:root {
  color-scheme: light;
  --ink: #17211d;
  --muted: #637069;
  --paper: #f4f0e8;
  --card: #fffdf8;
  --line: #d8d2c5;
  --accent: #b3422f;
  --forest: #193d35;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 8%, rgb(179 66 47 / 14%), transparent 28rem),
    linear-gradient(135deg, var(--paper), #ebe5d8);
}

main {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0 96px;
}

header { max-width: 900px; }

.brand-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 72px;
}

.brand-bar a { color: var(--forest); font-size: 0.8rem; font-weight: 750; }
.brand-bar .brand {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.035em;
  text-decoration: none;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1, h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: -0.035em;
}

h1 { font-size: clamp(2.65rem, 7.5vw, 5.45rem); line-height: 0.96; }
h2 { font-size: clamp(1.65rem, 3.6vw, 2.45rem); }

.lede {
  max-width: 690px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.7;
}

.coverage {
  display: grid;
  grid-template-columns: minmax(300px, 1.1fr) minmax(260px, 0.9fr);
  gap: 34px;
  align-items: end;
  margin: 50px 0 18px;
  padding: 28px 32px;
  border-radius: 8px;
  color: #f6f3ea;
  background: var(--forest);
}

.coverage .eyebrow { color: #e18b76; }
.coverage h2 { font-size: clamp(1.55rem, 3vw, 2.2rem); }
.coverage > p { margin: 0; color: #d7dfdb; line-height: 1.6; }

.controls {
  display: flex;
  align-items: end;
  gap: 1rem;
  margin: 1.25rem 0;
}

.controls div { display: grid; gap: 0.45rem; }
.controls label { font-size: 0.78rem; font-weight: 700; }

.controls select {
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: var(--paper);
  color: inherit;
  font: inherit;
  padding: 0.5rem 2rem 0.5rem 0.65rem;
}

.metadata {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  overflow: hidden;
  margin: 0 0 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.metadata div { min-width: 0; padding: 18px; background: rgb(255 253 248 / 82%); }
.metadata dt {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.metadata dd { margin: 8px 0 0; font-size: 0.9rem; font-weight: 700; overflow-wrap: anywhere; }

.ranking-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  box-shadow: 0 24px 70px rgb(38 44 40 / 10%);
}

.card-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  padding: 30px 34px;
  border-bottom: 1px solid var(--line);
}

.count { margin: 0; color: var(--muted); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }

th, td {
  padding: 18px 34px;
  border-bottom: 1px solid #e8e3d9;
  text-align: left;
}

th {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

td:first-child { width: 90px; color: var(--accent); font-weight: 800; }
.numeric { text-align: right; }
tbody tr:hover:not(.paper-detail) { background: #faf6ee; }

.university-button {
  padding: 0;
  border: 0;
  color: var(--ink);
  background: transparent;
  font: inherit;
  font-weight: 750;
  text-align: left;
  text-decoration: underline;
  text-decoration-color: #c9c1b2;
  text-underline-offset: 4px;
  cursor: pointer;
}
.university-button::after { content: " +"; color: var(--accent); }
.university-button[aria-expanded="true"]::after { content: " −"; }

.paper-detail td { padding-top: 0; background: #f8f4eb; }
.paper-list { margin: 0; padding: 17px 20px 20px 54px; color: var(--muted); }
.conference-breakdown {
  margin: 0;
  padding: 18px 20px 0;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}
.paper-list li { padding: 5px 0; }
.paper-list a { color: var(--forest); }
.paper-list .doi {
  margin-left: 10px;
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.paper-list .publication {
  margin-left: 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.status { margin: 0; padding: 26px 34px; color: var(--muted); text-align: center; }

.methodology {
  margin-top: 22px;
  padding: 42px 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgb(255 253 248 / 76%);
}

.methodology-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 42px;
  margin-top: 24px;
  color: var(--muted);
  line-height: 1.7;
}

.methodology-grid p { margin: 0 0 16px; }
.caveat {
  margin: 16px 0 0;
  padding: 20px 22px;
  border-left: 4px solid var(--accent);
  color: var(--ink);
  background: #f4ede2;
  line-height: 1.65;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 0.76rem;
}

footer span:first-child { color: var(--forest); font-weight: 800; }

@media (max-width: 820px) {
  .metadata { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  main { padding-top: 44px; }
  .brand-bar { margin-bottom: 48px; }
  .coverage { grid-template-columns: 1fr; }
  .methodology-grid { grid-template-columns: 1fr; gap: 0; }
  .card-heading, th, td { padding-left: 20px; padding-right: 20px; }
}

@media (max-width: 480px) {
  .metadata { grid-template-columns: 1fr; }
  .controls { align-items: stretch; flex-direction: column; }
  .controls select { width: 100%; }
  footer { flex-direction: column; }
}