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

:root {
    --ocean-blue: #0ea5e9;
    --deep-sea: #0369a1;
    --aqua: #06b6d4;
    --wave-teal: #14b8a6;
    --navy: #1e3a8a;
    --light-blue: #e0f2fe;
    --white: #ffffff;
    --light-gray: #f1f5f9;
    --dark-gray: #475569;
    --deep-navy: #0c1e3d;
}

body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(180deg, var(--deep-navy) 0%, #1a3654 50%, var(--navy) 100%);
    color: var(--white);
    line-height: 1.6;
    min-height: 100vh;
}

/* Age Verification Overlay */
.age-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(12, 30, 61, 0.98);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

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

.age-card {
    background: linear-gradient(135deg, var(--navy), var(--deep-sea));
    padding: 3rem;
    border-radius: 25px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(14, 165, 233, 0.4);
    border: 3px solid var(--ocean-blue);
}

.wave-icon {
    margin-bottom: 1.5rem;
}

.age-card h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 3rem;
    color: var(--aqua);
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.age-message {
    font-size: 1.2rem;
    color: var(--light-blue);
    margin-bottom: 0.5rem;
}

.age-requirement {
    font-size: 1rem;
    color: var(--light-gray);
    margin-bottom: 2rem;
}

.age-actions {
    display: flex;
    gap: 1rem;
}

.age-button {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Roboto', sans-serif;
}

.age-button.accept {
    background: linear-gradient(135deg, var(--ocean-blue), var(--wave-teal));
    color: white;
}

.age-button.accept:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(14, 165, 233, 0.5);
}

.age-button.decline {
    background: #64748b;
    color: white;
}

.age-button.decline:hover {
    background: #94a3b8;
}

/* Header */
.main-header {
    background: linear-gradient(90deg, var(--deep-navy), var(--navy));
    padding: 1.2rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border-bottom: 3px solid var(--ocean-blue);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.site-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--ocean-blue), var(--aqua));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 3px;
}

.nav-toggle {
    display: none;
    background: var(--ocean-blue);
    border: none;
    padding: 0.7rem;
    border-radius: 8px;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: white;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.main-nav {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    color: var(--light-blue);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    padding: 0.5rem 1.2rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-link:hover {
    background: rgba(14, 165, 233, 0.2);
    color: var(--aqua);
}

.nav-link.active {
    background: rgba(14, 165, 233, 0.3);
    color: var(--ocean-blue);
    border-bottom: 2px solid var(--aqua);
}

/* Content Area */
.content-area {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

/* Intro Card */
.intro-card {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.15), rgba(6, 182, 212, 0.15));
    padding: 3rem;
    border-radius: 20px;
    margin-bottom: 3rem;
    text-align: center;
    border: 2px solid var(--ocean-blue);
    box-shadow: 0 10px 40px rgba(14, 165, 233, 0.2);
}

.card-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2.8rem;
    color: var(--aqua);
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.intro-text {
    font-size: 1.2rem;
    color: var(--light-blue);
    max-width: 900px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

.intro-highlights {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.highlight-badge {
    background: var(--navy);
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    color: var(--aqua);
    border: 2px solid var(--ocean-blue);
}

/* Section Heading */
.section-heading {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2.5rem;
    text-align: center;
    color: var(--ocean-blue);
    margin-bottom: 2rem;
    letter-spacing: 2px;
}

/* Notices Section */
.notices-section {
    margin: 4rem 0;
}

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

.notice-box {
    background: rgba(30, 58, 138, 0.3);
    padding: 2rem;
    border-radius: 15px;
    border: 2px solid var(--ocean-blue);
    transition: all 0.3s ease;
}

.notice-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(14, 165, 233, 0.3);
}

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

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

.notice-box h3 {
    font-size: 1.5rem;
    color: var(--aqua);
    font-weight: 700;
}

.notice-box p {
    color: var(--light-blue);
    line-height: 1.7;
}

/* Features Section */
.features-section {
    margin: 4rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-tile {
    background: linear-gradient(135deg, var(--navy), var(--deep-sea));
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    border-left: 4px solid var(--wave-teal);
    transition: all 0.3s ease;
}

