:root,
html[data-theme="dark"] {
    --public-red: #d71920;
    --public-ink: #f5f7fb;
    --public-muted: #aeb8c4;
    --public-line: #2d3642;
    --public-soft: #111820;
    --public-card: #18212b;
    --public-card-soft: #202b37;
    --public-hover: #2a1820;
    --public-shadow: rgba(0, 0, 0, .34);
}

html[data-theme="light"] {
    --public-red: #b00020;
    --public-ink: #1f242b;
    --public-muted: #66717d;
    --public-line: #dfe4ea;
    --public-soft: #f6f7f9;
    --public-card: #ffffff;
    --public-card-soft: #ffffff;
    --public-hover: #fff2f4;
    --public-shadow: rgba(17, 24, 39, .06);
}

html {
    min-height: 100%;
    background: var(--public-soft) !important;
}

html[data-theme="dark"],
html[data-theme="light"] {
    background: var(--public-soft) !important;
}

body {
    min-height: 100%;
    background: var(--public-soft) !important;
}

body.public-portal {
    margin: 0;
    min-height: 100vh;
    background: var(--public-soft) !important;
    color: var(--public-ink) !important;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.public-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.public-header {
    background: var(--public-card) !important;
    color: var(--public-ink) !important;
    border-bottom: 1px solid var(--public-line) !important;
    box-shadow: none !important;
}

.public-header::before,
.public-header::after {
    display: none !important;
}

.public-header-inner {
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.public-brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: inherit !important;
    text-decoration: none;
}

.public-brand img {
    width: 46px;
    height: 46px;
    object-fit: contain;
}

.public-brand strong,
.public-brand small {
    display: block;
}

.public-brand strong {
    color: var(--public-ink);
    font-size: 1.05rem;
}

.public-brand small {
    color: var(--public-muted);
    margin-top: 2px;
}

.public-top-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.public-top-nav a,
.public-theme-toggle {
    min-height: 38px;
    color: var(--public-ink) !important;
    text-decoration: none !important;
    font: inherit;
    font-weight: 800;
    padding: 8px 11px;
    border-radius: 6px;
}

.public-theme-toggle {
    border: 1px solid var(--public-line);
    background: var(--public-soft);
    cursor: pointer;
}

.public-top-nav a:hover,
.public-theme-toggle:hover {
    background: var(--public-card-soft);
}

.public-layout {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 28px;
    padding: 28px 0 40px;
}

.public-sidebar {
    position: sticky;
    top: 18px;
    align-self: start;
    background: var(--public-card);
    border: 1px solid var(--public-line);
    border-radius: 8px;
    padding: 18px;
}

.public-sidebar > strong {
    display: block;
    margin-bottom: 14px;
    font-size: .95rem;
}

.public-nav-book {
    border-top: 1px solid var(--public-line);
    padding-top: 12px;
    margin-top: 12px;
}

.public-nav-book:first-of-type {
    border-top: 0;
    margin-top: 0;
    padding-top: 0;
}

.public-nav-book span,
.public-nav-book small,
.public-nav-book a {
    display: block;
}

.public-nav-book span {
    font-weight: 800;
    margin-bottom: 7px;
}

.public-nav-book small {
    color: var(--public-muted);
    font-weight: 700;
    margin: 10px 0 5px;
}

.public-nav-book a {
    color: var(--public-ink);
    text-decoration: none;
    padding: 7px 8px;
    border-radius: 6px;
    line-height: 1.35;
}

.public-nav-book a:hover,
.public-nav-book a.active {
    background: var(--public-hover);
    color: var(--public-red);
}

.public-content-card {
    background: var(--public-card);
    border: 1px solid var(--public-line);
    border-radius: 8px;
    padding: clamp(24px, 4vw, 42px);
    box-shadow: 0 12px 30px var(--public-shadow);
}

.public-content-card h1 {
    margin-top: 0;
    color: var(--public-ink);
}

.public-muted,
.public-updated,
.public-breadcrumb {
    color: var(--public-muted);
}

.public-page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
    margin-top: 24px;
}

.public-page-card {
    display: block;
    color: inherit;
    text-decoration: none;
    border: 1px solid var(--public-line);
    border-radius: 8px;
    padding: 18px;
    background: var(--public-card-soft);
}

.public-page-card:hover {
    border-color: var(--public-red);
    box-shadow: 0 10px 24px rgba(176, 0, 32, .18);
}

.public-page-card span,
.public-page-card small {
    display: block;
    color: var(--public-muted);
}

.public-page-card strong {
    display: block;
    margin: 8px 0;
    font-size: 1.05rem;
}

.public-article .page-content {
    max-width: 860px;
    color: var(--public-ink);
}

.public-article .page-content img {
    max-width: 100%;
    height: auto;
}

.public-article .page-content table {
    width: 100%;
}

.public-footer {
    background: var(--public-soft);
    border-top: 1px solid var(--public-line);
    color: var(--public-muted);
    padding: 18px 0 28px;
    font-size: .92rem;
}

code {
    background: var(--public-card-soft);
    color: var(--public-ink);
    border-radius: 4px;
    padding: 2px 5px;
}

@media (max-width: 820px) {
    .public-header-inner {
        align-items: flex-start;
        flex-direction: column;
        padding: 16px 0;
    }

    .public-layout {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .public-sidebar {
        position: static;
    }
}