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

body {
    font-family: 'Exo 2', sans-serif;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
    color: #e0e0e0;
    line-height: 1.6;
    min-height: 100vh;
}

header {
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid #00d4ff;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.header-container {
    max-width: 100%;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 900;
    color: #00d4ff;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.8);
}

.logo-icon {
    font-size: 2rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    display: block;
    width: 30px;
    height: 3px;
    background: #00d4ff;
    border-radius: 3px;
    transition: all 0.3s;
}

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

nav a {
    color: #e0e0e0;
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #00d4ff;
    transition: width 0.3s;
}

nav a:hover::after,
nav a.active::after {
    width: 80%;
}

nav a:hover,
nav a.active {
    color: #00d4ff;
}

main {
    max-width: 100%;
}

.hero-section {
    background: linear-gradient(135deg, #0f1535 0%, #1e2847 100%);
    padding: 5rem 2rem;
    text-align: center;
    border-bottom: 3px solid #00d4ff;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    font-weight: 900;
    color: #00d4ff;
    margin-bottom: 1rem;
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.6);
}

.hero-subtitle {
    font-size: 1.3rem;
    color: #b0b0b0;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: #0a0e27;
    padding: 1rem 3rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.2rem;
    transition: all 0.3s;
    box-shadow: 0 5px 25px rgba(0, 212, 255, 0.4);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 35px rgba(0, 212, 255, 0.6);
}

.info-section {
    padding: 5rem 2rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.info-card {
    background: rgba(30, 40, 71, 0.6);
    padding: 2.5rem;
    border-radius: 15px;
    border: 2px solid rgba(0, 212, 255, 0.3);
    transition: all 0.3s;
}

.info-card:hover {
    transform: translateY(-5px);
    border-color: #00d4ff;
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.3);
}

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

.info-card h3 {
    font-family: 'Orbitron', sans-serif;
    color: #00d4ff;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.game-section {
    padding: 5rem 2rem;
    background: rgba(15, 21, 53, 0.5);
}

.game-container {
    max-width: 1400px;
    margin: 0 auto;
}

.game-container h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    color: #00d4ff;
    text-align: center;
    margin-bottom: 2rem;
}

.game-wrapper {
    background: #000;
    border-radius: 15px;
    overflow: hidden;
    border: 3px solid #00d4ff;
    box-shadow: 0 10px 50px rgba(0, 212, 255, 0.4);
}

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

.game-note {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 1.1rem;
    color: #00d4ff;
}

.features-section {
    padding: 5rem 2rem;
}

.features-section h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    color: #00d4ff;
    text-align: center;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.feature-item {
    background: rgba(30, 40, 71, 0.4);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    text-align: center;
}

.feature-emoji {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 1rem;
}

.feature-item h4 {
    font-family: 'Orbitron', sans-serif;
    color: #00d4ff;
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.notice-section {
    padding: 5rem 2rem;
    background: rgba(15, 21, 53, 0.5);
}

.notice-box {
    max-width: 1000px;
    margin: 0 auto;
    background: rgba(30, 40, 71, 0.8);
    padding: 3rem;
    border-radius: 15px;
    border: 2px solid #ffaa00;
}

.notice-box h3 {
    font-family: 'Orbitron', sans-serif;
    color: #ffaa00;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.notice-box ul {
    list-style-position: inside;
    line-height: 2;
}

.notice-box li {
    margin-bottom: 0.5rem;
}

footer {
    background: rgba(10, 14, 39, 0.95);
    border-top: 2px solid #00d4ff;
    padding: 3rem 2rem 1rem;
    margin-top: 5rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-family: 'Orbitron', sans-serif;
    color: #00d4ff;
    margin-bottom: 1rem;
}

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

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

.footer-links a {
    color: #b0b0b0;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #00d4ff;
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 212, 255, 0.3);
    color: #808080;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

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

.modal-content {
    background: linear-gradient(135deg, #1e2847 0%, #0f1535 100%);
    padding: 3rem;
    border-radius: 20px;
    max-width: 500px;
    border: 3px solid #00d4ff;
    box-shadow: 0 0 50px rgba(0, 212, 255, 0.5);
    text-align: center;
}

.modal-content h2 {
    font-family: 'Orbitron', sans-serif;
    color: #00d4ff;
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

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

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

.btn-primary,
.btn-secondary {
    padding: 1rem 2rem;
    border: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: #0a0e27;
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 25px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #e0e0e0;
    border: 2px solid #808080;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.play-section {
    padding: 4rem 2rem;
}

.play-container {
    max-width: 1400px;
    margin: 0 auto;
}

.play-container h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    color: #00d4ff;
    text-align: center;
    margin-bottom: 1.5rem;
}

.play-intro {
    text-align: center;
    font-size: 1.2rem;
    color: #b0b0b0;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.play-info {
    max-width: 1000px;
    margin: 3rem auto 0;
    background: rgba(30, 40, 71, 0.6);
    padding: 2rem;
    border-radius: 15px;
    border: 2px solid rgba(0, 212, 255, 0.3);
}

.play-info h3 {
    font-family: 'Orbitron', sans-serif;
    color: #00d4ff;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.play-info ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.play-info li {
    margin-bottom: 0.8rem;
    padding-left: 0.5rem;
}

.play-reminder {
    background: rgba(255, 170, 0, 0.1);
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid #ffaa00;
    color: #ffaa00;
}

.content-section {
    padding: 4rem 2rem;
}

.content-container {
    max-width: 1000px;
    margin: 0 auto;
    background: rgba(30, 40, 71, 0.4);
    padding: 3rem;
    border-radius: 15px;
    border: 2px solid rgba(0, 212, 255, 0.3);
}

.content-container h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    color: #00d4ff;
    margin-bottom: 0.5rem;
}

.last-updated {
    color: #808080;
    font-style: italic;
    margin-bottom: 2rem;
}

.content-container h2 {
    font-family: 'Orbitron', sans-serif;
    color: #00d4ff;
    font-size: 1.8rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.content-container h3 {
    font-family: 'Orbitron', sans-serif;
    color: #00d4ff;
    font-size: 1.4rem;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
}

.content-container h4 {
    color: #00d4ff;
    font-size: 1.2rem;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
}

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

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

.content-container p {
    margin-bottom: 1rem;
}

.important-notice {
    background: rgba(0, 212, 255, 0.1);
    padding: 2rem;
    border-radius: 10px;
    border: 2px solid #00d4ff;
    margin-top: 2rem;
}

.disclaimer-highlight {
    background: rgba(255, 170, 0, 0.1);
    padding: 2rem;
    border-radius: 10px;
    border: 2px solid #ffaa00;
    margin-bottom: 2rem;
}

.disclaimer-highlight h2 {
    color: #ffaa00;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 14, 39, 0.98);
        flex-direction: column;
        padding: 2rem;
        transition: left 0.3s;
        gap: 0;
    }

    nav.active {
        left: 0;
    }

    nav a {
        padding: 1rem;
        border-bottom: 1px solid rgba(0, 212, 255, 0.2);
    }

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

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    .game-frame {
        height: 500px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

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

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

    .content-container {
        padding: 2rem 1.5rem;
    }

    .content-container h1 {
        font-size: 2rem;
    }
}