/* ============================================
   Traducteur Mongol — Styles
   Palette : bleu steppe + blanc + doré
   Typo : Fraunces (titres) + DM Sans (corps)
   ============================================ */

:root {
  /* Couleurs principales */
  --blue-deep: #1a3a5c;
  --blue-sky: #4a90d9;
  --blue-light: #e8f1fb;
  --blue-pale: #f0f6fd;
  --gold: #d4a853;
  --gold-light: #f5e6c4;
  --white: #ffffff;
  --gray-50: #f8f9fa;
  --gray-100: #f0f1f3;
  --gray-200: #e2e4e8;
  --gray-400: #9ca3af;
  --gray-600: #6b7280;
  --gray-800: #1f2937;
  --green: #22c55e;
  --red: #ef4444;

  /* Typo */
  --font-display: 'Fraunces', serif;
  --font-body: 'DM Sans', sans-serif;

  /* Espacements */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  /* Rayons */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;

  /* Ombres */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--gray-800);
  background: var(--blue-pale);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ============================================
   Layout
   ============================================ */

.app-main {
  flex: 1;
  padding: var(--spacing-md);
  padding-bottom: calc(4.5rem + var(--spacing-md));
  max-width: 480px;
  margin: 0 auto;
  width: 100%;
}

/* ============================================
   Bottom Navigation
   ============================================ */

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  padding: var(--spacing-sm) 0;
  padding-bottom: calc(var(--spacing-sm) + env(safe-area-inset-bottom));
  z-index: 100;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.06);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-decoration: none;
  color: var(--gray-400);
  font-size: 0.7rem;
  font-weight: 500;
  transition: color 0.2s;
  padding: var(--spacing-xs) var(--spacing-md);
}

.nav-item.active {
  color: var(--blue-sky);
}

.nav-icon {
  width: 1.5rem;
  height: 1.5rem;
}

/* ============================================
   Header
   ============================================ */

.page-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.page-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--blue-deep);
}

.offline-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.7rem;
  color: var(--green);
  margin-top: var(--spacing-xs);
}

.offline-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ============================================
   Translator
   ============================================ */

.translator-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.lang-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background: var(--blue-deep);
  color: var(--white);
}

.lang-label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
}

.swap-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--white);
  cursor: pointer;
  transition: all 0.3s;
}

.swap-btn:active {
  background: rgba(255, 255, 255, 0.15);
  transform: rotate(180deg);
}

.swap-btn svg {
  width: 1.2rem;
  height: 1.2rem;
}

.input-section {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--gray-100);
  min-height: 120px;
}

.text-input {
  width: 100%;
  min-height: 80px;
  border: none;
  outline: none;
  resize: none;
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--gray-800);
  background: transparent;
  line-height: 1.5;
}

.text-input::placeholder {
  color: var(--gray-400);
}

.input-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.output-section {
  padding: var(--spacing-md);
  min-height: 120px;
  background: var(--gray-50);
}

.output-text {
  font-size: 1.2rem;
  color: var(--blue-deep);
  line-height: 1.5;
  font-weight: 500;
}

.output-transliteration {
  font-size: 0.85rem;
  color: var(--gray-600);
  margin-top: var(--spacing-sm);
  font-style: italic;
}

.output-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.output-placeholder {
  color: var(--gray-400);
  font-size: 0.95rem;
}

/* ============================================
   Boutons d'action (micro, haut-parleur, copier)
   ============================================ */

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  border-radius: var(--radius-full);
  background: var(--blue-light);
  color: var(--blue-sky);
  cursor: pointer;
  transition: all 0.2s;
}

.action-btn:active {
  transform: scale(0.92);
  background: var(--blue-sky);
  color: var(--white);
}

.action-btn svg {
  width: 1.2rem;
  height: 1.2rem;
}

.mic-btn {
  width: 3.5rem;
  height: 3.5rem;
  background: var(--blue-sky);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.mic-btn:active {
  background: var(--blue-deep);
}

.mic-btn.recording {
  background: var(--red);
  animation: pulse-mic 1s infinite;
}

@keyframes pulse-mic {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(239, 68, 68, 0); }
}

.mic-btn svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* ============================================
   Loading
   ============================================ */

.loading-spinner {
  display: inline-block;
  width: 1.2rem;
  height: 1.2rem;
  border: 2px solid var(--gray-200);
  border-top-color: var(--blue-sky);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.translating-indicator {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--gray-600);
  font-size: 0.85rem;
}

/* ============================================
   Phrasebook
   ============================================ */

.search-bar {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.search-input {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 2.8rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--white);
  outline: none;
  transition: border-color 0.2s;
}

.search-input:focus {
  border-color: var(--blue-sky);
}

.search-icon {
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  width: 1.2rem;
  height: 1.2rem;
  color: var(--gray-400);
}

.category-chips {
  display: flex;
  gap: var(--spacing-sm);
  overflow-x: auto;
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.category-chips::-webkit-scrollbar {
  display: none;
}

.chip {
  flex-shrink: 0;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-600);
  background: var(--white);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.chip.active {
  background: var(--blue-sky);
  color: var(--white);
  border-color: var(--blue-sky);
}

.phrase-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
}

.phrase-fr {
  font-size: 0.95rem;
  color: var(--gray-800);
  margin-bottom: var(--spacing-sm);
}

.phrase-mn {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--blue-deep);
}

.phrase-translit {
  font-size: 0.8rem;
  color: var(--gray-600);
  font-style: italic;
  margin-top: 2px;
}

.phrase-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.phrase-actions .action-btn {
  width: 2rem;
  height: 2rem;
}

.phrase-actions .action-btn svg {
  width: 1rem;
  height: 1rem;
}

/* ============================================
   Settings
   ============================================ */

.settings-section {
  margin-bottom: var(--spacing-xl);
}

.settings-section-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: var(--spacing-md);
}

.setting-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.setting-info {
  flex: 1;
}

.setting-label {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--gray-800);
}

.setting-desc {
  font-size: 0.8rem;
  color: var(--gray-600);
  margin-top: 2px;
}

.setting-status {
  font-size: 0.8rem;
  font-weight: 600;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
}

.setting-status.ok {
  color: var(--green);
  background: #ecfdf5;
}

.setting-status.warning {
  color: var(--gold);
  background: var(--gold-light);
}

.setting-status.error {
  color: var(--red);
  background: #fef2f2;
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--gray-100);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-top: var(--spacing-sm);
}

.progress-fill {
  height: 100%;
  background: var(--blue-sky);
  border-radius: var(--radius-full);
  transition: width 0.3s;
}

/* ============================================
   Utilitaires
   ============================================ */

.empty-state {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--gray-400);
}

.empty-state svg {
  width: 3rem;
  height: 3rem;
  margin-bottom: var(--spacing-md);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}