:root {
  --bg: #fff;
  --ink: #111;
  --muted: #5c5648;
  --gold: #c9a227;
  --gold-ink: #1a1408;
  --line: #ece6d8;
  --field: #f3efe6;
}
* { box-sizing: border-box; }
html, body, main, .wrap { margin: 0; min-height: 100%; background: #fff; color: var(--ink); }
body, h1, h2, button, label, input, select { font-family: system-ui, "Segoe UI", Inter, Helvetica, Arial, sans-serif; }
.wrap { max-width: 36rem; margin: 0 auto; padding: 2rem 1.25rem 3rem; }
.eyebrow { letter-spacing: 0.16em; text-transform: uppercase; font-size: 0.72rem; color: var(--gold); font-weight: 700; }
h1 { font-size: clamp(1.8rem, 5vw, 2.4rem); margin: 0 0 0.6rem; letter-spacing: -0.03em; }
.lede, .status { color: var(--muted); line-height: 1.5; }
label { display: block; margin: 1.1rem 0 0; color: var(--muted); font-size: 0.9rem; }
input, select, button {
  width: 100%; margin-top: 0.35rem; padding: 0.65rem 0.85rem;
  background: var(--field); color: var(--ink); border: 1px solid var(--line); border-radius: 999px;
  font: inherit;
}
.cta { display: flex; gap: 0.6rem; margin-top: 1.2rem; }
.cta button { cursor: pointer; }
#start { background: var(--gold); color: var(--gold-ink); border-color: var(--gold); font-weight: 700; }
#stop { background: #fff; }
.rate { font-family: ui-monospace, Consolas, monospace; color: var(--gold); font-size: 1.35rem; font-weight: 700; }
button:disabled { opacity: 0.45; cursor: not-allowed; }