:root {
  color-scheme: light;
  --ink: #17211b;
  --muted: #627069;
  --paper: #f4f2e9;
  --card: #fffdf7;
  --line: #d6d8cd;
  --green: #176b4d;
  --green-dark: #0d3f2d;
  --lime: #d9f99d;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--paper); }
a { color: inherit; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.hero {
  padding: 72px 0 52px;
  color: #f8fbf4;
  background:
    radial-gradient(circle at 80% 10%, rgb(217 249 157 / 24%), transparent 30%),
    var(--green-dark);
  border-bottom: 6px solid var(--lime);
}
.eyebrow { font-size: .78rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; color: var(--lime); }
h1 { max-width: 900px; margin: 22px 0 18px; font-size: clamp(3rem, 8vw, 6.8rem); line-height: .91; letter-spacing: -.065em; }
.lede { max-width: 700px; margin: 0; color: #cbd8d0; font-size: clamp(1.05rem, 2vw, 1.35rem); line-height: 1.55; }
.stats { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 44px; }
.stats div { min-width: 150px; padding: 14px 18px; border: 1px solid rgb(255 255 255 / 20%); border-radius: 12px; background: rgb(255 255 255 / 7%); }
.stats strong, .stats span { display: block; }
.stats strong { font-size: 1.4rem; }
.stats span { margin-top: 2px; color: #aebeb5; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; }

main { padding-block: 42px 80px; }
.repo-lookup { margin-bottom: 32px; padding-bottom: 30px; border-bottom: 1px solid var(--line); }
.repo-lookup h2 { margin: 0; font-size: 1.5rem; letter-spacing: -.025em; }
.repo-lookup p { max-width: 72ch; margin: 10px 0 18px; color: var(--muted); line-height: 1.5; }
.repo-lookup label { display: block; margin-bottom: 8px; font-size: .85rem; font-weight: 650; }
.lookup-inputs { display: flex; gap: 10px; max-width: 740px; }
.lookup-inputs input { min-width: 0; }
button { padding: 10px 18px; min-height: 44px; border: 1px solid var(--green-dark); border-radius: 9px; color: #fff; background: var(--green-dark); font: inherit; font-weight: 650; white-space: nowrap; cursor: pointer; }
button:hover { background: var(--green); }
button:focus-visible, summary:focus-visible, a:focus-visible { outline: 3px solid var(--green); outline-offset: 4px; }
#lookup-status:empty { display: none; }
.lookup-results { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 24px; max-height: 320px; overflow-y: auto; margin: 18px 0 0; padding: 4px 4px 4px 22px; font-size: .9rem; overflow-wrap: anywhere; }
.lookup-results[hidden] { display: none; }
.coverage-help { margin-bottom: 20px; color: var(--muted); font-size: .85rem; line-height: 1.6; }
.coverage-help summary { width: fit-content; color: var(--green-dark); cursor: pointer; }
.coverage-help p { max-width: 78ch; }
.coverage-unavailable { margin: 12px 0 0; color: var(--muted); font-size: .75rem; }
.controls { display: grid; grid-template-columns: minmax(250px, 2fr) repeat(3, minmax(140px, 1fr)); gap: 12px; padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: var(--card); box-shadow: 0 12px 35px rgb(31 50 39 / 6%); }
label span { display: block; margin: 0 0 7px 2px; color: var(--muted); font-size: .74rem; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; }
input, select { width: 100%; min-height: 44px; padding: 10px 12px; color: var(--ink); background: #fff; border: 1px solid var(--line); border-radius: 9px; font: inherit; }
input:focus, select:focus { outline: 3px solid rgb(23 107 77 / 18%); border-color: var(--green); }
.result-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin: 42px 0 16px; }
.result-heading h2 { margin: 0; font-size: 1.8rem; letter-spacing: -.03em; }
.result-heading p { margin: 0; color: var(--muted); }
.catalog { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.index-card { display: flex; flex-direction: column; min-height: 290px; padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); transition: transform .15s ease, box-shadow .15s ease; }
.index-card:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgb(31 50 39 / 9%); }
.index-card h3 { margin: 0; font-size: 1rem; overflow-wrap: anywhere; }
.index-card h3 a { text-decoration-color: #9fb9aa; text-underline-offset: 3px; }
.description { display: -webkit-box; min-height: 66px; margin: 14px 0 18px; overflow: hidden; color: var(--muted); font-size: .9rem; line-height: 1.55; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; padding-top: 14px; border-top: 1px solid var(--line); }
.metrics strong, .metrics span { display: block; }
.metrics strong { font-size: 1.05rem; }
.metrics span { color: var(--muted); font-size: .68rem; }
.meta { display: flex; justify-content: space-between; gap: 8px; margin-top: auto; padding-top: 18px; color: var(--muted); font-size: .72rem; }
.topics { display: flex; flex-wrap: wrap; gap: 5px; margin: 12px 0 0; padding: 0; list-style: none; }
.topics li { padding: 4px 7px; color: var(--green-dark); background: #e3eedf; border-radius: 999px; font-size: .65rem; }
.empty { padding: 60px 20px; text-align: center; color: var(--muted); }
footer { padding: 28px 0; color: #bdcac2; background: var(--green-dark); }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; font-size: .8rem; }
.footer-inner p { margin: 0; }
.footer-inner nav { display: flex; gap: 18px; }

@media (max-width: 900px) {
  .controls { grid-template-columns: repeat(2, 1fr); }
  .search-control { grid-column: 1 / -1; }
  .catalog { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .shell { width: min(100% - 24px, 1180px); }
  .hero { padding-top: 48px; }
  .controls, .catalog { grid-template-columns: 1fr; }
  .search-control { grid-column: auto; }
  .lookup-inputs { flex-direction: column; }
  .lookup-results { grid-template-columns: 1fr; }
  .result-heading, .footer-inner { align-items: start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  .index-card { transition: none; }
}