/* ECERankings — plain academic layout. System fonts, one accent color. */

:root {
  --text: #1f2328;
  --muted: #59636e;
  --faint: #8c959f;
  --link: #1a56a8;
  --link-visited: #5a3d9a;
  --rule: #d8dee4;
  --rule-strong: #8c959f;
  --stripe: #f6f8fa;
  --hover: #eef3fa;
  --note-bg: #fdf8e6;
  --note-rule: #e3d394;
  --error-bg: #fdf1f1;
  --error-rule: #d1242f;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  color: var(--text);
  background: #fff;
  font: 15px/1.5 var(--font);
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

abbr[title] { text-decoration: none; cursor: help; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip { position: absolute; left: -999px; top: 0; background: #fff; padding: 6px 10px; }
.skip:focus { left: 8px; z-index: 10; }

.muted { color: var(--muted); font-weight: normal; }

/* ---- Header / footer ---- */

.site-header { border-bottom: 1px solid var(--rule); }
.site-header .wrap {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: 4px 24px; padding-top: 10px; padding-bottom: 10px;
}
.site-title { margin: 0; font-size: 17px; font-weight: 700; }
.site-title a { color: var(--text); }
.site-header nav { display: flex; gap: 20px; font-size: 14px; }
.site-header nav a[aria-current="page"] { color: var(--text); font-weight: 600; }

.site-footer {
  margin-top: 48px; border-top: 1px solid var(--rule);
  color: var(--muted); font-size: 13px;
}
.site-footer .wrap { padding-top: 14px; padding-bottom: 28px; }
.site-footer p { margin: 0 0 6px; max-width: 80ch; }

h1 { font-size: 26px; font-weight: 600; line-height: 1.25; margin: 24px 0 8px; }
h2 { font-size: 18px; font-weight: 600; margin: 28px 0 8px; }
h3 { font-size: 15px; font-weight: 600; margin: 20px 0 6px; }

.lede { margin: 0 0 18px; max-width: 78ch; color: #3d444d; }

/* ---- Filter bar ---- */

.filters {
  display: flex; flex-wrap: wrap; align-items: flex-end; gap: 10px 18px;
  padding: 12px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
}
.field { display: flex; flex-direction: column; gap: 3px; }
.field label { font-size: 13px; color: var(--muted); }
.field-grow { flex: 1 1 200px; max-width: 320px; }
.field-actions { margin-left: auto; }

select, input[type="search"], button {
  font: inherit; font-size: 14px; color: var(--text);
}
select, input[type="search"] {
  height: 32px; padding: 4px 8px; border: 1px solid var(--rule-strong);
  border-radius: 3px; background: #fff;
}
select { min-width: 92px; }
#region { min-width: 210px; max-width: 260px; }
input[type="search"] { width: 100%; }

button {
  padding: 5px 12px; border: 1px solid var(--rule-strong); border-radius: 3px;
  background: var(--stripe); cursor: pointer;
}
button:hover:not(:disabled) { background: #e9edf1; }
button:disabled { color: var(--faint); cursor: default; }

button.link {
  padding: 0; border: 0; background: none; color: var(--link); font-size: inherit;
}
button.link:hover { background: none; text-decoration: underline; }

/* ---- Notices / errors ---- */

.notices:empty { display: none; }
.notices { margin-top: 14px; }
.notices p {
  margin: 0 0 6px; padding: 7px 12px; max-width: 90ch;
  background: var(--note-bg); border-left: 3px solid var(--note-rule); font-size: 14px;
}
.error {
  margin: 8px 0 12px; padding: 10px 14px; background: var(--error-bg);
  border-left: 3px solid var(--error-rule); font-size: 14px;
}
.error p, .error ul { margin: 0 0 6px; }

/* ---- Two-column layout ---- */

.layout {
  display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 36px;
  margin-top: 16px; align-items: start;
}

/* ---- Area list ---- */

.areas summary { cursor: pointer; }
.areas summary h2 { display: inline; font-size: 15px; margin: 0; }
.areas summary .muted { font-size: 13px; }
.area-actions { margin: 8px 0 4px; font-size: 13px; color: var(--muted); }

.area-group { border: 0; margin: 12px 0 0; padding: 0; min-width: 0; }
.area-group legend {
  width: 100%; padding: 0 0 3px; margin-bottom: 3px;
  border-bottom: 1px solid var(--rule); font-size: 13px; font-weight: 600; color: #3d444d;
}
.group-actions { float: right; font-weight: normal; font-size: 12px; color: var(--faint); }

