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

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --dark-bg: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #334155;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--primary-color);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 2rem;
    color: var(--accent-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 3px;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s;
}

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

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

/* Hero Section */
.hero {
    background: rgba(15, 23, 42, 0.5);
    padding: 4rem 0;
    text-align: center;
    margin-bottom: 3rem;
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #667eea, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* Main Content */
.main {
    padding: 2rem 0 4rem;
}

.card {
    background: rgba(30, 41, 59, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.card h2 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Notices */
.notices {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.notice-card {
    background: rgba(30, 41, 59, 0.9);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 12px;
    border: 2px solid;
    transition: transform 0.3s, box-shadow 0.3s;
}

.notice-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.notice-primary {
    border-color: var(--primary-color);
}

.notice-secondary {
    border-color: var(--secondary-color);
}

.notice-tertiary {
    border-color: var(--accent-color);
}

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

.notice-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

/* Game Section */
.game-section {
    margin: 3rem 0;
}

.game-section h2 {
    text-align: center;
    margin-bottom: 1rem;
    font-size: 2rem;
    color: var(--text-primary);
}

.game-intro {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.game-container {
    background: rgba(15, 23, 42, 0.9);
    border-radius: 15px;
    padding: 1rem;
    border: 2px solid var(--primary-color);
}

.game-frame {
    width: 100%;
    height: 600px;
    border-radius: 10px;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.info-card {
    background: rgba(30, 41, 59, 0.9);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s;
}

.info-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
}

.info-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

/* Footer */
.footer {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 3rem 0 1rem;
    border-top: 2px solid var(--primary-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 900;
}

.footer-links h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-links a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Age Modal */
.age-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    justify-content: center;
    align-items: center;
}

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

.age-modal-content {
    background: linear-gradient(135deg, #1e293b, #334155);
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    max-width: 500px;
    border: 2px solid var(--primary-color);
}

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

.age-modal-content h2 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.age-modal-content p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.age-modal-subtitle {
    font-size: 1.2rem;
    font-weight: 700;
    margin-top: 1.5rem;
    color: var(--text-primary);
}

.age-modal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.btn-age-yes,
.btn-age-no {
    padding: 1rem 2rem;
    border: none;
    border-radius: 10px;
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-age-yes {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
}

.btn-age-no {
    background: linear-gradient(135deg, var(--error-color), #dc2626);
    color: white;
}

.btn-age-yes:hover,
.btn-age-no:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

/* Page Header */
.page-header {
    text-align: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

/* Legal Content */
.legal-content h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

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

.legal-content li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* Play Page */
.play-header {
    text-align: center;
    margin-bottom: 2rem;
}

.play-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #667eea, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.controls-list,
.tips-list {
    margin-left: 1.5rem;
    margin-top: 1rem;
}

.controls-list li,
.tips-list li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
}

.browser-note {
    background: rgba(99, 102, 241, 0.1);
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    margin-top: 1rem;
}

/* Mobile Styles */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .nav.active {
        max-height: 300px;
        border-top: 1px solid var(--border-color);
    }

    .nav a {
        padding: 1rem;
        border-bottom: 1px solid var(--border-color);
    }

    .nav a::after {
        display: none;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
    }

    .notices {
        grid-template-columns: 1fr;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .game-frame {
        height: 400px;
    }

    .age-modal-content {
        margin: 1rem;
        padding: 2rem;
    }

    .age-modal-buttons {
        flex-direction: column;
    }

    .btn-age-yes,
    .btn-age-no {
        width: 100%;
    }
}