/* The shell every bed wears.
 *
 * One tap to start, a countdown, a way to stop. A bed page supplies two custom
 * properties and its own words, and nothing else about the layout differs:
 *
 *   --accent   the one colour that is not grey
 *   --bg       the page behind it
 *
 * WHY THE PAGE GOES BLACK WHILE IT PLAYS. Whatever is on screen is going to be
 * in a dark room next to somebody trying to sleep, so once it is running there
 * is nothing to look at but the time left.
 */

:root {
  color-scheme: dark;
  --ink: #eef2f5;
  --dim: #8090a0;
  --accent: #7fd6ff;
  --bg: #07060b;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 500 16px/1.5 ui-rounded, "SF Pro Rounded", system-ui, -apple-system, sans-serif;
  -webkit-text-size-adjust: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(24px + env(safe-area-inset-top, 0px)) 20px
           calc(24px + env(safe-area-inset-bottom, 0px));
  text-align: center;
  transition: background 1.2s;
}
body.playing { background: #000; }

h1 { margin: 0 0 6px; font-size: 30px; letter-spacing: -0.02em; font-weight: 600; }
.sub { margin: 0 0 4px; color: var(--dim); font-size: 15px; max-width: 22em; }

/* The placement line. Said before it starts, because distance is the only large
 * lever anyone has over how loud this is where the baby actually is — and it is
 * the one thing on the page aimed at the adult in the room rather than at the
 * child who pressed the button. */
.place {
  margin: 18px 0 26px;
  padding: 12px 16px;
  max-width: 22em;
  border: 1px solid #ffffff1f;
  border-radius: 12px;
  color: var(--accent);
  font-size: 14px;
  line-height: 1.45;
}

.label {
  color: var(--dim);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

/* THE DURATIONS ARE THE START CONTROL. Tapping one both picks the length and
 * begins, so a nine-year-old still starts it in one tap and there is no settings
 * step to get wrong (req:she-turns-it-on-herself, req:you-say-how-long). */
.times {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  width: 100%;
  max-width: 22em;
}
.times button {
  appearance: none;
  font: inherit;
  font-size: 19px;
  font-weight: 600;
  padding: 20px 8px;
  border-radius: 16px;
  cursor: pointer;
  border: 1px solid #ffffff2b;
  background: #ffffff0d;
  color: var(--ink);
  transition: transform 0.1s, background 0.15s;
}
.times button:active { transform: scale(0.97); background: #ffffff1a; }

#playing { display: none; }
body.playing #start { display: none; }
body.playing #playing { display: block; }

.left { font-size: 15px; color: var(--dim); }
.clock {
  font-size: 64px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  margin: 10px 0 2px;
  letter-spacing: -0.02em;
}
.hint { color: #56646f; font-size: 14px; margin: 28px 0 0; max-width: 20em; }

#stop {
  appearance: none;
  font: inherit;
  font-size: 15px;
  margin-top: 30px;
  padding: 13px 30px;
  border-radius: 999px;
  cursor: pointer;
  border: 1px solid #ffffff26;
  background: transparent;
  color: var(--dim);
}

.err { color: #ff90ab; font-size: 14px; margin-top: 18px; min-height: 1em; }