/* CSS Variables for Theme Colors */
:root {
    --primary-color: #5f595d;
    --secondary-color: #54a7d0;
    --accent-color: #44709b;
    --light-color: #c1c0ba;
    --white: #ffffff;
    --black: #000000;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    --gradient-hero: linear-gradient(135deg, rgba(95, 89, 93, 0.9), rgba(84, 167, 208, 0.9));
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.12), 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15), 0 10px 10px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Typography */
    --font-primary: 'Noto Sans SC', sans-serif;
    --font-display: 'Orbitron', monospace;
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 80px 0;
    --section-padding-mobile: 60px 0;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Section Titles */
.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
    position: relative;
}

.section-title i {
    margin-right: 0.5rem;
    color: var(--secondary-color);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-secondary);
    border-radius: 2px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition-normal);
    cursor: pointer;
    text-decoration: none;
    border: 2px solid transparent;
}

.btn i {
    margin-right: 8px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: transparent;
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-secondary:hover {
    background: var(--secondary-color);
    color: var(--white);
    transform: translateY(-2px);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    margin-right: 10px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    display: flex;
    align-items: center;
    color: var(--gray-700);
    font-weight: 500;
    transition: var(--transition-fast);
}

.nav-link i {
    margin-right: 0.5rem;
    color: var(--secondary-color);
}

.nav-link:hover {
    color: var(--secondary-color);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: var(--gradient-hero);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.title-main {
    display: block;
    font-family: var(--font-display);
}

.title-sub {
    display: block;
    font-size: 1.5rem;
    opacity: 0.8;
    font-weight: 400;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.game-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-item {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.info-item i {
    margin-right: 0.5rem;
    color: var(--light-color);
}

.game-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.tag {
    background: rgba(84, 167, 208, 0.2);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid rgba(84, 167, 208, 0.3);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image {
    text-align: center;
}

.hero-img {
    max-width: 100%;
    border-radius: 15px;
    box-shadow: var(--shadow-xl);
    transition: var(--transition-normal);
}

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

/* News Section */
.news {
    padding: var(--section-padding);
    background: var(--gray-100);
}

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

.news-card {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

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

.news-date {
    display: flex;
    align-items: center;
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.news-date i {
    margin-right: 0.5rem;
}

.news-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.news-excerpt {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.news-link {
    display: inline-flex;
    align-items: center;
    color: var(--secondary-color);
    font-weight: 500;
    transition: var(--transition-fast);
}

.news-link i {
    margin-right: 0.5rem;
}

.news-link:hover {
    color: var(--accent-color);
}

/* Gallery Section */
.gallery {
    padding: var(--section-padding);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.gallery-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    cursor: pointer;
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition-normal);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(84, 167, 208, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay i {
    font-size: 2rem;
    color: var(--white);
}

/* Reviews Section */
.reviews {
    padding: var(--section-padding);
    background: var(--gray-100);
}

.reviews-stats {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
}

.rating-overview {
    text-align: center;
}

.rating-score {
    font-size: 3rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.rating-stars {
    margin-bottom: 0.5rem;
}

.rating-stars i {
    color: #ffc107;
    font-size: 1.2rem;
    margin: 0 2px;
}

.rating-count {
    color: var(--gray-600);
    font-size: 0.9rem;
}

.rating-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.rating-tag {
    background: var(--gradient-secondary);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.reviews-carousel {
    position: relative;
    overflow: hidden;
    margin-bottom: 2rem;
}

.review-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    display: none;
    animation: fadeIn 0.5s ease;
}

.review-card.active {
    display: block;
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.reviewer-name {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.review-stars i {
    color: #ffc107;
    margin-right: 2px;
}

.review-date {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.review-text {
    color: var(--gray-700);
    line-height: 1.6;
    font-style: italic;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.carousel-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-secondary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.carousel-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

/* Version History Section */
.versions {
    padding: var(--section-padding);
}

.version-timeline {
    position: relative;
}

.version-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-secondary);
}

.version-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 80px;
}

.version-marker {
    position: absolute;
    left: 20px;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--secondary-color);
    border: 4px solid var(--white);
    box-shadow: var(--shadow-md);
}

.version-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.version-content:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}

.version-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

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

.version-date {
    color: var(--secondary-color);
    font-weight: 500;
}

.version-size {
    background: var(--light-color);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.9rem;
}

.version-features h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.version-features ul {
    margin-bottom: 1.5rem;
}

.version-features li {
    padding: 0.3rem 0;
    color: var(--gray-700);
    position: relative;
    padding-left: 1.5rem;
}

.version-features li::before {
    content: '•';
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.version-platforms {
    margin-bottom: 1.5rem;
}

.platform {
    background: var(--gradient-secondary);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.9rem;
    margin-right: 0.5rem;
}

.version-download {
    display: inline-flex;
    align-items: center;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    transition: var(--transition-normal);
    text-decoration: none;
}

.version-download i {
    margin-right: 0.5rem;
}

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

.version-download.disabled {
    background: var(--gray-400);
    cursor: not-allowed;
}

.version-download.disabled:hover {
    transform: none;
    box-shadow: none;
}

/* FAQ Section */
.faq {
    padding: var(--section-padding);
    background: var(--gray-100);
}

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

.faq-item {
    background: var(--white);
    border-radius: 15px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-normal);
}

.faq-item:hover {
    box-shadow: var(--shadow-lg);
}

.faq-question {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--white);
    transition: var(--transition-fast);
}

.faq-question:hover {
    background: var(--gray-100);
}

.faq-question h3 {
    color: var(--primary-color);
    font-weight: 600;
    margin: 0;
}

.faq-question i {
    color: var(--secondary-color);
    transition: var(--transition-fast);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 2rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 2rem 1.5rem;
    max-height: 200px;
}

.faq-answer p {
    color: var(--gray-700);
    line-height: 1.6;
    margin: 0;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 3rem 0 1rem;
}

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

.footer-title {
    display: flex;
    align-items: center;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-logo {
    width: 24px;
    height: 24px;
    margin-right: 0.5rem;
}

.footer-description {
    color: var(--light-color);
    line-height: 1.6;
}

.footer-subtitle {
    color: var(--white);
    margin-bottom: 1rem;
    font-weight: 600;
}

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

.footer-links a {
    color: var(--light-color);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(193, 192, 186, 0.2);
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copyright {
    color: var(--light-color);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

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

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

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

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --section-padding: var(--section-padding-mobile);
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        gap: 1rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .game-info {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-stats {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .rating-tags {
        justify-content: center;
    }
    
    .version-timeline::before {
        left: 15px;
    }
    
    .version-item {
        padding-left: 50px;
    }
    
    .version-marker {
        left: 5px;
    }
    
    .version-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .title-sub {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .news-card,
    .version-content {
        padding: 1.5rem;
    }
    
    .faq-question {
        padding: 1rem 1.5rem;
    }
    
    .faq-answer {
        padding: 0 1.5rem;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 1.5rem 1rem;
    }
}

/* Print Styles */
@media print {
    .header,
    .back-to-top,
    .carousel-controls {
        display: none;
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    * {
        box-shadow: none !important;
    }
}