/* ============================================================================
   LAIONA — Sistema Visual Estructurado sobre Base Clara
   Reglas de diseño:
   1. Ninguna palabra ni frase mezcla colores distintos (cero texto multicolor).
   2. Escala tonal progresiva para los 5 niveles de texto (H1 -> H2 -> H3 -> Cuerpo -> Nota).
   3. Cada color tiene una función clara:
      - Gris-Azulado: Fondos, superficies, bordes y cuerpo de lectura.
      - Azul: Estructura académica, navegación y Comercio Internacional.
      - Rosa: Acción de voz, conversación e identidad de Laiona.
      - Cálidos (Ámbar / Coral): Exclusivamente para alertas, correcciones y retos.
   ============================================================================ */

/* ----------------------------------------------------------------------------
   PROPUESTA 1: "Slate Blue & Rose" (Base Clara Gris-Azulada · Escala de Texto en Azules)
   ---------------------------------------------------------------------------- */
:root,
body[data-theme="proposal-1"] {
  /* Superficies en degradados suaves de Gris-Azulado */
  --bg-page: linear-gradient(180deg, #eef3f9 0%, #e3ebf4 100%);
  --bg-topbar: rgba(244, 247, 252, 0.92);
  --bg-card: linear-gradient(180deg, #ffffff 0%, #f7f9fc 100%);
  --bg-card-hover: linear-gradient(180deg, #ffffff 0%, #f1f5fb 100%);
  --bg-subtle: #e8eef6;
  --bg-hero: linear-gradient(180deg, #ffffff 0%, #f2f6fc 100%);
  --border-card: #cbd5e1;
  --border-focus: #3b82f6;

  /* Jerarquía de Texto en 5 niveles tonales (De Azul Profundo a Gris-Azulado Suave) */
  --text-level-1: #0f2942; /* Títulos H1 y Marca: Azul Marino Pizarra muy oscuro */
  --text-level-2: #1e4976; /* Subtítulos H2 y Títulos de Tarjeta H3: Azul Acero */
  --text-level-3: #c02669; /* Nivel 3 (Roles / Categorías destacadas): Rosa Frambuesa sólido */
  --text-level-4: #334e68; /* Cuerpo de texto principal: Gris Azulado Medio-Oscuro */
  --text-level-5: #627d98; /* Texto secundario y notas: Gris Azulado Suave */

  /* Colores Funcionales por Categoría (Degradados monocromáticos de una sola familia) */
  --voice-rose-bg: linear-gradient(180deg, #ec4899 0%, #db2777 100%);
  --voice-rose-soft: #fdf2f8;
  --voice-rose-border: #f9a8d4;
  --voice-rose-text: #be185d;

  --study-blue-bg: linear-gradient(180deg, #3b82f6 0%, #2563eb 100%);
  --study-blue-soft: #eff6ff;
  --study-blue-border: #bfdbfe;
  --study-blue-text: #1d4ed8;

  /* Diferenciador Cálido EXCLUSIVO para Alertas y Correcciones */
  --warm-alert-bg: linear-gradient(180deg, #fffbeb 0%, #fef3c7 100%);
  --warm-alert-border: #f59e0b;
  --warm-alert-title: #b45309;
  --warm-alert-text: #92400e;
  --warm-badge-bg: #fef3c7;

  --shadow-card: 0 6px 18px -4px rgba(15, 41, 66, 0.07), 0 2px 6px -1px rgba(15, 41, 66, 0.04);
  --shadow-btn-rose: 0 6px 16px -3px rgba(219, 39, 119, 0.32);
  --shadow-btn-blue: 0 6px 16px -3px rgba(37, 99, 235, 0.28);

  --radius-xl: 20px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg-page);
  background-attachment: fixed;
  color: var(--text-level-4);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  line-height: 1.55;
}

/* Contenedor Principal */
.app-shell {
  display: flex;
  flex-direction: column;
  max-width: 1120px;
  margin: 0 auto;
  min-height: 100dvh;
  padding-top: var(--safe-top);
  padding-bottom: calc(var(--safe-bottom) + 92px);
}

/* Cabecera Superior */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--bg-topbar);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-card);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--voice-rose-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.15rem;
  color: #ffffff;
  box-shadow: var(--shadow-btn-rose);
}

/* Color uniforme (Nivel 1) para el título de la marca */
.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text-level-1);
}

/* Nivel 5 para el subtítulo de cabecera */
.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-level-5);
  display: block;
  font-weight: 500;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-pill {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid var(--border-card);
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--text-level-4);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f59e0b;
}

.status-dot.online {
  background: #2563eb;
}

.icon-btn {
  background: #ffffff;
  border: 1px solid var(--border-card);
  color: var(--text-level-2);
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s ease;
}

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

/* Contenido Principal */
.main-content {
  flex: 1;
  padding: 22px;
}

.tab-section {
  display: none;
  animation: fadeIn 0.2s ease;
}

.tab-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Tarjeta Hero con estructura limpia */
.hero-card {
  background: var(--bg-hero);
  border: 1px solid var(--border-card);
  border-top: 4px solid #2563eb;
  border-radius: var(--radius-xl);
  padding: 22px 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-card);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

/* Etiquetas estructuradas por función: Azul para estudio, Rosa para voz, Cálido para alertas */
.tag-chip {
  font-size: 0.73rem;
  font-weight: 700;
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--study-blue-soft);
  color: var(--study-blue-text);
  border: 1px solid var(--study-blue-border);
}

.tag-chip.rose {
  background: var(--voice-rose-soft);
  color: var(--voice-rose-text);
  border-color: var(--voice-rose-border);
}

.tag-chip.warm {
  background: var(--warm-badge-bg);
  color: var(--warm-alert-title);
  border-color: var(--warm-alert-border);
}

/* Jerarquía de Textos Uniformes */
.hero-card h1 {
  font-size: 1.48rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--text-level-1); /* Nivel 1 */
}

.hero-card p {
  color: var(--text-level-4); /* Nivel 4 */
  font-size: 0.93rem;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 18px 0 12px;
}

.section-header h2 {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--text-level-2); /* Nivel 2 */
}

/* Grid de Tarjetas */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 768px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.persona-card, .scenario-card, .vault-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
}

.persona-card:hover, .scenario-card:hover, .vault-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
  transform: translateY(-2px);
}

.persona-top {
  display: flex;
  align-items: center;
  gap: 14px;
}

.persona-avatar {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.05rem;
  color: #ffffff;
  flex-shrink: 0;
}

.persona-info h3 {
  font-size: 1.06rem;
  font-weight: 800;
  color: var(--text-level-2); /* Nivel 2 uniforme */
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Nivel 3 uniforme (Sin multicolor dentro de la frase) */
.persona-role {
  font-size: 0.8rem;
  color: var(--text-level-3);
  font-weight: 700;
}

/* Nivel 4 uniforme */
.persona-desc {
  font-size: 0.88rem;
  color: var(--text-level-4);
}

.persona-actions {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

/* Botones estructurados por función:
   - Rosa monocromático para Llamadas/Voz
   - Azul monocromático para Estudio/Guardar */
.btn {
  border: none;
  border-radius: 12px;
  padding: 11px 18px;
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--voice-rose-bg);
  color: #ffffff;
  box-shadow: var(--shadow-btn-rose);
  flex: 1;
}

.btn-primary:hover {
  filter: brightness(1.06);
}

.btn-blue {
  background: var(--study-blue-bg);
  color: #ffffff;
  box-shadow: var(--shadow-btn-blue);
}

.btn-secondary {
  background: var(--bg-subtle);
  color: var(--text-level-2);
  border: 1px solid var(--border-card);
}

/* Módulo de Comercio Internacional & Logística + Baking */
.quick-topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.topic-pill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 15px;
  cursor: pointer;
  text-align: left;
  box-shadow: var(--shadow-card);
  transition: all 0.2s ease;
}

.topic-pill-card:hover {
  border-color: #2563eb;
  background: var(--study-blue-soft);
}

.topic-pill-card .topic-icon {
  font-size: 1.4rem;
  margin-bottom: 6px;
  display: block;
}

.topic-pill-card h4 {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text-level-2); /* Nivel 2 */
  margin-bottom: 4px;
}

.topic-pill-card p {
  font-size: 0.78rem;
  color: var(--text-level-5); /* Nivel 5 */
}

/* Chat Box para Trade & Study Hub */
.chat-panel {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  height: 430px;
  overflow: hidden;
}

.chat-messages {
  flex: 1;
  padding: 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-bubble {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 14px;
  font-size: 0.9rem;
  line-height: 1.5;
  white-space: pre-wrap;
}

.chat-bubble.user {
  align-self: flex-end;
  background: var(--study-blue-bg);
  color: #ffffff;
  font-weight: 600;
  border-bottom-right-radius: 4px;
}

.chat-bubble.model {
  align-self: flex-start;
  background: var(--bg-subtle);
  border: 1px solid var(--border-card);
  color: var(--text-level-1);
  border-bottom-left-radius: 4px;
}

.chat-input-row {
  display: flex;
  gap: 10px;
  padding: 12px;
  border-top: 1px solid var(--border-card);
  background: var(--bg-topbar);
}

