:root {
  --ink: #111827;
  --muted: #64748B;
  --line: #E2E8F0;
  --paper: #F8FAFC;
  --card: #FFFFFF;
  --cyan: #22D3EE;
  --indigo: #6366F1;
  --violet: #7C3AED;
  --mark: #E0E7FF;
  --ok: #047857;
  --ok-bg: #ECFDF5;
  --err: #B91C1C;
  --radius: 14px;
  --font: Inter, "Avenir Next", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font); }
body { min-height: 100vh; display: flex; flex-direction: column; }
a { color: var(--indigo); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: 100%; max-width: 860px; margin: 0 auto; padding: 0 16px; }

.top { border-bottom: 1px solid var(--line); background: var(--card); }
.top .wrap { display: flex; align-items: center; gap: 16px; height: 64px; }
.top .brand img { height: 40px; display: block; }
.top nav { margin-left: auto; display: flex; gap: 16px; align-items: center; font-size: 14px; color: var(--muted); }
.top nav form { margin: 0; }
.linkish { background: none; border: 0; padding: 0; font: inherit; color: var(--indigo); cursor: pointer; }

.hero { padding: 72px 0 40px; text-align: center; }
.hero img { width: min(520px, 100%); height: auto; }
.hero p { color: var(--muted); font-size: 17px; line-height: 1.55; max-width: 560px; margin: 8px auto 0; }

.searchbar { display: flex; gap: 8px; margin: 24px 0 8px; }
.searchbar input[type=search], .field input {
  flex: 1; min-width: 0; font: inherit; font-size: 16px; padding: 13px 16px;
  border: 1.5px solid var(--line); border-radius: var(--radius); background: var(--card); color: var(--ink);
}
.searchbar input:focus, .field input:focus { outline: none; border-color: var(--indigo); box-shadow: 0 0 0 4px rgba(99,102,241,.15); }
.btn {
  font: inherit; font-weight: 600; font-size: 15px; padding: 0 20px; min-height: 48px; border: 0; cursor: pointer;
  border-radius: var(--radius); color: #fff; background: linear-gradient(135deg, var(--cyan), var(--indigo) 50%, var(--violet));
}
.btn:hover { filter: brightness(1.05); }
.filters { display: flex; flex-wrap: wrap; gap: 16px; font-size: 14px; color: var(--muted); align-items: center; }
.filters input[type=text] { font: inherit; padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px; width: 200px; }

.meta-line { color: var(--muted); font-size: 14px; margin: 20px 0 8px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.results { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.hit { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.hit h3 { margin: 0 0 4px; font-size: 18px; line-height: 1.35; }
.hit .src { font-size: 13px; color: var(--muted); display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.hit p { margin: 8px 0 0; line-height: 1.55; color: #334155; overflow-wrap: anywhere; }
.hit mark { background: var(--mark); color: inherit; border-radius: 3px; padding: 0 2px; }
.badge { font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: var(--ok-bg); color: var(--ok); }
.pager { display: flex; justify-content: space-between; margin: 20px 0 48px; }
.empty { text-align: center; color: var(--muted); padding: 48px 0; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; max-width: 460px; margin: 0 auto; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; font-size: 14px; color: var(--muted); }
.error { color: var(--err); font-size: 14px; margin: 0 0 12px; }
.notice { background: #EEF2FF; border: 1px solid #C7D2FE; color: #3730A3; padding: 12px 14px; border-radius: 10px; font-size: 14px; margin: 16px 0; }

.doc { padding: 40px 0 64px; line-height: 1.65; }
.doc h1 { font-size: 30px; margin: 0 0 8px; }
.doc code { background: #EEF2FF; padding: 1px 6px; border-radius: 6px; font-size: 14px; }
.doc pre { background: var(--ink); color: #E2E8F0; padding: 14px 16px; border-radius: 10px; overflow-x: auto; font-size: 14px; }

footer { margin-top: auto; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
footer .wrap { display: flex; gap: 16px; padding-top: 18px; padding-bottom: 18px; flex-wrap: wrap; }

@media (max-width: 560px) {
  .searchbar { flex-direction: column; }
  .top .brand img { height: 32px; }
  .hero { padding-top: 40px; }
}