:root {
    --page-bg: #f6f8fa;
    --surface: #ffffff;
    --surface-soft: #f0f3f6;
    --table-chrome: #e8edf2;
    --text: #1f2328;
    --muted: #656d76;
    --border: #d0d7de;
    --header: #151a20;
    --primary: #0969da;
    --primary-soft: #ddf4ff;
    --danger: #cf222e;
    --danger-soft: #ffebe9;
    --warning: #9a6700;
    --warning-soft: #fff8c5;
    --success: #1a7f37;
    --success-soft: #dafbe1;
    --scrollbar: #c3ceda;
    --scrollbar-hover: #8fa1b5;
    color-scheme: light;
}

:root[data-theme='dark'] {
    --page-bg: #0d1117;
    --surface: #161b22;
    --surface-soft: #1c2128;
    --table-chrome: #1c2128;
    --text: #f0f3f6;
    --muted: #8c959f;
    --border: #30363d;
    --header: #151a20;
    --primary: #58a6ff;
    --primary-soft: #0d2d4b;
    --danger: #ff7b72;
    --danger-soft: #3d1d20;
    --warning: #d29922;
    --warning-soft: #3d2e10;
    --success: #3fb950;
    --success-soft: #173b22;
    --scrollbar: #484f58;
    --scrollbar-hover: #6e7681;
    color-scheme: dark;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    min-height: 100%;
    background: var(--page-bg);
    scrollbar-color: var(--scrollbar) transparent;
    scrollbar-width: thin;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    background: var(--page-bg);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track,
::-webkit-scrollbar-corner {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar);
    background-clip: padding-box;
    border: 3px solid transparent;
    border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--scrollbar-hover);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 73px;
    padding: 0 28px;
    color: #f7fafc;
    background: var(--header);
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 18px;
    color: #f7fafc;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -.01em;
}

.site-brand:hover {
    text-decoration: none;
}

.site-brand img {
    display: block;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.site-nav > a,
.theme-toggle {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 11px;
    color: #cbd2da;
    background: transparent;
    border: 0;
    border-radius: 7px;
    font: inherit;
    font-size: 13px;
    cursor: pointer;
}

.site-nav > a:hover,
.theme-toggle:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, .07);
    text-decoration: none;
}

.theme-toggle {
    width: 38px;
    justify-content: center;
    border-left: 1px solid rgba(255, 255, 255, .1);
}

.theme-icon::before {
    content: '☾';
    font-size: 19px;
}

:root[data-theme='dark'] .theme-icon::before {
    content: '☀';
}

.detail-page {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 28px 0 48px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 18px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
}

.back-link:hover {
    color: var(--primary);
    text-decoration: none;
}

.advisory-card {
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.advisory-header {
    padding: 28px 30px 24px;
    background: var(--surface-soft);
    border-bottom: 1px solid var(--border);
}

.eyebrow {
    margin: 0 0 7px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -.02em;
}

h1 > span {
    color: var(--primary);
}

.metadata {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
}

.meta-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 26px;
    padding: 3px 9px;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 11px;
    font-weight: 600;
    line-height: 1;
    text-transform: capitalize;
}

.severity-badge {
    border: 0;
    border-radius: 999px;
    /* Neutral default for any severity the presentation filter does not recognise.
       Upstream ships severity "None" on a large share of advisories, and the slug
       space is open, so the known values below override this rather than the other
       way round. Matches the SPA's .severity-unknown treatment. */
    color: var(--muted);
    background: var(--surface-soft);
}

.severity-dot {
    width: 6px;
    height: 6px;
    background: currentColor;
    border-radius: 50%;
}

.severity-badge[data-severity='critical'],
.severity-badge[data-severity='important'] {
    color: var(--danger);
    background: var(--danger-soft);
}

.severity-badge[data-severity='moderate'] {
    color: var(--warning);
    background: var(--warning-soft);
}

.severity-badge[data-severity='low'] {
    color: var(--success);
    background: var(--success-soft);
}

.date-badge {
    color: var(--primary);
    background: var(--primary-soft);
    border-color: transparent;
    text-transform: none;
}

.content-section {
    padding: 25px 30px;
    border-bottom: 1px solid var(--border);
}

.content-section h2 {
    margin: 0 0 12px;
    font-size: 15px;
    font-weight: 600;
}

.description {
    max-width: 920px;
    color: var(--text);
    white-space: pre-wrap;
}

.reference-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.reference-list a {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 3px 9px;
    background: var(--primary-soft);
    border-radius: 7px;
    font-size: 12px;
    font-weight: 500;
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 12px;
}

.section-heading h2 {
    margin: 0;
}

.section-heading > span {
    color: var(--muted);
    font-size: 12px;
}

.package-table-wrap {
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: 9px;
    scrollbar-color: var(--scrollbar) transparent;
    scrollbar-width: thin;
}

.package-table {
    width: 100%;
    min-width: 760px;
    table-layout: fixed;
    border-collapse: collapse;
    font-size: 12px;
}

.package-table th {
    padding: 11px 13px;
    color: var(--muted);
    background: var(--table-chrome);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .05em;
    text-align: left;
    text-transform: uppercase;
}

.package-table th:nth-child(1) { width: 16%; }
.package-table th:nth-child(2) { width: 43%; }
.package-table th:nth-child(3) { width: 41%; }

.package-table td {
    padding: 11px 13px;
    border-top: 1px solid var(--border);
    vertical-align: top;
}

.package-name,
.checksum {
    overflow-wrap: anywhere;
}

.checksum {
    color: var(--muted);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 11px;
}

.arch-badge {
    display: inline-flex;
    padding: 2px 7px;
    color: var(--text);
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 10px;
    font-weight: 600;
}

.generation-note {
    padding: 17px 30px;
    color: var(--muted);
    background: var(--surface-soft);
    font-size: 11px;
}

@media (max-width: 720px) {
    .site-header {
        padding: 0 18px;
    }

    .site-brand {
        font-size: 17px;
    }

    .site-nav > a {
        display: none;
    }

    .detail-page {
        width: min(100% - 24px, 1180px);
        padding-top: 20px;
    }

    .advisory-header,
    .content-section {
        padding: 22px 20px;
    }

    .generation-note {
        padding: 16px 20px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}