/* Quanteta CVE Tracker — Phase C design (bplus design language) */
/* "Public data bank" look: Lato light typography, borderless tables, official
   severity color system (Critical/High/Med/Low/None), EPSS probability gauge,
   related-record cards. Single source of truth: build.py. CVSS/EPSS/KEV are
   OFFICIAL third-party values — never re-rated, never advice. */

:root {
    --bg: #FAFAFA;
    --surface: #ffffff;
    --text: #2A2A33;
    --text-muted: #8A8A95;
    --border: #ECECEC;
    --accent: #DC2626;
    --accent-hover: #B41F1F;
    /* Official CVSS severity bands (NVD). Used consistently sitewide. */
    --sev-critical: #B91C1C;
    --sev-high:     #EA580C;
    --sev-medium:   #CA8A04;
    --sev-low:      #16A34A;
    --sev-none:     #64748B;
    --kev:          #7C3AED;
    --max-width: 1140px;
}

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

body {
    font-family: "Lato", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* === Typography: high jump ratio, ultra-light weight (bplus) === */
h1, h2, h3 { font-family: "Lato", sans-serif; color: var(--text); }
h1 { font-size: 40px; font-weight: 200; letter-spacing: -1.2px; line-height: 1.15; margin-bottom: 8px; }
h2 { font-size: 24px; font-weight: 300; letter-spacing: -0.5px; margin-bottom: 12px; }
h3 { font-size: 18px; font-weight: 400; }

/* === Navigation === */
.nav-bar {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
.logo { font-size: 25px; font-weight: 200; letter-spacing: -0.5px; color: var(--text); }
.logo:hover { text-decoration: none; }
.logo-sub { display: block; font-size: 12px; font-weight: 300; color: var(--text-muted); letter-spacing: 2px; text-transform: uppercase; }
.nav-links { display: flex; gap: 16px; font-size: 14px; align-items: center; flex-wrap: wrap; }
header { background: transparent; border-bottom: 1px solid var(--border); }
.lang-switch { margin-left: 4px; display: inline-flex; gap: 6px; }
.lang-switch a { font-size: 12px; padding: 2px 6px; border: 1px solid var(--border); border-radius: 4px; }
.lang-switch a.active { background: var(--accent); color: #fff; }

/* === Main === */
main { max-width: var(--max-width); margin: 0 auto; padding: 28px 20px; }
.hero, .cve-hero, .about-hero { margin-bottom: 28px; }
.tldr { font-size: 18px; font-weight: 300; line-height: 1.6; color: var(--text); margin-bottom: 6px; }
.lead { font-size: 15px; font-weight: 300; color: var(--text); margin: 8px 0; max-width: 72ch; line-height: 1.7; }
.updated { font-size: 13px; color: var(--text-muted); }
.muted { color: var(--text-muted); font-size: 13px; }

/* === CVE detail hero: severity-tinted accent bar === */
.cve-hero { border-left: 4px solid var(--sev-none); padding-left: 16px; }
.cve-hero.hero-sev-critical { border-left-color: var(--sev-critical); }
.cve-hero.hero-sev-high     { border-left-color: var(--sev-high); }
.cve-hero.hero-sev-medium   { border-left-color: var(--sev-medium); }
.cve-hero.hero-sev-low      { border-left-color: var(--sev-low); }
.cve-hero.hero-sev-kev      { border-left-color: var(--kev); }
.hero-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.copy-row { margin-top: 8px; }

/* === Official severity badges (NVD bands) — used in tables, cards, hero === */
.sev-badge {
    display: inline-block; padding: 2px 9px; border-radius: 4px;
    font-size: 11px; font-weight: 700; letter-spacing: 0.4px; color: #fff;
    text-transform: uppercase;
}
.sev-badge-lg { font-size: 14px; padding: 4px 14px; }
.sev-critical { background: var(--sev-critical); }
.sev-high     { background: var(--sev-high); }
.sev-medium   { background: var(--sev-medium); }
.sev-low      { background: var(--sev-low); }
.sev-none     { background: var(--sev-none); }

/* severity-colored score text */
.sev-text-critical { color: var(--sev-critical); }
.sev-text-high     { color: var(--sev-high); }
.sev-text-medium   { color: var(--sev-medium); }
.sev-text-low      { color: var(--sev-low); }
.sev-text-none     { color: var(--sev-none); }

/* CISA KEV emphasis */
.kev-yes { color: var(--sev-critical); font-weight: 700; }
.kev-pill {
    display: inline-block; background: var(--kev); color: #fff;
    padding: 3px 11px; border-radius: 4px; font-size: 12px; font-weight: 700;
    letter-spacing: 0.4px;
}

/* === Score cards (CVSS / EPSS / KEV) — severity-bordered, bplus === */
.score-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; }
.score-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 14px; }
.score-item {
    background: var(--surface);
    border: none;
    border-bottom: 2px solid var(--accent);
    border-radius: 4px 4px 0 0;
    padding: 16px 18px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    text-align: left;
}
.score-item.sev-border-critical { border-bottom-color: var(--sev-critical); }
.score-item.sev-border-high     { border-bottom-color: var(--sev-high); }
.score-item.sev-border-medium   { border-bottom-color: var(--sev-medium); }
.score-item.sev-border-low      { border-bottom-color: var(--sev-low); }
.score-item.sev-border-none     { border-bottom-color: var(--sev-none); }
.score-label { display: block; font-size: 12px; color: var(--text-muted); font-weight: 700; letter-spacing: 0.5px; margin-bottom: 4px; text-transform: uppercase; }
.score-value {
    display: block;
    font-size: 36px;
    font-weight: 200;
    letter-spacing: -1.5px;
    font-family: "Lato", sans-serif;
    line-height: 1.1;
}
.score-value small, .score-value .of100 { font-size: 13px; color: var(--text-muted); font-weight: 300; letter-spacing: 0; }
.score-sub { display: block; font-size: 12px; color: var(--text-muted); margin-top: 6px; }
.score-src { display: block; font-size: 11px; color: var(--text-muted); margin-top: 6px; }

/* EPSS probability gauge (official 0-1 value shown as 0-100% fill, not a rating) */
.gauge-track { display: block; height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; margin: 8px 0 4px; }
.gauge-fill { display: block; height: 100%; background: var(--accent); border-radius: 3px; width: 0; transition: width 1.2s cubic-bezier(0.25,0.46,0.45,0.94); }

/* === Severity summary cards on index === */
.severity-summary { margin-bottom: 28px; }
.severity-summary .score-card {
    background: var(--surface);
    border: none;
    border-bottom: 2px solid var(--sev-none);
    border-radius: 4px 4px 0 0;
    padding: 16px 18px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    text-align: center;
}
.severity-summary .score-card h3 { font-size: 13px; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 4px; }
.severity-summary .sev-count { font-size: 32px; font-weight: 200; letter-spacing: -1px; margin: 0; }
.score-card.sev-critical { border-bottom-color: var(--sev-critical); }
.score-card.sev-high     { border-bottom-color: var(--sev-high); }
.score-card.sev-medium   { border-bottom-color: var(--sev-medium); }
.score-card.sev-low      { border-bottom-color: var(--sev-low); }
.score-card.sev-none     { border-bottom-color: var(--sev-none); }
.score-card.sev-kev      { border-bottom-color: var(--kev); }
.score-card.sev-critical h3 a { color: var(--sev-critical); }
.score-card.sev-high h3 a     { color: var(--sev-high); }
.score-card.sev-medium h3 a   { color: var(--sev-medium); }
.score-card.sev-low h3 a      { color: var(--sev-low); }
.score-card.sev-none h3 a     { color: var(--sev-none); }
.score-card.sev-kev h3 a      { color: var(--kev); }

/* === Tables (borderless, bplus) === */
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: transparent; border: none; font-size: 14px; }
thead { background: transparent; border-bottom: 2px solid var(--border); }
th { padding: 12px 14px; text-align: left; font-size: 13px; font-weight: 700; color: var(--text); white-space: nowrap; }
td { padding: 10px 14px; border-top: 1px solid var(--border); white-space: nowrap; }
tbody tr { border-bottom: 1px solid var(--border); }
tbody tr:hover { background: #F5F7FA; }
.vendors-cell { white-space: normal; max-width: 280px; }
code { font-family: "SFMono-Regular", Menlo, Consolas, monospace; font-size: 12px; word-break: break-all; }

/* === Filters === */
.filters { background: transparent; border: none; border-bottom: 1px solid var(--border); border-radius: 0; padding: 14px 0; margin-bottom: 22px; }
.filters h2 { font-size: 18px; font-weight: 300; margin-bottom: 12px; }
.filter-row { display: flex; flex-wrap: wrap; gap: 16px; }
.filter-group { flex: 1; min-width: 150px; }
.filter-group label { display: block; font-size: 12px; font-weight: 700; color: var(--text-muted); margin-bottom: 4px; }
.filter-group input, .filter-group select { width: 100%; padding: 7px 10px; border: 1px solid var(--border); border-radius: 5px; font-size: 14px; background: var(--surface); }
.filter-group input:focus, .filter-group select:focus { outline: none; border-color: var(--accent); }
.filter-check { display: flex; flex-direction: column; }
.filter-check input { width: auto; margin-top: 6px; }
.filter-count { margin-top: 8px; font-size: 13px; color: var(--text-muted); }

/* === Detail metadata grid (striped + ruled rows for readability) === */
.meta-grid {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 0;
    font-size: 14px;
    border-top: 1px solid var(--border);
}
.meta-grid dt, .meta-grid dd { padding: 9px 14px; border-bottom: 1px solid var(--border); align-self: stretch; }
.meta-grid dt { font-weight: 700; color: var(--text-muted); }
.meta-grid dd { margin: 0; }
.meta-grid dt:nth-of-type(odd), .meta-grid dt:nth-of-type(odd) + dd { background: #FAFBFC; }

/* === Related CVE cards (shared-facet neighbourhood, bplus tone) === */
.related-cves { margin-top: 36px; }
.related-axis { margin-bottom: 22px; }
.related-axis-title {
    font-size: 13px; font-weight: 700; letter-spacing: 0.5px;
    color: var(--text-muted); margin: 0 0 10px; padding-bottom: 4px;
    border-bottom: 1px solid var(--border);
}
.related-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.related-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 10px;
    background: var(--surface);
    border: none;
    border-bottom: 2px solid var(--sev-none);
    border-radius: 4px 4px 0 0;
    padding: 14px 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    color: var(--text);
    transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.related-card:hover { text-decoration: none; box-shadow: 0 3px 10px rgba(0,0,0,0.08); transform: translateY(-2px); }
.related-card.sev-border-critical { border-bottom-color: var(--sev-critical); }
.related-card.sev-border-high     { border-bottom-color: var(--sev-high); }
.related-card.sev-border-medium   { border-bottom-color: var(--sev-medium); }
.related-card.sev-border-low      { border-bottom-color: var(--sev-low); }
.related-card.sev-border-none     { border-bottom-color: var(--sev-none); }
.related-name { display: block; font-size: 14px; font-weight: 700; line-height: 1.3; color: var(--text); font-family: "SFMono-Regular", Menlo, Consolas, monospace; }
.related-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.related-value { font-size: 13px; font-weight: 700; color: var(--text); }
.related-kev { font-size: 11px; font-weight: 700; color: var(--kev); letter-spacing: 0.4px; }

/* === Rank tabs === */
.rank-tabs { display: flex; gap: 8px; margin: 12px 0; flex-wrap: wrap; }
.rank-tabs a { padding: 5px 14px; border: 1px solid var(--border); border-radius: 6px; font-weight: 600; font-size: 13px; }
.rank-tabs a.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* === Breadcrumb / copy button === */
.breadcrumb { font-size: 13px; color: var(--text-muted); margin-bottom: 16px; }
.copy-btn { display: inline-block; background: transparent; border: 1px solid var(--border); border-radius: 4px; padding: 2px 8px; font-size: 11px; cursor: pointer; color: var(--text-muted); font-family: inherit; }
.copy-btn:hover { background: #F1F3F5; color: var(--text); }

/* === Generic sections === */
section { margin-bottom: 28px; }
section h2 { font-size: 24px; font-weight: 300; margin-bottom: 12px; }
section h3 { font-size: 17px; font-weight: 400; margin: 14px 0 6px; }
section p, section li { font-size: 14px; color: var(--text); margin-bottom: 6px; }
section ul, section ol { padding-left: 20px; }
section dl { margin-bottom: 8px; }
section dt { font-weight: 700; margin-top: 8px; }
section dd { margin: 0 0 4px 0; }
.source-text { background: #F5F7FA; border-radius: 6px; padding: 12px 16px; line-height: 1.7; }
pre { background: #F5F7FA; border-radius: 6px; padding: 12px 16px; overflow-x: auto; }

.back-link { margin-top: 32px; }
.error-page { text-align: center; padding: 60px 20px; }
.error-page h1 { font-size: 40px; margin-bottom: 16px; }

/* === Footer === */
footer { border-top: 1px solid var(--border); margin-top: 48px; padding: 24px 0; font-size: 13px; color: var(--text-muted); }
.footer-inner { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; text-align: center; }
.footer-inner a { color: var(--text-muted); text-decoration: underline; }

/* === Fact tags (mechanical signals from official source fields; not a rating) === */
.tags-cell { white-space: normal; max-width: 230px; }
.fact-tags-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 4px; }
.attack-cond { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.fact-tag {
    display: inline-block; padding: 1px 7px; margin: 1px 0;
    border-radius: 3px; font-size: 11px; font-weight: 700; letter-spacing: 0.2px;
    border: 1px solid var(--border); background: #F1F3F5; color: var(--text); cursor: help;
    white-space: nowrap;
}
.fact-tag.ft-kev   { background: #F3ECFF; border-color: #DCC8FF; color: var(--kev); }
.fact-tag.ft-epss  { background: #FFF1E6; border-color: #FFD8B8; color: var(--sev-high); }
.fact-tag.ft-net,
.fact-tag.ft-noauth,
.fact-tag.ft-noui  { background: #FEECEC; border-color: #F8C9C9; color: var(--sev-critical); }
.fact-tag.ft-type  { background: #ECF1F8; border-color: #CFDCEC; color: #334155; }
.fact-tag.ft-patch { background: #E9F6EE; border-color: #C2E6CF; color: var(--sev-low); }

/* === Legend / glossary (collapsible) === */
.legend { margin-bottom: 22px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); }
.legend > summary { cursor: pointer; padding: 12px 16px; font-weight: 700; font-size: 14px; }
.legend[open] > summary { border-bottom: 1px solid var(--border); }
.legend-list { list-style: none; padding: 12px 16px 4px; margin: 0; }
.legend-list li { font-size: 13px; margin-bottom: 8px; line-height: 1.6; }
.legend .muted { padding: 0 16px 14px; margin: 0; }

/* === Advanced filter row === */
.adv-filter-row { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--border); }
.adv-filter-row .filter-group { min-width: 120px; }
.filter-actions { margin-top: 10px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.filter-actions .copy-btn { font-size: 12px; padding: 4px 10px; }

/* === Detail "At a glance" summary card === */
.glance-card { background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 18px 20px; box-shadow: 0 1px 3px rgba(0,0,0,0.04); }
.glance-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px 24px; margin: 0; }
.glance-item dt { font-size: 11px; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase; color: var(--text-muted); margin: 0 0 3px; }
.glance-item dd { margin: 0; font-size: 15px; }
.glance-item dd small { font-size: 11px; color: var(--text-muted); font-weight: 400; }

/* === Reference type labels === */
.ref-list { list-style: none; padding-left: 0; }
.ref-list li { margin-bottom: 7px; display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.ref-label { display: inline-block; min-width: 96px; font-size: 10px; font-weight: 700; letter-spacing: 0.3px; text-transform: uppercase; padding: 1px 7px; border-radius: 3px; border: 1px solid var(--border); background: #F1F3F5; color: var(--text-muted); text-align: center; }
.ref-label.ref-vendor  { background: #E9F6EE; border-color: #C2E6CF; color: var(--sev-low); }
.ref-label.ref-patch   { background: #E9F6EE; border-color: #C2E6CF; color: var(--sev-low); }
.ref-label.ref-exploit { background: #FEECEC; border-color: #F8C9C9; color: var(--sev-critical); }
.ref-label.ref-cisa    { background: #F3ECFF; border-color: #DCC8FF; color: var(--kev); }
.ref-label.ref-nvd     { background: #ECF1F8; border-color: #CFDCEC; color: #334155; }

/* === Responsive === */
@media (max-width: 768px) {
    h1 { font-size: 30px; }
    h2, section h2 { font-size: 21px; }
    .nav-bar { flex-direction: column; align-items: flex-start; }
    .filter-row { flex-direction: column; }
    .score-grid { grid-template-columns: 1fr 1fr; }
    .related-cards { grid-template-columns: 1fr 1fr; }
    .meta-grid { grid-template-columns: 140px 1fr; }
    td, th { padding: 8px 8px; font-size: 13px; }
}
@media (max-width: 480px) {
    .score-grid, .related-cards { grid-template-columns: 1fr; }
    .meta-grid { grid-template-columns: 110px 1fr; }
}