/* aiscan site theme - light/dark via data-theme, no framework. */
:root {
  --bg: #f7f6f3; --panel: #ffffff; --ink: #1c2530; --muted: #5b6b7b;
  --line: #e3e0d8; --accent: #2b6cb0; --accent-ink: #ffffff;
  --band-low: #2f9e44; --band-moderate: #d9a62b;
  --band-elevated: #d97b2b; --band-high: #c25022;
  --mark: #f3efe6; --radius: 10px;
  --mono: ui-monospace, "Cascadia Code", Menlo, Consolas, monospace;
}
[data-theme="dark"] {
  --bg: #14181d; --panel: #1c232b; --ink: #e8e6e1; --muted: #9aa7b4;
  --line: #2c3640; --accent: #5b9bd5; --accent-ink: #10141a;
  --mark: #242c35;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px 80px; }
header.site {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; margin-bottom: 28px; border-bottom: 1px solid var(--line);
}
header.site .logo { font-weight: 700; font-size: 20px; text-decoration: none; color: var(--ink); }
header.site .logo span { color: var(--accent); }
header.site nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 14px; }
header.site nav a:hover { color: var(--ink); }
button.icon { background: none; border: 1px solid var(--line); border-radius: 8px;
  padding: 4px 9px; cursor: pointer; color: var(--ink); font-size: 14px; }

h1 { font-size: 30px; line-height: 1.25; margin: 0 0 8px; }
.sub { color: var(--muted); margin: 0 0 24px; max-width: 640px; }

.panel { background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px; }
textarea#text {
  width: 100%; min-height: 220px; resize: vertical; border: 1px solid var(--line);
  border-radius: 8px; padding: 12px; font: 15px/1.5 inherit; color: var(--ink);
  background: var(--bg);
}
textarea#text:focus { outline: 2px solid var(--accent); border-color: transparent; }
.scanbar { display: flex; align-items: center; gap: 12px; margin-top: 10px; flex-wrap: wrap; }
.scanbar .grow { flex: 1; }
.counter { color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; }
.counter.over { color: var(--band-high); font-weight: 600; }
.chip { border: 1px solid var(--line); background: var(--panel); color: var(--muted);
  border-radius: 999px; padding: 5px 12px; font-size: 13px; cursor: pointer; }
.chip:hover { color: var(--ink); border-color: var(--accent); }
.btn { background: var(--accent); color: var(--accent-ink); border: 0;
  border-radius: 8px; padding: 10px 22px; font-size: 15px; font-weight: 600; cursor: pointer; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.notice { font-size: 13px; color: var(--muted); margin-top: 8px; }
.error { color: var(--band-high); font-size: 14px; margin-top: 10px; }

/* result */
#result { margin-top: 22px; display: none; }
.verdict { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.score-num { font-size: 52px; font-weight: 800; line-height: 1;
  font-variant-numeric: tabular-nums; color: var(--band-low); }
.score-num small { font-size: 15px; font-weight: 600; color: var(--muted); margin-left: 3px; }
.score-num.low { color: var(--band-low); }
.score-num.moderate { color: var(--band-moderate); }
.score-num.elevated { color: var(--band-elevated); }
.score-num.high { color: var(--band-high); }
.verdict-text { display: flex; flex-direction: column; gap: 6px; }
.verdict-label { font-size: 20px; font-weight: 700; margin: 0; }
.badge { align-self: flex-start; border-radius: 6px; padding: 3px 10px; font-size: 12px;
  font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: #fff; }
.badge.low { background: var(--band-low); } .badge.moderate { background: var(--band-moderate); }
.badge.elevated { background: var(--band-elevated); } .badge.high { background: var(--band-high); }
.meter { position: relative; height: 10px; border-radius: 5px; margin: 16px 0 6px;
  background: linear-gradient(to right, var(--band-low) 0 25%, var(--band-moderate) 25% 50%,
    var(--band-elevated) 50% 72%, var(--band-high) 72% 100%); opacity: .9; }
.meter .needle { position: absolute; top: -4px; width: 3px; height: 18px;
  background: var(--ink); border-radius: 2px; }
.meta { color: var(--muted); font-size: 13px; margin: 0 0 4px; }

.fixes { margin: 18px 0 0; padding: 14px 16px; background: var(--mark); border-radius: 8px; }
.fixes h3 { margin: 0 0 8px; font-size: 14px; }
.fixes ul { margin: 0; padding-left: 18px; font-size: 14.5px; }
.fixes li { margin: 3px 0; }
.fixes li.ok { list-style: none; margin-left: -18px; color: var(--band-low); font-weight: 600; }

.breakdown { margin-top: 12px; }
.breakdown > summary { cursor: pointer; color: var(--muted); font-size: 13px; padding: 6px 0;
  list-style: none; }
.breakdown > summary::-webkit-details-marker { display: none; }
.breakdown > summary::before { content: "\25B8  "; }
.breakdown[open] > summary::before { content: "\25BE  "; }
.breakdown > summary:hover { color: var(--ink); }
.sig { border-top: 1px solid var(--line); padding: 9px 0; }
.sig-row { display: flex; align-items: center; gap: 10px; }
.sig .name { width: 200px; font-size: 13px; }
.sig .bar { flex: 1; height: 8px; background: var(--mark); border-radius: 4px; overflow: hidden; }
.sig .bar i { display: block; height: 100%; background: var(--band-elevated); }
.sig .val { width: 44px; text-align: right; font-variant-numeric: tabular-nums;
  font-size: 13px; color: var(--muted); }
.sig .detail { color: var(--muted); font-size: 12.5px; margin: 5px 0 2px 210px; }
.disclaimer { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--line);
  font-size: 12.5px; color: var(--muted); }
.disclaimer a { color: var(--accent); }

/* prose pages */
.prose h2 { margin-top: 34px; } .prose code { font-family: var(--mono); font-size: .92em;
  background: var(--mark); padding: 1px 5px; border-radius: 4px; }
.prose pre { background: var(--mark); padding: 14px; border-radius: 8px; overflow-x: auto;
  font-family: var(--mono); font-size: 13px; }
section.explain { margin-top: 42px; color: var(--muted); font-size: 15px; }
section.explain h2 { color: var(--ink); font-size: 19px; }
section.explain pre { background: var(--mark); padding: 12px 14px; border-radius: 8px;
  overflow-x: auto; font-family: var(--mono); font-size: 13px; margin: 8px 0; }
@media (max-width: 640px) {
  .score-num { font-size: 44px; }
  .sig .name { width: 120px; } .sig .detail { margin-left: 0; }
}