:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel-2: #1c232c;
  --border: #2a323d;
  --border-soft: #222a33;
  --text: #e6edf3;
  --muted: #8b97a5;
  --muted-2: #6a7480;
  --accent: #4493f8;
  --accent-soft: #1f6feb33;
  --green: #3fb950;
  --lime: #b8cc3a;
  --amber: #d29922;
  --red: #f85149;
  --grey: #6a7480;
  --local: #d29922;
  --openai: #3fb950;
  --claude_code: #a371f7;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ── top bar ─────────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 16px;
  padding: 14px 24px;
  background: rgba(14,17,22,.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.topbar h1 { font-size: 17px; margin: 0; font-weight: 600; }
.topbar .sub { color: var(--muted); font-size: 13px; }
.topbar .spacer { flex: 1; }
.topbar a.back { color: var(--muted); font-size: 14px; }
.topbar a.back:hover { color: var(--text); }

.reports { display: flex; gap: 8px; align-items: center; }
.report-btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12.5px; padding: 5px 11px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--panel-2);
  color: var(--text); white-space: nowrap;
}
.report-btn:hover { border-color: var(--accent); text-decoration: none; background: var(--panel); }
.report-btn .rdot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.report-btn .rdot.local { background: var(--local); }
.report-btn .rdot.openai { background: var(--openai); }
.report-btn .ext { color: var(--muted-2); font-size: 11px; }

/* ── index page ──────────────────────────────────────────── */
.lede { color: var(--muted); margin: 18px 0 30px; max-width: 760px; }
.lede code { font-family: var(--mono); font-size: 13px; background: var(--panel-2); padding: 1px 5px; border-radius: 4px; }

.band { margin-bottom: 38px; }
.band-head {
  display: flex; align-items: baseline; gap: 12px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px; margin-bottom: 18px;
}
.band-head h2 { margin: 0; font-size: 20px; }
.band-head .count { color: var(--muted); font-size: 13px; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(248px, 1fr)); gap: 14px; }

.card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: border-color .12s, transform .12s, background .12s;
}
.card:hover { border-color: var(--accent); background: var(--panel-2); text-decoration: none; transform: translateY(-2px); }
.card .row1 { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.card .repo-id { font-family: var(--mono); font-size: 16px; font-weight: 600; color: var(--text); }
.card .year { color: var(--muted-2); font-size: 12px; }
.card .runs { display: flex; gap: 6px; margin: 12px 0 14px; flex-wrap: wrap; }
.card .cta { font-size: 13px; color: var(--accent); display: flex; align-items: center; gap: 5px; }
.card.single .cta { color: var(--muted); }

.grade {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 14px;
  min-width: 38px; text-align: center;
  padding: 3px 8px;
  border-radius: 6px;
  color: #08110a;
}
.grade.na { background: var(--panel-2); color: var(--muted-2); border: 1px solid var(--border); }
.grade-note { color: var(--amber); font-size: 11px; margin-top: 8px; }

.chip {
  font-size: 11px; font-family: var(--mono);
  padding: 2px 8px; border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--muted);
}
.chip.run { border-color: transparent; color: #0b0f14; font-weight: 600; }
.chip.run.local { background: var(--local); }
.chip.run.openai { background: var(--openai); }
.chip.run.claude_code { background: var(--claude_code); }

/* ── compare / repo view ─────────────────────────────────── */
.cols {
  display: flex;
  gap: 0;
  height: calc(100vh - 57px);
  overflow-x: auto;
  align-items: stretch;
}
.col {
  flex: 1 1 0;
  min-width: 400px;
  height: 100%;
  overflow-y: auto;
  border-right: 1px solid var(--border);
  scroll-behavior: smooth;
}
.col:last-child { border-right: none; }
.cols.single .col { min-width: 0; max-width: 920px; margin: 0 auto; border-right: none; }

.col-head {
  position: sticky; top: 0; z-index: 5;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 13px 18px;
}
.col-head .ttl { display: flex; align-items: baseline; gap: 8px; }
.col-head .dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.col-head .dot.local { background: var(--local); }
.col-head .dot.openai { background: var(--openai); }
.col-head .dot.claude_code { background: var(--claude_code); }
.col-head .name { font-weight: 600; font-size: 15px; }
.col-head .model { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.col-head .price { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 9px; }
.col-head .price .m { font-size: 12px; color: var(--muted); }
.col-head .price .m b { color: var(--text); font-family: var(--mono); font-weight: 600; }
.col-head .price .m.cost b { color: var(--green); }

.col-body { padding: 6px 18px 80px; }

/* sections */
details.sec { border-bottom: 1px solid var(--border-soft); }
details.sec > summary {
  cursor: pointer; list-style: none;
  padding: 13px 2px; font-weight: 600; font-size: 14px;
  display: flex; align-items: center; gap: 8px;
  user-select: none;
}
details.sec > summary::-webkit-details-marker { display: none; }
details.sec > summary .caret { color: var(--muted-2); font-size: 11px; transition: transform .12s; }
details.sec[open] > summary .caret { transform: rotate(90deg); }
details.sec > summary .n { color: var(--muted-2); font-weight: 400; font-size: 12px; font-family: var(--mono); }
.sec-body { padding: 2px 2px 16px; }
.empty { color: var(--muted-2); font-style: italic; font-size: 13px; padding: 4px 0 8px; }

/* bullet lists */
ul.bullets { margin: 0; padding: 0; list-style: none; }
ul.bullets li { position: relative; padding: 6px 0 6px 18px; font-size: 13.5px; color: var(--text); border-bottom: 1px solid var(--border-soft); }
ul.bullets li:last-child { border-bottom: none; }
ul.bullets li::before { content: "▸"; position: absolute; left: 0; color: var(--muted-2); }
.verif { font-size: 10px; font-family: var(--mono); padding: 1px 5px; border-radius: 4px; margin-left: 6px; vertical-align: middle; }
.verif.verified { background: #1f6f2e; color: #c6f6d5; }
.verif.unverified { background: var(--panel-2); color: var(--muted-2); }
.verif.contradicted { background: #6e1f1f; color: #ffd0cd; }

/* services */
.svc { border: 1px solid var(--border-soft); border-radius: 8px; padding: 10px 12px; margin-bottom: 8px; background: var(--panel); }
.svc .h { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.svc .h .nm { font-family: var(--mono); font-weight: 600; font-size: 13.5px; }
.svc .h .meta { font-size: 11px; color: var(--muted-2); font-family: var(--mono); }
.svc .resp { font-size: 12.5px; color: var(--muted); margin: 6px 0 0; }
.svc .deps { font-size: 11.5px; color: var(--muted-2); margin-top: 6px; }
.svc .deps b { color: var(--muted); font-weight: 500; }

/* endpoints */
.ep-svc { margin-bottom: 10px; }
.ep-svc .ep-svc-name { font-family: var(--mono); font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.ep { display: flex; gap: 8px; align-items: baseline; padding: 2px 0; font-family: var(--mono); font-size: 12.5px; }
.ep .verb { font-weight: 700; min-width: 52px; font-size: 11px; padding: 1px 0; }
.ep .verb.GET { color: var(--green); }
.ep .verb.POST { color: var(--accent); }
.ep .verb.PUT, .ep .verb.PATCH { color: var(--amber); }
.ep .verb.DELETE { color: var(--red); }
.ep .path { color: var(--text); word-break: break-all; }
.ep .extra { color: var(--muted-2); }

/* messaging */
.msg { font-size: 12.5px; padding: 5px 0; border-bottom: 1px solid var(--border-soft); }
.msg:last-child { border-bottom: none; }
.msg .flow { font-family: var(--mono); }
.msg .flow .arrow { color: var(--accent); }
.msg .ch { color: var(--muted); font-size: 11.5px; display: block; margin-top: 2px; }

/* diagrams */
.diagram-wrap { margin: 8px 0 16px; }
.diagram-wrap .dlabel { font-size: 12px; color: var(--muted); margin-bottom: 5px; font-weight: 600; }
img.diagram {
  max-width: 100%;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  cursor: zoom-in;
  display: block;
}

/* use case bar — wrapped horizontal row of buttons */
.uc-bar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.uc-btn {
  font-size: 12px; padding: 6px 10px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--panel-2);
  color: var(--muted); cursor: pointer; text-align: left;
  font-family: var(--sans); line-height: 1.3;
}
.uc-btn:hover { border-color: var(--accent); color: var(--text); }
.uc-btn.active { background: var(--accent-soft); border-color: var(--accent); color: var(--text); font-weight: 600; }
.uc-panel .uc-title { font-size: 14px; font-weight: 600; margin: 4px 0 2px; }
.uc-panel .uc-meta { font-size: 12px; color: var(--muted-2); margin-bottom: 6px; }
.uc-panel .uc-desc { font-size: 13px; color: var(--muted); margin-bottom: 10px; }

/* lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,.85);
  display: none;
  padding: 24px; cursor: zoom-out;
  overflow: auto;
}
.lightbox.open { display: flex; }
/* margin:auto (not align/justify center) so tall images stay fully scrollable — flex
   centering clips and makes the overflowing top unreachable. */
.lightbox img { background: #fff; border-radius: 8px; max-width: none; margin: auto; }
.lightbox .hint { position: fixed; top: 16px; right: 20px; color: var(--muted); font-size: 13px; }

/* loading / error */
.status { padding: 60px 24px; text-align: center; color: var(--muted); }
.status.err { color: var(--red); }