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

body {
    font-family: 'Montserrat', sans-serif;
    background: #f8f9fa;
    color: #2c3e50;
    line-height: 1.6;
}

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

/* Header */
.main-header {
    background: linear-gradient(135deg, #16A085 0%, #0E6F5C 100%);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 999;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.2rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-text {
    font-size: 2rem;
    font-weight: 800;
    color: white;
    letter-spacing: -1px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 30px;
    height: 3px;
    background: white;
    transition: 0.3s;
}

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

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

.nav-item:hover {
    opacity: 0.8;
}

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

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

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #16A085 0%, #1ABC9C 50%, #0E6F5C 100%);
    padding: 5rem 2rem;
    text-align: center;
    color: white;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-text {
    font-size: 1.5rem;
    font-weight: 300;
}

/* Key Points */
.key-points {
    padding: 4rem 0;
}

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

.point-card {
    padding: 3rem 2rem;
    border-radius: 20px;
    color: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.point-card:hover {
    transform: translateY(-10px);
}

.point-card.green {
    background: linear-gradient(135deg, #16A085 0%, #1ABC9C 100%);
}

.point-card.teal {
    background: linear-gradient(135deg, #1ABC9C 0%, #48C9B0 100%);
}

.point-card.dark-green {
    background: linear-gradient(135deg, #0E6F5C 0%, #16A085 100%);
}

.point-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.point-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1.2rem;
    font-weight: 700;
}

.point-card p {
    font-size: 1.1rem;
    line-height: 1.7;
}

/* Intro Section */
.intro-section {
    padding: 4rem 0;
    background: white;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.intro-text h2 {
    color: #16A085;
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.intro-text p {
    font-size: 1.15rem;
    margin-bottom: 1.5rem;
    color: #555;
    line-height: 1.8;
}

.intro-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #E8F6F3 0%, #D5EDE7 100%);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 10px 30px rgba(22, 160, 133, 0.2);
}

/* Game Feature */
.game-feature {
    padding: 4rem 0;
    background: #f8f9fa;
}

.game-feature h2 {
    text-align: center;
    color: #16A085;
    font-size: 2.8rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.game-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
}

.game-wrapper {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.game-wrapper iframe {
    width: 100%;
    height: 600px;
    border: none;
    border-radius: 10px;
}

/* Benefits Section */
.benefits-section {
    padding: 4rem 0;
    background: white;
}

.benefits-section h2 {
    text-align: center;
    color: #16A085;
    font-size: 2.8rem;
    margin-bottom: 3rem;
    font-weight: 700;
}

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

.benefit-box {
    text-align: center;
    padding: 2.5rem 1.5rem;
    border: 3px solid #E8F6F3;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.benefit-box:hover {
    border-color: #16A085;
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(22, 160, 133, 0.15);
}

.benefit-emoji {
    font-size: 3.5rem;
    display: block;
    margin-bottom: 1rem;
}

.benefit-box h4 {
    color: #16A085;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.benefit-box p {
    color: #666;
    font-size: 1.05rem;
}

/* Responsible Section */
.responsible-section {
    padding: 4rem 0;
    background: #E8F6F3;
}

.responsible-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.responsible-content h2 {
    color: #0E6F5C;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.responsible-content p {
    font-size: 1.15rem;
    margin-bottom: 1.5rem;
    color: #555;
    line-height: 1.8;
}

/* Play Page */
.play-hero {
    background: linear-gradient(135deg, #16A085 0%, #1ABC9C 100%);
    padding: 4rem 2rem;
    text-align: center;
    color: white;
}

.play-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

.game-info-section {
    padding: 3rem 0;
    background: white;
}

.game-info-section h2 {
    color: #16A085;
    font-size: 2.3rem;
    margin-bottom: 2rem;
    text-align: center;
}

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

.info-col {
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 15px;
    border-left: 5px solid #16A085;
}

.info-col h3 {
    color: #16A085;
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.play-area {
    padding: 3rem 0;
}

.game-container-play {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.game-container-play iframe {
    width: 100%;
    height: 700px;
    border: none;
    border-radius: 10px;
}

.play-notice {
    background: #E8F6F3;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    border: 3px solid #16A085;
}

.play-notice strong {
    color: #0E6F5C;
}

/* Legal Pages */
.legal-section {
    padding: 4rem 0;
    background: white;
}

.legal-section h1 {
    color: #16A085;
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.legal-section h2 {
    color: #0E6F5C;
    font-size: 1.9rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.legal-section p, .legal-section li {
    font-size: 1.05rem;
    margin-bottom: 1rem;
    color: #555;
    line-height: 1.8;
}

.legal-section ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.date-info {
    color: #999;
    font-style: italic;
    margin-bottom: 2.5rem;
}

.alert-box {
    background: #FFF9E6;
    padding: 2.5rem;
    border-radius: 15px;
    margin: 2.5rem 0;
    border-left: 8px solid #16A085;
}

.alert-box h2 {
    margin-top: 0;
    color: #16A085;
}

/* Footer */
.main-footer {
    background: #2c3e50;
    color: #bbb;
    padding: 3rem 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-bottom: 2rem;
}

.footer-block h4 {
    color: #16A085;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 700;
}

.footer-block ul {
    list-style: none;
}

.footer-block li {
    margin-bottom: 0.7rem;
}

.footer-block a {
    color: #bbb;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-block a:hover {
    color: #16A085;
}

.footer-bar {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #444;
    color: #999;
}

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

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

.age-modal-content {
    background: white;
    padding: 3.5rem;
    border-radius: 25px;
    text-align: center;
    max-width: 550px;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.5);
}

.age-icon {
    font-size: 5rem;
    margin-bottom: 1.5rem;
}

.age-modal-content h2 {
    color: #16A085;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.age-modal-content p {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #555;
}

.age-modal-buttons {
    display: flex;
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.btn-confirm, .btn-deny {
    flex: 1;
    padding: 1.3rem 2rem;
    font-size: 1.2rem;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 700;
    transition: all 0.3s ease;
}

.btn-confirm {
    background: #16A085;
    color: white;
}

.btn-confirm:hover {
    background: #0E6F5C;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(22, 160, 133, 0.4);
}

.btn-deny {
    background: #e0e0e0;
    color: #333;
}

.btn-deny:hover {
    background: #d0d0d0;
}

/* Mobile Styles */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 80px;
        right: -100%;
        width: 75%;
        height: calc(100vh - 80px);
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.2);
        transition: right 0.3s ease;
        gap: 0;
    }

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

    .nav-item {
        color: #16A085;
        padding: 1.2rem 0;
        border-bottom: 1px solid #eee;
        width: 100%;
    }

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

    .hero-text {
        font-size: 1.2rem;
    }

    .intro-grid {
        grid-template-columns: 1fr;
    }

    .image-placeholder {
        width: 200px;
        height: 200px;
    }

    .game-wrapper iframe,
    .game-container-play iframe {
        height: 400px;
    }

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

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