/* ===========================================
   Chat TaikoFM - Estilos CSS
   Basado en el estilo visual de Taiko Solutions
   =========================================== */

/* Variables CSS - Estilo Taiko Solutions */
:root {
  --primary-color: #e85a4f;
  --primary-dark: #c9453b;
  --primary-light: #f07167;
  --secondary-color: #333333;
  --danger-color: #e74c3c;
  --warning-color: #f39c12;
  --success-color: #27ae60;
  --info-color: #3498db;

  --text-color: #333333;
  --text-muted: #888888;
  --bg-color: #fafafa;
  --card-bg: #ffffff;
  --border-color: #eeeeee;

  --font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --border-radius: 3px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 2px 8px rgba(0, 0, 0, 0.1);

  --chat-user-bg: #e85a4f;
  --chat-user-color: #ffffff;
  --chat-assistant-bg: #ffffff;
  --chat-assistant-color: #333333;
  --chat-tool-bg: #f8f9fa;

  --sidebar-width: 260px;
  --navbar-height: 56px;
}

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

html, body {
  height: 100%;
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

/* ===========================================
   Layout Principal
   =========================================== */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh; /* Viewport dinámico para móviles */
}

/* ===========================================
   Navbar
   =========================================== */
.navbar {
  background: #ffffff;
  color: var(--text-color);
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--navbar-height);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

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

.navbar-logo {
  height: 28px;
  width: auto;
}

.navbar-brand h1 {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 1px;
}

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

.navbar-user {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===========================================
   Login
   =========================================== */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 1rem;
}

.login-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 380px;
  padding: 2rem;
}

.login-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.login-logo {
  height: 45px;
  width: auto;
  margin-bottom: 0.75rem;
}

.login-header h1 {
  color: var(--text-color);
  font-size: 1.4rem;
  font-weight: 300;
  letter-spacing: 1px;
  margin-bottom: 0.25rem;
}

.login-header p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ===========================================
   Formularios
   =========================================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.form-group label {
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--text-color);
}

.form-group input,
.form-group select {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 16px; /* 16px evita zoom automático en iOS */
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* ===========================================
   Botones
   =========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.25rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  width: 100%;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-dark);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-color);
  font-size: 0.8rem;
  padding: 0.4rem 0.75rem;
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--bg-color);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.btn-sm {
  padding: 0.35rem 0.6rem;
  font-size: 0.75rem;
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  color: var(--text-muted);
  font-size: 1.1rem;
  border-radius: var(--border-radius);
  transition: all 0.2s;
  -webkit-tap-highlight-color: transparent;
}

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

/* ===========================================
   Chat Layout
   =========================================== */
.chat-container {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar de conversaciones */
.chat-sidebar {
  width: var(--sidebar-width);
  background: var(--card-bg);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-header .btn {
  width: 100%;
}

.conversations-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
  -webkit-overflow-scrolling: touch;
}

.conversation-item {
  padding: 0.6rem 0.75rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background 0.2s;
  margin-bottom: 0.25rem;
}

.conversation-item:hover {
  background: var(--bg-color);
}

.conversation-item.active {
  background: var(--bg-color);
  border-left: 3px solid var(--primary-color);
}

.conversation-title {
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conversation-date {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Selector de modelo */
.model-selector {
  padding: 0.75rem;
  border-top: 1px solid var(--border-color);
}

.model-selector select {
  width: 100%;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 0.8rem;
  background: white;
}

.model-selector label {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
  display: block;
}

/* Overlay para cerrar sidebar en móvil */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 99;
}

/* ===========================================
   Área de Chat
   =========================================== */
.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  -webkit-overflow-scrolling: touch;
}

/* Welcome screen */
.chat-welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  text-align: center;
  padding: 2rem;
}

.chat-welcome h2 {
  font-weight: 300;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.chat-welcome p {
  font-size: 0.9rem;
  max-width: 400px;
}

/* ===========================================
   Mensajes
   =========================================== */
.message {
  display: flex;
  gap: 0.75rem;
  max-width: 85%;
}

.message-user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.message-assistant {
  align-self: flex-start;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.message-user .message-avatar {
  background: var(--primary-color);
  color: white;
}

.message-assistant .message-avatar {
  background: var(--secondary-color);
  color: white;
}

.message-content {
  padding: 0.75rem 1rem;
  border-radius: 12px;
  line-height: 1.5;
  font-size: 0.9rem;
  overflow-x: auto;
}

.message-user .message-content {
  background: var(--chat-user-bg);
  color: var(--chat-user-color);
  border-bottom-right-radius: 4px;
}

.message-assistant .message-content {
  background: var(--chat-assistant-bg);
  color: var(--chat-assistant-color);
  border-bottom-left-radius: 4px;
  box-shadow: var(--shadow);
}

/* Markdown dentro de mensajes del asistente */
.message-assistant .message-content h1,
.message-assistant .message-content h2,
.message-assistant .message-content h3 {
  margin: 0.75rem 0 0.5rem;
  font-weight: 600;
}

.message-assistant .message-content h1 { font-size: 1.2rem; }
.message-assistant .message-content h2 { font-size: 1.1rem; }
.message-assistant .message-content h3 { font-size: 1rem; }

.message-assistant .message-content p {
  margin: 0.4rem 0;
}

.message-assistant .message-content ul,
.message-assistant .message-content ol {
  margin: 0.4rem 0;
  padding-left: 1.5rem;
}

.message-assistant .message-content code {
  background: #f0f0f0;
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-size: 0.85em;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.message-assistant .message-content pre {
  background: #1e1e1e;
  color: #d4d4d4;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  overflow-x: auto;
  margin: 0.5rem 0;
}

