:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #14171c;
  --muted: #5d6672;
  --line: #dfe3e9;
  --accent: #12603f;
  --warn: #8a5a00;
  --err: #a11b1b;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --panel: #161a20;
    --ink: #e7eaee;
    --muted: #98a2b0;
    --line: #262c35;
    --accent: #3ddc97;
    --warn: #e0a83a;
    --err: #ff7b72;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.bar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 20px; border-bottom: 1px solid var(--line); background: var(--panel);
  position: sticky; top: 0; z-index: 5; flex-wrap: wrap;
}
.brand strong { font-size: 16px; letter-spacing: -0.01em; }
.brand .sub { display: block; color: var(--muted); font-size: 12.5px; }
.badge {
  font: 600 12.5px/1 var(--mono); padding: 8px 12px; border-radius: 999px;
  border: 1px solid var(--line); background: transparent; color: var(--muted); cursor: pointer;
}
.badge::before { content: "● "; }
.badge-native { color: var(--accent); border-color: currentColor; }
.badge-polyfill { color: var(--warn); border-color: currentColor; }
.badge-unavailable { color: var(--err); border-color: currentColor; }
main { max-width: 860px; margin: 0 auto; padding: 24px 20px 8px; }
.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 20px; margin-bottom: 18px;
}
h1 { font-size: 22px; margin: 0 0 10px; letter-spacing: -0.02em; }
h2 { font-size: 15px; margin: 0 0 10px; letter-spacing: -0.01em; }
p { margin: 0 0 10px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
code { font-family: var(--mono); font-size: 12.5px; }
.toollist { list-style: none; margin: 0 0 12px; padding: 0; }
.toollist li { padding: 7px 0; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.toollist li:last-child { border-bottom: 0; }
.tag {
  font: 600 10.5px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.04em;
  border: 1px solid var(--line); border-radius: 4px; padding: 3px 5px; margin-left: 6px; color: var(--muted);
}
.tag-write { color: var(--warn); border-color: currentColor; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 10px; }
select, input[type=text] {
  font: 13.5px var(--mono); padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--bg); color: var(--ink);
}
input[type=text] { width: 180px; }
.btn {
  font: 600 13.5px system-ui, sans-serif; padding: 8px 14px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--accent); background: var(--accent); color: var(--panel);
}
.btn-quiet { background: transparent; color: var(--muted); border-color: var(--line); }
.chip {
  font: 12px var(--mono); padding: 4px 8px; border-radius: 6px; cursor: pointer;
  border: 1px solid var(--line); background: transparent; color: var(--muted);
}
.out {
  font: 12px/1.5 var(--mono); background: var(--bg); border: 1px solid var(--line);
  border-radius: 8px; padding: 12px; max-height: 420px; overflow: auto; margin: 0;
  white-space: pre-wrap; word-break: break-word;
}
.log { list-style: none; margin: 0; padding: 0; font: 12.5px var(--mono); }
.log li { padding: 6px 0; border-bottom: 1px solid var(--line); }
.log li:last-child { border-bottom: 0; }
.log .err { color: var(--err); }
footer {
  max-width: 860px; margin: 0 auto; padding: 8px 20px 40px;
  color: var(--muted); font-size: 12.5px;
}
a { color: inherit; }

