:root {
  --bg: #0b0d14; --text: #e8ecf4; --muted: #9aa4b8; --accent: #6ea8ff;
  --surface: #141824; --border: #232838; --radius: 12px;
  color-scheme: dark;
}
* { box-sizing: border-box; margin: 0; }
body { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #171c2e, var(--bg));
  color: var(--text); }
.wrap { min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
  align-items: center; text-align: center; padding: 24px; gap: 18px; }
.brand { font-weight: 800; letter-spacing: .02em; color: var(--accent); }
h1 { font-size: clamp(30px, 7vw, 56px); letter-spacing: -.02em; max-width: 16ch; }
.lede { color: var(--muted); max-width: 46ch; }

.countdown { display: flex; gap: clamp(10px, 3vw, 22px); margin: 10px 0; }
.unit { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px clamp(12px, 3vw, 22px); min-width: 74px; }
.num { display: block; font-size: clamp(24px, 5vw, 34px); font-weight: 800; font-variant-numeric: tabular-nums; }
.lbl { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }

.signup { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; width: 100%; max-width: 420px; }
.signup input { flex: 1 1 200px; padding: 13px 15px; border-radius: var(--radius);
  border: 1px solid var(--border); background: #0e1119; color: var(--text); font-size: 15px; }
.signup input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.signup button { padding: 13px 22px; border: 0; border-radius: var(--radius);
  background: var(--accent); color: #06080f; font-weight: 700; cursor: pointer; }
.msg { color: var(--accent); min-height: 20px; font-size: 14px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }