/* RuckUhr. Colours, fonts and radii come from the BLG theme (brand/ruckuhr.css, packages/design-tokens):
   the same accent in night and day. */

* { box-sizing: border-box; }

html, body { height: 100%; margin: 0; }

body {
  background: var(--blg-bg);
  color: var(--blg-ink);
  font-family: var(--blg-font-body);
  display: flex;
  flex-direction: column;
  transition: background .3s, color .3s;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
}

.brand { font: 700 1.4rem var(--blg-font-display); }

button.mode { width: 44px; height: 44px; min-height: 44px; padding: 0; display: inline-flex; align-items: center; justify-content: center; border-color: var(--blg-line); color: var(--blg-accent); }

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 16px;
}

.ring {
  --progress: 0;
  width: min(78vw, 360px);
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(closest-side, var(--blg-bg) 88%, transparent 89%),
    conic-gradient(var(--blg-accent) calc(var(--progress) * 360deg), var(--blg-faint) 0);
}

.time {
  font-size: clamp(3rem, 16vw, 5.5rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.label { margin: 0; color: var(--blg-mute); text-transform: uppercase; letter-spacing: .2em; }

.controls { display: flex; gap: 12px; }

button {
  font: inherit;
  border-radius: 999px;
  padding: 12px 28px;
  min-height: 48px;
  cursor: pointer;
  border: 2px solid var(--blg-accent);
}

button:disabled { opacity: .5; cursor: default; }
button:focus-visible { outline: 3px solid var(--blg-secondary); outline-offset: 3px; }

.primary { background: var(--blg-accent); color: var(--blg-on-accent); font-weight: 600; }

.ghost { background: transparent; color: var(--blg-ink); }