/* HellionAI - Estilos principales */

/* Variables CSS */
:root {
    /* Colores principales */
    --primary-color: #ff4500;
    --primary-dark: #e63900;
    --primary-light: #ff6b33;
    
    /* Colores secundarios (azul) */
    --secondary-color: #1e40af;
    --secondary-dark: #1e3a8a;
    --secondary-light: #3b82f6;
    
    /* Colores de fondo - Modo Oscuro (por defecto) */
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --bg-card: #1e1e1e;
    
    /* Colores de texto - Modo Oscuro */
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #666666;
    
    /* Colores de estado */
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Bordes */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-color: #333333;
    
    /* Transiciones */
    --transition: all 0.3s ease;
}

/* Variables para Modo Claro */
[data-theme="light"] {
    /* Colores de fondo - Modo Claro */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    
    /* Colores de texto - Modo Claro */
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    /* Bordes - Modo Claro */
    --border-color: #e2e8f0;
    
    /* Sombras - Modo Claro */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Reset y base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Utilidades */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
    white-space: nowrap;
}

/* Botón de alternancia de tema */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 16px;
}

.theme-toggle:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

.theme-toggle i {
    transition: var(--transition);
}

/* Animación de rotación para el icono del tema */
.theme-toggle.rotating i {
    animation: rotateIcon 0.3s ease-in-out;
}

@keyframes rotateIcon {
    0% { transform: rotate(0deg); }
    50% { transform: rotate(180deg); }
    100% { transform: rotate(360deg); }
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Página de inicio */
.landing-page {
    min-height: 100vh;
    position: relative;
}

.landing-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 2;
}

.landing-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: rgba(26, 26, 26, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

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

.logo-icon {
    font-size: 32px;
    color: var(--primary-color);
    animation: flicker 2s infinite alternate;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-buttons {
    display: flex;
    gap: 16px;
}

.hero-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 40px;
    text-align: center;
}

.hero-content {
    max-width: 1200px;
    width: 100%;
}

.hero-icon {
    font-size: 80px;
    color: var(--primary-color);
    margin-bottom: 24px;
    animation: float 3s ease-in-out infinite;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin: 48px 0;
}

.feature-card {
    background: var(--bg-card);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-top: 48px;
    flex-wrap: wrap;
}

.landing-footer {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
}

/* Páginas de autenticación */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
}

.auth-container {
    width: 100%;
    max-width: 400px;
    position: relative;
    z-index: 2;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(10px);
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-header h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin: 16px 0 8px;
}

.auth-header p {
    color: var(--text-secondary);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input {
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 69, 0, 0.1);
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.auth-footer p {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Alertas */
.alert {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    font-size: 14px;
    margin-bottom: 16px;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error-color);
    color: #fca5a5;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success-color);
    color: #6ee7b7;
}

/* Dashboard */
.dashboard {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.sidebar {
    width: 300px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 1000;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.new-chat-btn {
    width: 100%;
    margin-bottom: 20px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.new-chat-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* Contenedor de búsqueda */
.search-container {
    margin-bottom: 20px;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    font-size: 14px;
    z-index: 1;
}

.search-input {
    width: 100%;
    padding: 10px 12px 10px 36px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 69, 0, 0.1);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.clear-search-btn {
    position: absolute;
    right: 8px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    font-size: 12px;
    transition: var(--transition);
}

.clear-search-btn:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

/* Estados de filtrado */
.chat-item.hidden {
    display: none;
}

.no-results {
    padding: 16px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    font-style: italic;
}

/* Interfaz de bienvenida estilo ChatGPT */
.welcome-interface {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 40px 20px;
}

.welcome-content {
    max-width: 768px;
    width: 100%;
    text-align: center;
}

.welcome-header {
    margin-bottom: 48px;
}

.welcome-logo {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 16px;
    animation: float 3s ease-in-out infinite;
}

.welcome-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.welcome-input-container {
    margin-bottom: 48px;
}

