@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

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

:root {
    --space-dark: #0b0d17;
    --space-mid: #151928;
    --nebula: #4c1d95;
    --star: #8b5cf6;
    --cosmic: #c4b5fd;
    --nova: #fcd34d;
    --white: #f1f5f9;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--space-dark);
    color: var(--white);
    min-height: 100vh;
    line-height: 1.7;
}

h1, h2, h3, h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
}

a {
    color: var(--cosmic);
    text-decoration: none;
}

/* Navigation */
.nav-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(11, 13, 23, 0.95);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid rgba(139, 92, 246, 0.2);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1500px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

.brand-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-area svg {
    width: 46px;
    height: 46px;
}

.brand-name {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--star), var(--cosmic));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hamburger {
    display: none;
    background: none;
    border: 1px solid var(--star);
    border-radius: 8px;
    padding: 8px 10px;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--star);
    margin: 5px 0;
    border-radius: 1px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-links a {
    color: rgba(241, 245, 249, 0.7);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.25s;
}

.nav-links a:hover {
    color: var(--white);
    background: rgba(139, 92, 246, 0.2);
}

/* Hero */
.hero {
    padding: 10rem 2rem 4rem;
    text-align: center;
    background: radial-gradient(ellipse at 50% 30%, rgba(76, 29, 149, 0.3) 0%, transparent 60%);
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 4rem);
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--white), var(--cosmic));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text {
    font-size: 1.1rem;
    color: rgba(241, 245, 249, 0.75);
    max-width: 700px;
    margin: 0 auto;
}

/* Feature Cards */
.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto 3rem;
    padding: 0 2rem;
}

.feature-card {
    background: linear-gradient(145deg, var(--space-mid), var(--space-dark));
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
}

.feature-card .emoji {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--nova);
    margin-bottom: 0.6rem;
    font-size: 1.2rem;
}

.feature-card p {
    color: rgba(241, 245, 249, 0.7);
    font-size: 0.95rem;
}

/* Game Portal */
.game-portal {
    max-width: 1400px;
    margin: 0 auto 4rem;
    padding: 0 2rem;
}

.portal-frame {
    background: var(--space-mid);
    border: 2px solid var(--nebula);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 0 60px rgba(76, 29, 149, 0.4);
}

.portal-frame iframe {
    width: 100%;
    height: 580px;
    border: none;
    display: block;
}

/* Info Section */
.info-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1300px;
    margin: 0 auto 4rem;
    padding: 0 2rem;
}

.info-item {
    background: rgba(21, 25, 40, 0.7);
    padding: 1.8rem;
    border-radius: 12px;
    border-left: 3px solid var(--star);
}

.info-item h3 {
    color: var(--cosmic);
    margin-bottom: 0.6rem;
}

.info-item p {
    color: rgba(241, 245, 249, 0.75);
}

/* Page Styles */
.page-hero {
    padding: 8rem 2rem 2rem;
    text-align: center;
    background: radial-gradient(ellipse at 50% 50%, rgba(76, 29, 149, 0.15) 0%, transparent 70%);
}

.page-hero h1 {
    color: var(--cosmic);
    font-size: 2.3rem;
}

.page-article {
    max-width: 850px;
    margin: 0 auto;
    padding: 2rem 2rem 4rem;
}

.page-article h2 {
    color: var(--nova);
    font-size: 1.4rem;
    margin: 2rem 0 0.7rem;
}

.page-article p {
    color: rgba(241, 245, 249, 0.8);
    margin-bottom: 1rem;
}

.page-article ul {
    margin: 0.8rem 0 1.5rem 1.5rem;
}

.page-article li {
    color: rgba(241, 245, 249, 0.75);
    margin-bottom: 0.4rem;
}

/* Game Tips */
.game-tips {
    background: rgba(76, 29, 149, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 1.5rem;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.game-tips h3 {
    color: var(--star);
    margin-bottom: 0.6rem;
}

/* Footer */
.cosmic-footer {
    background: var(--space-mid);
    border-top: 1px solid rgba(139, 92, 246, 0.2);
    padding: 2rem;
    text-align: center;
}

.footer-resources {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 1rem;
}

.footer-resources a {
    color: var(--star);
    font-weight: 600;
}

.footer-copy {
    color: rgba(241, 245, 249, 0.4);
    font-size: 0.85rem;
}

/* Age Modal */
.age-overlay {
    position: fixed;
    inset: 0;
    background: rgba(11, 13, 23, 0.97);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.age-overlay.dismissed {
    display: none;
}

.age-box {
    background: linear-gradient(145deg, var(--space-mid), var(--space-dark));
    border: 2px solid var(--nebula);
    border-radius: 20px;
    padding: 2.5rem;
    max-width: 440px;
    margin: 1rem;
    text-align: center;
}

.age-box h2 {
    color: var(--cosmic);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.age-box p {
    color: rgba(241, 245, 249, 0.8);
    margin-bottom: 1.5rem;
}

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

.btn-launch {
    background: linear-gradient(135deg, var(--star), var(--nebula));
    color: var(--white);
    border: none;
    padding: 0.9rem 2rem;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s;
}

.btn-abort {
    background: transparent;
    color: var(--cosmic);
    border: 2px solid var(--cosmic);
    padding: 0.9rem 2rem;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 12px;
    cursor: pointer;
}

.btn-launch:hover, .btn-abort:hover {
    transform: scale(1.03);
}

/* Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--space-dark);
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s;
    }

    .nav-links.open {
        max-height: 300px;
        padding: 1rem;
    }

    .nav-links a {
        display: block;
        padding: 0.9rem;
        text-align: center;
    }

    .hero {
        padding: 7rem 1.5rem 3rem;
    }

    .portal-frame iframe {
        height: 400px;
    }

    .feature-cards {
        grid-template-columns: 1fr;
    }
}