/* --- VARIABLES DE COLORES (MODO OSCURO POR DEFECTO) --- */
:root {
    --bg-color: #0d0e12;
    --card-bg: #16181e;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --accent: #e50914;
    --accent-hover: #f40612;
    --success: #28a745;
    --warning: #ffc107;
    --border-color: #2a2c35;
    --header-bg: #000;

    /* Responsive spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 20px;
    --spacing-lg: 30px;
    --spacing-xl: 50px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    transition: background-color 0.3s, color 0.3s;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* --- CONTENEDOR PRINCIPAL --- */
.container {
    width: 96%; /* Ocupará el 96% del ancho de la pantalla */
    max-width: 1700px; /* Límite máximo mucho más amplio para monitores grandes */
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* =========================================
   CABECERA
========================================= */
.header {
    background-color: var(--header-bg);
    padding: 18px 0;
    border-bottom: 2px solid #222;
    margin-bottom: var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.logo-area h1 {
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    line-height: 1.1;
}
.logo-area h1 span { color: var(--accent); }
.logo-area p {
    color: var(--text-muted);
    margin-top: 3px;
    font-size: clamp(0.75rem, 2vw, 0.95rem);
}

/* Botón de Tema */
.btn-tema {
    background-color: #1a1c23;
    color: white;
    border: 1px solid #333;
    padding: 9px 18px;
    border-radius: 20px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    transition: 0.3s;
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
    flex-shrink: 0;
}
.btn-tema:hover { background-color: #2a2c35; border-color: #444; }

/* Título de sección */
.seccion-titulo {
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    font-size: clamp(1.1rem, 3vw, 1.5rem);
}

/* =========================================
   BARRA DE FILTROS
========================================= */
.barra-filtros {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--card-bg);
    padding: 14px 20px;
    border-radius: 12px;
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-color);
    gap: 12px;
    flex-wrap: wrap;
}

.buscador-grupo {
    display: flex;
    gap: 12px;
    flex-grow: 1;
    flex-wrap: wrap;
    min-width: 0;
}

.buscador-grupo input,
.buscador-grupo select {
    background-color: #08090b;
    border: 1px solid #333;
    color: white;
    padding: 10px 14px;
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    outline: none;
    font-size: 0.9rem;
    transition: border-color 0.2s;
}

.buscador-grupo input {
    flex: 1;
    min-width: 140px;
    max-width: 320px;
}

.buscador-grupo select {
    min-width: 140px;
    flex: 1;
    max-width: 220px;
}

.buscador-grupo input:focus,
.buscador-grupo select:focus { border-color: var(--accent); }

.moneda-grupo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.label-moneda { color: var(--text-muted); font-size: 0.85rem; white-space: nowrap; }

.btn-moneda {
    background-color: transparent;
    color: var(--text-muted);
    border: 1px solid #333;
    padding: 8px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    transition: 0.3s;
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
}

.btn-moneda.active,
.btn-moneda:hover {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent);
}

/* =========================================
   INDICADOR DE ACTUALIZACIÓN EN VIVO
========================================= */
.live-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--success);
    background: rgba(40, 167, 69, 0.1);
    border: 1px solid rgba(40, 167, 69, 0.25);
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 600;
    margin-left: 10px;
    vertical-align: middle;
}

.live-dot {
    width: 7px;
    height: 7px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse-dot 1.8s infinite;
    flex-shrink: 0;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.7); }
}

/* =========================================
   GRILLA DE PRODUCTOS
========================================= */
.grid-productos {
    display: grid;
    grid-template-columns: repeat(6, 1fr); /* Fuerza exactamente 6 columnas del mismo tamaño */
    gap: 28px;
    padding-bottom: var(--spacing-xl);
}
/* =========================================
   CARDS DE PRODUCTOS
========================================= */
.card {
    background-color: var(--card-bg);
    border-radius: 14px;
    padding: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s;
    display: flex;
    flex-direction: column;
    height: 100%; /* <--- ESTO ES VITAL: Fuerza a todas las tarjetas a tener la misma altura */
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    animation: fadeInCard 0.4s ease both;
}

@keyframes fadeInCard {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.55);
    border-color: #3a3c45;
}

/* Etiqueta de Variedad */
.card-variedad {
    position: absolute;
    top: 12px;
    right: 12px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 5px 10px;
    border-radius: 8px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    backdrop-filter: blur(4px);
    z-index: 2;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Imagen del producto */
.card-img {
    width: 100%;
    height: 124px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 8px;
    background-color: #000;
    border: 1px solid #222;
}

