; position: relative; z-index: 1;
}
.footer p { font-size: var(--tx-sm); opacity: 0.9; font-weight: var(--fw-m); }
.footer a { color: var(--p-300); text-decoration: none; font-weight: var(--fw-sb); transition: color var(--tr-f); }
.footer a:hover, .footer a:focus-visible { color: var(--p-200); text-decoration: underline; text-underline-offset: 3px; }
.footer-links {
  display: flex; gap: var(--sp-5); flex-wrap: wrap;
  justify-content: center; margin: var(--sp-2) 0;
}
.footer-links a {
  color: rgba(255,255,255,0.7); text-decoration: none;
  font-size: var(--tx-sm); font-weight: var(--fw-sb); transition: color var(--tr-f), transform var(--tr-f);
}
.footer-links a:hover, .footer-links a:focus-visible { color: #fff; transform: translateY(-2px); }

/* Messages */
.msg-list {
  width: min(100% - var(--sp-8), 1200px); margin: var(--sp-4) auto 0;
}
.msg-banner {
  border-radius: var(--r-lg); padding: var(--sp-4) var(--sp-5);
  margin-bottom: var(--sp-3); color: var(--c-ti);
  background: linear-gradient(135deg, var(--c-pr) 0%, var(--c-ph) 100%);
  font-weight: var(--fw-sb); animation: slideInLeft 0.4s ease both;
  position: relative; overflow: hidden; box-shadow: var(--sh-sm);
  border: 1px solid rgba(255,255,255,0.15);
}
.msg-success { background: linear-gradient(135deg, var(--c-ac) 0%, var(--c-ah) 100%); }
.msg-error { background: linear-gradient(135deg, var(--c-se) 0%, var(--c-sh) 100%); }
.msg-warning { background: linear-gradient(135deg, var(--c-wa) 0%, #e65100 100%); }
.msg-banner::after {
  content: ""; position: absolute; bottom: 0; left: 0; height: 3px;
  background: rgba(255,255,255,0.4); width: 100%; animation: msgBar 5s linear forwards;
}
@keyframes msgBar { from { width: 100%; } to { width: 0%; } }

/* Empty States */
.empty { max-width: 520px; margin: 0 auto; text-align: center; color: var(--c-tx); }
.empty-panel {
  background: linear-gradient(135deg, var(--c-mu) 0%, var(--p-50) 100%);
  border-radius: var(--r-xl); padding: var(--sp-12) var(--sp-8);
  border: 2px solid var(--c-bo); box-shadow: var(--sh-sm);
}
.empty h2 { font-size: var(--tx-2x); margin-bottom: var(--sp-3); font-weight: var(--fw-sb); }
.empty p { font-size: var(--tx-ba); margin-bottom: var(--sp-5); color: var(--c-t2); font-weight: var(--fw-m); }
.empty-icon { font-size: 5rem; margin-bottom: var(--sp-5); opacity: 0.5; animation: float 3s ease-in-out infinite; }

/* ================================================================
   NAVBAR
   ================================================================ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-st);
  background: linear-gradient(135deg, var(--c-su) 0%, var(--c-mu) 100%);
  border-bottom: 2px solid var(--c-bo); box-shadow: var(--sh-sm);
  backdrop-filter: blur(16px);
}
.navbar-inner {
  width: min(100% - var(--sp-8), 1200px); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-4); padding: var(--sp-3) var(--sp-4);
  position: relative; z-index: calc(var(--z-st) + 1);
}
.nav-brand {
  display: flex; align-items: center; gap: var(--sp-2);
  text-decoration: none; color: var(--c-tx);
  font-weight: var(--fw-sb); font-size: var(--tx-lg);
  transition: transform var(--tr-f); flex-shrink: 0;
}
.nav-brand:hover { transform: scale(1.03); }
.nav-brand-icon { font-size: 1.6rem; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1)); }
.nav-brand-text {
  background: linear-gradient(135deg, var(--c-pr), var(--c-ph));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 48px; height: 48px; background: var(--c-su);
  border: 2px solid var(--c-bo); border-radius: var(--r-md);
  cursor: pointer; padding: 0; transition: background var(--tr-f), border-color var(--tr-f), transform var(--tr-f);
  flex-shrink: 0; box-shadow: var(--sh-sm);
}
.nav-toggle:hover, .nav-toggle:focus-visible { background: var(--c-mu); border-color: var(--c-pr); transform: scale(1.05); }
.nav-toggle-bar {
  display: block; width: 22px; height: 3px;
  background: var(--c-tx); border-radius: var(--r-full);
  transition: transform var(--tr-b), opacity var(--tr-b), background var(--tr-f);
}
.nav-toggle.is-open .nav-toggle-bar:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.is-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle.is-open .nav-toggle-bar:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
.nav-links { display: flex; align-items: center; gap: var(--sp-2); margin-left: auto; }
.nav-link {
  display: flex; align-items: center; gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4); border-radius: var(--r-full);
  text-decoration: none; color: var(--c-t2); font-weight: var(--fw-sb);
  font-size: var(--tx-sm); transition: all var(--tr-f); position: relative;
}
.nav-link:hover, .nav-link:focus-visible { background: var(--c-mu); color: var(--c-tx); }
.nav-link.is-active {
  background: linear-gradient(135deg, var(--c-pr), var(--c-ph));
  color: var(--c-ti); box-shadow: var(--sh-sm);
}
.nav-link-icon { font-size: 1.1rem; }
.nav-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.3); backdrop-filter: blur(4px);
  z-index: var(--z-st); opacity: 0; transition: opacity var(--tr-b);
}
.nav-overlay.is-visible { display: block; opacity: 1; }

/* ================================================================
   NAVBAR SECONDARY LINKS (desktop — for parents & teachers)
   ================================================================ */
.nav-secondary {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}
.nav-secondary-link {
  text-decoration: none;
  color: var(--c-tm);
  font-size: var(--tx-xs);
  font-weight: var(--fw-sb);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--r-sm);
  transition: all var(--tr-f);
  white-space: nowrap;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.nav-secondary-link:hover, .nav-secondary-link:focus-visible {
  color: var(--c-tx);
  background: var(--c-mu);
}
.nav-secondary-link.is-active {
  color: var(--c-pr);
  background: rgba(0,100,0,0.08);
}

/* ================================================================
   NAVBAR MOBILE PANEL (secondary links)
   ================================================================ */
.nav-secondary-panel {
  display: none;
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(340px, 90vw);
  background: var(--c-su);
  background-color: var(--c-su);
  border-left: 2px solid var(--c-bo);
  box-shadow: -12px 0 48px rgba(0,0,0,0.18);
  z-index: calc(var(--z-st) + 2);
  flex-direction: column;
  padding: var(--sp-6);
  gap: var(--sp-3);
  transform: translateX(100%);
  transition: transform var(--tr-b);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.nav-secondary-panel.is-visible {
  display: flex;
  transform: translateX(0);
}
.nav-secondary-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-4);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--c-bo);
}
.nav-secondary-panel-title {
  font-weight: var(--fw-b);
  font-size: var(--tx-xl);
  color: var(--c-tx);
}
.nav-secondary-panel-close {
  background: transparent;
  border: none;
  font-size: 1.75rem;
  color: var(--c-t2);
  cursor: pointer;
  padding: var(--sp-1);
  line-height: 1;
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-md);
  transition: background var(--tr-f);
}
.nav-secondary-panel-close:hover, .nav-secondary-panel-close:focus-visible {
  background: var(--c-mu);
  color: var(--c-tx);
}
.nav-panel-link {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  border-radius: var(--r-lg);
  text-decoration: none;
  color: var(--c-t2);
  font-weight: var(--fw-sb);
  font-size: var(--tx-lg);
  transition: all var(--tr-f);
}
.nav-panel-link:hover, .nav-panel-link:focus-visible {
  background: var(--c-mu);
  color: var(--c-tx);
}
.nav-panel-link.is-active {
  background: linear-gradient(135deg, var(--c-pr), var(--c-ph));
  color: var(--c-ti);
}
.nav-panel-link-icon {
  font-size: 1.5rem;
  width: 32px;
  text-align: center;
}

/* ================================================================
   BOTTOM NAV (mobile only)
   ================================================================ */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--c-su);
  border-top: 1px solid var(--c-bo);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
  z-index: var(--z-to);
  padding-bottom: env(safe-area-inset-bottom);
}
.bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: var(--sp-2) var(--sp-1);
  color: var(--c-tm);
  text-decoration: none;
  font-size: clamp(0.58rem, 2.4vw, 0.65rem);
  font-weight: 600;
  transition: color 0.2s ease;
  position: relative;
}
.bottom-nav-item.is-active {
  color: var(--c-pr);
}
.bottom-nav-item.is-active::before {
  content: "";
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 32px; height: 3px;
  background: var(--c-pr);
  border-radius: 0 0 4px 4px;
}
.bottom-nav-icon {
  font-size: clamp(1.05rem, 4vw, 1.4rem);
  line-height: 1;
}

/* ================================================================
   HERO
   ================================================================ */
.hero {
  position: relative;
  background: linear-gradient(180deg, #B3E5FC 0%, #E1F5FE 25%, #FFF8E1 55%, var(--c-bg) 100%);
  overflow: hidden;
  padding: var(--sp-10) var(--sp-5) var(--sp-12);
  text-align: center;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-scene {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.hero-sun {
  position: absolute;
  top: 8%; right: 12%;
  width: 72px; height: 72px;
  background: radial-gradient(circle, #FFD54F 20%, #FF8C42 100%);
  border-radius: 50%;
  box-shadow: 0 0 50px rgba(255,210,0,0.5);
  animation: pulse 4s ease-in-out infinite;
}
.hero-cloud {
  position: absolute;
  background: rgba(255,255,255,0.75);
  border-radius: 50px;
}
.hero-cloud::before, .hero-cloud::after {
  content: ""; position: absolute; background: rgba(255,255,255,0.75); border-radius: 50%;
}
.hero-cloud-1 {
  top: 12%; left: 8%;
  width: 80px; height: 24px;
}
.hero-cloud-1::before { width: 36px; height: 36px; top: -16px; left: 12px; }
.hero-cloud-1::after { width: 28px; height: 28px; top: -10px; left: 40px; }
.hero-cloud-2 {
  top: 18%; left: 52%;
  width: 60px; height: 20px;
}
.hero-cloud-2::before { width: 28px; height: 28px; top: -12px; left: 10px; }
.hero-cloud-2::after { width: 22px; height: 22px; top: -8px; left: 32px; }
.hero-hill {
  position: absolute;
  bottom: 0;
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}
.hero-hill-1 {
  left: -10%; width: 70%; height: 110px;
  background: linear-gradient(180deg, #9CCC65 0%, #7CB342 100%);
}
.hero-hill-2 {
  right: -15%; width: 65%; height: 85px;
  background: linear-gradient(180deg, #AED581 0%, #8BC34A 100%);
}
.hero-hut {
  position: absolute;
  bottom: 55px; left: 14%;
  width: 44px; height: 30px;
  background: #D7CCC8;
  border-radius: 0 0 4px 4px;
}
.hero-hut::before {
  content: "";
  position: absolute;
  top: -22px; left: -4px;
  width: 0; height: 0;
  border-left: 26px solid transparent;
  border-right: 26px solid transparent;
  border-bottom: 26px solid #8D6E63;
}
.hero-tree {
  position: absolute;
  bottom: 45px;
  width: 6px; height: 28px;
  background: #795548;
  border-radius: 4px;
}
.hero-tree::before {
  content: "";
  position: absolute;
  top: -18px; left: -11px;
  width: 28px; height: 28px;
  background: #66BB6A;
  border-radius: 50%;
}
.hero-tree-1 { left: 7%; }
.hero-tree-2 { left: 22%; height: 20px; }
.hero-tree-2::before { top: -14px; width: 24px; height: 24px; left: -9px; }
.hero-bird {
  position: absolute;
  top: 22%; left: 35%;
  width: 14px; height: 3px;
  background: var(--n-600);
  border-radius: 50%;
  animation: birdFly 6s ease-in-out infinite;
}
.hero-bird::before {
  content: "";
  position: absolute;
  top: -3px; left: 2px;
  width: 5px; height: 5px;
  border-top: 2px solid var(--n-600);
  border-right: 2px solid var(--n-600);
  transform: rotate(-45deg);
  border-radius: 2px;
}
.hero-content { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem); font-weight: var(--fw-b);
  line-height: var(--lh-t); margin-bottom: var(--sp-4);
  color: var(--n-900); text-shadow: 0 2px 8px rgba(0,0,0,0.08);
  letter-spacing: -0.02em;
}
.hero p {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem); line-height: var(--lh-s);
  color: var(--n-700); font-weight: var(--fw-sb); max-width: 480px; margin: 0 auto;
}

/* ================================================================
   HOME QUICK BANNER
   ================================================================ */
.continue-card {
  max-width: 1200px; margin: 0 auto var(--sp-8);
  background: var(--c-su);
  border-radius: var(--r-xl);
  border: 1px solid var(--c-bo);
  box-shadow: var(--sh-md);
  overflow: hidden;
  animation: slideInLeft 0.5s ease both;
  position: relative;
}
.continue-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-pr), var(--c-ac));
}
.continue-card-inner {
  display: flex; align-items: center; gap: var(--sp-6);
  padding: var(--sp-6);
}
.continue-card-visual {
  flex-shrink: 0;
  width: 80px; height: 80px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--p-100), var(--a-100));
  border-radius: var(--r-lg);
  font-size: 2.5rem;
  box-shadow: var(--sh-sm);
}
.continue-card-body { flex: 1; min-width: 0; }
.continue-label {
  font-size: var(--tx-xs); font-weight: var(--fw-b);
  text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--c-tm); margin-bottom: var(--sp-1);
}
.continue-card-body h3 {
  font-size: var(--tx-xl); font-weight: var(--fw-sb);
  color: var(--c-tx); margin-bottom: var(--sp-2);
  line-height: var(--lh-t);
}
.continue-progress-wrap {
  display: flex; align-items: center; gap: var(--sp-3);
  margin-bottom: var(--sp-2);
}
.continue-progress {
  flex: 1; height: 10px; background: var(--n-200);
  border-radius: var(--r-full); overflow: hidden;
}
.continue-progress-bar {
  height: 100%; background: linear-gradient(90deg, var(--c-pr), var(--c-ac));
  border-radius: var(--r-full);
  transition: width 0.6s ease;
}
.continue-percent {
  font-size: var(--tx-sm); font-weight: var(--fw-b);
  color: var(--c-pr); min-width: 36px; text-align: right;
}
.continue-meta {
  font-size: var(--tx-sm); color: var(--c-t2);
  margin-bottom: var(--sp-3);
}
.continue-btn {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  background: linear-gradient(135deg, var(--c-pr), var(--c-ph));
  color: var(--c-ti); text-decoration: none;
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--r-lg); font-weight: var(--fw-b);
  font-size: var(--tx-sm); transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: var(--sh-sm);
}
.continue-btn:hover, .continue-btn:focus-visible { transform: translateY(-2px); box-shadow: var(--sh-md); }
.hlr {
  max-width: 1200px; margin: var(--sp-10) auto 0;
  display: flex; flex-wrap: wrap; justify-content: center; gap: var(--sp-3);
}

/* ================================================================
   ASK SHONA
   ================================================================ */
.ask-cta,
.ask-shell,
.ask-card,
.ask-empty-state,
.ask-form {
  background: var(--c-su);
  border: 1px solid var(--c-bo);
  box-shadow: var(--sh-sm);
}

.ask-cta {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto var(--sp-8);
  padding: clamp(var(--sp-4), 5%, var(--sp-6));
  border-radius: var(--r-xl);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: clamp(var(--sp-4), 5%, var(--sp-5));
  align-items: center;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
}
.ask-cta::before,
.ask-hero::before,
.ask-card::before {
  content: "";
  position: absolute;
  inset: auto auto 0 0;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(0,100,0,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.ask-cta-label,
.ask-card-label,
.ask-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-2);
  font-size: var(--tx-xs);
  font-weight: var(--fw-b);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-pr);
}
.ask-cta h2 {
  margin-bottom: var(--sp-2);
  font-size: clamp(1.5rem, 3vw, 2.15rem);
  line-height: var(--lh-t);
}
.ask-cta p {
  color: var(--c-t2);
  max-width: 52ch;
}
.ask-cta-form {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--sp-3);
}
.ask-cta-form input,
.ask-form-inner input {
  width: 100%;
  min-height: 56px;
  padding: var(--sp-4) var(--sp-5);
  border: 2px solid rgba(0,100,0,0.15);
  border-radius: var(--r-full);
  background: var(--c-su);
  color: var(--c-tx);
  font: inherit;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.04);
  transition: border-color var(--tr-f), box-shadow var(--tr-f), transform var(--tr-f);
}
.ask-cta-form input:focus,
.ask-form-inner input:focus {
  outline: none;
  border-color: var(--c-pr);
  box-shadow: 0 0 0 4px rgba(0,100,0,0.1);
  transform: translateY(-1px);
}

.ask-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #FFFDE7 0%, #FFF9C4 40%, #EDF7EE 100%);
  padding: var(--sp-10) 0 var(--sp-8);
}
.ask-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: var(--sp-6);
  align-items: end;
}
.ask-hero-copy h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: var(--lh-t);
  margin-bottom: var(--sp-3);
  color: var(--n-900);
}
.ask-hero-copy p,
.ask-hero-tips li,
.ask-form-meta,
.ask-card p {
  color: var(--n-700);
}
.ask-hero-copy p {
  max-width: 50ch;
  font-size: var(--tx-lg);
}
.ask-hero-tips {
  padding: var(--sp-5);
  border-radius: var(--r-xl);
  background: rgba(255,255,255,0.6);
  border: 1px solid rgba(255,255,255,0.7);
  box-shadow: var(--sh-sm);
}
.ask-hero-tips p {
  font-weight: var(--fw-b);
  margin-bottom: var(--sp-2);
  color: var(--n-900);
}
.ask-hero-tips ul {
  padding-left: var(--sp-5);
  display: grid;
  gap: var(--sp-2);
}

.ask-page {
  background:
    radial-gradient(circle at 10% 20%, rgba(0,100,0,0.05) 0%, transparent 28%),
    radial-gradient(circle at 88% 14%, rgba(255,210,0,0.05) 0%, transparent 24%),
    var(--c-bg);
  padding: clamp(var(--sp-6), 8%, var(--sp-12)) clamp(var(--sp-4), 5%, var(--sp-5));
  width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
}
.ask-shell {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: clamp(var(--sp-4), 5%, var(--sp-6));
  border-radius: var(--r-xl);
  box-sizing: border-box;
}
.ask-form {
  padding: var(--sp-5);
  border-radius: var(--r-xl);
  margin-bottom: var(--sp-6);
  background: linear-gradient(135deg, var(--p-50) 0%, var(--c-su) 100%);
}
.ask-form-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--sp-3);
  align-items: center;
}
.ask-submit {
  min-height: 56px;
  padding: var(--sp-4) var(--sp-6);
  border: none;
  border-radius: var(--r-full);
  background: linear-gradient(135deg, var(--c-pr), var(--c-ph));
  color: var(--c-ti);
  font: inherit;
  font-weight: var(--fw-sb);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  box-shadow: var(--sh-md);
  cursor: pointer;
  transition: transform var(--tr-f), box-shadow var(--tr-f), opacity var(--tr-f);
}
.ask-submit:hover,
.ask-submit:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--sh-lg);
}
.ask-submit:disabled,
.ask-form-inner input:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}
.ask-form-meta {
  margin-top: var(--sp-3);
  font-size: var(--tx-sm);
}
.ask-results.is-loading {
  opacity: 0.7;
}
.ask-card,
.ask-empty-state {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  padding: var(--sp-6);
}
.ask-card-error {
  background: linear-gradient(135deg, #FFF0EF 0%, #FFE8E3 100%);
}
.ask-card-warning {
  background: linear-gradient(135deg, #FFF8E7 0%, #FFF2C8 100%);
}
.ask-card-question {
  font-size: var(--tx-lg);
  color: var(--c-tx);
  margin-bottom: var(--sp-5);
}
.ask-answer-block {
  margin-bottom: var(--sp-5);
}
.ask-answer-lead {
  margin-bottom: var(--sp-2);
  font-weight: var(--fw-sb);
}
.ask-answer-main {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  line-height: var(--lh-t);
  margin-bottom: var(--sp-2);
  color: var(--n-900);
}
.ask-answer-meaning {
  font-size: var(--tx-lg);
}
.ask-answer-section + .ask-answer-section {
  margin-top: var(--sp-5);
}
.ask-answer-section h3 {
  margin-bottom: var(--sp-2);
  font-size: var(--tx-lg);
}
.ask-breakdown-list {
  padding-left: var(--sp-5);
  display: grid;
  gap: var(--sp-2);
}
.ask-answer-alt {
  font-size: var(--tx-xl);
  font-weight: var(--fw-sb);
  color: var(--c-pr);
}
.ask-grounding-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-3);
}
.ask-grounding-chip {
  display: grid;
  gap: var(--sp-1);
  padding: var(--sp-4);
  border-radius: var(--r-lg);
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(0,100,0,0.1);
  text-decoration: none;
  color: var(--c-tx);
  transition: transform var(--tr-f), box-shadow var(--tr-f), border-color var(--tr-f);
}
.ask-grounding-chip:hover,
.ask-grounding-chip:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(0,100,0,0.25);
  box-shadow: var(--sh-sm);
}
.ask-grounding-source {
  font-size: var(--tx-xs);
  font-weight: var(--fw-b);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-pr);
}
.ask-empty-state {
  text-align: center;
}
.ask-empty-icon {
  font-size: 3rem;
  margin-bottom: var(--sp-3);
}

/* ================================================================
   CATEGORIES / CARDS
   ================================================================ */
.categories {
  flex: 1;
  padding: clamp(var(--sp-8), 8%, var(--sp-12)) clamp(var(--sp-4), 5%, var(--sp-5));
  background: var(--c-bg);
  position: relative;
  width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
}
.categories::before {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 80px; height: 4px;
  background: linear-gradient(90deg, var(--c-pr), var(--c-ac));
  border-radius: var(--r-full);
}
.categories h2 {
  text-align: center; font-size: clamp(1.6rem, 4vw, 2.5rem);
  margin-bottom: var(--sp-8); font-weight: var(--fw-sb); color: var(--c-tx);
  position: relative;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(240px, 45vw, 280px), 1fr));
  gap: clamp(var(--sp-3), 3vw, var(--sp-5));
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
}
.card {
  background: var(--c-su);
  border-radius: var(--r-xl);
  padding: var(--sp-6) var(--sp-4) var(--sp-5);
  color: var(--c-tx);
  text-decoration: none; display: flex;
  flex-direction: column; align-items: center; text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  min-height: 220px; position: relative; overflow: hidden;
  border: 1px solid var(--c-bo);
  box-shadow: var(--sh-sm);
}

.path-card-track,
.home-path-track {
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 100, 0, 0.35) transparent;
}

.path-card-track::-webkit-scrollbar,
.home-path-track::-webkit-scrollbar {
  height: 0.55rem;
}

.path-card-track::-webkit-scrollbar-track,
.home-path-track::-webkit-scrollbar-track {
  background: transparent;
}

.path-card-track::-webkit-scrollbar-thumb,
.home-path-track::-webkit-scrollbar-thumb {
  background: rgba(0, 100, 0, 0.28);
  border-radius: var(--r-full);
}

.path-card,
.home-path-card {
  box-sizing: border-box;
  display: flex !important;
  flex-direction: column;
  height: 29rem;
}

.path-card-media,
.home-path-media {
  flex: 0 0 auto;
}

.path-card-title,
.path-card-description,
.home-path-title,
.home-path-description {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.path-card-title,
.home-path-title {
  -webkit-line-clamp: 2;
  min-height: 4.2rem;
}

.path-card-description,
.home-path-description {
  -webkit-line-clamp: 2;
  min-height: 2.85rem;
}

.path-card-progress,
.home-path-progress {
  margin-top: auto;
}

.learning-category-page {
  overflow-x: hidden;
}

.learning-category-shell,
.learning-category-info,
.learning-category-progress-column,
.learning-lesson-toolbar,
.learning-lesson-filter,
.learning-lesson-card {
  min-width: 0;
}

.learning-category-title,
.learning-lesson-heading {
  overflow-wrap: anywhere;
}

.static-page,
.static-page-shell,
.static-page-grid,
.static-page-section,
.static-split,
.static-card-grid,
.static-page .clay-card {
  box-sizing: border-box;
  min-width: 0;
}

.static-page-title,
.static-page h1,
.static-page h2,
.static-page h3,
.static-page p,
.static-page span,
.static-page a {
  overflow-wrap: anywhere;
}

.grammar-mobile-nav {
  display: none;
}

.grammar-guide-layout {
  width: min(100%, 1200px);
  box-sizing: border-box;
  overflow-x: hidden;
}

.grammar-guide-layout > * {
  min-width: 0;
}

.grammar-swipe-row {
  min-width: 0;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-pr), var(--c-ac));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.card:hover, .card:focus-visible {
  transform: translateY(-6px);
  box-shadow: var(--sh-lg);
  border-color: rgba(0,100,0,0.2);
}
.card:hover::before { opacity: 1; }
.card-icon {
  width: 72px; height: 72px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--p-100), var(--a-100));
  border-radius: var(--r-xl);
  font-size: 2.5rem;
  margin-bottom: var(--sp-3);
  position: relative; z-index: 1;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.card:hover .card-icon { transform: scale(1.1) rotate(-5deg); }
.card h3 {
  font-size: var(--tx-lg); margin-bottom: var(--sp-2);
  line-height: var(--lh-t); position: relative; z-index: 1;
  font-weight: var(--fw-sb); color: var(--c-tx);
}
.card p {
  font-size: var(--tx-sm); line-height: var(--lh-s);
  position: relative; z-index: 1; color: var(--c-t2); max-width: 220px;
}
.card-meta {
  margin-top: auto;
  font-size: var(--tx-xs);
  position: relative; z-index: 1; font-weight: var(--fw-sb);
  display: flex; align-items: center; gap: var(--sp-2);
  color: var(--c-tm);
  background: var(--n-100);
  padding: var(--sp-3) var(--sp-3);
  border-radius: var(--r-full);
}
.pr-wrap { width: 18px; height: 18px; flex-shrink: 0; }
.pr-wrap svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.pr-bg { fill: none; stroke: var(--n-300); stroke-width: 3; }
.pr-fill { fill: none; stroke: var(--c-ac); stroke-width: 3; stroke-linecap: round; }

/* ================================================================
   LESSON HEADER
   ================================================================ */
.lesson-header {
  display: none;
}
.lesson-header .back-link {
  color: var(--c-ti); text-decoration: none; font-size: var(--tx-sm);
  font-weight: var(--fw-sb); display: inline-flex; align-items: center;
  gap: var(--sp-2); padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-full); background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.2);
  transition: background var(--tr-f), transform var(--tr-f); flex-shrink: 0;
}
.lesson-header .back-link:hover { background: rgba(255,255,255,0.25); transform: translateX(-2px); }
.lesson-header h1 {
  font-size: clamp(1.2rem, 3vw, 1.8rem); font-weight: var(--fw-sb);
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.lesson-header-inner {
  width: min(100%, 1200px); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-4);
}
.lesson-heading p { margin-top: var(--sp-1); font-size: var(--tx-sm); opacity: 0.85; font-weight: var(--fw-m); }

/* Lesson Progress Bar */
.lpb {
  position: fixed; top: 0; left: 0; width: 100%; height: 4px;
  background: rgba(0,0,0,0.08); z-index: var(--z-fi);
}
.lpb > div {
  height: 100%; background: linear-gradient(90deg, var(--c-ac), var(--c-pr), var(--c-se));
  background-size: 200% 100%; transition: width var(--tr-b);
  border-radius: 0 var(--r-full) var(--r-full) 0;
  animation: shimmer 3s linear infinite;
}

/* ================================================================
   LESSON CONTAINER & FLASHCARD
   ================================================================ */
.lesson-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(var(--sp-6), 8%, var(--sp-8)) clamp(var(--sp-3), 5%, var(--sp-5));
  background:
    radial-gradient(circle at 15% 25%, rgba(0,100,0,0.04) 0%, transparent 40%),
    radial-gradient(circle at 85% 75%, rgba(231,114,114,0.04) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(139,195,74,0.03) 0%, transparent 50%),
    var(--c-bg);
  min-height: calc(100vh - 80px);
  position: relative;
  width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
}
.lesson-container .shape-1, .lesson-container .shape-2, .lesson-container .shape-3 {
  position: absolute; border-radius: 50%; pointer-events: none; opacity: 0.4;
  animation: float 6s ease-in-out infinite;
}
.lesson-container .shape-1 {
  width: min(80px, 15vw); height: min(80px, 15vw);
  background: radial-gradient(circle, var(--p-300), transparent 70%);
  top: 15%; left: 8%; animation-delay: 0s;
}
.lesson-container .shape-2 {
  width: min(120px, 20vw); height: min(120px, 20vw);
  background: radial-gradient(circle, var(--a-300), transparent 70%);
  bottom: 20%; right: 10%; animation-delay: 2s; animation-duration: 8s;
}
.lesson-container .shape-3 {
  width: min(60px, 12vw); height: min(60px, 12vw);
  background: radial-gradient(circle, var(--s-300), transparent 70%);
  top: 60%; left: 15%; animation-delay: 4s; animation-duration: 7s;
}

.flashcard {
  width: 100%; max-width: 520px; min-height: 360px;
  touch-action: pan-y;
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(0,0,0,0.08) 0%, transparent 40%),
    linear-gradient(160deg, #1E8449 0%, #006400 35%, #005200 70%, #003C00 100%);
  color: var(--c-ti); border-radius: var(--r-xl);
  margin-bottom: var(--sp-8);
  box-shadow:
    0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10),
    0 28px 56px rgba(0,100,0,0.22), inset 0 1px 0 rgba(255,255,255,0.25);
  text-align: center; position: relative;
  transition: box-shadow 0.5s ease, transform 0.3s ease;
  border: 3px solid rgba(255,255,255,0.18); overflow: hidden;
  cursor: pointer; perspective: 1000px;
}
/* Subtle dot pattern overlay */
.flashcard::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none; z-index: 0;
}
/* Large soft highlight orb */
.flashcard::after {
  content: ""; position: absolute; top: -25%; right: -15%;
  width: 260px; height: 260px;
  background: radial-gradient(circle, rgba(255,255,255,0.18) 0%, transparent 65%);
  border-radius: 50%; pointer-events: none; z-index: 0;
}
.flashcard:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow:
    0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12),
    0 32px 64px rgba(0,100,0,0.28), inset 0 1px 0 rgba(255,255,255,0.3);
}
.flashcard-inner {
  position: relative;
  width: 100%; min-height: 360px;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
  transform: translateZ(0);
}
.flashcard.is-flipped .flashcard-inner {
  transform: rotateY(180deg);
}
.flashcard-front, .flashcard-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-4);
  padding: var(--sp-10) var(--sp-8);
}
.flashcard-back {
  transform: rotateY(180deg);
}

/* Color-coded flashcards — card background matches the word being taught */
.flashcard.fc-blue { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.15) 0%, transparent 40%), radial-gradient(circle at 80% 80%, rgba(0,0,0,0.1) 0%, transparent 40%), linear-gradient(160deg, #5DADE2 0%, #4A90D9 35%, #357ABD 70%, #21618C 100%); box-shadow: 0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10), 0 28px 56px rgba(74,144,217,0.18), inset 0 1px 0 rgba(255,255,255,0.25); }
.flashcard.fc-blue:hover { box-shadow: 0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12), 0 32px 64px rgba(74,144,217,0.22), inset 0 1px 0 rgba(255,255,255,0.3); }
.flashcard.fc-red { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.15) 0%, transparent 40%), radial-gradient(circle at 80% 80%, rgba(0,0,0,0.1) 0%, transparent 40%), linear-gradient(160deg, #EC7063 0%, #E74C3C 35%, #C0392B 70%, #922B21 100%); box-shadow: 0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10), 0 28px 56px rgba(231,76,60,0.18), inset 0 1px 0 rgba(255,255,255,0.25); }
.flashcard.fc-red:hover { box-shadow: 0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12), 0 32px 64px rgba(231,76,60,0.22), inset 0 1px 0 rgba(255,255,255,0.3); }
.flashcard.fc-green { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.15) 0%, transparent 40%), radial-gradient(circle at 80% 80%, rgba(0,0,0,0.1) 0%, transparent 40%), linear-gradient(160deg, #52BE80 0%, #27AE60 35%, #1E8449 70%, #145A32 100%); box-shadow: 0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10), 0 28px 56px rgba(39,174,96,0.18), inset 0 1px 0 rgba(255,255,255,0.25); }
.flashcard.fc-green:hover { box-shadow: 0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12), 0 32px 64px rgba(39,174,96,0.22), inset 0 1px 0 rgba(255,255,255,0.3); }
.flashcard.fc-yellow { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.2) 0%, transparent 40%), radial-gradient(circle at 80% 80%, rgba(0,0,0,0.06) 0%, transparent 40%), linear-gradient(160deg, #F4D03F 0%, #F1C40F 35%, #D4AC0D 70%, #9A7D0A 100%); color: var(--n-900); box-shadow: 0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10), 0 28px 56px rgba(241,196,15,0.18), inset 0 1px 0 rgba(255,255,255,0.4); }
.flashcard.fc-yellow:hover { box-shadow: 0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12), 0 32px 64px rgba(241,196,15,0.22), inset 0 1px 0 rgba(255,255,255,0.45); }
.flashcard.fc-black { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.08) 0%, transparent 40%), radial-gradient(circle at 80% 80%, rgba(0,0,0,0.15) 0%, transparent 40%), linear-gradient(160deg, #34495E 0%, #2C3E50 35%, #1A252F 70%, #0B1016 100%); box-shadow: 0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10), 0 28px 56px rgba(44,62,80,0.18), inset 0 1px 0 rgba(255,255,255,0.15); }
.flashcard.fc-black:hover { box-shadow: 0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12), 0 32px 64px rgba(44,62,80,0.22), inset 0 1px 0 rgba(255,255,255,0.2); }
.flashcard.fc-white { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.4) 0%, transparent 40%), radial-gradient(circle at 80% 80%, rgba(0,0,0,0.04) 0%, transparent 40%), linear-gradient(160deg, #F8F9F9 0%, #ECF0F1 35%, #D5DBDB 70%, #BDC3C7 100%); color: var(--n-900); box-shadow: 0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10), 0 28px 56px rgba(189,195,199,0.18), inset 0 1px 0 rgba(255,255,255,0.6); }
.flashcard.fc-white:hover { box-shadow: 0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12), 0 32px 64px rgba(189,195,199,0.22), inset 0 1px 0 rgba(255,255,255,0.65); }
.flashcard.fc-orange { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.15) 0%, transparent 40%), radial-gradient(circle at 80% 80%, rgba(0,0,0,0.1) 0%, transparent 40%), linear-gradient(160deg, #F0A060 0%, #E67E22 35%, #D35400 70%, #A04000 100%); box-shadow: 0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10), 0 28px 56px rgba(230,126,34,0.18), inset 0 1px 0 rgba(255,255,255,0.25); }
.flashcard.fc-orange:hover { box-shadow: 0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12), 0 32px 64px rgba(230,126,34,0.22), inset 0 1px 0 rgba(255,255,255,0.3); }
.flashcard.fc-purple { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.15) 0%, transparent 40%), radial-gradient(circle at 80% 80%, rgba(0,0,0,0.1) 0%, transparent 40%), linear-gradient(160deg, #AF7AC5 0%, #9B59B6 35%, #8E44AD 70%, #6C3483 100%); box-shadow: 0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10), 0 28px 56px rgba(155,89,182,0.18), inset 0 1px 0 rgba(255,255,255,0.25); }
.flashcard.fc-purple:hover { box-shadow: 0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12), 0 32px 64px rgba(155,89,182,0.22), inset 0 1px 0 rgba(255,255,255,0.3); }
.flashcard.fc-pink { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.15) 0%, transparent 40%), radial-gradient(circle at 80% 80%, rgba(0,0,0,0.1) 0%, transparent 40%), linear-gradient(160deg, #F06292 0%, #E91E63 35%, #C2185B 70%, #880E4F 100%); box-shadow: 0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10), 0 28px 56px rgba(233,30,99,0.18), inset 0 1px 0 rgba(255,255,255,0.25); }
.flashcard.fc-pink:hover { box-shadow: 0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12), 0 32px 64px rgba(233,30,99,0.22), inset 0 1px 0 rgba(255,255,255,0.3); }
.flashcard.fc-brown { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.1) 0%, transparent 40%), radial-gradient(circle at 80% 80%, rgba(0,0,0,0.12) 0%, transparent 40%), linear-gradient(160deg, #A1887F 0%, #8D6E63 35%, #6D4C41 70%, #4E342E 100%); box-shadow: 0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10), 0 28px 56px rgba(141,110,99,0.18), inset 0 1px 0 rgba(255,255,255,0.2); }
.flashcard.fc-brown:hover { box-shadow: 0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12), 0 32px 64px rgba(141,110,99,0.22), inset 0 1px 0 rgba(255,255,255,0.25); }
.flashcard.fc-gray { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.1) 0%, transparent 40%), radial-gradient(circle at 80% 80%, rgba(0,0,0,0.12) 0%, transparent 40%), linear-gradient(160deg, #95A5A6 0%, #7F8C8D 35%, #616A6B 70%, #424949 100%); box-shadow: 0 4px 6px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10), 0 28px 56px rgba(127,140,141,0.18), inset 0 1px 0 rgba(255,255,255,0.2); }
.flashcard.fc-gray:hover { box-shadow: 0 6px 10px rgba(0,0,0,0.08), 0 14px 28px rgba(0,0,0,0.12), 0 32px 64px rgba(127,140,141,0.22), inset 0 1px 0 rgba(255,255,255,0.25); }

/* Light-background flashcards need dark text on counter + hints */
.flashcard.fc-yellow .card-counter,
.flashcard.fc-white .card-counter { background: rgba(0,0,0,0.75); color: #fff; border-color: rgba(0,0,0,0.5); }
.flashcard.fc-yellow .fc-hint,
.flashcard.fc-white .fc-hint { color: var(--n-800); background: rgba(0,0,0,0.08); border-color: rgba(0,0,0,0.06); }
.flashcard h2 {
  font-size: clamp(2.2rem, 7vw, 3.5rem); font-weight: var(--fw-b);
  line-height: var(--lh-t); position: relative; z-index: 1;
  text-shadow: 0 2px 8px rgba(0,0,0,0.15);
  letter-spacing: -0.01em;
}
.flashcard p {
  font-size: clamp(1.4rem, 4vw, 2rem); font-weight: var(--fw-m);
  opacity: 0.95; position: relative; z-index: 1;
}
.flashcard img {
  max-width: 100%; max-height: 220px; min-height: 120px;
  border-radius: var(--r-lg);
  object-fit: cover; box-shadow: var(--sh-lg);
  position: relative; z-index: 1; border: 4px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.1);
}
.flashcard .fc-hint {
  font-size: var(--tx-sm); opacity: 0.92; margin-top: auto;
  font-weight: var(--fw-sb); position: relative; z-index: 1;
  background: rgba(255,255,255,0.22); padding: var(--sp-2) var(--sp-5);
  border-radius: var(--r-full); letter-spacing: 0.02em;
  user-select: none; pointer-events: none;
  backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.flashcard-answer {
  font-size: clamp(1.8rem, 6vw, 3rem); font-weight: var(--fw-b);
  line-height: var(--lh-t); position: relative; z-index: 1;
  text-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.card-counter {
  position: absolute; top: var(--sp-4); right: var(--sp-4);
  background: rgba(255,255,255,0.88); backdrop-filter: blur(12px);
  padding: var(--sp-2) var(--sp-4); border-radius: var(--r-full);
  font-size: var(--tx-sm); font-weight: var(--fw-b);
  color: var(--n-800); border: 1px solid rgba(255,255,255,0.5); z-index: 2;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12); letter-spacing: 0.02em;
}

/* Controls */
.controls {
  display: flex; justify-content: center; gap: var(--sp-4);
  flex-wrap: wrap; position: relative; z-index: 1;
  width: 100%; max-width: 560px;
}
.controls .nav-btn, .controls .play-btn { flex: 1; min-width: 100px; }

/* Progress Dots */
.progress-dots {
  display: flex; justify-content: center; gap: var(--sp-2);
  margin-top: var(--sp-6); flex-wrap: wrap; max-width: 300px;
}
.progress-dot {
  width: 10px; height: 10px; border-radius: var(--r-full);
  background: var(--n-300); transition: background var(--tr-b), transform var(--tr-b);
}
.progress-dot.is-done { background: var(--c-ac); transform: scale(1.2); }
.progress-dot.is-current { background: var(--c-pr); transform: scale(1.4); box-shadow: 0 0 8px rgba(0,100,0,0.4); }

/* Keyboard Hints */
.key-hint {
  display: inline-flex; align-items: center; gap: var(--sp-3);
  margin-top: var(--sp-4); padding: var(--sp-2) var(--sp-4);
  background: var(--c-su); border: 2px solid var(--c-bo);
  border-radius: var(--r-lg); font-size: var(--tx-xs);
  color: var(--c-tm); font-weight: var(--fw-sb); box-shadow: var(--sh-sm);
}
.key-hint kbd {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 28px; height: 28px; padding: 0 var(--sp-2);
  background: linear-gradient(180deg, var(--n-100), var(--n-200));
  border: 1px solid var(--n-300); border-radius: var(--r-sm);
  font-family: var(--font); font-size: var(--tx-xs); font-weight: var(--fw-sb);
  color: var(--n-700); box-shadow: 0 2px 0 var(--n-300);
}

/* ================================================================
   WORD EXPLORER — Visual Improvements
   ================================================================ */

/* Stats Row */
.exp-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}
.exp-stat-card {
  background: linear-gradient(145deg, var(--c-su) 0%, var(--c-mu) 100%);
  border-radius: var(--r-xl);
  padding: var(--sp-5);
  text-align: center;
  border: 2px solid var(--c-bo);
  box-shadow: var(--sh-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.exp-stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--sh-md);
}
.exp-stat-num {
  display: block;
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: var(--fw-b);
  color: var(--c-pr);
  line-height: 1;
}
.exp-stat-label {
  display: block;
  font-size: var(--tx-sm);
  color: var(--c-tm);
  font-weight: var(--fw-sb);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: var(--sp-2);
}

/* Category Chips */
.category-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-5);
  justify-content: center;
}
.category-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-full);
  background: var(--c-su);
  border: 2px solid var(--c-bo);
  color: var(--c-t2);
  text-decoration: none;
  font-size: var(--tx-sm);
  font-weight: var(--fw-sb);
  transition: all var(--tr-f);
  box-shadow: var(--sh-sm);
}
.category-chip:hover, .category-chip:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--sh-md);
  border-color: var(--c-pr);
  color: var(--c-tx);
}
.category-chip.is-active {
  background: linear-gradient(135deg, var(--c-pr), var(--c-ph));
  color: var(--c-ti);
  border-color: transparent;
}

/* Word Cards */
.word-card .d-card-copy {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.word-card-shona {
  display: block;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: var(--fw-b);
  color: var(--c-tx);
  line-height: var(--lh-t);
}
.word-card-en {
  display: block;
  font-size: var(--tx-lg);
  color: var(--c-pr);
  font-weight: var(--fw-sb);
}

/* ================================================================
   ASK SHONA — Visual Improvements
   ================================================================ */

.ask-suggestion-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
}
.ask-chip {
  display: inline-flex;
  align-items: center;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-full);
  background: rgba(255,255,255,0.65);
  border: 2px solid rgba(255,255,255,0.8);
  color: var(--n-800);
  font-size: var(--tx-sm);
  font-weight: var(--fw-sb);
  cursor: pointer;
  transition: all var(--tr-f);
  box-shadow: var(--sh-sm);
  font-family: var(--font);
}
.ask-chip:hover, .ask-chip:focus-visible {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: var(--sh-md);
  border-color: var(--c-pr);
}

.ask-categories {
  max-width: 960px;
  margin: var(--sp-6) auto 0;
}
.ask-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-4);
}
.ask-cat-card {
  background: var(--c-su);
  border-radius: var(--r-xl);
  padding: var(--sp-5);
  border: 2px solid var(--c-bo);
  box-shadow: var(--sh-sm);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.ask-cat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-md);
}
.ask-cat-icon {
  font-size: 2.5rem;
  margin-bottom: var(--sp-2);
  line-height: 1;
}
.ask-cat-card h3 {
  font-size: var(--tx-lg);
  font-weight: var(--fw-sb);
  margin-bottom: var(--sp-2);
  color: var(--c-tx);
}
.ask-cat-card p {
  font-size: var(--tx-sm);
  color: var(--c-t2);
  margin: 0;
}

/* ================================================================
   LEGACY FLASHCARD — Completion Overlay
   ================================================================ */
.lesson-complete-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  z-index: calc(var(--z-to) + 10);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-5);
}
.lesson-complete-panel {
  background: var(--c-su);
  border-radius: var(--r-xl);
  padding: var(--sp-10) var(--sp-8);
  max-width: 480px;
  width: 100%;
  text-align: center;
  border: 3px solid var(--c-pr);
  box-shadow: var(--sh-xl);
  animation: scaleIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
.lesson-complete-icon {
  font-size: 5rem;
  margin-bottom: var(--sp-4);
  line-height: 1;
  animation: float 2s ease-in-out infinite;
}
.lesson-complete-panel h2 {
  font-size: var(--tx-2x);
  font-weight: var(--fw-b);
  margin-bottom: var(--sp-3);
  color: var(--c-tx);
}
.lesson-complete-panel p {
  font-size: var(--tx-lg);
  color: var(--c-t2);
  margin-bottom: var(--sp-5);
}
.lesson-complete-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3);
}

/* ================================================================
   WORD EXPLORER (legacy styles preserved)
   ================================================================ */
.page-word-explorer .site-main,
.page-error .site-main,
.page-grammar .site-main { background: var(--c-bg); }

.section {
  padding: clamp(var(--sp-6), 8%, var(--sp-8)) clamp(var(--sp-4), 5%, var(--sp-5));
  width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
}
.exp-layout {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
  padding: 0 clamp(var(--sp-4), 5%, var(--sp-5));
}
.exp-form {
  background: linear-gradient(135deg, var(--c-mu) 0%, var(--p-50) 100%);
  border-radius: var(--r-xl); padding: var(--sp-6);
  margin-bottom: var(--sp-6); border: 2px solid var(--c-bo);
  box-shadow: var(--sh-sm); position: relative; overflow: hidden;
}
.exp-form::before {
  content: ""; position: absolute; top: -30%; right: -10%;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(0,100,0,0.05) 0%, transparent 70%);
  border-radius: 50%;
}
.exp-form.is-loading {
  opacity: 0.7;
  pointer-events: none;
}
.exp-form.is-loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 24px;
  height: 24px;
  margin: -12px 0 0 -12px;
  border: 3px solid var(--n-300);
  border-top-color: var(--c-pr);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.f-row {
  display: flex; flex-direction: column; gap: var(--sp-2);
  margin-bottom: var(--sp-4); position: relative; z-index: 1;
}
.f-row label {
  font-weight: var(--fw-sb); font-size: var(--tx-sm); color: var(--c-t2);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.f-row input, .f-row select {
  width: 100%; padding: var(--sp-3) var(--sp-4);
  border: 2px solid var(--c-bo); border-radius: var(--r-lg);
  background: var(--c-su); color: var(--c-tx); font-family: var(--font);
  font-size: var(--tx-ba); transition: border-color var(--tr-f), box-shadow var(--tr-f), transform var(--tr-f);
  box-shadow: var(--sh-inset);
}
.f-row input:focus, .f-row select:focus {
  outline: none; border-color: var(--c-pr);
  box-shadow: 0 0 0 4px rgba(0,100,0,0.08), var(--sh-inset);
  transform: translateY(-1px);
}
.f-row input::placeholder { color: var(--c-tm); }
.exp-results-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}
.w-res {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-4);
  align-items: start;
}
.d-card {
  background: var(--c-su); border-radius: var(--r-xl); padding: var(--sp-5);
  box-shadow: var(--sh-sm); display: flex; flex-direction: column; gap: var(--sp-3);
  border: 1px solid var(--c-bo);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
  position: relative; overflow: hidden;
}
.d-card-copy { display: grid; gap: var(--sp-2); }
.d-card::before {
  content: ""; position: absolute; top: 0; left: 0; width: 4px; height: 100%;
  background: linear-gradient(180deg, var(--c-pr), var(--c-ac)); opacity: 0;
  transition: opacity var(--tr-b);
}
.d-card:hover, .d-card:focus-visible { transform: translateY(-4px) scale(1.01); box-shadow: var(--sh-md); }
.d-card:hover::before, .d-card:focus-visible::before { opacity: 1; }
.d-card h2 { font-size: var(--tx-xl); margin-bottom: var(--sp-1); font-weight: var(--fw-sb); color: var(--c-tx); }
.d-card p { font-size: var(--tx-ba); color: var(--c-t2); }
.d-card-translation { font-weight: var(--fw-md); line-height: 1.45; }
.meta-row {
  display: flex; flex-wrap: wrap; gap: var(--sp-3);
  color: var(--c-tm); font-size: var(--tx-xs); font-weight: var(--fw-sb);
}
.meta-row span {
  background: var(--c-mu); padding: var(--sp-1) var(--sp-3);
  border-radius: var(--r-full); border: 1px solid var(--c-bo);
}
.d-card-act { display: flex; justify-content: flex-start; gap: var(--sp-2); }
.res-count, .res-page {
  font-size: var(--tx-sm);
  color: var(--c-tm);
  font-weight: var(--fw-sb);
}
.exp-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}
.exp-pagination-status {
  font-size: var(--tx-sm);
  color: var(--c-tm);
  font-weight: var(--fw-sb);
}

/* ================================================================
   GRAMMAR — Visual Card-First Redesign (Kid-Friendly)
   ================================================================ */

.gram-section { margin-bottom: var(--sp-10); }
.gram-section-title {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: var(--fw-b);
  margin-bottom: var(--sp-3);
  color: var(--c-tx);
  text-align: center;
}
.gram-section-lead {
  text-align: center;
  color: var(--c-t2);
  font-size: var(--tx-lg);
  margin-bottom: var(--sp-6);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Fun Fact Banner */
.gram-fact-banner {
  background: linear-gradient(135deg, var(--c-mu) 0%, var(--p-50) 100%);
  border-radius: var(--r-xl);
  padding: var(--sp-6);
  border: 2px solid var(--c-bo);
  box-shadow: var(--sh-sm);
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  margin-bottom: var(--sp-10);
}
.gram-fact-icon {
  font-size: 3rem;
  flex-shrink: 0;
  line-height: 1;
}

/* Visual Mini-Cards */
.gram-visual-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-4);
}
.gram-point-card {
  background: var(--c-su);
  border-radius: var(--r-xl);
  padding: var(--sp-6) var(--sp-5);
  border: 2px solid var(--c-bo);
  box-shadow: var(--sh-sm);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.gram-point-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-md);
}
.gram-point-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--p-100), var(--a-100));
  border-radius: var(--r-xl);
  font-size: 1.75rem;
  margin: 0 auto var(--sp-3);
}
.gram-point-card p {
  margin: 0;
  font-size: var(--tx-ba);
  font-weight: var(--fw-m);
  color: var(--c-t2);
  line-height: var(--lh-s);
}

/* Vowel Cards */
.vowel-card {
  padding: var(--sp-6) var(--sp-4);
  border-top: 5px solid var(--n-300);
}
.vowel-letter {
  font-size: 3.5rem;
  font-weight: var(--fw-b);
  line-height: 1;
  margin-bottom: var(--sp-3);
  color: var(--c-tx);
}
.vowel-sound {
  font-size: var(--tx-sm);
  color: var(--c-tm);
  margin-bottom: var(--sp-2);
}
.vowel-sound strong {
  color: var(--c-tx);
}
.vowel-example {
  font-size: var(--tx-lg);
  font-weight: var(--fw-sb);
  color: var(--c-pr);
  font-style: italic;
}
.vowel-note {
  font-size: 0.85em;
  color: var(--c-tm);
}
.vowel-a { border-top-color: #009739; }
.vowel-e { border-top-color: #E5C100; }
.vowel-i { border-top-color: #DC143C; }
.vowel-o { border-top-color: #4A90D9; }
.vowel-u { border-top-color: #9B59B6; }

/* How A Noun Is Built — Big Cards */
.gram-build-v2 {
  background: var(--c-su);
  border-radius: var(--r-xl);
  padding: var(--sp-6) var(--sp-5);
  border: 2px solid var(--c-bo);
  box-shadow: var(--sh-sm);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}
.gram-build-v2:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-md);
}
.gram-build-v2::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-pr), var(--c-ac));
}
.gram-build-equation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-3);
  flex-wrap: wrap;
}
.gram-build-part {
  background: var(--c-mu);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-md);
  font-weight: var(--fw-b);
  color: var(--c-tx);
  font-size: var(--tx-lg);
}
.gram-build-plus {
  color: var(--c-tm);
  font-weight: var(--fw-b);
  font-size: var(--tx-xl);
}
.gram-build-word {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: var(--fw-b);
  color: var(--c-pr);
  margin: var(--sp-2) 0;
}
.gram-build-meaning {
  color: var(--c-t2);
  font-size: var(--tx-lg);
  margin-bottom: var(--sp-3);
}

/* Noun Class Groups */
.noun-class-group { margin-bottom: var(--sp-8); }
.noun-class-group-title {
  font-size: var(--tx-xl);
  font-weight: var(--fw-sb);
  color: var(--c-tx);
  margin-bottom: var(--sp-4);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

/* Noun Class Cards */
.noun-class-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--sp-4);
}
.noun-class-card {
  background: var(--c-su);
  border-radius: var(--r-xl);
  padding: var(--sp-5) var(--sp-3);
  border: 2px solid var(--c-bo);
  box-shadow: var(--sh-sm);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.noun-class-card:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: var(--sh-md);
}
.noun-class-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-pr), var(--c-ac));
}
.noun-class-number {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-pr), var(--c-ph));
  color: var(--c-ti);
  border-radius: 50%;
  font-size: var(--tx-lg);
  font-weight: var(--fw-b);
  margin: 0 auto var(--sp-2);
}
.noun-class-prefix {
  display: inline-block;
  background: var(--c-mu);
  color: var(--c-pr);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--r-full);
  font-weight: var(--fw-b);
  font-size: var(--tx-sm);
  margin-bottom: var(--sp-2);
}
.noun-class-word {
  font-size: var(--tx-lg);
  font-weight: var(--fw-sb);
  color: var(--c-tx);
  margin: 0;
  line-height: var(--lh-t);
}

/* Noun Class Color Accents */
.nc-people::before { background: linear-gradient(90deg, #009739, #007A30); }
.nc-nature::before { background: linear-gradient(90deg, #FCE300, #E5C100); }
.nc-things::before { background: linear-gradient(90deg, #DC143C, #B01030); }
.nc-animals::before { background: linear-gradient(90deg, #424242, #212121); }
.nc-small::before { background: linear-gradient(90deg, #4A90D9, #357ABD); }
.nc-abstract::before { background: linear-gradient(90deg, #9B59B6, #8E44AD); }
.nc-places::before { background: linear-gradient(90deg, #00BCD4, #0097A7); }

/* Legend dots */
.noun-class-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
  font-size: var(--tx-sm);
  font-weight: var(--fw-sb);
  color: var(--c-t2);
}
.legend-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: inline-block;
}
.nc-people-bg { background: #009739; }
.nc-nature-bg { background: #FCE300; border: 1px solid rgba(0,0,0,0.15); }
.nc-things-bg { background: #DC143C; }
.nc-animals-bg { background: #424242; }
.nc-small-bg { background: #4A90D9; }
.nc-abstract-bg { background: #9B59B6; }
.nc-places-bg { background: #00BCD4; }

/* Expressive Prefix Cards */
.expressive-card {
  background: var(--c-su);
  border-radius: var(--r-xl);
  padding: var(--sp-5);
  border: 2px solid var(--c-bo);
  box-shadow: var(--sh-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}
.expressive-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-md);
}
.expressive-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-pr), var(--c-ac));
  border-radius: var(--r-xl) var(--r-xl) 0 0;
}
.expressive-header {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}
.expressive-meaning {
  font-size: var(--tx-ba);
  color: var(--c-t2);
  margin-bottom: var(--sp-3);
  line-height: var(--lh-s);
}
.expressive-examples {
  font-size: var(--tx-sm);
  color: var(--c-pr);
  font-weight: var(--fw-sb);
  margin: 0;
}

/* Study Steps */
.study-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-4);
}
.study-step {
  background: var(--c-su);
  border-radius: var(--r-xl);
  padding: var(--sp-5);
  border: 2px solid var(--c-bo);
  box-shadow: var(--sh-sm);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}
.study-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-md);
}
.study-step-num {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-pr), var(--c-ph));
  color: var(--c-ti);
  border-radius: 50%;
  font-weight: var(--fw-b);
  margin: 0 auto var(--sp-2);
}
.study-step-icon {
  font-size: 2rem;
  margin-bottom: var(--sp-2);
  line-height: 1;
}
.study-step p {
  margin: 0;
  color: var(--c-t2);
  font-size: var(--tx-ba);
  font-weight: var(--fw-m);
}

/* Grammar Responsive */
@media (max-width: 768px) {
  .gram-fact-banner { flex-direction: column; text-align: center; padding: var(--sp-5); }
  .gram-fact-icon { font-size: 2.5rem; }
  .gram-visual-grid { grid-template-columns: 1fr; }
  .noun-class-grid { grid-template-columns: repeat(2, 1fr); gap: var(--sp-3); }
  .noun-class-card { padding: var(--sp-4) var(--sp-2); }
  .study-steps { grid-template-columns: 1fr; }
  .gram-build-equation { gap: var(--sp-1); }
  .gram-build-part { font-size: var(--tx-ba); padding: var(--sp-1) var(--sp-3); }
  .exp-stats-row { grid-template-columns: repeat(3, 1fr); gap: var(--sp-3); }
  .exp-stat-card { padding: var(--sp-4); }
  .category-chips { gap: var(--sp-1); }
  .category-chip { padding: var(--sp-1) var(--sp-3); font-size: var(--tx-xs); }
  .ask-cat-grid { grid-template-columns: repeat(2, 1fr); gap: var(--sp-3); }
  .ask-cat-card { padding: var(--sp-4); }
  .ask-chip { font-size: var(--tx-xs); padding: var(--sp-1) var(--sp-3); }
}

@media (max-width: 480px) {
  .noun-class-grid { grid-template-columns: repeat(2, 1fr); gap: var(--sp-2); }
  .noun-class-number { width: 36px; height: 36px; font-size: var(--tx-ba); }
  .noun-class-prefix { font-size: var(--tx-xs); }
  .noun-class-word { font-size: var(--tx-ba); }
}

/* ================================================================
   GRAMMAR (legacy styles preserved)
   ================================================================ */
.gram-layout { max-width: 1200px; margin: 0 auto; display: grid; gap: var(--sp-4); }
.gram-hero, .gram-card {
  background: linear-gradient(135deg, var(--c-mu) 0%, var(--p-50) 100%);
  border-radius: var(--r-xl); padding: var(--sp-6);
  border: 2px solid var(--c-bo); box-shadow: var(--sh-sm);
  position: relative; overflow: hidden;
}
.gram-hero h2, .gram-card h3 {
  margin-bottom: var(--sp-3); font-size: var(--tx-xl);
  font-weight: var(--fw-sb); color: var(--c-tx);
}
.gram-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--sp-4); }
.gram-list { padding-left: var(--sp-5); display: grid; gap: var(--sp-2); }
.gram-list li { line-height: var(--lh-n); font-size: var(--tx-ba); }
.gram-list li::marker { color: var(--c-pr); font-size: 1.2em; }
.gram-build-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--sp-4); }
.gram-build {
  background: var(--c-su); border-radius: var(--r-lg); padding: var(--sp-4);
  border: 2px solid var(--c-bo); text-align: center;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
  position: relative; overflow: hidden;
}
.gram-build:hover { transform: translateY(-4px); box-shadow: var(--sh-md); border-color: var(--c-pr); }
.gram-build h4 { margin: var(--sp-2) 0; font-size: var(--tx-lg); font-weight: var(--fw-sb); color: var(--c-pr); }
.gram-tbl-wrap { overflow-x: auto; border-radius: var(--r-lg); border: 2px solid var(--c-bo); box-shadow: var(--sh-sm); position: relative; }
.gram-tbl-wrap::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 30px;
  background: linear-gradient(to right, transparent, var(--c-su));
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--tr-b);
}
@media (max-width: 768px) {
  .gram-tbl-wrap::after { opacity: 1; }
}
.gram-tbl {
  width: 100%; border-collapse: collapse; min-width: 600px; background: var(--c-su);
}
.gram-tbl th, .gram-tbl td {
  padding: var(--sp-3) var(--sp-4); text-align: left;
  border-bottom: 1px solid var(--c-bo); vertical-align: top; font-size: var(--tx-ba);
}
.gram-tbl th {
  background: linear-gradient(135deg, rgba(0,100,0,0.1) 0%, rgba(0,100,0,0.05) 100%);
  font-weight: var(--fw-sb); color: var(--n-800);
  text-transform: uppercase; font-size: var(--tx-xs); letter-spacing: 0.05em;
}
.gram-tbl tbody tr { transition: background var(--tr-f); }
.gram-tbl tbody tr:hover { background: var(--c-mu); }
.gram-sn { color: var(--c-t2); line-height: var(--lh-n); font-size: var(--tx-sm); margin-bottom: var(--sp-3); }
.gram-sl { margin: var(--sp-2) 0 0; color: var(--c-tm); font-size: var(--tx-sm); }
.gram-sl a { color: var(--c-pr); font-weight: var(--fw-sb); text-decoration: none; border-bottom: 2px solid var(--c-pr); transition: color var(--tr-f), border-color var(--tr-f); }
.gram-sl a:hover { color: var(--c-ph); border-color: var(--c-ph); }
.copy-btn {
  background: linear-gradient(135deg, var(--c-pr) 0%, var(--c-ph) 100%);
  color: var(--c-ti); border: none; border-radius: var(--r-full);
  padding: var(--sp-2) var(--sp-4); font-size: var(--tx-xs); font-weight: var(--fw-sb);
  cursor: pointer; transition: transform var(--tr-f), box-shadow var(--tr-f);
  box-shadow: var(--sh-sm); margin-top: var(--sp-3);
}
.copy-btn:hover { transform: translateY(-2px); box-shadow: var(--sh-md); }
.print-btn {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  background: var(--c-su); color: var(--c-tx); border: 2px solid var(--c-bo);
  border-radius: var(--r-full); padding: var(--sp-3) var(--sp-5);
  font-size: var(--tx-sm); font-weight: var(--fw-sb); cursor: pointer;
  transition: all var(--tr-f); box-shadow: var(--sh-sm);
}
.print-btn:hover { border-color: var(--c-pr); background: var(--c-mu); transform: translateY(-2px); box-shadow: var(--sh-md); }
.practice-kicker {
  font-size: var(--tx-xs); font-weight: var(--fw-sb); text-transform: uppercase;
  color: var(--c-wa); margin-bottom: var(--sp-2); letter-spacing: 0.08em;
}

/* ================================================================
   STAFF DASHBOARD
   ================================================================ */
.mgmt-grid { max-width: 1200px; margin: 0 auto; display: grid; gap: var(--sp-8); }
.mgmt-act { display: flex; gap: var(--sp-3); flex-wrap: wrap; margin-bottom: var(--sp-4); }
.mgmt-panel {
  background: var(--c-su); border-radius: var(--r-xl); padding: var(--sp-6);
  border: 2px solid var(--c-bo); box-shadow: var(--sh-sm);
}
.sect-head { margin-bottom: var(--sp-5); }
.sect-head h2 { font-size: var(--tx-2x); font-weight: var(--fw-sb); margin-bottom: var(--sp-2); color: var(--c-tx); }
.sect-head p { color: var(--c-tm); font-size: var(--tx-sm); font-weight: var(--fw-m); }
.data-list { display: grid; gap: var(--sp-4); }
.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: var(--sp-4); margin-bottom: var(--sp-6); }
.stat-card {
  background: linear-gradient(135deg, var(--c-su) 0%, var(--c-mu) 100%);
  border-radius: var(--r-xl); padding: var(--sp-5); text-align: center;
  border: 2px solid var(--c-bo);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: ""; position: absolute; top: -30%; left: 50%; transform: translateX(-50%);
  width: 100px; height: 100px;
  background: radial-gradient(circle, rgba(0,100,0,0.07) 0%, transparent 70%);
  border-radius: 50%;
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--sh-md); border-color: var(--c-pr); }
.stat-num { font-size: var(--tx-3x); font-weight: var(--fw-b); color: var(--c-pr); line-height: var(--lh-t); position: relative; z-index: 1; }
.stat-label { font-size: var(--tx-sm); color: var(--c-tm); font-weight: var(--fw-sb); margin-top: var(--sp-2); text-transform: uppercase; letter-spacing: 0.05em; }
.badge {
  display: inline-block; padding: var(--sp-1) var(--sp-3); border-radius: var(--r-full);
  font-size: var(--tx-xs); font-weight: var(--fw-sb); text-transform: uppercase; letter-spacing: 0.05em;
}
.badge-ok { background: linear-gradient(135deg, var(--a-100) 0%, var(--a-50) 100%); color: var(--a-700); border: 1px solid var(--a-200); }
.badge-er { background: linear-gradient(135deg, var(--s-100) 0%, var(--s-50) 100%); color: var(--s-700); border: 1px solid var(--s-200); }
.d-card-act .sec-link { font-size: var(--tx-sm); padding: var(--sp-2) var(--sp-4); }

/* ================================================================
   FORMS
   ================================================================ */
.form-layout { max-width: 800px; margin: 0 auto; }
.content-form { display: grid; gap: var(--sp-4); }
.f-row input[type="file"] { padding: var(--sp-3); }
.f-help { font-size: var(--tx-xs); color: var(--c-tm); margin-top: var(--sp-1); font-weight: var(--fw-m); }
.f-err {
  list-style: none; display: grid; gap: var(--sp-2); margin-top: var(--sp-2);
}
.f-err li {
  color: var(--c-er); font-size: var(--tx-sm); font-weight: var(--fw-sb);
  display: flex; align-items: center; gap: var(--sp-2);
  background: var(--s-50); padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-md); border-left: 3px solid var(--c-er);
}
.form-act {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: var(--sp-3); margin-top: var(--sp-4);
}

/* ================================================================
   ANIMATIONS
   ================================================================ */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.85); } to { opacity: 1; transform: scale(1); } }
@keyframes slideInLeft { from { opacity: 0; transform: translateX(-40px); } to { opacity: 1; transform: translateX(0); } }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.7; transform: scale(1.05); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
@keyframes blob { 0%, 100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; } 50% { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; } }
@keyframes birdFly { 0%, 100% { transform: translateX(0) translateY(0); } 25% { transform: translateX(10px) translateY(-4px); } 50% { transform: translateX(20px) translateY(0); } 75% { transform: translateX(30px) translateY(-3px); } }

.a-fiu { animation: fadeInUp 0.7s ease both; }
.a-fi { animation: fadeIn 0.5s ease both; }
.a-sci { animation: scaleIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both; }
.a-sil { animation: slideInLeft 0.5s ease both; }
.a-pu { animation: pulse 2s ease-in-out infinite; }
.a-fl { animation: float 4s ease-in-out infinite; }
.sg-1 { animation-delay: 0.06s; }
.sg-2 { animation-delay: 0.12s; }
.sg-3 { animation-delay: 0.18s; }
.sg-4 { animation-delay: 0.24s; }
.sg-5 { animation-delay: 0.30s; }
.sg-6 { animation-delay: 0.36s; }

@media (prefers-reduced-motion: reduce) {
  .a-fiu, .a-fi, .a-sci, .a-sil, .a-pu, .a-fl {
    animation: none; opacity: 1; transform: none;
  }
}

/* ================================================================
   RESPONSIVE — Large Tablet (max-width: 992px)
   ================================================================ */
@media (max-width: 992px) {
  :root { --navbar-height: 44px; }
  /* Hide footer on mobile/tablet except on static pages (About, Contact, Privacy, Cookies) */
  .footer { display: none; }
  .page-about .footer,
  .page-contact .footer,
  .page-privacy .footer,
  .page-cookies .footer { display: block; }
  .container { width: min(100% - var(--sp-6), 1200px); }
  .navbar-inner { width: min(100% - var(--sp-6), 1200px); padding: var(--sp-2) var(--sp-4); }
  .nav-brand-text { font-size: var(--tx-ba); }
  .nav-link { padding: var(--sp-2) var(--sp-3); font-size: var(--tx-xs); }

  .hero { padding: var(--sp-10) var(--sp-5) var(--sp-12); min-height: 380px; }
  .hero h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
  .hero p { font-size: clamp(1rem, 2vw, 1.25rem); }
  .hero-sun { width: 64px; height: 64px; }
  .hero-hill-1 { height: 100px; }
  .hero-hill-2 { height: 75px; }

  .categories { padding: var(--sp-10) var(--sp-5) var(--sp-12); }
  .card-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--sp-4); }
  .card { min-height: 200px; padding: var(--sp-5) var(--sp-4) var(--sp-4); }

  .ask-cta { grid-template-columns: 1fr; }
  .ask-hero-inner { grid-template-columns: minmax(0, 1.2fr) minmax(240px, 0.8fr); }

  .section { padding: var(--sp-8) var(--sp-5); }
  .w-res { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

  .lesson-container { padding: var(--sp-8) var(--sp-5); }
  .flashcard { max-width: 480px; }
}

/* ================================================================
   RESPONSIVE — Tablet (max-width: 768px)
   ================================================================ */
@media (max-width: 768px) {
  .container { width: min(100% - var(--sp-4), 1200px); }
  .navbar-inner { width: min(100% - var(--sp-4), 1200px); padding: var(--sp-2) var(--sp-3); }
  .nav-toggle { display: flex !important; }
  .nav-secondary { display: none; }
  .nav-links { display: none; }
  .bottom-nav { display: flex; }
  body { padding-bottom: 70px; }

  .hero { padding: var(--sp-8) var(--sp-4) var(--sp-10); min-height: 340px; }
  .hero h1 { font-size: clamp(1.8rem, 5vw, 2.8rem); }
  .hero p { font-size: var(--tx-lg); }
  .hero-sun { width: 56px; height: 56px; }
  .hero-hill-1 { height: 80px; }
  .hero-hill-2 { height: 60px; }

  .categories { padding: var(--sp-8) var(--sp-4) var(--sp-10); }
  .path-card-section,
  .home-path-section {
    overflow-x: visible !important;
  }
  .path-card-track,
  .home-path-track {
    display: flex !important;
    gap: 1.25rem;
    columns: initial !important;
    column-gap: 1.25rem !important;
    overflow-x: auto !important;
    overflow-y: visible !important;
    scroll-snap-type: x proximity;
    scroll-padding-inline: 0.75rem;
    -webkit-overflow-scrolling: touch;
    padding: 0.25rem 0.75rem 1rem;
  }
  .path-card-item,
  .home-path-item {
    flex: 0 0 clamp(16rem, 74vw, 19.5rem);
    width: clamp(16rem, 74vw, 19.5rem);
    margin-bottom: 0 !important;
    scroll-snap-align: start;
  }
  .path-card,
  .home-path-card {
    height: 27.5rem;
  }
  .learning-home-header {
    padding: 1rem 0.75rem 0.5rem !important;
  }
  .learning-home-bento {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 0.75rem !important;
  }
  .learning-home-hero-card {
    grid-column: 1 / -1 !important;
    min-height: 0 !important;
    gap: 1rem !important;
    padding: 1.25rem !important;
  }
  .learning-home-hero-card h1 {
    margin: 0.35rem 0 0.5rem !important;
    font-size: clamp(2rem, 10vw, 2.7rem) !important;
  }
  .learning-home-hero-card p {
    margin: 0 !important;
    font-size: 0.95rem !important;
    line-height: 1.35 !important;
  }
  .learning-home-hero-actions {
    gap: 0.65rem !important;
  }
  .learning-home-hero-actions .puffy-btn {
    flex: 1 1 9rem;
    justify-content: center;
    min-width: 0;
    padding: 0.85rem 1rem !important;
  }
  .learning-home-stat {
    min-height: 0 !important;
    padding: 1rem 0.75rem !important;
  }
  .learning-home-stat .clay-inset {
    width: 3rem !important;
    height: 3rem !important;
    margin-bottom: 0 !important;
  }
  .learning-home-stat strong {
    font-size: clamp(1.65rem, 8vw, 2.25rem) !important;
  }
  .learning-home-stat span {
    font-size: 0.58rem !important;
    line-height: 1.15 !important;
  }
  .learning-home-quick-section {
    margin: 1rem auto !important;
    padding-inline: 0.75rem !important;
  }
  .learning-home-quick-section .learning-quick-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
    gap: 0.5rem !important;
  }
  .learning-home-quick-section .clay-quick-card {
    min-height: 0;
    padding: 0.75rem 0.35rem !important;
    gap: 0.45rem !important;
    border-radius: 1rem !important;
  }
  .learning-home-quick-section .clay-quick-icon {
    width: 2.75rem !important;
    height: 2.75rem !important;
    font-size: 1.35rem !important;
    margin: 0 !important;
  }
  .learning-home-quick-section .clay-quick-card span {
    font-size: clamp(0.68rem, 2.8vw, 0.82rem) !important;
    line-height: 1.1;
  }
  .learning-home-topic-section {
    margin: 1.25rem 0.75rem 2rem !important;
    padding: 1.25rem 0.75rem !important;
    border-radius: 1.5rem !important;
  }
  .learning-home-topic-section > div > div:first-child {
    margin-bottom: 0.75rem !important;
  }
  .learning-home-topic-section > div > div:nth-child(2) {
    margin-bottom: 1rem !important;
  }
  .learning-home-topic-section .path-card {
    height: 23rem;
  }
  .learning-home-topic-section .path-card-media {
    aspect-ratio: 16 / 9 !important;
    margin-bottom: 0.9rem !important;
  }
  .learning-home-topic-section [style*="margin-top: 3rem"] {
    margin-top: 1.25rem !important;
  }
  .learning-category-shell {
    padding-inline: 1rem !important;
  }
  .learning-category-page {
    min-height: 0 !important;
    padding-bottom: 2rem !important;
  }
  .learning-category-nav {
    padding-top: 1rem !important;
    margin-bottom: 1.5rem !important;
  }
  .learning-category-hero-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }
  .learning-category-hero {
    margin-bottom: 2rem !important;
  }
  .learning-category-info,
  .learning-category-progress-column {
    grid-column: auto !important;
  }
  .learning-category-title {
    font-size: clamp(2.4rem, 12vw, 4rem) !important;
  }
  .learning-category-progress-card {
    padding: 1.5rem !important;
  }
  .learning-category-info p {
    font-size: 1rem !important;
    line-height: 1.4 !important;
    margin-bottom: 0 !important;
  }
  .learning-category-progress-card > div:first-child {
    align-items: center !important;
    gap: 1rem !important;
    margin-bottom: 1rem !important;
  }
  .learning-category-progress-card [style*="width: 6rem"] {
    width: 4rem !important;
    height: 4rem !important;
  }
  .learning-category-progress-card button {
    display: none !important;
  }
  .learning-lesson-toolbar {
    align-items: flex-start !important;
    flex-direction: column !important;
    gap: 1rem !important;
    margin-bottom: 1.25rem !important;
  }
  .learning-lesson-heading {
    font-size: clamp(1.9rem, 8vw, 2.4rem) !important;
  }
  .learning-lesson-filter {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .learning-lesson-filter button {
    flex: 0 0 auto;
    white-space: nowrap;
  }
  .learning-lesson-grid:not(.path-card-track) {
    columns: initial !important;
    display: grid !important;
    grid-template-columns: 1fr !important;
  }
  .learning-lesson-grid:not(.path-card-track) .learning-lesson-card {
    margin-bottom: 0 !important;
  }
  .learning-lesson-grid.path-card-track .learning-lesson-card {
    height: 25rem;
    gap: 1rem !important;
  }
  .learning-category-footer {
    display: none !important;
  }
  .grammar-mobile-nav {
    position: sticky;
    top: calc(var(--navbar-height) + 0.5rem);
    z-index: 20;
    display: flex;
    gap: 0.5rem;
    max-width: calc(100vw - 1.5rem);
    margin: 0.25rem auto 1.5rem;
    overflow-x: auto;
    padding: 0.5rem;
    border: 1px solid rgba(0, 100, 0, 0.08);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.08);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .grammar-mobile-nav::-webkit-scrollbar {
    display: none;
  }
  .grammar-mobile-nav a {
    flex: 0 0 auto;
    padding: 0.55rem 0.85rem;
    border-radius: 0.75rem;
    background: #FAF7F2;
    color: #006400;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-decoration: none;
    text-transform: uppercase;
  }
  .page-grammar .clay-bento {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
    overflow: visible !important;
  }
  .page-grammar .clay-bento > * {
    grid-column: auto !important;
    width: 100%;
    min-width: 0;
  }
  .page-grammar .clay-bento-hero {
    min-height: auto !important;
  }
  .page-grammar .clay-bento > .clay-card {
    padding: 1.35rem !important;
  }
  .page-grammar .clay-bento > .clay-card[style*="display: flex"] {
    min-height: 0 !important;
  }
  .page-grammar .clay-bento [style*="position: absolute"] {
    display: none !important;
  }
  .grammar-study-section {
    scroll-margin-top: calc(var(--navbar-height) + 5rem);
    box-sizing: border-box;
    max-width: 100% !important;
    min-width: 0;
    width: 100% !important;
  }
  .grammar-panel-section,
  .grammar-study-cta {
    margin-inline: 1rem !important;
    padding: 2rem 1rem !important;
    border-radius: 1.5rem !important;
  }
  .grammar-swipe-row {
    display: flex !important;
    grid-template-columns: none !important;
    gap: 1rem !important;
    box-sizing: border-box;
    max-width: 100%;
    width: 100%;
    margin-inline: -1rem;
    overflow-x: auto;
    overflow-y: visible;
    padding: 0.25rem 1rem 1rem;
    scroll-padding-inline: 1rem;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 100, 0, 0.35) transparent;
  }
  .grammar-swipe-row > * {
    flex: 0 0 clamp(15.75rem, 78vw, 20rem);
    scroll-snap-align: start;
  }
  .grammar-vowel-row > * {
    flex-basis: clamp(11.5rem, 46vw, 13rem);
  }
  .grammar-tip-row > * {
    flex-basis: clamp(17rem, 82vw, 21rem);
  }
  .grammar-swipe-row .clay-card {
    height: 100%;
  }
  .grammar-family-row .clay-card,
  .grammar-prefix-row .clay-card,
  .grammar-build-row .clay-card {
    min-height: 15rem;
  }
  .grammar-guide-layout h2 {
    text-align: left !important;
  }
  .grammar-guide-layout section > p,
  .grammar-guide-layout section > div:first-child p {
    text-align: left !important;
  }
  .contact-page [style*="position: absolute"],
  .conversation-list-hero [style*="position: absolute"],
  .learning-list-hero [style*="position: absolute"],
  .learning-category-page [style*="position: absolute"] {
    display: none !important;
  }
  .learning-list-hero {
    padding: 2rem 1rem !important;
    margin-bottom: 2rem !important;
  }
  .learning-list-hero-grid {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }
  .learning-list-hero-media > div {
    position: relative;
    padding: 1rem !important;
  }
  .learning-topic-search-panel {
    margin-bottom: 1.25rem !important;
    padding-inline: 1rem !important;
  }
  .learning-topic-search-panel form {
    margin-bottom: 1rem !important;
  }
  .learning-topic-search-panel #learning-search-help {
    margin-top: 0.5rem !important;
  }
  .learning-topic-tag-row {
    flex-wrap: nowrap !important;
    justify-content: flex-start !important;
    gap: 0.6rem !important;
    margin: 0 -0.25rem 1.25rem !important;
    overflow-x: auto;
    padding: 0.25rem 0.25rem 0.75rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .learning-topic-tag-row::-webkit-scrollbar {
    display: none;
  }
  .learning-topic-tag-row button {
    flex: 0 0 auto;
    padding: 0.65rem 1rem !important;
    font-size: 0.78rem !important;
  }
  .learning-search-wrap,
  .clay-search-wrap {
    display: grid !important;
    grid-template-columns: auto minmax(0, 1fr) !important;
    gap: 0.75rem !important;
    padding: 1rem !important;
  }
  .learning-search-wrap input,
  .clay-search-wrap input {
    min-width: 0;
    width: 100%;
  }
  .learning-search-wrap button,
  .clay-search-wrap button {
    grid-column: 1 / -1;
    width: 100%;
    min-width: 0 !important;
    justify-content: center;
  }
  .learning-topic-section {
    margin-inline: 1rem !important;
    padding: 1.5rem !important;
    border-radius: 1.5rem !important;
  }
  .learning-topic-section > div > div:first-child {
    margin-bottom: 1.25rem !important;
  }
  .learning-topic-section .path-card {
    height: 23.5rem;
  }
  .learning-topic-section .path-card-media {
    aspect-ratio: 16 / 9 !important;
    margin-bottom: 1rem !important;
  }
  .learning-topic-actions {
    margin-top: 1.25rem !important;
  }
  .learning-topic-grid:not(.path-card-track),
  .conversation-card-grid:not(.path-card-track) {
    columns: initial !important;
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }
  .learning-topic-grid:not(.path-card-track) .clay-masonry-item,
  .conversation-card-grid:not(.path-card-track) .clay-masonry-item {
    margin-bottom: 0 !important;
  }
  .conversation-card-grid.path-card-track,
  .learning-conversation-grid.path-card-track,
  .learning-vocab-grid.path-card-track {
    margin-inline: -0.75rem;
  }
  .conversation-list-card.path-card {
    height: 32rem;
  }
  .conversation-list-hero {
    padding: 1.5rem 1rem 0.75rem !important;
  }
  .conversation-list-hero h1 {
    font-size: clamp(2rem, 10vw, 3rem) !important;
  }
  .conversation-list-hero p {
    margin-bottom: 1rem !important;
    font-size: 0.95rem !important;
    line-height: 1.4 !important;
  }
  .conversation-summary-card {
    padding: 1rem !important;
    margin-bottom: 1rem !important;
  }
  .conversation-filter-row {
    flex-wrap: nowrap !important;
    justify-content: flex-start !important;
    gap: 0.5rem !important;
    margin-bottom: 0.75rem !important;
    overflow-x: auto;
    padding-bottom: 0.4rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .conversation-filter-row::-webkit-scrollbar {
    display: none;
  }
  .conversation-filter-row .clay-chip {
    flex: 0 0 auto;
    padding: 0.6rem 0.85rem;
    font-size: 0.75rem;
  }
  .conversation-card-grid.path-card-track {
    margin-top: 1rem !important;
  }
  .conversation-list-card.path-card > div:first-child {
    padding: 1.25rem 1.25rem 0.75rem !important;
  }
  .conversation-list-card.path-card > div:nth-child(2) {
    padding: 0 1.25rem 1rem !important;
    gap: 0.6rem !important;
  }
  .conversation-list-card.path-card .path-card-progress {
    padding: 0.5rem 1.25rem 1.25rem !important;
  }
  .conversation-focus-header {
    padding: 1rem 0.75rem 0.5rem !important;
  }
  .conversation-focus-nav {
    gap: 0.5rem !important;
    margin-bottom: 0.75rem !important;
  }
  .conversation-focus-nav .puffy-btn {
    flex: 1 1 8rem;
    justify-content: center;
  }
  .conversation-focus-hero {
    padding: 1.25rem !important;
  }
  .conversation-focus-hero h1 {
    font-size: clamp(1.8rem, 9vw, 2.6rem) !important;
  }
  .conversation-focus-hero p:last-child {
    font-size: 0.98rem !important;
    line-height: 1.4 !important;
  }
  .conversation-focus-lines {
    gap: 0.85rem !important;
    padding: 1rem !important;
  }
  .conversation-focus-line {
    max-width: 96% !important;
    padding: 1rem !important;
  }
  .conversation-focus-line .conversation-shona {
    font-size: clamp(1.15rem, 5vw, 1.5rem) !important;
  }
  .conversation-focus-actions {
    margin-top: 1rem !important;
    padding: 1rem !important;
  }
  .learning-conversation-grid.path-card-track .path-card-item,
  .learning-vocab-grid.path-card-track .path-card-item {
    flex: 0 0 clamp(16rem, 78vw, 19.5rem);
    width: clamp(16rem, 78vw, 19.5rem);
  }
  .learning-conversation-grid.path-card-track .conversation-card,
  .learning-vocab-grid.path-card-track .vocab-mini-card {
    height: 100%;
    scroll-snap-align: start;
  }
  .lesson-header {
    padding: 1.25rem 1rem !important;
  }
  .lesson-header-inner > a {
    width: 2.5rem !important;
    height: 2.5rem !important;
    margin-bottom: 0.75rem !important;
  }
  .lesson-heading h1 {
    font-size: clamp(1.7rem, 8vw, 2.35rem) !important;
    margin-bottom: 0.5rem !important;
  }
  .lesson-heading p {
    font-size: 0.95rem !important;
    line-height: 1.35 !important;
    margin-bottom: 1rem !important;
  }
  .lesson-header .speak-btn {
    width: 100%;
    justify-content: center;
    padding: 0.85rem 1rem !important;
    font-size: 0.95rem !important;
  }
  .lesson-mission-card {
    padding: 1.25rem !important;
    margin-bottom: 1.5rem !important;
  }
  .lesson-mission-card > p:last-of-type {
    font-size: 1rem !important;
    line-height: 1.35 !important;
  }
  .lesson-practice-block {
    margin-bottom: 2rem !important;
  }
  .lesson-section-heading {
    margin-bottom: 1rem !important;
  }
  .lesson-section-heading > div:first-child {
    width: 2.5rem !important;
    height: 2.5rem !important;
    border-radius: 1rem !important;
    font-size: 1.35rem !important;
  }
  .lesson-section-heading h2 {
    font-size: 1.45rem !important;
  }
  .lesson-bottom-actions {
    flex-direction: row !important;
    flex-wrap: wrap;
    gap: 0.75rem !important;
    margin-bottom: 1.5rem !important;
  }
  .lesson-bottom-actions .puffy-btn {
    flex: 1 1 10rem;
    max-width: none !important;
    padding: 1rem !important;
    font-size: 0.95rem !important;
  }
  .lesson-bottom-actions .auto-speak-toggle {
    flex: 1 1 100%;
    padding: 0.6rem 1rem !important;
  }
  .vocab-cards-shell {
    padding-inline: 1rem !important;
  }
  .vocab-cards-page {
    min-height: 0 !important;
    padding-bottom: 2rem !important;
  }
  .vocab-cards-header {
    align-items: stretch !important;
    flex-direction: column !important;
    gap: 1.25rem !important;
    margin-bottom: 1.25rem !important;
    padding-top: 1rem !important;
  }
  .vocab-cards-header > div:first-child {
    align-items: flex-start !important;
  }
  .vocab-cards-header h1 {
    font-size: clamp(1.6rem, 8vw, 2.1rem) !important;
    line-height: 1.1 !important;
  }
  .vocab-cards-tools {
    align-items: stretch !important;
    flex-direction: column !important;
    gap: 1rem !important;
  }
  .vocab-cards-tools > div:nth-child(2) {
    display: none !important;
  }
  .vocab-cards-tools > div:first-child {
    text-align: left !important;
  }
  .vocab-cards-tools > div:last-child {
    justify-content: space-between;
  }
  .vocab-carousel-item {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }
  .vocab-carousel-item > div {
    grid-column: auto !important;
  }
  .vocab-cards-page [style*="padding: 2.5rem"] {
    padding: 1rem !important;
  }
  .vocab-cards-page [style*="border-radius: 3.5rem"],
  .vocab-cards-page [style*="border-radius: 3rem"],
  .vocab-cards-page [style*="border-radius: 2.5rem"] {
    border-radius: 1.5rem !important;
  }
  .vocab-cards-page [style*="font-size: 6rem"] {
    font-size: clamp(2.25rem, 14vw, 3.5rem) !important;
  }
  .vocab-cards-page [style*="font-size: 8rem"] {
    font-size: 4rem !important;
  }
  .vocab-cards-page [style*="display: flex; gap: 1.5rem"] {
    flex-direction: column !important;
  }
  .vocab-cards-page [style*="margin-bottom: 2.5rem"] {
    margin-bottom: 1rem !important;
  }
  .vocab-cards-page [style*="margin: 2.5rem 0"] {
    margin: 1rem 0 !important;
  }
  .vocab-cards-page [style*="gap: 2.5rem"] {
    gap: 1rem !important;
  }
  .vocab-cards-footer {
    display: none !important;
  }
  .quiz-layout {
    width: min(100% - 2rem, 760px) !important;
  }
  .quiz-section {
    padding-top: 1.25rem !important;
  }
  .quiz-page-header {
    margin-bottom: 1.25rem !important;
  }
  .quiz-page-header > div:first-child {
    align-items: stretch !important;
  }
  .quiz-page-header h1 {
    font-size: clamp(1.55rem, 7vw, 2.1rem) !important;
  }
  .quiz-progress-pill {
    width: 100%;
    justify-content: space-between;
    padding: 0.65rem 1rem !important;
  }
  .quiz-question-card {
    padding: 1.5rem !important;
    width: 100%;
  }
  .quiz-question-card [style*="position: absolute"] {
    display: none !important;
  }
  .quiz-question-card legend {
    margin-bottom: 1.25rem !important;
    font-size: clamp(1.25rem, 6vw, 1.75rem) !important;
  }
  .clay-choices-grid {
    grid-template-columns: 1fr !important;
  }
  .clay-choice {
    min-height: 0 !important;
    padding: 1rem !important;
  }
  .clay-choice-emoji {
    font-size: 2rem !important;
  }
  .quiz-nav-actions {
    margin-top: 1rem !important;
  }
  .quiz-nav-actions .puffy-btn {
    flex: 1 1 9rem;
    justify-content: center;
    padding: 0.85rem 1rem !important;
  }
  .quiz-result-header {
    gap: 1rem !important;
    margin-bottom: 1.25rem !important;
  }
  .quiz-result-header > a {
    width: 3rem !important;
    height: 3rem !important;
  }
  .quiz-celebration-banner {
    margin-bottom: 1.25rem !important;
  }
  .quiz-celebration-banner #score-card {
    gap: 0.75rem !important;
    padding: 1.25rem !important;
  }
  .quiz-celebration-banner #score-card > span:first-child,
  .quiz-celebration-banner #score-card > span:nth-child(3) {
    font-size: 2.25rem !important;
  }
  .quiz-score-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
    margin-bottom: 1.5rem !important;
  }
  .quiz-score-grid .clay-card,
  .quiz-score-grid .clay-card-red,
  .quiz-score-grid .clay-card-gold {
    padding: 1.25rem !important;
  }
  .quiz-review-heading {
    margin-bottom: 1rem !important;
    padding-top: 0.5rem !important;
    padding-bottom: 0.5rem !important;
  }
  .quiz-answer-review-list {
    gap: 1rem !important;
    margin-bottom: 1.5rem !important;
  }
  .quiz-answer-review-list .clay-answer-card {
    padding: 1.25rem !important;
    gap: 1rem !important;
  }
  .quiz-result-actions {
    gap: 0.75rem !important;
    margin-top: 1.25rem !important;
    padding-top: 1rem !important;
  }
  .quiz-result-actions .puffy-btn {
    flex: 1 1 10rem;
    min-width: 0 !important;
    padding: 1rem !important;
    font-size: 0.95rem !important;
  }
  .static-page {
    padding-bottom: calc(5rem + var(--navbar-height)) !important;
  }
  .static-page-shell {
    padding-inline: 1.25rem !important;
    max-width: 44rem !important;
  }
  .static-page-hero {
    padding-top: 2.5rem !important;
    margin-bottom: 2.75rem !important;
  }
  .static-page-title {
    font-size: clamp(2.25rem, 9vw, 3.5rem) !important;
    letter-spacing: 0 !important;
  }
  .static-page-grid,
  .static-cookie-grid,
  .static-policy-grid,
  .static-page-bento {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
    margin-bottom: 3rem !important;
  }
  .static-page [style*="grid-column: span"] {
    grid-column: auto !important;
  }
  .static-card-grid,
  .static-two-column {
    columns: initial !important;
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }
  .static-card-grid > *,
  .static-page .clay-masonry-item {
    margin-bottom: 0 !important;
  }
  .static-page .clay-card {
    border-radius: 1.5rem !important;
  }
  .static-page .clay-card[style*="padding: 3rem"],
  .static-page .clay-card[style*="padding: 2.5rem"],
  .static-page .clay-card[style*="padding: 2rem"] {
    padding: 1.5rem !important;
  }
  .static-split {
    gap: 2rem !important;
    margin-bottom: 3.5rem !important;
  }
  .static-page-section {
    margin-bottom: 3.5rem !important;
  }
  .static-page-cta .clay-card {
    padding: 2rem 1.5rem !important;
  }
  .static-page a.puffy-btn,
  .static-page button.puffy-btn {
    max-width: 100%;
    justify-content: center;
    text-align: center;
    white-space: normal;
  }
  .card-grid { grid-template-columns: repeat(2, 1fr); gap: var(--sp-3); }
  .card { min-height: 180px; padding: var(--sp-5) var(--sp-3) var(--sp-4); border-radius: var(--r-lg); }
  .card h3 { font-size: var(--tx-lg); }
  .card-icon { width: 56px; height: 56px; font-size: 2rem; margin-bottom: var(--sp-2); }
  .card p { font-size: var(--tx-xs); }
  .card-meta { font-size: 0.7rem; padding: var(--sp-1) var(--sp-2); }

  .continue-card-inner { padding: var(--sp-5); gap: var(--sp-4); }
  .continue-card-visual { width: 64px; height: 64px; font-size: 2rem; }
  .continue-card-body h3 { font-size: var(--tx-lg); }
  .ask-cta,
  .ask-hero-inner,
  .ask-form-inner { grid-template-columns: 1fr; }
  .ask-hero-inner {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }
  .ask-hero-copy,
  .ask-hero-tips {
    order: initial !important;
  }
  .ask-hero-tips > div {
    position: relative;
    padding: 1rem !important;
  }
  .ask-hero-tips [style*="position: absolute"] {
    display: none !important;
  }
  .ask-page { padding: var(--sp-6) var(--sp-4) var(--sp-10); }
  .ask-shell,
  .ask-form,
  .ask-card,
  .ask-empty-state { padding: var(--sp-5); }
  .ask-shell {
    padding: 1.25rem 0.75rem 2rem !important;
  }
  .ask-form {
    margin-bottom: 1rem !important;
  }
  .ask-prompt-card {
    padding: 1.25rem !important;
  }
  .ask-prompt-card .clay-kicker {
    margin-bottom: 0.65rem !important;
  }
  .ask-prompt-card h1 {
    font-size: clamp(1.65rem, 8vw, 2.2rem) !important;
    margin-bottom: 0.5rem !important;
  }
  .ask-prompt-card p {
    margin-bottom: 1rem !important;
    line-height: 1.4 !important;
  }
  .ask-form-inner {
    gap: 0.75rem !important;
  }
  .ask-form-inner input {
    min-width: 0 !important;
    width: 100%;
  }
  .ask-form-inner .puffy-btn {
    width: 100%;
    justify-content: center;
  }
  .ask-form-meta {
    margin-top: 0.75rem !important;
  }
  .ask-submit,
  .ask-cta-form .sec-link { width: 100%; }
  .ask-cta-form { grid-template-columns: 1fr; }

  .section { padding: var(--sp-6) var(--sp-4); }
  .exp-form { padding: var(--sp-5); }

  .lesson-header, .lesson-header-inner { flex-direction: column; align-items: flex-start; gap: var(--sp-2); }
  .lesson-container { padding: var(--sp-6) var(--sp-4); }
  .flashcard { max-width: 100%; min-height: 320px; }
  .flashcard-inner { min-height: 320px; transform: translateZ(0); }
  .flashcard-front, .flashcard-back { padding: var(--sp-8) var(--sp-5); }
  .flashcard h2 { font-size: clamp(2rem, 9vw, 3rem); }
  .flashcard p { font-size: clamp(1.3rem, 5vw, 1.7rem); }
  .controls { gap: var(--sp-3); max-width: 100%; }
  .controls .nav-btn, .controls .play-btn, .controls .auto-speak-toggle { min-height: 48px; padding: var(--sp-3) var(--sp-4); font-size: var(--tx-sm); }
  .key-hint { display: none; }
  .lesson-container .shape-1, .lesson-container .shape-2, .lesson-container .shape-3 { display: none; }

  .gram-grid { grid-template-columns: 1fr; }
  .gram-build-grid { grid-template-columns: repeat(2, 1fr); }
  .gram-tbl { min-width: 500px; }

  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .mgmt-act { flex-direction: column; }
  .mgmt-act .sec-link { width: 100%; }
  .d-card-act { flex-direction: column; }
  .d-card-act .sec-link { width: 100%; }
}

/* ================================================================
   RESPONSIVE — Small Phone (max-width: 480px)
   ================================================================ */
@media (max-width: 480px) {
  :root { --navbar-height: 40px; }
  .container { width: min(100% - var(--sp-3), 1200px); }
  .exp-stats-row { grid-template-columns: 1fr 1fr; }
  .exp-stats-row .exp-stat-card:last-child { grid-column: span 2; }
  .ask-cat-grid { grid-template-columns: 1fr; }
  .lesson-complete-panel { padding: var(--sp-8) var(--sp-5); }
  .navbar-inner { width: min(100% - var(--sp-3), 1200px); }
  .nav-brand-icon { font-size: 1.3rem; }
  .nav-brand-text { font-size: var(--tx-sm); }

  .hero { padding: var(--sp-6) var(--sp-3) var(--sp-8); min-height: 300px; }
  .hero h1 { font-size: clamp(1.6rem, 7vw, 2.2rem); }
  .hero p { font-size: var(--tx-ba); }
  .hero-sun { width: 44px; height: 44px; top: 6%; right: 8%; }
  .hero-cloud-1 { width: 60px; height: 18px; top: 10%; }
  .hero-cloud-1::before { width: 28px; height: 28px; top: -12px; }
  .hero-cloud-1::after { width: 22px; height: 22px; top: -8px; }
  .hero-hill-1 { height: 60px; }
  .hero-hill-2 { height: 45px; }
  .hero-hut { width: 34px; height: 22px; bottom: 38px; }
  .hero-hut::before { top: -16px; left: -3px; border-left: 20px solid transparent; border-right: 20px solid transparent; border-bottom: 20px solid #8D6E63; }
  .hero-tree { height: 20px; }
  .hero-tree::before { width: 22px; height: 22px; top: -14px; left: -8px; }

  .categories { padding: var(--sp-6) var(--sp-3) var(--sp-8); }
  .categories h2 { font-size: clamp(1.4rem, 5vw, 1.8rem); margin-bottom: var(--sp-5); }
  .path-card-track,
  .home-path-track {
    gap: 1.25rem;
    margin-inline: -0.5rem;
    padding-inline: 0.75rem;
    scroll-padding-inline: 0.75rem;
  }
  .path-card-item,
  .home-path-item {
    flex-basis: clamp(16rem, 72vw, 18.5rem);
    width: clamp(16rem, 72vw, 18.5rem);
  }
  .path-card,
  .home-path-card {
    height: 26.75rem;
  }
  .path-card-title,
  .home-path-title {
    min-height: 4.1rem;
  }
  .path-card-description,
  .home-path-description {
    min-height: 2.75rem;
  }
  .learning-category-shell {
    padding-inline: 1.25rem !important;
  }
  .learning-category-back {
    max-width: 100%;
    white-space: normal !important;
  }
  .learning-category-back span {
    letter-spacing: 0.04em !important;
    line-height: 1.35;
  }
  .learning-category-badge {
    max-width: 100%;
    letter-spacing: 0.08em !important;
    white-space: normal;
  }
  .learning-category-title {
    font-size: clamp(2rem, 11vw, 3.2rem) !important;
  }
  .learning-category-progress-card {
    padding: 1.25rem !important;
  }
  .learning-category-progress-card > div:nth-child(2) {
    gap: 1rem !important;
  }
  .learning-category-progress-card h3 {
    font-size: 1.45rem !important;
  }
  .learning-lesson-filter {
    border-radius: 1.25rem !important;
    width: 100%;
  }
  .learning-lesson-filter button {
    padding-inline: 1rem !important;
  }
  .learning-lesson-card {
    padding: 1.5rem !important;
    border-left-width: 8px !important;
  }
  .learning-lesson-card h3 {
    font-size: 1.55rem !important;
  }
  .learning-lesson-card p {
    font-size: 1rem !important;
  }
  .static-page {
    padding-inline: 0 !important;
  }
  .static-page-shell {
    padding-inline: 1rem !important;
  }
  .static-page-hero {
    padding-top: 2rem !important;
    margin-bottom: 2rem !important;
  }
  .static-page-title {
    font-size: clamp(2rem, 11vw, 2.85rem) !important;
    line-height: 1.05 !important;
  }
  .static-page-hero p {
    font-size: 1rem !important;
    line-height: 1.55 !important;
  }
  .static-page-grid,
  .static-card-grid {
    gap: 1rem !important;
  }
  .static-page .clay-card[style*="padding"] {
    padding: 1.25rem !important;
  }
  .static-page h2 {
    font-size: clamp(1.45rem, 7vw, 2rem) !important;
    line-height: 1.15 !important;
  }
  .static-page h3 {
    font-size: clamp(1.15rem, 6vw, 1.55rem) !important;
  }
  .static-page p {
    font-size: 0.98rem !important;
  }
  .static-page [style*="width: 18rem"] {
    width: min(14rem, 72vw) !important;
    height: min(14rem, 72vw) !important;
  }
  .static-page [style*="width: 8rem"] {
    width: 6rem !important;
    height: 6rem !important;
  }
  .static-page [style*="font-size: 8rem"] {
    font-size: 5rem !important;
  }
  .static-page [style*="font-size: 6rem"] {
    font-size: 4rem !important;
  }
  .static-page [style*="display: flex; justify-content: center; align-items: center; gap: 3rem"] {
    gap: 1rem !important;
    flex-wrap: wrap;
  }
  .static-page [style*="display: flex; justify-content: center; align-items: center; gap: 1.5rem"] {
    gap: 0.75rem !important;
  }
  .static-page [style*="width: 6rem; height: 1px"] {
    width: 3rem !important;
  }
  .static-page [style*="position: absolute"] {
    display: none !important;
  }
  .static-page [style*="display: flex; align-items: center; justify-content: space-between"] {
    align-items: stretch !important;
    flex-direction: column !important;
  }
  .static-page [style*="display: flex; flex-wrap: wrap; justify-content: center"] {
    gap: 1rem !important;
  }
  .static-page a.puffy-btn {
    width: 100%;
    min-width: 0 !important;
    padding: 1rem 1.25rem !important;
  }
  .learning-list-hero {
    padding-inline: 0.75rem !important;
  }
  .learning-list-hero .container {
    width: 100%;
  }
  .learning-search-wrap,
  .clay-search-wrap {
    border-radius: 1.25rem !important;
  }
  .learning-topic-section {
    margin-inline: 0.75rem !important;
    padding: 1.25rem !important;
  }
  .conversation-list-hero {
    padding-inline: 1rem !important;
  }
  .vocab-cards-shell {
    padding-inline: 0.75rem !important;
  }
  .vocab-cards-header > div:first-child {
    gap: 1rem !important;
  }
  .vocab-cards-header .puffy-btn {
    flex: 0 0 auto;
  }
  .vocab-cards-tools > div:last-child {
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.65);
    padding: 0.75rem;
  }
  .vocab-cards-page main {
    max-width: 100% !important;
  }
  .vocab-cards-page [style*="padding: 0.75rem; background: repeating-linear-gradient"] {
    padding: 0.45rem !important;
  }
  .vocab-cards-page [style*="margin: 2.5rem 0"] {
    margin: 1.25rem 0 !important;
  }
  .vocab-cards-page [style*="font-size: 2.25rem"] {
    font-size: 1.65rem !important;
  }
  .vocab-cards-page footer [style*="letter-spacing: 0.2em"],
  .vocab-cards-page footer [style*="letter-spacing: 0.4em"] {
    letter-spacing: 0.08em !important;
  }
  .learning-quick-grid {
    grid-template-columns: 1fr !important;
  }
  .quiz-layout {
    width: min(100% - 1.5rem, 760px) !important;
  }
  .quiz-question-card {
    padding: 1.25rem !important;
  }
  .quiz-question-card legend {
    font-size: clamp(1.25rem, 7vw, 1.75rem) !important;
  }
  .grammar-mobile-nav {
    max-width: calc(100vw - 1rem);
    margin-bottom: 1rem;
  }
  .grammar-study-section {
    margin-block: 2rem !important;
  }
  .grammar-study-section > h2,
  .grammar-study-section > div > h2 {
    font-size: clamp(1.45rem, 7vw, 2rem) !important;
  }
  .grammar-study-section > p,
  .grammar-study-section > div > p {
    margin-bottom: 1.25rem !important;
  }
  .grammar-swipe-row {
    margin-inline: -0.75rem;
    padding-inline: 0.75rem;
    scroll-padding-inline: 0.75rem;
  }
  .grammar-swipe-row > * {
    flex-basis: clamp(15rem, 82vw, 18.5rem);
  }
  .grammar-vowel-row > * {
    flex-basis: clamp(10.5rem, 54vw, 12.5rem);
  }
  .grammar-study-cta .puffy-btn {
    width: 100%;
    justify-content: center;
  }
  .card-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-2); }
  .card { min-height: 140px; padding: var(--sp-4) var(--sp-2) var(--sp-3); border-radius: var(--r-md); border-width: 1px; }
  .card h3 { font-size: var(--tx-sm); }
  .card-icon { width: 48px; height: 48px; font-size: 1.75rem; margin-bottom: var(--sp-1); border-radius: var(--r-lg); }
  .card p { display: none; }
  .card-meta { font-size: 0.65rem; padding: var(--sp-1) var(--sp-2); margin-top: var(--sp-2); background: transparent; }

  .continue-card-inner { flex-direction: column; text-align: center; padding: var(--sp-4); gap: var(--sp-3); }
  .continue-card-visual { width: 56px; height: 56px; font-size: 1.75rem; }
  .continue-card-body h3 { font-size: var(--tx-lg); }
  .continue-progress-wrap { justify-content: center; }
  .continue-btn { width: 100%; justify-content: center; }
  .ask-cta,
  .ask-shell,
  .ask-form,
  .ask-card,
  .ask-empty-state { padding: var(--sp-4); border-radius: var(--r-lg); }
  .ask-hero { padding: var(--sp-7) 0 var(--sp-6); }
  .ask-hero-copy h1 { font-size: clamp(1.7rem, 9vw, 2.2rem); }
  .ask-hero-copy p { font-size: var(--tx-ba); }
  .ask-answer-main { font-size: clamp(1.45rem, 8vw, 2rem); }
  .ask-answer-meaning,
  .ask-card-question { font-size: var(--tx-ba); }
  .ask-grounding-list { grid-template-columns: 1fr; }

  .hlr { gap: var(--sp-2); }
  .hlr .sec-link { width: 100%; }

  .section { padding: var(--sp-5) var(--sp-3); }
  .exp-form { padding: var(--sp-4); border-radius: var(--r-lg); }
  .f-row { margin-bottom: var(--sp-3); }
  .f-row input, .f-row select { padding: var(--sp-3); }
  .exp-results-head { align-items: flex-start; flex-direction: column; }
  .w-res { grid-template-columns: 1fr; }
  .d-card { padding: var(--sp-4); border-radius: var(--r-lg); }
  .d-card-act { flex-direction: column; }
  .d-card-act .sec-link { width: 100%; }
  .exp-pagination { justify-content: stretch; }
  .exp-pagination .sec-link { width: 100%; }

  .lesson-header { padding: var(--sp-3) var(--sp-3); }
  .lesson-header h1 { font-size: var(--tx-lg); }
  .lesson-heading p { font-size: var(--tx-xs); }
  .lesson-container { padding: var(--sp-4) var(--sp-3); min-height: auto; }
  .flashcard { min-height: 260px; border-radius: var(--r-lg); }
  .flashcard-inner { min-height: 260px; transform: translateZ(0); }
  .flashcard-front, .flashcard-back { padding: var(--sp-6) var(--sp-4); }
  .flashcard h2 { font-size: clamp(1.7rem, 11vw, 2.4rem); }
  .flashcard p { font-size: clamp(1.2rem, 5vw, 1.5rem); }
  .flashcard img { max-height: 160px; min-height: 80px; border-width: 3px; }
  .card-counter { font-size: var(--tx-xs); padding: var(--sp-1) var(--sp-3); top: var(--sp-2); right: var(--sp-2); }
  .controls { flex-direction: row; gap: var(--sp-2); }
  .controls .nav-btn, .controls .play-btn, .controls .auto-speak-toggle { min-height: 44px; padding: var(--sp-2) var(--sp-3); font-size: var(--tx-xs); flex: 1; min-width: 0; }
  .play-btn, .auto-speak-toggle { min-width: auto; }
  .progress-dots { gap: var(--sp-1); margin-top: var(--sp-4); }
  .progress-dot { width: 8px; height: 8px; }

  .gram-build-grid { grid-template-columns: 1fr; }
  .gram-tbl th, .gram-tbl td { padding: var(--sp-2) var(--sp-3); font-size: var(--tx-sm); }
  .gram-tbl { min-width: 400px; }

  .stats-row { grid-template-columns: 1fr; }
  .stat-card { padding: var(--sp-4); }
  .stat-num { font-size: var(--tx-2x); }
  .mgmt-panel { padding: var(--sp-4); border-radius: var(--r-lg); }

  .footer { padding: var(--sp-6) var(--sp-3); }
  .footer-links { gap: var(--sp-3); }
}

/* ================================================================
   TOUCH DEVICE — Remove sticky hover effects
   ================================================================ */
@media (hover: none) and (pointer: coarse) {
  .card:hover, .card:focus-visible,
  .d-card:hover, .d-card:focus-visible,
  .stat-card:hover,
  .gram-build:hover,
  .nav-btn:hover, .play-btn:hover, .sec-link:hover,
  .topic-card:hover, .lesson-tile:hover,
  .continue-btn:hover,
  .ask-grounding-chip:hover,
  .footer-links a:hover {
    transform: none;
    box-shadow: var(--sh-sm);
  }
  .card:hover::before { opacity: 0; }
  .card:hover .card-icon { transform: none; }
  .nav-btn:hover::before, .play-btn:hover::before, .sec-link:hover::before { left: -100%; }
}

/* ================================================================
   RESPONSIVE — Landscape Phone
   ================================================================ */
@media (max-height: 500px) and (orientation: landscape) {
  .hero { padding: var(--sp-5) var(--sp-4) var(--sp-6); min-height: 200px; }
  .hero h1 { font-size: clamp(1.4rem, 5vw, 2rem); }
  .hero p { font-size: var(--tx-sm); }
  .hero-sun, .hero-cloud, .hero-hut, .hero-tree, .hero-bird { display: none; }
  .hero-hill-1 { height: 40px; }
  .hero-hill-2 { height: 30px; }

  .lesson-container { padding: var(--sp-4) var(--sp-3); min-height: auto; }
  .flashcard { min-height: 200px; }
  .flashcard-inner { min-height: 200px; }
  .flashcard-front, .flashcard-back { padding: var(--sp-4); gap: var(--sp-2); }
  .flashcard h2 { font-size: clamp(1.4rem, 8vw, 2rem); }
  .flashcard p { font-size: clamp(1rem, 4vw, 1.3rem); }
  .flashcard img { max-height: 100px; min-height: 60px; border-width: 2px; }
  .controls { gap: var(--sp-2); }
  .controls .nav-btn, .controls .play-btn, .controls .auto-speak-toggle { min-height: 40px; padding: var(--sp-2); font-size: var(--tx-xs); }
}

/* ================================================================
   SKELETON LOADERS
   ================================================================ */
.skeleton {
  background: linear-gradient(90deg, var(--n-200) 25%, var(--n-100) 50%, var(--n-200) 75%);
  background-size: 200% 100%;
  border-radius: var(--r-md);
  animation: skeletonShimmer 1.5s infinite;
}
@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
[data-theme="dark"] .skeleton {
  background: linear-gradient(90deg, var(--n-700) 25%, var(--n-600) 50%, var(--n-700) 75%);
  background-size: 200% 100%;
}
.ask-skeleton {
  display: grid;
  gap: var(--sp-4);
  padding: var(--sp-6);
}
.ask-skeleton-line { height: 16px; }
.ask-skeleton-line.short { width: 60%; }
.ask-skeleton-line.medium { width: 80%; }
.ask-skeleton-block { height: 80px; border-radius: var(--r-lg); }

/* ================================================================
   TINT SYSTEM — Category-tinted card interiors
   ================================================================ */

:root {
  --tint-coral: #E85D4E;
  --tint-mint:  #3DAB7A;
  --tint-sky:   #4A90D9;
  --tint-rose:  #C75B9A;
  --tint-amber: #D4943A;
  --tint-slate: #6B7B8D;
}

/* Warm gradient interiors for all cards */
.card,
.d-card,
.stat-card,
.continue-card {
  background: linear-gradient(145deg, #FFFFFF 0%, #FFFDF7 100%);
}

[data-theme="dark"] .card,
[data-theme="dark"] .d-card,
[data-theme="dark"] .stat-card,
[data-theme="dark"] .continue-card {
  background: linear-gradient(145deg, #2A2720 0%, #1E1C18 100%);
}

/* Tint accent classes */
.tint-coral { --tint: var(--tint-coral); --tint-bg: #FFEAE8; --tint-border: #FECACA; --tint-text: #B91C1C; }
.tint-mint  { --tint: var(--tint-mint);  --tint-bg: #E8F5E9; --tint-border: #BBF7D0; --tint-text: #15803D; }
.tint-sky   { --tint: var(--tint-sky);   --tint-bg: #E3F2FD; --tint-border: #BBDEFB; --tint-text: #1565C0; }
.tint-rose  { --tint: var(--tint-rose);  --tint-bg: #FCE4EC; --tint-border: #F8BBD0; --tint-text: #AD1457; }
.tint-amber { --tint: var(--tint-amber); --tint-bg: #FFF3E0; --tint-border: #FFE0B2; --tint-text: #E65100; }
.tint-slate { --tint: var(--tint-slate); --tint-bg: #ECEFF1; --tint-border: #CFD8DC; --tint-text: #37474F; }

/* Accent top border on tinted cards */
.card[class*="tint-"],
.d-card[class*="tint-"],
.topic-card[class*="tint-"],
.lesson-tile[class*="tint-"],
.vocab-mini-card[class*="tint-"],
.quiz-question[class*="tint-"],
.big-vocab-card[class*="tint-"],
.conversation-card[class*="tint-"],
.learning-panel[class*="tint-"],
.score-card[class*="tint-"] {
  border-top: 3px solid var(--tint);
}

/* Tinted tags / pills */
.tag-coral, .tint-coral .meta-row span { background: #FFEAE8; color: #B91C1C; border-color: #FECACA; }
.tag-mint,  .tint-mint  .meta-row span { background: #E8F5E9; color: #15803D; border-color: #BBF7D0; }
.tag-sky,   .tint-sky   .meta-row span { background: #E3F2FD; color: #1565C0; border-color: #BBDEFB; }
.tag-rose,  .tint-rose  .meta-row span { background: #FCE4EC; color: #AD1457; border-color: #F8BBD0; }
.tag-amber, .tint-amber .meta-row span { background: #FFF3E0; color: #E65100; border-color: #FFE0B2; }
.tag-slate, .tint-slate .meta-row span { background: #ECEFF1; color: #37474F; border-color: #CFD8DC; }

/* ================================================================
   HOME FEATURE MAP
   ================================================================ */
.home-feature-section {
  max-width: 1200px;
  width: 100%;
  margin: 2.5rem auto;
  padding: 0 clamp(1rem, 5%, 1.5rem);
  box-sizing: border-box;
  overflow: hidden;
}
.home-feature-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.25rem;
}
.home-feature-kicker {
  font-family: "Montserrat", sans-serif;
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #006400;
  margin: 0 0 0.35rem;
}
.home-feature-header h2 {
  font-family: "Fredoka", sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.35rem);
  font-weight: 700;
  color: #212121;
  line-height: 1.1;
  margin: 0;
}
.home-feature-header > p {
  max-width: 34rem;
  color: #616161;
  font-weight: 600;
  line-height: 1.5;
  margin: 0;
}
.home-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}
.home-feature-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 8.25rem;
  padding: 1.25rem;
  color: inherit;
  text-decoration: none;
  border-radius: 1.5rem !important;
}
.home-feature-card-green { border-top: 8px solid #006400 !important; }
.home-feature-card-gold { border-top: 8px solid #FFD200 !important; }
.home-feature-card-red { border-top: 8px solid #D40000 !important; }
.home-feature-icon {
  flex: 0 0 auto;
  width: 3.5rem;
  height: 3.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: inset 3px 3px 7px rgba(0,0,0,0.04), inset -3px -3px 7px rgba(255,255,255,0.9);
  color: #006400;
  font-size: 1.6rem;
}
.home-feature-copy {
  min-width: 0;
  display: grid;
  gap: 0.3rem;
}
.home-feature-copy strong {
  font-family: "Fredoka", sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: #006400;
  line-height: 1.1;
}
.home-feature-copy span {
  color: #757575;
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.35;
}

@media (max-width: 768px) {
  .core-home-header {
    padding: 1rem 0.75rem 0.5rem !important;
  }
  .core-home-bento {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 0.75rem !important;
  }
  .core-home-hero-card {
    grid-column: 1 / -1 !important;
    min-height: 0 !important;
    gap: 1rem !important;
    padding: 1.25rem !important;
  }
  .core-home-hero-card h1 {
    margin: 0.35rem 0 0.5rem !important;
    font-size: clamp(2rem, 10vw, 2.7rem) !important;
  }
  .core-home-hero-card p {
    margin: 0 !important;
    font-size: 0.95rem !important;
    line-height: 1.35 !important;
  }
  .core-home-hero-actions {
    gap: 0.65rem !important;
  }
  .core-home-hero-actions .puffy-btn {
    flex: 1 1 9rem;
    justify-content: center;
    min-width: 0;
    padding: 0.85rem 1rem !important;
  }
  .core-home-stat {
    min-height: 0 !important;
    padding: 1rem 0.75rem !important;
  }
  .core-home-stat .clay-inset {
    width: 3rem !important;
    height: 3rem !important;
    margin-bottom: 0 !important;
  }
  .core-home-stat strong {
    font-size: clamp(1.65rem, 8vw, 2.25rem) !important;
  }
  .core-home-stat span {
    font-size: 0.58rem !important;
    line-height: 1.15 !important;
  }
  .core-home-ask-section {
    margin: 1rem auto !important;
    padding-inline: 0.75rem !important;
  }
  .core-home-ask-card {
    padding: 1.25rem !important;
  }
  .core-home-ask-card .clay-kicker {
    margin-bottom: 0.65rem !important;
  }
  .core-home-ask-card h2 {
    margin-bottom: 0.5rem !important;
    font-size: clamp(1.5rem, 7vw, 2rem) !important;
  }
  .core-home-ask-card p {
    margin-bottom: 1rem !important;
    line-height: 1.4 !important;
  }
  .core-home-ask-form input {
    min-width: 0 !important;
    width: 100%;
  }
  .core-home-ask-form .puffy-btn {
    width: 100%;
    justify-content: center;
  }
  .home-feature-section {
    margin: 1rem auto;
    padding-inline: 0;
    overflow: visible;
  }
  .home-feature-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
    padding-inline: 1rem;
    margin-bottom: 1rem;
  }
  .home-feature-header h2 {
    font-size: clamp(1.45rem, 7vw, 1.9rem);
  }
  .home-feature-header > p {
    font-size: 0.92rem;
  }
  .home-feature-grid {
    display: flex;
    gap: 0.9rem;
    overflow-x: auto;
    padding: 0.15rem 1rem 0.55rem;
    scroll-snap-type: x proximity;
  }
  .home-feature-card {
    flex: 0 0 82%;
    max-width: 20rem;
    min-height: 7.25rem;
    padding: 1rem !important;
    scroll-snap-align: start;
  }
  .home-feature-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.9rem;
    font-size: 1.35rem;
  }
  .home-feature-copy strong {
    font-size: 1.05rem;
  }
  .home-feature-copy span {
    font-size: 0.84rem;
  }
}

@media (max-width: 480px) {
  .home-feature-card {
    flex-basis: 86%;
  }
}

/* Tinted buttons */
.btn-coral { background: var(--tint-coral); }
.btn-coral:hover, .btn-coral:focus-visible { background: #D44A3B; }
.btn-mint  { background: var(--tint-mint); }
.btn-mint:hover,  .btn-mint:focus-visible  { background: #2E9A6A; }
.btn-sky   { background: var(--tint-sky); }
.btn-sky:hover,   .btn-sky:focus-visible   { background: #3A7BC8; }
.btn-rose  { background: var(--tint-rose); }
.btn-rose:hover,  .btn-rose:focus-visible  { background: #B04A82; }
.btn-amber { background: var(--tint-amber); }
.btn-amber:hover, .btn-amber:focus-visible { background: #C2832E; }
.btn-slate { background: var(--tint-slate); }
.btn-slate:hover, .btn-slate:focus-visible { background: #5A6A7C; }

/* Card typography hierarchy */
.d-card h2,
.card h3 {
  font-weight: var(--fw-b);
  letter-spacing: -0.01em;
}

.d-card-translation,
.d-card p,
.card p {
  color: var(--n-600);
}

/* ================================================================
   WORD EXPLORER — compact mobile reference hub
   ================================================================ */
@media (max-width: 768px) {
  .page-word-explorer .word-explorer-hero {
    padding: 1.5rem 1rem 1rem !important;
  }
  .page-word-explorer .word-explorer-hero > div {
    max-width: 100% !important;
  }
  .page-word-explorer .word-explorer-hero h1 {
    font-size: clamp(1.9rem, 9vw, 2.6rem) !important;
    margin-bottom: 0.4rem !important;
  }
  .page-word-explorer .word-explorer-hero p {
    font-size: 0.95rem !important;
    margin-bottom: 1.25rem !important;
  }
  .page-word-explorer .section {
    padding: 1rem 0.75rem 2rem !important;
  }
  .page-word-explorer .exp-layout {
    padding: 0 !important;
  }
  .page-word-explorer .word-stats-row {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 0.75rem !important;
    margin-bottom: 1rem !important;
  }
  .page-word-explorer .word-stat-card {
    min-width: 0 !important;
    padding: 0.85rem !important;
    gap: 0.7rem !important;
    border-radius: 1.1rem !important;
  }
  .page-word-explorer .word-stat-card .clay-inset {
    width: 2.55rem !important;
    height: 2.55rem !important;
    font-size: 1.1rem !important;
  }
  .page-word-explorer .word-stat-card strong {
    font-size: 1.35rem !important;
  }
  .page-word-explorer .word-filter-rail {
    position: sticky;
    top: 4.6rem;
    z-index: 20;
    display: flex !important;
    flex-wrap: nowrap !important;
    gap: 0.6rem !important;
    margin: 0 -0.75rem 1rem !important;
    padding: 0.55rem 0.75rem 0.7rem !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    background: rgba(250, 247, 242, 0.94);
    backdrop-filter: blur(12px);
    border-block: 1px solid rgba(0, 0, 0, 0.04);
    scroll-snap-type: x proximity;
  }
  .page-word-explorer .word-filter-rail .clay-chip {
    flex: 0 0 auto;
    scroll-snap-align: start;
    white-space: nowrap;
  }
  .page-word-explorer .word-reference-tools {
    margin: 1rem 0 1.25rem !important;
  }
  .page-word-explorer .word-reference-tools h2 {
    font-size: clamp(1.2rem, 5.5vw, 1.5rem) !important;
    line-height: 1.15 !important;
  }
  .page-word-explorer .word-reference-rail {
    display: flex !important;
    grid-template-columns: none !important;
    gap: 0.85rem !important;
    margin-inline: -0.75rem;
    padding: 0.1rem 0.75rem 0.45rem;
    overflow-x: auto;
    scroll-snap-type: x proximity;
  }
  .page-word-explorer .word-reference-card {
    flex: 0 0 82%;
    max-width: 20rem;
    min-height: 6rem;
    padding: 1rem !important;
    border-radius: 1.25rem !important;
    scroll-snap-align: start;
  }
  .page-word-explorer .word-reference-card .clay-inset {
    width: 3rem !important;
    height: 3rem !important;
    font-size: 1.35rem !important;
  }
  .page-word-explorer .word-reference-card strong {
    font-size: 1.05rem !important;
  }
  .page-word-explorer .word-reference-card span span {
    font-size: 0.85rem !important;
  }
  .page-word-explorer .word-results-grid {
    columns: initial !important;
    column-count: initial !important;
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 0.85rem !important;
    margin-top: 1rem !important;
  }
  .page-word-explorer .word-result-item {
    break-inside: auto !important;
    margin-bottom: 0 !important;
    min-width: 0;
  }
  .page-word-explorer .word-card-shell {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 13.4rem;
    border-radius: 1.25rem !important;
  }
  .page-word-explorer .word-card-media {
    height: 5rem !important;
    border-radius: 0 0 1.25rem 1.25rem;
  }
  .page-word-explorer .word-card-media img {
    object-fit: cover;
  }
  .page-word-explorer .word-card-media > span {
    font-size: 3rem !important;
  }
  .page-word-explorer .word-card-badge {
    top: 0.5rem !important;
    right: 0.5rem !important;
    max-width: calc(100% - 1rem);
    padding: 0.25rem 0.55rem !important;
    font-size: 0.55rem !important;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .page-word-explorer .word-card-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 0.7rem !important;
  }
  .page-word-explorer .word-card-category {
    display: none;
  }
  .page-word-explorer .word-card-english {
    font-size: 0.78rem !important;
    line-height: 1.2 !important;
    min-height: 1.45rem;
    margin-bottom: 0.25rem !important;
    color: #757575 !important;
  }
  .page-word-explorer .word-card-title {
    font-size: clamp(1.1rem, 5vw, 1.35rem) !important;
    line-height: 1.05 !important;
    margin-bottom: 0.45rem !important;
    overflow-wrap: anywhere;
  }
  .page-word-explorer .word-card-body .speak-btn,
  .page-word-explorer .word-card-body .audio-player {
    margin-top: auto !important;
  }
  .page-word-explorer .word-card-body .speak-btn {
    width: 100% !important;
    min-height: 2.15rem;
    padding: 0.45rem 0.55rem !important;
    border-radius: 0.9rem !important;
    font-size: 0.76rem !important;
  }
  .page-word-explorer .word-card-actions {
    display: none;
  }
}

@media (max-width: 380px) {
  .page-word-explorer .word-results-grid {
    gap: 0.65rem !important;
  }
  .page-word-explorer .word-card-shell {
    min-height: 14rem;
  }
  .page-word-explorer .word-card-media {
    height: 5.25rem !important;
  }
  .page-word-explorer .word-card-body {
    padding: 0.7rem !important;
  }
  .page-word-explorer .word-card-title {
    font-size: 1.05rem !important;
  }
  .page-word-explorer .word-card-body .speak-btn {
    font-size: 0.72rem !important;
  }
}

/* ================================================================
   PRINT
   ================================================================ */
@media print {
  .scroll-progress, .lpb, .msg-banner, .skip-link, .navbar, .nav-toggle, .nav-overlay, .bottom-nav { display: none !important; }
  .lesson-header { position: static; background: var(--n-800) !important; color: #fff !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .hero, .categories, .section { background: #fff !important; }
  .card { background: #fff !important; border: 1px solid #ddd !important; color: var(--n-900) !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .gram-tbl th { background: rgba(0,100,0,0.1) !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .gram-build { background: #fff !important; border: 1px solid #ccc !important; }
  .footer { background: var(--n-800) !important; color: #fff !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .d-card { box-shadow: none !important; border: 1px solid #ddd !important; }
  a { text-decoration: none !important; color: inherit !important; }
  .flashcard { box-shadow: none !important; border: 2px solid var(--n-300) !important; }
  .lesson-container .shape-1, .lesson-container .shape-2, .lesson-container .shape-3 { display: none !important; }
  .learning-panel, .learning-score-card, .conversation-card, .topic-card, .lesson-tile, .vocab-mini-card, .big-vocab-card, .quiz-question { background: #fff !important; border: 1px solid #ddd !important; box-shadow: none !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .conversation-card-header { background: var(--n-700) !important; color: #fff !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .conversation-line.speaker-b { background: #f5f5f5 !important; border: 1px solid #ddd !important; }
}

/* ================================================================
   GLOBAL HELPERS
   ================================================================ */
[hidden] {
  display: none !important;
}

/* ================================================================
   SOUND TOGGLE & SPEAK BUTTONS
   ================================================================ */

.sound-toggle {
  position: fixed;
  bottom: 88px;
  right: var(--sp-4);
  z-index: 1000;
  width: 44px;
  height: 44px;
  border-radius: var(--r-full);
  border: none;
  background: var(--c-bg);
  color: var(--n-700);
  box-shadow: 0 2px 12px rgba(0,0,0,0.12);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  transition: transform .2s, background .2s, color .2s;
}
.sound-toggle:hover { transform: scale(1.08); }
.sound-toggle:focus-visible { outline: 3px solid var(--c-ac); outline-offset: 2px; }
.sound-toggle .sound-off { display: none; }
.sound-toggle[aria-pressed="false"] .sound-on { display: none; }
.sound-toggle[aria-pressed="false"] .sound-off { display: inline; }

@media (max-width: 768px) {
  .sound-toggle { bottom: 80px; right: var(--sp-3); width: 40px; height: 40px; font-size: 1rem; }
}
@media (max-width: 480px) {
  .sound-toggle { bottom: 72px; right: var(--sp-2); }
}

/* Speak button — small inline TTS trigger */
.speak-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-1);
  padding: 4px 10px;
  border-radius: var(--r-md);
  border: 1px solid var(--n-300);
  background: var(--c-bg);
  color: var(--n-600);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: background .2s, color .2s, border-color .2s;
  vertical-align: middle;
}
.speak-btn:hover, .speak-btn:focus-visible {
  background: var(--n-100);
  color: var(--n-800);
  border-color: var(--n-400);
}
.speak-btn.is-speaking {
  animation: speakPulse 1s ease-in-out infinite;
  border-color: var(--c-pr);
  color: var(--c-pr);
}
@keyframes speakPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Word card speak action */
.word-card .speak-btn {
  margin-top: var(--sp-2);
}

/* Conversation line speak button */
.conversation-line .speak-btn {
  margin-top: var(--sp-1);
}

/* Vocab mini card speak button */
.vocab-mini-card .speak-btn {
  margin-top: var(--sp-1);
}

/* Ask Shona speak button */
.ask-answer-main .speak-btn,
.ask-answer-alt .speak-btn {
  margin-left: var(--sp-2);
  font-size: 0.75rem;
}

/* Print hide sound UI */
@media print {
  .sound-toggle, .speak-btn { display: none !important; }
}