/* style.css — mobile first. Big tap targets, thumb-reachable actions. */

:root {
  color-scheme: light dark;
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-2: #eceef1;
  --line: #d9dce1;
  --text: #16191d;
  --muted: #666e79;
  --accent: #2f7d4f;
  --accent-text: #ffffff;
  --danger: #b3261e;
  --warn: #8a6300;          /* text and borders: passes AA on the surface */
  --likely: #a8451a;
  --warn-fill: #d9a441;     /* bar segments: fills, so lighter is fine */
  --likely-fill: #d9773a;
  --radius: 14px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --surface: #1a1e24;
    --surface-2: #232830;
    --line: #333a44;
    --text: #e8eaed;
    --muted: #9aa3ae;
    --accent: #4caf7d;
    --accent-text: #07130d;
    --danger: #f2635a;
    --warn: #e0a530;
    --likely: #e2854f;
    --warn-fill: #c8922b;
    --likely-fill: #c96a24;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(140px + var(--safe-bottom));
  -webkit-text-size-adjust: 100%;
}

h2 { font-size: 1rem; margin: 0 0 12px; }
h3 { font-size: .9rem; margin: 20px 0 8px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- top bar ---------- */

.topbar {
  position: sticky; top: 0; z-index: 5;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 8px 12px;
}

.datenav { display: flex; align-items: center; justify-content: center; gap: 4px; }

.daylabel {
  flex: 1; max-width: 260px;
  background: none; border: 0; color: var(--text);
  font: inherit; font-weight: 600; font-size: 1.05rem;
  padding: 8px; cursor: pointer;
}

.iconbtn {
  background: none; border: 0; color: var(--muted);
  font-size: 1.6rem; line-height: 1;
  width: 44px; height: 44px; cursor: pointer;
}

/* ---------- layout ---------- */

main { padding: 12px; max-width: 640px; margin: 0 auto; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
}

.card.danger { border-color: var(--danger); }

/* ---------- summary ---------- */

.summary {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 16px;
  text-align: center;
  margin-bottom: 14px;
}

.kcal { font-size: 2.6rem; font-weight: 700; line-height: 1; }
.kcal .unit { font-size: .95rem; font-weight: 500; color: var(--muted); margin-left: 6px; }
.target { color: var(--muted); font-size: .9rem; margin-top: 6px; min-height: 1.2em; }
.target.over { color: var(--danger); }

/* How much of the day's allowance is gone. Fills up, then turns red. */
.bar {
  height: 8px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 12px;
}
.bar[hidden] { display: none; }
.bar > div {
  height: 100%;
  width: 0;
  background: var(--accent);
  border-radius: 999px;
  transition: width .25s ease;
}
.bar.over > div { background: var(--danger); }

.fits { color: var(--text); font-weight: 600; }
.fits.over { color: var(--danger); }

.macros {
  display: flex; justify-content: space-around;
  margin-top: 16px; padding-top: 14px;
  border-top: 1px solid var(--line);
}
.macros div { display: flex; flex-direction: column; }
.macros b { font-size: 1.1rem; }
.macros span { font-size: .75rem; color: var(--muted); }

/* ---------- log ---------- */

.mealgroup { margin-bottom: 14px; }

.mealhead {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 0 4px 6px;
  font-size: .8rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .06em;
  color: var(--muted);
}

.entry {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 6px;
}

.entry-main { flex: 1; min-width: 0; }
.entry-main.editable { cursor: pointer; }
.entry-main.editable:active { opacity: .6; }
.entry-name { font-weight: 600; }
.entry-sub { font-size: .8rem; color: var(--muted); }
.entry-kcal { font-weight: 600; white-space: nowrap; }

.entry .del {
  background: none; border: 0; color: var(--muted);
  font-size: 1.3rem; width: 36px; height: 36px; cursor: pointer;
}
.entry .del:hover { color: var(--danger); }

.empty {
  text-align: center; color: var(--muted);
  padding: 36px 20px; font-size: .95rem;
}

/* ---------- foods list ---------- */

.rowbar { display: flex; gap: 8px; margin-bottom: 12px; }
.rowbar input { flex: 1; }

.fooditem {
  display: flex; align-items: center; gap: 10px;
  width: 100%; text-align: left;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px; margin-bottom: 6px;
  color: var(--text); font: inherit; cursor: pointer;
}
.fooditem .fi-main { flex: 1; min-width: 0; }
.fooditem .fi-name { font-weight: 600; }
.fooditem .fi-sub { font-size: .8rem; color: var(--muted); }

/* ---------- forms ---------- */

input, select, textarea {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  font: inherit;
  padding: 11px 12px;
  width: 100%;
  min-height: 44px;
}

input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.field { display: block; margin-bottom: 10px; }
.field > span {
  display: block; font-size: .78rem; color: var(--muted);
  margin-bottom: 4px;
}

