/* CREST Clock — phone-first. Tokens from the Crest OS identity canon (../Crest OS/Design-Language.md,
   App/src/Styles.html). Light and dark are both canon; the toggle follows the OS. */
:root {
  --home-by-the-sea: #0B3B31; --permanent-waves: #107860; --ripples: #68C850; --limelight: #B0D810;
  --bg: #F7F6EF; --surface: #FFFFFF; --ink: #10261F; --ink-soft: #4A5F57; --line: #DDE3DC;
  --accent: var(--permanent-waves); --accent-soft: #E4F0EC; --accent-ink: #FFFFFF;
  --ok: #107860; --ok-soft: #E4F0EC; --warn: #a16207; --warn-soft: #FBF3DC; --bad: #b00020; --bad-soft: #FBE4E6;
  --radius: 16px; --shadow: 0 1px 2px rgba(11,59,49,.08), 0 8px 24px rgba(11,59,49,.06);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0A2A22; --surface: #0F3A2F; --ink: #E8F0EA; --ink-soft: #9DB8AC; --line: #1D4A3D;
    --accent: var(--ripples); --accent-soft: #14453A; --accent-ink: #062018;
    --ok: #68C850; --ok-soft: #14453A; --warn: #E3B341; --warn-soft: #3A3010; --bad: #FF6B6B; --bad-soft: #4A1A1E; --shadow: none; }
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 17px/1.45 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-text-size-adjust: 100%; -webkit-tap-highlight-color: transparent;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.app { max-width: 480px; margin: 0 auto; padding: 16px 16px 32px; min-height: 100%; display: flex; flex-direction: column; gap: 16px; }
header.brand { display: flex; align-items: center; gap: 12px; padding-top: 8px; }
header.brand img { width: 44px; height: 44px; }
header.brand h1 { font-size: 1.25rem; margin: 0; color: var(--accent); letter-spacing: .01em; }
header.brand small { display: block; color: var(--ink-soft); font-size: .85rem; font-weight: 400; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.muted { color: var(--ink-soft); }
.who { font-size: 1.05rem; }
.who strong { display: block; font-size: 1.3rem; }
.btn {
  display: block; width: 100%; font: inherit; font-size: 1.35rem; font-weight: 600; padding: 22px 16px; border-radius: var(--radius);
  border: 0; cursor: pointer; color: var(--accent-ink); background: var(--accent); touch-action: manipulation;
}
.btn:disabled { opacity: .45; cursor: default; }
.btn.secondary { background: var(--accent-soft); color: var(--ink); }
.btn.out { background: var(--home-by-the-sea); color: #fff; }
@media (prefers-color-scheme: dark) { .btn.out { background: #E8F0EA; color: var(--home-by-the-sea); } }
.btn.small { font-size: 1rem; padding: 12px 14px; font-weight: 500; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.seg { display: flex; gap: 6px; padding: 4px; background: var(--accent-soft); border-radius: 12px; }
.seg button { flex: 1; font: inherit; font-size: .95rem; padding: 10px 6px; border: 0; border-radius: 9px; background: transparent; color: var(--ink); cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--accent); font-weight: 600; box-shadow: var(--shadow); }
.status { border-radius: var(--radius); padding: 16px 18px; border: 1px solid var(--line); }
.status.ok { background: var(--ok-soft); border-color: transparent; }
.status.warn { background: var(--warn-soft); border-color: transparent; }
.status.bad { background: var(--bad-soft); border-color: transparent; }
.status h2 { margin: 0 0 4px; font-size: 1.15rem; }
.status.ok h2 { color: var(--ok); } .status.warn h2 { color: var(--warn); } .status.bad h2 { color: var(--bad); }
.status p { margin: 4px 0 0; }
.spin { display: inline-block; width: 1em; height: 1em; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -.15em; margin-right: .4em; }
@keyframes spin { to { transform: rotate(360deg); } }
footer { margin-top: auto; display: flex; justify-content: space-between; align-items: center; color: var(--ink-soft); font-size: .85rem; }
footer button { font: inherit; font-size: .85rem; background: none; border: 1px solid var(--line); color: var(--ink-soft); border-radius: 8px; padding: 6px 10px; }
.ptr { text-align: center; color: var(--ink-soft); font-size: .85rem; height: 0; overflow: hidden; transition: height .15s; }
ol.steps { padding-left: 1.2rem; margin: 8px 0 0; } ol.steps li { margin: 6px 0; }
kbd { font: inherit; font-size: .9em; background: var(--accent-soft); border-radius: 6px; padding: 1px 6px; }
[hidden] { display: none !important; }