/* ===== CSS Variables ===== */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #059669;
    --secondary-dark: #047857;
    --accent-color: #f59e0b;
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-light: #6b7280;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

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

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

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

ul {
    list-style: none;
}

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

/* ===== Layout ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    text-align: center;
}

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

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

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

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

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

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

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

.btn-success:hover {
    background-color: var(--secondary-dark);
    color: white;
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

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

.nav a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

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

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

.nav a: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-color: var(--text-primary);
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    padding: 4rem 0;
}

.hero .container {
    display: grid;
    gap: 3rem;
}

.hero-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hero-content p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

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

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

/* ===== Products Section ===== */
.products-section {
    padding: 5rem 0;
}

.view-toggle {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1rem;
}

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

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

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.product-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

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

.product-image {
    position: relative;
    height: 200px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-emoji {
    font-size: 5rem;
    line-height: 1;
}

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

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

.badge-natural {
    background-color: var(--secondary-color);
    color: white;
}

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

.product-content {
    padding: 1.5rem;
}

.product-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.product-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
}

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

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

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

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

.product-price {
    font-weight: 600;
    color: var(--text-primary);
}

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

.product-tag {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
}

.product-actions {
    display: flex;
    gap: 0.5rem;
}

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

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

.products-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

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

.products-table th {
    background-color: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.products-table td {
    color: var(--text-secondary);
}

.products-table tbody tr:hover {
    background-color: var(--bg-secondary);
}

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

.table-product-emoji {
    font-size: 2rem;
    line-height: 1;
}

/* ===== Quiz Section ===== */
.quiz-section {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
}

.quiz-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

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

.progress-bar {
    height: 8px;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
    width: 25%;
}

.progress-text {
    display: block;
    text-align: center;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

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

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

.quiz-question h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

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

.quiz-option {
    display: flex;
    align-items: center;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}

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

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

.quiz-option input {
    display: none;
}

.quiz-option-radio {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    margin-right: 1rem;
    position: relative;
    transition: var(--transition);
}

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

.quiz-option.selected .quiz-option-radio::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

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

.quiz-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.quiz-result {
    text-align: center;
    padding: 2rem 0;
}

.quiz-result h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.quiz-result-product {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin: 1.5rem 0;
}

.quiz-result-product h4 {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.quiz-result-product p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* ===== Compare Section ===== */
.compare-section {
    padding: 5rem 0;
}

.compare-selector {
    margin-bottom: 2rem;
}

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

.compare-slot {
    position: relative;
}

.compare-select {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    cursor: pointer;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 20px;
}

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

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

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

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

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

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

.compare-table .compare-header {
    background-color: var(--primary-color);
    color: white;
}

.compare-check {
    color: var(--secondary-color);
}

.compare-cross {
    color: var(--text-light);
}

/* ===== FAQ Section ===== */
.faq-section {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--bg-secondary);
}

.faq-icon {
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

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

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 1.5rem 1.25rem;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== SEO Section ===== */
.seo-section {
    padding: 5rem 0;
    background-color: var(--bg-primary);
}

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

.seo-content h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.seo-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

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

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

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

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-brand span {
    color: var(--primary-light);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-links h4,
.footer-legal h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

.footer-links a,
.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-links a:hover,
.footer-legal a:hover {
    color: white;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.affiliate-disclosure {
    font-size: 0.75rem !important;
    color: rgba(255, 255, 255, 0.5) !important;
}

/* ===== Utility Classes ===== */
.hidden {
    display: none !important;
}

/* ===== Responsive Design ===== */
@media (max-width: 968px) {
    .hero-content h2 {
        font-size: 2rem;
    }

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

    .footer-brand {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
    }

    .nav.active {
        display: block;
    }

    .nav ul {
        flex-direction: column;
        padding: 1rem;
        gap: 0;
    }

    .nav li {
        border-bottom: 1px solid var(--border-color);
    }

    .nav li:last-child {
        border-bottom: none;
    }

    .nav a {
        display: block;
        padding: 1rem;
    }

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

    .hero {
        padding: 3rem 0;
    }

    .hero-content h2 {
        font-size: 1.75rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

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

    .quiz-container {
        padding: 1.5rem;
    }

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

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

    .footer-brand {
        grid-column: span 1;
    }

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

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

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

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

    .quiz-navigation {
        flex-direction: column;
        gap: 1rem;
    }

    .quiz-navigation .btn {
        width: 100%;
    }

    .product-actions {
        flex-direction: column;
    }
}