.welcome-input-wrapper {
    position: relative;
    max-width: 600px;
    margin: 0 auto 24px;
    display: flex;
    align-items: flex-end;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 16px 20px;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.welcome-input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 69, 0, 0.1), var(--shadow-xl);
}

.welcome-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.5;
    resize: none;
    min-height: 24px;
    max-height: 120px;
    font-family: inherit;
    
    padding-top: 6px;   /* 🔧 Ajusta este valor según el centrado deseado */
    padding-bottom: 7px;
}


.welcome-input::placeholder {
    color: var(--text-muted);
}

.welcome-send-btn {
    margin-left: 12px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.welcome-send-btn:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.welcome-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.welcome-controls {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.welcome-control-btn {
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.welcome-control-btn:hover,
.welcome-control-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.welcome-suggestions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.suggestion-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    display: flex;
    align-items: center;
    gap: 12px;
}

.suggestion-card:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.suggestion-card i {
    font-size: 20px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.suggestion-card span {
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.4;
}

.chat-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chat-item {
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-primary);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.chat-item:hover,
.chat-item.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.chat-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 8px;
}

.chat-item h4 {
    font-size: 14px;
    font-weight: 500;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.chat-item p {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 0;
}

.delete-chat-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    font-size: 12px;
    opacity: 0;
    transition: var(--transition);
    flex-shrink: 0;
}

.chat-item:hover .delete-chat-btn {
    opacity: 1;
}

.delete-chat-btn:hover {
    background: var(--error-color);
    color: white;
    transform: scale(1.1);
}

.chat-item.active .delete-chat-btn {
    color: rgba(255, 255, 255, 0.7);
}

.chat-item.active .delete-chat-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    margin-left: 300px;
    width: calc(100% - 300px);
    transition: all 0.3s ease;
}

.chat-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
}

.chat-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 16px;
}

.sidebar-toggle:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

.chat-title {
    font-size: 18px;
    font-weight: 600;
}

/* Estados del sidebar */
.dashboard.sidebar-hidden .sidebar {
    transform: translateX(-100%);
}

.dashboard.sidebar-hidden .main-content {
    margin-left: 0;
    width: 100%;
}

.sidebar {
    transition: transform 0.3s ease;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.message {
    display: flex;
    gap: 12px;
    max-width: 80%;
}

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

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    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 {
    background: var(--bg-card);
    padding: 16px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    line-height: 1.6;
}

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

/* ===== NUEVO: Barra de composición estilo "DeepSeek" ===== */
.chat-input-container {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.chat-input-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

/* ===================== Composer (reemplazo completo) ===================== */

/* Caja principal */
.composer{
  display:grid;
  grid-template-columns:auto 1fr auto;  /* chips | input | derecha (clip+enviar) */
  align-items:center;
  gap:12px;
  background:var(--bg-tertiary);
  border:1px solid var(--border-color);
  border-radius:24px;
  padding:10px 12px;
  transition:var(--transition);
}

.composer:focus-within{
  border-color:var(--primary-color);
  box-shadow:0 0 0 3px rgba(255,69,0,0.1);
}

/* Chips a la izquierda (Razonar / Crear imagen) */
.composer-actions{
  display:flex;
  align-items:center;
  gap:8px;
  padding-left:4px;
  flex-wrap:wrap; /* si no entra, baja ordenadamente */
}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 12px;
  border-radius:9999px;
  border:1px solid var(--border-color);
  background:var(--bg-secondary);
  color:var(--text-secondary);
  font-size:13px;
  cursor:pointer;
  transition:var(--transition);
  white-space:nowrap;
}
.chip i{ font-size:13px; }
.chip:hover{
  background:var(--bg-card);
  color:var(--text-primary);
  transform:translateY(-1px);
}
.chip.active{
  background:var(--primary-color);
  border-color:var(--primary-color);
  color:#fff;
}

/* Textarea central */
.composer-input{
  width:100%;
  background:transparent;
  border:none;
  outline:none;
  color:var(--text-primary);
  font-size:14px;
  line-height:1.4;
  resize:none;
  min-height:24px;
  max-height:120px;
  padding:8px 4px;
  font-family:inherit;
}
.composer-input::placeholder{ color:var(--text-muted); }

/* Lado derecho: clip + enviar */
.composer-right{
  display:flex;
  align-items:center;
  gap:10px;
}

/* Botón clip (adjuntar) */
.attach-btn{
  width:40px;
  height:40px;
  border-radius:50%;
  border:1px solid var(--border-color);
  background:var(--bg-secondary);
  color:var(--text-secondary);
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:var(--transition);
  flex-shrink:0;
}
.attach-btn:hover{
  background:var(--bg-card);
  color:var(--text-primary);
}
.file-input{ display:none; } /* input[type=file] oculto */

/* Botón enviar (azul) */
.composer-send{
  width:40px;
  height:40px;
  border-radius:50%;
  border:none;
  background:var(--secondary-color);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:var(--transition);
  flex-shrink:0;
}
.composer-send:hover{
  background:var(--secondary-dark);
  transform:scale(1.05);
}
.composer-send:disabled{
  opacity:.6;
  cursor:not-allowed;
}

/* Chips de archivos adjuntos (si los mostrás) */
.attached-chips{
  display:inline-flex;
  gap:6px;
  flex-wrap:wrap;
}
.chip-attach{
  padding:6px 8px;
  border-radius:9999px;
  border:1px solid var(--border-color);
  background:var(--bg-secondary);
  color:var(--text-secondary);
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  white-space:nowrap;
}
.chip-attach i{ font-size:12px; }
.chip-attach .chip-remove{
  border:none;
  background:transparent;
  color:var(--text-muted);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  padding:0;
}
.chip-attach .chip-remove:hover{ color:var(--error-color); }

/* Responsive: apilar chips si hace falta */
@media (max-width:768px){
  .composer{
    grid-template-columns:1fr auto;
    grid-template-areas:
      "chips right"
      "input input";
    row-gap:8px;
  }
  .composer-actions{ grid-area:chips; }
  .composer-input{ grid-area:input; }
  .composer-right{ grid-area:right; }
}


@media (max-width: 768px) {
    .landing-header {
        padding: 16px 20px;
        flex-direction: column;
        gap: 16px;
    }
    
    .nav-buttons {
        width: 100%;
        justify-content: center;
    }
    
    .hero-section {
        padding: 40px 20px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .dashboard {
        position: relative;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.mobile-visible {
        transform: translateX(0);
    }
    
    .main-content {
        width: 100% !important;
        margin-left: 0 !important;
    }
    
    .dashboard.sidebar-hidden .sidebar {
        transform: translateX(-100%);
    }
    
    /* Barra de composición en móvil: apilar chips si falta espacio */
    .composer {
        grid-template-columns: 1fr auto;
        grid-template-areas:
          "chips send"
          "input input";
        gap: 8px;
    }
    .composer-actions { grid-area: chips; flex-wrap: wrap; }
    .composer-input { grid-area: input; }
    .composer-send { grid-area: send; }
}

/* Estados de carga */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.typing-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-style: italic;
}

.typing-dots {
    display: flex;
    gap: 4px;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: typingDot 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typingDot {
    0%, 80%, 100% { transform: scale(0); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

/* Animación de fondo */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.flame {
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    filter: blur(40px);
    animation: moveFlame 20s infinite linear;
}

.flame-1 {
    background: radial-gradient(circle, rgba(255, 69, 0, 0.3) 0%, transparent 70%);
    top: 20%;
    left: -100px;
    animation-duration: 25s;
}

.flame-2 {
    background: radial-gradient(circle, rgba(30, 64, 175, 0.2) 0%, transparent 70%);
    top: 60%;
    right: -100px;
    animation-duration: 30s;
    animation-direction: reverse;
}

.flame-3 {
    background: radial-gradient(circle, rgba(255, 69, 0, 0.2) 0%, transparent 70%);
    bottom: 20%;
    left: 50%;
    animation-duration: 35s;
}

@keyframes moveFlame {
    0% { transform: translateX(-100px) translateY(0px) scale(1); }
    25% { transform: translateX(100px) translateY(-50px) scale(1.2); }
    50% { transform: translateX(200px) translateY(0px) scale(1); }
    75% { transform: translateX(100px) translateY(50px) scale(0.8); }
    100% { transform: translateX(-100px) translateY(0px) scale(1); }
}

/* ===== Markdown básico en mensajes ===== */
.message-content strong { font-weight: 700; }
.message-content em { font-style: italic; }

.inline-code {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-color);
  padding: 2px 6px;
  border-radius: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.95em;
}

/* ===== Bloques de código con cabecera y botón copiar ===== */
.code-block {
  margin: 10px 0;
  border: 1px solid var(--border-color);
  background: #0b0b0b;          /* fondo dark */
  border-radius: 10px;
  overflow: hidden;
}
[data-theme="light"] .code-block { background: #f8fafc; }

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  background: rgba(30, 64, 175, 0.15); /* tono azul secundario translúcido */
  border-bottom: 1px solid var(--border-color);
}
.code-lang {
  font-size: 12px;
  font-weight: 600;
  color: var(--secondary-light);
  letter-spacing: 0.04em;
}

.copy-btn {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: var(--transition);
}
.copy-btn:hover {
  background: rgba(255,255,255,0.08);
  color: var(--text-primary);
}
.copy-btn.copied { color: var(--success-color); }

.code-block pre {
  margin: 0;
  padding: 14px;
  overflow: auto;
}
.code-block code {
  display: block;
  white-space: pre;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
  line-height: 1.5;
  color: #e2e8f0;               /* texto code en dark */
}
[data-theme="light"] .code-block code { color: #0f172a; }

/* Globito "Copiado" en header del bloque */
.copy-wrap { position: relative; display: flex; align-items: center; gap: 6px; }
.copy-tip {
  position: absolute;
  right: 40px; top: 50%;
  transform: translateY(-50%);
  background: rgba(16,185,129,0.12);   /* verde suave */
  color: var(--success-color);
  border: 1px solid rgba(16,185,129,0.35);
  padding: 2px 6px;
  font-size: 11px;
  border-radius: 6px;
  opacity: 0; pointer-events: none;
  transition: opacity .18s ease;
}
.copy-tip.show { opacity: 1; }

/* ===== Adjuntos en el composer ===== */
.attachments-preview {
  display: none;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.attachment-item {
  position: relative;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  border-radius: 10px;
  padding: 8px;
  display: flex;
  gap: 8px;
  align-items: center;
}

.attachment-item img {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.file-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  border: 1px dashed var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 18px;
}

.attachment-meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.attachment-name {
  font-size: 13px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 260px;
}

.attachment-size {
  font-size: 11px;
  color: var(--text-muted);
}

.attachment-remove {
  position: absolute;
  top: 6px; right: 6px;
  border: none;
  background: rgba(0,0,0,0.25);
  color: #fff;
  width: 22px; height: 22px;
  border-radius: 50%;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}

.attachment-remove:hover { background: rgba(0,0,0,0.4); }

/* zona de drop */
.drop-hint {
  margin-top: 8px;
  padding: 10px 12px;
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
  border: 1px dashed var(--border-color);
  border-radius: 10px;
  background: var(--bg-tertiary);
}

/* Botón adjuntar (icono clip) a la izquierda del Enviar */
.composer-attach {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.composer-attach:hover {
    background: var(--bg-card);
    color: var(--text-primary);
    transform: scale(1.05);
}

.composer-attach:active {
    transform: scale(0.98);
}

/* Botón con cancel (X) integrado */
.chip.chip-image {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.chip-image #imageGenerationBtnLabel {
  white-space: nowrap;
}
.chip-cancel {
  display: none;              /* visible solo cuando está activo */
  width: 18px;
  height: 18px;
  border-radius: 999px;
  line-height: 18px;
  font-weight: 700;
  font-size: 12px;
  text-align: center;
  cursor: pointer;
  user-select: none;
  background: var(--danger, #e53935);
  color: #fff;
}
.chip-image.active .chip-cancel { display: inline-flex; align-items:center; justify-content:center; }

/* ===== SELECTOR DE RESOLUCIÓN - DISEÑO MODERNO SIMPLIFICADO ===== */
.fan-menu {
  position: fixed;
  z-index: 10000;
  pointer-events: none;
}

.fan-item {
  position: absolute;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.fan-menu.open .fan-item {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

/* Posiciones del abanico - SIMETRICO */
.fan-item:nth-child(1) { transform: translate(-80px, -30px) scale(0.5); }
.fan-item:nth-child(2) { transform: translate(-50px, -60px) scale(0.5); }
.fan-item:nth-child(3) { transform: translate(0px, -70px) scale(0.5); }
.fan-item:nth-child(4) { transform: translate(50px, -60px) scale(0.5); }
.fan-item:nth-child(5) { transform: translate(80px, -30px) scale(0.5); }

.fan-menu.open .fan-item:nth-child(1) { transform: translate(-80px, -30px) scale(1); transition-delay: 0.05s; }
.fan-menu.open .fan-item:nth-child(2) { transform: translate(-50px, -60px) scale(1); transition-delay: 0.1s; }
.fan-menu.open .fan-item:nth-child(3) { transform: translate(0px, -70px) scale(1); transition-delay: 0.15s; }
.fan-menu.open .fan-item:nth-child(4) { transform: translate(50px, -60px) scale(1); transition-delay: 0.2s; }
.fan-menu.open .fan-item:nth-child(5) { transform: translate(80px, -30px) scale(1); transition-delay: 0.25s; }

/* Efectos hover */
.fan-item:hover {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  transform: scale(1.1) !important;
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 12px 30px rgba(255, 69, 0, 0.4);
}

/* Estado activo */
.fan-item.active {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 0 0 3px rgba(255, 69, 0, 0.3), 0 12px 30px rgba(255, 69, 0, 0.4);
  animation: gentle-pulse 2s ease-in-out infinite;
}

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

/* Texto dentro de los círculos */
.fan-item .mini {
  font-size: 10px;
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* Tooltip simple */
.fan-item::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: -35px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s ease;
  border: 1px solid var(--border-color);
  pointer-events: none;
}

.fan-item:hover::after {
  opacity: 1;
}

/* Fondo de overlay cuando el menú está abierto */
.fan-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  z-index: 9999;
  pointer-events: none;
}

.fan-menu.open + .fan-overlay {
  pointer-events: auto;
}

/* Responsive */
@media (max-width: 768px) {
  .fan-item {
    width: 44px;
    height: 44px;
    font-size: 10px;
  }
  
  .fan-item:nth-child(1) { transform: translate(-70px, -25px) scale(0.5); }
  .fan-item:nth-child(2) { transform: translate(-40px, -50px) scale(0.5); }
  .fan-item:nth-child(3) { transform: translate(0px, -60px) scale(0.5); }
  .fan-item:nth-child(4) { transform: translate(40px, -50px) scale(0.5); }
  .fan-item:nth-child(5) { transform: translate(70px, -25px) scale(0.5); }
  
  .fan-menu.open .fan-item:nth-child(1) { transform: translate(-70px, -25px) scale(1); }
  .fan-menu.open .fan-item:nth-child(2) { transform: translate(-40px, -50px) scale(1); }
  .fan-menu.open .fan-item:nth-child(3) { transform: translate(0px, -60px) scale(1); }
  .fan-menu.open .fan-item:nth-child(4) { transform: translate(40px, -50px) scale(1); }
  .fan-menu.open .fan-item:nth-child(5) { transform: translate(70px, -25px) scale(1); }
}