.message-assistant .message-content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.message-assistant .message-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.5rem 0;
  font-size: 0.85rem;
}

.message-assistant .message-content table th,
.message-assistant .message-content table td {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border-color);
  text-align: left;
}

.message-assistant .message-content table th {
  background: var(--bg-color);
  font-weight: 600;
}

/* Tool call indicator */
.tool-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--chat-tool-bg);
  border-radius: var(--border-radius);
  border-left: 3px solid var(--info-color);
  font-size: 0.8rem;
  color: var(--text-muted);
  align-self: flex-start;
  max-width: 85%;
}

.tool-indicator.running {
  border-left-color: var(--warning-color);
}

.tool-indicator.done {
  border-left-color: var(--success-color);
}

.tool-indicator.error {
  border-left-color: var(--danger-color);
}

.tool-name {
  font-weight: 600;
  color: var(--text-color);
}

/* Typing indicator */
.typing-indicator {
  display: flex;
  gap: 0.3rem;
  padding: 0.5rem;
  align-self: flex-start;
}

.typing-indicator span {
  width: 6px;
  height: 6px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: typing 1.2s infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-4px); }
}

/* ===========================================
   Input de Chat
   =========================================== */
.chat-input-container {
  padding: 0.75rem 1rem 1rem;
  border-top: 1px solid var(--border-color);
  background: var(--card-bg);
}

.chat-input-wrapper {
  display: flex;
  gap: 0.5rem;
  align-items: flex-end;
  max-width: 800px;
  margin: 0 auto;
}

.chat-input {
  flex: 1;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 16px; /* 16px evita zoom automático en iOS */
  font-family: var(--font-family);
  resize: none;
  min-height: 40px;
  max-height: 150px;
  line-height: 1.4;
}

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

.chat-send-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  width: 44px;
  height: 44px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}

.chat-send-btn:hover:not(:disabled) {
  background: var(--primary-dark);
}

.chat-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===========================================
   Error
   =========================================== */
.error-message {
  background-color: #f8d7da;
  color: var(--danger-color);
  padding: 0.6rem 0.75rem;
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

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

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }

/* ===========================================
   Responsive — Tablet (≤ 768px)
   =========================================== */
@media (max-width: 768px) {
  /* Sidebar se oculta y aparece como panel lateral flotante */
  .chat-sidebar {
    display: none;
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    z-index: 100;
    box-shadow: var(--shadow-lg);
  }

  .chat-sidebar.open {
    display: flex;
  }

  .sidebar-overlay.open {
    display: block;
  }

  /* Navbar compacta */
  .navbar {
    padding: 0 0.75rem;
  }

  .navbar-brand h1 {
    font-size: 0.9rem;
  }

  /* Mensajes más anchos */
  .chat-messages {
    padding: 0.75rem;
  }

  .message {
    max-width: 92%;
  }

  .tool-indicator {
    max-width: 92%;
  }

  /* Input más compacto */
  .chat-input-container {
    padding: 0.5rem 0.75rem 0.75rem;
  }
}

/* ===========================================
   Responsive — Móvil (≤ 480px)
   =========================================== */
@media (max-width: 480px) {
  :root {
    --navbar-height: 48px;
    --sidebar-width: 85vw;
  }

  /* Navbar ultra compacta */
  .navbar {
    padding: 0 0.5rem;
    gap: 0.25rem;
  }

  .navbar-brand h1 {
    font-size: 0.8rem;
    display: none; /* Ocultar título, dejar solo logo */
  }

  .navbar-logo {
    height: 24px;
  }

  .navbar-user {
    font-size: 0.7rem;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .btn-outline.btn-sm {
    font-size: 0.7rem;
    padding: 0.3rem 0.5rem;
  }

  /* Login adaptado */
  .login-card {
    padding: 1.5rem;
    box-shadow: none;
    border: 1px solid var(--border-color);
  }

  .login-header h1 {
    font-size: 1.2rem;
  }

  /* Mensajes: sin avatar en móvil para ganar espacio */
  .message-avatar {
    width: 24px;
    height: 24px;
    font-size: 0.65rem;
  }

  .message {
    gap: 0.5rem;
    max-width: 95%;
  }

  .message-content {
    padding: 0.6rem 0.75rem;
    font-size: 0.85rem;
  }

  /* Tablas con scroll horizontal */
  .message-assistant .message-content table {
    font-size: 0.75rem;
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .message-assistant .message-content table th,
  .message-assistant .message-content table td {
    padding: 0.3rem 0.5rem;
  }

  /* Input área */
  .chat-input-container {
    padding: 0.4rem 0.5rem;
    /* Padding inferior extra para safe area en iPhone */
    padding-bottom: max(0.5rem, env(safe-area-inset-bottom));
  }

  .chat-send-btn {
    width: 40px;
    height: 40px;
  }

  /* Tool indicators compactos */
  .tool-indicator {
    font-size: 0.75rem;
    padding: 0.4rem 0.6rem;
    max-width: 95%;
  }

  /* Bienvenida compacta */
  .chat-welcome h2 {
    font-size: 1.2rem;
  }

  .chat-welcome p {
    font-size: 0.8rem;
  }
}

/* ===========================================
   Safe areas para iPhone con notch
   =========================================== */
@supports (padding: max(0px)) {
  .navbar {
    padding-left: max(0.75rem, env(safe-area-inset-left));
    padding-right: max(0.75rem, env(safe-area-inset-right));
  }

  .chat-input-container {
    padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
  }
}