:root {
  --ink: #223447;
  --ink-2: #3b4d60;
  --muted: #718093;
  --line: #d7dde3;
  --line-2: #e7ebef;
  --paper: #f7f7f4;
  --card: #fff;
  --banner: #1e293b;
  --banner-2: #253349;
  --navy: #263a50;
  --navy-soft: #40566e;
  --blue-grey: #8798aa;
  --chip: #edf1f4;
  --chip-hover: #dde5eb;
  --shadow: 0 12px 30px rgba(31, 47, 64, .06);
  --radius: 18px;
  --mono: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); line-height: 1.55; }
a { color: inherit; }
button, input, select { font: inherit; }
button, select { cursor: pointer; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: 16px; z-index: 100; padding: 10px 14px; border-radius: 9px; background: #fff; color: var(--ink); transform: translateY(-150%); box-shadow: var(--shadow); }
.skip-link:focus { transform: translateY(0); }

.site-header {
  color: #f8fafc;
  background: radial-gradient(circle at 78% 15%, rgba(148, 163, 184, .16), transparent 25rem), linear-gradient(145deg, var(--banner), var(--banner) 58%, var(--banner-2));
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.topbar { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid rgba(255,255,255,.12); }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-family: var(--mono); font-size: 18px; font-weight: 800; }
.mini-tab { width: 46px; height: 31px; display: inline-flex; align-items: center; gap: 3px; padding: 0 5px; position: relative; border: 1px solid rgba(255,255,255,.48); border-radius: 8px 8px 5px 5px; background: rgba(255,255,255,.08); }
.mini-tab__dot { width: 4px; height: 4px; border-radius: 50%; background: #a9bacb; }
.mini-tab__label { margin-left: auto; display: grid; place-items: center; width: 16px; height: 20px; font-weight: 900; color: #fff; }
.top-sources { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.top-sources a { border: 1px solid rgba(255,255,255,.18); border-radius: 999px; padding: 5px 9px; color: #dce5ed; text-decoration: none; font: 700 11px var(--mono); }
.top-sources a:hover { color: #fff; background: rgba(255,255,255,.07); }

.hero { min-height: 360px; display: grid; grid-template-columns: 1.35fr .8fr; gap: 64px; align-items: center; padding: 54px 0 62px; }
.eyebrow { margin: 0 0 8px; color: var(--blue-grey); text-transform: uppercase; letter-spacing: .14em; font-size: 12px; font-weight: 800; }
.hero .eyebrow { color: #a9b9c9; }
.hero h1 { max-width: 760px; margin: 0; font-size: clamp(42px, 6vw, 72px); letter-spacing: -.045em; line-height: .98; }
.hero h1 span { color: #b9c8d7; font-family: var(--mono); }
.lede { max-width: 710px; margin: 24px 0 0; color: #d5dee6; font-size: 18px; }

.browser-mark { transform: rotate(1.2deg); border: 1px solid rgba(255,255,255,.28); border-radius: 17px; overflow: hidden; background: #f7f8f8; color: var(--ink); box-shadow: 0 25px 60px rgba(0,0,0,.14); }
.browser-mark__bar { height: 52px; padding: 0 15px; display: flex; align-items: center; gap: 7px; background: #8292a3; }
.browser-mark__bar > span { width: 9px; height: 9px; border-radius: 50%; background: #c7d0d8; }
.browser-mark__tab { align-self: end; margin-left: 8px; min-width: 160px; height: 40px; padding: 10px 14px 8px; border-radius: 10px 10px 0 0; background: #f7f8f8; font: 700 13px var(--mono); display: flex; justify-content: space-between; }
.browser-mark__tab b { color: #8c98a4; }
.browser-mark__bar i { margin-left: auto; color: #d8e0e7; font: normal 24px var(--mono); }
.browser-mark__body { min-height: 125px; display: flex; align-items: center; gap: 24px; padding: 28px; }
.browser-mark__body small { display: block; margin-bottom: 4px; color: var(--muted); font: 11px var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.browser-mark__body strong { font: 800 24px var(--mono); }
.pixel-bars { display: flex; align-items: end; gap: 5px; height: 52px; }
.pixel-bars i { width: 11px; background: #8192a4; }
.pixel-bars i:nth-child(1) { height: 13px; }
.pixel-bars i:nth-child(2) { height: 27px; }
.pixel-bars i:nth-child(3) { height: 39px; }
.pixel-bars i:nth-child(4) { height: 52px; }

.main-shell { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 54px; padding-top: 54px; padding-bottom: 76px; }
.filters { position: sticky; top: 24px; align-self: start; }
.filter-block { padding: 0 0 25px; margin-bottom: 25px; border-bottom: 1px solid var(--line); }
.filter-block > label, .filter-label, .filter-heading { display: block; margin-bottom: 10px; font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); }
.filter-heading { display: flex; align-items: center; justify-content: space-between; }
.filter-heading label { cursor: default; }
.text-button { padding: 0; border: 0; background: transparent; color: var(--muted); font-size: 11px; text-transform: lowercase; }
.text-button:hover { color: var(--ink); }
.search-wrap { position: relative; }
.search-wrap svg { position: absolute; left: 12px; top: 50%; width: 16px; height: 16px; transform: translateY(-50%); fill: none; stroke: var(--muted); stroke-width: 2; }
input[type="search"], select { width: 100%; border: 1px solid var(--line); background: #fff; color: var(--ink); border-radius: 10px; outline: none; }
input[type="search"] { padding: 10px 12px 10px 37px; }
select { padding: 10px 34px 10px 11px; }
input:focus, select:focus { border-color: #8399ad; box-shadow: 0 0 0 3px rgba(92,119,145,.12); }

