/* ===================================
   TOPUPRU Clone - Main Stylesheet
   Professional BIGO Live Recharge Design
   =================================== */

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

:root {
    --primary-color: #8b5cf6;
    --primary-dark: #7c3aed;
    --secondary-color: #3b82f6;
    --accent-color: #ec4899;
    --dark-color: #1e1b4b;
    --darker-color: #0f0a2e;
    --light-color: #f8fafc;
    --text-color: #334155;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    --gradient-dark: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #1e3a8a 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
}

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

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

ul {
    list-style: none;
}

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

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===================================
   Header
   =================================== */
.header {
    background: var(--gradient-dark);
    color: white;
    padding: 12px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    transition: opacity 0.3s;
}

.logo:hover {
    opacity: 0.9;
}

.logo-img {
    height: 44px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-menu a {
    color: rgba(255,255,255,0.85);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s;
    padding: 8px 4px;
    border-bottom: 2px solid transparent;
}

.nav-menu a i {
    margin-right: 6px;
    opacity: 0.7;
}

.nav-menu a:hover {
    color: white;
    opacity: 1;
}

.nav-menu a:hover i {
    opacity: 1;
}

.header-controls {
    display: flex;
    gap: 20px;
    align-items: center;
}

.currency-selector {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.currency-selector:hover {
    background: rgba(255,255,255,0.2);
}

.social-links {
    display: flex;
    gap: 8px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    font-size: 1.1rem;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    background: var(--gradient-dark);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 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='%23ffffff' fill-opacity='0.03'%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");
    pointer-events: none;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(139, 92, 246, 0.3);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-bottom: 20px;
    border: 1px solid rgba(139, 92, 246, 0.4);
}

.hero-badge-icon {
    width: 20px;
    height: 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 0%, #c4b5fd 50%, #f0abfc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.1rem;
    max-width: 560px;
    margin-bottom: 32px;
    opacity: 0.9;
    line-height: 1.8;
}

.advantages {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.advantage-item {
    display: flex;
    align-items: center;
    gap: 14px;
    background: rgba(255,255,255,0.08);
    padding: 16px 20px;
    border-radius: 14px;
    transition: all 0.3s;
    border: 1px solid rgba(255,255,255,0.1);
}

.advantage-item:hover {
    transform: translateY(-3px);
    background: rgba(255,255,255,0.12);
}

.advantage-icon-img {
    width: 40px;
    height: 40px;
}

.advantage-icon-circle {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.advantage-text-group {
    display: flex;
    flex-direction: column;
}

.advantage-label {
    font-weight: 600;
    font-size: 0.95rem;
}

.advantage-sub {
    font-size: 0.8rem;
    opacity: 0.7;
}

/* Platform Tabs */
.platform-tabs {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.tab-btn {
    background: rgba(255,255,255,0.1);
    border: 2px solid rgba(255,255,255,0.2);
    color: white;
    padding: 14px 28px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tab-btn:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.3);
}

.tab-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
}

.tab-btn i {
    font-size: 1rem;
}

/* Hero Visual */
.hero-visual {
    flex: 0 0 640px;
    position: relative;
}

.hero-app-image {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
}

.hero-overlay-card {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: white;
    padding: 16px 24px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 12px;
}

.hero-diamond-img {
    width: 48px;
    height: 48px;
}

.hero-card-text {
    color: var(--dark-color);
    font-weight: 700;
    font-size: 1.1rem;
}

/* ===================================
   Product Grid
   =================================== */
.products-section {
    padding: 80px 0;
    background: var(--light-color);
}

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

.section-title {
    font-size: 2.2rem;
    color: var(--dark-color);
    margin-bottom: 12px;
    font-weight: 700;
}

.section-title i {
    margin-right: 12px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.product-card {
    background: var(--gradient-card);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 1px solid var(--border-color);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.15);
    border-color: var(--primary-color);
}

.product-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.product-img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
}

.product-content {
    padding: 24px;
}

.product-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 12px;
}

.product-prices {
    margin-bottom: 16px;
}

.original-price {
    font-size: 0.9rem;
    color: #94a3b8;
    text-decoration: line-through;
    margin-right: 12px;
}

.sale-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

.product-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--gradient-primary);
    color: white;
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.buy-btn {
    width: 100%;
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 14px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.buy-btn:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.35);
}

