/* =========================================
   1. BASE Y VARIABLES
   ========================================= */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary: #0056B3;        /* Azul Profesional */
    --secondary: #00C2A8;      /* Verde Tecnológico */
    --dark: #1a1d20;           /* Gris Oxford Profundo */
    --light: #F8F9FA;          /* Fondo Claro */
    --text: #343A40;           /* Gris de texto */
    --whatsapp: #25D366;       /* Verde WhatsApp */
    --accent: #FFC107;         /* Ámbar para Garantía/Alertas */
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* =========================================
   2. HEADER (Top Bar Semántico)
   ========================================= */
.main-header {
    background-color: var(--dark);
    color: #ffffff;
    padding: 10px 0;
    font-size: 0.85rem;
    border-bottom: 1px solid #343a40;
}

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

.brand {
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
}

.brand .divider {
    margin: 0 10px;
    color: var(--secondary);
    font-weight: bold;
}

.contact-nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-link {
    color: #e9ecef;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: var(--secondary);
}

.whatsapp-badge {
    background-color: var(--whatsapp);
    color: #ffffff;
    text-decoration: none;
    padding: 5px 15px;
    border-radius: 50px;
    font-weight: 600;
    transition: transform 0.2s ease, background-color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.whatsapp-badge:hover {
    background-color: #1da851;
    transform: translateY(-2px);
    color: #fff;
}

/* =========================================
   3. BANNER HERO
   ========================================= */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #003d80 100%);
    color: white;
    padding: 80px 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
}

.hero-text h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.highlight {
    color: var(--secondary);
}

.hero-text p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.btn-primary {
    display: inline-block;
    padding: 15px 35px;
    background-color: var(--secondary);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    text-align: center;
    max-width: 200px;
    transition: 0.3s;
}

.btn-primary:hover {
    background-color: #00a892;
    transform: scale(1.05);
}

.warranty-badge {
    font-size: 0.95rem;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

/* =========================================
   4. SECCIÓN VENTAJAS (Features)
   ========================================= */
.features {
    background: white;
    padding: 60px 0;
    margin-top: -40px;
    position: relative;
    z-index: 10;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-item {
    background: var(--light);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: 0.3s;
    border-bottom: 4px solid transparent;
}

.feature-item:hover {
    border-bottom: 4px solid var(--secondary);
    transform: translateY(-10px);
}

.feature-item i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.feature-item h3 {
    margin-bottom: 10px;
    color: var(--dark);
}

/* =========================================
   5. CATÁLOGO Y FILTROS
   ========================================= */
.catalog-section {
    display: flex;
    gap: 30px;
    padding: 60px 0;
}

.sidebar {
    flex: 0 0 260px;
    background: var(--dark); /* Color Oxford */
    color: #ffffff; /* Texto blanco */
    padding: 30px;
    border-radius: 12px;
    height: fit-content;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.sidebar h2 {
    color: #ffffff; /* Título blanco */
    font-size: 1.5rem;
    margin-bottom: 25px;
    border-bottom: 2px solid var(--secondary); /* Línea verde */
    padding-bottom: 15px;
}

.filter-group h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--secondary); /* Subtítulos en verde azulado */
    font-weight: 600;
}

.filter-group label {
    display: block;
    margin-bottom: 12px;
    font-size: 0.95rem;
    cursor: pointer;
    color: #e0e0e0; /* Gris muy claro para leer fácil */
    transition: color 0.2s;
}

.filter-group label:hover {
    color: #ffffff;
}

/* Ajuste para el input de búsqueda dentro del sidebar oscuro */
#searchInput {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid #444;
    color: white;
}
#searchInput::placeholder {
    color: #aaa;
}

.products-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

/* =========================================
   6. TARJETAS DE PRODUCTO
   ========================================= */
.product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    display: flex;
    flex-direction: column;
    transition: 0.3s;
}

.product-card:hover {
    transform: translateY(-8px);
}

.product-image {
    width: 100%;
    height: 220px; /* Un poco más alta para que luzca */
    background: #ffffff; /* Fondo blanco puro */
    padding: 10px; /* Espacio para que no toque los bordes */
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid #f0f0f0; /* Separación sutil */
}

.product-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain; /* IMPORTANTE: Muestra todo el equipo sin recortarlo */
    transition: transform 0.3s ease;
}

.product-details {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-type {
    color: var(--secondary);
    font-weight: bold;
    font-size: 0.8rem;
    text-transform: uppercase;
    margin-bottom: 5px;
}

.product-title {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.specs-list {
    list-style: none;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.specs-list li {
    margin-bottom: 5px;
}

.specs-list i {
    color: var(--secondary);
    margin-right: 8px;
}

.product-classification {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: bold;
    margin-bottom: 15px;
    align-self: flex-start;
}

/* Colores de Clasificación */
.basic { background: #d1ecf1; color: #0c5460; }
.office { background: #d4edda; color: #155724; }
.high-performance { background: #fff3cd; color: #856404; }

.product-price {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--dark);
    margin-bottom: 15px;
}

.whatsapp-btn {
    background: var(--whatsapp);
    color: white;
    text-align: center;
    padding: 10px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    margin-top: auto;
}

/* =========================================
   7. FOOTER Y RESPONSIVO
   ========================================= */
.main-footer {
    background: var(--dark);
    color: white;
    padding: 40px 0;
    text-align: center;
}

.main-footer a {
    color: var(--secondary); /* Color Verde Teal */
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
    border-bottom: 1px dashed transparent;
}

.main-footer a:hover {
    color: #ffffff; /* Blanco al pasar el mouse */
    border-bottom: 1px dashed #ffffff;
}

@media (max-width: 992px) {
    .hero-grid, .catalog-section, .features-grid {
        grid-template-columns: 1fr;
    }
    .hero-text { text-align: center; }
    .btn-primary { margin: 0 auto; }
    .hero-cta { align-items: center; }
}

/* =========================================
   8. SISTEMA DE LOGIN (MEJORADO)
   ========================================= */

/* El contenedor que ocupa toda la pantalla */
.login-wrapper {
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Degradado elegante usando tus variables: Azul -> Gris Oscuro */
    background: linear-gradient(135deg, var(--primary) 0%, #003366 50%, var(--dark) 100%);
    padding: 20px;
}

/* La tarjeta del formulario */
.login-card {
    background: white;
    width: 100%;
    max-width: 420px; /* Un poco más ancho para que respire */
    padding: 40px;
    border-radius: 16px; /* Bordes más modernos */
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3); /* Sombra profunda 'premium' */
    text-align: center;
    position: relative;
    overflow: hidden;
    /* Pequeña animación de entrada */
    animation: slideUp 0.5s ease-out forwards;
}

/* Decoración superior (barra de color) */
.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
}

.login-header {
    margin-bottom: 35px;
}

.login-header .icon-circle {
    width: 80px;
    height: 80px;
    background-color: rgba(0, 194, 168, 0.1); /* Verde muy suave */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px auto;
}

.login-header i {
    font-size: 2.5rem;
    color: var(--secondary);
}

.login-header h2 {
    color: var(--primary);
    font-weight: 700;
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.login-header p {
    color: #6c757d;
    font-size: 0.95rem;
}

/* Inputs estilizados */
.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text);
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: #f8f9fa;
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary);
    background-color: white;
    box-shadow: 0 4px 10px rgba(0, 194, 168, 0.1);
}

/* Botón con degradado */
.btn-login {
    width: 100%;
    padding: 15px;
    background: linear-gradient(to right, var(--primary), #004494);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 10px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 86, 179, 0.4);
}

/* Link de volver */
.back-link {
    display: inline-block;
    margin-top: 30px;
    color: #adb5bd;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.back-link:hover {
    color: var(--primary);
}

/* Animación simple */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Mensaje de error */
.alert-error {
    background-color: #ffe5e5;
    color: #d63031;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
    border-left: 4px solid #d63031;
}



/* Panel Administrativo */
.admin-navbar {
    background-color: var(--dark);
    color: white;
    padding: 15px 0;
    margin-bottom: 40px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.admin-nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-form-container {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    max-width: 800px;
    margin: 0 auto 60px auto;
}

.form-title {
    color: var(--primary);
    border-bottom: 2px solid var(--secondary);
    padding-bottom: 15px;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.full-width {
    grid-column: span 2;
}

/* Responsive para Admin */
@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
    .full-width {
        grid-column: span 1;
    }
}

/* =========================================
   9. TABLA DE ADMINISTRACIÓN
   ========================================= */
.admin-table-container {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    margin-bottom: 60px;
    overflow-x: auto; /* Para que no se rompa en celulares */
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th {
    background-color: var(--dark);
    color: white;
    padding: 15px;
    text-align: left;
    font-size: 0.9rem;
}

.admin-table th:first-child { border-top-left-radius: 10px; }
.admin-table th:last-child { border-top-right-radius: 10px; }

.admin-table td {
    padding: 15px;
    border-bottom: 1px solid #eee;
    vertical-align: middle;
    font-size: 0.95rem;
}

.admin-table tr:hover {
    background-color: #f8f9fa;
}

.thumb-img {
    width: 70px;
    height: 50px;
    object-fit: cover;
    border-radius: 6px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.action-btns {
    display: flex;
    gap: 8px;
}