.year-list { display: flex; flex-direction: column; gap: 4px; }
.year-button { width: 100%; display: flex; justify-content: space-between; align-items: center; border: 0; border-radius: 8px; padding: 7px 9px; background: transparent; color: var(--ink-2); text-align: left; }
.year-button span:last-child { color: var(--muted); font: 11px var(--mono); }
.year-button:hover { background: var(--chip); }
.year-button.active { color: #fff; background: var(--banner); }
.year-button.active span:last-child { color: #d4dde6; }
.filter-about p { margin: 0; color: var(--muted); font-size: 13px; }

.archive-toolbar { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 22px; }
.archive-toolbar h2 { margin: 0; font-size: 29px; letter-spacing: -.03em; }
.archive-meta { text-align: right; }
.archive-meta strong { display: block; font: 800 18px var(--mono); }
.archive-meta span { color: var(--muted); font-size: 12px; }
.active-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 20px; }
.active-chip { display: inline-flex; align-items: center; gap: 7px; padding: 5px 9px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--ink-2); font-size: 12px; }
.active-chip button { border: 0; background: transparent; padding: 0; color: var(--muted); }

.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.stat-card { min-width: 0; display: flex; flex-direction: column; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); box-shadow: 0 1px 0 rgba(34,52,71,.02); transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.stat-card:hover { transform: translateY(-2px); border-color: #c2cbd4; box-shadow: var(--shadow); }
.card-topline { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.stat-number { color: var(--navy-soft); font: 800 13px var(--mono); background: var(--chip); border-radius: 7px; padding: 5px 8px; }
.stat-date { color: var(--muted); font: 11px var(--mono); }
.stat-title { margin: 18px 0 12px; font-size: 19px; line-height: 1.3; letter-spacing: -.018em; }
.duplicate-note { margin: -4px 0 12px; color: #7a5a32; font: 700 11px var(--mono); }
.stat-text { margin-bottom: 16px; color: #536273; font-size: 14px; overflow-wrap: anywhere; white-space: pre-line; }
.stat-text a { color: #395a78; text-underline-offset: 2px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 4px; }
.tag { border: 0; border-radius: 999px; padding: 5px 8px; background: var(--chip); color: #4a5d70; font: 11px var(--mono); }
.tag:hover { background: var(--chip-hover); color: var(--ink); }

.resource-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.resource-link { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 9px; padding: 6px 9px; color: #315b77; text-decoration: none; font-size: 12px; font-weight: 750; background: #fbfcfd; }
.resource-link:hover { background: var(--chip); }
.card-footer { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: 16px; padding-top: 15px; border-top: 1px solid var(--line-2); }
.posted-label { color: var(--muted); font-size: 11px; }
.source-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.source-link { display: inline-flex; align-items: center; padding: 5px 8px; border-radius: 999px; border: 1px solid var(--line); background: #fff; color: var(--ink-2); text-decoration: none; font: 700 11px var(--mono); }
.source-link:hover { background: var(--chip); color: var(--ink); }

.source-details { margin-top: 11px; color: var(--muted); font-size: 11px; }
.source-details summary { cursor: pointer; width: max-content; list-style: none; border-bottom: 1px dotted #9ba8b4; }
.source-details summary::-webkit-details-marker { display: none; }
.source-detail-list { display: grid; gap: 5px; margin-top: 9px; padding: 10px; border-radius: 9px; background: #f7f9fa; }
.source-detail { display: grid; grid-template-columns: 70px 1fr; gap: 8px; }
.source-detail b { color: var(--ink-2); font-family: var(--mono); }

.number-footnote { margin: 24px 0 0; padding: 14px 16px; border-left: 3px solid #94a3b8; background: #eef1f3; color: #647284; font-size: 12px; border-radius: 0 8px 8px 0; }
.number-footnote strong { color: var(--ink-2); }
.empty-state { margin-top: 30px; padding: 55px 20px; text-align: center; border: 1px dashed #c8d0d8; border-radius: var(--radius); color: var(--muted); }
.empty-state h3 { margin: 12px 0 5px; color: var(--ink); }
.empty-state p { margin: 0 0 18px; }
.empty-icon { font: 800 32px var(--mono); color: #7e90a2; }
.button { border: 0; border-radius: 9px; padding: 9px 13px; background: var(--banner); color: #fff; font-weight: 750; }

.site-footer { border-top: 1px solid var(--line); background: #f0f2f2; color: var(--muted); }
.footer-inner { min-height: 100px; display: flex; justify-content: space-between; align-items: center; gap: 24px; font-size: 12px; }
.footer-inner p { margin: 0; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 36px; }
  .browser-mark { max-width: 420px; }
  .main-shell { grid-template-columns: 1fr; gap: 28px; }
  .filters { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .filter-block { margin: 0; }
  .filter-about { display: none; }
  .year-list { flex-direction: row; flex-wrap: wrap; }
  .year-button { width: auto; gap: 8px; }
}
@media (max-width: 650px) {
  .shell { width: min(100% - 26px, 1180px); }
  .topbar { min-height: 68px; }
  .top-sources a { padding: 4px 7px; font-size: 10px; }
  .hero { padding: 42px 0 48px; min-height: 0; }
  .hero h1 { font-size: 45px; }
  .lede { font-size: 16px; }
  .browser-mark { display: none; }
  .main-shell { padding-top: 34px; }
  .filters { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .archive-toolbar { align-items: start; }
  .footer-inner { padding: 24px 0; flex-direction: column; align-items: start; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }