/* ============================================
   TECHSTORE - ESTILOS PRINCIPALES
   Tema Oscuro Tech
   ============================================ */

/* VARIABLES */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161f;
    --bg-card-hover: #1e1e2a;
    --accent-cyan: #00d4ff;
    --accent-blue: #0066ff;
    --accent-purple: #7c3aed;
    --accent-green: #00ff88;
    --accent-orange: #ff6b00;
    --accent-red: #ff3366;
    --text-primary: #f0f0f5;
    --text-secondary: #9090a8;
    --text-muted: #5a5a72;
    --border-color: #2a2a3a;
    --border-glow: rgba(0, 212, 255, 0.3);
    --gradient-main: linear-gradient(135deg, #0066ff, #00d4ff);
    --gradient-card: linear-gradient(145deg, #16161f, #1e1e2a);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.15);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
    --font-tech: 'Orbitron', monospace;
    --font-body: 'Inter', sans-serif;
    --font-heading: 'Rajdhani', sans-serif;
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* SCROLLBAR */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent-cyan); border-radius: 3px; }

/* CONTAINER */
.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }

/* ============================================
   TOPBAR
   ============================================ */
.topbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 8px 0;
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.topbar-left, .topbar-right { display: flex; gap: 20px; align-items: center; }
.topbar-left span, .topbar-right a { display: flex; align-items: center; gap: 6px; }
.topbar-right a { color: var(--text-secondary); }
.topbar-right a:hover { color: var(--accent-cyan); }
.topbar-right a i.fa-whatsapp { color: #25d366; }

/* ============================================
   HEADER
   ============================================ */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}
.header-inner { display: flex; align-items: center; gap: 20px; }

/* LOGO */
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-icon {
    width: 44px; height: 44px;
    background: var(--gradient-main);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem;
    color: white;
    box-shadow: var(--shadow-glow);
}
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-main {
    font-family: var(--font-tech);
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: 2px;
}
.logo-accent { color: var(--accent-cyan); }
.logo-sub { font-size: 0.65rem; color: var(--text-muted); letter-spacing: 3px; text-transform: uppercase; }

/* BUSCADOR */
.search-form { flex: 1; max-width: 500px; display: flex; position: relative; }
.search-input {
    width: 100%;
    padding: 10px 50px 10px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 25px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition);
}
.search-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}
.search-input::placeholder { color: var(--text-muted); }
.search-btn {
    position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
    width: 36px; height: 36px;
    background: var(--gradient-main);
    border-radius: 50%;
    color: white;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem;
    transition: var(--transition);
}
.search-btn:hover { transform: translateY(-50%) scale(1.1); }

/* ACCIONES HEADER */
.header-actions { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }
.header-action-btn {
    display: flex; flex-direction: column; align-items: center;
    gap: 2px; padding: 8px 12px;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    position: relative;
    transition: var(--transition);
}
.header-action-btn i { font-size: 1.2rem; }
.header-action-btn:hover { color: var(--accent-cyan); background: rgba(0,212,255,0.05); }
.cart-btn { position: relative; }
.cart-badge {
    position: absolute; top: 4px; right: 8px;
    background: var(--accent-red);
    color: white; font-size: 0.65rem; font-weight: 700;
    width: 18px; height: 18px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{transform:scale(1)} 50%{transform:scale(1.2)} }

/* MENÚ HAMBURGUESA */
.menu-toggle {
    display: none; flex-direction: column; gap: 5px;
    padding: 8px; border-radius: var(--radius-sm);
    background: var(--bg-card);
}
.menu-toggle span {
    display: block; width: 22px; height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky; top: 77px; z-index: 999;
}
.nav-menu { display: flex; align-items: center; gap: 4px; padding: 0; }
.nav-link {
    display: flex; align-items: center; gap: 8px;
    padding: 14px 16px;
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
    color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
    background: rgba(0,212,255,0.05);
}
.nav-badge-new {
    background: var(--accent-orange);
    color: white; font-size: 0.6rem; font-weight: 700;
    padding: 2px 6px; border-radius: 10px;
    letter-spacing: 0.5px;
    animation: glow-orange 2s infinite;
}
@keyframes glow-orange { 0%,100%{box-shadow:0 0 5px rgba(255,107,0,0.5)} 50%{box-shadow:0 0 15px rgba(255,107,0,0.8)} }
.nav-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 998; }

