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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(to bottom, #f8f9fa, #e9ecef);
    color: #212529;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 999;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: #ff6b35;
}

.brand-icon {
    font-size: 2rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
    padding: 5px;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background: #ff6b35;
    border-radius: 2px;
    transition: 0.3s;
}

.main-nav {
    display: flex;
    gap: 2rem;
}

.nav-item {
    color: #495057;
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 0;
    transition: color 0.3s;
    position: relative;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #ff6b35, #f7931e);
    transition: width 0.3s;
}

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

.nav-item:hover,
.nav-item.active {
    color: #ff6b35;
}

/* Age Overlay */
.age-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

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

.age-box {
    background: #fff;
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    max-width: 500px;
    margin: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.age-emoji {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.age-box h2 {
    color: #212529;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.age-box p {
    color: #6c757d;
    margin-bottom: 1rem;
}

.age-disclaimer {
    font-size: 0.9rem;
    color: #adb5bd;
}

.age-btns {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.age-btns button {
    flex: 1;
    padding: 1rem 2rem;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-accept {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: #fff;
}

.btn-accept:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.4);
}

.btn-reject {
    background: #e9ecef;
    color: #6c757d;
}

.btn-reject:hover {
    background: #dee2e6;
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
}

/* Hero Area */
.hero-area {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    padding: 4rem 2rem;
    text-align: center;
    color: #fff;
    margin-bottom: 3rem;
}

.hero-inner {
    max-width: 900px;
    margin: 0 auto;
}

.main-heading {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.main-subheading {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-features {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.feature-pill {
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    padding: 0.7rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    border: 2px solid rgba(255,255,255,0.3);
}

/* Intro Area */
.intro-area {
    margin: 3rem 0;
}

.intro-card {
    background: #fff;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #212529;
    margin-bottom: 1.5rem;
    text-align: center;
}

.intro-description {
    font-size: 1.1rem;
    color: #495057;
    line-height: 1.8;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.section-subtitle {
    text-align: center;
    color: #6c757d;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Highlights Area */
.highlights-area {
    margin: 3rem 0;
}

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

.highlight-box {
    background: #fff;
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.highlight-box:hover {
    transform: translateY(-10px);
}

.highlight-emoji {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.highlight-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ff6b35;
    margin-bottom: 1rem;
}

.highlight-text {
    color: #495057;
    line-height: 1.7;
}

/* Warning Area */
.warning-area {
    margin: 3rem 0;
}

.warning-card {
    background: linear-gradient(135deg, #fff5f5 0%, #ffe8e8 100%);
    padding: 2.5rem;
    border-radius: 15px;
    border-left: 6px solid #dc3545;
}

.warning-heading {
    font-size: 1.8rem;
    color: #dc3545;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.warning-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.warning-point {
    background: #fff;
    padding: 1.2rem;
    border-radius: 10px;
    color: #495057;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.warning-point strong {
    color: #dc3545;
}

/* Featured Game Area */
.featured-game-area {
    margin: 3rem 0;
}

.game-display {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    margin: 2rem 0;
}

.game-iframe {
    width: 100%;
    height: 600px;
    border: none;
    display: block;
}

.game-tips {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    margin-top: 2rem;
}

.tip-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1rem 0;
    color: #495057;
}

.tip-icon {
    font-size: 2rem;
}

.tip-text strong {
    color: #ff6b35;
}

/* Advantages Area */
.advantages-area {
    margin: 3rem 0;
}

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

.advantage-item {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(180deg, #ff6b35, #f7931e);
}

.advantage-number {
    font-size: 3rem;
    font-weight: 800;
    color: #f8f9fa;
    margin-bottom: 1rem;
}

.advantage-heading {
    font-size: 1.4rem;
    font-weight: 700;
    color: #ff6b35;
    margin-bottom: 0.8rem;
}

.advantage-description {
    color: #495057;
    line-height: 1.7;
}

/* Page Hero */
.page-hero {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    padding: 3rem 2rem;
    text-align: center;
    color: #fff;
    margin-bottom: 2rem;
}

.page-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.page-description {
    font-size: 1.2rem;
    opacity: 0.95;
}

.doc-updated {
    font-size: 0.95rem;
    opacity: 0.8;
    font-style: italic;
}

/* Play Page */
.play-reminder {
    margin: 2rem 0;
}

.reminder-banner {
    background: linear-gradient(135deg, #fff5e6 0%, #ffe8cc 100%);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    border: 2px solid #f7931e;
}

.reminder-banner p {
    color: #495057;
    margin: 0;
}

.reminder-banner strong {
    color: #ff6b35;
}

.game-play-area {
    margin: 2rem 0;
}

.game-info-area {
    margin: 2rem 0;
}

.info-panel {
    background: #fff;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.info-heading {
    font-size: 2rem;
    font-weight: 700;
    color: #212529;
    margin-bottom: 2rem;
    text-align: center;
}

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

.info-section h4 {
    font-size: 1.3rem;
    color: #ff6b35;
    margin-bottom: 1rem;
}

.info-subtitle {
    font-size: 1.3rem;
    color: #ff6b35;
    margin-bottom: 1rem;
}

.info-list {
    list-style: none;
    padding: 0;
}

.info-list li {
    padding: 0.6rem 0 0.6rem 2rem;
    color: #495057;
    position: relative;
}

.info-list li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: #f7931e;
}

.gaming-reminder {
    margin: 2rem 0;
}

.reminder-panel {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    padding: 2.5rem;
    border-radius: 15px;
    border-left: 6px solid #2196f3;
}

.reminder-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1565c0;
    margin-bottom: 1rem;
}

.reminder-content {
    color: #495057;
    line-height: 1.8;
    font-size: 1.05rem;
}

/* Document Section */
.document-section {
    margin: 2rem 0;
}

.document-content {
    background: #fff;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.document-content h2 {
    font-size: 1.8rem;
    color: #212529;
    margin: 2rem 0 1rem;
    padding-top: 1rem;
}

.document-content h3 {
    font-size: 1.4rem;
    color: #ff6b35;
    margin: 1.5rem 0 1rem;
}

.document-content p {
    color: #495057;
    margin: 1rem 0;
    line-height: 1.8;
}

.document-content ul {
    margin: 1rem 0;
    padding-left: 2rem;
}

.document-content ul li {
    color: #495057;
    margin: 0.5rem 0;
    line-height: 1.7;
}

.document-notice {
    background: #fff3cd;
    border: 2px solid #ffc107;
    padding: 2rem;
    border-radius: 10px;
    margin: 2rem 0;
}

.document-notice p {
    color: #856404;
    margin: 0;
    font-weight: 600;
}

.critical-notice {
    background: #f8d7da;
    border: 3px solid #dc3545;
    padding: 1.5rem;
    border-radius: 10px;
    margin: 1.5rem 0;
}

.critical-notice p {
    color: #721c24;
    margin: 0;
    font-weight: 600;
}

/* Footer */
.site-footer {
    background: #212529;
    color: #adb5bd;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.footer-heading {
    color: #ff6b35;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.footer-text {
    line-height: 1.7;
    color: #adb5bd;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin: 0.5rem 0;
}

.footer-links a {
    color: #adb5bd;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #ff6b35;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #495057;
    font-size: 0.9rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 250px;
        height: calc(100vh - 70px);
        background: #fff;
        flex-direction: column;
        padding: 2rem;
        box-shadow: -2px 0 10px rgba(0,0,0,0.1);
        transition: right 0.3s;
    }

    .main-nav.active {
        right: 0;
    }

    .nav-item {
        padding: 1rem 0;
        border-bottom: 1px solid #e9ecef;
    }

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

    .main-subheading {
        font-size: 1.2rem;
    }

    .hero-features {
        flex-direction: column;
        align-items: center;
    }

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

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

    .game-iframe {
        height: 400px;
    }

    .age-box {
        padding: 2rem;
    }

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

    .document-content {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .main-heading {
        font-size: 1.5rem;
    }

    .hero-area {
        padding: 2rem 1rem;
    }

    .game-iframe {
        height: 300px;
    }

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