/* ========================================
   TOB México — App Platform CSS
   Dark theme, amber + turquoise accents
   ======================================== */

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111118;
  --bg-card: #161622;
  --bg-card-hover: #1c1c2e;
  --bg-input: #1a1a28;
  --border: #2a2a3a;
  --border-hover: #3a3a4a;
  --text-primary: #f0f0f0;
  --text-secondary: #a0a0b0;
  --text-muted: #666680;
  --amber: #e6a817;
  --amber-glow: rgba(230, 168, 23, 0.15);
  --turquoise: #00b4d8;
  --turquoise-glow: rgba(0, 180, 216, 0.15);
  --terracotta: #c2452d;
  --green: #22c55e;
  --red: #ef4444;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.5);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); background: var(--bg-primary); color: var(--text-primary); line-height: 1.6; min-height: 100vh; }
a { color: var(--amber); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--turquoise); }
img { max-width: 100%; height: auto; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

/* ========= NAV ========= */
.app-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 10, 10, 0.85); backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1400px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2rem; height: 64px;
}
.nav-logo { display: flex; align-items: center; gap: 0.5rem; font-weight: 800; font-size: 1.25rem; color: var(--text-primary); }
.logo-icon { font-size: 1.5rem; }
.logo-accent { color: var(--amber); }
.nav-links { display: flex; gap: 0.25rem; }
.nav-link {
  padding: 0.5rem 1rem; border-radius: var(--radius-sm);
  color: var(--text-secondary); font-weight: 500; font-size: 0.9rem;
  transition: all var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--amber); background: var(--amber-glow); }
.nav-actions { display: flex; align-items: center; gap: 0.75rem; }
.lang-toggle {
  padding: 0.4rem 0.75rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); color: var(--text-secondary);
  font-size: 0.8rem; font-weight: 600; transition: all var(--transition);
}
.lang-toggle:hover { border-color: var(--amber); color: var(--amber); }
.mobile-toggle { display: none; flex-direction: column; gap: 4px; padding: 0.5rem; }
.mobile-toggle span { width: 20px; height: 2px; background: var(--text-secondary); transition: var(--transition); }

@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; background: var(--bg-secondary); padding: 1rem; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .mobile-toggle { display: flex; }
}

/* ========= MAIN ========= */
.app-main { padding-top: 64px; min-height: calc(100vh - 64px); }

/* ========= HERO ========= */
.hero-app {
  position: relative; padding: 6rem 2rem 4rem; text-align: center;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, #0d1b2a 100%);
  overflow: hidden;
}
.hero-bg-pattern {
  position: absolute; inset: 0; opacity: 0.04;
  background-image: radial-gradient(circle at 25% 25%, var(--amber) 1px, transparent 1px),
                     radial-gradient(circle at 75% 75%, var(--turquoise) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content { position: relative; max-width: 900px; margin: 0 auto; }
.hero-badge {
  display: inline-block; padding: 0.4rem 1.2rem; border-radius: 50px;
  background: var(--amber-glow); border: 1px solid rgba(230,168,23,0.3);
  color: var(--amber); font-size: 0.85rem; font-weight: 600;
  margin-bottom: 1.5rem;
}
.hero-app h1 { font-family: var(--font-display); font-size: clamp(2.5rem, 5vw, 4rem); line-height: 1.15; margin-bottom: 1.5rem; }
.hero-gradient {
  background: linear-gradient(135deg, var(--amber), var(--turquoise));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle { font-size: 1.15rem; color: var(--text-secondary); max-width: 700px; margin: 0 auto 2.5rem; line-height: 1.7; }

.hero-stats { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; margin-bottom: 2.5rem; }
.stat-card {
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem 2rem;
  display: flex; flex-direction: column; align-items: center; gap: 0.25rem;
  min-width: 130px; transition: all var(--transition);
}
.stat-card:hover { border-color: var(--amber); transform: translateY(-2px); }
.stat-number { font-size: 2rem; font-weight: 800; color: var(--amber); }
.stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  padding: 0.75rem 2rem; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--amber), #d4960a);
  color: #000; font-weight: 700; font-size: 1rem;
  transition: all var(--transition); border: none;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 20px rgba(230,168,23,0.4); color: #000; }
.btn-secondary {
  padding: 0.75rem 2rem; border-radius: var(--radius-sm);
  border: 1px solid var(--amber); color: var(--amber);
  font-weight: 600; font-size: 1rem; transition: all var(--transition);
  background: transparent;
}
.btn-secondary:hover { background: var(--amber-glow); transform: translateY(-2px); }
.btn-small {
  padding: 0.4rem 1rem; border-radius: var(--radius-sm);
  background: var(--amber-glow); border: 1px solid rgba(230,168,23,0.3);
  color: var(--amber); font-weight: 600; font-size: 0.85rem;
  transition: all var(--transition);
}
.btn-small:hover { background: var(--amber); color: #000; }

/* ========= WORD OF THE DAY ========= */
.word-of-day {
  padding: 0 2rem; margin-top: -1rem; position: relative; z-index: 11;
  margin-bottom: 1rem;
}
.wod-container {
  max-width: 700px; margin: 0 auto;
  background: linear-gradient(135deg, rgba(230,168,23,0.08), rgba(0,180,216,0.08));
  border: 1px solid rgba(230,168,23,0.2); border-radius: var(--radius-lg);
  padding: 1.5rem 2rem; position: relative; overflow: hidden;
}
.wod-container::before {
  content: ''; position: absolute; top: -50%; right: -20%; width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(230,168,23,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.wod-label {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--amber); font-weight: 700; margin-bottom: 1rem;
}
.wod-icon { font-size: 1rem; animation: sparkle 2s ease-in-out infinite; }
@keyframes sparkle {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}
.wod-content { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.wod-word {
  font-family: var(--font-display); font-size: 2rem; font-weight: 800;
  color: var(--amber); line-height: 1.2;
}
.wod-pronunciation {
  color: var(--turquoise); font-style: italic; font-size: 1rem;
}
.wod-translation {
  color: var(--text-secondary); font-size: 1.1rem; flex: 1; min-width: 150px;
}
.wod-play {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--amber); color: var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; cursor: pointer; border: none;
  transition: all 0.2s ease; flex-shrink: 0;
}
.wod-play:hover { transform: scale(1.1); background: #f0b827; }
.wod-play.playing { background: var(--turquoise); animation: pulse-play 0.8s ease infinite; }
.wod-category {
  font-size: 0.75rem; text-transform: uppercase; color: var(--text-muted);
  background: rgba(255,255,255,0.05); padding: 0.15rem 0.5rem; border-radius: 4px;
}
.wod-loading { display: flex; justify-content: center; padding: 0.5rem; }

/* ========= QUICK SEARCH ========= */
.quick-search { padding: 0 2rem; margin-top: -1.5rem; position: relative; z-index: 10; }
.search-container { max-width: 700px; margin: 0 auto; }
.search-box {
  position: relative; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: visible;
  display: flex; align-items: center; padding: 0 1.25rem;
  transition: border-color var(--transition);
}
.search-box:focus-within { border-color: var(--amber); }
.search-icon { width: 20px; height: 20px; color: var(--text-muted); flex-shrink: 0; }
.search-box input {
  flex: 1; padding: 1rem; background: none; border: none; color: var(--text-primary);
  font-size: 1rem; outline: none;
}
.search-box input::placeholder { color: var(--text-muted); }
.search-results {
  display: none; position: absolute; top: calc(100% + 4px); left: 0; right: 0;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  max-height: 400px; overflow-y: auto; z-index: 20;
}
.search-results.visible { display: block; }
.search-result-item {
  padding: 0.75rem 1.25rem; border-bottom: 1px solid var(--border);
  cursor: pointer; transition: background var(--transition);
}
.search-result-item:hover { background: var(--bg-card-hover); }
.search-result-item:last-child { border-bottom: none; }
.sr-word { font-weight: 700; color: var(--amber); }
.sr-translation { color: var(--text-secondary); font-size: 0.9rem; }
.sr-type { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; }

/* ========= LANGUAGES EXPLORER ========= */
.languages-explorer { padding: 4rem 2rem; max-width: 1400px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 2.5rem; }
.section-header h2 { font-family: var(--font-display); font-size: 2rem; margin-bottom: 0.5rem; }
.section-header p { color: var(--text-secondary); }

.filters-bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; margin-bottom: 2rem; flex-wrap: wrap;
}
.filter-group { display: flex; gap: 0.75rem; flex-wrap: wrap; flex: 1; }
.filter-group select, .filter-group input {
  padding: 0.6rem 1rem; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary); font-size: 0.9rem;
  min-width: 160px; outline: none; transition: border-color var(--transition);
}
.filter-group select:focus, .filter-group input:focus { border-color: var(--amber); }
.view-toggles { display: flex; gap: 0.25rem; }
.view-btn {
  padding: 0.6rem; border-radius: var(--radius-sm); border: 1px solid var(--border);
  transition: all var(--transition); display: flex; align-items: center;
}
.view-btn.active, .view-btn:hover { border-color: var(--amber); color: var(--amber); background: var(--amber-glow); }

.languages-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}
.languages-grid.list-view { grid-template-columns: 1fr; }

.lang-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem;
  transition: all var(--transition); cursor: pointer;
  display: flex; flex-direction: column; gap: 0.75rem;
}
.lang-card:hover { border-color: var(--amber); transform: translateY(-3px); box-shadow: var(--shadow); }
.lang-card-header { display: flex; justify-content: space-between; align-items: flex-start; }
.lang-card-name { font-weight: 700; font-size: 1.1rem; }
.lang-card-native { color: var(--turquoise); font-size: 0.9rem; font-style: italic; }
.lang-card-meta { display: flex; gap: 1rem; flex-wrap: wrap; font-size: 0.85rem; color: var(--text-secondary); }
.lang-card-meta span { display: flex; align-items: center; gap: 0.3rem; }

.risk-badge {
  display: inline-block; padding: 0.2rem 0.6rem; border-radius: 50px;
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em;
}
.risk-critico { background: rgba(239,68,68,0.15); color: #f87171; border: 1px solid rgba(239,68,68,0.3); }
.risk-alto { background: rgba(249,115,22,0.15); color: #fb923c; border: 1px solid rgba(249,115,22,0.3); }
.risk-mediano { background: rgba(234,179,8,0.15); color: #facc15; border: 1px solid rgba(234,179,8,0.3); }
.risk-no-inmediato { background: rgba(34,197,94,0.15); color: #4ade80; border: 1px solid rgba(34,197,94,0.3); }

.isolate-badge {
  display: inline-block; padding: 0.2rem 0.6rem; border-radius: 50px;
  font-size: 0.75rem; font-weight: 600; background: var(--turquoise-glow);
  color: var(--turquoise); border: 1px solid rgba(0,180,216,0.3);
}

.languages-count { text-align: center; margin-top: 2rem; color: var(--text-muted); font-size: 0.9rem; }

.loading-skeleton { display: contents; }
.skeleton-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  height: 140px; animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* ========= TOOLS SECTION ========= */
.tools-section { padding: 4rem 2rem; max-width: 1200px; margin: 0 auto; }
.tools-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.tool-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 2rem; transition: all var(--transition); display: flex; flex-direction: column; gap: 0.75rem;
}
.tool-card:hover { border-color: var(--amber); transform: translateY(-3px); box-shadow: var(--shadow); color: var(--text-primary); }
.tool-icon { font-size: 2.5rem; }
.tool-card h3 { font-size: 1.2rem; font-weight: 700; }
.tool-card p { color: var(--text-secondary); font-size: 0.9rem; flex: 1; }
.tool-stat { font-size: 0.85rem; color: var(--amber); font-weight: 600; margin-top: auto; }

/* ========= TOOL PAGES ========= */
.tool-hero {
  padding: 4rem 2rem 2rem; text-align: center;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
}
.tool-hero h1 { font-family: var(--font-display); font-size: 2.5rem; margin-bottom: 0.75rem; }
.tool-hero p { color: var(--text-secondary); max-width: 600px; margin: 0 auto; }

/* ========= DICTIONARY ========= */
.dictionary-tool { padding: 2rem; max-width: 1200px; margin: 0 auto; }
.dict-controls { margin-bottom: 2rem; }
.dict-search-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.dict-search-row input, .dict-search-row select {
  padding: 0.7rem 1rem; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary); outline: none;
}
.dict-search-row input { flex: 1; min-width: 200px; }
.dict-search-row input:focus, .dict-search-row select:focus { border-color: var(--amber); }
.dict-results { min-height: 300px; }
.dict-loading { text-align: center; padding: 3rem; color: var(--text-muted); }

.word-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.25rem; margin-bottom: 0.75rem; transition: border-color var(--transition);
}
.word-card:hover { border-color: var(--border-hover); }
.word-main { display: flex; align-items: baseline; gap: 1rem; flex-wrap: wrap; margin-bottom: 0.5rem; }
.word-indigenous { font-size: 1.3rem; font-weight: 800; color: var(--amber); }
.word-pronunciation { color: var(--turquoise); font-size: 0.9rem; font-style: italic; }
.word-translations { color: var(--text-secondary); }
.word-example { font-size: 0.85rem; color: var(--text-muted); margin-top: 0.5rem; font-style: italic; }
.cat-tag {
  display: inline-block; padding: 0.15rem 0.5rem; border-radius: 4px;
  background: rgba(255,255,255,0.05); font-size: 0.75rem; color: var(--text-muted);
}

.dict-pagination { display: flex; gap: 0.5rem; justify-content: center; margin-top: 2rem; }
.page-btn {
  padding: 0.5rem 0.75rem; border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-secondary); transition: all var(--transition); font-size: 0.9rem;
}
.page-btn:hover, .page-btn.active { border-color: var(--amber); color: var(--amber); background: var(--amber-glow); }

/* ========= TRANSLATE ========= */
.translate-tool { padding: 2rem; max-width: 1000px; margin: 0 auto; }
.translate-box { display: flex; gap: 1rem; align-items: stretch; }
.translate-panel {
  flex: 1; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column;
}
.panel-header {
  padding: 0.75rem 1rem; border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}
.panel-header select {
  background: transparent; border: none; color: var(--text-primary);
  font-weight: 600; font-size: 0.95rem; outline: none; cursor: pointer;
}
.translate-panel textarea {
  flex: 1; padding: 1rem; background: none; border: none; color: var(--text-primary);
  font-size: 1.05rem; resize: none; min-height: 200px; outline: none; line-height: 1.7;
}
.translate-panel textarea::placeholder { color: var(--text-muted); }
.char-count { padding: 0.5rem 1rem; text-align: right; color: var(--text-muted); font-size: 0.8rem; }
.translate-output { padding: 1rem; min-height: 200px; flex: 1; }
.output-placeholder { color: var(--text-muted); }
.swap-btn {
  align-self: center; width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; color: var(--text-secondary); transition: all var(--transition); flex-shrink: 0;
}
.swap-btn:hover { border-color: var(--amber); color: var(--amber); transform: rotate(180deg); }
.translate-actions { text-align: center; margin: 1.5rem 0; }
.translate-info { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; margin-top: 2rem; }
.info-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.5rem;
}
.info-card h4 { margin-bottom: 0.75rem; color: var(--amber); }
.info-card ol { padding-left: 1.25rem; color: var(--text-secondary); }
.info-card ol li { margin-bottom: 0.5rem; }
.info-card.warning { border-color: rgba(249,115,22,0.3); }
.info-card.warning h4 { color: #fb923c; }
.info-card.warning p { color: var(--text-secondary); }

@media (max-width: 768px) {
  .translate-box { flex-direction: column; }
  .swap-btn { transform: rotate(90deg); }
  .swap-btn:hover { transform: rotate(270deg); }
  .translate-info { grid-template-columns: 1fr; }
}

/* ========= AUDIO LIBRARY ========= */
.audio-tool { padding: 2rem; max-width: 1200px; margin: 0 auto; }
.audio-controls { display: flex; gap: 0.75rem; margin-bottom: 2rem; flex-wrap: wrap; }
.audio-controls select {
  padding: 0.7rem 1rem; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary); outline: none; min-width: 180px;
}
.audio-stats { margin-bottom: 1.5rem; text-align: center; color: var(--text-secondary); }
.audio-results { min-height: 300px; }
.audio-loading { text-align: center; padding: 3rem; color: var(--text-muted); }

.audio-item {
  display: flex; align-items: center; gap: 1rem; padding: 1rem 1.25rem;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 0.75rem; transition: border-color var(--transition);
}
.audio-item:hover { border-color: var(--border-hover); }
.audio-icon { font-size: 1.5rem; }
.audio-info { flex: 1; }
.audio-info h4 { font-size: 1rem; margin-bottom: 0.25rem; }
.audio-info p { font-size: 0.85rem; color: var(--text-secondary); }

.audio-sources-info { padding: 4rem 2rem; max-width: 1200px; margin: 0 auto; }
.audio-sources-info h2 { font-family: var(--font-display); text-align: center; margin-bottom: 2rem; }
.sources-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.source-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.5rem;
}
.source-card h3 { color: var(--amber); margin-bottom: 0.5rem; }
.source-card p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 0.75rem; }
.source-tag {
  display: inline-block; padding: 0.2rem 0.5rem; border-radius: 4px;
  background: rgba(255,255,255,0.05); font-size: 0.75rem; color: var(--text-muted);
}

/* ========= TTS PRONUNCIATION TOOL ========= */
.tts-tool { padding: 2rem; max-width: 1200px; margin: 0 auto; }
.tts-container {
  background: linear-gradient(135deg, rgba(0,180,216,0.06), rgba(230,168,23,0.06));
  border: 1px solid rgba(0,180,216,0.2); border-radius: var(--radius-lg);
  padding: 2rem;
}
.tts-header { text-align: center; margin-bottom: 1.5rem; }
.tts-header h2 { font-family: var(--font-display); margin-bottom: 0.5rem; }
.tts-header p { color: var(--text-secondary); font-size: 0.95rem; }
.tts-input-row {
  display: flex; gap: 0.75rem; align-items: stretch; flex-wrap: wrap;
  max-width: 700px; margin: 0 auto;
}
.tts-input-row select {
  padding: 0.7rem 1rem; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary); outline: none;
  min-width: 180px;
}
.tts-input-row input {
  flex: 1; min-width: 200px; padding: 0.7rem 1rem;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary); outline: none;
}
.tts-input-row input:focus { border-color: var(--turquoise); }
.tts-status {
  text-align: center; margin-top: 1rem; font-size: 0.85rem; color: var(--text-muted);
  min-height: 1.5rem;
}
.tts-status.error { color: var(--red); }

/* ========= CONTRIBUTE ========= */
.contribute-tool { padding: 2rem; max-width: 800px; margin: 0 auto; }
.contribute-types { display: flex; gap: 0.5rem; margin-bottom: 2rem; flex-wrap: wrap; }
.type-btn {
  padding: 0.6rem 1.25rem; border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-secondary); font-weight: 500; transition: all var(--transition);
}
.type-btn.active, .type-btn:hover { border-color: var(--amber); color: var(--amber); background: var(--amber-glow); }

.contribute-form .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group.full-width { grid-column: 1 / -1; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); }
.form-group input, .form-group select, .form-group textarea {
  padding: 0.7rem 1rem; background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary); outline: none;
  transition: border-color var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--amber); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-muted); }

#contributeStatus { margin-top: 1rem; padding: 0.75rem; border-radius: var(--radius-sm); text-align: center; display: none; }
#contributeStatus.success { display: block; background: rgba(34,197,94,0.15); color: var(--green); border: 1px solid rgba(34,197,94,0.3); }
#contributeStatus.error { display: block; background: rgba(239,68,68,0.15); color: var(--red); border: 1px solid rgba(239,68,68,0.3); }

.sovereignty-note { padding: 4rem 2rem; max-width: 800px; margin: 0 auto; }
.sovereignty-note h2 { font-family: var(--font-display); text-align: center; margin-bottom: 1.5rem; }
.sovereignty-content {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 2rem;
}
.sovereignty-content p { color: var(--text-secondary); margin-bottom: 1rem; }
.sovereignty-content ul { list-style: none; }
.sovereignty-content li { padding: 0.5rem 0; color: var(--text-secondary); padding-left: 1.5rem; position: relative; }
.sovereignty-content li::before { content: '✓'; position: absolute; left: 0; color: var(--green); font-weight: 700; }

/* ========= LANGUAGE DETAIL PAGE ========= */
.lang-hero { padding: 5rem 2rem 2rem; max-width: 1200px; margin: 0 auto; }
.breadcrumb { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.breadcrumb a { color: var(--text-secondary); }
.lang-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 2rem; flex-wrap: wrap; margin-bottom: 2rem; }
.lang-title-block h1 { font-family: var(--font-display); font-size: 2.5rem; margin-bottom: 0.25rem; }
.native-name { color: var(--turquoise); font-size: 1.2rem; font-style: italic; margin-bottom: 0.75rem; }
.lang-quick-stats { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.qs { display: flex; flex-direction: column; align-items: center; gap: 0.15rem; min-width: 80px; }
.qs-num { font-weight: 800; font-size: 1.1rem; color: var(--amber); }
.qs-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; }
.lang-description { max-width: 800px; margin-bottom: 2rem; }
.lang-description p { color: var(--text-secondary); line-height: 1.8; font-size: 1.05rem; }
.lang-states { margin-bottom: 2rem; }
.lang-states h3 { margin-bottom: 0.75rem; font-size: 1rem; color: var(--text-secondary); }
.states-tags { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.state-tag {
  padding: 0.3rem 0.8rem; border-radius: 50px; background: rgba(255,255,255,0.05);
  border: 1px solid var(--border); font-size: 0.85rem; color: var(--text-secondary);
}

.lang-section { padding: 2rem; max-width: 1200px; margin: 0 auto 1rem; }
.section-title-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.section-title-row h2 { font-family: var(--font-display); }
.see-all-link { font-size: 0.9rem; font-weight: 600; }

.variants-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
.variant-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.25rem;
}
.variant-card h4 { margin-bottom: 0.25rem; }
.variant-native { color: var(--turquoise); font-size: 0.9rem; font-style: italic; margin-bottom: 0.5rem; }
.variant-meta { display: flex; gap: 0.75rem; flex-wrap: wrap; font-size: 0.85rem; color: var(--text-secondary); }
.iso-tag { background: rgba(255,255,255,0.05); padding: 0.1rem 0.4rem; border-radius: 3px; font-family: monospace; font-size: 0.8rem; }
.variant-notes { margin-top: 0.5rem; font-size: 0.85rem; color: var(--text-muted); font-style: italic; }

.vocab-table-wrap { overflow-x: auto; }
.vocab-table { width: 100%; border-collapse: collapse; }
.vocab-table th {
  text-align: left; padding: 0.75rem 1rem; border-bottom: 2px solid var(--border);
  font-size: 0.8rem; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.05em;
}
.vocab-table td { padding: 0.65rem 1rem; border-bottom: 1px solid var(--border); }
.vocab-table tr:hover { background: var(--bg-card); }
.word-cell { color: var(--amber); }
.pron-cell { color: var(--turquoise); font-style: italic; font-size: 0.9rem; }

.phrases-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
.phrase-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.25rem;
}
.phrase-indigenous { font-size: 1.15rem; font-weight: 700; color: var(--amber); margin-bottom: 0.25rem; }
.phrase-pronunciation { font-size: 0.85rem; color: var(--turquoise); font-style: italic; margin-bottom: 0.5rem; }
.phrase-translation { color: var(--text-secondary); margin-bottom: 0.5rem; }
.phrase-category { font-size: 0.75rem; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.05em; }

.audio-list { display: flex; flex-direction: column; gap: 0.75rem; }

.lang-cta {
  text-align: center; padding: 4rem 2rem;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
  border-radius: var(--radius-lg); margin: 2rem auto;
}
.lang-cta h2 { margin-bottom: 0.75rem; }
.lang-cta p { color: var(--text-secondary); margin-bottom: 1.5rem; }

/* ========= ERROR PAGES ========= */
.error-page { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 60vh; text-align: center; padding: 2rem; }
.error-page h1 { font-family: var(--font-display); font-size: 6rem; color: var(--amber); }
.error-page p { color: var(--text-secondary); margin-bottom: 2rem; }

/* ========= FOOTER ========= */
.app-footer { padding: 4rem 2rem 2rem; background: var(--bg-secondary); border-top: 1px solid var(--border); margin-top: 4rem; }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2rem; margin-bottom: 2rem; }
.footer-col h3 { font-family: var(--font-display); margin-bottom: 0.75rem; color: var(--amber); }
.footer-col h4 { margin-bottom: 0.75rem; color: var(--text-secondary); }
.footer-col p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }
.footer-col a { display: block; color: var(--text-muted); font-size: 0.9rem; padding: 0.2rem 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--amber); }
.footer-bottom { text-align: center; padding-top: 2rem; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 0.85rem; }
.footer-bottom a { color: var(--text-secondary); }

