:root {
  --bg: #f3f1ea;
  --card: #ffffff;
  --text: #1b1f1c;
  --muted: #5f6861;
  --accent: #1d6b3f;
  --accent-text: #ffffff;
  --line: #d9d6cc;
  --heard: #1faa55;
  --chirp: #e8891d;
  --stop: #b3261e;
  --meter-bg: #e6e3da;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111512;
    --card: #1b211d;
    --text: #e8ece9;
    --muted: #9aa59d;
    --accent: #3fae6c;
    --accent-text: #08120c;
    --line: #2d3530;
    --meter-bg: #2a312c;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}
header {
  display: flex; align-items: baseline; gap: 8px;
  padding: 16px 16px 4px; max-width: 560px; margin: 0 auto;
}
h1 { font-size: 22px; margin: 0; }
.ver { color: var(--muted); font-size: 13px; }
.help-link { margin-left: auto; color: var(--accent); font-size: 15px; font-weight: 600; text-decoration: none; padding: 6px 0; }
main { max-width: 560px; margin: 0 auto; padding: 8px 16px 32px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 14px; margin-bottom: 12px;
}
button {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
  -webkit-tap-highlight-color: transparent; cursor: pointer;
}
button:active { filter: brightness(0.92); }
button:disabled { opacity: 0.5; }
.field { display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--muted); }
input, select {
  font: inherit; font-size: 16px; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; width: 100%;
}
.roles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; margin-top: 12px; }
.roles button[aria-checked="true"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 600; }
.help { color: var(--muted); font-size: 14px; margin: 8px 0 0; }
.big {
  width: 100%; margin-top: 12px; padding: 16px; font-size: 20px; font-weight: 700;
  background: var(--accent); color: var(--accent-text); border-color: var(--accent);
}
.big.running { background: var(--stop); border-color: var(--stop); color: #fff; }
.small { font-size: 14px; padding: 8px 10px; margin-top: 10px; width: 100%; }
.lights { display: flex; align-items: center; gap: 14px; margin-top: 12px; font-size: 14px; color: var(--muted); flex-wrap: wrap; }
.lights span { display: inline-flex; align-items: center; gap: 6px; }
.lights i { width: 14px; height: 14px; border-radius: 50%; background: var(--meter-bg); display: inline-block; transition: background 0.3s; }
#light-heard.on { background: var(--heard); transition: none; }
#light-chirp.on { background: var(--chirp); transition: none; }
.status { margin-left: auto; color: var(--text); }
.banner { background: #fff3cd; color: #5c4400; border-radius: 8px; padding: 8px 10px; font-size: 14px; margin: 10px 0 0; }
.meter-head, .log-head { display: flex; justify-content: space-between; font-size: 14px; color: var(--muted); }
.log-head strong { color: var(--text); }
.meter { position: relative; height: 18px; background: var(--meter-bg); border-radius: 9px; overflow: hidden; margin-top: 6px; }
#meter-bar { height: 100%; width: 0; background: var(--heard); }
#meter-thr { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--stop); }
summary { font-weight: 600; cursor: pointer; }
#params h3 { font-size: 14px; color: var(--muted); margin: 14px 0 4px; font-weight: 600; }
.param { display: grid; grid-template-columns: 1fr 110px; align-items: center; gap: 8px; padding: 4px 0; font-size: 15px; }
.param small { display: block; color: var(--muted); font-size: 12px; }
.log-buttons { display: grid; grid-template-columns: 1fr 1fr auto; gap: 6px; margin: 8px 0; }
.quiet { color: var(--muted); }
pre#log {
  font: 12px/1.4 ui-monospace, Menlo, monospace; margin: 0; max-height: 260px; overflow: auto;
  white-space: pre-wrap; word-break: break-all; color: var(--muted);
}