.grid4 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

.btn {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  font: inherit; font-weight: 600;
  padding: 12px 16px;
  min-height: 44px;
  cursor: pointer;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.danger { color: var(--danger); border-color: var(--danger); background: none; }
.btn.wide { display: block; width: 100%; margin-top: 8px; }
.btn.small { padding: 8px 12px; min-height: 38px; font-size: .85rem; }

.hint { color: var(--muted); font-size: .82rem; margin: 0 0 10px; }
.hint-inline { color: var(--muted); font-weight: 400; font-size: .78rem; }
.msg { font-size: .85rem; color: var(--muted); min-height: 1.2em; margin: 8px 0 0; }
.msg.err { color: var(--danger); }
.version { text-align: center; color: var(--muted); font-size: .75rem; }

.helper { margin: 10px 0 4px; }
.helper summary { cursor: pointer; color: var(--muted); font-size: .85rem; padding: 6px 0; }
.helper-body { padding-top: 8px; }
.helper-body p { font-size: .82rem; color: var(--muted); margin-top: 0; }

/* ---------- fab + tabs ---------- */

.fab {
  position: fixed; right: 18px;
  bottom: calc(74px + var(--safe-bottom));
  width: 58px; height: 58px; border-radius: 50%;
  background: var(--accent); color: var(--accent-text);
  border: 0; font-size: 2rem; line-height: 1;
  box-shadow: 0 4px 14px rgba(0,0,0,.3);
  cursor: pointer; z-index: 6;
}

.tabs {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 6;
  display: flex;
  background: var(--surface);
  border-top: 1px solid var(--line);
  padding-bottom: var(--safe-bottom);
}
.tab {
  flex: 1; background: none; border: 0;
  color: var(--muted); font: inherit; font-size: .8rem;
  padding: 16px 4px; cursor: pointer;
}
.tab.is-active { color: var(--accent); font-weight: 700; }

/* ---------- sheets ---------- */

.sheet {
  position: fixed; inset: 0; z-index: 20;
  background: rgba(0,0,0,.5);
  display: flex; align-items: flex-end; justify-content: center;
}
.sheet[hidden] { display: none; }

.sheet-panel {
  background: var(--bg);
  width: 100%; max-width: 640px;
  max-height: 92vh; overflow-y: auto;
  border-radius: 18px 18px 0 0;
  padding: 16px 16px calc(24px + var(--safe-bottom));
}

.sheet-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}
.sheet-head h2 { margin: 0; font-size: 1.1rem; }

.mealtimes { display: flex; gap: 6px; margin-bottom: 12px; }
.mealtimes button {
  flex: 1; background: var(--surface-2);
  border: 1px solid var(--line); border-radius: 999px;
  color: var(--muted); font: inherit; font-size: .8rem;
  padding: 9px 4px; min-height: 40px; cursor: pointer;
}
.mealtimes button.is-active {
  background: var(--accent); border-color: var(--accent);
  color: var(--accent-text); font-weight: 700;
}

.picklist { margin-top: 10px; max-height: 46vh; overflow-y: auto; }

.qtyrow { display: flex; gap: 8px; }
.qtyrow input { flex: 1.3; font-size: 1.4rem; text-align: center; }
.qtyrow input[type="date"] { flex: 1; font-size: 1rem; text-align: left; }
.qtyrow select { flex: 1.4; }

.preview {
  text-align: center; color: var(--muted);
  font-size: .9rem; margin: 14px 0;
  min-height: 2.6em;
}
.preview b { color: var(--text); font-size: 1.5rem; }

.sheet-actions { display: flex; gap: 8px; margin-top: 20px; }
.sheet-actions .btn { flex: 1; }

/* ---------- segmented control ---------- */

.segmented {
  display: flex; gap: 4px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
  margin-bottom: 12px;
}
.segmented button {
  flex: 1; background: none; border: 0; border-radius: 999px;
  color: var(--muted); font: inherit; font-size: .85rem;
  padding: 9px 4px; min-height: 38px; cursor: pointer;
}
.segmented button.is-active {
  background: var(--surface); color: var(--text); font-weight: 700;
}

/* ---------- portion + weigh-to-derive ---------- */

.portionwrap {
  border: 1px solid transparent;
  border-radius: 10px;
  margin-bottom: 8px;
}
.portionrow { display: flex; gap: 8px; margin: 0; align-items: center; }
.portionrow input:first-child { flex: 2; }
.portionrow input.p-grams { flex: 1; }
.portionrow button {
  background: none; border: 0; color: var(--muted);
  font-size: 1.3rem; width: 40px; height: 44px; cursor: pointer;
}
.portionrow .weighbtn {
  width: auto; padding: 0 10px; font-size: .78rem; font-weight: 600;
  border: 1px solid var(--line); border-radius: 8px;
  background: var(--surface-2); height: 40px;
}

