/* ===== CSS Variables ===== */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #0ea5e9;
    --accent: #f59e0b;
    --success: #10b981;
    --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;

    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-dark: #111827;

    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;

    --border-color: #e5e7eb;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;

    --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);

    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul {
    list-style: none;
}

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

/* ===== Utilities ===== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgb(99 102 241 / 0.4);
}

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

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

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

.btn-amazon {
    background: linear-gradient(135deg, #ff9900 0%, #e88b00 100%);
    color: #111;
    font-weight: 700;
    box-shadow: 0 4px 14px 0 rgb(255 153 0 / 0.4);
}

.btn-amazon:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgb(255 153 0 / 0.5);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

/* ===== 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(--border-color);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 22px;
    font-weight: 700;
}

.logo-icon {
    font-size: 28px;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

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

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #f0f4ff 0%, #e0e7ff 50%, #dbeafe 100%);
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite;
}

.hero-bg::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 70%;
    height: 70%;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.12) 0%, transparent 70%);
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(5deg); }
    66% { transform: translate(-20px, 20px) rotate(-5deg); }
}

.hero-content {
    text-align: center;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.hero-title {
    font-size: clamp(40px, 7vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

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

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

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-muted);
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--gray-300);
    border-radius: 12px;
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 1; top: 8px; }
    50% { opacity: 0.3; top: 20px; }
}

/* ===== Filters Section ===== */
.filters-section {
    padding: 80px 0 40px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
}

.filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    background: var(--bg-primary);
    padding: 24px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.filter-select {
    padding: 12px 16px;
    font-size: 15px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

/* ===== Products Section ===== */
.products-section {
    padding: 60px 0 100px;
    background: var(--bg-secondary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
}

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

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

.product-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 700;
    border-radius: 6px;
    text-transform: uppercase;
    z-index: 10;
}

.badge-bestseller {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

.badge-new {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.badge-value {
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    color: white;
}

.product-image-wrapper {
    position: relative;
    padding: 24px;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--gray-100) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 220px;
}

.product-image {
    max-height: 180px;
    object-fit: contain;
    transition: var(--transition);
}

.product-card:hover .product-image {
    transform: scale(1.05);
}

.product-placeholder {
    width: 160px;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 72px;
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
    border-radius: var(--border-radius);
}

.product-content {
    padding: 24px;
}

.product-brand {
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.product-name {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.3;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.stars {
    color: #fbbf24;
    font-size: 14px;
    letter-spacing: 2px;
}

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

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.feature-tag {
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 500;
    background: var(--gray-100);
    color: var(--text-secondary);
    border-radius: 4px;
}

.product-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    padding: 16px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 16px;
}

.spec-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.spec-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
}

.spec-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.product-price {
    display: flex;
    flex-direction: column;
}

.price-current {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
}

.price-original {
    font-size: 14px;
    color: var(--text-muted);
    text-decoration: line-through;
}

.product-actions {
    display: flex;
    gap: 8px;
}

.btn-compare {
    padding: 10px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

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

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

.no-results {
    text-align: center;
    padding: 80px 24px;
}

.no-results-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.no-results h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.no-results p {
    color: var(--text-muted);
}

/* ===== Compare Section ===== */
.compare-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.compare-slots {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.compare-slot {
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

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

.compare-slot-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
}

.plus-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    background: var(--bg-primary);
    border-radius: 50%;
    border: 2px solid var(--border-color);
}

.compare-slot-filled {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-align: center;
    position: relative;
    width: 100%;
}

.remove-compare {
    position: absolute;
    top: -16px;
    right: -16px;
    width: 32px;
    height: 32px;
    background: var(--danger);
    color: white;
    border-radius: 50%;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.remove-compare:hover {
    transform: scale(1.1);
}

.compare-img {
    width: 100px;
    height: 100px;
    object-fit: contain;
}

.compare-name {
    font-size: 14px;
    font-weight: 600;
}

.compare-table-wrapper {
    overflow-x: auto;
    margin-top: 24px;
}

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

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

.compare-table th {
    background: var(--gray-100);
    font-size: 14px;
    font-weight: 600;
}

.compare-table th:first-child {
    width: 180px;
}

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

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

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

.compare-table .cross {
    color: var(--danger);
}

/* ===== Guide Section ===== */
.guide-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.guide-card {
    background: var(--bg-primary);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.guide-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.guide-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

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

/* ===== FAQ Section ===== */
.faq-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

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

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

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    font-size: 17px;
    font-weight: 600;
    text-align: left;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

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

.faq-icon {
    font-size: 24px;
    font-weight: 300;
    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-bottom: 24px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== SEO Section ===== */
.seo-section {
    padding: 80px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

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

.seo-content h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.seo-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 32px 0 12px;
    color: var(--text-primary);
}

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

/* ===== Newsletter Section ===== */
.newsletter-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.newsletter-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.newsletter-content h2 {
    font-size: 32px;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
}

.newsletter-content p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
}

.newsletter-form {
    display: flex;
    gap: 12px;
    max-width: 480px;
    margin: 0 auto;
}

.newsletter-input {
    flex: 1;
    padding: 16px 20px;
    font-size: 16px;
    border: none;
    border-radius: var(--border-radius);
    background: white;
}

.newsletter-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.newsletter-form .btn-primary {
    background: var(--gray-900);
    box-shadow: none;
}

.newsletter-form .btn-primary:hover {
    background: var(--gray-800);
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand p {
    color: var(--gray-400);
    margin-top: 16px;
    line-height: 1.7;
}

.footer-links h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--gray-400);
    font-size: 15px;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--gray-700);
    text-align: center;
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: 14px;
    margin-bottom: 8px;
}

.affiliate-disclosure {
    font-size: 12px !important;
    color: var(--gray-500) !important;
    max-width: 700px;
    margin: 0 auto;
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--text-muted);
    border-radius: 50%;
    background: var(--gray-100);
    z-index: 10;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--text-primary);
}

.modal-body {
    padding: 40px;
}

.modal-selector {
    padding: 32px;
}

.modal-selector h3 {
    font-size: 20px;
    margin-bottom: 24px;
    text-align: center;
}

.selector-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
    max-height: 400px;
    overflow-y: auto;
}

.selector-item {
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    text-align: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.selector-item img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin: 0 auto 12px;
}

.selector-item h4 {
    font-size: 13px;
    font-weight: 600;
    line-height: 1.3;
}

/* ===== Product Modal Content ===== */
.modal-product {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.modal-product-image {
    background: var(--gray-100);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-product-image img {
    max-height: 300px;
}

.modal-product-info h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.modal-product-info .product-brand {
    margin-bottom: 16px;
}

.modal-product-info .product-rating {
    margin-bottom: 20px;
}

.modal-product-info .price-current {
    font-size: 32px;
}

.modal-product-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 20px 0;
}

.modal-product-features {
    margin: 24px 0;
}

.modal-product-features h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}

.modal-product-features ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.modal-product-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

.modal-product-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

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

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

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border-color);
        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-stats {
        flex-direction: column;
        gap: 24px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
    }

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

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

    .section-title {
        font-size: 28px;
    }

    .modal-body {
        padding: 24px;
    }
}

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

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .filters {
        padding: 16px;
    }

    .product-content {
        padding: 20px;
    }

    .product-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .product-actions {
        width: 100%;
    }

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

/* ===== Animations ===== */
.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

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

.product-card {
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.15s; }
.product-card:nth-child(3) { animation-delay: 0.2s; }
.product-card:nth-child(4) { animation-delay: 0.25s; }
.product-card:nth-child(5) { animation-delay: 0.3s; }
.product-card:nth-child(6) { animation-delay: 0.35s; }
.product-card:nth-child(7) { animation-delay: 0.4s; }
.product-card:nth-child(8) { animation-delay: 0.45s; }
.product-card:nth-child(9) { animation-delay: 0.5s; }
.product-card:nth-child(10) { animation-delay: 0.55s; }
.product-card:nth-child(11) { animation-delay: 0.6s; }
.product-card:nth-child(12) { animation-delay: 0.65s; }