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

:root {
    --gold: #f59e0b;
    --amber: #d97706;
    --bronze: #92400e;
    --light-bg: #fffbeb;
    --white: #ffffff;
    --dark-text: #1c1917;
    --medium-text: #57534e;
    --border-light: #fde68a;
    --shadow: rgba(217, 119, 6, 0.15);
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--light-bg);
    color: var(--dark-text);
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
}

.top-header {
    background: linear-gradient(135deg, var(--white), var(--light-bg));
    border-bottom: 3px solid var(--gold);
    box-shadow: 0 4px 12px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-icon {
    width: 50px;
    height: 50px;
}

.brand-name {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 900;
    color: var(--gold);
}

.desktop-nav {
    display: flex;
    gap: 2.5rem;
}

.nav-item {
    font-weight: 600;
    color: var(--medium-text);
    text-decoration: none;
    font-size: 1.05rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gold);
    transition: width 0.3s ease;
}

.nav-item:hover::after,
.nav-item.active::after {
    width: 100%;
}

.nav-item:hover,
.nav-item.active {
    color: var(--gold);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.bar {
    width: 30px;
    height: 3px;
    background: var(--gold);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-nav {
    display: none;
    background: var(--white);
    border-top: 2px solid var(--border-light);
    padding: 1rem 0;
}

.mobile-nav.open {
    display: block;
}

.mobile-nav-item {
    display: block;
    padding: 1rem 2rem;
    color: var(--medium-text);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.mobile-nav-item:hover {
    background: var(--light-bg);
    color: var(--gold);
}

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

.hero-banner {
    background: linear-gradient(135deg, var(--gold), var(--amber));
    border-radius: 24px;
    padding: 4rem 3rem;
    margin-bottom: 4rem;
    text-align: center;
    box-shadow: 0 8px 24px var(--shadow);
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--white);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-text {
    font-size: 1.4rem;
    color: var(--white);
    max-width: 900px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.feature-badge {
    background: var(--white);
    color: var(--amber);
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.section-heading {
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--bronze);
    margin-bottom: 2rem;
    text-align: center;
}

.section-intro {
    font-size: 1.2rem;
    color: var(--medium-text);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.important-notices {
    margin-bottom: 4rem;
}

.notice-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.notice-box {
    background: var(--white);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 4px 16px var(--shadow);
    border-left: 6px solid;
}

.gold-border {
    border-left-color: var(--gold);
}

.amber-border {
    border-left-color: var(--amber);
}

.bronze-border {
    border-left-color: var(--bronze);
}

.notice-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.notice-emoji {
    font-size: 2.5rem;
}

.notice-box h3 {
    font-size: 1.6rem;
    color: var(--dark-text);
}

.notice-box p {
    font-size: 1.05rem;
    color: var(--medium-text);
    line-height: 1.8;
}

.game-showcase {
    background: var(--white);
    border-radius: 24px;
    padding: 3rem;
    margin-bottom: 4rem;
    box-shadow: 0 6px 20px var(--shadow);
    border: 2px solid var(--border-light);
}

.game-display {
    background: #f5f5f4;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 2rem;
    border: 3px solid var(--gold);
}

.game-iframe {
    width: 100%;
    height: 650px;
    border: none;
    display: block;
}

.game-details {
    background: var(--light-bg);
    border-radius: 12px;
    padding: 2rem;
    border: 2px solid var(--border-light);
}

.detail-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.detail-list li {
    font-size: 1.05rem;
    color: var(--dark-text);
    padding: 0.75rem;
    background: var(--white);
    border-radius: 8px;
    border-left: 4px solid var(--gold);
}

.detail-list strong {
    color: var(--amber);
}

.advantages {
    margin-bottom: 4rem;
}

.advantages-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.advantage-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 16px var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 4px solid var(--gold);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px var(--shadow);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.advantage-card h3 {
    font-size: 1.6rem;
    color: var(--dark-text);
    margin-bottom: 1rem;
}

.advantage-card p {
    font-size: 1.05rem;
    color: var(--medium-text);
    line-height: 1.8;
}

.about-platform {
    background: linear-gradient(135deg, var(--white), var(--light-bg));
    border-radius: 24px;
    padding: 3.5rem;
    margin-bottom: 4rem;
    border: 3px solid var(--gold);
    box-shadow: 0 6px 20px var(--shadow);
}

.about-content p {
    font-size: 1.15rem;
    line-height: 2;
    color: var(--dark-text);
    margin-bottom: 1.5rem;
}

.site-footer {
    background: linear-gradient(135deg, var(--bronze), var(--amber));
    color: var(--white);
    padding: 3rem;
    border-radius: 24px;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.footer-column h4 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--light-bg);
}

.footer-column p {
    line-height: 1.8;
    font-size: 1.05rem;
}

.support-links {
    list-style: none;
}

.support-links li {
    margin-bottom: 1rem;
}

.support-links a {
    color: var(--white);
    text-decoration: none;
    font-size: 1.05rem;
    transition: color 0.3s ease;
    display: inline-block;
}

.support-links a:hover {
    color: var(--light-bg);
    transform: translateX(5px);
}

.age-verification-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(28, 25, 23, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(8px);
}

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

.modal-box {
    background: linear-gradient(135deg, var(--white), var(--light-bg));
    border-radius: 24px;
    padding: 3.5rem;
    max-width: 550px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    border: 4px solid var(--gold);
}

.modal-icon {
    font-size: 4.5rem;
    margin-bottom: 2rem;
}

.modal-box h2 {
    font-size: 2.5rem;
    color: var(--bronze);
    margin-bottom: 1.5rem;
}

.modal-box > p {
    font-size: 1.2rem;
    color: var(--medium-text);
    margin-bottom: 2rem;
}

.age-notice {
    background: var(--light-bg);
    border: 2px solid var(--gold);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2.5rem;
}

.age-notice p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--bronze);
    margin-bottom: 0.5rem;
}

.age-notice p:last-child {
    margin-bottom: 0;
}

.modal-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.btn-confirm,
.btn-decline {
    padding: 1.2rem 2.5rem;
    font-size: 1.2rem;
    font-weight: 700;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    transition: all 0.3s ease;
}

.btn-confirm {
    background: linear-gradient(135deg, var(--gold), var(--amber));
    color: var(--white);
}

.btn-confirm:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px var(--shadow);
}

.btn-decline {
    background: var(--medium-text);
    color: var(--white);
}

.btn-decline:hover {
    background: #dc2626;
}

@media (max-width: 768px) {
    .desktop-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-text {
        font-size: 1.1rem;
    }

    .section-heading {
        font-size: 2rem;
    }

    .game-iframe {
        height: 450px;
    }

    .main-container {
        padding: 2rem 1rem;
    }

    .hero-banner {
        padding: 2.5rem 1.5rem;
    }

    .modal-box {
        margin: 1rem;
        padding: 2rem;
    }

    .modal-actions {
        flex-direction: column;
    }

    .detail-list {
        grid-template-columns: 1fr;
    }
}