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

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

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(to bottom right, #d4a574 0%, #8b6f47 50%, #5c4a33 100%);
    color: #2d2419;
    min-height: 100vh;
    line-height: 1.8;
}

header {
    background: linear-gradient(135deg, #f4a460 0%, #cd853f 100%);
    padding: 1.8rem 2.5rem;
    box-shadow: 0 4px 20px rgba(139, 111, 71, 0.4);
    border-bottom: 3px solid #8b6f47;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Poppins', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
    text-decoration: none;
    letter-spacing: 1px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo::before {
    content: '🪨';
    font-size: 2rem;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 1.8rem;
}

nav a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
}

nav a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

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

.hamburger span {
    width: 30px;
    height: 3px;
    background: #fff;
    transition: all 0.3s ease;
    border-radius: 2px;
}

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.hero-section {
    text-align: center;
    padding: 4rem 2rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 30px;
    margin-bottom: 3rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    border: 3px solid #cd853f;
}

.hero-section h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: #8b6f47;
    font-weight: 800;
    text-shadow: 2px 2px 4px rgba(139, 111, 71, 0.2);
}

.hero-section p {
    font-size: 1.3rem;
    color: #5c4a33;
    font-weight: 400;
}

.asymmetric-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.content-card {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    border-left: 5px solid #cd853f;
    transition: all 0.3s ease;
}

.content-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(139, 111, 71, 0.3);
}

.content-card h2 {
    color: #8b6f47;
    margin-bottom: 1.2rem;
    font-size: 2rem;
    font-weight: 700;
}

.content-card p {
    margin-bottom: 1rem;
    color: #3d3026;
    font-size: 1.05rem;
}

.card-small {
    grid-column: span 4;
}

.card-medium {
    grid-column: span 6;
}

.card-large {
    grid-column: span 8;
}

.card-full {
    grid-column: span 12;
}

.notice-box {
    background: linear-gradient(135deg, #ffe4b5 0%, #ffd699 100%);
    border: 3px solid #cd853f;
    padding: 2rem;
    margin: 2rem 0;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(139, 111, 71, 0.2);
}

.notice-box h3 {
    color: #8b6f47;
    margin-bottom: 1rem;
    font-size: 1.8rem;
    font-weight: 700;
}

.notice-box ul {
    margin-left: 2rem;
}

.notice-box li {
    margin-bottom: 0.8rem;
    color: #2d2419;
    font-weight: 500;
}

.game-container {
    text-align: center;
    margin: 3rem 0;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 25px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.2);
    border: 3px solid #cd853f;
}

.game-container h2 {
    color: #8b6f47;
    margin-bottom: 1.5rem;
    font-size: 2.8rem;
    font-weight: 800;
}

.game-container p {
    color: #5c4a33;
    margin-bottom: 2rem;
    font-size: 1.2rem;
}

.game-container iframe {
    max-width: 100%;
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.3);
}

footer {
    background: linear-gradient(135deg, #8b6f47 0%, #5c4a33 100%);
    padding: 2.5rem;
    text-align: center;
    margin-top: 4rem;
    border-top: 3px solid #cd853f;
    box-shadow: 0 -6px 30px rgba(139, 111, 71, 0.3);
    color: #fff;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2.5rem;
    margin-bottom: 1.5rem;
}

.footer-links a {
    color: #ffd699;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: #fff;
    transform: translateY(-3px);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.age-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(45, 36, 25, 0.95);
    z-index: 10000;
    justify-content: center;
    align-items: center;
}

.age-modal.active {
    display: flex;
}

.age-modal-content {
    background: linear-gradient(135deg, #fff 0%, #ffd699 100%);
    padding: 4rem;
    border-radius: 30px;
    text-align: center;
    max-width: 550px;
    border: 5px solid #cd853f;
    box-shadow: 0 0 80px rgba(205, 133, 63, 0.8);
}

.age-modal-content h2 {
    color: #8b6f47;
    margin-bottom: 2rem;
    font-size: 2.5rem;
    font-weight: 800;
}

.age-modal-content p {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    color: #2d2419;
}

.age-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.age-btn {
    padding: 1.3rem 3.5rem;
    font-size: 1.2rem;
    border: 3px solid #8b6f47;
    border-radius: 25px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    transition: all 0.3s ease;
}

.age-btn.yes {
    background: linear-gradient(135deg, #f4a460 0%, #cd853f 100%);
    color: white;
}

.age-btn.yes:hover {
    transform: scale(1.08);
    box-shadow: 0 0 40px rgba(205, 133, 63, 0.8);
}

.age-btn.no {
    background: linear-gradient(135deg, #888 0%, #555 100%);
    color: white;
}

.age-btn.no:hover {
    transform: scale(1.08);
    box-shadow: 0 0 40px rgba(136, 136, 136, 0.8);
}

@media (max-width: 968px) {
    .asymmetric-grid {
        grid-template-columns: 1fr;
    }

    .card-small,
    .card-medium,
    .card-large,
    .card-full {
        grid-column: span 1;
    }
}

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

    nav ul {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 75%;
        background: linear-gradient(135deg, #8b6f47 0%, #5c4a33 100%);
        flex-direction: column;
        padding: 5rem 2rem;
        transition: right 0.3s ease;
        border-left: 3px solid #cd853f;
    }

    nav ul.active {
        right: 0;
    }

    .hero-section h1 {
        font-size: 2.5rem;
    }

    .age-modal-content {
        margin: 1rem;
        padding: 2.5rem;
    }

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