* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #ffd700;
    --secondary-color: #0a0e27;
    --accent-color: #00d4ff;
    --text-color: #ffffff;
    --text-muted: #9ca3af;
    --bg-dark: #0a0e27;
    --bg-card: #151b3a;
    --border-color: #2a3050;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
}

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

.nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.header-actions {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 14px;
}

.btn-primary {
    background: var(--primary-color);
    color: #0a0e27;
}

.btn-primary:hover {
    background: #e6c200;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 215, 0, 0.3);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: #0a0e27;
    transform: translateY(-2px);
}

.btn-large {
    padding: 14px 32px;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    border-radius: 2px;
}

.hero {
    padding: 150px 0 100px;
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0d1330 100%);
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 50px;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.hero-actions {
    display: flex;
    gap: 15px;
    margin-bottom: 50px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-color);
}

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

.hero-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid var(--border-color);
}

.hero-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 25px;
    font-weight: 600;
    font-size: 18px;
}

.hero-card-icon {
    font-size: 24px;
}

.price-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.price-item:last-child {
    border-bottom: none;
}

.coin-name {
    font-weight: 600;
    font-size: 16px;
}

.coin-price {
    font-weight: 700;
}

.coin-change {
    color: var(--text-muted);
    font-size: 14px;
}

.coin-change.up {
    color: #10b981;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50px;
    color: var(--accent-color);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 15px;
}

.section-desc {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
}

.products,
.news,
.about,
.contact {
    padding: 100px 0;
}

.products {
    background: #0d1330;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.product-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 30px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(255, 215, 0, 0.1);
}

.product-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.product-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.product-desc {
    color: var(--text-muted);
    margin-bottom: 20px;
}

.product-features {
    list-style: none;
}

.product-features li {
    padding: 8px 0;
    color: var(--text-muted);
    font-size: 14px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 25px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

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

.news-tag {
    padding: 4px 12px;
    background: rgba(255, 215, 0, 0.15);
    color: var(--primary-color);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.news-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-desc {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 20px;
}

.news-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
}

.about-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content h3 {
    font-size: 24px;
    margin-bottom: 10px;
    margin-top: 30px;
}

.about-content h3:first-child {
    margin-top: 0;
}

.about-content p {
    color: var(--text-muted);
    font-size: 16px;
}

.about-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.about-stat {
    text-align: center;
}

.about-stat-icon {
    font-size: 36px;
    margin-bottom: 10px;
}

.about-stat-number {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-color);
}

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

.contact {
    background: #0d1330;
}

.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 32px;
}

.contact-text h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.contact-text p {
    color: var(--text-muted);
}

.contact-cta {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.contact-cta h3 {
    font-size: 28px;
    margin-bottom: 15px;
}

.contact-cta p {
    color: var(--text-muted);
    margin-bottom: 30px;
}

.contact-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: 15px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h4 {
    font-size: 18px;
    margin-bottom: 20px;
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-muted);
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: var(--text-muted);
    text-decoration: none;
}

@media (max-width: 1024px) {
    .hero-inner,
    .about-inner,
    .contact-inner {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 30px;
    }
    
    .products-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-inner {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .hero-actions,
    .contact-actions {
        flex-direction: column;
    }
    
    .header-actions {
        display: none;
    }
}