/* CSS Variables */
:root {
    --primary: #f59e0b;
    --primary-dark: #d97706;
    --primary-light: #fbbf24;
    --secondary: #fb923c;
    --accent: #ff6b35;
    --dark: #1f2937;
    --dark-light: #374151;
    --gray: #6b7280;
    --gray-light: #9ca3af;
    --gray-lighter: #e5e7eb;
    --white: #ffffff;
    --off-white: #f9fafb;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --gradient-warm: linear-gradient(135deg, #f59e0b 0%, #fb923c 50%, #ff6b35 100%);
    --gradient-soft: linear-gradient(135deg, #fef3c7 0%, #fed7aa 100%);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--gradient-warm);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--white);
    color: var(--dark);
    border: 2px solid var(--gray-lighter);
}

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

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

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

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

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    font-family: 'Inter', sans-serif;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    color: var(--dark-light);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: 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: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--dark);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 8rem 0 4rem;
    background: var(--gradient-soft);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark);
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 2rem;
}

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

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat {
    text-align: center;
}

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

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

/* Animated Serum Bottle */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.serum-bottle {
    position: relative;
    width: 200px;
    height: 350px;
}

.bottle-glow {
    position: absolute;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.3) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: glow 3s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

.bottle-shape {
    position: relative;
    width: 100%;
    height: 100%;
}

.bottle-cap {
    width: 50px;
    height: 30px;
    background: linear-gradient(135deg, #e5e7eb 0%, #9ca3af 100%);
    border-radius: 5px 5px 0 0;
    margin: 0 auto;
    position: relative;
}

.bottle-neck {
    width: 40px;
    height: 20px;
    background: linear-gradient(90deg, rgba(255,255,255,0.6) 0%, rgba(255,255,255,0.2) 100%);
    margin: 0 auto;
    border-radius: 0 0 5px 5px;
}

.bottle-body {
    width: 120px;
    height: 220px;
    background: linear-gradient(135deg, rgba(255, 237, 213, 0.9) 0%, rgba(254, 215, 170, 0.9) 100%);
    border-radius: 20px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 0 30px rgba(0,0,0,0.1), var(--shadow-lg);
    border: 2px solid rgba(255,255,255,0.5);
}

.liquid {
    position: absolute;
    bottom: 10px;
    left: 10px;
    right: 10px;
    height: 70%;
    background: linear-gradient(180deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
    border-radius: 15px;
    animation: liquidWave 4s ease-in-out infinite;
}

@keyframes liquidWave {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.bottle-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Playfair Display', serif;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--dark);
    text-transform: uppercase;
    letter-spacing: 1px;
    background: rgba(255,255,255,0.8);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    z-index: 1;
}

.bottle-dropper {
    width: 8px;
    height: 60px;
    background: linear-gradient(90deg, #e5e7eb 0%, #9ca3af 100%);
    margin: 0 auto;
    position: relative;
    top: -270px;
    border-radius: 0 0 3px 3px;
}

/* Benefits Section */
.benefits {
    padding: 6rem 0;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--gray);
    margin-bottom: 3rem;
}

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

.benefit-card {
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--dark);
    font-family: 'Inter', sans-serif;
    font-weight: 600;
}

.benefit-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* Products Section */
.products {
    padding: 6rem 0;
    background: var(--off-white);
}

.filter-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.filter-tab {
    padding: 0.625rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray);
    background: var(--white);
    border: 2px solid var(--gray-lighter);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.filter-tab:hover,
.filter-tab.active {
    color: var(--primary-dark);
    border-color: var(--primary);
    background: rgba(245, 158, 11, 0.1);
}

.view-toggle {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.view-btn {
    padding: 0.75rem;
    color: var(--gray);
    background: var(--white);
    border: 2px solid var(--gray-lighter);
    border-radius: var(--radius);
    transition: var(--transition);
}

.view-btn:hover,
.view-btn.active {
    color: var(--primary);
    border-color: var(--primary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

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

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius);
    z-index: 1;
}

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

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

.badge-premium {
    background: var(--dark);
    color: var(--white);
}

.product-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-soft);
    padding: 1.5rem;
}

.product-emoji {
    font-size: 5rem;
}

.product-info {
    padding: 1.5rem;
}

.product-brand {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.product-name {
    font-family: 'Inter', sans-serif;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.product-details {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.8rem;
    color: var(--gray);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.stars {
    color: var(--primary);
}

.rating-count {
    font-size: 0.8rem;
    color: var(--gray);
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1rem;
}

.product-features {
    margin-bottom: 1rem;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--gray);
    margin-bottom: 0.25rem;
}

.product-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: bold;
}

.product-cta {
    display: block;
    width: 100%;
    padding: 0.875rem;
    text-align: center;
    font-weight: 600;
    color: var(--white);
    background: var(--gradient-warm);
    border-radius: var(--radius);
    transition: var(--transition);
}

.product-cta:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

.compare-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--gray);
}

.compare-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* Products Table */
.products-table-wrapper {
    overflow-x: auto;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

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

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

.products-table th {
    background: var(--off-white);
    font-weight: 600;
    color: var(--dark);
    font-size: 0.9rem;
    white-space: nowrap;
}

.products-table td {
    font-size: 0.9rem;
    color: var(--dark-light);
}

.products-table tr:hover {
    background: rgba(245, 158, 11, 0.05);
}

.table-product {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.table-product-icon {
    font-size: 2rem;
}

.table-product-info h4 {
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.125rem;
}

.table-product-info span {
    font-size: 0.75rem;
    color: var(--gray);
}

.table-btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white);
    background: var(--primary);
    border-radius: var(--radius);
    transition: var(--transition);
}

.table-btn:hover {
    background: var(--primary-dark);
}

.hidden {
    display: none !important;
}

/* Quiz Section */
.quiz-section {
    padding: 6rem 0;
    background: var(--gradient-soft);
}

.quiz-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 3rem;
    box-shadow: var(--shadow-lg);
}

.quiz-header {
    text-align: center;
    margin-bottom: 2rem;
}

.quiz-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

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

.quiz-progress {
    margin-bottom: 2rem;
}

.progress-bar {
    height: 8px;
    background: var(--gray-lighter);
    border-radius: var(--radius);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-warm);
    transition: width 0.3s ease;
    width: 20%;
}

.progress-text {
    display: block;
    text-align: center;
    font-size: 0.85rem;
    color: var(--gray);
    margin-top: 0.5rem;
}

.quiz-content {
    min-height: 300px;
}

.quiz-question {
    text-align: center;
}

.quiz-question h3 {
    font-family: 'Inter', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--dark);
}

.quiz-options {
    display: grid;
    gap: 1rem;
}

.quiz-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--off-white);
    border: 2px solid var(--gray-lighter);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.quiz-option:hover {
    border-color: var(--primary);
    background: rgba(245, 158, 11, 0.05);
}

.quiz-option.selected {
    border-color: var(--primary);
    background: rgba(245, 158, 11, 0.1);
}

.quiz-option-icon {
    font-size: 1.5rem;
}

.quiz-option-text {
    flex: 1;
}

.quiz-option-text strong {
    display: block;
    color: var(--dark);
    margin-bottom: 0.125rem;
}

.quiz-option-text span {
    font-size: 0.85rem;
    color: var(--gray);
}

.quiz-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-lighter);
}

.quiz-results {
    text-align: center;
}

.results-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

.recommended-product {
    background: var(--off-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
}

.recommended-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--white);
    background: var(--success);
    border-radius: var(--radius);
    margin-bottom: 1rem;
}

.recommended-product h4 {
    font-family: 'Inter', sans-serif;
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.recommended-product p {
    color: var(--gray);
    margin-bottom: 1rem;
}

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

/* Compare Section */
.compare-section {
    padding: 6rem 0;
    background: var(--white);
}

.compare-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.compare-select {
    padding: 0.875rem 1rem;
    font-size: 0.95rem;
    border: 2px solid var(--gray-lighter);
    border-radius: var(--radius-md);
    background: var(--white);
    cursor: pointer;
    transition: var(--transition);
}

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

.compare-table-wrapper {
    overflow-x: auto;
    margin-top: 2rem;
}

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

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

.compare-table th {
    background: var(--off-white);
    font-weight: 600;
}

.compare-table td:first-child {
    text-align: left;
    font-weight: 500;
    background: var(--off-white);
}

.compare-table .product-header {
    background: var(--gradient-soft);
}

.compare-placeholder {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--gray);
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

/* How to Use Section */
.how-to-use {
    padding: 6rem 0;
    background: var(--off-white);
}

.steps-timeline {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 600px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.step-number {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-warm);
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
    flex-shrink: 0;
}

.step-content h3 {
    font-family: 'Inter', sans-serif;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.step-content p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* FAQ Section */
.faq-section {
    padding: 6rem 0;
    background: var(--white);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: var(--off-white);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark);
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(245, 158, 11, 0.1);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary);
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* SEO Content Section */
.seo-content {
    padding: 6rem 0;
    background: var(--off-white);
}

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

.seo-article h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--dark);
}

.seo-article h3 {
    font-family: 'Inter', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    margin: 2rem 0 1rem;
    color: var(--dark);
}

.seo-article p {
    color: var(--dark-light);
    margin-bottom: 1rem;
    line-height: 1.8;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--gray-light);
    margin-top: 1rem;
    font-size: 0.9rem;
}

.footer-links h4 {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: var(--gray-light);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--dark-light);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--gray-light);
    margin-bottom: 0.5rem;
}

.affiliate-disclosure {
    font-size: 0.75rem !important;
    opacity: 0.7;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-warm);
    color: var(--white);
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

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

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

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .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-content h1 {
        font-size: 2.5rem;
    }

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

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

    .filter-tabs {
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 1rem;
    }

    .quiz-container {
        padding: 1.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 6rem 0 3rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

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

    .btn {
        width: 100%;
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .quiz-section,
    .compare-section,
    .back-to-top {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 2rem 0;
    }

    body {
        font-size: 12pt;
    }
}