@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600;700;800&family=Spectral:wght@300;400;500;600&display=swap');

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

:root {
    --line-blue: #3b82f6;
    --line-indigo: #6366f1;
    --line-violet: #8b5cf6;
    --space-dark: #0f0f23;
    --space-mid: #1a1a2e;
    --space-light: #252541;
    --text-bright: #e2e8f0;
    --text-dim: #94a3b8;
}

body {
    font-family: 'Archivo', sans-serif;
    background: var(--space-dark);
    color: var(--text-bright);
    line-height: 1.75;
}

/* Age Modal */
.age-gate {
    position: fixed;
    inset: 0;
    background: rgba(15, 15, 35, 0.98);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gate-box {
    background: var(--space-mid);
    padding: 50px;
    max-width: 460px;
    text-align: center;
    border-left: 5px solid var(--line-blue);
    border-right: 5px solid var(--line-violet);
}

.gate-box h2 {
    font-family: 'Spectral', serif;
    font-size: 2rem;
    color: var(--line-indigo);
    margin-bottom: 20px;
}

.gate-box p {
    color: var(--text-dim);
    margin-bottom: 30px;
}

.gate-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.gate-btn {
    padding: 14px 40px;
    font-family: 'Archivo', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
}

.gate-btn.proceed {
    background: linear-gradient(90deg, var(--line-blue), var(--line-violet));
    color: white;
}

.gate-btn.proceed:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.gate-btn.retreat {
    background: transparent;
    border: 2px solid var(--text-dim);
    color: var(--text-dim);
}

.gate-btn.retreat:hover {
    border-color: var(--line-violet);
    color: var(--line-violet);
}

/* Header */
.site-nav {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: var(--space-mid);
    border-bottom: 3px solid;
    border-image: linear-gradient(90deg, var(--line-blue), var(--line-indigo), var(--line-violet)) 1;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 18px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    font-family: 'Spectral', serif;
    font-size: 1.8rem;
    font-weight: 600;
    background: linear-gradient(90deg, var(--line-blue), var(--line-violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.nav-list {
    display: flex;
    gap: 40px;
}

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

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--line-blue), var(--line-violet));
    transition: width 0.3s;
}

.nav-list a:hover::after {
    width: 100%;
}

/* Hamburger */
.burger-icon {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.burger-icon span {
    width: 26px;
    height: 2px;
    background: var(--line-indigo);
    transition: all 0.3s;
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 75px;
    left: 0;
    right: 0;
    background: var(--space-mid);
    padding: 30px;
    flex-direction: column;
    gap: 20px;
    border-bottom: 3px solid;
    border-image: linear-gradient(90deg, var(--line-blue), var(--line-violet)) 1;
}

.mobile-nav.visible {
    display: flex;
}

.mobile-nav a {
    color: var(--text-bright);
    text-decoration: none;
    font-size: 1.1rem;
}

/* Hero */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 30px 80px;
    background: 
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 50px,
            rgba(99, 102, 241, 0.03) 50px,
            rgba(99, 102, 241, 0.03) 51px
        ),
        var(--space-dark);
}

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

.hero-inner h1 {
    font-family: 'Spectral', serif;
    font-size: 3.5rem;
    background: linear-gradient(90deg, var(--line-blue), var(--line-indigo), var(--line-violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 25px;
}

.hero-inner p {
    font-size: 1.2rem;
    color: var(--text-dim);
    max-width: 700px;
    margin: 0 auto 40px;
}

.line-btn {
    display: inline-block;
    padding: 16px 55px;
    background: linear-gradient(90deg, var(--line-blue), var(--line-violet));
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.line-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.3);
}

/* Cards */
.cards-section {
    padding: 80px 30px;
    background: var(--space-mid);
}

.cards-flex {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.card {
    flex: 1;
    min-width: 300px;
    max-width: 380px;
    padding: 40px 30px;
    background: var(--space-light);
    border-top: 4px solid;
    border-image: linear-gradient(90deg, var(--line-blue), var(--line-violet)) 1;
    text-align: center;
}

.card .card-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.card h3 {
    font-family: 'Spectral', serif;
    color: var(--line-indigo);
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.card p {
    color: var(--text-dim);
    font-size: 0.95rem;
}

/* Game Section */
.game-section {
    padding: 80px 30px;
    background: var(--space-dark);
}

.game-section h2 {
    font-family: 'Spectral', serif;
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 45px;
    background: linear-gradient(90deg, var(--line-blue), var(--line-violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.game-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--space-mid);
    padding: 12px;
    border-left: 4px solid var(--line-blue);
    border-right: 4px solid var(--line-violet);
}

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

/* Content */
.content-section {
    padding: 80px 30px;
    background: var(--space-light);
}

.content-box {
    max-width: 900px;
    margin: 0 auto;
}

.content-box h2 {
    font-family: 'Spectral', serif;
    font-size: 2rem;
    color: var(--line-indigo);
    margin-bottom: 25px;
}

.content-box p {
    color: var(--text-dim);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

/* Features */
.features-section {
    padding: 80px 30px;
    background: var(--space-mid);
}

.features-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.feature {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: var(--space-light);
    border-left: 4px solid var(--line-indigo);
}

.feature .feat-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.feature h3 {
    font-family: 'Spectral', serif;
    color: var(--text-bright);
    margin-bottom: 10px;
}

.feature p {
    color: var(--text-dim);
    font-size: 0.95rem;
}

/* Footer */
.site-footer {
    background: var(--space-dark);
    padding: 55px 30px;
    border-top: 3px solid;
    border-image: linear-gradient(90deg, var(--line-blue), var(--line-indigo), var(--line-violet)) 1;
}

.footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

.footer-inner > p {
    color: var(--text-dim);
    margin-bottom: 25px;
}

.help-links {
    display: flex;
    justify-content: center;
    gap: 45px;
    flex-wrap: wrap;
    margin-bottom: 25px;
}

.help-links a {
    color: var(--line-indigo);
    text-decoration: none;
    transition: color 0.3s;
}

.help-links a:hover {
    color: var(--line-violet);
}

.footer-end {
    padding-top: 20px;
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    color: var(--text-dim);
    font-size: 0.85rem;
    opacity: 0.7;
}

/* Page Styles */
.page-hero {
    padding: 140px 30px 60px;
    background: var(--space-mid);
    text-align: center;
}

.page-hero h1 {
    font-family: 'Spectral', serif;
    font-size: 2.8rem;
    background: linear-gradient(90deg, var(--line-blue), var(--line-violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-content {
    padding: 60px 30px;
    background: var(--space-light);
}

.page-content .inner {
    max-width: 900px;
    margin: 0 auto;
}

.page-content h2 {
    font-family: 'Spectral', serif;
    font-size: 1.5rem;
    color: var(--line-indigo);
    margin: 35px 0 15px;
}

.page-content p {
    color: var(--text-dim);
    margin-bottom: 15px;
}

.page-content ul {
    list-style: none;
    padding-left: 20px;
    margin-bottom: 20px;
}

.page-content ul li {
    color: var(--text-dim);
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.page-content ul li::before {
    content: '—';
    color: var(--line-indigo);
    position: absolute;
    left: 0;
}

/* Responsive */
@media (max-width: 768px) {
    .burger-icon {
        display: flex;
    }
    
    .nav-list {
        display: none;
    }
    
    .hero-inner h1 {
        font-size: 2.4rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .game-wrapper iframe {
        height: 420px;
    }
    
    .help-links {
        flex-direction: column;
        gap: 12px;
    }
}