/* --- Day 1: shortlist, activity, console fields --- */
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 760px) { .cols { grid-template-columns: 1fr; } }
.shortlist { list-style: none; margin: 0 0 12px; padding: 0; }
.shortlist li {
  position: relative; padding: 9px 28px 9px 0; border-bottom: 1px solid var(--line);
}
.shortlist li:last-child { border-bottom: 0; }
.shortlist li.empty { padding-right: 0; font-size: 13px; }
.sl-main { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; font-size: 14px; }
.sl-main strong { font-family: var(--mono); }
.sl-meta { margin-top: 2px; }
.tag-agent { color: var(--accent); border-color: currentColor; }
.x {
  position: absolute; right: 0; top: 8px; border: 0; background: none; cursor: pointer;
  color: var(--muted); font-size: 18px; line-height: 1; padding: 2px 4px;
}
.x:hover { color: var(--err); }
@keyframes flash { from { background: color-mix(in srgb, var(--accent) 22%, transparent); } to { background: transparent; } }
.shortlist li.flash { animation: flash 900ms ease-out; }
.argfields { gap: 8px; margin: 0; }
.field { display: flex; flex-direction: column; gap: 3px; font: 11px var(--mono); color: var(--muted); }
.field input { width: 150px; }
.log .who {
  font: 600 10px/1 var(--mono); text-transform: uppercase; letter-spacing: .05em;
  border-radius: 4px; padding: 3px 5px; border: 1px solid var(--line); color: var(--muted);
}
.log .who.agent { color: var(--accent); border-color: currentColor; }
.log li.empty { border-bottom: 0; }

/* --- rendered result --- */
.result { margin: 12px 0 10px; }
.result:empty { display: none; }
.result-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
.result-head strong { font: 600 20px var(--mono); letter-spacing: -0.01em; }
.coverage {
  margin-left: auto; font: 600 11px var(--mono); color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; padding: 4px 9px;
}
.not-claim {
  font-size: 13px; border-left: 2px solid var(--warn); padding: 6px 0 6px 10px;
  margin: 8px 0; color: var(--ink);
}
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(158px, 1fr)); gap: 8px; margin-top: 10px; }
.cell { border: 1px solid var(--line); border-radius: 9px; padding: 9px 10px; background: var(--bg); }
.cell-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.cell-value { font: 600 17px/1.25 var(--mono); margin: 3px 0 2px; letter-spacing: -0.01em; }
.cell-note { font-size: 10.5px; color: var(--muted); line-height: 1.35; }
.cell-unknown { border-style: dashed; border-color: color-mix(in srgb, var(--warn) 55%, var(--line)); background: transparent; }
.cell-unknown .cell-value { color: var(--warn); font-weight: 500; font-size: 14px; }
.cell-over { border-color: var(--err); }
.cell-over .cell-value { color: var(--err); }
.qual { color: var(--warn); font-size: 12px; vertical-align: super; }
.jsonwrap summary { cursor: pointer; font: 12px var(--mono); color: var(--muted); padding: 4px 0; }
.cell-note {
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- letter --- */
.letter-to { border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; margin-bottom: 10px; background: var(--bg); }
.letter-to-unresolved { border-style: dashed; border-color: color-mix(in srgb, var(--warn) 55%, var(--line)); background: transparent; }
.letter-to-unresolved .cell-value { color: var(--warn); font-size: 14px; }
.letter-subject { font: 600 14px var(--mono); margin: 10px 0 6px; }
.letter-body {
  font: 12.5px/1.6 var(--mono); white-space: pre-wrap; word-break: break-word;
  background: var(--bg); border: 1px solid var(--line); border-radius: 9px;
  padding: 14px; max-height: 340px; overflow: auto; margin: 0 0 8px;
}
.letter-counts { margin-bottom: 10px; }
a.btn { text-decoration: none; display: inline-block; }

/* --- search tally --- */
.tally { display: flex; gap: 8px; margin: 10px 0; flex-wrap: wrap; }
.tally-item {
  flex: 1 1 150px; border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; background: var(--bg);
}
.tally-unknown { border-style: dashed; border-color: color-mix(in srgb, var(--warn) 55%, var(--line)); background: transparent; }
.t-n { display: block; font: 600 24px/1.1 var(--mono); letter-spacing: -0.02em; }
.tally-unknown .t-n { color: var(--warn); }
.t-l { display: block; font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; margin-top: 4px; }
.matchlist { list-style: none; margin: 10px 0 0; padding: 0; }
.matchlist li { padding: 7px 0; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.matchlist li:last-child { border-bottom: 0; }
.matchlist strong { font-family: var(--mono); }
.mini { font: 11px var(--mono); color: var(--muted); border: 1px solid var(--line); border-radius: 5px; padding: 2px 6px; margin-left: 6px; }
.mini-qual { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 50%, var(--line)); }