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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #0a0a0a;
}

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

.header {
    background: linear-gradient(135deg, #1a1a1a, #2d2d2d);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

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

.logo h1 a {
    color: #ff4757;
    text-decoration: none;
    font-size: 2rem;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav a:hover {
    color: #ff4757;
}

.nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #ff4757;
    transition: width 0.3s ease;
}

.nav a:hover::after {
    width: 100%;
}

.search {
    display: flex;
    gap: 10px;
}

.search-input {
    padding: 10px 15px;
    border: none;
    border-radius: 25px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    width: 250px;
    outline: none;
    transition: background 0.3s ease;
}

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

.search-input:focus {
    background: rgba(255,255,255,0.2);
}

.search-btn {
    padding: 10px 20px;
    background: #ff4757;
    color: #fff;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s ease;
}

.search-btn:hover {
    background: #e84118;
}

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

.mobile-menu span {
    width: 25px;
    height: 3px;
    background: #fff;
    transition: all 0.3s ease;
}

.hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('/images/1.jpg');
    background-size: cover;
    background-position: center;
    padding: 100px 0;
    text-align: center;
    color: #fff;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.7);
}

.cta-btn {
    display: inline-block;
    padding: 15px 30px;
    background: #ff4757;
    color: #fff;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255,71,87,0.3);
}

.cta-btn:hover {
    background: #e84118;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,71,87,0.4);
}

.section-title {
    font-size: 2.5rem;
    color: #fff;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: #ff4757;
    border-radius: 2px;
}

.featured, .categories, .latest, .related {
    padding: 80px 0;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.video-card {
    background: #1a1a1a;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    position: relative;
}

.video-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.5);
}

.video-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.video-card:hover img {
    transform: scale(1.05);
}

.video-card-content {
    padding: 1.5rem;
}

.video-card h3 {
    color: #fff;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.video-card h3 a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.video-card h3 a:hover {
    color: #ff4757;
}

.video-card p {
    color: #ccc;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.video-duration {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0,0,0,0.8);
    color: #fff;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 25px;
    background: transparent;
    color: #ccc;
    border: 2px solid #333;
    border-radius: 25px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.tab-btn.active,
.tab-btn:hover {
    background: #ff4757;
    color: #fff;
    border-color: #ff4757;
}

.video-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.video-item {
    display: flex;
    background: #1a1a1a;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.video-item:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.video-item img {
    width: 150px;
    height: 120px;
    object-fit: cover;
    flex-shrink: 0;
}

.video-info {
    padding: 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.video-info h3 {
    color: #fff;
    margin-bottom: 0.5rem;
}

.video-info h3 a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.video-info h3 a:hover {
    color: #ff4757;
}

.video-info p {
    color: #ccc;
    font-size: 0.9rem;
}

.duration {
    background: #ff4757;
    color: #fff;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: bold;
    align-self: flex-start;
    margin-top: 0.5rem;
}

.related-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.related-keywords a {
    background: #1a1a1a;
    color: #fff;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid #333;
}

.related-keywords a:hover {
    background: #ff4757;
    border-color: #ff4757;
    transform: translateY(-2px);
}

.footer {
    background: #111;
    padding: 50px 0 20px;
    color: #ccc;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    color: #fff;
    margin-bottom: 1rem;
}

.footer-section h3 {
    color: #ff4757;
    font-size: 1.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #ff4757;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #999;
}

.footer-bottom a {
    color: #ff4757;
    text-decoration: none;
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        display: none;
        width: 100%;
    }
    
    .nav.active {
        display: block;
    }
    
    .nav ul {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .mobile-menu {
        display: flex;
        position: absolute;
        right: 20px;
        top: 50%;
        transform: translateY(-50%);
    }
    
    .search {
        width: 100%;
        justify-content: center;
    }
    
    .search-input {
        width: 200px;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .video-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1rem;
    }
    
    .category-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .video-list {
        grid-template-columns: 1fr;
    }
    
    .video-item {
        flex-direction: column;
    }
    
    .video-item img {
        width: 100%;
        height: 150px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero-content h2 {
        font-size: 1.5rem;
    }
    
    .featured, .categories, .latest, .related {
        padding: 40px 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .video-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .related-keywords {
        flex-direction: column;
        align-items: center;
    }
}