/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --highlight-color: #e94560;
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --text-muted: #888888;
    --border-color: #2a2a3e;
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 20px rgba(0,0,0,0.15);
    --shadow-heavy: 0 8px 30px rgba(0,0,0,0.3);
    --gradient-primary: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --gradient-accent: linear-gradient(135deg, #e94560 0%, #ff6b6b 100%);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--primary-color);
    overflow-x: hidden;
}

/* Header Styles */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

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

.logo span {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

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

nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

nav a:hover {
    color: var(--highlight-color);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--highlight-color);
    transition: var(--transition);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    background: var(--gradient-primary);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px 50px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('images/hero-bg.jpg') center/cover;
    opacity: 0.1;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .version {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.hero .tagline {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 40px;
    font-weight: 300;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.feature-item i {
    font-size: 2.5rem;
    color: var(--highlight-color);
}

.feature-item span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.download-btn {
    background: var(--gradient-accent);
    color: white;
    padding: 15px 40px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    box-shadow: var(--shadow-medium);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

.download-info {
    margin-top: 15px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.platform-badges {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.badge {
    background: rgba(233, 69, 96, 0.2);
    color: var(--highlight-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(233, 69, 96, 0.3);
    transition: var(--transition);
}

.badge:hover {
    background: rgba(233, 69, 96, 0.3);
    transform: translateY(-2px);
}

.game-info {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.info-item i {
    color: var(--highlight-color);
    font-size: 1rem;
}

/* Main Content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-primary);
}

/* News Section */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-card {
    background: var(--secondary-color);
    border-radius: var(--border-radius);
    padding: 25px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.news-category {
    background: var(--highlight-color);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.news-date {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.news-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.news-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 15px;
}

.news-link {
    color: var(--highlight-color);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.news-link:hover {
    color: var(--text-primary);
    transform: translateX(5px);
}

/* Gallery Section */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 16/9;
    cursor: pointer;
    transition: var(--transition);
}

.gallery-item:hover {
    transform: scale(1.02);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    filter: brightness(0.8);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    padding: 20px;
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-title {
    color: white;
    font-weight: 600;
    margin-bottom: 5px;
}

.gallery-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Version History */
.version-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.version-card {
    background: var(--secondary-color);
    border-radius: var(--border-radius);
    padding: 30px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.version-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.version-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--highlight-color);
}

.version-info {
    text-align: right;
}

.version-date {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.version-size {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.version-platform {
    color: var(--highlight-color);
    font-size: 0.85rem;
    font-weight: 500;
    margin-top: 2px;
}

.version-changes {
    margin-bottom: 20px;
}

.change-category {
    margin-bottom: 15px;
}

.change-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.change-title i {
    color: var(--highlight-color);
}

.change-list {
    list-style: none;
    padding-left: 20px;
}

.change-list li {
    color: var(--text-secondary);
    margin-bottom: 5px;
    position: relative;
}

.change-list li::before {
    content: '\2022';
    color: var(--highlight-color);
    position: absolute;
    left: -15px;
}

.version-download {
    background: var(--gradient-accent);
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

.version-download:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* Reviews Section */
.reviews-header {
    text-align: center;
    margin-bottom: 50px;
}

.overall-rating {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.rating-score {
    font-size: 3rem;
    font-weight: 700;
    color: var(--highlight-color);
}

.rating-stars {
    display: flex;
    gap: 5px;
}

.rating-stars i {
    color: #ffd700;
    font-size: 1.5rem;
}

.rating-text {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.rating-distribution {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.rating-bar {
    flex: 1;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.rating-fill {
    height: 100%;
    background: var(--highlight-color);
    border-radius: 4px;
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 40px;
}

.tag {
    background: var(--secondary-color);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.tag:hover {
    background: var(--highlight-color);
    color: white;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.review-card {
    background: var(--secondary-color);
    border-radius: var(--border-radius);
    padding: 25px;
    border: 1px solid var(--border-color);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.reviewer-name {
    font-weight: 600;
    color: var(--text-primary);
}

.review-stars {
    display: flex;
    gap: 2px;
}

.review-stars i {
    color: #ffd700;
    font-size: 0.9rem;
}

.review-content {
    color: var(--text-secondary);
    line-height: 1.6;
}

.cta-section {
    text-align: center;
    background: var(--gradient-primary);
    padding: 60px 20px;
    border-radius: var(--border-radius);
    margin-top: 50px;
}

.cta-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.cta-text {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

/* Footer */
footer {
    background: var(--secondary-color);
    padding: 60px 20px 30px;
    margin-top: 80px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-section h3 {
    color: var(--highlight-color);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    line-height: 1.8;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--highlight-color);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

.footer-bottom a {
    color: var(--text-secondary);
    text-decoration: none;
    margin: 0 10px;
    transition: var(--transition);
}

.footer-bottom a:hover {
    color: var(--highlight-color);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--highlight-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-container {
        padding: 0 15px;
    }
    
    nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero .tagline {
        font-size: 1.2rem;
    }
    
    .hero-features {
        gap: 20px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .news-grid,
    .version-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .overall-rating {
        flex-direction: column;
        gap: 10px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}