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

a, a:visited, a:hover, a:active {
    color: inherit;
    text-decoration: none;
}

body {
    font-family: Calibri, sans-serif;
    background: linear-gradient(180deg, #0b1220 0%, #0f1b31 60%, #0b1220 100%);
    background-image: url('./assets/ui/body_color.png');
    background-repeat: repeat;
    color: #d7e6ff;
    line-height: 1.6;
    min-height: 100vh;
}

.top-banner {
    background-image: url('./assets/ui/back_header.png');
    background-size: cover;
    background-position: center;
    padding: 32px 5vw 48px;
    border-bottom: 1px solid rgba(131, 186, 255, 0.4);
    position: relative;
    overflow: hidden;
}

.top-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11, 18, 32, 0.1) 0%, rgba(11, 18, 32, 0.8) 100%);
    pointer-events: none;
}

.top-banner__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.brand-block {
    display: flex;
    align-items: center;
    gap: 16px;
}

.brand-logo {
    width: 72px;
    height: 72px;
    object-fit: contain;
    filter: drop-shadow(0 0 16px rgba(131, 186, 255, 0.45));
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.brand-name {
    font-size: 22px;
    font-weight: 700;
    color: #83baff;
}

.brand-studio {
    font-size: 14px;
    color: #9bd9f2;
}

.nav-links {
    display: flex;
    gap: 16px;
    align-items: center;
    font-weight: 700;
}

.nav-link {
    padding: 10px 14px;
    border: 1px solid rgba(131, 186, 255, 0.35);
    border-radius: 8px;
    transition: all 0.2s ease;
    color: #d7e6ff;
    background: rgba(9, 15, 28, 0.6);
}

.nav-link:hover,
.nav-link:focus-visible {
    border-color: #83baff;
    box-shadow: 0 0 12px rgba(131, 186, 255, 0.55);
}

.top-banner__title {
    position: relative;
    z-index: 1;
    margin-top: 32px;
}

.top-banner__title h1 {
    font-size: clamp(28px, 3vw, 38px);
    color: #ffffff;
    text-shadow: 0 0 16px rgba(131, 186, 255, 0.45);
    margin-bottom: 6px;
}

.top-banner__title p {
    color: #9bd9f2;
    font-size: 16px;
}

.terms-container {
    max-width: 960px;
    margin: 32px auto 48px;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.card {
    background: rgba(9, 15, 28, 0.75);
    border: 1px solid rgba(131, 186, 255, 0.35);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
    border-radius: 14px;
    padding: 20px 22px;
    backdrop-filter: blur(4px);
}

.card h2 {
    font-size: 22px;
    color: #83baff;
    margin-bottom: 12px;
}

.card p {
    color: #d7e6ff;
}

.card ul {
    list-style: disc;
    padding-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toc-list {
    list-style: decimal;
    padding-left: 18px;
    display: grid;
    gap: 8px;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.toc-list a {
    color: #d7e6ff;
    text-decoration: underline;
    text-decoration-color: rgba(131, 186, 255, 0.65);
}

.toc-list a:hover,
.card a:hover,
.footer-link:hover {
    color: #ffffff;
    text-decoration-color: #83baff;
}

.footer {
    border-top: 1px solid rgba(131, 186, 255, 0.35);
    padding: 28px 5vw;
    background: rgba(9, 15, 28, 0.8);
}

.footer-content {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
    color: #9bd9f2;
}

.footer-links {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.footer-link {
    color: #d7e6ff;
    text-decoration: underline;
}

.footer-brand {
    font-size: 14px;
}

@media (max-width: 640px) {
    .top-banner__content {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .brand-logo {
        width: 60px;
        height: 60px;
    }

    .nav-links {
        width: 100%;
        flex-wrap: wrap;
    }

    .nav-link {
        flex: 1 1 calc(50% - 8px);
        text-align: center;
    }

    .card {
        padding: 18px;
    }

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