/* ============================================
   VARIABLES CSS PARA TEMA CLARO Y OSCURO
   ============================================ */

/* Tema claro (por defecto) */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --text-primary: #333333;
    --text-secondary: #6c757d;
    --border-color: #e9ecef;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-search: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --input-bg: #ffffff;
    --card-footer-bg: transparent;
    --spinner-border: #f3f3f3;
    --spinner-top: #667eea;
}

/* Tema oscuro */
body.dark-theme {
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --bg-card: #2d3748;
    --text-primary: #e2e8f0;
    --text-secondary: #a0aec0;
    --border-color: #4a5568;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.4);
    --gradient-primary: linear-gradient(135deg, #4c51bf 0%, #667eea 100%);
    --gradient-search: linear-gradient(135deg, #2b6cb0 0%, #3182ce 100%);
    --input-bg: #2d3748;
    --card-footer-bg: #2d3748;
    --spinner-border: #4a5568;
    --spinner-top: #4c51bf;
}

/* ============================================
   ESTILOS BASE ACTUALIZADOS
   ============================================ */

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Contenedor principal */
.container-fluid {
    background-color: var(--bg-primary);
}

/* ============================================
   BARRA DE BÚSQUEDA
   ============================================ */

.input-group {
    background: var(--gradient-search) !important;
    box-shadow: 0 10px 30px var(--shadow) !important;
}

.form-control {
    background-color: var(--input-bg) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

    .form-control:focus {
        background-color: var(--input-bg) !important;
        color: var(--text-primary) !important;
        border-color: var(--border-color) !important;
        box-shadow: 0 8px 35px var(--shadow-hover) !important;
    }

    .form-control::placeholder {
        color: var(--text-secondary) !important;
    }

/* ============================================
   TARJETAS
   ============================================ */

.card {
    background-color: var(--bg-card) !important;
    border-color: var(--border-color) !important;
    box-shadow: 0 10px 30px var(--shadow) !important;
}

    .card:hover {
        box-shadow: 0 20px 40px var(--shadow-hover) !important;
    }

.card-header {
    background: var(--gradient-primary) !important;
    border-color: var(--border-color) !important;
    color: white !important;
}

.card-body {
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
}

.card-footer {
    background-color: var(--card-footer-bg) !important;
    border-color: var(--border-color) !important;
}

/* ============================================
   RADIO BUTTONS MODERNOS
   ============================================ */

.form-check-label {
    background: var(--bg-card) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

    .form-check-label:hover {
        border-color: #667eea !important;
        color: #667eea !important;
    }

body.dark-theme .form-check-label:hover {
    border-color: #4c51bf !important;
    color: #f6b297 !important;
}

.form-check-input:checked + .form-check-label {
    background: var(--gradient-primary) !important;
    border-color: #667eea !important;
    color: white !important;
}

/* ============================================
   PRODUCTOS
   ============================================ */

.card.h-100 {
    background-color: var(--bg-card) !important;
}

.card-body h5 {
    color: var(--text-primary) !important;
}

.card-body span {
    color: var(--text-primary) !important;
}

.text-danger {
    color: #e53e3e !important;
}

/* Precio de oferta en modo oscuro */
body.dark-theme .card-body span.text-danger + span {
    color: #48bb78 !important;
}

/* Precio normal */
body.dark-theme .card-body span:not(.text-danger) {
    color: #48bb78 !important;
}

/* ============================================
   SPINNER DE CARGA
   ============================================ */

.spinner-border {
    border-color: var(--spinner-border) !important;
    border-top-color: var(--spinner-top) !important;
}

/* ============================================
   BOTONES
   ============================================ */

.btn-outline-dark {
    color: var(--text-primary) !important;
    border-color: var(--text-primary) !important;
    background-color: transparent !important;
}

    .btn-outline-dark:hover {
        background-color: var(--text-primary) !important;
        border-color: var(--text-primary) !important;
        color: var(--bg-primary) !important;
    }

/* ============================================
   CHATBOT EN MODO OSCURO
   ============================================ */

body.dark-theme .chatbot-wrapper {
    background: var(--bg-card) !important;
    box-shadow: 0 8px 25px var(--shadow) !important;
}

body.dark-theme .chatbot-header {
    background: var(--gradient-primary) !important;
}

body.dark-theme .chat-content,
body.dark-theme .chat-container {
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
}

body.dark-theme .input-container {
    background: var(--bg-secondary) !important;
}

    body.dark-theme .input-container input {
        background-color: var(--input-bg) !important;
        border-color: var(--border-color) !important;
        color: var(--text-primary) !important;
    }

        body.dark-theme .input-container input:focus {
            border-color: #4c51bf !important;
        }

body.dark-theme .bot-message {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

body.dark-theme .conversation-info {
    background: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-secondary) !important;
}

/* ============================================
   CARRITO EN MODO OSCURO
   ============================================ */

body.dark-theme .table {
    color: var(--text-primary) !important;
}

body.dark-theme .table-bordered {
    border-color: var(--border-color) !important;
}

    body.dark-theme .table-bordered th,
    body.dark-theme .table-bordered td {
        border-color: var(--border-color) !important;
    }

body.dark-theme .bg-light {
    background-color: var(--bg-secondary) !important;
}

body.dark-theme .table-dark {
    background-color: var(--bg-primary) !important;
}

/* ============================================
   ALERTAS
   ============================================ */

body.dark-theme .alert-warning {
    background-color: #744210 !important;
    border-color: #975a16 !important;
    color: #fbd38d !important;
}

body.dark-theme .alert-danger {
    background-color: #742a2a !important;
    border-color: #9c4221 !important;
    color: #fed7d7 !important;
}

body.dark-theme .alert-info {
    background-color: #2a4365 !important;
    border-color: #3182ce !important;
    color: #bee3f8 !important;
}

/* ============================================
   DETALLES DE PRODUCTO
   ============================================ */

body.dark-theme .display-5 {
    color: var(--text-primary) !important;
}

body.dark-theme .lead {
    color: var(--text-secondary) !important;
}

body.dark-theme .fs-5 {
    color: var(--text-primary) !important;
}

/* ============================================
   RESPONSIVE UPDATES
   ============================================ */

@media (max-width: 768px) {
    body.dark-theme .input-group {
        background: var(--gradient-search) !important;
    }
}

/* ============================================
   TRANSICIONES SUAVES
   ============================================ */

* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Excluir elementos con animaciones específicas */
.card:hover,
.form-check-label:hover,
.btn:hover,
.spinner-border {
    transition: all 0.3s ease;
}

/* ============================================
   NAVMENU MODO OSCURO
   ============================================ */

body.dark-theme .navbar {
    background-color: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border-color) !important;
    box-shadow: 0 2px 10px var(--shadow) !important;
}

    body.dark-theme .navbar .nav-link {
        color: var(--text-primary) !important;
    }

        body.dark-theme .navbar .nav-link:hover {
            color: #f6b297 !important; /* Modif */
        }

body.dark-theme .navbar-brand {
    color: var(--text-primary) !important;
}

body.dark-theme .navbar-toggler {
    border-color: var(--border-color) !important;
}

body.dark-theme .navbar-text {
    color: var(--text-primary) !important;
}