/* CSS Variables */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #10b981;
    --secondary-dark: #059669;
    --accent: #8b5cf6;
    --warning: #f59e0b;
    --danger: #ef4444;

    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    --white: #ffffff;
    --black: #000000;

    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #8b5cf6 100%);
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);

    --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;
    --transition-slow: 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(--gray-800);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

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

.btn-secondary {
    background: var(--white);
    color: var(--gray-800);
    border: 2px solid var(--gray-200);
}

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

.btn-amazon {
    background: #ff9900;
    color: var(--black);
    font-weight: 700;
}

.btn-amazon:hover {
    background: #e88a00;
    color: var(--black);
    transform: translateY(-2px);
}

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

/* Header */
.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(--gray-200);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--gray-900);
}

.logo:hover {
    color: var(--gray-900);
}

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

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--gray-600);
    font-weight: 500;
    font-size: 0.9375rem;
}

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

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

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

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%232563eb' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    text-align: center;
    color: var(--white);
}

.hero h1 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-300);
    max-width: 600px;
    margin: 0 auto 2rem;
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-400);
}

/* Info Bar */
.info-bar {
    background: var(--primary);
    padding: 1rem 0;
}

.info-items {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
    font-size: 0.9375rem;
    font-weight: 500;
}

.info-icon {
    font-size: 1.25rem;
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    margin-bottom: 0.75rem;
}

.section-header p {
    color: var(--gray-500);
    font-size: 1.125rem;
}

/* Products Section */
.products-section {
    background: var(--gray-50);
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-600);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
}

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

.filter-tab.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.view-toggle {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.view-btn {
    padding: 0.5rem;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--gray-400);
    transition: var(--transition);
}

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

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

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

.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition-slow);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.product-image {
    position: relative;
    height: 200px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

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

.product-badge.popular {
    background: var(--warning);
    color: var(--black);
}

.product-badge.best-value {
    background: var(--accent);
}

.product-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.product-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.product-description {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 1rem;
    flex: 1;
}

.product-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--warning);
    font-size: 0.875rem;
}

.product-rating span {
    color: var(--gray-600);
    margin-left: 0.25rem;
}

.product-concentration {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    color: var(--gray-700);
}

.product-actions {
    display: flex;
    gap: 0.75rem;
}

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

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

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

.btn-compare.active {
    background: var(--secondary);
    color: var(--white);
}

/* Products Table */
.products-table-wrapper {
    overflow-x: auto;
    background: var(--white);
    border-radius: var(--radius-xl);
    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-100);
}

.products-table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.875rem;
}

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

.products-table .product-name {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.products-table .product-icon {
    width: 40px;
    height: 40px;
    background: var(--gray-100);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.hidden {
    display: none !important;
}

/* Quiz Section */
.quiz-section {
    background: var(--gradient-hero);
    color: var(--white);
}

.quiz-container {
    max-width: 700px;
    margin: 0 auto;
}

.quiz-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.quiz-badge {
    display: inline-block;
    padding: 0.375rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    margin-bottom: 1rem;
}

.quiz-header h2 {
    color: var(--white);
    margin-bottom: 0.75rem;
}

.quiz-header p {
    color: var(--gray-300);
}

.quiz-content {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: 2rem;
    min-height: 300px;
}

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

.quiz-question h3 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.quiz-question p {
    color: var(--gray-400);
    font-size: 0.9375rem;
}

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

.quiz-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.quiz-option:hover {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.1);
}

.quiz-option.selected {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.2);
}

.quiz-option-icon {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
}

.quiz-option-text strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.quiz-option-text span {
    font-size: 0.875rem;
    color: var(--gray-400);
}

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

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

.quiz-result h3 {
    color: var(--white);
    margin-bottom: 0.5rem;
}

.quiz-result p {
    color: var(--gray-300);
    margin-bottom: 1.5rem;
}

.quiz-result-products {
    display: grid;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.quiz-result-product {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
}

.quiz-result-product span {
    font-weight: 500;
}

.quiz-restart {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.quiz-restart:hover {
    background: rgba(255, 255, 255, 0.2);
}

.quiz-progress {
    margin-top: 2rem;
    text-align: center;
}

.progress-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

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

.progress-text {
    font-size: 0.875rem;
    color: var(--gray-400);
}

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

.compare-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

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

.compare-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.compare-card.featured {
    border: 2px solid var(--primary);
}

.featured-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius);
}

.compare-header {
    padding: 2rem;
    text-align: center;
    color: var(--white);
}

.concentration-70 {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.concentration-91 {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
}

.concentration-99 {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.compare-header .concentration {
    font-size: 3rem;
    font-weight: 700;
    display: block;
}

.compare-header h3 {
    color: var(--white);
    font-weight: 500;
    font-size: 1rem;
}

.compare-body {
    padding: 1.5rem;
}

.compare-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.compare-list li {
    padding: 0.5rem 0;
    padding-left: 1.75rem;
    position: relative;
    font-size: 0.9375rem;
}

.compare-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.75rem;
    width: 16px;
    height: 16px;
    background-size: contain;
    background-repeat: no-repeat;
}

.compare-list li.pro::before {
    content: '✓';
    color: var(--secondary);
    font-weight: bold;
    font-size: 1rem;
    top: 0.5rem;
}

.compare-list li.con::before {
    content: '✗';
    color: var(--danger);
    font-weight: bold;
    font-size: 1rem;
    top: 0.5rem;
}

.best-for {
    padding: 1rem;
    background: var(--gray-50);
    border-radius: var(--radius);
    font-size: 0.875rem;
}

.best-for strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--gray-700);
}

.best-for span {
    color: var(--gray-500);
}

/* Comparison Table */
.comparison-table-wrapper {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.comparison-table-wrapper h3 {
    padding: 1.5rem;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    font-size: 1.125rem;
}

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

.comparison-table th,
.comparison-table td {
    padding: 1rem 1.5rem;
    text-align: center;
    border-bottom: 1px solid var(--gray-100);
}

.comparison-table th {
    font-weight: 600;
    color: var(--gray-700);
    background: var(--gray-50);
}

.comparison-table td:first-child {
    text-align: left;
    font-weight: 500;
    color: var(--gray-700);
}

.rating {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius);
}

.rating.high {
    background: #dcfce7;
    color: #166534;
}

.rating.medium {
    background: #fef3c7;
    color: #92400e;
}

.rating.low {
    background: #fee2e2;
    color: #991b1b;
}

/* Guide Section */
.guide-section {
    background: var(--gray-50);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
}

.guide-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    transition: var(--transition-slow);
}

.guide-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

.guide-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.guide-card p {
    color: var(--gray-600);
    font-size: 0.9375rem;
}

/* SEO Section */
.seo-section {
    background: var(--white);
    border-top: 1px solid var(--gray-200);
}

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

.seo-content h2 {
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
}

.seo-content h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    color: var(--gray-800);
}

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

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 4rem 0 2rem;
}

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

.footer-brand .logo {
    margin-bottom: 1rem;
}

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

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-links h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9375rem;
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--gray-800);
    text-align: center;
}

.affiliate-disclosure {
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-bottom: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
}

.copyright {
    font-size: 0.875rem;
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--white);
        padding: 1rem;
        gap: 0;
        border-bottom: 1px solid var(--gray-200);
    }

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

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--gray-100);
    }

    .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-stats {
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .info-items {
        flex-direction: column;
        gap: 1rem;
    }

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

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

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

    .comparison-table {
        min-width: 500px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    section {
        padding: 3rem 0;
    }

    .hero {
        padding: 6rem 0 3rem;
    }

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

    .btn {
        width: 100%;
    }

    .filter-tabs {
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 0.5rem;
    }

    .filter-tab {
        white-space: nowrap;
    }

    .quiz-content {
        padding: 1.5rem;
    }

    .quiz-option {
        padding: 1rem;
    }

    .quiz-option-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
}

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

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

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-2 {
    margin-bottom: 2rem;
}

.mt-2 {
    margin-top: 2rem;
}