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

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #e8e8e8;
    min-height: 100vh;
    overflow-x: hidden;
}

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: linear-gradient(180deg, #0f3460 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 {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 2rem;
    margin-bottom: 3rem;
}

.logo span {
    font-size: 1.8rem;
    font-weight: 700;
    color: #ff6b35;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
}

.sidebar-nav a {
    padding: 1rem 2rem;
    color: #e8e8e8;
    text-decoration: none;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.sidebar-nav a:hover {
    background: rgba(255, 107, 53, 0.1);
    border-left-color: #ff6b35;
}

.sidebar-nav a.active {
    background: rgba(255, 107, 53, 0.2);
    border-left-color: #ff6b35;
    color: #ff6b35;
}

.hamburger {
    display: none;
    position: fixed;
    top: 1.5rem;
    left: 1.5rem;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 2000;
    background: #0f3460;
    padding: 12px;
    border-radius: 8px;
}

.hamburger span {
    width: 30px;
    height: 3px;
    background: #ff6b35;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.main-content {
    margin-left: 280px;
    padding: 3rem;
    min-height: 100vh;
}

.hero {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    border-radius: 20px;
    margin-bottom: 3rem;
    box-shadow: 0 10px 40px rgba(255, 107, 53, 0.3);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: white;
}

.subtitle {
    font-size: 1.3rem;
    color: #fff;
    opacity: 0.95;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.card {
    background: rgba(15, 52, 96, 0.6);
    padding: 2.5rem;
    border-radius: 15px;
    border: 2px solid rgba(255, 107, 53, 0.2);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: #ff6b35;
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.2);
}

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

.card h2 {
    color: #ff6b35;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.card p {
    line-height: 1.6;
    color: #c8c8c8;
}

.game-showcase {
    margin-bottom: 3rem;
}

.game-showcase h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #ff6b35;
}

.game-container {
    max-width: 900px;
    margin: 0 auto;
    background: #000;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.game-container iframe {
    width: 100%;
    height: 600px;
    display: block;
}

.game-note, .play-reminder {
    text-align: center;
    margin-top: 1.5rem;
    color: #ff6b35;
    font-size: 1.1rem;
}

.important-notices {
    margin-bottom: 3rem;
}

.important-notices h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #ff6b35;
}

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

.notice-box {
    padding: 2rem;
    border-radius: 15px;
    border-left: 5px solid;
}

.notice-box.warning {
    background: rgba(255, 107, 53, 0.1);
    border-color: #ff6b35;
}

.notice-box.info {
    background: rgba(33, 150, 243, 0.1);
    border-color: #2196f3;
}

.notice-box.success {
    background: rgba(76, 175, 80, 0.1);
    border-color: #4caf50;
}

.notice-box h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.features {
    margin-bottom: 3rem;
    background: rgba(15, 52, 96, 0.4);
    padding: 3rem;
    border-radius: 15px;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #ff6b35;
}

.feature-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.feature-list li {
    font-size: 1.1rem;
    padding: 1rem;
    background: rgba(255, 107, 53, 0.05);
    border-radius: 8px;
    border-left: 4px solid #ff6b35;
}

.page-header {
    text-align: center;
    padding: 3rem 2rem;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, #0f3460 0%, #16213e 100%);
    border-radius: 15px;
}

.page-header h1 {
    font-size: 3rem;
    color: #ff6b35;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    color: #c8c8c8;
}

.legal-content {
    max-width: 900px;
    margin: 0 auto 3rem;
    background: rgba(15, 52, 96, 0.4);
    padding: 3rem;
    border-radius: 15px;
    line-height: 1.8;
}

.legal-content h2 {
    color: #ff6b35;
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.legal-content p {
    margin-bottom: 1rem;
    color: #c8c8c8;
}

.disclaimer-highlight {
    background: rgba(255, 107, 53, 0.15);
    padding: 2rem;
    border-radius: 10px;
    border: 2px solid #ff6b35;
    margin-bottom: 2rem;
}

.play-instructions {
    margin-bottom: 3rem;
}

.play-instructions h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #ff6b35;
}

.instruction-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.instruction-card {
    background: rgba(15, 52, 96, 0.6);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    border: 2px solid rgba(255, 107, 53, 0.2);
}

.instruction-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.instruction-card h3 {
    color: #ff6b35;
    margin-bottom: 1rem;
}

.footer {
    background: #0a1929;
    padding: 3rem 2rem;
    margin-top: 4rem;
    border-radius: 15px;
}

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

.footer-section h3 {
    color: #ff6b35;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section a {
    color: #c8c8c8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #ff6b35;
}

.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.show {
    display: flex;
}

.age-modal-content {
    background: linear-gradient(135deg, #0f3460 0%, #16213e 100%);
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    max-width: 500px;
    border: 3px solid #ff6b35;
    box-shadow: 0 20px 60px rgba(255, 107, 53, 0.3);
}

.age-modal-content h2 {
    color: #ff6b35;
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.age-modal-content p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

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

.btn-yes, .btn-no {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Poppins', sans-serif;
}

.btn-yes {
    background: #ff6b35;
    color: white;
}

.btn-yes:hover {
    background: #f7931e;
    transform: scale(1.05);
}

.btn-no {
    background: #666;
    color: white;
}

.btn-no:hover {
    background: #888;
}

@media (max-width: 968px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .hamburger {
        display: flex;
    }

    .main-content {
        margin-left: 0;
        padding: 5rem 1.5rem 2rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .info-cards, .notice-grid, .feature-list, .instruction-cards {
        grid-template-columns: 1fr;
    }

    .game-container iframe {
        height: 400px;
    }

    .page-header h1 {
        font-size: 2rem;
    }
}