/* CSS Variables */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #0f172a;
    --accent: #f59e0b;
    --accent-light: #fbbf24;
    --success: #10b981;
    --danger: #ef4444;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --transition: all 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
}

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

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--secondary);
}

.logo-icon {
    font-size: 1.5rem;
}

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

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-600);
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: var(--transition);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: var(--radius);
    transition: var(--transition);
    white-space: nowrap;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

.btn-accent {
    background: var(--accent);
    color: var(--white);
}

.btn-accent:hover {
    background: var(--accent-light);
}

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    padding: 4rem 0 5rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(37, 99, 235, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

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

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    color: var(--secondary);
    margin-bottom: 1.25rem;
}

.hero .highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* Filter Bar */
.filter-bar {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 1rem 0;
    position: sticky;
    top: 72px;
    z-index: 90;
}

.filter-content {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
    white-space: nowrap;
}

.filter-select {
    padding: 0.5rem 2rem 0.5rem 0.75rem;
    font-size: 0.875rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--gray-700);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    transition: var(--transition);
}

.filter-select:hover {
    border-color: var(--primary);
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.view-toggle {
    display: flex;
    gap: 0.25rem;
    margin-left: auto;
    background: var(--gray-100);
    padding: 0.25rem;
    border-radius: var(--radius-sm);
}

.view-btn {
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    color: var(--gray-500);
    transition: var(--transition);
}

.view-btn:hover {
    color: var(--gray-700);
}

.view-btn.active {
    background: var(--white);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.view-btn svg {
    fill: currentColor;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.section-header p {
    color: var(--gray-500);
}

/* Products Section */
.products-section {
    padding: 3rem 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* Product Card */
.product-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.product-image {
    position: relative;
    padding: 1.5rem;
    background: var(--gray-50);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 180px;
}

.product-image-placeholder {
    width: 100%;
    height: 140px;
    background: linear-gradient(135deg, var(--gray-200) 0%, var(--gray-100) 100%);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.product-badges {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.badge {
    padding: 0.25rem 0.625rem;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge-popular {
    background: var(--accent);
    color: var(--white);
}

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

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

.product-compare-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 32px;
    height: 32px;
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.product-compare-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

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

.product-content {
    padding: 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-brand {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.product-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.product-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.spec-tag {
    padding: 0.25rem 0.5rem;
    font-size: 0.6875rem;
    background: var(--gray-100);
    color: var(--gray-600);
    border-radius: var(--radius-sm);
}

.product-features {
    list-style: none;
    margin-bottom: 1rem;
    flex: 1;
}

.product-features li {
    font-size: 0.8125rem;
    color: var(--gray-600);
    padding: 0.25rem 0;
    padding-left: 1.25rem;
    position: relative;
}

.product-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 600;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.stars {
    color: var(--accent);
    font-size: 0.875rem;
}

.rating-count {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-100);
    margin-top: auto;
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
}

.product-price .original {
    font-size: 0.875rem;
    color: var(--gray-400);
    text-decoration: line-through;
    font-weight: 400;
    margin-left: 0.5rem;
}

.btn-buy {
    flex-shrink: 0;
}

/* Products Table View */
.products-table-wrapper {
    overflow-x: auto;
}

.products-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.products-table th,
.products-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.products-table th {
    font-weight: 600;
    color: var(--gray-600);
    background: var(--gray-50);
    white-space: nowrap;
}

.products-table tbody tr {
    transition: var(--transition);
}

.products-table tbody tr:hover {
    background: var(--gray-50);
}

.products-table .product-name {
    font-weight: 600;
    color: var(--secondary);
}

.products-table .product-brand-cell {
    color: var(--primary);
    font-weight: 500;
}

.products-table .price-cell {
    font-weight: 700;
    color: var(--secondary);
}

/* Compare Section */
.compare-section {
    padding: 4rem 0;
    background: var(--gray-50);
}

.compare-slots {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.compare-slot {
    position: relative;
}

.compare-select {
    width: 100%;
    padding: 0.75rem 2rem 0.75rem 1rem;
    font-size: 0.875rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    background: var(--white);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    transition: var(--transition);
}

.compare-select:focus {
    outline: none;
    border-color: var(--primary);
}

.compare-remove {
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    background: var(--gray-200);
    border-radius: 50%;
    font-size: 1rem;
    line-height: 1;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
}

.compare-remove:hover {
    background: var(--danger);
    color: var(--white);
}

.compare-table-wrapper {
    overflow-x: auto;
}

.compare-empty {
    text-align: center;
    color: var(--gray-500);
    padding: 3rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--gray-200);
}

.compare-table {
    width: 100%;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.compare-table th,
.compare-table td {
    padding: 1rem 1.25rem;
    text-align: center;
    border-bottom: 1px solid var(--gray-100);
}

.compare-table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-600);
}

.compare-table th:first-child,
.compare-table td:first-child {
    text-align: left;
    font-weight: 500;
    color: var(--gray-700);
    background: var(--gray-50);
    position: sticky;
    left: 0;
}

.compare-table .product-header {
    background: var(--white);
    padding: 1.5rem;
}

.compare-table .product-header img {
    width: 80px;
    height: 60px;
    object-fit: contain;
    margin: 0 auto 0.75rem;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
}

.compare-table .compare-product-name {
    font-weight: 600;
    color: var(--secondary);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

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

.compare-table .check {
    color: var(--success);
    font-weight: bold;
}

.compare-table .cross {
    color: var(--gray-300);
}

/* Quiz Section */
.quiz-section {
    padding: 4rem 0;
}

.quiz-card {
    max-width: 700px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.quiz-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

.quiz-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.quiz-header p {
    opacity: 0.9;
}

.quiz-progress {
    padding: 1.5rem 2rem 0;
}

.progress-bar {
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 3px;
    transition: width 0.3s ease;
    width: 20%;
}

.progress-text {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.quiz-content {
    padding: 2rem;
}

.quiz-question {
    margin-bottom: 1.5rem;
}

.quiz-question h3 {
    font-size: 1.125rem;
    color: var(--secondary);
    margin-bottom: 1.25rem;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.quiz-option {
    display: flex;
    align-items: center;
    padding: 1rem 1.25rem;
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.quiz-option:hover {
    border-color: var(--primary);
    background: var(--white);
}

.quiz-option.selected {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.05);
}

.quiz-option input {
    display: none;
}

.quiz-option-radio {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-radius: 50%;
    margin-right: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.quiz-option.selected .quiz-option-radio {
    border-color: var(--primary);
}

.quiz-option.selected .quiz-option-radio::after {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
}

.quiz-option-text {
    font-weight: 500;
    color: var(--gray-700);
}

.quiz-nav {
    display: flex;
    justify-content: space-between;
    padding: 0 2rem 2rem;
}

.quiz-results {
    padding: 2rem;
    text-align: center;
}

.quiz-results h3 {
    font-size: 1.25rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.quiz-results p {
    color: var(--gray-600);
    margin-bottom: 2rem;
}

.quiz-result-card {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: left;
}

.quiz-result-card .product-title {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.quiz-result-card .match-score {
    display: inline-block;
    background: var(--success);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.restart-quiz {
    margin-top: 1rem;
}

/* Brands Section */
.brands-section {
    padding: 4rem 0;
    background: var(--gray-50);
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.25rem;
}

.brand-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.brand-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.brand-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.brand-logo.samsung { color: #1428a0; }
.brand-logo.lg { color: #a50034; }
.brand-logo.sony { color: #000000; }
.brand-logo.hisense { color: #00a651; }
.brand-logo.tcl { color: #003366; }

.brand-count {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* Guide Section */
.guide-section {
    padding: 4rem 0;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.guide-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition);
}

.guide-card:hover {
    box-shadow: var(--shadow-md);
}

.guide-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.guide-card h3 {
    font-size: 1.125rem;
    color: var(--secondary);
    margin-bottom: 1rem;
}

.guide-card p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 0.75rem;
}

.guide-card p:last-child {
    margin-bottom: 0;
}

/* SEO Section */
.seo-section {
    padding: 4rem 0;
    background: var(--gray-50);
}

.seo-content {
    max-width: 900px;
    margin: 0 auto;
}

.seo-content h2 {
    font-size: 1.75rem;
    color: var(--secondary);
    margin-bottom: 1.5rem;
}

.seo-content h3 {
    font-size: 1.25rem;
    color: var(--secondary);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.seo-content p {
    color: var(--gray-600);
    margin-bottom: 1rem;
    line-height: 1.8;
}

/* Footer */
.footer {
    background: var(--secondary);
    color: var(--gray-300);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-brand p {
    font-size: 0.875rem;
    line-height: 1.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.footer-column a {
    display: block;
    font-size: 0.875rem;
    padding: 0.375rem 0;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.8125rem;
}

.affiliate-disclosure {
    margin-top: 0.5rem;
    opacity: 0.7;
}

/* Mobile Menu */
.mobile-menu-overlay {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.mobile-nav {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mobile-nav-link {
    font-size: 1.125rem;
    font-weight: 500;
    padding: 1rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

.mobile-nav-link:hover {
    background: var(--gray-100);
    color: var(--primary);
}

/* Responsive */
@media (max-width: 1024px) {
    .compare-slots {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 3rem 0 4rem;
    }

    .hero-stats {
        gap: 2rem;
    }

    .filter-bar {
        position: relative;
        top: auto;
    }

    .filter-content {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-group {
        width: 100%;
    }

    .filter-select {
        flex: 1;
    }

    .view-toggle {
        margin-left: 0;
        justify-content: center;
    }

    .compare-slots {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-header h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card {
    animation: fadeIn 0.3s ease forwards;
}

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}