/* ==========================================================================
   HERO SPA - DESIGN SYSTEM & STYLESHEET
   ========================================================================== */

/* 1. ROOT VARIABLES & PALETTE */
:root {
    /* Color Palette - Liqui Moly High-Contrast Light Mode */
    --bg-primary: #f8fafc; /* Fondo principal gris pizarra extra claro */
    --bg-secondary: #f1f5f9; /* Fondo secundario para contrastes y alternancia */
    --bg-tertiary: #cbd5e1; /* Gris para bordes y divisiones */
    --bg-card: #ffffff; /* Tarjetas blancas limpias */
    
    --accent-cyan: #e30613; /* Rojo Liqui Moly / Acento principal para botones/llamados a la acción */
    --accent-cyan-hover: #b8050f;
    --accent-orange: #004f9f; /* Azul Liqui Moly / Acento secundario y cabecera */
    --accent-orange-glow: rgba(0, 79, 159, 0.25);
    --accent-gold: #004f9f; /* Azul para textos destacados o precios */
    --accent-gold-glow: rgba(0, 79, 159, 0.15);
    
    --text-primary: #0f172a; /* Texto principal pizarra oscuro */
    --text-secondary: #475569; /* Texto gris pizarra */
    --text-muted: #64748b; /* Texto atenuado gris medio */
    --text-dark: #ffffff; /* Texto claro para botones y fondos oscuros */
    
    --border-color: rgba(15, 23, 42, 0.08);
    --border-glow-cyan: rgba(227, 6, 19, 0.2);
    --border-glow-orange: rgba(0, 79, 159, 0.2);
    
    /* Layout & Effects */
    --font-primary: 'Outfit', sans-serif;
    --font-heading: 'Space Grotesk', sans-serif;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --glass-bg: #004f9f; /* Cabecera en azul sólido Liqui Moly */
    --glass-blur: blur(0px); /* Sin desenfoque, color sólido corporativo */
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-premium: 0 10px 30px -10px rgba(15, 23, 42, 0.05);
    --shadow-cyan: 0 4px 15px rgba(227, 6, 19, 0.3);
    --shadow-orange: 0 4px 15px rgba(0, 79, 159, 0.3);
}

/* 2. BASE RESETS & SETUP */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography Customizations */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

img, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

input, select, textarea, button {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: transparent;
}

/* Helper Utilities */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-center { text-align: center; }
.text-white { color: #ffffff !important; }
.text-gray { color: var(--text-secondary) !important; }
.text-accent { color: var(--accent-cyan) !important; }
.accent-text { color: var(--accent-cyan); }

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* 3. BUTTONS & UI COMPONENTS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: linear-gradient(135deg, #f23846 0%, var(--accent-cyan) 100%);
    color: #ffffff;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-cyan);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
}
.btn-outline:hover {
    background: rgba(227, 6, 19, 0.08);
    transform: translateY(-2px);
}

.btn-glow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: inherit;
    z-index: -1;
    opacity: 0;
    filter: blur(15px);
    transition: var(--transition-normal);
}
.btn-glow:hover::after {
    opacity: 0.6;
}

.btn-block {
    display: flex;
    width: 100%;
}

.section-tag {
    color: var(--accent-cyan);
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.15em;
    display: block;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(to right, #004f9f, var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-description {
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.section-header {
    margin-bottom: 56px;
}

/* 4. MAIN HEADER & NAV */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition-normal);
}
.main-header .btn-outline {
    border-color: rgba(255, 255, 255, 0.4);
    color: #ffffff;
}
.main-header .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
}
.main-header .btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}
.main-header .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #ffffff;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #ffffff;
}
.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-orange) 0%, #e11d48 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(255, 123, 0, 0.4);
}
.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: -0.01em;
}

.nav-menu ul {
    display: flex;
    gap: 32px;
}
.nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 0;
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-cyan);
    transition: var(--transition-normal);
}
.nav-link:hover, .nav-link.active {
    color: #ffffff;
}
.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.cart-trigger {
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
.cart-badge {
    background-color: var(--accent-orange);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 30px;
    cursor: pointer;
}
.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: #ffffff;
    transition: var(--transition-normal);
}

/* 5. HERO SECTION */
.hero-section {
    position: relative;
    padding: 180px 0 100px 0;
    min-height: 85vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at 80% 20%, rgba(227, 6, 19, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
                linear-gradient(135deg, #004f9f 0%, #00254c 100%);
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: 20%;
    left: 10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(239, 68, 68, 0.15) 0%, transparent 70%);
    z-index: 1;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 680px;
}

.hero-tag {
    display: inline-block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.25);
    color: var(--accent-cyan);
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    color: #cbd5e1; /* Gris claro en Hero oscuro */
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 580px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Hero Badge Cards Right Side */
.hero-badges-grid {
    display: grid;
    grid-template-rows: repeat(3, 1fr);
    gap: 20px;
}

.hero-badge-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: var(--transition-normal);
    position: relative;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}
.hero-badge-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-cyan);
    border-radius: 16px 0 0 16px;
    opacity: 0.5;
    transition: var(--transition-normal);
}
.hero-badge-card:hover {
    transform: translateX(5px);
    border-color: var(--accent-cyan);
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
}
.hero-badge-card:hover::before {
    height: 100%;
    background: var(--accent-orange);
    opacity: 1;
}

.badge-icon {
    font-size: 1.8rem;
    color: var(--accent-cyan);
    margin-bottom: 6px;
}

.hero-badge-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: #ffffff;
}
.hero-badge-card p {
    color: #94a3b8;
    font-size: 0.875rem;
}

/* 6. BRANDS CAROUSEL SECTION */
.brands-section {
    padding: 40px 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 5;
}

.section-subtitle {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    margin-bottom: 30px;
    text-transform: uppercase;
}

.brands-wrapper {
    overflow: hidden;
    position: relative;
    width: 100%;
    display: flex;
}
.brands-wrapper::before, .brands-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    width: 100px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}
.brands-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-secondary) 0%, transparent 100%);
}
.brands-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-secondary) 0%, transparent 100%);
}

.brands-track {
    display: flex;
    align-items: center;
    gap: 80px;
    animation: scroll 30s linear infinite;
    width: max-content;
}

.brand-item {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    transition: var(--transition-fast);
    cursor: default;
}
.brand-item:hover {
    color: var(--accent-cyan);
    text-shadow: 0 0 10px rgba(239, 68, 68, 0.4);
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-50% - 40px)); }
}

/* 7. BENEFITS SECTION */
.benefits-section {
    padding: 100px 0;
    position: relative;
}

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

.benefit-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 48px 32px;
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
    color: var(--text-primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}
.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(249, 115, 22, 0.04) 0%, transparent 60%);
    pointer-events: none;
}
.benefit-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-cyan);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.05), 0 0 15px rgba(234, 179, 8, 0.05);
}

.benefit-icon-wrapper {
    width: 60px;
    height: 60px;
    background: rgba(239, 68, 68, 0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    font-size: 1.8rem;
    margin-bottom: 28px;
    transition: var(--transition-normal);
}
.benefit-card:hover .benefit-icon-wrapper {
    background: var(--accent-cyan);
    color: white;
    transform: scale(1.05);
}

.benefit-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}
.benefit-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* 8. CATALOG SECTION */
.catalog-section {
    padding: 100px 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

/* Filter Controls Layout */
.filter-controls {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 20px;
    align-items: center;
    margin-bottom: 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 16px 24px;
    border-radius: 12px;
    box-shadow: var(--shadow-premium);
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}
.search-icon {
    position: absolute;
    left: 16px;
    color: var(--text-muted);
}
.search-box input {
    width: 100%;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 12px 16px 12px 48px;
    border-radius: 8px;
    color: var(--text-primary);
    transition: var(--transition-fast);
}
.search-box input:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
}

.category-filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.filter-btn {
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 8px;
}
.filter-btn:hover, .filter-btn.active {
    background: var(--accent-cyan);
    color: var(--text-dark);
    border-color: var(--accent-cyan);
}

.brand-select {
    padding: 12px 36px 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    appearance: none;
    width: 180px;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    transition: var(--transition-fast);
}
.brand-select:focus {
    border-color: var(--accent-cyan);
}

/* Catalog Product Grid */
.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(285px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition-slow);
    color: var(--text-primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}
.product-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05), 0 0 15px rgba(234, 179, 8, 0.02);
}

.product-brand-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(10, 15, 30, 0.8);
    border: 1px solid var(--border-color);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    border-radius: 20px;
    color: var(--text-secondary);
}

.product-icon-container {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: radial-gradient(circle, rgba(239, 68, 68, 0.05) 0%, transparent 70%);
    border-radius: 8px;
    transition: var(--transition-normal);
}
.product-card:hover .product-icon-container {
    color: var(--accent-orange);
    transform: scale(1.05);
}

.product-category-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--accent-orange);
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}

.product-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.product-spec {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: flex;
    gap: 8px;
    align-items: center;
}
.product-spec i {
    color: var(--accent-orange);
    font-size: 0.8rem;
}

.product-prices {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}
.price-row.retail {
    color: var(--text-muted);
    text-decoration: line-through;
}
.price-row.wholesale {
    font-weight: 700;
    color: var(--accent-gold);
    font-size: 1.15rem;
}
.price-row.wholesale .badge-wholesale {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.25);
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: 4px;
}

.product-actions {
    margin-top: auto;
    display: flex;
    gap: 10px;
}

.qty-control {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    overflow: hidden;
}
.qty-btn {
    width: 36px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition-fast);
}
.qty-btn:hover {
    color: var(--text-primary);
    background: rgba(0,0,0,0.03);
}
.qty-input {
    width: 40px;
    text-align: center;
    color: var(--text-primary);
    font-weight: 600;
}

.btn-add-cart {
    flex: 1;
    padding: 0 16px;
    height: 44px;
    font-size: 0.875rem;
}

.no-results {
    padding: 80px 0;
    text-align: center;
    color: var(--text-secondary);
}
.no-results i {
    font-size: 3rem;
    color: var(--accent-orange);
    margin-bottom: 20px;
}

/* 9. COTIZADOR DRAWER (SIDEBAR) */
.cart-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(10, 15, 30, 0.7);
    backdrop-filter: blur(4px);
    z-index: 990;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
}
.cart-drawer-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.cart-drawer {
    position: fixed;
    top: 0;
    right: -420px;
    width: 420px;
    height: 100vh;
    background: var(--bg-secondary);
    z-index: 1000;
    box-shadow: -10px 0 40px rgba(0,0,0,0.3);
    display: flex;
    flex-direction: column;
    transition: var(--transition-slow);
}
.cart-drawer.active {
    right: 0;
}

.drawer-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
}
.drawer-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}
.drawer-header h3 i {
    color: var(--accent-orange);
}
.close-drawer {
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
    line-height: 1;
}
.close-drawer:hover {
    color: var(--text-primary);
}

.drawer-content {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

/* Cart Items Styling */
.empty-cart-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    color: var(--text-secondary);
}
.empty-cart-state i {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: 24px;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.05); opacity: 1; }
    100% { transform: scale(1); opacity: 0.6; }
}
.empty-cart-state p {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.empty-cart-state span {
    font-size: 0.875rem;
}

.cart-items-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cart-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    gap: 16px;
    align-items: center;
    position: relative;
    transition: var(--transition-fast);
}
.cart-item:hover {
    border-color: rgba(0, 0, 0, 0.08);
}

.cart-item-icon {
    font-size: 1.8rem;
    color: var(--accent-orange);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.cart-item-info {
    flex: 1;
}
.cart-item-info h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.cart-item-price {
    font-size: 0.85rem;
    color: var(--accent-gold);
    font-weight: 600;
}
.cart-item-brand {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.cart-item-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}
.btn-delete-item {
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition-fast);
}
.btn-delete-item:hover {
    color: #ef4444;
}

/* Footer Drawer Summary */
.drawer-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-card);
}

.summary-line {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}
.summary-line.discount-line {
    color: var(--accent-orange);
}
.summary-line.total-line {
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
    margin-top: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}
.summary-line .price-val {
    font-family: var(--font-heading);
}

.discount-alert {
    background: rgba(249, 115, 22, 0.05);
    border: 1px solid rgba(249, 115, 22, 0.12);
    border-radius: 8px;
    padding: 12px;
    font-size: 0.8rem;
    color: var(--accent-orange);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    line-height: 1.4;
}

.drawer-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* 10. CONTACT SECTION & FORM */
.contact-section {
    padding: 100px 0;
    position: relative;
    background-color: var(--accent-orange);
    color: #ffffff;
}
.contact-section .section-title {
    background: linear-gradient(to right, #ffffff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.contact-section::before {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(227, 6, 19, 0.15) 0%, transparent 70%);
    z-index: 1;
    pointer-events: none;
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.info-items {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.info-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.info-item i {
    width: 48px;
    height: 48px;
    background: rgba(255, 123, 0, 0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-orange);
    font-size: 1.3rem;
    transition: var(--transition-normal);
}
.info-item:hover i {
    background: var(--accent-orange);
    color: var(--bg-primary);
    box-shadow: var(--shadow-orange);
}

.info-item h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 4px;
}
.info-item p, .contact-link {
    color: var(--text-secondary);
    font-size: 0.95rem;
}
.contact-link:hover {
    color: var(--accent-cyan);
}

/* Form Styling */
.contact-form-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 48px;
    border-radius: 16px;
    box-shadow: var(--shadow-premium);
    color: var(--text-primary);
}
.form-title {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 30px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}
.form-group input, .form-group textarea {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 14px 18px;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent-orange);
    box-shadow: 0 0 10px rgba(249, 115, 22, 0.1);
}

.form-success-alert {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    color: #34d399;
}
.form-success-alert i {
    font-size: 2rem;
}
.form-success-alert h4 {
    color: white;
    margin-bottom: 4px;
    font-size: 1.1rem;
}
.form-success-alert p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 11. FOOTER */
.main-footer {
    background-color: #050811;
    border-top: 1px solid var(--border-color);
    padding: 80px 0 0 0;
    position: relative;
    z-index: 5;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.footer-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    max-width: 320px;
}

.social-links {
    display: flex;
    gap: 12px;
}
.social-links a {
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
}
.social-links a:hover {
    background: var(--accent-cyan);
    color: var(--text-dark);
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
}

.footer-links h4, .footer-hours h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: white;
    position: relative;
    display: inline-block;
}
.footer-links h4::after, .footer-hours h4::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 24px;
    height: 2px;
    background-color: var(--accent-cyan);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.footer-links ul a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.footer-links ul a:hover {
    color: var(--accent-cyan);
    padding-left: 4px;
}

.footer-hours p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 30px 0;
}
.footer-bottom-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.footer-bottom-links {
    display: flex;
    gap: 20px;
}
.footer-bottom-links a:hover {
    color: var(--text-secondary);
}

/* 12. RESPONSIVE DESIGN (MEDIA QUERIES) */
@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    .hero-content {
        text-align: center;
        margin: 0 auto;
    }
    .hero-buttons {
        justify-content: center;
    }
    .hero-badges-grid {
        grid-template-columns: repeat(3, 1fr);
        grid-template-rows: 1fr;
    }
    .hero-badge-card::before {
        width: 100%;
        height: 4px;
        top: 0;
        left: 0;
        border-radius: 12px 12px 0 0;
    }
    .hero-badge-card:hover {
        transform: translateY(-5px);
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .main-header {
        padding: 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
        z-index: 101;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--bg-secondary);
        padding: 40px 24px;
        transition: var(--transition-slow);
        z-index: 99;
        border-top: 1px solid var(--border-color);
    }
    .nav-menu.active {
        left: 0;
    }
    .nav-menu ul {
        flex-direction: column;
        gap: 24px;
    }
    .nav-link {
        font-size: 1.3rem;
        display: block;
    }
    
    .filter-controls {
        grid-template-columns: 1fr;
    }
    .brand-select {
        width: 100%;
    }
    
    .cart-drawer {
        width: 100%;
        right: -100%;
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-container {
        padding: 24px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom-flex {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-badges-grid {
        grid-template-columns: 1fr;
    }
    
    /* Hamburger Menu Animation when Active */
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    } 
}

/* ==========================================================================
   13. LOGIN MODAL & AUTHENTICATION STYLES
   ========================================================================== */
.login-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(5, 8, 17, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
}
.login-modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.login-modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 440px;
    padding: 40px;
    border-radius: 16px;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: translateY(-30px);
    transition: var(--transition-slow);
}
.login-modal-overlay.active .login-modal-card {
    transform: translateY(0);
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
    background: transparent;
    border: none;
    line-height: 1;
    transition: var(--transition-fast);
}
.close-modal:hover {
    color: var(--text-primary);
}

.login-header {
    text-align: center;
    margin-bottom: 28px;
}
.login-icon-wrapper-header {
    width: 60px;
    height: 60px;
    background: rgba(239, 68, 68, 0.08);
    color: var(--accent-cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin: 0 auto 16px auto;
    border: 1px solid rgba(239, 68, 68, 0.15);
}
.login-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.login-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.login-help {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    gap: 10px;
    align-items: flex-start;
    margin-bottom: 24px;
    line-height: 1.4;
}
.login-help i {
    color: var(--accent-orange);
    margin-top: 2px;
}

.login-error-alert {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 8px;
    padding: 12px;
    font-size: 0.85rem;
    color: #f87171;
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 20px;
}

/* Price Placeholder when not logged in */
.price-login-placeholder {
    background: rgba(255, 255, 255, 0.02);
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    padding: 20px 16px;
    text-align: center;
    margin-bottom: 20px;
    cursor: pointer;
    transition: var(--transition-normal);
}
.price-login-placeholder:hover {
    border-color: var(--accent-cyan);
    background: rgba(239, 68, 68, 0.03);
    transform: translateY(-2px);
}
.price-login-placeholder i {
    font-size: 1.5rem;
    color: var(--accent-cyan);
    margin-bottom: 8px;
    display: inline-block;
}
.price-login-placeholder p {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.price-login-placeholder span {
    font-size: 0.75rem;
    color: var(--text-muted);
}