.btn-sm {
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    text-decoration: none;
    font-weight: bold;
    transition: 0.2s;
}

.btn-edit {
    background-color: var(--accent); /* El amarillo que usamos para alertas */
    color: #856404;
}

.btn-edit:hover { background-color: #e0a800; }

.btn-delete {
    background-color: #dc3545; /* Rojo para eliminar */
    color: white;
}

.btn-delete:hover { background-color: #c82333; }

/* =========================================
   10. OPTIMIZACIÓN MÓVIL (HEADER)
   ========================================= */
@media (max-width: 768px) {

    /* 1. Contenedor Principal: De Fila a Columna */
    .header-content {
        flex-direction: column; /* Apila los elementos verticalmente */
        text-align: center;
        padding: 10px 0;
        gap: 15px; /* Espacio entre el nombre y los botones */
    }

    /* 2. Marca y Eslogan */
    .brand {
        flex-direction: column; /* El nombre arriba, el eslogan abajo */
        gap: 5px;
        font-size: 1.1rem; /* Un poco más grande para que se lea bien */
    }

    .brand .divider {
        display: none; /* Ocultamos la barra "|" que estorba en móviles */
    }

    /* 3. Navegación de Contacto */
    .contact-nav {
        width: 100%;
        justify-content: center; /* Centra los botones */
        flex-wrap: wrap; /* Permite que si no caben, bajen a otra línea */
        gap: 15px;
    }

    /* Botones más fáciles de tocar con el dedo */
    .contact-link, .whatsapp-badge {
        padding: 8px 16px; /* Área de toque más grande */
        font-size: 0.95rem;
    }
}

/* =========================================
   11. MENU FILTROS OFF-CANVAS (MÓVIL)
   ========================================= */

/* Estilos base para los elementos nuevos (ocultos en PC) */
.floating-btn, .overlay, .mobile-close-header {
    display: none;
}

@media (max-width: 992px) {

    /* 1. Botón Flotante (FAB) */
    .floating-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        position: fixed;
        bottom: 30px;
        right: 30px; /* Flotando a la derecha para fácil acceso con el pulgar */
        background-color: var(--dark); /* Color Oxford */
        color: white;
        border: none;
        padding: 15px 25px;
        border-radius: 50px;
        font-size: 1rem;
        font-weight: bold;
        box-shadow: 0 4px 15px rgba(0,0,0,0.4);
        z-index: 2000; /* Por encima de todo */
        cursor: pointer;
        transition: transform 0.2s;
    }

    .floating-btn:active {
        transform: scale(0.95);
    }

    /* 2. El Sidebar (Ahora oculto a la izquierda) */
    .sidebar {
        position: fixed;
        top: 0;
        left: -300px; /* Escondido fuera de la pantalla a la izquierda */
        width: 280px; /* Ancho fijo del panel */
        height: 100vh; /* Altura completa */
        background-color: var(--dark);
        z-index: 3000; /* Máxima prioridad */
        transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1); /* Deslizamiento suave */
        overflow-y: auto; /* Scroll interno si hay muchos filtros */
        box-shadow: 5px 0 15px rgba(0,0,0,0.3);
        padding: 0; /* Reset del padding para manejarlo dentro */
    }

    /* Clase para mostrar el sidebar */
    .sidebar.active {
        left: 0; /* Lo movemos a la vista */
    }

    /* 3. Header interno del Sidebar (Título y Cerrar) */
    .mobile-close-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px;
        background-color: rgba(0,0,0,0.2);
        border-bottom: 1px solid rgba(255,255,255,0.1);
        margin-bottom: 20px;
    }

    .mobile-close-header span {
        font-size: 1.2rem;
        font-weight: bold;
        color: white;
    }

    #close-filter-btn {
        background: none;
        border: none;
        color: white;
        font-size: 1.5rem;
        cursor: pointer;
    }

    /* Ajuste del formulario dentro del sidebar */
    #filter-form {
        padding: 0 20px 20px 20px;
        display: block !important; /* Asegurar que siempre se vea el form */
    }

    /* Ocultar el título H2 original en móvil porque ya pusimos el header nuevo */
    .sidebar > h2 {
        display: none;
    }

    /* 4. Overlay (Fondo oscuro) */
    .overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0,0,0,0.6); /* Negro semitransparente */
        z-index: 2500; /* Debajo del sidebar, encima del contenido */
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
        backdrop-filter: blur(2px); /* Efecto borroso elegante */
    }

    .overlay.active {
        opacity: 1;
        visibility: visible;
    }

    /* Ajuste de productos */
    .catalog-section {
        flex-direction: column;
    }

    .products-grid {
        width: 100%;
        padding: 0 15px; /* Un poco de margen lateral */
    }
}