:root {
  --bg: #ffffff;
  --ink: #17150f;
  --mute: #8a867c;
  --line: #dcd8cd;
  --accent: #d9481c;
  --wash: rgba(23, 21, 15, .04);
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e0e0d; --ink: #ece9e1; --mute: #7d7a72; --line: #2a2925; --accent: #ff6a3d; --wash: rgba(236, 233, 225, .05);
  }
}
:root[data-theme="dark"] {
  --bg: #0e0e0d; --ink: #ece9e1; --mute: #7d7a72; --line: #2a2925; --accent: #ff6a3d; --wash: rgba(236, 233, 225, .05);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.6 var(--sans); -webkit-font-smoothing: antialiased;
}
main { max-width: 640px; margin: 0 auto; padding: 28px 16px 56px; }

header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 56px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: .04em; }
.brand i { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--mute); position: relative; display: inline-block; }
.brand i::after { content: ""; position: absolute; inset: 2px; border-radius: 50%; background: var(--accent); }
#lang {
  font: 13px var(--mono); color: var(--mute); background: none; border: 1px solid var(--line);
  border-radius: 999px; padding: 3px 12px; cursor: pointer;
}
#lang:hover { color: var(--ink); border-color: var(--mute); }

/* query */
#q { display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--line); margin-bottom: 28px; }
#q:focus-within { border-color: var(--ink); }
#ipin {
  flex: 1; min-width: 0; background: none; border: 0; outline: 0; color: var(--ink);
  font: 15px var(--mono); padding: 10px 0;
}
#ipin::placeholder { color: var(--mute); }
#go { background: none; border: 0; color: var(--accent); font: 600 14px var(--sans); cursor: pointer; padding: 8px 0; }
#go:disabled { opacity: .4; cursor: default; }

/* hero */
.ip {
  font: 500 clamp(26px, 7.4vw, 54px)/1.1 var(--mono); letter-spacing: -.025em; word-break: break-all;
  min-height: 1.1em;
}
.sum { margin: 14px 0 26px; font-size: 18px; line-height: 1.5; min-height: 1.5em; }
.sum b { font-weight: 600; }
.sum .warn { color: var(--accent); }
.sum.err { color: var(--accent); }

.meter { margin: 0 0 8px; }
.track { position: relative; height: 2px; background: var(--line); }
.track::before, .track::after, .track i { content: ""; position: absolute; top: -3px; width: 1px; height: 8px; background: var(--line); }
.track::before { left: 15%; }
.track::after { left: 40%; }
.track i { left: 70%; }
.fill { position: absolute; left: 0; top: -1px; height: 4px; background: var(--ink); width: 0; transition: width .5s cubic-bezier(.2, .8, .2, 1); }
.fill.warn { background: var(--accent); }
.scale { position: relative; height: 26px; }
.pin {
  position: absolute; top: 9px; font: 600 13px var(--mono); color: var(--ink);
  left: clamp(10px, calc(var(--p, 0) * 1%), calc(100% - 10px)); transform: translateX(-50%);
  transition: left .5s cubic-bezier(.2, .8, .2, 1);
}

/* facts */
section { margin-top: 44px; }
h2 { font: 600 12px var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); margin: 0 0 10px; }
dl { margin: 0; }
.row { display: grid; grid-template-columns: 96px 1fr; gap: 4px 16px; padding: 12px 0; border-top: 1px solid var(--line); }
.row:last-child { border-bottom: 1px solid var(--line); }
dt { color: var(--mute); font-size: 13px; padding-top: 1px; }
dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
dd small, .note { color: var(--mute); font-size: 13px; }
dd .mono, .mono { font-family: var(--mono); font-size: 14px; }
dd .flag { color: var(--accent); }
.dots { display: inline-flex; gap: 3px; margin-left: 8px; vertical-align: 1px; }
.dots i { width: 7px; height: 7px; border-radius: 50%; border: 1px solid var(--mute); }
.dots i.on { background: var(--ink); border-color: var(--ink); }
.dots i.off { border-style: dashed; }
.st { display: inline-block; width: 8px; height: 8px; border-radius: 50%; border: 1.5px solid var(--mute); margin-right: 8px; vertical-align: 1px; }
.st.bad { background: var(--accent); border-color: var(--accent); }
.st.ok { background: var(--mute); }
.st.pending { border-style: dotted; animation: spin 1.2s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .st.pending { animation: none; } .fill, .pin { transition: none; } }

/* details */
#more { margin-top: 36px; }
details { border-top: 1px solid var(--line); }
details:last-child { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; list-style: none; padding: 13px 0; font-size: 14px; display: flex; justify-content: space-between; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--mute); font-family: var(--mono); }
details[open] summary::after { content: "–"; }
details > div { padding: 0 0 16px; }
.ev { display: flex; justify-content: space-between; gap: 16px; padding: 5px 0; font-size: 14px; }
.ev .pts { font-family: var(--mono); color: var(--accent); }
.ev.total { border-top: 1px solid var(--line); margin-top: 6px; padding-top: 10px; }
.ev.total .pts { color: var(--ink); }
.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th { text-align: left; color: var(--mute); font-weight: 400; padding: 4px 8px 4px 0; }
.tbl td { padding: 6px 8px 6px 0; border-top: 1px solid var(--line); vertical-align: top; }
.tbl td.mono { font-size: 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font: 12px var(--mono); padding: 2px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--mute); }
.chip.hit { border-color: var(--accent); color: var(--accent); }
.chip.info { color: var(--ink); border-color: var(--mute); }
.chip.err { text-decoration: line-through; opacity: .6; }
.legend { margin: 12px 0 0; }

footer { margin-top: 56px; display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--mute); }
footer a { color: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

@media (max-width: 480px) {
  header { margin-bottom: 36px; }
  .row { grid-template-columns: 72px 1fr; gap: 4px 12px; }
  .sum { font-size: 17px; }
}