.weighstrip {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  margin: 6px 0 0;
}
.weighstrip[hidden] { display: none; }
.weighstrip input { flex: 1; min-width: 110px; }
.weighstrip .w-out { flex-basis: 100%; margin: 0; }

/* ---------- meal rows ---------- */

.itemrow { display: flex; gap: 6px; align-items: center; margin-bottom: 8px; }
.itemrow .m-food { flex: 3; min-width: 0; }
.itemrow .m-qty { flex: 1; min-width: 62px; }
.itemrow .m-portion { flex: 1.6; min-width: 0; }
.itemrow .rowdel {
  background: none; border: 0; color: var(--muted);
  font-size: 1.3rem; width: 34px; height: 44px; cursor: pointer; flex: none;
}
.logrow-name { flex: 3; min-width: 0; font-size: .9rem; }

/* ---------- trend ---------- */

.chart { width: 100%; }
.chartsvg { width: 100%; height: auto; display: block; }
.chartsvg .grid { stroke: var(--line); stroke-width: 1; }
.chartsvg .axis { fill: var(--muted); font-size: 9px; }
.chartsvg .raw { fill: var(--muted); opacity: .45; }
.chartsvg .trendline { fill: none; stroke: var(--accent); stroke-width: 2.5; }

/* ---------- BMI bar ---------- */

.bmibar-wrap { margin: 14px 0 8px; }

.bmibar {
  position: relative;
  display: flex;
  height: 14px;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.bmibar span { display: block; height: 100%; }
.bmibar .tone-low  { background: var(--warn-fill); }
.bmibar .tone-good { background: var(--accent); }
.bmibar .tone-warn { background: var(--likely-fill); }
.bmibar .tone-high { background: var(--danger); }

/* The markers sit under the bar so they never cover the colours. */
.bmimarks { position: relative; height: 30px; margin-top: 2px; }
.bmimark {
  position: absolute;
  transform: translateX(-50%);
  text-align: center;
  font-size: .68rem;
  color: var(--muted);
  white-space: nowrap;
}
.bmimark b { display: block; font-size: .78rem; color: var(--text); }
.bmimark.target::before { color: var(--accent); }
.bmimark.target b { color: var(--accent); }
.bmimark::before {
  content: '▲';
  display: block;
  font-size: .6rem;
  line-height: 1;
  color: var(--text);
}
.bmiscale {
  display: flex; justify-content: space-between;
  font-size: .65rem; color: var(--muted); margin-top: 2px;
}

.bignum { font-size: 1.1rem; }
.bignum b { font-size: 2.1rem; }

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 3px 10px;
  font-size: .72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .05em;
  border: 1px solid var(--line);
  color: var(--muted);
  margin: 6px 0;
}
.badge-ok, .badge-none { }
.badge-low, .badge-watch { color: var(--warn); border-color: var(--warn); }
.badge-likely { color: var(--likely); border-color: var(--likely); }
.badge-confirmed { color: var(--danger); border-color: var(--danger); }

.adjust {
  border-top: 1px solid var(--line);
  margin-top: 14px; padding-top: 12px;
}

/* ---------- scanner ---------- */

.scanstage {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
/* The video is built and torn down by scan.js, so it gets its own box and
   the aiming frame sits above it untouched. */
.scanvideo { position: absolute; inset: 0; }
.scanvideo video {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

/* A window to aim through. Barcodes are wide and short, so this is too. */
.reticle {
  position: absolute; left: 8%; right: 8%; top: 30%; bottom: 30%;
  border: 2px solid rgba(255,255,255,.85);
  border-radius: 8px;
  box-shadow: 0 0 0 100vmax rgba(0,0,0,.35);
  pointer-events: none;
}

.notes {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  color: var(--muted);
  font-size: .82rem;
  padding: 10px 12px;
  margin: 0 0 12px;
}
.notes[hidden] { display: none; }

/* ---------- toast ---------- */

.toast {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(90px + var(--safe-bottom)); z-index: 40;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 18px;
  font-size: .88rem;
  box-shadow: 0 4px 14px rgba(0,0,0,.3);
  max-width: 90vw;
}
.toast[hidden] { display: none; }
.toast button {
  background: none; border: 0; padding: 0 0 0 14px;
  color: var(--accent); font: inherit; font-weight: 700; cursor: pointer;
}

/* A caveat folded behind one line. */
.why { margin-top: 10px; }
.why summary { cursor: pointer; color: var(--muted); font-size: .85rem; }
.why .hint { margin-top: 6px; }