/* ==========================================================================
   Transcriptor de audio con IA (Whisper Local) - Estilos Principales
   Fijate Tools • 100 % Local en Navegador • Privado & Ilimitado
   ========================================================================== */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', var(--font-sans);
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Tema Oscuro */
  --bg-main: #090d16;
  --bg-card: #111827;
  --bg-card-hover: #172238;
  --bg-input: #0b1120;
  --bg-elevated: #1e293b;
  --border-color: #1e293b;
  --border-focus: #6366f1;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.25);

  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;
  --accent-amber: #f59e0b;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);

  --trans-fast: 0.15s ease;
  --trans-normal: 0.25s ease;
}

[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-input: #f8fafc;
  --bg-elevated: #e2e8f0;
  --border-color: #cbd5e1;
  --border-focus: #4f46e5;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;

  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-glow: rgba(79, 70, 229, 0.15);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Header */
.app-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
}

.header-container {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-back-tools {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--trans-fast);
}

.btn-back-tools:hover {
  background: var(--bg-elevated);
  color: var(--primary);
  border-color: var(--border-focus);
}

.brand-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo-box {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-weight: 500;
}

.badge-local {
  background: rgba(99, 102, 241, 0.12);
  color: var(--primary);
  border: 1px solid rgba(99, 102, 241, 0.25);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-icon {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--trans-fast);
}

.btn-icon:hover {
  background: var(--bg-elevated);
  color: var(--text-main);
  border-color: var(--border-focus);
}

/* Layout */
.main-wrapper {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem;
  flex: 1;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Barra de Estado del Modelo */
.model-status-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.model-info-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.model-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-amber);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
}

.model-indicator.ready {
  background: var(--accent-emerald);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.model-indicator.loading {
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.progress-bar-wrap {
  width: 100%;
  max-width: 280px;
  height: 8px;
  background: var(--bg-input);
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
  display: none;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
  border-radius: 9999px;
  transition: width 0.2s ease;
}

/* Cuadrícula de Entrada de Audio */
.audio-input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .audio-input-grid {
    grid-template-columns: 1fr;
  }
}

.input-box-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1rem;
  cursor: pointer;
  transition: all var(--trans-normal);
  min-height: 240px;
}

.input-box-card:hover {
  border-color: var(--primary);
  background: var(--bg-card-hover);
  box-shadow: 0 0 20px var(--primary-glow);
}

.mic-btn-pulse {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 20px var(--primary-glow);
  transition: transform var(--trans-fast);
}

.mic-btn-pulse.recording {
  background: linear-gradient(135deg, var(--accent-rose), #e11d48);
  animation: recordingPulse 1.2s infinite;
}

@keyframes recordingPulse {
  0% { box-shadow: 0 0 0 0 rgba(244, 63, 94, 0.6); }
  70% { box-shadow: 0 0 0 20px rgba(244, 63, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(244, 63, 94, 0); }
}

/* Área de Transcripción y Resultados */
.transcription-workspace {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .transcription-workspace {
    grid-template-columns: 1fr;
  }
}

.options-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.custom-select {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-family: inherit;
  width: 100%;
  cursor: pointer;
  outline: none;
}

.custom-select:focus {
  border-color: var(--border-focus);
}

/* Panel de Resultados */
.results-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: var(--shadow-sm);
}

/* Visor de Onda de Audio */
.waveform-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.waveform-canvas {
  width: 100%;
  height: 64px;
  display: block;
}

.audio-controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* Pestañas de Resultados */
.results-tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.tab-pill {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--trans-fast);
}

.tab-pill.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

/* Vista de Texto Corrido */
.transcription-text-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-main);
  min-height: 220px;
  max-height: 480px;
  overflow-y: auto;
  white-space: pre-wrap;
}

/* Estado de carga de transcripción en vivo */
.transcription-loading-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  text-align: center;
}

.ai-pulse-rings {
  position: relative;
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-pulse-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  z-index: 2;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
}

.ai-pulse-wave {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--primary);
  animation: aiWave 2s cubic-bezier(0.25, 1, 0.5, 1) infinite;
}

.ai-pulse-wave:nth-child(2) {
  animation-delay: 0.6s;
}

@keyframes aiWave {
  0% {
    transform: scale(0.6);
    opacity: 1;
  }
  100% {
    transform: scale(1.6);
    opacity: 0;
  }
}

.transcription-live-bar {
  width: 100%;
  max-width: 360px;
  height: 6px;
  background: var(--bg-input);
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
}

.transcription-live-shimmer {
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--primary), var(--accent-cyan), transparent);
  border-radius: 9999px;
  animation: liveShimmer 1.8s ease-in-out infinite;
}

@keyframes liveShimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(300%); }
}

.transcription-live-timer {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* Vista de Bloques con Timestamps */
.timestamp-blocks-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-height: 480px;
  overflow-y: auto;
  padding-right: 0.35rem;
}

.timestamp-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  cursor: pointer;
  transition: all var(--trans-fast);
}

.timestamp-card:hover {
  border-color: var(--primary);
  background: var(--bg-elevated);
}

.timestamp-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* Botones y Acciones */
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #ffffff;
  border: none;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: all var(--trans-fast);
  box-shadow: 0 2px 10px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-secondary {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: all var(--trans-fast);
}

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--border-focus);
}

/* Modales y Toasts */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 100;
}

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 100%;
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
}

.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 110;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--primary);
  color: var(--text-main);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Sección FAQ */
.seo-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-top: 1rem;
}

.seo-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .faq-grid {
    grid-template-columns: 1fr;
  }
}

.faq-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: var(--radius-md);
}

.faq-q {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.faq-a {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}