/* css/estilos.css - Arquitectura Profesional "Visión Creativa 2.2" (VERSIÓN UNIFICADA FINAL) */

:root {
    --azul-vw: #0A3A82;
    --azul-bmw: #1C69D4;
    --gris-oscuro-vw: #1C1C1C;
    --gris-claro-bmw: #BDC3C7;
    --blanco-neutro: #FBFAFA;
    --sidebar-width: 260px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #f8f9fa;
    background-image: radial-gradient(var(--gris-claro-bmw) 0.5px, transparent 0.5px);
    background-size: 15px 15px;
}

/* --- Estructura Principal --- */
.sidebar-backdrop { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.5); z-index: 999; opacity: 0; visibility: hidden; transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out; }
.sidebar-backdrop.visible { opacity: 1; visibility: visible; }
.sidebar { width: var(--sidebar-width); height: 100vh; background-color: var(--blanco-neutro); border-right: 1px solid #e9ecef; padding: 20px; position: fixed; top: 0; left: 0; z-index: 1000; transform: translateX(-100%); transition: transform 0.3s ease-in-out; isolation: isolate; }
.sidebar.visible { transform: translateX(0); }
.sidebar-header { display: flex; justify-content: center; align-items: center; padding-bottom: 20px; border-bottom: 1px solid #e9ecef; }
.logo { max-width: 150px; height: auto; }
.sidebar-nav ul { list-style-type: none; }
.sidebar-nav li a { display: flex; align-items: center; gap: 15px; color: var(--gris-oscuro-vw); text-decoration: none; padding: 15px; border-radius: 8px; margin-bottom: 5px; font-weight: 500; transition: background-color 0.2s ease, color 0.2s ease; }
.sidebar-nav li a:hover { background-color: #f0f2f5; }
.sidebar-nav li.active a { background-color: var(--azul-vw); color: var(--blanco-neutro); }
.sidebar-nav i { font-size: 1.2rem; }
.main-wrapper { flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.main-header { background-color: var(--blanco-neutro); padding: 15px 20px; border-bottom: 1px solid #e9ecef; display: flex; justify-content: space-between; align-items: center; }
.header-left { display: flex; align-items: center; gap: 15px; }
.menu-btn { background: none; border: none; font-size: 1.8rem; cursor: pointer; color: var(--gris-oscuro-vw); }
.brand-name { font-weight: 600; color: var(--gris-oscuro-vw); line-height: 1.2; }
.brand-name span { display: block; font-size: 0.7rem; font-weight: 400; color: var(--gris-claro-bmw); letter-spacing: 0.5px; }
.header-actions { display: flex; gap: 20px; align-items: center; }
.header-actions a { color: var(--gris-oscuro-vw); font-size: 1.5rem; text-decoration: none; position: relative; }
.cart-count { font-size: 0.7rem; background-color: var(--azul-bmw); color: var(--blanco-neutro); border-radius: 50%; padding: 2px 5px; position: absolute; top: -5px; right: -8px; }
.content-area { flex: 1; padding: 20px; }
.main-footer { background-color: var(--gris-oscuro-vw); color: var(--gris-claro-bmw); padding: 20px; text-align: center; font-size: 0.85rem; }
.main-footer p { margin: 5px 0; }

/* ================================================================= */
/* --- COMPONENTES GLOBALES DE BOTONES --- */
/* ================================================================= */
.cta-button, .cta-button-secondary { display: inline-block; padding: 15px 30px; font-weight: 600; border-radius: 8px; text-decoration: none !important; cursor: pointer; transition: all 0.3s ease; box-sizing: border-box; }
.cta-button { background-color: var(--azul-bmw); color: var(--blanco-neutro) !important; border: 2px solid transparent; }
.cta-button:hover { background-color: #165bb8; transform: translateY(-3px); }
.cta-button-secondary { background-color: transparent; color: var(--azul-vw) !important; border: 2px solid var(--azul-vw); }
.cta-button-secondary:hover { background-color: var(--azul-vw); color: var(--blanco-neutro) !important; }

/* --- ANULACIÓN CONTEXTUAL PARA BOTONES --- */
.b2b-cta-banner .cta-button-secondary { color: var(--blanco-neutro) !important; border-color: var(--blanco-neutro); }
.b2b-cta-banner .cta-button-secondary:hover { background-color: var(--blanco-neutro); color: var(--gris-oscuro-vw) !important; }

/* ================================================================= */
/* --- ESTILOS DE PÁGINAS ESPECÍFICAS --- */
/* ================================================================= */

