/* ========================================
   CSS Variables & Reset
   ======================================== */
:root {
    --primary: #1a1a1a;
    --primary-light: #2d2d2d;
    --secondary: #f5f5f5;
    --accent: #8b7355;
    --accent-light: #a68b6a;
    --text: #1a1a1a;
    --text-light: #666666;
    --text-muted: #999999;
    --background: #ffffff;
    --background-alt: #fafafa;
    --border: #e5e5e5;
    --border-dark: #d0d0d0;
    --success: #4caf50;
    --warning: #ff9800;
    --error: #f44336;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition: 0.3s ease;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

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

ul {
    list-style: none;
}

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

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--primary);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h3 {
    font-size: 1.25rem;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition);
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

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

.btn-accent:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary);
}

.logo-sub {
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 3px;
    color: var(--text-light);
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-light);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition);
}

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

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--primary);
    transition: all var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, var(--secondary) 0%, #e8e4e0 100%);
    z-index: -1;
    clip-path: polygon(20% 0, 100% 0, 100% 100%, 0% 100%);
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    margin-bottom: 24px;
}

.highlight {
    color: var(--accent);
    position: relative;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

/* ========================================
   Section Styles
   ======================================== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header p {
    color: var(--text-light);
    margin-top: 12px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   Products Section
   ======================================== */
.products-section {
    background: var(--background-alt);
}

.filters {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    align-items: center;
    padding: 20px 24px;
    background: var(--background);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.filter-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-light);
}

.filter-group select {
    padding: 10px 36px 10px 14px;
    font-size: 14px;
    font-family: inherit;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--background);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23666' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    cursor: pointer;
    transition: border-color var(--transition);
}

.filter-group select:hover,
.filter-group select:focus {
    border-color: var(--primary);
    outline: none;
}

.view-toggle {
    display: flex;
    gap: 8px;
    margin-left: auto;
}

.view-btn {
    padding: 10px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: all var(--transition);
}

.view-btn:hover {
    color: var(--text);
    background: var(--secondary);
}

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

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

.product-card {
    background: var(--background);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    position: relative;
}

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

.product-image {
    position: relative;
    aspect-ratio: 1;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image-placeholder {
    font-size: 64px;
    opacity: 0.3;
}

.product-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    background: var(--accent);
    color: var(--background);
    border-radius: var(--radius-sm);
}

.product-compare-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--background);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    opacity: 0;
}

.product-card:hover .product-compare-btn {
    opacity: 1;
}

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

.product-compare-btn.active {
    background: var(--accent);
    color: var(--background);
    opacity: 1;
}

.product-info {
    padding: 24px;
}

.product-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.product-style,
.product-color {
    font-size: 13px;
    color: var(--text-muted);
    padding: 4px 10px;
    background: var(--secondary);
    border-radius: var(--radius-sm);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 16px;
}

.stars {
    color: #f5c518;
    font-size: 14px;
}

.rating-text {
    font-size: 13px;
    color: var(--text-muted);
}

.product-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
}

.product-price .price-label {
    font-size: 13px;
    font-weight: 400;
    color: var(--text-muted);
}

.product-actions {
    display: flex;
    gap: 12px;
}

.product-actions .btn {
    flex: 1;
}

/* Product Table */
.product-table-container {
    overflow-x: auto;
    background: var(--background);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.product-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.product-table th,
.product-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.product-table th {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--secondary);
}

.product-table tr:last-child td {
    border-bottom: none;
}

.product-table tr:hover td {
    background: var(--background-alt);
}

.table-product-name {
    display: flex;
    align-items: center;
    gap: 16px;
}

.table-product-thumb {
    width: 60px;
    height: 60px;
    background: var(--secondary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    opacity: 0.3;
    flex-shrink: 0;
}

.table-compare-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

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

.table-compare-btn.active {
    border-color: var(--accent);
    background: var(--accent);
    color: var(--background);
}

.hidden {
    display: none !important;
}

/* ========================================
   Quiz Section
   ======================================== */
.quiz-section {
    background: var(--background);
}

.quiz-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--background);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-lg);
}

.quiz-progress {
    margin-bottom: 40px;
}

.progress-bar {
    height: 8px;
    background: var(--secondary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 4px;
    transition: width 0.5s ease;
    width: 20%;
}

.progress-text {
    font-size: 14px;
    color: var(--text-muted);
}

.quiz-question {
    margin-bottom: 32px;
}

.quiz-question h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.quiz-options {
    display: grid;
    gap: 16px;
}

.quiz-option {
    padding: 20px 24px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 15px;
    text-align: left;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 16px;
}

.quiz-option:hover {
    border-color: var(--accent);
    background: rgba(139, 115, 85, 0.05);
}

.quiz-option.selected {
    border-color: var(--accent);
    background: rgba(139, 115, 85, 0.1);
}

.quiz-option-icon {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition);
}

.quiz-option.selected .quiz-option-icon {
    border-color: var(--accent);
    background: var(--accent);
}

.quiz-option.selected .quiz-option-icon::after {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--background);
    border-radius: 50%;
}

.quiz-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 32px;
}

.quiz-result {
    text-align: center;
    padding: 40px 0;
}

.result-icon {
    width: 80px;
    height: 80px;
    background: var(--success);
    color: var(--background);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    margin: 0 auto 24px;
}

.quiz-result h3 {
    font-size: 1.75rem;
    margin-bottom: 24px;
}

.result-product-card {
    background: var(--secondary);
    border-radius: var(--radius-md);
    padding: 32px;
    text-align: left;
    margin-bottom: 24px;
}

.result-product-card h4 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.result-product-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

/* ========================================
   Compare Section
   ======================================== */
.compare-section {
    background: var(--background-alt);
}

.compare-slots {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.compare-slot {
    min-height: 300px;
    background: var(--background);
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
}

.compare-slot:hover {
    border-color: var(--accent);
}

.compare-slot.filled {
    border-style: solid;
    border-color: var(--border);
    cursor: default;
}

.slot-placeholder {
    text-align: center;
    color: var(--text-muted);
}

.plus-icon {
    display: block;
    font-size: 48px;
    font-weight: 300;
    margin-bottom: 8px;
}

.slot-content {
    padding: 24px;
    width: 100%;
    text-align: center;
    position: relative;
}

.slot-remove {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-muted);
    transition: all var(--transition);
}

.slot-remove:hover {
    background: var(--error);
    color: var(--background);
}

.slot-image {
    width: 120px;
    height: 120px;
    background: var(--secondary);
    border-radius: var(--radius-md);
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    opacity: 0.3;
}

.slot-name {
    font-weight: 600;
    margin-bottom: 8px;
}

.slot-price {
    color: var(--accent);
    font-weight: 600;
}

.compare-table-container {
    overflow-x: auto;
    background: var(--background);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
}

.compare-table th,
.compare-table td {
    padding: 16px 24px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.compare-table th:first-child,
.compare-table td:first-child {
    text-align: left;
    font-weight: 600;
    background: var(--secondary);
    min-width: 150px;
}

.compare-table tr:last-child td {
    border-bottom: none;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 24px;
}

.modal-content {
    background: var(--background);
    border-radius: var(--radius-lg);
    max-width: 800px;
    width: 100%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.modal-header h3 {
    font-size: 1.25rem;
}

.modal-close {
    font-size: 28px;
    color: var(--text-muted);
    transition: color var(--transition);
}

.modal-close:hover {
    color: var(--text);
}

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

.modal-products {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.modal-product-item {
    padding: 20px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}

.modal-product-item:hover {
    border-color: var(--accent);
}

.modal-product-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.modal-product-thumb {
    width: 80px;
    height: 80px;
    background: var(--secondary);
    border-radius: var(--radius-sm);
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    opacity: 0.3;
}

.modal-product-name {
    font-weight: 500;
    font-size: 14px;
    margin-bottom: 4px;
}

.modal-product-price {
    font-size: 14px;
    color: var(--accent);
    font-weight: 600;
}

/* ========================================
   Features Section
   ======================================== */
.features-section {
    background: var(--background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.feature-card {
    text-align: center;
    padding: 40px 32px;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: var(--accent);
}

.feature-card h3 {
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-light);
    font-size: 15px;
}

/* ========================================
   Size Guide Section
   ======================================== */
.size-guide-section {
    background: var(--background-alt);
}

.size-table-wrapper {
    overflow-x: auto;
    background: var(--background);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.size-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 500px;
}

.size-table th,
.size-table td {
    padding: 16px 24px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.size-table th {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--secondary);
}

.size-table tr:last-child td {
    border-bottom: none;
}

.size-table tr:hover td {
    background: var(--background-alt);
}

.size-note {
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-muted);
    text-align: center;
}

/* ========================================
   SEO Section
   ======================================== */
.seo-section {
    background: var(--background);
    padding: 80px 0;
}

.seo-content {
    max-width: 800px;
    margin: 0 auto;
}

.seo-content h2 {
    font-size: 2rem;
    margin-bottom: 24px;
    text-align: center;
}

.seo-content h3 {
    font-size: 1.25rem;
    margin-top: 32px;
    margin-bottom: 16px;
    color: var(--primary);
}

.seo-content p {
    margin-bottom: 16px;
    color: var(--text-light);
    line-height: 1.8;
}

.seo-list {
    margin: 20px 0;
    padding-left: 24px;
}

.seo-list li {
    margin-bottom: 12px;
    color: var(--text-light);
    line-height: 1.7;
    position: relative;
    padding-left: 20px;
}

.seo-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--primary);
    color: var(--secondary);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand p {
    margin-top: 16px;
    color: var(--text-muted);
    max-width: 300px;
}

.footer-brand .logo-text {
    color: var(--secondary);
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-column h4 {
    color: var(--secondary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column a {
    color: var(--text-muted);
    font-size: 14px;
    transition: color var(--transition);
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.affiliate-disclosure {
    font-size: 12px;
    opacity: 0.7;
}

/* ========================================
   Back to Top Button
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--background);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    background: var(--accent);
    transform: translateY(-4px);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 992px) {
    .compare-slots {
        grid-template-columns: repeat(2, 1fr);
    }

    .compare-slot:last-child {
        grid-column: span 2;
        max-width: 50%;
        margin: 0 auto;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--background);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
    }

    .nav-links.active {
        display: flex;
    }

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

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

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

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

    .hero {
        min-height: auto;
        padding: 120px 0 60px;
    }

    .hero-bg {
        display: none;
    }

    .hero-stats {
        gap: 32px;
    }

    .hero-cta {
        flex-direction: column;
    }

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

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

    .filter-group {
        flex-direction: column;
        align-items: flex-start;
    }

    .filter-group select {
        width: 100%;
    }

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

    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .quiz-container {
        padding: 32px 24px;
    }

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

    .compare-slot:last-child {
        grid-column: span 1;
        max-width: 100%;
    }

    section {
        padding: 60px 0;
    }

    .footer-links {
        flex-direction: column;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .stat {
        flex-direction: row;
        gap: 12px;
        align-items: center;
    }

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

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

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card {
    animation: fadeIn 0.5s ease forwards;
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }
.product-card:nth-child(5) { animation-delay: 0.5s; }
.product-card:nth-child(6) { animation-delay: 0.6s; }