/* ========= RESPONSIVE ========= */
@media (max-width: 640px) {
  .hero-stats { gap: 0.75rem; }
  .stat-card { min-width: 100px; padding: 1rem; }
  .stat-number { font-size: 1.5rem; }
  .languages-grid { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: 1fr; }
  .contribute-form .form-grid { grid-template-columns: 1fr; }
  .dict-search-row { flex-direction: column; }
}

/* ========= SCROLL REVEAL ========= */
.lang-section, .tools-section, .sovereignty-note {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.lang-section.visible, .tools-section.visible, .sovereignty-note.visible {
  opacity: 1; transform: translateY(0);
}

/* Glow accents for critical languages */
.lang-card:has(.risk-critico) { border-left: 3px solid #f87171; }
.lang-card:has(.risk-alto) { border-left: 3px solid #fb923c; }

/* Vocab table row audio hover */
.vocab-table tr:hover .play-btn { transform: scale(1.1); }

/* Phrase card hover lift */
.phrase-card { transition: all var(--transition); }
.phrase-card:hover { transform: translateY(-3px); border-color: var(--amber); box-shadow: var(--shadow); }

/* Nav scroll effect */
.app-nav.scrolled { background: rgba(10, 10, 10, 0.95); box-shadow: 0 2px 20px rgba(0,0,0,0.3); }

/* ========= ANIMATIONS ========= */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.lang-card { animation: fadeInUp 0.4s ease forwards; opacity: 0; }
.lang-card:nth-child(1) { animation-delay: 0s; }
.lang-card:nth-child(2) { animation-delay: 0.05s; }
.lang-card:nth-child(3) { animation-delay: 0.1s; }
.lang-card:nth-child(4) { animation-delay: 0.15s; }
.lang-card:nth-child(5) { animation-delay: 0.2s; }
.lang-card:nth-child(6) { animation-delay: 0.25s; }

/* Translate result styles */
.translate-result { padding: 0; }
.translate-result .result-main { font-size: 1.3rem; font-weight: 700; color: var(--amber); margin-bottom: 0.5rem; }
.translate-result .result-pronunciation { color: var(--turquoise); font-style: italic; margin-bottom: 0.5rem; }
.translate-result .result-source { font-size: 0.8rem; padding: 0.2rem 0.5rem; border-radius: 4px; display: inline-block; margin-bottom: 0.5rem; }
.translate-result .result-source.high { background: rgba(34,197,94,0.15); color: var(--green); }
.translate-result .result-source.medium { background: rgba(234,179,8,0.15); color: #facc15; }
.translate-result .result-source.experimental { background: rgba(249,115,22,0.15); color: #fb923c; }
.translate-result .result-note { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }
.translate-result .parallel-verse { background: rgba(255,255,255,0.03); padding: 0.75rem; border-radius: var(--radius-sm); margin-bottom: 0.5rem; border-left: 3px solid var(--amber); }
.translate-result .verse-ref { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.translate-result .verse-text { font-size: 0.9rem; margin-bottom: 0.15rem; }
.translate-result .verse-indigenous { color: var(--amber); }
.translate-result .verse-spanish { color: var(--text-secondary); }

/* Play button for audio pronunciation */
.play-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--amber); color: var(--bg-primary);
  border: none; cursor: pointer; font-size: 0.75rem;
  flex-shrink: 0; transition: all 0.2s ease;
  box-shadow: 0 0 0 0 rgba(230, 168, 23, 0.4);
}
.play-btn:hover { transform: scale(1.15); background: #f0b827; }
.play-btn.playing {
  animation: pulse-play 0.8s ease infinite;
  background: var(--turquoise);
}
@keyframes pulse-play {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 180, 216, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(0, 180, 216, 0); }
}
.word-main { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }

/* Phrase play button (smaller) */
.phrase-play { margin-right: 0.5rem; }

/* Loading spinner */
.spinner { display: inline-block; width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--amber); border-radius: 50%; animation: spin 0.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }