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

:root {
    --primary-color: #ff6b35;
    --secondary-color: #f7931e;
    --dark-bg: #1a1a2e;
    --card-bg: #16213e;
    --text-light: #ffffff;
    --text-gray: #a0a0a0;
    --hover-color: #ff8c5a;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    color: var(--text-light);
    line-height: 1.6;
    min-height: 100vh;
}

/* Header Styles */
header {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    transition: transform 0.3s;
}

.logo:hover {
    transform: scale(1.05);
}

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

nav a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s;
    position: relative;
    padding: 0.5rem 0;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s;
}

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

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

.search-box {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    padding: 0.5rem 1rem;
    gap: 0.5rem;
}

.search-box input {
    background: transparent;
    border: none;
    color: var(--text-light);
    outline: none;
    width: 200px;
}

.search-box input::placeholder {
    color: var(--text-gray);
}

/* Hero Section */
#home {
    padding-top: 80px;
    min-height: 600px;
}

.hero-slider {
    max-width: 1200px;
    margin: 2rem auto;
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.slider-wrapper {
    display: flex;
    transition: transform 0.5s ease;
}

.slide {
    min-width: 100%;
    position: relative;
    height: 500px;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
    padding: 3rem 2rem 2rem;
}

.slide-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.slide-content p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    max-width: 600px;
}

.btn-play {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-color);
    color: var(--text-light);
    padding: 0.8rem 2rem;
    border-radius: 25px;
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-play:hover {
    background: var(--hover-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.4);
}

.slider-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 1rem;
}

.slider-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--text-light);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
}

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

/* Section Styles */
section {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 2rem;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-color);
}

.section-header i {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.section-header h2 {
    font-size: 2rem;
    color: var(--text-light);
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.category-card {
    background: linear-gradient(135deg, var(--card-bg), #1e3a5f);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    color: var(--text-light);
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.category-card i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.category-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

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

/* Video Grid */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
}

.video-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s;
    cursor: pointer;
    position: relative;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.video-thumbnail {
    position: relative;
    width: 100%;
    height: 350px;
    overflow: hidden;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.video-card:hover .video-thumbnail img {
    transform: scale(1.1);
}

.video-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--primary-color);
    color: var(--text-light);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
}

.video-rating {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.7);
    color: var(--secondary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 107, 53, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.video-card:hover .play-overlay {
    opacity: 1;
}

.play-overlay i {
    color: var(--text-light);
    font-size: 1.5rem;
    margin-left: 3px;
}

.video-info {
    padding: 1rem;
}

.video-info h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* Ranking List */
.ranking-list {
    display: grid;
    gap: 1rem;
}

.ranking-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 10px;
    transition: all 0.3s;
    cursor: pointer;
}

.ranking-item:hover {
    background: rgba(255, 107, 53, 0.1);
    transform: translateX(10px);
}

.rank-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-gray);
    min-width: 50px;
    text-align: center;
}

.ranking-item:nth-child(1) .rank-number {
    color: #ffd700;
}

.ranking-item:nth-child(2) .rank-number {
    color: #c0c0c0;
}

.ranking-item:nth-child(3) .rank-number {
    color: #cd7f32;
}

.rank-thumbnail {
    width: 100px;
    height: 140px;
    border-radius: 8px;
    overflow: hidden;
}

.rank-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.rank-info {
    flex: 1;
}

.rank-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.rank-info p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.rank-score {
    font-size: 1.5rem;
    color: var(--secondary-color);
    font-weight: bold;
}

/* VIP Section */
.vip-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 3rem;
    border-radius: 15px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.vip-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: moveBg 20s linear infinite;
}

@keyframes moveBg {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.vip-content {
    position: relative;
    z-index: 1;
}

.vip-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.vip-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.vip-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.vip-feature {
    text-align: center;
}

.vip-feature i {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    display: block;
}

/* About Section */
.about-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    line-height: 1.8;
}

.about-content p {
    margin-bottom: 1rem;
    color: var(--text-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(247, 147, 30, 0.1));
    border-radius: 10px;
}

.feature-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-item h3 {
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    background: rgba(26, 26, 46, 0.95);
    margin-top: 4rem;
    padding: 3rem 2rem 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-nav a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-gray);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.social-links a {
    color: var(--text-gray);
    font-size: 1.5rem;
    transition: all 0.3s;
}

.social-links a:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }

    nav ul {
        flex-wrap: wrap;
        gap: 1rem;
        justify-content: center;
    }

    .search-box {
        width: 100%;
    }

    .search-box input {
        width: 100%;
    }

    .slide-content h2 {
        font-size: 1.5rem;
    }

    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1rem;
    }

    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Scroll to top button */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-color);
    color: var(--text-light);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: all 0.3s;
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
}

.scroll-top:hover {
    background: var(--hover-color);
    transform: translateY(-5px);
}