:root {
  --ink: #3b3b3b;
  --muted: #8a8580;
  --paper: #fbf9f6;
  --card: #ffffff;
  --line: #e6dfd5;
  --beige: #efe8dc;
  --sage: #6f8f76;
  --sage-dark: #4f6b55;
  --sage-light: #f1f4ee;
  --terracotta: #d8704f;
  --terracotta-dark: #b9573a;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

.wrap { max-width: 960px; margin: 0 auto; padding: 0 24px; }

a { color: var(--sage-dark); }

.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100vh;
  min-height: 100svh;
  padding: 56px 0 88px;
  text-align: center;
  background: linear-gradient(180deg, var(--sage-light) 0%, var(--paper) 100%);
  border-bottom: 1px solid var(--line);
}

.hero .wrap { width: 100%; }

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 24px;
  width: 40px;
  height: 40px;
  margin-left: -20px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--card);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: nudge 2s ease-in-out infinite;
}

.scroll-cue svg { width: 20px; height: 20px; fill: none; stroke: var(--sage-dark); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

@keyframes nudge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-cue { animation: none; }
}

#overview { scroll-margin-top: 24px; }

.venue {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--terracotta-dark);
}

h1, h2, h3 { font-family: "Source Serif 4", Georgia, serif; line-height: 1.25; }

h1 { margin: 0; font-size: clamp(32px, 5vw, 46px); }

.subtitle { margin: 10px 0 22px; font-size: clamp(18px, 2.4vw, 22px); color: var(--muted); }

.authors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 26px;
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 500;
}

.authors sup, .affiliations sup, .corresponding sup { font-size: 11px; color: var(--terracotta-dark); }

.affiliations {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2px 20px;
  margin: 0 0 4px;
  font-size: 14.5px;
  color: var(--muted);
}

.corresponding { margin: 0 0 26px; font-size: 13px; color: var(--muted); }

.mail {
  width: 1.15em;
  height: 0.9em;
  vertical-align: -0.1em;
  fill: none;
  stroke: var(--terracotta-dark);
  stroke-width: 1.5;
  stroke-linejoin: round;
}

.buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-bottom: 32px; }

.button {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
}

.button small { font-weight: 500; opacity: .75; font-size: 12px; }

.button:hover { background: var(--sage-dark); }

.button.disabled { background: #b9b3ac; cursor: default; }

.tldr {
  max-width: 760px;
  margin: 0 auto;
  padding: 16px 22px;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--sage);
  border-radius: 10px;
}

main { padding: 32px 24px 16px; }

section { margin: 56px 0; }

h2 {
  margin: 0 0 16px;
  font-size: 28px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--beige);
}

h3.sub { margin: 36px 0 8px; font-size: 21px; }

figure { margin: 24px 0; }

figure img {
  display: block;
  width: 100%;
  height: auto;
  padding: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}

figcaption { margin-top: 10px; font-size: 14.5px; line-height: 1.55; color: var(--muted); }

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

.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }

.card {
  position: relative;
  padding: 20px 22px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.card h3 { margin: 0 0 8px; font-size: 19px; padding-right: 36px; }

.card p { margin: 0; font-size: 15.5px; }

.card .num {
  position: absolute;
  top: 16px;
  right: 18px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--sage-light);
  color: var(--sage-dark);
  font-weight: 700;
  font-size: 14px;
  line-height: 28px;
  text-align: center;
}

.split { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 28px; align-items: center; }

.split figure { margin: 0; }

table { border-collapse: collapse; width: 100%; font-size: 15px; background: var(--card); }

th, td { padding: 8px 12px; border-bottom: 1px solid var(--line); text-align: left; }

th { font-weight: 600; background: var(--sage-light); }

.settings { max-width: 640px; margin: 16px 0 8px; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }

.results td:not(:first-child), .results th:not(:first-child) { text-align: right; white-space: nowrap; }

.results td.indent { padding-left: 28px; }

.results tr.group td { border-top: 2px solid var(--beige); }

.results tr.hl td { background: #fbf4ef; }

.note { font-size: 14.5px; color: var(--muted); }

.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 20px 0; }

.stat {
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--terracotta);
  border-radius: 10px;
}

.stat .value {
  display: block;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--terracotta-dark);
  line-height: 1.1;
}

.stat .label { display: block; margin-top: 6px; font-size: 14px; line-height: 1.45; color: var(--muted); }

.takeaway {
  margin-top: 28px;
  padding: 16px 22px;
  background: var(--sage-light);
  border: 1px solid var(--sage);
  border-radius: 10px;
}

ul { padding-left: 22px; }

footer {
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .cards, .split, .stats { grid-template-columns: 1fr; }
  .hero { padding-top: 44px; padding-bottom: 84px; }
  figure img { padding: 6px; }
}