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

body {
    font-family: 'Open Sans', sans-serif;
    background: linear-gradient(135deg, #e0f7fa 0%, #b2ebf2 100%);
    color: #263238;
    line-height: 1.7;
    min-height: 100vh;
}

.header-bar {
    background: linear-gradient(90deg, #00838f 0%, #00acc1 100%);
    box-shadow: 0 3px 10px rgba(0, 131, 143, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    max-width: 100%;
    padding: 1.2rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
}

.logo-wave {
    font-size: 2rem;
}

.logo-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.7rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 1px;
}

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

.btn-line {
    width: 28px;
    height: 3px;
    background: #ffffff;
    border-radius: 2px;
    transition: all 0.3s;
}

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

.nav-link {
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255, 255, 255, 0.2);
}

.main-wrapper {
    max-width: 100%;
}

.splash-area {
    background: linear-gradient(135deg, rgba(0, 131, 143, 0.95) 0%, rgba(0, 172, 193, 0.95) 100%),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><rect fill="%2300838f" width="1200" height="600"/></svg>');
    background-size: cover;
    padding: 5rem 2rem;
    text-align: center;
    color: #ffffff;
}

.splash-content h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.splash-text {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.splash-action {
    display: inline-block;
    background: #ffffff;
    color: #00838f;
    padding: 1.2rem 3rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s;
    box-shadow: 0 5px 20px rgba(255, 255, 255, 0.3);
}

.splash-action:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.5);
}

.content-wrap {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.highlights {
    padding: 5rem 2rem;
    background: #ffffff;
}

.main-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    color: #00838f;
    text-align: center;
    margin-bottom: 3rem;
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.highlight-card {
    background: linear-gradient(135deg, #e0f7fa 0%, #b2ebf2 100%);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 131, 143, 0.15);
    transition: all 0.3s;
}

.highlight-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 35px rgba(0, 131, 143, 0.25);
}

.card-emoji {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.highlight-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.7rem;
    color: #00838f;
    margin-bottom: 1rem;
}

.game-feature {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, #b2ebf2 0%, #80deea 100%);
}

.feature-description {
    text-align: center;
    font-size: 1.2rem;
    color: #263238;
    margin-bottom: 3rem;
}

.game-display {
    background: #000000;
    border-radius: 15px;
    overflow: hidden;
    border: 5px solid #00838f;
    box-shadow: 0 10px 40px rgba(0, 131, 143, 0.4);
}

.game-frame {
    width: 100%;
    height: 700px;
    border: none;
    display: block;
}

.game-alert {
    margin-top: 2rem;
    text-align: center;
    background: rgba(255, 193, 7, 0.2);
    padding: 1.5rem;
    border-radius: 10px;
    border: 3px solid #ffc107;
}

.game-alert p {
    color: #263238;
    font-weight: 600;
}

.advantages {
    padding: 5rem 2rem;
    background: #ffffff;
}

.advantages-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-item {
    background: linear-gradient(135deg, #e0f7fa 0%, #b2ebf2 100%);
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s;
}

.advantage-item:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 25px rgba(0, 131, 143, 0.2);
}

.advantage-symbol {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.advantage-item h4 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.4rem;
    color: #00838f;
    margin-bottom: 1rem;
}

.important-info {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
}

.info-panel {
    max-width: 1000px;
    margin: 0 auto;
    background: #ffffff;
    padding: 3rem;
    border-radius: 15px;
    border: 3px solid #ff9800;
    box-shadow: 0 8px 30px rgba(255, 152, 0, 0.2);
}

.info-panel h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2rem;
    color: #ff9800;
    margin-bottom: 2rem;
}

.info-items {
    list-style-position: inside;
    line-height: 2;
}

.info-items li {
    margin-bottom: 1rem;
}

.page-footer {
    background: linear-gradient(135deg, #263238 0%, #37474f 100%);
    color: #b0bec5;
    padding: 4rem 2rem 2rem;
}

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

.footer-segment h4 {
    font-family: 'Montserrat', sans-serif;
    color: #00acc1;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.help-links,
.policy-links {
    list-style: none;
}

.help-links li,
.policy-links li {
    margin-bottom: 0.8rem;
}

.help-links a,
.policy-links a {
    color: #b0bec5;
    text-decoration: none;
    transition: color 0.3s;
}

.help-links a:hover,
.policy-links a:hover {
    color: #00acc1;
}

.footer-end {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 172, 193, 0.3);
    color: #78909c;
}

.verify-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(38, 50, 56, 0.97);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