.area-row {
  display: grid; grid-template-columns: 18px 1fr; column-gap: 6px; align-items: baseline;
  padding: 1px 0; font-size: 14px;
}
.area-row input { margin: 0; position: relative; top: 2px; accent-color: var(--link); }
.area-row label { cursor: pointer; }
.area-row.off-default label { color: var(--muted); }
.area-note { grid-column: 2; margin: 0 0 4px; font-size: 12px; line-height: 1.4; color: var(--muted); }

/* ---- Results ---- */

.status { margin: 0 0 8px; font-size: 14px; color: var(--muted); min-height: 21px; }

.table-scroll { overflow-x: auto; }

table.ranking {
  width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums;
}
table.ranking.stale tbody { opacity: 0.45; }
.ranking thead th {
  position: sticky; top: 0; background: #fff; z-index: 1;
  padding: 6px 8px; border-bottom: 2px solid var(--rule-strong);
  text-align: left; font-size: 13px; font-weight: 600; color: #3d444d; white-space: nowrap;
}
.ranking td { padding: 4px 8px; border-bottom: 1px solid var(--rule); vertical-align: baseline; }
.ranking tbody th { padding: 4px 8px; border-bottom: 1px solid var(--rule); text-align: left; font-weight: 400; }
.ranking tbody tr.inst-row:nth-child(even of .inst-row) { background: var(--stripe); }
.ranking tbody tr.inst-row:hover { background: var(--hover); }
.ranking .num { text-align: right; white-space: nowrap; }
.ranking th.num { text-align: right; }
.ranking .rank { width: 3.5em; color: var(--muted); }
.ranking .score { font-weight: 600; }

button.inst {
  padding: 0; border: 0; background: none; text-align: left; font-size: 15px;
  color: var(--text); cursor: pointer; line-height: inherit;
}
button.inst:hover { background: none; color: var(--link); }
.tri { display: inline-block; width: 1.1em; color: var(--faint); font-size: 12px; }
.cc { margin-left: 4px; font-size: 12px; color: var(--faint); }

tr.detail > td { padding: 4px 8px 12px; background: #fff; }
table.breakdown { border-collapse: collapse; font-size: 13px; min-width: 340px; margin-left: 1.1em; }
table.breakdown caption { text-align: left; padding: 2px 0 4px; color: var(--muted); }
table.breakdown th, table.breakdown td { padding: 2px 10px 2px 0; border-bottom: 1px solid #eef1f4; text-align: left; font-weight: normal; }
table.breakdown thead th { color: var(--muted); border-bottom: 1px solid var(--rule); }
table.breakdown .num { text-align: right; padding-left: 16px; }
table.breakdown tr.zero { color: var(--faint); }

.pager { margin: 14px 0 0; display: flex; gap: 16px; align-items: center; }

/* ---- Methodology / prose pages ---- */

.prose > * { max-width: 76ch; }
.prose p, .prose li { margin: 0 0 10px; }
.prose ul, .prose ol { padding-left: 22px; }
.prose code { font-size: 13px; background: var(--stripe); padding: 1px 4px; border-radius: 3px; }
.formula { margin: 10px 0 14px; padding: 8px 12px; background: var(--stripe); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 14px; overflow-x: auto; }
.toc { font-size: 14px; }

table.venues { border-collapse: collapse; width: 100%; font-size: 14px; margin: 6px 0 18px; }
table.venues th, table.venues td { padding: 4px 8px; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
table.venues thead th { border-bottom: 2px solid var(--rule-strong); font-size: 13px; color: #3d444d; }
table.venues td.kind, table.venues td.status { white-space: nowrap; color: var(--muted); }

/* ---- Responsive ---- */

@media (max-width: 899px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .areas details { border: 1px solid var(--rule); padding: 8px 12px; }
  #area-groups { columns: 2 260px; column-gap: 28px; }
  .area-group { break-inside: avoid; }
  .field-actions { margin-left: 0; }
}

@media (max-width: 599px) {
  .wrap { padding: 0 12px; }
  h1 { font-size: 21px; margin-top: 16px; }
  .lede { font-size: 14px; }
  .filters { gap: 8px 12px; }
  .field-grow { flex-basis: 100%; max-width: none; }
  #region { min-width: 0; width: 100%; max-width: none; }
  .field:first-child { flex-basis: 100%; }
  .ranking .opt { display: none; }
  .ranking td, .ranking thead th { padding: 4px 5px; }
  button.inst { font-size: 14px; }
  table.breakdown { min-width: 0; margin-left: 0; }
}

@media print {
  .site-header nav, .filters, .areas, .pager, .skip, .notices:empty { display: none; }
  .layout { display: block; }
  table.ranking.stale tbody { opacity: 1; }
  .ranking thead th { position: static; }
  a { color: inherit; }
}