:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --border: #2a2f3a;
  --text: #e6e9ef;
  --muted: #8b93a3;
  --accent: #6ea8fe;
  --pass: #3ddc97;
  --fail: #ff6b6b;
  --warn: #ffb648;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
header {
  border-bottom: 1px solid var(--border);
  padding: 14px 20px;
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}
header h1 { font-size: 16px; margin: 0; letter-spacing: .2px; }
header .tag {
  font: 11px var(--mono);
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
}
header .spacer { flex: 1; }
.wrap { padding: 20px; max-width: 1400px; margin: 0 auto; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 16px;
}
.panel > h2 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel > h2 .hint { text-transform: none; letter-spacing: 0; font-weight: 400; }
label { display: block; font-size: 12px; color: var(--muted); margin: 8px 0 4px; }
input, select, textarea, button {
  font-family: inherit;
  font-size: 13px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 9px;
  width: 100%;
}
textarea { font-family: var(--mono); font-size: 12.5px; resize: vertical; min-height: 120px; line-height: 1.5; }
input:focus, select:focus, textarea:focus { outline: 1px solid var(--accent); border-color: var(--accent); }
button {
  width: auto;
  cursor: pointer;
  background: var(--panel-2);
  transition: border-color .12s, background .12s;
}
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); color: #0b0d12; border-color: var(--accent); font-weight: 600; }
button.primary:hover { filter: brightness(1.1); }
button.ghost { background: transparent; }
button:disabled { opacity: .45; cursor: not-allowed; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.tight { gap: 6px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: var(--mono); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; }
tbody tr:hover { background: var(--panel-2); }
.pill {
  display: inline-block;
  font: 11px var(--mono);
  padding: 1px 6px;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.pill.pass { color: var(--pass); border-color: color-mix(in srgb, var(--pass) 40%, transparent); }
.pill.fail { color: var(--fail); border-color: color-mix(in srgb, var(--fail) 40%, transparent); }
.pill.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.pill.idle { color: var(--muted); }
.score { font: 600 28px var(--mono); }
.score.pass { color: var(--pass); }
.score.fail { color: var(--fail); }
.statgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 12px; }
.stat { background: var(--panel-2); border: 1px solid var(--border); border-radius: 6px; padding: 10px 12px; }
.stat .k { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.stat .v { font: 600 20px var(--mono); margin-top: 2px; }
details { border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; margin-top: 8px; background: var(--panel-2); }
summary { cursor: pointer; font-size: 12.5px; }
pre {
  font: 12px var(--mono);
  background: #0b0d12;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 8px 0 0;
}
.banner {
  border: 1px solid color-mix(in srgb, var(--warn) 35%, transparent);
  background: color-mix(in srgb, var(--warn) 8%, transparent);
  color: var(--text);
  border-radius: 6px;
  padding: 9px 11px;
  font-size: 12.5px;
  margin-bottom: 12px;
}
.bar { height: 6px; background: var(--panel-2); border-radius: 3px; overflow: hidden; margin-top: 6px; }
.bar > span { display: block; height: 100%; background: var(--pass); transition: width .2s; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 14px; }
.tabs button {
  border: none; border-bottom: 2px solid transparent; border-radius: 0;
  background: transparent; color: var(--muted); padding: 8px 12px;
}
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); }
.hidden { display: none !important; }
.del { color: var(--fail); border-color: transparent; background: transparent; padding: 2px 6px; }
.case-card { border: 1px solid var(--border); border-radius: 6px; padding: 10px; margin-bottom: 8px; background: var(--panel-2); }
.case-card .hdr { display: flex; gap: 8px; align-items: center; margin-bottom: 6px; }
.case-card .hdr input { flex: 1; }
.assert-row { display: grid; grid-template-columns: 150px 1fr auto; gap: 6px; margin-top: 6px; }
@media (max-width: 700px) { .assert-row { grid-template-columns: 1fr; } }
footer { padding: 24px 20px 40px; color: var(--muted); font-size: 12px; text-align: center; }
.diff-add { background: color-mix(in srgb, var(--pass) 18%, transparent); }
.diff-del { background: color-mix(in srgb, var(--fail) 18%, transparent); text-decoration: line-through; }