:root {
  --paper: #f4f0e6;
  --ink: #1c1914;
  --muted: #5f584c;
  --line: #ddd4c4;
  --card: #fffdf8;
  --pess: #8a5a12;
  --base: #1d4f46;
  --opt: #16382a;
  --shadow: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.5;
}

h1, h2, h3 {
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

h1 { font-size: clamp(40px, 6vw, 72px); margin: 0 0 16px; }
h2 { font-size: clamp(28px, 3vw, 40px); margin: 0 0 10px; }
h3 { font-size: 22px; margin: 0 0 12px; }

a { color: inherit; }

.top {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 16px;
  padding: 14px 28px;
  background: rgba(244, 240, 230, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.brand {
  font-family: "Iowan Old Style", Palatino, Georgia, serif;
  font-size: 20px;
  text-decoration: none;
}

nav { display: flex; flex-wrap: wrap; gap: 12px 18px; }

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

nav a:hover { color: var(--ink); }

main { max-width: 1120px; margin: 0 auto; padding: 0 28px 64px; }

.hero { padding: 72px 0 40px; }

.kicker {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.lede {
  max-width: 640px;
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 19px;
}

.hero-stats, .metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.metrics { grid-template-columns: repeat(4, 1fr); margin-bottom: 28px; }

.stat {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 16px 16px 14px;
}

button.stat, button.card {
  width: 100%;
  appearance: none;
  text-align: left;
  cursor: pointer;
}

.stat b {
  display: block;
  font-family: "Iowan Old Style", Palatino, Georgia, serif;
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.03em;
}

.stat span { color: var(--muted); font-size: 13px; }

.band {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  padding: 36px 0 12px;
  border-top: 1px solid var(--line);
}

.band p, .section-head p, .caption { color: var(--muted); }

.terms { margin: 0; }

.terms div {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.terms dt { color: var(--muted); font-size: 14px; }
.terms dd { margin: 0; }

section { padding-top: 48px; }

.section-head { max-width: 680px; margin-bottom: 22px; }
.section-head p { margin: 0; }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.card {
  text-align: left;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 18px 18px 16px;
  cursor: pointer;
  color: inherit;
  font: inherit;
}

.card[aria-selected="true"] { border-color: var(--ink); }

.card .tag {
  display: block;
  margin-bottom: 18px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card strong {
  display: block;
  font-family: "Iowan Old Style", Palatino, Georgia, serif;
  font-size: 34px;
  font-weight: 500;
  letter-spacing: -0.03em;
}

.card em {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-style: normal;
  font-size: 14px;
}

.card.pess .tag { color: var(--pess); }
.card.base .tag { color: var(--base); }
.card.opt .tag { color: var(--opt); }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 28px;
}

.source {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.source span { color: var(--muted); }
.source b { font-weight: 600; white-space: nowrap; }

.caption { font-size: 13px; margin: -4px 0 8px; }

.chart { width: 100%; height: auto; display: block; }
.chart text { font-family: "Avenir Next", Helvetica, Arial, sans-serif; }

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

table { width: 100%; border-collapse: collapse; font-size: 14px; }

th, td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th { color: var(--muted); font-weight: 500; font-size: 12px; }
td.num, th.num { text-align: right; }
tr.total td { font-weight: 600; }

.phases {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.phase {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 16px;
}

.phase b { display: block; margin-bottom: 8px; }
.phase span { color: var(--muted); font-size: 14px; }

.disclaimer {
  margin-top: 20px;
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
}

.disclaimer p { max-width: 760px; color: var(--muted); }

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px 28px;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--line);
}

@media (max-width: 860px) {
  .hero-stats, .metrics, .cards, .phases, .band, .split, footer {
    grid-template-columns: 1fr;
    display: grid;
  }
  .top { padding: 12px 16px; }
  nav { gap: 12px; }
  main { padding: 0 16px 48px; }
  .hero { padding-top: 40px; }
  .terms div { grid-template-columns: 1fr; gap: 2px; }
}