:root {
  --bg: #11141b;
  --panel: #171b24;
  --line: #262b36;
  --ink: #e6e9f0;
  --dim: #8b93a7;
  --ref: #f0b429;
  --you: #3aa8c1;
  --ok: #4ec97e;
  --no: #e8674f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}

#app { max-width: 860px; margin: 0 auto; padding: 28px 20px 48px; }

header h1 { margin: 0; font-size: 30px; letter-spacing: -0.01em; }
.tagline { margin: 4px 0 14px; color: var(--dim); }

.warn {
  margin: 0 0 24px;
  padding: 10px 14px;
  border-left: 3px solid var(--ref);
  background: #1d1a12;
  color: #e8dcc0;
  font-size: 14px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
  margin-bottom: 18px;
}

.panel h2 { margin: 0 0 12px; font-size: 13px; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--dim); font-weight: 600; }

canvas { width: 100%; height: 320px; display: block; }

.legend { margin: 10px 0 0; font-size: 13px; color: var(--dim); }
.swatch { display: inline-block; width: 22px; height: 3px; vertical-align: middle;
  margin: 0 6px 0 14px; border-radius: 2px; }
.swatch:first-child { margin-left: 0; }
.swatch.ref { background: var(--ref); }
.swatch.you { background: var(--you); }
.hint { color: var(--dim); font-size: 13px; }
.legend .hint { display: block; margin-top: 6px; }

.controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 18px; }

button {
  background: #212734;
  color: var(--ink);
  border: 1px solid #333b4d;
  border-radius: 8px;
  padding: 11px 18px;
  font: inherit;
  font-size: 15px;
  cursor: pointer;
}
button:hover:not(:disabled) { background: #2a3140; }
button:disabled { opacity: 0.4; cursor: default; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--you); outline-offset: 2px; }
button.recording { border-color: var(--no); color: var(--no); }

.call-pick { font-size: 13px; color: var(--dim); }
select {
  background: #212734; color: var(--ink); border: 1px solid #333b4d;
  border-radius: 8px; padding: 11px 12px; font: inherit; font-size: 15px; max-width: 100%;
}
select:focus-visible { outline: 2px solid var(--you); outline-offset: 2px; }

#status { flex-basis: 100%; margin: 4px 0 0; color: var(--dim); font-size: 14px; min-height: 1.5em; }

.described p { margin: 0 0 8px; }

dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; margin: 0 0 12px; }
dt { color: var(--dim); font-size: 14px; }
dd { margin: 0; font-variant-numeric: tabular-nums; }
.thr { color: var(--dim); font-size: 13px; }

.pass { color: var(--ok); font-weight: 600; margin: 0 0 8px; }
.fail { color: var(--no); font-weight: 600; margin: 0 0 8px; }
.note { color: var(--dim); font-size: 13px; margin: 0; }

.export-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.export-row label { font-size: 13px; color: var(--dim); }
input[type="text"] {
  background: #11141b; color: var(--ink); border: 1px solid #333b4d;
  border-radius: 8px; padding: 9px 12px; font: inherit; font-size: 14px; width: 130px;
}

footer { margin-top: 32px; color: var(--dim); font-size: 13px; }
footer a { color: var(--you); }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }