@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=IBM+Plex+Sans:wght@300;400;500&display=swap');

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

:root {
    --cyan: #06b6d4;
    --cyan-dark: #0891b2;
    --slate-900: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-200: #e2e8f0;
    --white: #ffffff;
}

body {
    font-family: 'IBM Plex Sans', sans-serif;
    background: var(--slate-900);
    color: var(--slate-200);
    line-height: 1.7;
}

.navbar {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    padding: 1rem 2rem;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(6, 182, 212, 0.2);
}

.navbar-wrap {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-badge {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--cyan), var(--cyan-dark));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--slate-900);
}

.logo-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
}

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

.nav-links a {
    color: var(--slate-200);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    opacity: 0.8;
    transition: opacity 0.2s, color 0.2s;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--cyan);
}

.menu-btn {
    display: none;
    cursor: pointer;
    padding: 8px;
}

.menu-btn div {
    width: 24px;
    height: 2px;
    background: var(--cyan);
    margin: 5px 0;
}

.mobile-panel {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--slate-800);
    z-index: 2000;
    padding: 2rem;
    transition: right 0.3s;
}

.mobile-panel.active {
    right: 0;
}

.mobile-close {
    font-size: 1.8rem;
    color: var(--cyan);
    cursor: pointer;
    display: block;
    text-align: right;
    margin-bottom: 2rem;
}

.mobile-panel a {
    display: block;
    padding: 1rem 0;
    color: var(--slate-200);
    text-decoration: none;
    font-family: 'Space Grotesk', sans-serif;
    border-bottom: 1px solid var(--slate-700);
}

.mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1500;
    display: none;
}

.mobile-overlay.active {
    display: block;
}

main {
    padding-top: 70px;
}

.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, var(--slate-900) 0%, var(--slate-800) 100%);
}

.hero-wrap {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.hero-text h1 span {
    color: var(--cyan);
}

.hero-text p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.8;
}

.cta-btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--cyan);
    color: var(--slate-900);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    text-decoration: none;
    border-radius: 8px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.3);
}

.hero-visual {
    text-align: center;
    padding: 2rem;
    background: var(--slate-800);
    border-radius: 16px;
    border: 1px solid var(--slate-700);
}

.hero-visual .icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.notice-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.notice-item {
    background: var(--slate-800);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--slate-700);
}

.notice-item .ico {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.notice-item h3 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--cyan);
    margin-bottom: 0.5rem;
}

.notice-item p {
    font-size: 0.9rem;
    opacity: 0.7;
}

.game-section {
    padding: 4rem 2rem;
    background: var(--slate-800);
}

.game-section h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--white);
}

.game-frame {
    max-width: 980px;
    margin: 0 auto;
    background: var(--slate-900);
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid var(--cyan);
}

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

.stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--cyan), var(--cyan-dark));
    flex-wrap: wrap;
}

.stat {
    text-align: center;
    color: var(--slate-900);
}

.stat .num {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
}

.stat .txt {
    font-size: 0.9rem;
    opacity: 0.8;
}

.content-block {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.content-block h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.6rem;
    color: var(--cyan);
    margin-bottom: 1rem;
}

.content-block p {
    opacity: 0.8;
    margin-bottom: 1rem;
}

.page-head {
    padding: 6rem 2rem 3rem;
    background: var(--slate-800);
    text-align: center;
    border-bottom: 1px solid var(--slate-700);
}

.page-head h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.2rem;
    color: var(--white);
}

.doc-body {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.doc-body h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.2rem;
    color: var(--cyan);
    margin: 2rem 0 0.75rem;
}

.doc-body p {
    opacity: 0.8;
    margin-bottom: 1rem;
}

.doc-body ul {
    list-style: none;
    margin-bottom: 1rem;
}

.doc-body ul li {
    opacity: 0.8;
    padding: 0.4rem 0 0.4rem 1.5rem;
    position: relative;
}

.doc-body ul li::before {
    content: '→';
    color: var(--cyan);
    position: absolute;
    left: 0;
}

footer {
    background: var(--slate-800);
    padding: 3rem 2rem;
    border-top: 1px solid var(--slate-700);
}

.footer-inner {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

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

.footer-nav a {
    color: var(--slate-200);
    text-decoration: none;
    font-size: 0.9rem;
    opacity: 0.7;
}

.footer-nav a:hover {
    color: var(--cyan);
    opacity: 1;
}

.responsible {
    padding-top: 1.5rem;
    border-top: 1px solid var(--slate-700);
}

.responsible p {
    font-size: 0.85rem;
    opacity: 0.6;
    margin-bottom: 0.75rem;
}

.responsible a {
    color: var(--cyan);
    margin: 0 0.5rem;
    font-size: 0.85rem;
}

.age-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(6, 182, 212, 0.2);
    border: 1px solid var(--cyan);
    color: var(--cyan);
    border-radius: 6px;
    font-size: 0.85rem;
    margin-top: 1rem;
}

.age-gate {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.98);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.age-gate.cleared {
    display: none;
}

.age-dialog {
    background: var(--slate-800);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    max-width: 420px;
    margin: 1rem;
    border: 1px solid var(--slate-700);
}

.age-dialog h2 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--cyan);
    margin-bottom: 1rem;
}

.age-dialog p {
    opacity: 0.8;
    margin-bottom: 1.5rem;
}

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

.age-btns button {
    padding: 0.85rem 2rem;
    border-radius: 8px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    cursor: pointer;
    border: none;
}

.btn-confirm {
    background: var(--cyan);
    color: var(--slate-900);
}

.btn-deny {
    background: transparent;
    border: 2px solid #ef4444 !important;
    color: #ef4444;
}

.denied {
    display: none;
    text-align: center;
    padding: 2rem;
    color: var(--white);
}

.denied h3 {
    color: #ef4444;
}

@media (max-width: 900px) {
    .hero-wrap {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .menu-btn {
        display: block;
    }
    
    .hero-text h1 {
        font-size: 2.2rem;
    }
    
    .notice-row {
        grid-template-columns: 1fr;
    }
    
    .game-frame iframe {
        height: 400px;
    }
}