:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #1a1d21;
  --muted: #6b7280;
  --border: #dfe3e8;
  --accent: #146c43;
  --accent-hover: #0f5132;
  --pass: #1a7f37;
  --warn: #9a6700;
  --fail: #b3261e;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --panel: #1c2024;
    --text: #e8eaed;
    --muted: #9aa0a6;
    --border: #2f343a;
    --accent: #2ea043;
    --accent-hover: #3fb950;
    --pass: #3fb950;
    --warn: #d29922;
    --fail: #f85149;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 40px 16px 64px;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

main {
  max-width: 760px;
  margin: 0 auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 28px 32px;
}

h1 { margin: 0 0 24px; font-size: 22px; letter-spacing: -0.01em; }
h2 { margin: 28px 0 10px; font-size: 13px; text-transform: uppercase;
     letter-spacing: 0.06em; color: var(--muted); font-weight: 600; }

.field-label { display: block; margin-bottom: 8px; font-weight: 600; font-size: 14px; }

textarea {
  width: 100%;
  padding: 12px;
  font: 13px/1.6 var(--mono);
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  resize: vertical;
}
textarea:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hint { margin: 8px 0 16px; font-size: 13px; color: var(--muted); }
.hint.error { color: var(--fail); font-weight: 600; }

button, .button {
  display: inline-block;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: var(--accent);
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
}
button:hover:not(:disabled), .button:hover { background: var(--accent-hover); }
button:disabled { opacity: 0.55; cursor: not-allowed; }

.button.secondary, button.secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.button.secondary:hover, button.secondary:hover:not(:disabled) { background: var(--bg); }

.status { min-height: 20px; margin: 14px 0 0; font-size: 14px; color: var(--muted); }
.status.error { color: var(--fail); font-weight: 600; }

.results { list-style: none; margin: 0; padding: 0; font-family: var(--mono); font-size: 13px; }
.results li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.results li:last-child { border-bottom: 0; }

.mark { flex: 0 0 auto; width: 1.4em; font-weight: 700; }
.mark.PASS { color: var(--pass); }
.mark.WARNING { color: var(--warn); }
.mark.FAILED { color: var(--fail); }
.mark.running { color: var(--accent); animation: pulse 1.1s ease-in-out infinite; }
.mark.pending { color: var(--muted); }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
@media (prefers-reduced-motion: reduce) { .mark.running { animation: none; } }

.name { flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.count { flex: 0 0 auto; font-variant-numeric: tabular-nums; color: var(--muted); }
.count.FAILED { color: var(--fail); }
.count.running { color: var(--accent); }
.count.pending, .results li:has(.mark.pending) .name { color: var(--muted); }
.why { flex-basis: 100%; padding-left: calc(1.4em + 10px); color: var(--fail); font-size: 12px; }

.summary { margin: 0 0 16px; padding: 14px; background: var(--bg);
           border: 1px solid var(--border); border-radius: 8px;
           font: 13px/1.7 var(--mono); white-space: pre-wrap; }

.downloads { display: flex; gap: 10px; flex-wrap: wrap; }

@media (max-width: 560px) {
  body { padding: 20px 12px 40px; }
  main { padding: 20px 16px 24px; }
  .results li { flex-wrap: wrap; }
}