.buy-btn i {
    font-size: 0.9rem;
}

.btn-large {
    padding: 18px 48px;
    display: inline-flex;
    width: auto;
}

/* ===================================
   How to Section
   =================================== */
.how-to-section {
    padding: 80px 0;
    background: white;
}

.how-to-content {
    max-width: 800px;
    margin: 0 auto;
}

.how-to-steps {
    margin: 40px 0;
}

.step-item {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
    align-items: flex-start;
}

.step-number {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 800;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.3);
}

.step-text {
    flex: 1;
    padding-top: 8px;
}

.step-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 6px;
}

.find-id-section {
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    padding: 40px;
    border-radius: 24px;
    margin-top: 40px;
    border: 1px solid #ddd6fe;
}

.find-id-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 28px;
    text-align: center;
}

.find-id-title i {
    margin-right: 10px;
    color: var(--primary-color);
}

.find-id-steps {
    max-width: 500px;
    margin: 0 auto;
}

.find-id-step {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
    padding: 14px 18px;
    background: white;
    border-radius: 12px;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.find-id-step::before {
    content: attr(data-step);
    width: 32px;
    height: 32px;
    background: var(--secondary-color);
    color: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.warning-box {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: #fef3c7;
    padding: 20px;
    border-radius: 12px;
    margin-top: 24px;
    border-left: 4px solid #f59e0b;
}

.warning-box i {
    color: #f59e0b;
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.warning-box div {
    color: #92400e;
    font-size: 0.95rem;
}

.warning-box strong {
    display: block;
    margin-bottom: 4px;
}

/* ===================================
   Notes Section
   =================================== */
.notes-section {
    padding: 60px 0;
    background: var(--gradient-dark);
    color: white;
}

.notes-content {
    max-width: 800px;
    margin: 0 auto;
}

.notes-title {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.notes-title i {
    margin-right: 10px;
}

.notes-list {
    list-style: none;
}

.notes-list li {
    margin-bottom: 16px;
    padding: 16px 20px;
    background: rgba(255,255,255,0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 14px;
    border: 1px solid rgba(255,255,255,0.1);
}

.notes-list li i {
    color: var(--success-color);
    font-size: 1.1rem;
}

.promo-box {
    background: rgba(139, 92, 246, 0.2);
    padding: 28px;
    border-radius: 16px;
    margin-top: 28px;
    border: 1px solid rgba(139, 92, 246, 0.3);
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.promo-icon {
    font-size: 2rem;
    color: var(--accent-color);
    flex-shrink: 0;
}

.promo-content {
    font-size: 1.05rem;
    line-height: 1.7;
}

.promo-content strong {
    display: block;
    margin-bottom: 8px;
    font-size: 1.15rem;
    color: #f0abfc;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--darker-color);
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 1.05rem;
    margin-bottom: 20px;
    color: #c4b5fd;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-section h3 i {
    color: var(--primary-color);
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: rgba(255,255,255,0.65);
    transition: all 0.3s;
    font-size: 0.9rem;
}

.footer-section ul li a:hover {
    color: white;
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 14px;
}

.footer-logo-img {
    height: 40px;
    width: auto;
}

.footer-logo span {
    font-size: 1.2rem;
    font-weight: 700;
    color: #c4b5fd;
}

.footer-copyright {
    color: rgba(255,255,255,0.45);
    font-size: 0.85rem;
}

.chat-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chat-btn:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.35);
}

.social-icons {
    display: flex;
    gap: 10px;
    margin-top: 16px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    font-size: 1.1rem;
}

.social-icons a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

/* ===================================
   Page Header (List/Detail Pages)
   =================================== */
.page-header {
    background: var(--gradient-dark);
    color: white;
    padding: 50px 0;
    text-align: center;
}

.breadcrumb {
    margin-bottom: 16px;
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
}

.breadcrumb a {
    color: rgba(255,255,255,0.8);
    transition: color 0.3s;
}

.breadcrumb a:hover {
    color: white;
}

.page-title {
    font-size: 2.2rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.page-subtitle {
    opacity: 0.85;
    font-size: 1.05rem;
}

/* ===================================
   Filter Section
   =================================== */
.filter-section {
    padding: 30px 0;
    background: white;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 68px;
    z-index: 100;
}

.filter-bar {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.filter-label {
    font-weight: 600;
    color: var(--dark-color);
    font-size: 0.9rem;
}

.filter-select {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 0.95rem;
    cursor: pointer;
    min-width: 160px;
    transition: all 0.3s;
    color: var(--text-color);
}

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

.search-box {
    display: flex;
    gap: 10px;
    margin-left: auto;
}

.search-input {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 0.95rem;
    width: 260px;
    transition: all 0.3s;
}

.search-input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.search-btn {
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.search-btn:hover {
    background: #2563eb;
}

/* ===================================
   Pagination
   =================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 48px 0;
}

.pagination button {
    width: 44px;
    height: 44px;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.pagination button:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination button.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* ===================================
   Product Detail Page
   =================================== */
.product-detail {
    padding: 60px 0;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.detail-image {
    background: white;
    border-radius: 24px;
    padding: 48px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

.detail-image img {
    width: 100%;
    border-radius: 16px;
}

.detail-info {
    background: white;
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

.detail-title {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 16px;
    font-weight: 700;
}

.detail-description {
    color: var(--text-light);
    margin-bottom: 28px;
    line-height: 1.8;
}

.detail-price-box {
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    padding: 28px;
    border-radius: 16px;
    margin-bottom: 28px;
    border: 1px solid #ddd6fe;
}

.detail-price-label {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 8px;
}

.detail-price-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

.detail-price-box p:last-child {
    margin-top: 8px;
}

.detail-quantity {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
}

.quantity-label {
    font-weight: 600;
    color: var(--dark-color);
}

.quantity-controls {
    display: flex;
    align-items: center;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

.quantity-btn {
    width: 48px;
    height: 48px;
    border: none;
    background: white;
    font-size: 1.3rem;
    cursor: pointer;
    transition: all 0.3s;
}

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

.quantity-input {
    width: 70px;
    height: 48px;
    border: none;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    border-left: 2px solid var(--border-color);
    border-right: 2px solid var(--border-color);
}

.detail-features {
    margin-bottom: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    color: var(--text-color);
    font-weight: 500;
}

.feature-item i {
    color: var(--success-color);
    font-size: 1.1rem;
}

.add-to-cart-btn {
    width: 100%;
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 18px;
    border-radius: 14px;
    font-size: 1.15rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.add-to-cart-btn:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.4);
}

.order-form-section {
    margin-top: 60px;
    background: white;
    border-radius: 24px;
    padding: 48px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

.order-form-title {
    font-size: 1.5rem;
    margin-bottom: 32px;
    text-align: center;
    color: var(--dark-color);
    font-weight: 700;
}

.order-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.form-label .required {
    color: var(--danger-color);
}

.form-input {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.1);
}

.form-hint {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-hint i {
    color: var(--secondary-color);
}

.form-select {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
}

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

.order-summary {
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    padding: 24px;
    border-radius: 16px;
    margin-bottom: 24px;
    border: 1px solid #ddd6fe;
}

.order-summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    color: var(--text-color);
}

.order-summary-row:last-child {
    margin-bottom: 0;
    padding-top: 12px;
    border-top: 2px solid #ddd6fe;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* ===================================
   FAQ Section
   =================================== */
.faq-section {
    padding: 80px 0;
    background: var(--light-color);
}

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

.faq-item {
    background: white;
    border-radius: 16px;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    border: 1px solid var(--border-color);
}

.faq-item summary {
    padding: 20px 24px;
    font-weight: 600;
    cursor: pointer;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s;
}

.faq-item summary:hover {
    background: #f8fafc;
}

.faq-item summary::marker {
    color: var(--primary-color);
}

.faq-item p {
    padding: 0 24px 20px 24px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .hero .container {
        flex-direction: column;
    }
    
    .hero-visual {
        flex: none;
        width: 100%;
        max-width: 640px;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .advantages {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }
    
    .advantage-item {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 16px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        text-align: center;
    }
    
    .footer-section h3 {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .detail-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        margin-left: 0;
    }
    
    .search-input {
        width: 100%;
    }
    
    .platform-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .order-form-section {
        padding: 24px;
    }
}

/* ===================================
   Legal Pages Styles (About, Privacy, Terms)
   =================================== */
.legal-section {
    padding: 60px 0;
    background: var(--light-color);
}

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

.legal-intro {
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    padding: 32px;
    border-radius: 16px;
    margin-bottom: 40px;
    border: 1px solid #ddd6fe;
}