.chat-input, .input-field {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: 10px;
  padding: 10px 14px;
  color: var(--text-level-1);
  font-size: 0.9rem;
  font-family: inherit;
}

.chat-input:focus, .input-field:focus, textarea:focus {
  outline: none;
  border-color: var(--border-focus);
}

/* Smart Vault */
.vault-filters {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 14px;
}

.filter-chip {
  background: #ffffff;
  border: 1px solid var(--border-card);
  color: var(--text-level-4);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}

.filter-chip.active {
  background: var(--study-blue-bg);
  color: #ffffff;
  border-color: transparent;
}

/* Color uniforme Nivel 2 para la frase del Baúl */
.vault-phrase {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-level-1);
}

.vault-example {
  font-size: 0.84rem;
  font-style: italic;
  color: var(--text-level-5);
  padding-left: 12px;
  border-left: 3px solid #3b82f6;
}

/* Cajas de Alerta Cálida / Correcciones ("Espejo Nativo" y Retos) */
.warm-callout, .upgrade-box {
  background: var(--warm-alert-bg);
  border: 1px solid var(--warm-alert-border);
  border-left: 4px solid var(--warm-alert-border);
  padding: 14px 16px;
  border-radius: 14px;
  margin-bottom: 12px;
}

.warm-title {
  color: var(--warm-alert-title);
  font-weight: 800;
  font-size: 0.88rem;
}

.warm-body {
  color: var(--warm-alert-text);
  font-size: 0.86rem;
}

/* Barra de Navegación Inferior */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 40;
  background: var(--bg-topbar);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-card);
  display: flex;
  justify-content: space-around;
  padding: 8px 10px calc(var(--safe-bottom) + 8px);
}

.nav-item {
  background: none;
  border: none;
  color: var(--text-level-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  padding: 6px 14px;
  border-radius: 12px;
}

.nav-item .nav-icon {
  font-size: 1.22rem;
}

.nav-item.active {
  color: var(--voice-rose-text);
  background: var(--voice-rose-soft);
}

/* Pantalla Completa de Llamada en Vivo (Clara, limpia y en Gris-Azulado Suave) */
.call-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bg-page);
  color: var(--text-level-1);
  display: none;
  flex-direction: column;
  justify-content: space-between;
  padding: calc(var(--safe-top) + 22px) 24px calc(var(--safe-bottom) + 28px);
}

.call-overlay.active {
  display: flex;
}

.call-header {
  text-align: center;
}

.call-status-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  background: var(--study-blue-soft);
  color: var(--study-blue-text);
  border: 1px solid var(--study-blue-border);
  margin-bottom: 8px;
}

.orb-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin: 10px 0;
}

.voice-orb {
  width: 148px;
  height: 148px;
  border-radius: 50%;
  background: var(--voice-rose-bg);
  box-shadow: 0 12px 35px rgba(219, 39, 119, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  font-weight: 800;
  color: #ffffff;
  transition: transform 0.12s ease;
  animation: pulseOrb 3s infinite ease-in-out;
}

@keyframes pulseOrb {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.live-transcript-box {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 16px;
  height: 175px;
  overflow-y: auto;
  font-size: 0.9rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.call-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 22px;
}

.call-btn {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  border: 1px solid var(--border-card);
  font-size: 1.35rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  color: var(--text-level-1);
  box-shadow: var(--shadow-card);
}

.call-btn.mute.muted {
  background: var(--warm-badge-bg);
  border-color: var(--warm-alert-border);
}

.call-btn.hangup {
  width: 70px;
  height: 70px;
  background: #e11d48;
  border: none;
  color: white;
  box-shadow: 0 6px 20px rgba(225, 29, 72, 0.35);
}

/* Modales */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(15, 41, 66, 0.45);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
}

.modal-backdrop.active {
  display: flex;
}

.modal-card {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  max-width: 540px;
  width: 100%;
  max-height: 88dvh;
  overflow-y: auto;
  padding: 24px;
  box-shadow: var(--shadow-card);
  color: var(--text-level-1);
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-level-2);
}

/* Optimización específica para iPhone (Safari iOS) */
@media (max-width: 640px) {
  .topbar {
    padding: 12px 14px;
  }

  .brand-subtitle {
    display: none;
  }

  .main-content {
    padding: 14px;
  }

  .hero-card {
    padding: 18px;
  }

  /* Evita el auto-zoom molesto de Safari en iPhone al tocar cualquier campo de texto */
  .input-field,
  input,
  select,
  textarea {
    font-size: 16px !important;
  }

  .call-controls {
    flex-wrap: wrap;
    justify-content: center;
    padding-bottom: calc(var(--safe-bottom) + 8px);
  }
}