:root {
    color-scheme: light dark;
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #f5f7fb;
    color: #1f2933;
}

.site-banner {
    background: #0a1c3d;
    color: #ffffff;
    padding: 12px 24px;
    box-shadow: 0 6px 18px rgba(10, 28, 61, 0.25);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.site-banner__top {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.site-banner__title {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: #ffffff;
}

.site-banner__nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.site-banner__nav a {
    font-size: 0.93rem;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    transition: transform 0.15s ease, background 0.2s ease;
}

.site-banner__nav a:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.22);
}

.page-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 0.88rem;
    margin: 0;
    margin-top: 2px;
    align-items: center;
}

.page-breadcrumb a {
    color: rgba(228, 235, 255, 0.9);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.page-breadcrumb a:hover {
    color: #ffffff;
}

.page-breadcrumb__separator {
    color: rgba(255, 255, 255, 0.6);
}

.page-breadcrumb__current {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

.page-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.page-links a {
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(28, 79, 156, 0.1);
    color: #1c4f9c;
    transition: background 0.15s ease, color 0.15s ease;
}

.page-links a:hover {
    background: rgba(28, 79, 156, 0.18);
    color: #0f2557;
}

.page-links a[aria-current="page"] {
    background: #1c4f9c;
    color: #ffffff;
    cursor: default;
}
a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.content {
    max-width: 980px;
    margin: 0 auto;
    padding: 32px 20px 48px;
}

.content h2 {
    margin-top: 0;
    border-bottom: 2px solid #1c4f9c;
    padding-bottom: 6px;
}

.content section + section {
    margin-top: 28px;
}

.lead {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lead h1 {
    margin: 0;
    font-size: 2rem;
    letter-spacing: 0.02em;
}

.lead > h2 {
    border-bottom: none;
    padding-bottom: 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.grid article {
    background: #ffffff;
    border-radius: 6px;
    padding: 14px 16px;
    box-shadow: 0 8px 16px rgba(15, 37, 87, 0.08);
    border: 1px solid rgba(28, 79, 156, 0.08);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
    min-height: 110px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.grid article:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 24px rgba(15, 37, 87, 0.14);
}

.grid article h3 {
    margin: 0 0 8px;
    font-size: 1.05rem;
}

.grid article p {
    margin: 0;
    font-size: 0.94rem;
    line-height: 1.5;
}

ol {
    padding-left: 24px;
}

.site-footer {
    background: #0a1c3d;
    color: #e5ecfe;
    text-align: center;
    padding: 24px;
}

@media (max-width: 720px) {
    .site-banner {
        align-items: center;
        text-align: center;
    }
    .site-banner__top {
        justify-content: center;
    }
    .site-banner__nav {
        justify-content: center;
    }
    .site-banner__title {
        font-size: 1.1rem;
    }
    .page-links {
        justify-content: center;
    }
    .content {
        padding: 28px 16px 40px;
    }
    .grid {
        gap: 12px;
    }
    .grid article {
        min-height: 100px;
    }
}