.legal-intro p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-color);
}

.toc-block {
    background: white;
    padding: 28px;
    border-radius: 16px;
    margin-bottom: 40px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.toc-block h3 {
    font-size: 1.3rem;
    color: var(--dark-color);
    margin-bottom: 20px;
}

.toc-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    counter-reset: item;
}

.toc-list li {
    counter-increment: item;
}

.toc-list li a {
    color: var(--secondary-color);
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toc-list li a:hover {
    color: var(--primary-color);
}

.toc-list li::before {
    content: counter(item);
    background: var(--primary-color);
    color: white;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    flex-shrink: 0;
}

.legal-block {
    background: white;
    padding: 32px;
    border-radius: 16px;
    margin-bottom: 24px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.legal-block h3 {
    font-size: 1.3rem;
    color: var(--dark-color);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.legal-block h3 i {
    color: var(--primary-color);
}

.legal-block h4 {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin: 24px 0 12px 0;
}

.legal-block p {
    color: var(--text-color);
    line-height: 1.8;
    margin-bottom: 16px;
}

.legal-block ul {
    list-style: none;
    margin-bottom: 16px;
}

.legal-block ul li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    color: var(--text-color);
    border-bottom: 1px solid #f1f5f9;
}

.legal-block ul li:last-child {
    border-bottom: none;
}

.legal-block ul li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
}

.contact-box {
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    padding: 24px;
    border-radius: 12px;
    margin-top: 20px;
    border: 1px solid #ddd6fe;
}

.contact-box p {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.contact-box i {
    color: var(--primary-color);
    width: 20px;
}

/* About Page Specific */
.about-intro {
    text-align: center;
    padding: 48px 32px;
    background: var(--gradient-dark);
    color: white;
    border-radius: 24px;
    margin-bottom: 40px;
}

.about-logo {
    margin-bottom: 24px;
}

.about-logo img {
    height: 80px;
    filter: brightness(0) invert(1);
}

.about-intro h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}

.about-lead {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

.about-block {
    background: white;
    padding: 32px;
    border-radius: 16px;
    margin-bottom: 24px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.about-block h3 {
    font-size: 1.3rem;
    color: var(--dark-color);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.about-block h3 i {
    color: var(--primary-color);
}

.about-block p {
    color: var(--text-color);
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 24px;
}

.feature-card {
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    padding: 24px;
    border-radius: 16px;
    text-align: center;
    border: 1px solid #ddd6fe;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
    color: white;
}

.feature-card h4 {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 24px;
}

.stat-item {
    text-align: center;
    padding: 24px;
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    border-radius: 16px;
    border: 1px solid #ddd6fe;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
}

.process-steps {
    margin-top: 24px;
}

.process-step {
    display: flex;
    gap: 20px;
    margin-bottom: 24px;
    padding: 20px;
    background: #f8fafc;
    border-radius: 12px;
}

.process-number {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    flex-shrink: 0;
}

.process-content h4 {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin-bottom: 6px;
}

.process-content p {
    font-size: 0.95rem;
    color: var(--text-light);
}

.platform-list {
    list-style: none;
    margin-top: 16px;
}

.platform-list li {
    padding: 14px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
}

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

.platform-list i {
    color: var(--success-color);
    font-size: 1.1rem;
}

.contact-block {
    background: var(--gradient-dark);
    color: white;
}

.contact-block h3 {
    color: white;
}

.contact-block h3 i {
    color: #c4b5fd;
}

.contact-block > p {
    color: rgba(255,255,255,0.85);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
}

.contact-item i {
    font-size: 1.2rem;
    color: #c4b5fd;
}

/* Terms Agreement Block */
.agreement-block {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    padding: 24px;
    border-radius: 16px;
    margin-top: 32px;
    border: 2px solid #fbbf24;
}

.agreement-block p {
    color: #92400e;
    font-size: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    line-height: 1.6;
}

.agreement-block i {
    color: #f59e0b;
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Legal Pages Responsive */
@media (max-width: 768px) {
    .toc-list {
        grid-template-columns: 1fr;
    }
    
    .features-grid,
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .legal-block,
    .about-block {
        padding: 24px;
    }
    
    .about-intro {
        padding: 32px 20px;
    }
}

@media (max-width: 480px) {
    .features-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
}