/* ============================================
   HERO / BANNER
   ============================================ */
.hero {
    position: relative;
    min-height: 580px;
    display: flex; align-items: center;
    overflow: hidden;
    background: var(--bg-secondary);
    padding: 60px 0;
}
.hero-bg {
    position: absolute; inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(0,102,255,0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 50%, rgba(0,212,255,0.1) 0%, transparent 60%),
        radial-gradient(ellipse at 50% 100%, rgba(124,58,237,0.1) 0%, transparent 60%);
}
.hero-grid {
    position: absolute; inset: 0;
    background-image: 
        linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}
.hero-content { position: relative; z-index: 2; width: 100%; max-width: 100%; text-align: center; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(0,212,255,0.1);
    border: 1px solid rgba(0,212,255,0.3);
    color: var(--accent-cyan);
    padding: 6px 16px; border-radius: 20px;
    font-size: 0.8rem; font-weight: 600;
    letter-spacing: 1px; text-transform: uppercase;
    margin-bottom: 20px;
    justify-content: center;
}
.hero-title {
    font-family: var(--font-tech);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--text-primary);
}
.hero-title .highlight {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 32px; max-width: 720px; margin-left: auto; margin-right: auto; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.hero-stats { display: flex; gap: 32px; margin-top: 48px; justify-content: center; }
.hero-stat { text-align: center; }
.hero-stat-num {
    font-family: var(--font-tech);
    font-size: 1.8rem; font-weight: 700;
    color: var(--accent-cyan);
}
.hero-stat-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

/* ============================================
   BOTONES
   ============================================ */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 28px; border-radius: 8px;
    font-weight: 600; font-size: 0.9rem;
    transition: var(--transition);
    cursor: pointer; border: none;
    letter-spacing: 0.5px;
}
.btn-primary {
    background: var(--gradient-main);
    color: white;
    box-shadow: 0 4px 15px rgba(0,102,255,0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,102,255,0.5); }
.btn-outline {
    background: transparent;
    color: var(--accent-cyan);
    border: 1px solid var(--accent-cyan);
}
.btn-outline:hover { background: rgba(0,212,255,0.1); transform: translateY(-2px); }
.btn-danger { background: var(--accent-red); color: white; }
.btn-danger:hover { background: #cc0044; transform: translateY(-2px); }
.btn-success { background: var(--accent-green); color: #000; }
.btn-success:hover { background: #00cc6a; transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 0.82rem; }
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }

/* ============================================
   SECCIONES
   ============================================ */
.section { padding: 70px 0; }
.section-alt { background: var(--bg-secondary); }
.section-header { text-align: center; margin-bottom: 50px; }
.section-badge {
    display: inline-flex; align-items: center; gap: 8px;
    color: var(--accent-cyan); font-size: 0.8rem;
    font-weight: 600; letter-spacing: 2px; text-transform: uppercase;
    margin-bottom: 12px;
}
.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.section-title span { color: var(--accent-cyan); }
.section-desc { color: var(--text-secondary); max-width: 600px; margin: 0 auto; }
.section-line {
    width: 60px; height: 3px;
    background: var(--gradient-main);
    margin: 16px auto 0;
    border-radius: 2px;
}

/* ============================================
   TARJETAS DE CATEGORÍAS
   ============================================ */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}
.category-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.category-card::before {
    content: '';
    position: absolute; inset: 0;
    background: var(--gradient-main);
    opacity: 0;
    transition: var(--transition);
}
.category-card:hover { transform: translateY(-6px); border-color: var(--accent-cyan); box-shadow: var(--shadow-glow); }
.category-card:hover::before { opacity: 0.05; }
.category-icon {
    width: 70px; height: 70px;
    background: rgba(0,212,255,0.1);
    border: 1px solid rgba(0,212,255,0.2);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.8rem;
    color: var(--accent-cyan);
    transition: var(--transition);
    position: relative; z-index: 1;
}
.category-card:hover .category-icon { background: rgba(0,212,255,0.2); transform: scale(1.1); }
.category-name {
    font-family: var(--font-heading);
    font-size: 1.1rem; font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
    position: relative; z-index: 1;
}
.category-count { font-size: 0.8rem; color: var(--text-muted); position: relative; z-index: 1; }
.category-new-badge {
    position: absolute; top: 12px; right: 12px;
    background: var(--accent-orange);
    color: white; font-size: 0.65rem; font-weight: 700;
    padding: 3px 8px; border-radius: 10px;
    letter-spacing: 0.5px;
}

