:root {
  --bg: #08080b;
  --fg: #f2f0f1;
  --dim: #8d8a90;
  --accent: #d6213f;
  --card: #121218;
  --line: #2a2a33;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 system-ui, "Segoe UI", Roboto, Arial, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px 16px;
}
html.transparent, html.transparent body { background: transparent; }
.wrap { width: 100%; max-width: 900px; text-align: center; }
h1 {
  font-size: clamp(1rem, 3.2vw, 1.5rem);
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 18px;
}
.clock {
  display: flex;
  justify-content: center;
  gap: clamp(8px, 2.4vw, 22px);
  margin: 0 0 14px;
}
.unit {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: clamp(10px, 2.4vw, 22px) clamp(10px, 2.8vw, 26px);
  min-width: clamp(64px, 17vw, 150px);
}
html.transparent .unit { background: rgba(8, 8, 11, .55); }
.num {
  display: block;
  font-size: clamp(2.2rem, 10vw, 5.6rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.05;
  color: var(--fg);
}
.lab {
  display: block;
  font-size: clamp(.65rem, 1.8vw, .9rem);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 4px;
}
.end {
  font-size: clamp(1rem, 3vw, 1.5rem);
  color: var(--accent);
  min-height: 1.6em;
  margin: 6px 0 0;
}
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.note { color: var(--dim); font-size: .85rem; margin: 18px auto 0; max-width: 60ch; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible, textarea:focus-visible { outline: 2px solid var(--fg); outline-offset: 2px; }
section.embed { margin: 36px auto 0; max-width: 700px; text-align: left; }
section.embed h2 { font-size: 1rem; letter-spacing: .1em; text-transform: uppercase; color: var(--dim); margin: 0 0 8px; }
textarea {
  width: 100%;
  height: 4.6em;
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  font: .85rem/1.4 ui-monospace, Consolas, monospace;
  resize: vertical;
}
button {
  margin-top: 8px;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 9px 16px;
  font: inherit;
  cursor: pointer;
}
ul.opts { color: var(--dim); font-size: .9rem; padding-left: 1.2em; }
ul.opts code { color: var(--fg); }
@media (prefers-reduced-motion: no-preference) {
  .end { transition: opacity .8s ease; }
}