.feature-tile:hover {
    transform: translateY(-5px);
    border-left-width: 6px;
}

.feature-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.feature-tile h4 {
    font-size: 1.4rem;
    color: var(--aqua);
    margin-bottom: 0.8rem;
    font-weight: 700;
}

.feature-tile p {
    color: var(--light-blue);
    line-height: 1.6;
}

/* Game Showcase */
.game-showcase {
    margin: 4rem 0;
}

.game-intro {
    text-align: center;
    color: var(--light-blue);
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 2rem;
}

.game-wrapper {
    margin: 2rem 0;
}

.game-frame {
    background: var(--deep-navy);
    padding: 2rem;
    border-radius: 20px;
    border: 3px solid var(--ocean-blue);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.5);
}

.game-frame iframe {
    width: 100%;
    height: 700px;
    border-radius: 12px;
}

.game-info-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.info-item {
    background: rgba(14, 165, 233, 0.1);
    padding: 1rem;
    border-radius: 10px;
    border-left: 3px solid var(--aqua);
    color: var(--light-blue);
}

.info-item strong {
    color: var(--aqua);
}

/* Page Title Card */
.page-title-card {
    background: linear-gradient(135deg, var(--navy), var(--deep-sea));
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    margin-bottom: 3rem;
    border: 2px solid var(--ocean-blue);
}

.page-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 3.5rem;
    color: var(--aqua);
    margin-bottom: 0.5rem;
    letter-spacing: 3px;
}

.page-subtitle {
    font-size: 1.3rem;
    color: var(--light-blue);
}

/* Instructions */
.instructions-card {
    background: rgba(30, 58, 138, 0.2);
    padding: 3rem;
    border-radius: 20px;
    margin-bottom: 3rem;
    border: 2px solid var(--ocean-blue);
}

.instructions-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.instruction-item {
    background: var(--navy);
    padding: 2rem;
    border-radius: 15px;
    border-top: 3px solid var(--wave-teal);
}

.instruction-number {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 3rem;
    color: var(--ocean-blue);
    opacity: 0.4;
    margin-bottom: 1rem;
}

.instruction-item h3 {
    font-size: 1.4rem;
    color: var(--aqua);
    margin-bottom: 1rem;
    font-weight: 700;
}

.instruction-item p {
    color: var(--light-blue);
    line-height: 1.7;
}

/* Tips Section */
.tips-section {
    margin: 4rem 0;
}

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

.tip-card {
    background: linear-gradient(135deg, var(--navy), var(--deep-sea));
    padding: 2rem;
    border-radius: 15px;
    border-left: 4px solid var(--aqua);
}

.tip-card h4 {
    font-size: 1.3rem;
    color: var(--wave-teal);
    margin-bottom: 1rem;
    font-weight: 700;
}

.tip-card p {
    color: var(--light-blue);
    line-height: 1.6;
}

/* Reminder Card */
.reminder-card {
    background: rgba(14, 165, 233, 0.15);
    padding: 2.5rem;
    border-radius: 15px;
    border: 2px solid var(--ocean-blue);
    text-align: center;
    margin: 3rem 0;
}

.reminder-card h3 {
    font-size: 2rem;
    color: var(--aqua);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.reminder-card p {
    color: var(--light-blue);
    font-size: 1.1rem;
    line-height: 1.8;
    margin: 1rem 0;
}

/* About Section */
.about-section {
    margin: 4rem 0;
}

.about-content {
    background: rgba(30, 58, 138, 0.2);
    padding: 3rem;
    border-radius: 20px;
    border: 2px solid var(--ocean-blue);
}

.about-text p {
    color: var(--light-blue);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* CTA Section */
.cta-section {
    margin: 4rem 0;
}

.cta-box {
    background: linear-gradient(135deg, var(--ocean-blue), var(--wave-teal));
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 15px 50px rgba(14, 165, 233, 0.4);
}

.cta-box h2 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2.5rem;
    color: white;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.cta-box p {
    color: var(--light-blue);
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-btn {
    display: inline-block;
    padding: 1.2rem 3rem;
    background: white;
    color: var(--ocean-blue);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

/* Responsible Section */
.responsible-section {
    margin: 4rem 0;
}

.responsible-content {
    background: rgba(30, 58, 138, 0.2);
    padding: 2.5rem;
    border-radius: 15px;
    border: 2px solid var(--wave-teal);
    text-align: center;
}

.responsible-content p {
    color: var(--light-blue);
    font-size: 1.1rem;
    line-height: 1.8;
    margin: 1rem 0;
}

/* Legal Container */
.legal-container {
    max-width: 1000px;
    margin: 0 auto;
}

.terms-article {
    background: rgba(30, 58, 138, 0.1);
    padding: 2rem;
    border-radius: 20px;
}

.terms-section {
    background: var(--navy);
    padding: 2.5rem;
    margin-bottom: 2rem;
    border-radius: 15px;
    border-left: 4px solid var(--ocean-blue);
}

.terms-section h2 {
    font-size: 2rem;
    color: var(--aqua);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.terms-section h3 {
    font-size: 1.5rem;
    color: var(--wave-teal);
    margin: 1.5rem 0 1rem;
    font-weight: 600;
}

.terms-section p {
    color: var(--light-blue);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.terms-section ul {
    color: var(--light-blue);
    margin: 1rem 0 1.5rem 2rem;
}

.terms-section li {
    margin: 0.5rem 0;
    line-height: 1.7;
}

.warning-section {
    border: 2px solid var(--ocean-blue);
    background: linear-gradient(135deg, var(--navy), var(--deep-sea));
}

.support-list {
    list-style: none;
    margin: 1rem 0;
    padding: 0;
}

.support-list li {
    background: rgba(14, 165, 233, 0.1);
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 10px;
    border-left: 3px solid var(--aqua);
}

.support-list a {
    color: var(--aqua);
    text-decoration: none;
}

.support-list a:hover {
    text-decoration: underline;
}

.final-statement {
    background: rgba(14, 165, 233, 0.2);
    padding: 1.5rem;
    border-radius: 10px;
    border: 2px solid var(--ocean-blue);
    text-align: center;
    margin: 2rem 0;
}

/* Footer */
.main-footer {
    background: var(--deep-navy);
    padding: 3rem 0 1.5rem;
    margin-top: 5rem;
    border-top: 3px solid var(--ocean-blue);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.4rem;
    color: var(--aqua);
    margin-bottom: 1rem;
    font-weight: 700;
}

.footer-section p {
    color: var(--light-blue);
    margin-bottom: 1rem;
}

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

.footer-links li {
    margin: 0.7rem 0;
}

.footer-links a {
    color: var(--light-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--aqua);
}

.footer-legal {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--navy);
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 2rem;
    padding-right: 2rem;
}

.footer-legal p {
    color: var(--light-gray);
    font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .main-nav {
        position: fixed;
        top: 85px;
        left: 0;
        width: 100%;
        background: var(--deep-navy);
        flex-direction: column;
        padding: 2rem;
        gap: 0;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        border-top: 3px solid var(--ocean-blue);
    }

    .main-nav.active {
        transform: translateX(0);
    }

    .nav-toggle {
        display: flex;
    }

    .game-frame iframe {
        height: 500px;
    }
}

@media (max-width: 640px) {
    .site-title {
        font-size: 2rem;
    }

    .card-title, .page-title {
        font-size: 2rem;
    }

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

    .intro-card {
        padding: 2rem 1.5rem;
    }

    .intro-highlights {
        flex-direction: column;
    }

    .game-frame {
        padding: 1rem;
    }

    .game-frame iframe {
        height: 350px;
    }

    .terms-section {
        padding: 1.5rem;
    }

    .age-card {
        padding: 2rem 1.5rem;
    }

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