/* ============================================
   TARJETAS DE PRODUCTOS
   ============================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}
.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
    display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); border-color: var(--accent-cyan); box-shadow: var(--shadow-glow); }
.product-img-wrap {
    position: relative;
    height: 220px;
    background: var(--bg-secondary);
    overflow: hidden;
    display: flex; align-items: center; justify-content: center;
}
.product-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.product-card:hover .product-img-wrap img { transform: scale(1.05); }
.product-img-placeholder {
    font-size: 4rem; color: var(--text-muted);
    display: flex; align-items: center; justify-content: center;
    width: 100%; height: 100%;
}
.product-badge {
    position: absolute; top: 12px; left: 12px;
    padding: 4px 10px; border-radius: 6px;
    font-size: 0.7rem; font-weight: 700;
    letter-spacing: 0.5px; text-transform: uppercase;
}
.badge-oferta { background: var(--accent-red); color: white; }
.badge-nuevo { background: var(--accent-green); color: #000; }
.badge-destacado { background: var(--accent-orange); color: white; }
.product-actions-overlay {
    position: absolute; bottom: -50px; left: 0; right: 0;
    display: flex; gap: 8px; padding: 12px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    transition: var(--transition);
}
.product-card:hover .product-actions-overlay { bottom: 0; }
.product-body { padding: 18px; flex: 1; display: flex; flex-direction: column; }
.product-category { font-size: 0.75rem; color: var(--accent-cyan); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.product-name {
    font-family: var(--font-heading);
    font-size: 1rem; font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.product-desc { font-size: 0.82rem; color: var(--text-secondary); margin-bottom: 12px; flex: 1;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-price-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.product-price {
    font-family: var(--font-tech);
    font-size: 1.2rem; font-weight: 700;
    color: var(--accent-cyan);
}
.product-price-old { font-size: 0.85rem; color: var(--text-muted); text-decoration: line-through; }
.product-discount {
    background: var(--accent-red); color: white;
    font-size: 0.7rem; font-weight: 700;
    padding: 2px 6px; border-radius: 4px;
}
.product-stock { font-size: 0.75rem; color: var(--accent-green); margin-bottom: 14px; }
.product-stock.low { color: var(--accent-orange); }
.product-stock.out { color: var(--accent-red); }
.product-footer { display: flex; gap: 8px; }
.btn-cart {
    flex: 1;
    background: var(--gradient-main);
    color: white; padding: 10px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem; font-weight: 600;
    display: flex; align-items: center; justify-content: center; gap: 6px;
    transition: var(--transition);
}
.btn-cart:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(0,102,255,0.4); }
.btn-wishlist {
    width: 40px; height: 40px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition);
}
.btn-wishlist:hover { color: var(--accent-red); border-color: var(--accent-red); }

/* ============================================
   CARRITO
   ============================================ */
.cart-page { padding: 40px 0; }
.cart-grid { display: grid; grid-template-columns: 1fr 360px; gap: 30px; align-items: start; }
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th {
    background: var(--bg-card);
    padding: 14px 16px;
    text-align: left;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border-color);
}
.cart-table td { padding: 16px; border-bottom: 1px solid var(--border-color); vertical-align: middle; }
.cart-product { display: flex; align-items: center; gap: 14px; }
.cart-product-img {
    width: 70px; height: 70px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    overflow: hidden; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
}
.cart-product-img img { width: 100%; height: 100%; object-fit: cover; }
.cart-product-name { font-weight: 600; color: var(--text-primary); font-size: 0.9rem; }
.cart-product-cat { font-size: 0.75rem; color: var(--text-muted); }
.qty-control { display: flex; align-items: center; gap: 8px; }
.qty-btn {
    width: 30px; height: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; transition: var(--transition);
}
.qty-btn:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }
.qty-input {
    width: 50px; text-align: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    padding: 4px;
    font-size: 0.9rem;
}
.cart-summary {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    position: sticky; top: 160px;
}
.cart-summary-title {
    font-family: var(--font-heading);
    font-size: 1.2rem; font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}
.summary-row { display: flex; justify-content: space-between; margin-bottom: 12px; font-size: 0.9rem; }
.summary-row.total {
    font-size: 1.1rem; font-weight: 700;
    color: var(--accent-cyan);
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
    margin-top: 12px;
}

/* ============================================
   CHECKOUT / PAGO
   ============================================ */
.checkout-grid { display: grid; grid-template-columns: 1fr 380px; gap: 30px; align-items: start; }
.checkout-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 24px;
}
.checkout-section-title {
    font-family: var(--font-heading);
    font-size: 1.1rem; font-weight: 700;
    margin-bottom: 20px;
    display: flex; align-items: center; gap: 10px;
    color: var(--accent-cyan);
}
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 6px; font-weight: 500; }
.form-control {
    width: 100%;
    padding: 11px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition);
}
.form-control:focus { outline: none; border-color: var(--accent-cyan); box-shadow: 0 0 0 3px rgba(0,212,255,0.1); }
.form-control::placeholder { color: var(--text-muted); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* MÉTODOS DE PAGO */
.payment-methods { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.payment-method {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    padding: 16px;
    cursor: pointer;
    transition: var(--transition);
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    text-align: center;
}
.payment-method:hover { border-color: var(--accent-cyan); }
.payment-method.selected { border-color: var(--accent-cyan); background: rgba(0,212,255,0.05); }
.payment-method input[type="radio"] { display: none; }
.payment-method-icon { font-size: 2rem; }
.payment-method-icon.paypal { color: #003087; }
.payment-method-icon.binance { color: #f3ba2f; }
.payment-method-icon.transfer { color: var(--accent-green); }
.payment-method-icon.movil { color: var(--accent-purple); }
.payment-method-name { font-size: 0.85rem; font-weight: 600; color: var(--text-primary); }
.payment-method-desc { font-size: 0.72rem; color: var(--text-muted); }
.payment-info-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-top: 16px;
    display: none;
}
.payment-info-box.active { display: block; }
.payment-info-box h5 { font-size: 0.9rem; color: var(--accent-cyan); margin-bottom: 10px; }
.payment-info-row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border-color); font-size: 0.85rem; }
.payment-info-row:last-child { border-bottom: none; }
.payment-info-label { color: var(--text-muted); }
.payment-info-value { color: var(--text-primary); font-weight: 600; }
.upload-comprobante { margin-top: 14px; }
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}
.upload-area:hover { border-color: var(--accent-cyan); }
.upload-area i { font-size: 2rem; color: var(--text-muted); margin-bottom: 8px; }
.upload-area p { font-size: 0.82rem; color: var(--text-muted); }

/* ============================================
   PÁGINA DE PRODUCTO DETALLE
   ============================================ */
.product-detail { padding: 40px 0; }
.product-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }
.product-gallery { position: sticky; top: 160px; }
.product-main-img {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    height: 400px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 12px;
}
.product-main-img img { width: 100%; height: 100%; object-fit: cover; }
.product-thumbnails { display: flex; gap: 10px; }
.product-thumb {
    width: 70px; height: 70px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden; cursor: pointer;
    transition: var(--transition);
}
.product-thumb:hover, .product-thumb.active { border-color: var(--accent-cyan); }
.product-info-detail { }
.product-brand { font-size: 0.8rem; color: var(--accent-cyan); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 8px; }
.product-title-detail {
    font-family: var(--font-heading);
    font-size: 1.8rem; font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px; line-height: 1.2;
}
.product-price-detail {
    font-family: var(--font-tech);
    font-size: 2rem; font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 8px;
}
.product-price-ves { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 20px; }
.product-desc-detail { color: var(--text-secondary); line-height: 1.7; margin-bottom: 24px; }
.product-specs {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-bottom: 24px;
}
.product-specs h4 { font-size: 0.9rem; color: var(--accent-cyan); margin-bottom: 12px; }
.spec-row { display: flex; gap: 12px; padding: 6px 0; border-bottom: 1px solid var(--border-color); font-size: 0.85rem; }
.spec-row:last-child { border-bottom: none; }
.spec-label { color: var(--text-muted); min-width: 120px; }
.spec-value { color: var(--text-primary); }
.product-qty-wrap { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.product-add-cart { display: flex; gap: 12px; }

