:root {
  --ink: #16202a;
  --muted: #5f6c78;
  --line: #dde3e9;
  --bg: #ffffff;
  --panel: #f6f8fa;
  --accent: #c1621f;
  --accent-soft: #f3e2d3;
  --max: 1560px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(193, 98, 31, .10), transparent 34rem),
    linear-gradient(180deg, #fbfcfd 0, #fff 22rem);
  color: var(--ink);
  font: 15px/1.55 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 28px; }

header { border-bottom: 1px solid var(--line); padding: 18px 0; background: rgba(255, 255, 255, .76); }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
header h1 { margin: 0; font-size: 19px; font-weight: 650; letter-spacing: -0.2px; }
.paper-link { margin: 0; flex: 0 0 auto; }
.paper-link a {
  display: inline-flex; align-items: center; gap: 6px;
  color: #fff; background: var(--accent); text-decoration: none;
  border: 1px solid var(--accent); border-radius: 4px;
  padding: 6px 11px; font-size: 13px; font-weight: 600;
}
.paper-link a:hover { background: #9f4e18; border-color: #9f4e18; }

nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
nav .wrap { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
nav .wrap::-webkit-scrollbar { display: none; }

.tab {
  appearance: none; border: 0; background: none; cursor: pointer;
  padding: 11px 13px; font: inherit; font-size: 13.5px; color: var(--muted);
  border-bottom: 2px solid transparent; white-space: nowrap;
}
.tab:hover { color: var(--ink); }
.tab.on { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

main { padding: 22px 0 60px; min-height: 70vh; }

.hero {
  position: relative; min-height: calc(100vh - 118px); margin: 4px 0 0;
  border: 1px solid rgba(22, 32, 42, .10); border-radius: 8px; overflow: hidden;
  background: #fff; box-shadow: 0 20px 60px rgba(22, 32, 42, .08);
}
.hero::before {
  content: ""; position: absolute; inset: 0 auto 0 0; z-index: 1; width: min(80rem, 80%);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, .86) 0%, rgba(255, 255, 255, .56) 42%, rgba(255, 255, 255, .18) 74%, rgba(255, 255, 255, 0) 100%),
    linear-gradient(0deg, rgba(255, 255, 255, .10), rgba(255, 255, 255, 0) 42%);
}
.hero-copy { position: relative; z-index: 2; max-width: min(80%, 980px); padding: clamp(28px, 4vw, 54px); }
.eyebrow {
  color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; margin-bottom: 12px;
}
.hero h2 { margin: 0; font-size: clamp(32px, 4.1vw, 56px); line-height: 1.02; letter-spacing: -0.03em; }
.hero p { margin: 16px 0 0; color: var(--muted); font-size: 16px; max-width: 700px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.hero-actions a {
  color: var(--ink); background: #fff; text-decoration: none; border: 1px solid var(--line);
  border-radius: 4px; padding: 8px 12px; font-size: 13px; font-weight: 650;
}
.hero-actions a:hover { border-color: var(--accent); color: var(--accent); }
.hero-actions a.primary { color: #fff; background: var(--accent); border-color: var(--accent); }
.hero-actions a.primary:hover { color: #fff; background: #9f4e18; border-color: #9f4e18; }
.hero-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; max-width: 760px; margin-top: 28px; }
.hero-stats div { border-top: 1px solid rgba(22, 32, 42, .18); padding-top: 10px; }
.hero-stats strong { display: block; font-size: 21px; line-height: 1.1; }
.hero-stats span { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }
.hero-figure { position: absolute; inset: 0; margin: 0; background: #fff; }
.hero-figure img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-figure figcaption { display: none; }

.section-head { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin: 0 0 12px; }
.section-head h2 { margin: 0; font-size: 18px; line-height: 1.2; }
.section-head p { margin: 0; color: var(--muted); font-size: 13px; }

.head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 4px; }
.head h2 { margin: 0; font-size: 18px; font-weight: 640; }
.head .num {
  font-size: 12px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase;
  color: var(--accent); background: var(--accent-soft);
  padding: 3px 8px; border-radius: 4px;
}
.caption { color: var(--muted); font-size: 13.5px; max-width: 1080px; margin: 6px 0 14px; }

.plot { width: 100%; }
.grid { display: grid; gap: 14px; }
.grid.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.note {
  background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--accent);
  padding: 10px 14px; border-radius: 4px; font-size: 13px; color: var(--muted);
  margin: 14px 0;
}
.note b { color: var(--ink); font-weight: 600; }

.ctrls {
  display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
  padding: 9px 0 13px; font-size: 13px; color: var(--muted);
}
.ctrls label { display: flex; gap: 6px; align-items: center; cursor: pointer; }
.ctrls select {
  font: inherit; font-size: 13px; padding: 4px 7px;
  border: 1px solid var(--line); border-radius: 4px; background: #fff; color: var(--ink);
}

.stats { display: flex; gap: 22px; flex-wrap: wrap; margin: 2px 0 12px; }
.stat { min-width: 92px; }
.stat .v { font-size: 17px; font-weight: 640; font-variant-numeric: tabular-nums; }
.stat .k { font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }

table.tbl { border-collapse: collapse; width: 100%; font-size: 12.5px; margin: 6px 0 4px; }
table.tbl th, table.tbl td { text-align: left; padding: 5px 9px; border-bottom: 1px solid var(--line); }
table.tbl th { color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: 11px; letter-spacing: .4px; }
table.tbl td.n { text-align: right; font-variant-numeric: tabular-nums; }
table.tbl tr.weak td { color: #93a0ab; }

.links { display: flex; gap: 10px; flex-wrap: wrap; margin: 10px 0 0; }
.links a {
  font-size: 12.5px; color: var(--ink); text-decoration: none;
  border: 1px solid var(--line); border-radius: 4px; padding: 5px 10px; background: #fff;
}
.links a:hover { border-color: var(--accent); color: var(--accent); }

.loading { color: var(--muted); font-size: 13px; padding: 40px 0; }

.overview { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.card {
  appearance: none; font: inherit; text-align: left; padding: 0;
  border: 1px solid var(--line); border-radius: 6px; overflow: hidden; background: #fff;
  cursor: pointer; transition: border-color .12s, transform .12s;
}
.card:hover, .card:focus-visible { border-color: var(--accent); transform: translateY(-1px); }
.card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.card img { width: 100%; display: block; background: #fff; }
.card .cap { padding: 9px 12px 12px; }
.card .cap .n { font-size: 11px; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: .4px; }
.card .cap .t { font-size: 13px; margin-top: 2px; }

footer { border-top: 1px solid var(--line); padding: 20px 0 40px; color: var(--muted); font-size: 12.5px; }
footer p { margin: 4px 0; }
footer a { color: var(--ink); }
code { background: var(--panel); padding: 1px 5px; border-radius: 3px; font-size: 12px; }

@media (max-width: 1100px) {
  .hero { min-height: calc(100vh - 124px); }
  .hero::before { width: 100%; background: linear-gradient(180deg, rgba(255, 255, 255, .92) 0%, rgba(255, 255, 255, .58) 34%, rgba(255, 255, 255, .08) 64%, rgba(255, 255, 255, 0) 100%); }
  .grid.g3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  header .wrap { align-items: flex-start; flex-direction: column; gap: 12px; }
  .hero { min-height: calc(100vh - 146px); margin-top: 0; }
  .hero-copy { padding: 24px 20px; }
  .hero h2 { font-size: 32px; }
  .hero-stats { grid-template-columns: 1fr; }
  .hero-figure img { object-position: 58% center; }
  .section-head { align-items: flex-start; flex-direction: column; gap: 4px; }
  .grid.g3, .grid.g2 { grid-template-columns: 1fr; }
  .wrap { padding: 0 16px; }
}