/* --- Estilos de Catálogo (index.php) --- */
.hero-banner { background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../img/hero-background.jpg'); background-size: cover; background-position: center; padding: 100px 20px; text-align: center; color: var(--blanco-neutro); border-radius: 12px; margin-bottom: 40px; }
.hero-content h1 { font-size: 2.5rem; font-weight: 700; margin-bottom: 15px; text-shadow: 2px 2px 4px rgba(0,0,0,0.5); }
.hero-content p { font-size: 1.2rem; max-width: 600px; margin: 0 auto 30px auto; line-height: 1.6; }
.benefits-bar { display: flex; justify-content: space-around; flex-wrap: wrap; background-color: #f8f9fa; padding: 20px; border-radius: 8px; margin-bottom: 40px; gap: 20px; }
.benefit-item { display: flex; align-items: center; gap: 10px; color: var(--gris-oscuro-vw); font-weight: 500; }
.benefit-item i { font-size: 1.8rem; color: var(--azul-vw); }
.section-title { text-align: center; font-size: 2rem; color: var(--gris-oscuro-vw); margin-bottom: 30px; padding-bottom: 10px; border-bottom: 2px solid var(--azul-vw); display: inline-block; position: relative; left: 50%; transform: translateX(-50%); }
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 30px; }
.product-card { background-color: var(--blanco-neutro); border: 1px solid #e9ecef; border-radius: 12px; overflow: hidden; text-decoration: none; color: inherit; display: flex; flex-direction: column; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.product-card:hover { transform: translateY(-5px); box-shadow: 0 12px 24px rgba(0,0,0,0.1); }
.product-card-image { width: 100%; aspect-ratio: 1 / 1; background-color: #f8f9fa; }
.product-card-image img { width: 100%; height: 100%; object-fit: cover; }
.product-card-info { padding: 20px; text-align: center; }
.product-card-info h2 { font-size: 1.2rem; font-weight: 600; margin: 0 0 10px 0; color: var(--gris-oscuro-vw); }
.product-card-info .price { font-size: 1.3rem; font-weight: 700; color: var(--azul-vw); }
.no-products { grid-column: 1 / -1; text-align: center; padding: 50px; font-size: 1.2rem; color: #6c757d; }
.b2b-cta-banner { background-color: var(--gris-oscuro-vw); color: var(--blanco-neutro); padding: 50px 20px; text-align: center; border-radius: 12px; margin-top: 60px; }
.b2b-cta-content h2 { font-size: 2rem; margin-bottom: 15px; }
.b2b-cta-content p { font-size: 1.1rem; max-width: 600px; margin: 0 auto 30px auto; }

/* --- Estilos de Producto (producto.php) --- */
.producto-container{display:flex;flex-direction:column;gap:20px;background-color:var(--blanco-neutro);padding:20px;border-radius:12px;border:1px solid #e9ecef;box-shadow:0 8px 30px rgba(0,0,0,.08);width:100%}
.producto-imagen{flex:1}#product-image{width:100%;height:auto;border-radius:8px;object-fit:cover}
.producto-detalles{flex:1;display:flex;flex-direction:column}
#product-name{font-size:2rem;margin:0 0 10px 0;font-weight:700;color:var(--azul-vw)}
#product-description{font-size:1rem;line-height:1.6;color:#495057;margin-bottom:20px}
.precio{font-size:1.8rem;font-weight:700;color:var(--gris-oscuro-vw);margin-bottom:5px}
.stock{font-size:.9rem;color:#28a745;margin-bottom:30px}
.selector-color h3{font-size:1rem;font-weight:500;margin-bottom:15px;color:var(--gris-oscuro-vw)}
#color-name{font-weight:700}
.swatches-container{display:flex;gap:12px}
.swatch{width:32px;height:32px;border-radius:50%;border:3px solid #f0f2f5;cursor:pointer;transition:all .2s ease-in-out;padding:0}
.swatch:hover{transform:scale(1.15)}
.swatch.active{border-color:var(--azul-bmw);box-shadow:0 0 0 2px var(--blanco-neutro),0 0 0 4px var(--azul-bmw)}
.product-specs { margin-top: 20px; margin-bottom: 20px; border-top: 1px solid #e9ecef; padding-top: 20px; }
.product-specs h4 { font-size: 1.1rem; font-weight: 600; margin-bottom: 15px; color: var(--gris-oscuro-vw); }
.product-specs ul { list-style-type: none; padding: 0; font-size: 0.9rem; color: #495057; }
.product-specs ul li { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed #e9ecef; }
.product-specs ul li span { text-align: right; }
.product-specs ul li:last-child { border-bottom: none; }
.product-specs ul li strong { color: var(--gris-oscuro-vw); }
.product-actions { display: flex; align-items: center; gap: 20px; margin-bottom: 30px; flex-wrap: wrap; }
.quantity-selector { display: flex; align-items: center; gap: 10px; }
.quantity-selector label { font-weight: 500; }
.quantity-selector input { width: 60px; padding: 10px; text-align: center; border: 1px solid #ced4da; border-radius: 6px; }
.product-actions .cta-button { padding: 12px 25px; font-size: 1rem; }
#cart-count-badge { display: none; }

/* --- Utilidades y Misceláneos --- */
.swal2-toast-z-index { z-index: 9999 !important; }

/* --- Media Queries --- */
@media (min-width: 768px) {
    .main-header { padding: 15px 40px; }
    .content-area { padding: 40px; }
    .producto-container { flex-direction: row; gap: 40px; padding: 40px; }
    #product-name { font-size: 2.5rem; }
    .precio { font-size: 2rem; }
    .product-specs ul { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
    .product-specs ul li { border-bottom: none; }
}

@media (min-width: 992px) {
    .sidebar { transform: translateX(0); position: static; }
    .menu-btn { display: none; }
    .app-layout { display: grid; grid-template-columns: var(--sidebar-width) 1fr; }
    .sidebar-backdrop { display: none; }
}

@media (max-width: 768px) {
    .hero-content h1 { font-size: 2rem; }
    .benefits-bar { flex-direction: column; align-items: flex-start; }
}