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
    display: flex; align-items: center; gap: 8px;
    padding: 16px 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent-cyan); }
.breadcrumb-sep { color: var(--text-muted); }
.breadcrumb-current { color: var(--text-primary); }

/* ============================================
   PÁGINA DE CATEGORÍA
   ============================================ */
.category-header {
    background: var(--bg-secondary);
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 40px;
}
.category-header-inner { display: flex; align-items: center; gap: 20px; }
.category-header-icon {
    width: 80px; height: 80px;
    background: rgba(0,212,255,0.1);
    border: 1px solid rgba(0,212,255,0.3);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem; color: var(--accent-cyan);
    flex-shrink: 0;
}
.category-header-title { font-family: var(--font-heading); font-size: 2rem; font-weight: 700; }
.category-header-desc { color: var(--text-secondary); margin-top: 6px; }
.filters-bar {
    display: flex; align-items: center; gap: 16px;
    margin-bottom: 30px; flex-wrap: wrap;
}
.filter-select {
    padding: 8px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
}
.filter-select:focus { outline: none; border-color: var(--accent-cyan); }
.results-count { color: var(--text-muted); font-size: 0.85rem; margin-left: auto; }

/* ============================================
   LOGIN / REGISTRO
   ============================================ */
.auth-page {
    min-height: calc(100vh - 200px);
    display: flex; align-items: center; justify-content: center;
    padding: 40px 20px;
    background: radial-gradient(ellipse at center, rgba(0,102,255,0.05) 0%, transparent 70%);
}
.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 40px;
    width: 100%; max-width: 440px;
    box-shadow: var(--shadow-card);
}
.auth-logo { text-align: center; margin-bottom: 28px; }
.auth-logo i { font-size: 2.5rem; color: var(--accent-cyan); }
.auth-title { font-family: var(--font-heading); font-size: 1.6rem; font-weight: 700; text-align: center; margin-bottom: 6px; }
.auth-subtitle { text-align: center; color: var(--text-muted); font-size: 0.85rem; margin-bottom: 28px; }
.auth-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border-color); }
.auth-divider span { font-size: 0.8rem; color: var(--text-muted); }
.auth-link { text-align: center; margin-top: 20px; font-size: 0.85rem; color: var(--text-muted); }
.auth-link a { color: var(--accent-cyan); font-weight: 600; }

/* ============================================
   ADMIN PANEL
   ============================================ */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: 260px; flex-shrink: 0;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 24px 0;
    position: sticky; top: 0; height: 100vh;
    overflow-y: auto;
}
.admin-sidebar-logo {
    padding: 0 24px 24px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 16px;
    font-family: var(--font-tech);
    font-size: 1rem; font-weight: 700;
    color: var(--accent-cyan);
}
.admin-nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 24px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: var(--transition);
    border-left: 3px solid transparent;
}
.admin-nav-item:hover, .admin-nav-item.active {
    color: var(--accent-cyan);
    background: rgba(0,212,255,0.05);
    border-left-color: var(--accent-cyan);
}
.admin-content { flex: 1; padding: 30px; overflow-x: auto; }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; }
.admin-title { font-family: var(--font-heading); font-size: 1.6rem; font-weight: 700; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-bottom: 30px; }
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    display: flex; align-items: center; gap: 16px;
    transition: var(--transition);
}
.stat-card:hover { border-color: var(--accent-cyan); box-shadow: var(--shadow-glow); }
.stat-icon {
    width: 52px; height: 52px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem;
}
.stat-icon.blue { background: rgba(0,102,255,0.15); color: var(--accent-blue); }
.stat-icon.cyan { background: rgba(0,212,255,0.15); color: var(--accent-cyan); }
.stat-icon.green { background: rgba(0,255,136,0.15); color: var(--accent-green); }
.stat-icon.orange { background: rgba(255,107,0,0.15); color: var(--accent-orange); }
.stat-num { font-family: var(--font-tech); font-size: 1.6rem; font-weight: 700; color: var(--text-primary); }
.stat-label { font-size: 0.8rem; color: var(--text-muted); }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th {
    background: var(--bg-secondary);
    padding: 12px 16px;
    text-align: left;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border-color);
}
.admin-table td { padding: 14px 16px; border-bottom: 1px solid var(--border-color); font-size: 0.88rem; vertical-align: middle; }
.admin-table tr:hover td { background: rgba(0,212,255,0.02); }
.status-badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 4px 10px; border-radius: 20px;
    font-size: 0.72rem; font-weight: 600;
}
.status-nuevo { background: rgba(0,102,255,0.15); color: var(--accent-blue); }
.status-procesando { background: rgba(255,107,0,0.15); color: var(--accent-orange); }
.status-pagado { background: rgba(0,255,136,0.15); color: var(--accent-green); }
.status-pendiente { background: rgba(255,107,0,0.15); color: var(--accent-orange); }
.status-enviado { background: rgba(124,58,237,0.15); color: var(--accent-purple); }
.status-entregado { background: rgba(0,255,136,0.15); color: var(--accent-green); }
.status-cancelado { background: rgba(255,51,102,0.15); color: var(--accent-red); }
.status-rechazado { background: rgba(255,51,102,0.15); color: var(--accent-red); }

