/* Warm, low-blue dark palette: the evening entry happens near bedtime. */
:root {
  --bg: #131110;
  --surface: #1d1a17;
  --surface2: #26221e;
  --line: #332e28;
  --text: #eae3d8;
  --muted: #a2988a;
  --faint: #6e6558;
  --accent: #e0a458;
  --accent-ink: #1a1408;
  --good: #7fb069;
  --warn: #d08770;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: contain;
}
.num { font-variant-numeric: tabular-nums; font-family: ui-monospace, "SF Mono", Menlo, monospace; }

.frame {
  max-width: 420px;
  margin: 0 auto;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; padding: 16px 16px 100px; }
.screen { display: none; }
.screen.active { display: block; }

h1 { font-size: 1.35rem; margin: 0; letter-spacing: -0.01em; text-wrap: balance; }
h2 { font-size: 1.1rem; margin: 0 0 2px; }
.eyebrow {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--muted); margin: 24px 0 10px; font-weight: 600;
}
.eyebrow:first-child { margin-top: 4px; }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
}
.stack { display: flex; flex-direction: column; gap: 10px; }
.row { display: flex; align-items: center; gap: 10px; }
.row .grow { flex: 1; min-width: 0; }
.hint { color: var(--muted); font-size: 0.85rem; }
.tiny { color: var(--faint); font-size: 0.75rem; }
.warn-text { color: var(--warn); }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.75rem; font-weight: 600;
  padding: 3px 10px; border-radius: 99px;
  background: var(--surface2); color: var(--muted);
  border: 1px solid var(--line);
  white-space: nowrap;
}
.chip.accent { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 35%, transparent); }
.chip.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 35%, transparent); }
.chip.good { color: var(--good); border-color: color-mix(in srgb, var(--good) 35%, transparent); }

button { font: inherit; color: inherit; cursor: pointer; }
button:focus-visible, input:focus-visible, a:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}
.btn {
  display: flex; width: 100%; align-items: center; justify-content: center;
  min-height: 52px; border-radius: 13px; border: 1px solid var(--line);
  background: var(--surface2); font-weight: 600; font-size: 1rem;
  text-align: center;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.danger { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.btn.quiet { background: none; border: none; min-height: 44px; color: var(--muted); font-weight: 500; }
.btn.inline { width: auto; padding: 0 20px; min-height: 44px; }
.btn[disabled] { opacity: 0.5; cursor: default; }

.banner {
  display: flex; align-items: center; gap: 10px;
  border-radius: 13px; padding: 12px 14px;
  background: color-mix(in srgb, var(--accent) 12%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  font-size: 0.9rem;
}
.banner b { color: var(--accent); }
.banner.warn {
  background: color-mix(in srgb, var(--warn) 12%, var(--surface));
  border-color: color-mix(in srgb, var(--warn) 30%, transparent);
}
.banner.warn b { color: var(--warn); }

/* ---------- scale input ---------- */
.scale { padding: 14px 16px; }
.scale .q { font-weight: 600; margin-bottom: 2px; }
.scale .sub { color: var(--muted); font-size: 0.82rem; margin-bottom: 6px; }
/* Anchor sits above the track: below it, a dragging thumb covers it. */
.anchor { min-height: 1.2em; margin: 2px 0 8px; font-size: 0.85rem; color: var(--accent); }
.anchor.untouched { color: var(--faint); }
.scale-slider { padding: 4px 6px 0; }
.scale-slider input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 44px; margin: 0; background: none;
}
.scale-slider input[type="range"]::-webkit-slider-runnable-track {
  height: 10px; border-radius: 5px; background: var(--surface2); border: 1px solid var(--line);
}
.scale-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent); border: none; margin-top: -11px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.5);
}
.scale-slider input[type="range"]::-moz-range-track {
  height: 10px; border-radius: 5px; background: var(--surface2); border: 1px solid var(--line);
}
.scale-slider input[type="range"]::-moz-range-thumb {
  width: 30px; height: 30px; border-radius: 50%; background: var(--accent); border: none;
}
.scale.untouched .scale-slider input[type="range"]::-webkit-slider-thumb { background: var(--faint); }
.scale.untouched .scale-slider input[type="range"]::-moz-range-thumb { background: var(--faint); }
.scale-ticks {
  display: flex; justify-content: space-between;
  padding: 0 9px; margin-top: 2px;
  font-size: 0.8rem; color: var(--faint); font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.scale-ticks span.on { color: var(--accent); }

