/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #f59e0b;
    --secondary-dark: #d97706;
    --accent: #8b5cf6;

    /* Neutrals */
    --white: #ffffff;
    --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;

    /* Semantic */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Dark theme colors */
    --dark-bg: #0f172a;
    --dark-card: #1e293b;
    --dark-border: #334155;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --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);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

/* ===== Reset & Base ===== */
*, *::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(--gray-100);
    background: var(--dark-bg);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

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

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--gray-600);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.btn-small {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

/* ===== Section Styling ===== */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-light);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.section-header h2 {
    margin-bottom: var(--spacing-md);
}

.section-header p {
    color: var(--gray-400);
    font-size: 1.125rem;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    border-bottom-color: var(--dark-border);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

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

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

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-links a {
    font-weight: 500;
    color: var(--gray-300);
    transition: color var(--transition-fast);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
}

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

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

.hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 50%, rgba(139, 92, 246, 0.1) 0%, transparent 40%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-light);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.hero h1 {
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-400);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
}

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

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

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

.hero-visual {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.moon-container {
    position: relative;
}

.moon {
    font-size: 12rem;
    filter: drop-shadow(0 0 60px rgba(251, 191, 36, 0.3));
    animation: float 6s ease-in-out infinite;
}

.stars {
    position: absolute;
    font-size: 3rem;
    top: -20px;
    right: -30px;
    animation: twinkle 2s ease-in-out infinite;
}

.floating-gummy {
    position: absolute;
    font-size: 3rem;
    animation: float 4s ease-in-out infinite;
}

.gummy-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.gummy-2 {
    top: 60%;
    right: 15%;
    animation-delay: 1s;
}

.gummy-3 {
    bottom: 20%;
    left: 20%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes twinkle {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.9); }
}

/* ===== Trust Badges ===== */
.trust-badges {
    background: var(--dark-card);
    border-top: 1px solid var(--dark-border);
    border-bottom: 1px solid var(--dark-border);
    padding: var(--spacing-xl) 0;
}

.badges-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-2xl);
}

.badge-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.badge-text {
    font-weight: 600;
    color: var(--gray-300);
}

/* ===== Quiz Section ===== */
.quiz-section {
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-card) 100%);
}

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

.quiz-progress {
    margin-bottom: var(--spacing-xl);
}

.progress-bar {
    height: 8px;
    background: var(--dark-border);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
    width: 20%;
}

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

.quiz-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
}

.quiz-question {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.quiz-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(99, 102, 241, 0.05);
    border: 2px solid var(--dark-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.quiz-option:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.quiz-option.selected {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.15);
}

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

.quiz-option-text {
    font-weight: 500;
    color: var(--gray-200);
}

.quiz-nav {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-xl);
}

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

.quiz-result .result-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
}

.quiz-result h3 {
    margin-bottom: var(--spacing-xl);
}

.result-product {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

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

.products-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--dark-card);
    color: var(--gray-400);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-full);
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

.view-toggle {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.view-btn {
    padding: var(--spacing-sm);
    background: var(--dark-card);
    color: var(--gray-400);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

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

.product-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.product-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--secondary);
    color: var(--gray-900);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.product-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.product-compare-btn {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 36px;
    height: 36px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: all var(--transition-fast);
    font-size: 1.25rem;
}

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

.product-content {
    padding: var(--spacing-lg);
}

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

.product-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.product-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--gray-400);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.product-rating .stars {
    color: var(--secondary);
    position: static;
    font-size: 1rem;
    animation: none;
}

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

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.feature-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-light);
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

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

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

.products-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--dark-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.products-table th,
.products-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid var(--dark-border);
}

.products-table th {
    background: rgba(99, 102, 241, 0.1);
    color: var(--gray-300);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.products-table td {
    color: var(--gray-200);
}

.products-table tr:hover {
    background: rgba(99, 102, 241, 0.05);
}

.products-table .product-name-cell {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

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

/* ===== Compare Section ===== */
.compare-section {
    background: linear-gradient(180deg, var(--dark-card) 0%, var(--dark-bg) 100%);
}

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

.compare-slot {
    background: var(--dark-card);
    border: 2px dashed var(--dark-border);
    border-radius: var(--radius-xl);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.compare-slot:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