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

.verify-box {
    background: #ffffff;
    padding: 3.5rem;
    border-radius: 20px;
    max-width: 550px;
    text-align: center;
    border: 5px solid #00838f;
    box-shadow: 0 15px 50px rgba(0, 131, 143, 0.5);
}

.verify-badge {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.verify-box h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.2rem;
    color: #00838f;
    margin-bottom: 1.5rem;
}

.verify-box p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #263238;
}

.verify-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 2.5rem;
}

.action-yes,
.action-no {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.action-yes {
    background: linear-gradient(90deg, #00838f 0%, #00acc1 100%);
    color: #ffffff;
}

.action-yes:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(0, 131, 143, 0.4);
}

.action-no {
    background: #cfd8dc;
    color: #263238;
}

.action-no:hover {
    background: #b0bec5;
}

.page-intro {
    background: linear-gradient(90deg, #00838f 0%, #00acc1 100%);
    padding: 4rem 2rem;
    text-align: center;
    color: #ffffff;
}

.page-intro h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.intro-text {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
}

.game-area {
    padding: 4rem 2rem;
    background: linear-gradient(135deg, #b2ebf2 0%, #80deea 100%);
}

.game-info {
    padding: 4rem 2rem;
    background: #ffffff;
}

.info-container {
    max-width: 1200px;
    margin: 0 auto;
    background: linear-gradient(135deg, #e0f7fa 0%, #b2ebf2 100%);
    padding: 3rem;
    border-radius: 15px;
}

.info-container h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2rem;
    color: #00838f;
    margin-bottom: 2rem;
    text-align: center;
}

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

.segment {
    text-align: center;
}

.segment-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 1rem;
}

.info-notice {
    background: rgba(255, 193, 7, 0.2);
    padding: 2rem;
    border-radius: 10px;
    border: 3px solid #ffc107;
    margin-top: 2rem;
}

.info-notice p {
    color: #263238;
    font-weight: 600;
    text-align: center;
}

.doc-section {
    padding: 4rem 2rem;
    background: linear-gradient(135deg, #b2ebf2 0%, #80deea 100%);
}

.doc-container {
    max-width: 1000px;
    margin: 0 auto;
    background: #ffffff;
    padding: 4rem 3rem;
    border-radius: 15px;
    box-shadow: 0 8px 30px rgba(0, 131, 143, 0.2);
}

.doc-container h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 3rem;
    color: #00838f;
    margin-bottom: 0.5rem;
}

.doc-updated {
    color: #78909c;
    font-style: italic;
    margin-bottom: 3rem;
}

.doc-block {
    margin-bottom: 2.5rem;
}

.doc-block h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    color: #00838f;
    margin-bottom: 1rem;
}

.doc-block h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.4rem;
    color: #00838f;
    margin-bottom: 0.8rem;
}

.doc-block ul {
    margin-left: 2rem;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.doc-block li {
    margin-bottom: 0.8rem;
}

.doc-block p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.doc-summary {
    background: rgba(0, 172, 193, 0.1);
    padding: 2.5rem;
    border-radius: 12px;
    border: 3px solid #00acc1;
    margin-top: 3rem;
}

.doc-summary h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    color: #00838f;
    margin-bottom: 1rem;
}

.alert-block {
    background: rgba(255, 193, 7, 0.15);
    padding: 2.5rem;
    border-radius: 12px;
    border: 3px solid #ffc107;
    margin-bottom: 3rem;
}

.alert-block h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    color: #f57c00;
    margin-bottom: 1.5rem;
}

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

    .nav-bar {
        position: fixed;
        top: 68px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 68px);
        background: linear-gradient(180deg, #00838f 0%, #00acc1 100%);
        flex-direction: column;
        padding: 2rem;
        gap: 0;
        transition: left 0.3s;
    }

    .nav-bar.active {
        left: 0;
    }

    .nav-link {
        padding: 1.2rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }

    .splash-content h1 {
        font-size: 2.5rem;
    }

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

    .main-title {
        font-size: 2.2rem;
    }

    .game-frame {
        height: 500px;
    }

    .highlights-grid,
    .advantages-list {
        grid-template-columns: 1fr;
    }

    .verify-box {
        margin: 1rem;
        padding: 2.5rem 2rem;
    }

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

    .page-intro h1 {
        font-size: 2.5rem;
    }

    .doc-container {
        padding: 2.5rem 2rem;
    }

    .doc-container h1 {
        font-size: 2.2rem;
    }
}