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

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

:root {
    --teal: #14B8A6;
    --teal-dark: #0D9488;
    --teal-light: #2DD4BF;
    --dark-bg: #0A1214;
    --card: #111B1E;
    --light: #F0FDFA;
    --muted: #5EEAD4;
}

body {
    font-family: 'Open Sans', sans-serif;
    background: var(--dark-bg);
    color: var(--light);
    line-height: 1.75;
    background-image: radial-gradient(ellipse at 50% 100%, rgba(20, 184, 166, 0.06) 0%, transparent 60%);
}

/* Header */
header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(10, 18, 20, 0.92);
    backdrop-filter: blur(12px);
    padding: 16px 0;
    border-bottom: 1px solid rgba(20, 184, 166, 0.2);
}

.header-container {
    max-width: 1460px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-shape {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--teal), var(--teal-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Russo One', sans-serif;
    font-size: 20px;
    color: var(--dark-bg);
}

.logo-text {
    font-family: 'Russo One', sans-serif;
    font-size: 1.55rem;
    color: var(--teal-light);
    letter-spacing: 2px;
}

nav {
    display: flex;
    gap: 40px;
}

nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

nav a:hover {
    color: var(--teal-light);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 6px;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--teal);
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero */
.hero {
    padding: 175px 30px 120px;
    text-align: center;
}

.hero h1 {
    font-family: 'Russo One', sans-serif;
    font-size: 4rem;
    margin-bottom: 26px;
    color: var(--light);
}

.hero h1 span {
    color: var(--teal-light);
}

.hero .lead {
    font-size: 1.18rem;
    color: var(--muted);
    max-width: 730px;
    margin: 0 auto 48px;
    font-weight: 400;
}

.cta-btn {
    display: inline-block;
    padding: 17px 52px;
    background: linear-gradient(135deg, var(--teal), var(--teal-dark));
    color: var(--dark-bg);
    text-decoration: none;
    font-family: 'Russo One', sans-serif;
    font-size: 1rem;
    letter-spacing: 2px;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 35px rgba(20, 184, 166, 0.3);
}

.cta-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 45px rgba(20, 184, 166, 0.4);
}

/* Info Cards */
.info-cards {
    padding: 75px 30px;
    max-width: 1340px;
    margin: 0 auto;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.card {
    background: var(--card);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(20, 184, 166, 0.15);
    transition: all 0.3s ease;
}

.card:hover {
    border-color: var(--teal);
    transform: translateY(-6px);
}

.card .emoji {
    font-size: 3rem;
    margin-bottom: 20px;
}

.card h3 {
    font-family: 'Russo One', sans-serif;
    font-size: 1.15rem;
    color: var(--teal-light);
    margin-bottom: 12px;
}

.card p {
    color: var(--muted);
    font-size: 0.94rem;
}

/* Game */
.game-area {
    padding: 95px 30px;
}

.game-area h2 {
    font-family: 'Russo One', sans-serif;
    font-size: 2.5rem;
    text-align: center;
    color: var(--teal-light);
    margin-bottom: 48px;
}

.game-box {
    max-width: 1160px;
    margin: 0 auto;
    background: var(--card);
    padding: 18px;
    border-radius: 24px;
    border: 2px solid var(--teal-dark);
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.4);
}

.game-box iframe {
    width: 100%;
    height: 655px;
    border: none;
    border-radius: 14px;
}

/* Features */
.features {
    padding: 95px 30px;
    max-width: 1240px;
    margin: 0 auto;
}

.features h2 {
    font-family: 'Russo One', sans-serif;
    font-size: 2.2rem;
    text-align: center;
    color: var(--light);
    margin-bottom: 52px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.feature {
    background: var(--card);
    padding: 28px 22px;
    border-radius: 16px;
    text-align: center;
    border-bottom: 3px solid var(--teal);
}

.feature h4 {
    font-family: 'Russo One', sans-serif;
    font-size: 1rem;
    color: var(--teal-light);
    margin-bottom: 10px;
}

.feature p {
    color: var(--muted);
    font-size: 0.88rem;
}

/* Footer */
footer {
    background: rgba(5, 10, 12, 0.95);
    border-top: 1px solid rgba(20, 184, 166, 0.15);
    padding: 55px 30px 35px;
    margin-top: 85px;
}

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

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 45px;
    margin-bottom: 38px;
    flex-wrap: wrap;
}

.footer-nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.3s ease;
}

.footer-nav a:hover {
    color: var(--teal-light);
}

.help-links {
    padding-top: 30px;
    border-top: 1px solid rgba(20, 184, 166, 0.1);
}

.help-links p {
    color: var(--muted);
    font-size: 0.84rem;
    margin-bottom: 14px;
}

.help-links a {
    color: var(--teal);
    text-decoration: none;
    margin: 0 16px;
    font-size: 0.84rem;
}

.help-links a:hover {
    text-decoration: underline;
}

.copy {
    margin-top: 32px;
    color: rgba(94, 234, 212, 0.35);
    font-size: 0.78rem;
}

/* Age Modal */
.age-modal {
    position: fixed;
    inset: 0;
    background: rgba(10, 18, 20, 0.98);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

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

.age-box {
    background: var(--card);
    border: 2px solid var(--teal);
    padding: 52px 48px;
    border-radius: 24px;
    text-align: center;
    max-width: 500px;
    margin: 22px;
    box-shadow: 0 0 60px rgba(20, 184, 166, 0.15);
}

.age-box h2 {
    font-family: 'Russo One', sans-serif;
    font-size: 1.8rem;
    color: var(--teal-light);
    margin-bottom: 20px;
}

.age-box p {
    color: var(--muted);
    margin-bottom: 32px;
}

.age-buttons {
    display: flex;
    gap: 18px;
    justify-content: center;
}

.btn-age-yes, .btn-age-no {
    padding: 14px 40px;
    border: none;
    font-family: 'Russo One', sans-serif;
    font-size: 0.95rem;
    cursor: pointer;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.btn-age-yes {
    background: linear-gradient(135deg, var(--teal), var(--teal-dark));
    color: var(--dark-bg);
}

.btn-age-no {
    background: transparent;
    border: 2px solid var(--muted);
    color: var(--muted);
}

.btn-age-yes:hover, .btn-age-no:hover {
    transform: scale(1.04);
}

/* Page Content */
.page-content {
    padding: 148px 30px 95px;
    max-width: 970px;
    margin: 0 auto;
}

.page-content h1 {
    font-family: 'Russo One', sans-serif;
    font-size: 2.6rem;
    color: var(--teal-light);
    margin-bottom: 42px;
}

.page-content h2 {
    font-family: 'Russo One', sans-serif;
    font-size: 1.35rem;
    color: var(--teal);
    margin: 38px 0 15px;
}

.page-content p {
    color: var(--muted);
    margin-bottom: 17px;
}

.page-content ul {
    color: var(--muted);
    margin: 0 0 22px 25px;
}

.page-content li {
    margin-bottom: 10px;
}

/* Responsive */
@media (max-width: 1050px) {
    .cards-grid {
        grid-template-columns: 1fr;
        max-width: 470px;
        margin: 0 auto;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    nav {
        position: fixed;
        top: 74px;
        left: 0;
        right: 0;
        background: rgba(10, 18, 20, 0.98);
        flex-direction: column;
        padding: 28px;
        gap: 20px;
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        border-bottom: 1px solid rgba(20, 184, 166, 0.2);
    }
    
    nav.active {
        transform: translateY(0);
    }
    
    .hero h1 {
        font-size: 2.7rem;
    }
    
    .hero .lead {
        font-size: 1.02rem;
    }
    
    .game-box iframe {
        height: 450px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-nav {
        flex-direction: column;
        gap: 14px;
    }
    
    .age-buttons {
        flex-direction: column;
    }
}