/**
 * Popular Electronics - Premium Dark Theme
 * Luxury Electronics Store CSS
 * 
 * Color Palette:
 * - Primary Red: #e31837
 * - Dark BG: #0d0d0d
 * - Lighter Dark: #1a1a1a
 * - Card BG: #242424
 * - Text Light: #ffffff
 * - Text Muted: #8a8a8a
 */

/* ==========================================
   CSS Variables & Root Styles
   ========================================== */
:root {
    /* Colors */
    --primary: #e31837;
    --primary-dark: #b81430;
    --primary-light: #ff2d4d;
    --secondary: #ffffff;
    --dark: #0d0d0d;
    --dark-lighter: #1a1a1a;
    --dark-card: #242424;
    --dark-border: #333333;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #6a6a6a;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #e31837 0%, #ff4757 100%);
    --gradient-dark: linear-gradient(180deg, #1a1a1a 0%, #0d0d0d 100%);
    --gradient-card: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 100%);
    --gradient-hero: radial-gradient(ellipse at center, #2a1a1a 0%, #0d0d0d 70%);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 30px rgba(227, 24, 55, 0.3);
    --shadow-glow-lg: 0 0 60px rgba(227, 24, 55, 0.4);
    
    /* Typography */
    --font-primary: 'Urbanist', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Z-Index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-toast: 400;
    --z-tooltip: 500;
}

/* ==========================================
   Base Styles & Reset
   ========================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-primary);
    background: var(--dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.loading {
    overflow: hidden;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

ul, ol {
    list-style: none;
}

/* ==========================================
   Preloader
   ========================================== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-logo {
    width: 120px;
    height: auto;
    margin-bottom: 30px;
    animation: pulse 1.5s ease-in-out infinite;
}

.preloader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--dark-card);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.preloader-text {
    margin-top: 20px;
    font-size: 0.875rem;
    color: var(--text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(0.95); }
}

/* ==========================================
   Typography
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

.display-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-style: italic;
}

.section-label {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(227, 24, 55, 0.15);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(227, 24, 55, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(227, 24, 55, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--dark-border);
}

.btn-secondary:hover {
    background: var(--dark-card);
    border-color: var(--text-secondary);
    transform: translateY(-2px);
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline-primary:hover {
    background: var(--primary);
    color: white;
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: 50%;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1rem;
}

/* ==========================================
   Header & Navigation
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-sticky);
    transition: all var(--transition-base);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.header.scrolled {
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
}

.header.scrolled .header-inner {
    padding: 12px 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-text span {
    color: var(--primary);
}

/* Desktop Navigation */
.nav-desktop {
    display: none;
}

@media (min-width: 1024px) {
    .nav-desktop {
        display: flex;
        align-items: center;
        gap: 8px;
    }
}

.nav-link {
    padding: 10px 18px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 220px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-lg);
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-item {
    display: block;
    padding: 12px 16px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-dropdown-item:hover {
    background: var(--dark-lighter);
    color: var(--text-primary);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    position: relative;
}

.header-btn:hover {
    background: var(--dark-card);
    color: var(--text-primary);
}

.header-btn .badge {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 18px;
    height: 18px;
    background: var(--primary);
    color: white;
    font-size: 0.6875rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 24px;
    padding: 8px;
    box-sizing: content-box;
}

.menu-toggle span {
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (min-width: 1024px) {
    .menu-toggle {
        display: none;
    }
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark);
    z-index: 999;
    padding: 100px 24px 24px;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-nav-link {
    display: block;
    padding: 16px 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--dark-border);
}

.mobile-nav-submenu {
    padding-left: 20px;
}

.mobile-nav-submenu a {
    display: block;
    padding: 12px 0;
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
    background: var(--gradient-hero);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(227, 24, 55, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(227, 24, 55, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.2;
    filter: blur(2px);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero .section-label {
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

.hero-title .highlight {
    display: block;
    font-family: var(--font-display);
    font-style: italic;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.6s;
    opacity: 0;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.8s;
    opacity: 0;
}

/* Hero Slider */
.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

.hero-slide.active {
    opacity: 1;
}

.hero-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: bounce 2s infinite;
}

.scroll-indicator svg {
    width: 24px;
    height: 24px;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(227, 24, 55, 0.3); }
    50% { box-shadow: 0 0 40px rgba(227, 24, 55, 0.5); }
}

/* Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }
.animate-delay-3 { transition-delay: 0.3s; }
.animate-delay-4 { transition-delay: 0.4s; }
.animate-delay-5 { transition-delay: 0.5s; }

/* ==========================================
   Sections
   ========================================== */
.section {
    padding: 80px 24px;
    position: relative;
}

@media (min-width: 768px) {
    .section {
        padding: 120px 40px;
    }
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-description {
    color: var(--text-secondary);
    font-size: 1.0625rem;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* ==========================================
   Product Cards
   ========================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.product-card {
    background: var(--gradient-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.product-card-image {
    position: relative;
    padding-top: 100%;
    background: var(--dark-lighter);
    overflow: hidden;
}

.product-card-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-card-image img {
    transform: scale(1.05);
}

.product-card-badges {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    z-index: 2;
}

.product-badge {
    padding: 4px 12px;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--radius-full);
}

.product-badge.new {
    background: var(--primary);
    color: white;
}

.product-badge.bestseller {
    background: var(--success);
    color: white;
}

.product-badge.featured {
    background: var(--warning);
    color: #000;
}

.product-card-actions {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    opacity: 0;
    transform: translateX(10px);
    transition: all var(--transition-fast);
    z-index: 2;
}

.product-card:hover .product-card-actions {
    opacity: 1;
    transform: translateX(0);
}

.product-action-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.9);
    color: var(--dark);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.product-action-btn:hover {
    background: var(--primary);
    color: white;
}

.product-action-btn.active {
    background: var(--primary);
    color: white;
}

.product-card-body {
    padding: 20px;
}

.product-card-category {
    font-size: 0.75rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.product-card-title {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--dark-border);
}

.product-card-price {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
}

/* ==========================================
   Category Cards
   ========================================== */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.category-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    padding: 32px 24px;
    text-align: center;
    transition: all var(--transition-base);
}

.category-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.category-card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(227, 24, 55, 0.1);
    color: var(--primary);
    font-size: 1.5rem;
    border-radius: 50%;
    transition: all var(--transition-base);
}

.category-card:hover .category-card-icon {
    background: var(--primary);
    color: white;
    transform: scale(1.1);
}

.category-card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.category-card-count {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ==========================================
   About Section
   ========================================== */
.about-section {
    background: var(--dark-lighter);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
}

@media (min-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.about-images {
    position: relative;
}

.about-image-main {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image-secondary {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 60%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 4px solid var(--dark-lighter);
    box-shadow: var(--shadow-lg);
}

.about-content {
    padding: 20px 0;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.about-feature {
    display: flex;
    gap: 16px;
}

.about-feature-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(227, 24, 55, 0.1);
    color: var(--primary);
    border-radius: var(--radius-lg);
}

.about-feature-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.about-feature-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ==========================================
   Steps Section (How We Work)
   ========================================== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    counter-reset: step;
}

.step-card {
    position: relative;
    padding: 32px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.step-card:hover {
    border-color: var(--primary);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 32px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    font-size: 1.125rem;
    font-weight: 700;
    border-radius: 50%;
    box-shadow: var(--shadow-glow);
}

.step-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 16px 0 12px;
}

.step-text {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==========================================
   Stats Section
   ========================================== */
.stats-section {
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="%23e31837" opacity="0.03" x="0" y="0" width="50" height="50"/><rect fill="%23e31837" opacity="0.03" x="50" y="50" width="50" height="50"/></svg>');
    background-size: 100px 100px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    position: relative;
    z-index: 1;
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

/* ==========================================
   Testimonials
   ========================================== */
.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    padding: 40px;
    text-align: center;
}

.testimonial-quote {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    font-style: italic;
}

.testimonial-quote::before {
    content: '"';
    display: block;
    font-size: 4rem;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.5;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.testimonial-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--dark-lighter);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.5rem;
}

.testimonial-name {
    font-size: 1rem;
    font-weight: 600;
}

.testimonial-title {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ==========================================
   Video Section
   ========================================== */
.video-section {
    background: var(--dark-lighter);
}

.video-wrapper {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.video-thumbnail {
    position: relative;
    padding-top: 56.25%;
    background: var(--dark-card);
}

.video-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    transition: all var(--transition-base);
    animation: glow 2s infinite;
}

.video-play-btn:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

/* ==========================================
   Contact Section
   ========================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
}

@media (min-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-info-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.contact-info-card:hover {
    border-color: var(--primary);
}

.contact-info-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(227, 24, 55, 0.1);
    color: var(--primary);
    border-radius: var(--radius-lg);
    font-size: 1.25rem;
}

.contact-info-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-info-text {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

/* Contact Form */
.contact-form {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    padding: 40px;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    font-size: 1rem;
    background: var(--dark-lighter);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(227, 24, 55, 0.2);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    background: var(--dark-lighter);
    border-top: 1px solid var(--dark-border);
    padding-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.footer-phone {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.footer-phone-note {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-card);
    color: var(--text-secondary);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid var(--dark-border);
    text-align: center;
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ==========================================
   Mobile Bottom Navigation
   ========================================== */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--dark-border);
    padding: 8px 0;
    z-index: var(--z-sticky);
    display: flex;
    justify-content: space-around;
    padding-bottom: max(8px, env(safe-area-inset-bottom));
}

@media (min-width: 1024px) {
    .mobile-bottom-nav {
        display: none;
    }
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    color: var(--text-muted);
    font-size: 0.6875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
}

.bottom-nav-item.active,
.bottom-nav-item:hover {
    color: var(--primary);
}

.bottom-nav-item svg {
    width: 24px;
    height: 24px;
}

.bottom-nav-center {
    position: relative;
    top: -20px;
}

.bottom-nav-center-btn {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(227, 24, 55, 0.4);
}

/* Add padding to body for bottom nav */
@media (max-width: 1023px) {
    body {
        padding-bottom: 80px;
    }
}

/* ==========================================
   WhatsApp Float Button
   ========================================== */
.whatsapp-float {
    position: fixed;
    bottom: 100px;
    right: 24px;
    z-index: var(--z-sticky);
}

@media (min-width: 1024px) {
    .whatsapp-float {
        bottom: 32px;
    }
}

.whatsapp-btn {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: white;
    border-radius: 50%;
    font-size: 2rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: all var(--transition-base);
    animation: float 3s ease-in-out infinite;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
}

/* ==========================================
   Back to Top
   ========================================== */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 96px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-card);
    color: var(--text-secondary);
    border: 1px solid var(--dark-border);
    border-radius: 50%;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-sticky);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

@media (min-width: 1024px) {
    .back-to-top {
        bottom: 32px;
    }
}

/* ==========================================
   Modal
   ========================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

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

.modal {
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--dark-border);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--dark-lighter);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--dark-border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ==========================================
   Toast Notifications
   ========================================== */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transform: translateX(120%);
    transition: transform var(--transition-base);
}

.toast.show {
    transform: translateX(0);
}

.toast-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.toast-success .toast-icon { color: var(--success); }
.toast-error .toast-icon { color: var(--error); }
.toast-warning .toast-icon { color: var(--warning); }

.toast-message {
    font-size: 0.9375rem;
}

.toast-close {
    margin-left: auto;
    color: var(--text-muted);
    padding: 4px;
}

/* ==========================================
   Search Overlay
   ========================================== */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: var(--z-modal);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 120px 24px 24px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

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

.search-container {
    width: 100%;
    max-width: 600px;
    transform: translateY(-20px);
    transition: transform var(--transition-base);
}

.search-overlay.active .search-container {
    transform: translateY(0);
}

.search-input-wrapper {
    position: relative;
}

.search-input {
    width: 100%;
    padding: 20px 24px 20px 60px;
    font-size: 1.25rem;
    background: var(--dark-card);
    border: 2px solid var(--dark-border);
    border-radius: var(--radius-full);
    color: var(--text-primary);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
}

.search-icon {
    position: absolute;
    left: 24px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-close {
    position: absolute;
    top: 24px;
    right: 24px;
    color: var(--text-secondary);
    font-size: 2rem;
}

/* ==========================================
   Page Header (Breadcrumb)
   ========================================== */
.page-header {
    padding: 120px 24px 60px;
    background: var(--gradient-hero);
    text-align: center;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.breadcrumb a {
    color: var(--text-secondary);
}

.breadcrumb a:hover {
    color: var(--primary);
}

.page-title {
    font-size: clamp(2rem, 5vw, 3rem);
}

/* ==========================================
   Utilities
   ========================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.d-none { display: none; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.hidden { display: none !important; }
.visible { display: block !important; }

/* ==========================================
   Responsive Utilities
   ========================================== */
@media (max-width: 767px) {
    .hide-mobile { display: none !important; }
}

@media (min-width: 768px) {
    .hide-desktop { display: none !important; }
}

/* ==========================================
   Loading States
   ========================================== */
.skeleton {
    background: linear-gradient(90deg, var(--dark-card) 25%, var(--dark-lighter) 50%, var(--dark-card) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ==========================================
   Custom Scrollbar
   ========================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark);
}

::-webkit-scrollbar-thumb {
    background: var(--dark-card);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--dark-border);
}

/* ==========================================
   Selection
   ========================================== */
::selection {
    background: var(--primary);
    color: white;
}

/* ==========================================
   Focus States
   ========================================== */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}