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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    padding: 2rem 0;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: transform 0.3s ease;
}

.logo {
    padding: 0 2rem;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    font-size: 2.5rem;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0 1rem;
}

.nav-link {
    display: block;
    padding: 1rem 1.5rem;
    color: #b8c1ec;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    transform: translateX(5px);
}

.nav-link.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(90deg, #1a1a2e 0%, #16213e 100%);
    padding: 1rem;
    z-index: 1001;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.mobile-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hamburger {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 5px 0;
    transition: 0.3s;
    border-radius: 3px;
}

.main-content {
    margin-left: 280px;
    min-height: 100vh;
}

.hero-section {
    padding: 4rem 2rem;
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    margin: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.hero-content h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: #1a1a2e;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #555;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #fff;
    color: #667eea;
    border: 2px solid #667eea;
}

.btn-secondary:hover {
    background: #667eea;
    color: #fff;
}

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

.notice-card {
    background: #fff;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.notice-card:hover {
    transform: translateY(-5px);
}

.notice-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.notice-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #1a1a2e;
}

.about-section {
    background: rgba(255, 255, 255, 0.95);
    padding: 4rem 2rem;
    margin: 2rem;
    border-radius: 20px;
}

.about-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1a1a2e;
}

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

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #1a1a2e;
}

.game-section {
    padding: 4rem 2rem;
    margin: 2rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
}

.game-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #1a1a2e;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
}

.game-container {
    max-width: 900px;
    margin: 0 auto;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.game-frame {
    width: 100%;
    height: 600px;
    border: none;
    display: block;
}

.game-info {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 1.1rem;
    color: #555;
}

.info-section {
    padding: 4rem 2rem;
    margin: 2rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
}

.info-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1a1a2e;
}

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

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.step h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #1a1a2e;
}

.footer {
    background: linear-gradient(180deg, #1a1a2e 0%, #0f0f1e 100%);
    color: #b8c1ec;
    padding: 3rem 2rem 1rem;
    margin-top: 2rem;
}

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

.footer-section h4 {
    color: #fff;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

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

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

.footer-links a {
    color: #b8c1ec;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #667eea;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #888;
}

.age-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 1rem;
}

.age-modal.hidden {
    display: none;
}

.age-modal-content {
    background: #fff;
    padding: 3rem;
    border-radius: 20px;
    max-width: 500px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.age-modal-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.age-modal-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #1a1a2e;
}

.age-modal-content p {
    margin-bottom: 2rem;
    color: #555;
    line-height: 1.8;
}

.age-modal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-confirm {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.btn-deny {
    background: #e74c3c;
    color: #fff;
}

.page-header {
    background: rgba(255, 255, 255, 0.95);
    padding: 3rem 2rem;
    margin: 2rem;
    border-radius: 20px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.8rem;
    margin-bottom: 0.5rem;
    color: #1a1a2e;
}

.legal-content {
    background: rgba(255, 255, 255, 0.95);
    padding: 3rem;
    margin: 2rem;
    border-radius: 20px;
    line-height: 1.8;
}

.legal-content h2 {
    font-size: 1.8rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #1a1a2e;
}

.legal-content ul {
    margin: 1rem 0 1rem 2rem;
}

.legal-content li {
    margin-bottom: 0.5rem;
}

.play-section {
    padding: 2rem;
}

.game-container-full {
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    margin-bottom: 2rem;
}

.game-frame-full {
    width: 100%;
    height: 700px;
    border: none;
    display: block;
}

.game-instructions {
    background: rgba(255, 255, 255, 0.95);
    padding: 3rem 2rem;
    border-radius: 20px;
}

.game-instructions h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 2rem;
    color: #1a1a2e;
}

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

.instruction-card {
    text-align: center;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 12px;
}

.instruction-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.instruction-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #1a1a2e;
}

.disclaimer-section {
    padding: 2rem;
}

.disclaimer-box {
    background: #fff3cd;
    border-left: 5px solid #ffc107;
    padding: 2rem;
    border-radius: 12px;
}

.disclaimer-box h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #856404;
}

.disclaimer-box p {
    color: #856404;
    line-height: 1.8;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .mobile-header {
        display: block;
    }
    
    .main-content {
        margin-left: 0;
        padding-top: 70px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .game-frame {
        height: 400px;
    }
    
    .game-frame-full {
        height: 500px;
    }
    
    .notice-cards,
    .feature-grid,
    .steps-container,
    .instructions-grid {
        grid-template-columns: 1fr;
    }
}