:root {
  --cream:      #FEF6F0;
  --cream-deep: #FBE4D5;
  --terracotta: #C8663A;
  --brown:      #AD592D;
  --brown-dark: #8A451F;
  --red:        #BE4637;
  --ink:        #3B2A22;
  --ink-soft:   #6B5447;
  --rule:       #EFD9C9;
  --maxw:       980px;
}

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

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

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: "Source Sans 3", "Source Sans Pro", -apple-system,
               BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- hero ---------- */

.hero { padding: 40px 0 8px; }

.hero-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  margin: 0 auto;
  max-width: 900px;
}

.hero .witch {
  flex: none;
  width: 190px;
  height: auto;
}

.hero-text { text-align: left; }

.kicker {
  margin: 0 0 8px;
  color: var(--terracotta);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.title {
  font-size: 2.7rem;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--brown-dark);
  margin: 0;
}

.hero-row + .authors { margin-top: 26px; }

.hero img {
  display: block;
  width: 100%;
  height: auto;
}

.authors {
  text-align: center;
  font-size: 1.05rem;
  line-height: 2;
  margin: 28px 0 0;
}

.authors a {
  color: var(--brown);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.authors a:hover { border-bottom-color: var(--brown); }

.authors sup {
  color: var(--terracotta);
  font-size: 0.72em;
  padding-left: 1px;
}

.affil {
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.8;
  margin: 10px 0 0;
}

.affil sup {
  color: var(--terracotta);
  font-size: 0.78em;
}

.note {
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.85rem;
  margin: 8px 0 0;
}

/* ---------- buttons ---------- */

.buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin: 28px 0 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 22px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--cream);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.12s ease, background 0.12s ease;
}

.btn:hover {
  background: var(--brown);
  transform: translateY(-1px);
}

.btn[aria-disabled="true"] {
  background: var(--cream-deep);
  color: var(--ink-soft);
  cursor: default;
  pointer-events: none;
}

.btn svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}

/* ---------- sections ---------- */

section { padding: 44px 0; }

section + section { border-top: 1px solid var(--rule); }

h2 {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
  color: var(--brown-dark);
}

h3 {
  font-size: 1.02rem;
  font-weight: 700;
  margin: 32px 0 10px;
  color: var(--ink);
}

p { margin: 0 0 16px; }

.lede {
  font-size: 1.02rem;
  text-align: justify;
  hyphens: auto;
}

figure { margin: 0 0 8px; }

figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: #fff;
}

figcaption {
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.6;
  margin-top: 12px;
}

figcaption b { color: var(--ink); }

/* ---------- highlight cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  margin: 4px 0 0;
}

.card {
  background: var(--cream-deep);
  border-radius: 12px;
  padding: 18px 20px;
}

.card .num {
  display: block;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--brown);
  line-height: 1.2;
}

.card .lbl {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

/* ---------- tables ---------- */

.scroll { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
  margin: 0 0 6px;
}

caption {
  caption-side: top;
  text-align: left;
  font-size: 0.88rem;
  color: var(--ink-soft);
  padding: 0 0 12px;
}

caption b { color: var(--ink); }

th, td {
  padding: 7px 10px;
  text-align: right;
  white-space: nowrap;
}

th:first-child,
td:first-child {
  text-align: left;
  white-space: normal;
}

thead th {
  border-bottom: 1.5px solid var(--ink);
  font-weight: 600;
}

thead tr:first-child th { border-bottom: 1px solid var(--rule); }

tbody tr.group td {
  padding-top: 14px;
  font-style: italic;
  color: var(--ink-soft);
  text-align: left;
}

tbody tr.ours {
  background: var(--cream-deep);
  font-weight: 700;
}

tbody tr.ours td:first-child { color: var(--brown-dark); }

tbody tr:last-child td { border-bottom: 1.5px solid var(--ink); }

td.best { font-weight: 700; }

/* ---------- bibtex ---------- */

pre {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 0.84rem;
  line-height: 1.6;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  margin: 0;
}

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

footer {
  border-top: 1px solid var(--rule);
  padding: 28px 0 44px;
  font-size: 0.85rem;
  color: var(--ink-soft);
  text-align: center;
}

footer a { color: var(--brown); }

@media (max-width: 640px) {
  body { font-size: 17px; }
  .hero-row { flex-direction: column; gap: 10px; }
  .hero-text { text-align: center; }
  .hero .witch { width: 140px; }
  .title { font-size: 1.75rem; }
  .hero { padding-top: 20px; }
  section { padding: 32px 0; }
  h2 { font-size: 1.28rem; }
  table { font-size: 0.8rem; }
  th, td { padding: 6px 7px; }
}