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

.slot-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-500);
}

.plus-icon {
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-light);
}

.slot-product {
    padding: var(--spacing-lg);
    width: 100%;
    text-align: center;
}

.slot-product .product-emoji {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.slot-product .product-name {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.slot-product .remove-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

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

.compare-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--dark-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.compare-table th,
.compare-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: center;
    border-bottom: 1px solid var(--dark-border);
}

.compare-table th {
    background: rgba(99, 102, 241, 0.1);
    color: var(--white);
    font-weight: 600;
}

.compare-table td:first-child {
    text-align: left;
    font-weight: 500;
    color: var(--gray-400);
    background: rgba(99, 102, 241, 0.05);
}

.compare-table td {
    color: var(--gray-200);
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 32px;
    height: 32px;
    background: var(--dark-border);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--error);
    color: var(--white);
}

.modal-content h3 {
    margin-bottom: var(--spacing-xl);
}

.modal-products {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.modal-product-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-product-item:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.modal-product-item .emoji {
    font-size: 2rem;
}

.modal-product-item .name {
    font-weight: 500;
    color: var(--gray-200);
    font-size: 0.875rem;
}

/* ===== Benefits Section ===== */
.benefits-section {
    background: var(--dark-bg);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.benefit-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
}

.benefit-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.benefit-card h3 {
    margin-bottom: var(--spacing-sm);
}

.benefit-card p {
    color: var(--gray-400);
}

/* ===== How To Section ===== */
.howto-section {
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-card) 100%);
}

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

.step {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 24px;
    top: 56px;
    width: 2px;
    height: calc(100% - 16px);
    background: var(--dark-border);
}

.step-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    flex-shrink: 0;
}

.step-content h3 {
    margin-bottom: var(--spacing-sm);
}

.step-content p {
    color: var(--gray-400);
}

/* ===== FAQ Section ===== */
.faq-section {
    background: var(--dark-card);
}

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

.faq-item {
    border-bottom: 1px solid var(--dark-border);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) 0;
    color: var(--white);
    font-size: 1.125rem;
    font-weight: 500;
    text-align: left;
    transition: color var(--transition-fast);
}

.faq-question:hover {
    color: var(--primary-light);
}

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

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding-bottom: var(--spacing-lg);
    color: var(--gray-400);
    line-height: 1.7;
}

/* ===== SEO Section ===== */
.seo-section {
    background: var(--dark-bg);
    border-top: 1px solid var(--dark-border);
}

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

.seo-content h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.seo-content h3 {
    font-size: 1.25rem;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--primary-light);
}

.seo-content p {
    color: var(--gray-400);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.seo-content strong {
    color: var(--gray-200);
}

/* ===== Newsletter Section ===== */
.newsletter-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    padding: var(--spacing-3xl) 0;
}

.newsletter-content {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-content h2 {
    margin-bottom: var(--spacing-sm);
}

.newsletter-content p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-lg);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
}

.newsletter-form input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    color: var(--white);
    font-size: 1rem;
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--white);
    background: rgba(255, 255, 255, 0.2);
}

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

.newsletter-form .btn:hover {
    background: var(--gray-100);
}

.newsletter-note {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: var(--spacing-md);
}

/* ===== Footer ===== */
.footer {
    background: var(--dark-card);
    border-top: 1px solid var(--dark-border);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand p {
    color: var(--gray-500);
    margin-top: var(--spacing-md);
}

.footer-links h4 {
    color: var(--gray-300);
    margin-bottom: var(--spacing-md);
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--gray-500);
    transition: color var(--transition-fast);
}

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

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

.footer-bottom p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.affiliate-disclosure {
    margin-top: var(--spacing-sm);
    font-size: 0.75rem !important;
    color: var(--gray-600) !important;
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 48px;
    height: 48px;
    background: var(--primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 100;
}

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

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

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

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

    .hero-content {
        order: 2;
    }

    .hero-visual {
        order: 1;
        height: 250px;
    }

    .moon {
        font-size: 8rem;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

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

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

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

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--dark-card);
        border-bottom: 1px solid var(--dark-border);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

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

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

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

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

    .newsletter-form {
        flex-direction: column;
    }

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

    .footer-brand {
        order: -1;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .badges-grid {
        flex-direction: column;
        align-items: center;
    }

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

    .filter-btn {
        text-align: center;
    }
}