:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --accent: #2a78d6;
  --err: #d03b3b;
  --s-fat: #2a78d6;
  --s-carb: #eb6834;
  --s-fiber: #1baf7a;
  --s-protein: #eda100;
  --s-kcal: #e87ba4;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --ink: #ffffff;
    --ink2: #c3c2b7;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --accent: #3987e5;
    --s-fat: #3987e5;
    --s-carb: #d95926;
    --s-fiber: #199e70;
    --s-protein: #c98500;
    --s-kcal: #d55181;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: #1a1a19;
  --ink: #ffffff;
  --ink2: #c3c2b7;
  --grid: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.10);
  --accent: #3987e5;
  --s-fat: #3987e5;
  --s-carb: #d95926;
  --s-fiber: #199e70;
  --s-protein: #c98500;
  --s-kcal: #d55181;
}

* { box-sizing: border-box; }
body {
  margin: 0 auto;
  max-width: 960px;
  padding: 16px;
  background: var(--page);
  color: var(--ink);
  font: 15px system-ui, -apple-system, "Segoe UI", sans-serif;
}
input, select, button {
  font: inherit;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
}
input[type=number] { width: 80px; }
button { cursor: pointer; }
button:hover { border-color: var(--accent); }
button.link { border: 0; background: none; color: var(--accent); padding: 0; }
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; flex-wrap: wrap; gap: 8px; }
nav { display: flex; gap: 4px; }
nav button.on { background: var(--accent); color: #fff; border-color: var(--accent); }
.row { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin: 8px 0; }
.err { color: var(--err); min-height: 1em; margin: 4px 0; }
.muted { color: var(--muted); }
#login, #pwchange { max-width: 320px; margin: 60px auto; }
#login form, #pwchange form { display: flex; flex-direction: column; gap: 8px; }
table { border-collapse: collapse; width: 100%; margin: 8px 0; background: var(--surface); font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 5px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--ink2); font-weight: 600; }
td input { width: 100%; min-width: 60px; }
#food-filter, #meal-filter { width: 100%; max-width: 320px; }
.picker { max-height: 260px; overflow-y: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; }
.picker button { display: block; width: 100%; text-align: left; border: 0; border-bottom: 1px solid var(--border); border-radius: 0; background: none; }
.picker button.on { background: var(--accent); color: #fff; }
.picker button.on .muted { color: inherit; }
.picker p { margin: 8px; }
.meal { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; margin: 8px 0; }
.meal-head { display: flex; justify-content: space-between; }
.chart { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 8px; margin: 8px 0; }
.chart h4 { margin: 0 0 4px; font-size: 13px; display: flex; flex-wrap: wrap; align-items: center; gap: 4px 14px; }
.chart h4 .key { display: inline-flex; align-items: center; gap: 6px; }
.chart h4 i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; }
.chart svg { width: 100%; height: auto; display: block; }
.chart text { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.chart .grid { stroke: var(--grid); stroke-width: 1; }
.chart .base { stroke: var(--axis); stroke-width: 1; }
.chart .hit { fill: transparent; }
.chart .hit:hover + .bar, .chart .bar:hover { opacity: 0.8; }
#tip {
  position: fixed;
  pointer-events: none;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 13px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

@media (pointer: coarse) {
  input, select, button { min-height: 44px; font-size: 16px; }
  button.link { min-height: 0; padding: 8px 4px; }
  .picker button { min-height: 44px; }
}

@media (max-width: 640px) {
  body { padding: 12px 12px calc(76px + env(safe-area-inset-bottom)); }
  nav {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
    background: var(--surface); border-top: 1px solid var(--border);
    padding: 6px 8px calc(6px + env(safe-area-inset-bottom));
  }
  nav button { flex: 1; }
  header { justify-content: flex-end; }
  #food-add input[name=name], #food-filter, #meal-filter { flex: 1 1 100%; max-width: none; }
  #food-add input[type=number] { flex: 1 1 20%; width: auto; min-width: 0; }
  #food-add select, #food-add button { flex: 1 1 40%; }
  #meal-qty { flex: 1; width: auto; }
  label:has(#meal-ts) { flex: 1 1 100%; display: flex; align-items: center; gap: 6px; }
  #meal-ts { flex: 1; min-width: 0; }
  #meal-save { flex: 1 1 100%; }
  .picker { max-height: 45vh; }

  table.cards thead { display: none; }
  table.cards tr {
    display: grid; grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 2px 8px; padding: 8px; border-bottom: 1px solid var(--border);
  }
  table.cards td, table.cards th { border: 0; padding: 2px 0; }
  table.cards tr > :first-child { grid-column: 1 / -1; font-weight: 600; }
  table.cards tr > :last-child:not([data-l]) { grid-column: 1 / -1; text-align: right; }
  table.cards tr > :empty { display: none; }
  table.cards [data-l]::before { content: attr(data-l); display: block; font-size: 11px; font-weight: 400; color: var(--muted); }
  #st-table th, #st-table td { padding: 4px 6px; font-size: 13px; }
}