/* Categoría y Título */
.categoria {
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 5px;
    display: block;
}

.card h3 {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    margin-bottom: 14px;
    line-height: 1.3;
}

/* Badges */
.badges { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-formato { background-color: #2a2c35; color: #eee; border: 1px solid #444; }
.badge-auto { background-color: rgba(40,167,69,.15); color: var(--success); border: 1px solid rgba(40,167,69,.3); }
.badge-manual { background-color: rgba(255,193,7,.15); color: var(--warning); border: 1px solid rgba(255,193,7,.3); }

/* Precios */
.precio-container {
    margin-top: auto; /* <--- LA MAGIA: Empuja esta caja y el botón hacia el fondo */
    margin-bottom: 14px;
    padding: 12px 0;
    border-top: 1px solid #2a2c35;
    border-bottom: 1px solid #2a2c35;
}
.original-bloque { display: flex; align-items: center; margin-bottom: 4px; gap: 8px; flex-wrap: wrap; }
.precio-original { color: var(--text-muted); text-decoration: line-through; font-size: 0.85rem; }
.descuento-tag {
    color: var(--success);
    font-weight: 700;
    font-size: 0.8rem;
    background-color: rgba(40,167,69,.1);
    padding: 2px 6px;
    border-radius: 4px;
}
.precio-final {
    font-size: clamp(1.5rem, 4vw, 1.9rem);
    font-weight: 700;
    margin: 3px 0;
}
.precio-final small { font-size: 0.85rem; font-weight: 400; color: var(--text-muted); margin-left: 4px; }
.renovacion { color: var(--text-muted); font-size: 0.82rem; }

/* Botón Comprar */
.btn-comprar {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 13px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: auto;
    transition: background-color 0.2s, transform 0.1s;
    text-align: center;
    width: 100%;
    /* Área táctil mínima recomendada */
    min-height: 48px;
    touch-action: manipulation;
}
.btn-comprar:hover { background-color: var(--accent-hover); }
.btn-comprar:active { transform: scale(0.98); }

.btn-agotado {
    background-color: #0A0A0A !important;
    color: #555 !important;
    cursor: not-allowed !important;
    box-shadow: none !important;
}
.btn-agotado:hover {
    background-color: #000 !important;
    transform: none !important;
}

.loader {
    text-align: center;
    color: var(--text-muted);
    font-size: 1rem;
    grid-column: 1 / -1;
    padding: 50px 20px;
}

/* =========================================
   FOOTER
========================================= */
.main-footer {
    background-color: var(--header-bg);
    padding: 24px 0;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
}
.container-footer { text-align: center; }
.main-footer p { color: var(--text-muted); font-size: 0.82rem; margin: 0; }

/* =========================================
   MODO CLARO
========================================= */
body.light-mode {
    --bg-color: #f0f2f5;
    --card-bg: #ffffff;
    --text-main: #1a1a1a;
    --text-muted: #5f6368;
    --border-color: #dadce0;
    --header-bg: #ffffff;
}

body.light-mode .header { border-bottom: 2px solid #e0e0e0; }
body.light-mode .btn-tema { background-color: #f1f3f4; color: #202124; border-color: #dadce0; }
body.light-mode .btn-tema:hover { background-color: #e8eaed; }
body.light-mode .card,
body.light-mode .barra-filtros { box-shadow: 0 2px 8px rgba(0,0,0,0.07); }
body.light-mode .buscador-grupo input,
body.light-mode .buscador-grupo select { background-color: #fff; border: 1px solid #dadce0; color: #202124; }
body.light-mode .btn-moneda { border-color: #dadce0; color: #5f6368; }
body.light-mode .btn-moneda.active { background-color: var(--accent); color: white; border-color: var(--accent); }
body.light-mode .badge-formato { background-color: #f1f3f4; color: #202124; border-color: #dadce0; }
body.light-mode .card-variedad { background-color: rgba(0,0,0,0.06); color: #1a1a1a; }
body.light-mode .precio-container { border-color: #dadce0; }

/* =========================================
   RESPONSIVIDAD
========================================= */

/* --- LAPTOPS MEDIANOS (max 1200px) --- */
@media (max-width: 1200px) {
    .grid-productos {
        grid-template-columns: repeat(4, 1fr); /* Baja a 4 productos en laptops pequeñas */
        gap: 20px;
    }
}

/* --- TABLETS (max 992px) --- */
@media (max-width: 992px) {
    .grid-productos {
        grid-template-columns: repeat(3, 1fr); /* Baja a 3 productos en tablets */
        gap: 18px;
    }

    .barra-filtros {
        padding: 12px 16px;
    }

    .buscador-grupo input {
        max-width: 100%;
    }
}

/* --- TABLETS PEQUEÑAS Y MÓVILES GRANDES (max 768px) --- */
@media (max-width: 768px) {
    :root {
        --spacing-md: 15px;
        --spacing-lg: 20px;
    }

    .header {
        padding: 14px 0;
        margin-bottom: var(--spacing-lg);
    }

    .header-content {
        justify-content: space-between;
        flex-wrap: nowrap;
    }

    .logo-area p { display: none; } /* Ocultar subtítulo en móvil para ahorrar espacio */

    .barra-filtros {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding: 14px;
    }

    .buscador-grupo {
        flex-direction: column;
        gap: 8px;
    }

    .buscador-grupo input,
    .buscador-grupo select {
        max-width: 100%;
        width: 100%;
        padding: 12px 14px;
        font-size: 1rem; /* Evita zoom en iOS */
    }

    .moneda-grupo {
        justify-content: space-between;
        padding-top: 4px;
        border-top: 1px solid var(--border-color);
    }

    .btn-moneda {
        flex: 1;
        text-align: center;
        padding: 10px;
    }

    /* Grid de 2 columnas en tablets medianas */
    .grid-productos {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .card {
        padding: 14px;
    }

    .card-img { height: 130px; }

    .card h3 { font-size: 0.95rem; margin-bottom: 10px; }

    .badges { gap: 6px; margin-bottom: 10px; }
    .badge { font-size: 0.7rem; padding: 4px 8px; }

    .precio-container { margin: 10px 0; padding: 10px 0; }
    .precio-final { font-size: 1.4rem; }

    .card-variedad { font-size: 0.65rem; padding: 4px 8px; max-width: 90px; }
}

/* --- MÓVILES PEQUEÑOS (max 480px) --- */
@media (max-width: 480px) {
    .header-content { gap: 10px; }

    /* Una sola columna en móviles pequeños */
    .grid-productos {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .card {
        padding: 16px;
        border-radius: 12px;
    }

    .card-img { height: 180px; } /* Más alta en 1 columna, aprovecha el ancho */

    .card h3 { font-size: 1.1rem; }

    .precio-final { font-size: 1.7rem; }

    .btn-comprar {
        font-size: 1rem;
        padding: 14px;
    }
}

/* --- MÓVILES MUY PEQUEÑOS (max 360px) --- */
@media (max-width: 360px) {
    .container { padding: 0 12px; }
    .card-img { height: 150px; }
    .precio-final { font-size: 1.5rem; }
    .logo-area h1 { font-size: 1.3rem; }
}

/* =========================================
   MODAL DE COMPRA (CLIENTE)
========================================= */
.modal-cliente {
    display: none; position: fixed; z-index: 9999; left: 0; top: 0;
    width: 100%; height: 100%; background-color: rgba(0,0,0,0.75);
    backdrop-filter: blur(5px); justify-content: center; align-items: center;
    padding: 20px;
}
.modal-cliente-content {
    background-color: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: 14px; width: 100%; max-width: 400px; padding: 24px;
    animation: fadeInCard 0.3s ease; box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.modal-cliente-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 15px; border-bottom: 1px solid var(--border-color); padding-bottom: 10px;
}
.modal-cliente-header h3 { font-size: 1.2rem; color: var(--text-main); }
.cerrar-modal-cliente {
    font-size: 1.5rem; color: var(--text-muted); cursor: pointer; transition: 0.2s;
}
.cerrar-modal-cliente:hover { color: var(--accent); }
.input-grupo-cliente label {
    display: block; margin-bottom: 8px; font-weight: 600; font-size: 0.9rem; color: var(--text-main);
}
.input-grupo-cliente input {
    width: 100%; padding: 12px 14px; border-radius: 8px;
    background-color: #08090b; border: 1px solid #333; color: white;
    font-family: 'Poppins', sans-serif; font-size: 1rem; outline: none;
}
.input-grupo-cliente input:focus { border-color: var(--accent); }

/* Ajuste Modal para Modo Claro */
body.light-mode .modal-cliente-content { background-color: #fff; }
body.light-mode .input-grupo-cliente input { background-color: #fff; border-color: #dadce0; color: #1a1a1a; }