:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --card: #fff;
  --surface-2: #f1f5f9;   /* table headers, count pills */
  --field: #fff;          /* form control background */
  --ink: #1f2430;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #2563eb;      /* links / focus */
  --btn-bg: #2563eb;      /* primary buttons (white text on top) */
  --on-accent: #fff;
  --severe: #dc2626;
  --moderate: #ea580c;
  --mild: #ca8a04;
  --sensitivity: #6b7280;
  --ok: #16a34a;
  --no: #dc2626;
  --notice-bg: #fff7ed;
  --notice-line: #fed7aa;
  --notice-ink: #9a3412;
  --chip-bg: #eef2ff;
  --chip-ink: #3730a3;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

/* Dark palette. Applied on an explicit choice AND when the OS prefers dark and
   the user hasn't explicitly picked light. Severity/ok/no stay saturated (they
   back white-text badges + dots), so they are intentionally NOT overridden here.
   The two blocks below must stay in sync (CSS can't share a var list across a
   media query and a plain selector). */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1420;
  --card: #171d2b;
  --surface-2: #1f2736;
  --field: #1b2230;
  --ink: #e6e9ef;
  --muted: #9aa4b2;
  --line: #2a3142;
  --accent: #7cb0ff;
  --notice-bg: #2a2015;
  --notice-line: #5a3d1a;
  --notice-ink: #fdba74;
  --chip-bg: #232a4d;
  --chip-ink: #c7d2fe;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0f1420;
    --card: #171d2b;
    --surface-2: #1f2736;
    --field: #1b2230;
    --ink: #e6e9ef;
    --muted: #9aa4b2;
    --line: #2a3142;
    --accent: #7cb0ff;
    --notice-bg: #2a2015;
    --notice-line: #5a3d1a;
    --notice-ink: #fdba74;
    --chip-bg: #232a4d;
    --chip-ink: #c7d2fe;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
main { max-width: 900px; margin: 0 auto; padding: 1.25rem; }
h1 { font-size: 1.6rem; margin: 0.2rem 0 1rem; }
h2 { font-size: 1.15rem; margin: 1.5rem 0 0.6rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 0.6rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: var(--shadow);
}
.brand { font-weight: 700; }
.topbar nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; margin-left: auto; }
.topbar nav a { color: var(--muted); padding: 0.2rem 0; }
.topbar nav a.active { color: var(--ink); font-weight: 600; }
.topbar nav a.logout { color: var(--no); }

.cards { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 0.5rem 0 1rem; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 0.75rem 1rem; min-width: 140px;
}
.card .k { color: var(--muted); font-size: 0.8rem; }
.card .v { font-size: 1.4rem; font-weight: 700; }

table { width: 100%; border-collapse: collapse; background: var(--card);
  border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 0.55rem 0.7rem; border-bottom: 1px solid var(--line); }
th { background: var(--surface-2); font-size: 0.82rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; }
tr:last-child td { border-bottom: none; }
td.empty, li.empty { color: var(--muted); font-style: italic; }

.badge { display: inline-block; padding: 0.1rem 0.5rem; border-radius: 999px;
  font-size: 0.75rem; font-weight: 700; color: #fff; text-transform: capitalize; }
.sev-severe { background: var(--severe); }
.sev-moderate { background: var(--moderate); }
.sev-mild { background: var(--mild); }
.sev-sensitivity { background: var(--sensitivity); }

.notice { background: var(--notice-bg); border: 1px solid var(--notice-line); color: var(--notice-ink);
  padding: 0.6rem 0.9rem; border-radius: 8px; margin: 0.5rem 0; }

.foodgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.foodcol { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 0.5rem 1rem 1rem; }
.foodcol.ok h2 { color: var(--ok); }
.foodcol.no h2 { color: var(--no); }
.foodcol ul { margin: 0; padding-left: 1.1rem; }
@media (max-width: 640px) { .foodgrid { grid-template-columns: 1fr; } }

form.stack { background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 1rem; max-width: 480px; margin: 1rem 0; }
form.stack label { display: block; margin: 0.5rem 0 0.2rem; font-size: 0.85rem; color: var(--muted); }
input, select, textarea { width: 100%; padding: 0.5rem; border: 1px solid var(--line);
  border-radius: 8px; font: inherit; background: var(--field); color: var(--ink); }
input[type=checkbox] { width: auto; }
button, .btn { background: var(--btn-bg); color: var(--on-accent); border: none; border-radius: 8px;
  padding: 0.5rem 1rem; font: inherit; font-weight: 600; cursor: pointer; margin-top: 0.75rem; }
button.danger { background: var(--no); }
button.small { padding: 0.25rem 0.6rem; font-size: 0.8rem; margin: 0; }
.row-actions { display: flex; gap: 0.4rem; }

.login-wrap { max-width: 360px; margin: 4rem auto; }
.login-wrap h1 { text-align: center; }
.err { color: var(--no); font-size: 0.9rem; margin: 0.5rem 0; }
.ok-msg { color: var(--ok); font-size: 0.9rem; margin: 0.5rem 0; }

.disclaimer { max-width: 900px; margin: 2rem auto 1rem; padding: 0 1.25rem;
  color: var(--muted); font-size: 0.8rem; text-align: center; }

.filelist { list-style: none; padding: 0; }
.filelist li { display: flex; justify-content: space-between; gap: 1rem; align-items: center;
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 0.5rem 0.8rem; margin-bottom: 0.5rem; }
.filelist li form { margin: 0; }

.muted { color: var(--muted); }
textarea { resize: vertical; }
label.chk { display: flex; align-items: center; gap: 0.4rem; }
label.chk input { margin: 0; }

.adder { margin: 0.5rem 0 1rem; }
.adder summary { cursor: pointer; color: var(--accent); font-weight: 600; }
.adder .stack { margin-top: 0.5rem; }

/* Allergen edit cards */
.edit-card { background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 0.8rem 1rem; margin-bottom: 0.75rem; }
.edit-card .grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem 0.75rem;
  margin: 0; align-items: end; }
.edit-card .grid label { display: flex; flex-direction: column; font-size: 0.75rem;
  color: var(--muted); gap: 0.15rem; margin: 0; }
.edit-card .grid label.wide { grid-column: 1 / -1; }
.edit-card .grid label.chk { grid-column: 1 / -1; flex-direction: row; align-items: center;
  font-size: 0.85rem; color: var(--ink); }
.edit-card .grid .row-actions { grid-column: 1 / -1; }
.edit-card .grid input, .edit-card .grid select { padding: 0.35rem 0.5rem; }
@media (max-width: 640px) { .edit-card .grid { grid-template-columns: 1fr 1fr; } }

/* Blood-work report: grouped foods + dot scale */
.bw-legend { display: flex; flex-wrap: wrap; align-items: center; gap: 0.35rem;
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 0.5rem 0.8rem; margin: 0.75rem 0 1rem; font-size: 0.85rem; color: var(--muted); }
.dots { display: inline-flex; gap: 2px; vertical-align: middle; }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot.green { background: #16a34a; }
.dot.orange { background: #ea580c; }
.dot.red { background: #dc2626; }
.bw-groups { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; align-items: start; }
@media (max-width: 640px) { .bw-groups { grid-template-columns: 1fr; } }
.bw-group { background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 0.6rem 0.9rem 0.8rem; }
.bw-group.empty { opacity: 0.7; }
.bw-group h3 { display: flex; align-items: center; gap: 0.5rem; margin: 0.2rem 0 0.5rem;
  font-size: 1rem; }
.bw-group .gcount { margin-left: auto; font-size: 0.75rem; color: var(--muted);
  background: var(--surface-2); border-radius: 999px; padding: 0.05rem 0.5rem; }
.foodrows { list-style: none; margin: 0; padding: 0; }
.food { display: flex; align-items: center; gap: 0.5rem; padding: 0.25rem 0;
  border-bottom: 1px dashed var(--line); }
.food:last-child { border-bottom: none; }
.food .fname { flex: 1; }
.food .fval { font-variant-numeric: tabular-nums; font-weight: 600; font-size: 0.9rem; }
.food .unit { font-weight: 400; color: var(--muted); font-size: 0.8rem; }
.food.lvl-high .fval { color: var(--severe); }
.food.lvl-intermediate .fval { color: var(--moderate); }

.synbox { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center;
  margin-top: 0.6rem; padding-top: 0.6rem; border-top: 1px dashed var(--line); }
.synlist { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.chip { display: inline-flex; align-items: center; gap: 0.25rem; background: var(--chip-bg);
  color: var(--chip-ink); border-radius: 999px; padding: 0.1rem 0.5rem; font-size: 0.8rem; }
.chip form.chipdel { margin: 0; display: inline; }
.linkbtn { background: none; border: none; color: var(--chip-ink); cursor: pointer;
  padding: 0; margin: 0; font-size: 0.9rem; line-height: 1; }
.syadd { display: flex; gap: 0.4rem; margin: 0; }
.syadd input { padding: 0.3rem 0.5rem; font-size: 0.85rem; }
.delrow { margin: 0.6rem 0 0; }