/* 人少的地方 / Small Numbers — one stylesheet, no script on the page. */

:root {
  --bg: #0d1211;
  --panel: #151c1b;
  --panel2: #1c2523;
  --line: #2a3533;
  --ink: #e7eeec;
  --dim: #99a8a4;
  --faint: #6a7975;
  --accent: #5fb98f;
  --warn: #d9a441;
  --bad: #e0705f;
  --r: 12px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.65 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  padding: 0 0 max(28px, env(safe-area-inset-bottom));
  overflow-wrap: anywhere;
}

main { max-width: 800px; margin: 0 auto; padding: 0 14px;
       display: flex; flex-direction: column; gap: 14px; }

.topbar { display: flex; align-items: center; gap: 12px; max-width: 800px;
          margin: 0 auto; padding: max(18px, env(safe-area-inset-top)) 14px 16px; }
.mark { flex: none; width: 40px; height: 40px; border-radius: 11px;
        background: linear-gradient(150deg, #24503d, #16211e);
        border: 1px solid #2f5546; color: var(--accent);
        display: grid; place-items: center; font-size: 19px; line-height: 1; }
.titles { flex: 1; min-width: 0; }
.titles h1 { margin: 0; font-size: 20px; letter-spacing: .03em; }
.titles p { margin: 2px 0 0; color: var(--dim); font-size: 13px; }
.langform { flex: none; }
.lang { padding: 6px 12px; border-radius: 8px; border: 1px solid var(--line);
        background: var(--panel2); color: var(--dim); font: inherit; font-size: 12.5px;
        cursor: pointer; white-space: nowrap; }
.lang:hover { border-color: var(--accent); color: var(--accent); }

.panel { background: var(--panel); border: 1px solid var(--line);
         border-radius: var(--r); padding: 15px 15px 16px; }
.panel h2 { margin: 0 0 10px; font-size: 14px; letter-spacing: .06em;
            color: var(--dim); font-weight: 600; }
.panel.quiet { background: transparent; }
.panel.intro { background: linear-gradient(180deg, #19211f, #151c1b); }

.sub { margin: 0 0 9px; color: #ccd6d3; font-size: 14px; }
.sub:last-child { margin-bottom: 0; }
.sub b { color: var(--ink); }
.tiny { margin: 10px 0 0; color: var(--faint); font-size: 12.5px; line-height: 1.6; }
.tiny b { color: var(--dim); }

code { font: 12px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
       background: #0a0f0e; border: 1px solid var(--line); border-radius: 5px;
       padding: 1px 5px; color: var(--dim); }

.egs { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
       gap: 8px; margin-bottom: 13px; }
.eg { display: flex; flex-direction: column; gap: 2px; text-align: left;
      padding: 9px 11px; background: var(--panel2); border: 1px solid var(--line);
      border-radius: 9px; color: var(--ink); font: inherit; cursor: pointer; }
.eg b { font-size: 13.5px; font-weight: 600; }
.eg span { font-size: 11.5px; color: var(--faint); line-height: 1.45; }
.eg.on { border-color: var(--accent); background: #1a2d26; }
.eg.on b { color: var(--accent); }
.eg:hover { border-color: #3b4a47; }

.lbl { display: block; margin: 0 0 7px; color: var(--dim); font-size: 13px; }
.lbl b { color: var(--ink); }

textarea { width: 100%; background: #0a0f0e; border: 1px solid var(--line);
           border-radius: 9px; color: var(--ink); padding: 10px 11px;
           font: 12.5px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace;
           resize: vertical; }
textarea:focus, input:focus, button:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px; }

.dials { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 10px; margin-top: 11px; }
.dial { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.dial label { font-size: 12px; color: var(--dim); }
.dial input { width: 96px; background: #0a0f0e; border: 1px solid var(--line);
              border-radius: 8px; color: var(--ink); padding: 7px 9px;
              font: inherit; font-size: 14px; }

.go { margin-left: auto; padding: 9px 26px; border: 0; border-radius: 9px;
      background: var(--accent); color: #062015; font: inherit;
      font-size: 15px; font-weight: 700; cursor: pointer; }
.go:hover { background: #79d0a7; }

.ratio { margin-top: 13px; padding: 13px; border-radius: 10px;
         background: var(--panel2); border: 1px solid var(--line); border-left-width: 3px; }
.ratio.same { border-left-color: var(--faint); }
.ratio.moved { border-left-color: var(--warn); }
.ratio > b { font-size: 17px; font-variant-numeric: tabular-nums; }
.ratio .rr { margin-left: 10px; color: var(--dim); font-size: 13px;
             font-variant-numeric: tabular-nums; }
.ratio .say { margin: 6px 0 0; font-size: 13.5px; color: #ccd6d3; }
.ratio .need { margin: 8px 0 0; padding-left: 11px; border-left: 2px solid var(--accent);
               font-size: 13px; color: var(--ink); }

.gate.pass { border-left: 3px solid var(--accent); }
.gate.fail { border-left: 3px solid var(--warn); }
.checks { display: flex; flex-direction: column; gap: 10px; }
/* The threshold sits under the label on a phone, not beside it. An auto third
   column took as much width as the longest sentence in it wanted and left the
   label wrapping one character per line — legible in no browser, and invisible
   in every measurement that only counts pixels of overflow. */
.chk { display: grid; grid-template-columns: 18px minmax(0, 1fr);
       align-items: baseline; gap: 2px 8px; font-size: 13.5px; }
.chk.y .mk { color: var(--accent); }
.chk.n .mk { color: var(--bad); }
.chk .l { min-width: 0; }
.chk .need { grid-column: 2; min-width: 0; color: var(--faint); font-size: 11.5px; }
.chk.y .need { opacity: .5; }

@media (min-width: 680px) {
  .chk { grid-template-columns: 18px minmax(0, 1fr) minmax(0, 42%); }
  .chk .need { grid-column: 3; text-align: right; }
}

.badlist { margin: 0; padding-left: 18px; color: var(--dim); font-size: 13px; }
.badlist li { margin-bottom: 4px; }
.badlist b { color: var(--ink); }
.panel.bad { border-left: 3px solid var(--warn); }

.verdict { border-radius: var(--r); border: 1px solid var(--line);
           border-left-width: 3px; padding: 15px; background: var(--panel); }
.verdict > b { display: block; font-size: 18px; margin-bottom: 5px; }
.verdict .say { margin: 0; color: #ccd6d3; font-size: 13.5px; }
.verdict.ok { border-left-color: var(--accent); }
.verdict.ok > b { color: var(--accent); }
.verdict.bad { border-left-color: var(--bad); }
.verdict.bad > b { color: var(--bad); }
.verdict.na { border-left-color: var(--faint); }
.verdict.na > b { color: var(--dim); }

.funnel { width: 100%; height: auto; display: block; margin: 4px 0 8px; }
.funnel .gl { stroke: #202a28; stroke-width: 1; }
.funnel .gx, .funnel .gy, .funnel .ax { fill: var(--faint); font-size: 11px; }
.funnel .lim { fill: none; stroke-linejoin: round; }
.funnel .lim.l95 { stroke: #3f5f55; stroke-width: 1.5; stroke-dasharray: 4 3; }
.funnel .lim.l998 { stroke: var(--bad); stroke-width: 1.5; opacity: .75; }
.funnel .mean { stroke: var(--accent); stroke-width: 1.5; }
.funnel .meanlab { fill: var(--accent); font-size: 11px; }
.funnel .pt { fill: #7fc0d4; stroke: #0d1211; stroke-width: 1.5; }
.funnel .pt.out95 { fill: var(--warn); }
.funnel .pt.out998 { fill: var(--bad); }
.funnel .ptlab { fill: var(--dim); font-size: 10.5px; }

.scroll { overflow-x: auto; }
.at { border-collapse: collapse; font-size: 12.5px; font-variant-numeric: tabular-nums;
      min-width: 100%; }
.at th, .at td { border-bottom: 1px solid var(--line); padding: 6px 9px;
                 text-align: right; white-space: nowrap; }
.at thead th { color: var(--dim); font-weight: 600; font-size: 11.5px; }
.at .ln { text-align: left; color: var(--ink); font-weight: 600; }
.at td { color: var(--dim); }
.at td.rate { color: var(--ink); font-weight: 600; }
.at td.rng { color: var(--faint); }
.at td.flag { color: var(--warn); font-size: 11px; }
.at tr.out95 td.rate { color: var(--warn); }
.at tr.out998 td.rate, .at tr.out998 td.flag { color: var(--bad); }

.finding { border-left: 2px solid var(--line); background: var(--panel2);
           border-radius: 0 8px 8px 0; padding: 10px 12px; margin-bottom: 8px; }
.finding:last-of-type { margin-bottom: 0; }
.finding > b { display: block; font-size: 13.5px; margin-bottom: 3px; }
.finding p { margin: 0; font-size: 12.5px; color: var(--dim); line-height: 1.6; }
.finding.bad { border-left-color: var(--bad); }
.finding.bad > b { color: var(--bad); }
.finding.warn { border-left-color: var(--warn); }
.finding.warn > b { color: var(--warn); }
.finding.ok { border-left-color: var(--accent); }
.finding.ok > b { color: var(--accent); }

.foot { max-width: 800px; margin: 22px auto 0; padding: 0 14px;
        color: var(--faint); font-size: 11.5px; text-align: center; }

@media (max-width: 430px) {
  .go { margin-left: 0; width: 100%; }
  .dial input { width: 78px; }
  .titles h1 { font-size: 18px; }
}