:root {
  color-scheme: dark;
  --paper: #141210;
  --ink: #f6f1e8;
  --muted: #b7ad9f;
  --line: rgba(246, 241, 232, 0.14);
  --rust: #e7b59a;
  --card: rgba(255, 250, 244, 0.04);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.5;
  background:
    radial-gradient(900px 420px at 0% -10%, rgba(154, 52, 18, 0.22), transparent 55%),
    radial-gradient(700px 380px at 100% 0%, rgba(31, 107, 74, 0.14), transparent 50%),
    var(--paper);
}
a { color: inherit; }
img, svg { max-width: 100%; height: auto; }
.wrap { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }
header {
  position: sticky;
  top: 0;
  z-index: 2;
  background: rgba(20, 18, 16, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px 0;
}
.mark {
  font-family: Georgia, "Iowan Old Style", Palatino, serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  font-size: 15px;
}
nav { display: flex; gap: 22px; }
nav a { text-decoration: none; color: var(--muted); font-size: 15px; }
nav a[aria-current="page"] { color: var(--ink); }
h1, h2, h3 { font-family: Georgia, "Iowan Old Style", Palatino, serif; font-weight: 600; }
h1 { font-size: clamp(40px, 6vw, 68px); line-height: 1.02; margin: 0 0 16px; }
.lede { font-size: 20px; max-width: 40rem; margin: 0; color: var(--muted); }
.kicker { color: var(--rust); font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; margin: 0 0 12px; }
.hero { padding: 72px 0 28px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card, .study {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  box-shadow: inset 0 1px 0 rgba(255, 250, 244, 0.06);
}
.card h2, .study h2 { margin: 0 0 8px; font-size: 22px; }
.card p, .study p { margin: 0; color: var(--muted); }
.study { display: block; text-decoration: none; }
.study:hover { border-color: rgba(246, 241, 232, 0.4); }
.num { color: var(--rust); font-size: 13px; letter-spacing: 0.08em; }
section { padding: 20px 0 64px; }
section > p { max-width: 42rem; }
.figure {
  background: #f3efe6;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px;
  margin: 12px 0 8px;
}
.figure img { display: block; width: 100%; }
.beat h2 { font-size: 28px; margin: 28px 0 8px; }
footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 28px 0 48px;
  font-size: 14px;
}
@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  .bar { align-items: flex-start; flex-direction: column; }
}