:root {
  --bg: #0b0f14;
  --card: #141b24;
  --line: #23303d;
  --tx: #e6edf3;
  --mut: #8aa0b3;
  --ok: #2ecc71;
  --warn: #f1c40f;
  --bad: #e74c3c;
  --accent: #4aa3ff;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; background: var(--bg); color: var(--tx);
  font: 16px/1.45 -apple-system, system-ui, sans-serif; }
body { padding: env(safe-area-inset-top) 12px calc(env(safe-area-inset-bottom) + 12px); max-width: 720px; margin: 0 auto; }
header { padding: 12px 0; }
h1 { font-size: 20px; margin: 0 0 4px; }
.sub { color: var(--mut); margin: 0; font-size: 14px; }
.hint { margin-top: 10px; padding: 10px; border-radius: 10px; background: #3a2d0a; color: #ffe08a; font-size: 13px; }
.hidden { display: none; }

.stage { position: sticky; top: 0; z-index: 5; margin: 8px 0; border-radius: 14px; overflow: hidden;
  background: #000; aspect-ratio: 3/4; max-height: 46vh; }
.stage video, .stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.stage canvas { pointer-events: none; }
.hud { position: absolute; left: 8px; bottom: 8px; display: flex; gap: 8px; flex-wrap: wrap;
  font: 600 12px ui-monospace, monospace; }
.hud span { background: rgba(0,0,0,.6); padding: 3px 7px; border-radius: 7px; }

.test { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px; margin: 12px 0; }
.test-head { display: flex; align-items: center; justify-content: space-between; }
.test-head h2 { font-size: 16px; margin: 0; }
.verdict { font: 700 12px ui-monospace, monospace; padding: 3px 9px; border-radius: 20px; background: #1c2733; color: var(--mut); }
.verdict.ok { background: rgba(46,204,113,.15); color: var(--ok); }
.verdict.warn { background: rgba(241,196,15,.15); color: var(--warn); }
.verdict.bad { background: rgba(231,76,60,.15); color: var(--bad); }
.verdict.run { background: rgba(74,163,255,.15); color: var(--accent); }
.desc { color: var(--mut); font-size: 13px; margin: 8px 0 12px; }
label { display: block; color: var(--mut); font-size: 13px; margin-bottom: 10px; }
select { background: #0f1620; color: var(--tx); border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; font-size: 14px; }

button { appearance: none; border: 0; border-radius: 10px; background: var(--accent); color: #04121f;
  font: 700 15px system-ui; padding: 12px 16px; margin: 4px 6px 4px 0; cursor: pointer; }
button.ghost { background: transparent; border: 1px solid var(--line); color: var(--mut); }
button.big { width: 100%; padding: 16px; font-size: 17px; background: var(--ok); color: #04140a; margin: 0; }
button:disabled { opacity: .5; }
.btn-row { display: flex; flex-wrap: wrap; }

.out { background: #0a0f15; border: 1px solid var(--line); border-radius: 10px; padding: 10px;
  font: 12px/1.5 ui-monospace, monospace; white-space: pre-wrap; word-break: break-word; color: #b9c9d6;
  margin: 10px 0 0; min-height: 8px; }
footer { margin: 18px 0 8px; }
.note { color: var(--mut); font-size: 12px; text-align: center; margin: 10px 0 0; }