/* ============================================
   ALERTAS Y MENSAJES
   ============================================ */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    display: flex; align-items: center; gap: 10px;
    font-size: 0.9rem;
}
.alert-success { background: rgba(0,255,136,0.1); border: 1px solid rgba(0,255,136,0.3); color: var(--accent-green); }
.alert-error { background: rgba(255,51,102,0.1); border: 1px solid rgba(255,51,102,0.3); color: var(--accent-red); }
.alert-warning { background: rgba(255,107,0,0.1); border: 1px solid rgba(255,107,0,0.3); color: var(--accent-orange); }
.alert-info { background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.3); color: var(--accent-cyan); }

/* ============================================
   TOAST NOTIFICACIONES
   ============================================ */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    min-width: 280px; max-width: 360px;
    display: flex; align-items: center; gap: 12px;
    box-shadow: var(--shadow-card);
    animation: slideInRight 0.3s ease;
    font-size: 0.88rem;
}
.toast.success { border-left: 3px solid var(--accent-green); }
.toast.error { border-left: 3px solid var(--accent-red); }
.toast.info { border-left: 3px solid var(--accent-cyan); }
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ============================================
   FOOTER
   ============================================ */
.footer { background: var(--bg-secondary); border-top: 1px solid var(--border-color); margin-top: 60px; }
.footer-top { padding: 60px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; }
.footer-logo {
    display: flex; align-items: center; gap: 10px;
    font-family: var(--font-tech);
    font-size: 1.2rem; font-weight: 900;
    margin-bottom: 16px;
}
.footer-logo i { color: var(--accent-cyan); font-size: 1.5rem; }
.footer-logo span { color: var(--text-primary); }
.footer-logo span span { color: var(--accent-cyan); }
.footer-desc { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.7; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
    width: 36px; height: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted);
    transition: var(--transition);
}
.footer-social a:hover { color: var(--accent-cyan); border-color: var(--accent-cyan); transform: translateY(-2px); }
.footer-title { font-family: var(--font-heading); font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 16px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
    color: var(--text-secondary); font-size: 0.85rem;
    display: flex; align-items: center; gap: 8px;
    transition: var(--transition);
}
.footer-links a:hover { color: var(--accent-cyan); padding-left: 4px; }
.badge-new {
    background: var(--accent-orange); color: white;
    font-size: 0.6rem; font-weight: 700;
    padding: 2px 6px; border-radius: 8px;
}
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 10px; }
.footer-contact li i { color: var(--accent-cyan); margin-top: 2px; flex-shrink: 0; }
.whatsapp-btn-footer {
    display: inline-flex; align-items: center; gap: 8px;
    background: #25d366; color: white;
    padding: 8px 16px; border-radius: 20px;
    font-size: 0.82rem; font-weight: 600;
    transition: var(--transition);
}
.whatsapp-btn-footer:hover { background: #1da851; transform: translateY(-2px); }
.mt-20 { margin-top: 20px; }
.payment-icons { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.pay-icon {
    display: flex; align-items: center; gap: 5px;
    padding: 5px 10px; border-radius: 6px;
    font-size: 0.75rem; font-weight: 600;
    border: 1px solid var(--border-color);
}
.pay-icon.paypal { color: #003087; border-color: #003087; background: rgba(0,48,135,0.1); }
.pay-icon.binance { color: #f3ba2f; border-color: #f3ba2f; background: rgba(243,186,47,0.1); }
.pay-icon.transfer { color: var(--accent-green); border-color: var(--accent-green); background: rgba(0,255,136,0.1); }
.pay-icon.movil { color: var(--accent-purple); border-color: var(--accent-purple); background: rgba(124,58,237,0.1); }
.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 20px 0;
    display: flex;
}
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }

/* ============================================
   WHATSAPP FLOTANTE & BACK TO TOP
   ============================================ */
.whatsapp-float {
    position: fixed; bottom: 90px; right: 24px;
    width: 54px; height: 54px;
    background: #25d366;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; color: white;
    box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    z-index: 999;
    transition: var(--transition);
    animation: float 3s ease-in-out infinite;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 25px rgba(37,211,102,0.6); }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-6px)} }
.back-to-top {
    position: fixed; bottom: 24px; right: 24px;
    width: 44px; height: 44px;
    background: var(--gradient-main);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 1rem;
    box-shadow: 0 4px 15px rgba(0,102,255,0.4);
    z-index: 999;
    opacity: 0; pointer-events: none;
    transition: var(--transition);
}
.back-to-top.visible { opacity: 1; pointer-events: all; }
.back-to-top:hover { transform: translateY(-3px); }

/* ============================================
   PÁGINA VACÍA / SIN RESULTADOS
   ============================================ */
.empty-state { text-align: center; padding: 80px 20px; }
.empty-state i { font-size: 4rem; color: var(--text-muted); margin-bottom: 20px; }
.empty-state h3 { font-family: var(--font-heading); font-size: 1.4rem; margin-bottom: 10px; }
.empty-state p { color: var(--text-muted); margin-bottom: 24px; }

/* ============================================
   PAGINACIÓN
   ============================================ */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.page-btn {
    width: 38px; height: 38px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem;
    transition: var(--transition);
}
.page-btn:hover, .page-btn.active { background: var(--gradient-main); color: white; border-color: transparent; }

/* ============================================
   MODAL
   ============================================ */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.8);
    z-index: 9000;
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
    opacity: 0; pointer-events: none;
    transition: var(--transition);
}
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 32px;
    max-width: 500px; width: 100%;
    transform: scale(0.9);
    transition: var(--transition);
}
.modal-overlay.active .modal { transform: scale(1); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.modal-title { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700; }
.modal-close { color: var(--text-muted); font-size: 1.2rem; transition: var(--transition); }
.modal-close:hover { color: var(--accent-red); }

/* ============================================
   UTILIDADES
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-cyan { color: var(--accent-cyan); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--accent-green); }
.text-danger { color: var(--accent-red); }
.text-warning { color: var(--accent-orange); }
.fw-bold { font-weight: 700; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-10 { gap: 10px; }
.gap-20 { gap: 20px; }
.hidden { display: none !important; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .cart-grid, .checkout-grid { grid-template-columns: 1fr; }
    .product-detail-grid { grid-template-columns: 1fr; }
    .product-gallery { position: static; }
}

@media (max-width: 768px) {
    .topbar { display: none; }
    .header-inner { flex-wrap: wrap; }
    .search-form { order: 3; flex: 0 0 100%; max-width: 100%; }
    .menu-toggle { display: flex; }
    .navbar {
        position: fixed; top: 0; left: -100%; bottom: 0;
        width: 280px; z-index: 9999;
        background: var(--bg-secondary);
        border-right: 1px solid var(--border-color);
        padding-top: 60px;
        transition: left 0.3s ease;
        overflow-y: auto;
    }
    .navbar.open { left: 0; }
    .nav-overlay.active { display: block; }
    .nav-menu { flex-direction: column; align-items: stretch; gap: 0; }
    .nav-link { border-bottom: 1px solid var(--border-color); border-left: 3px solid transparent; }
    .nav-link:hover, .nav-link.active { border-left-color: var(--accent-cyan); border-bottom-color: var(--border-color); }
    .hero { min-height: 400px; }
    .hero-stats { gap: 20px; }
    .products-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
    .payment-methods { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; height: auto; position: static; }
}

@media (max-width: 480px) {
    .products-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .hero-btns { flex-direction: column; }
    .payment-methods { grid-template-columns: 1fr; }
    .categories-grid { grid-template-columns: 1fr 1fr; }
}