@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Exo+2:wght@300;400;600&display=swap');

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

:root {
    --primary-dark: #0a0e27;
    --secondary-dark: #151932;
    --accent-cyan: #00d9ff;
    --accent-purple: #a855f7;
    --text-light: #e2e8f0;
    --text-dim: #94a3b8;
}

body {
    font-family: 'Exo 2', sans-serif;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
    color: var(--text-light);
    min-height: 100vh;
    line-height: 1.6;
}

.site-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: 280px;
    background: rgba(21, 25, 50, 0.95);
    backdrop-filter: blur(10px);
    border-right: 2px solid var(--accent-cyan);
    padding: 2rem 0;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 1000;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.sidebar.mobile-hidden {
    transform: none;
}

.logo-section {
    text-align: center;
    margin-bottom: 3rem;
    padding: 0 1.5rem;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-menu {
    list-style: none;
    padding: 0 1rem;
}

.nav-menu li {
    margin-bottom: 0.5rem;
}

.nav-menu a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--text-light);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    transform: translateX(5px);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    background: var(--accent-cyan);
    border: none;
    padding: 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-dark);
    border-radius: 2px;
    transition: 0.3s;
}

/* Main Content */
.main-content {
    margin-left: 280px;
    flex: 1;
    padding: 2rem;
    width: calc(100% - 280px);
}

.hero-section {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1), rgba(168, 85, 247, 0.1));
    border: 2px solid var(--accent-cyan);
    border-radius: 16px;
    padding: 3rem;
    margin-bottom: 3rem;
    text-align: center;
}

.hero-section h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-section p {
    font-size: 1.2rem;
    color: var(--text-dim);
    max-width: 700px;
    margin: 0 auto;
}

.content-section {
    background: rgba(21, 25, 50, 0.6);
    border-radius: 16px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(0, 217, 255, 0.2);
}

.content-section h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.content-section h3 {
    color: var(--accent-purple);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.content-section p,
.content-section li {
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.content-section ul,
.content-section ol {
    margin-left: 2rem;
}

.notice-box {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(168, 85, 247, 0.2));
    border-left: 4px solid #ef4444;
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 8px;
}

.notice-box h3 {
    color: #ef4444;
    margin-top: 0;
}

.game-container {
    background: rgba(10, 14, 39, 0.8);
    border: 2px solid var(--accent-cyan);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem 0;
    text-align: center;
}

.game-frame {
    width: 100%;
    max-width: 1200px;
    height: 700px;
    border: none;
    border-radius: 12px;
    background: #000;
}

.footer {
    background: rgba(21, 25, 50, 0.95);
    border-top: 2px solid var(--accent-cyan);
    padding: 2rem;
    margin-top: 4rem;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer p {
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* Age Verification Modal */
.age-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.age-modal.active {
    display: flex;
}

.age-modal-content {
    background: var(--secondary-dark);
    border: 2px solid var(--accent-cyan);
    border-radius: 16px;
    padding: 3rem;
    max-width: 500px;
    text-align: center;
}

.age-modal-content h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
}

.age-modal-content p {
    color: var(--text-dim);
    margin-bottom: 2rem;
}

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

.btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Orbitron', sans-serif;
}

.btn-yes {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: var(--primary-dark);
}

.btn-yes:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.5);
}

.btn-no {
    background: transparent;
    border: 2px solid #ef4444;
    color: #ef4444;
}

.btn-no:hover {
    background: #ef4444;
    color: white;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .sidebar {
        transform: translateX(0);
    }
    
    .sidebar.mobile-hidden {
        transform: translateX(-100%);
    }
    
    .sidebar.mobile-visible {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
        padding: 5rem 1rem 1rem;
    }
    
    .hero-section {
        padding: 2rem 1rem;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .content-section {
        padding: 1.5rem;
    }
    
    .game-frame {
        height: 500px;
    }
    
    .age-modal-content {
        margin: 1rem;
        padding: 2rem;
    }
    
    .age-buttons {
        flex-direction: column;
    }
}