/* ---------- steppers, choices, inputs ---------- */
.stepper { display: flex; align-items: center; gap: 12px; }
.stepper button {
  width: 52px; height: 52px; border-radius: 12px;
  border: 1px solid var(--line); background: var(--surface2);
  font-size: 1.4rem; font-weight: 600;
}
.stepper .val { min-width: 2.2ch; text-align: center; font-size: 1.25rem; font-weight: 650; }

.choice { display: flex; flex-wrap: wrap; gap: 8px; }
.choice button {
  min-height: 46px; padding: 0 16px; border-radius: 12px;
  border: 1px solid var(--line); background: var(--surface2);
  font-size: 0.9rem; font-weight: 550;
}
.choice button[aria-pressed="true"] {
  background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 650;
}

input[type="time"], input[type="date"], input[type="text"], input[type="number"] {
  width: 100%; min-height: 50px; padding: 10px 14px;
  border-radius: 12px; border: 1px solid var(--line);
  background: var(--surface2); color: var(--text); font: inherit;
}
input[type="time"], input[type="date"], input[type="number"] { font-variant-numeric: tabular-nums; }
label.field { display: block; }
label.field .lab { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 6px; }

/* ---------- collapsible reference ---------- */
details { margin-top: 10px; }
details > summary {
  list-style: none; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  min-height: 40px; font-size: 0.85rem; color: var(--accent); font-weight: 600;
}
details > summary::-webkit-details-marker { display: none; }
details > summary::before { content: "›"; display: inline-block; transition: transform 0.15s; font-size: 1.1rem; }
details[open] > summary::before { transform: rotate(90deg); }
table.ref { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
table.ref td { padding: 6px 2px; border-top: 1px solid var(--line); color: var(--muted); }
table.ref td.num { text-align: right; color: var(--text); font-weight: 650; width: 3.5ch; }

/* ---------- header / timer ---------- */
.screen-head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.back { background: none; border: none; color: var(--muted); font-size: 1.5rem; padding: 4px 8px 4px 0; }
.timer { margin-left: auto; font-size: 0.95rem; font-weight: 650; color: var(--good); }
.timer.over { color: var(--warn); }

/* ---------- nav ---------- */
nav {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 420px;
  display: grid; grid-template-columns: repeat(3, 1fr);
  background: color-mix(in srgb, var(--surface) 92%, black);
  border-top: 1px solid var(--line);
  padding: 6px 8px calc(6px + env(safe-area-inset-bottom));
  z-index: 10;
}
nav button {
  background: none; border: none; border-radius: 10px;
  padding: 8px 0 6px; color: var(--faint);
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.04em;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
}
nav button[aria-current="true"] { color: var(--accent); }

/* ---------- trends / gates ---------- */
.gate {
  border: 1px dashed var(--line); border-radius: 13px; padding: 16px;
  color: var(--muted); font-size: 0.9rem;
}
.gatebar { height: 6px; border-radius: 3px; background: var(--surface2); margin-top: 10px; overflow: hidden; }
.gatebar > div { height: 100%; background: var(--accent); }

/* ---------- toast ---------- */
#toast {
  position: fixed; bottom: 92px; left: 50%; transform: translateX(-50%);
  background: var(--surface2); border: 1px solid var(--line); color: var(--text);
  padding: 10px 18px; border-radius: 99px; font-size: 0.9rem; font-weight: 600;
  opacity: 0; transition: opacity 0.25s; pointer-events: none;
  max-width: 90%; text-align: center; z-index: 20;
}
#toast.show { opacity: 1; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }