/* Etiqueta de estantería: el precio por kg/L/ud es lo importante y se dibuja como la etiqueta del súper. */
:root {
  --pasillo: #e8ebee;
  --etiqueta: #ffffff;
  --tinta: #1d2228;
  --tinta-2: #55606b;
  --linea: #cbd2d8;
  --amarillo: #ffd21f;
  --sobre-amarillo: #1d2228;
  --ahorro: #0a7448;
  --aviso: #9a4a00;
  --foco: #0a58b8;
  --c-mercadona: #1e9e5a;
  --c-dia: #e3262e;
  --c-lidl: #0a58b8;
  --c-alimerka: #8a5cc2;
  --c-froiz: #00897b;
  --r-tag: 3px;
  --r-caja: 10px;
  --nav-h: 56px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --pasillo: #111417;
    --etiqueta: #1b2025;
    --tinta: #eef1f3;
    --tinta-2: #9aa5af;
    --linea: #343c44;
    --ahorro: #49d598;
    --aviso: #ffb35c;
    --foco: #6aa8ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--pasillo);
  color: var(--tinta);
  font-family: "Archivo", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.45;
  padding-bottom: calc(var(--nav-h) + 24px);
}
a { color: inherit; }
:focus-visible { outline: 3px solid var(--foco); outline-offset: 2px; }
button, input, select { font: inherit; color: inherit; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- cabecera ---------- */
.top { max-width: 920px; margin: 0 auto; padding: 18px 16px 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 16px; }
.top h1 { margin: 0; font-size: 1.5rem; font-weight: 800; font-variation-settings: "wdth" 80; letter-spacing: 0.01em; }
.stamp { margin: 0; color: var(--tinta-2); font-size: 0.875rem; }
.banner { max-width: 920px; margin: 0 auto 8px; padding: 0 16px; }
.banner p { margin: 0 0 6px; padding: 8px 12px; border-left: 4px solid var(--aviso); background: var(--etiqueta); border-radius: 0 var(--r-caja) var(--r-caja) 0; font-size: 0.875rem; }

/* ---------- navegación ---------- */
.tabs { position: fixed; z-index: 10; left: 0; right: 0; bottom: 0; height: var(--nav-h); display: grid; grid-template-columns: repeat(4, 1fr); background: var(--etiqueta); border-top: 1px solid var(--linea); }
.tabs a { display: flex; align-items: center; justify-content: center; gap: 6px; text-decoration: none; font-weight: 600; font-size: 0.95rem; border-top: 3px solid transparent; color: var(--tinta-2); }
.tabs a[aria-current="page"] { color: var(--tinta); border-top-color: var(--amarillo); }
.count { min-width: 1.4em; padding: 0 6px; border-radius: 999px; background: var(--amarillo); color: var(--sobre-amarillo); font-size: 0.78rem; font-weight: 800; line-height: 1.5; text-align: center; }
@media (min-width: 760px) {
  body { padding-bottom: 48px; }
  .tabs { position: static; max-width: 920px; margin: 0 auto 8px; padding: 0 16px; background: none; border: 0; height: auto; display: flex; gap: 4px; }
  .tabs a { padding: 10px 16px 8px; border-top: 0; border-bottom: 3px solid transparent; }
  .tabs a[aria-current="page"] { border-bottom-color: var(--amarillo); }
}

main { max-width: 920px; margin: 0 auto; padding: 8px 16px 0; }
h2 { margin: 24px 0 8px; font-size: 1.25rem; font-weight: 800; font-variation-settings: "wdth" 85; }
h3 { margin: 0; font-size: 1rem; font-weight: 700; }
.muted { color: var(--tinta-2); }
.small { font-size: 0.875rem; }

/* ---------- controles ---------- */
.search { width: 100%; padding: 14px 16px; border: 2px solid var(--tinta); border-radius: var(--r-caja); background: var(--etiqueta); font-size: 1.15rem; }
.row { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; margin: 12px 0; }
.seg { display: inline-flex; border: 1.5px solid var(--tinta); border-radius: 999px; overflow: hidden; background: var(--etiqueta); }
.seg label { cursor: pointer; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: block; padding: 6px 14px; font-weight: 600; font-size: 0.9rem; }
.seg input:checked + span { background: var(--tinta); color: var(--pasillo); }
.seg input:focus-visible + span { outline: 3px solid var(--foco); outline-offset: -3px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border: 1.5px solid var(--linea); border-radius: 999px; background: var(--etiqueta); cursor: pointer; font-size: 0.9rem; font-weight: 600; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip:has(input:checked) { border-color: var(--tinta); box-shadow: inset 0 0 0 1px var(--tinta); }
.chip:has(input:checked)::before { content: "✓"; font-weight: 800; }
.chip:has(input:not(:checked)) { border-style: dashed; color: var(--tinta-2); }
.chip:has(input:focus-visible) { outline: 3px solid var(--foco); outline-offset: 2px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--tinta-2); flex: none; }
.dot.mercadona { background: var(--c-mercadona); }
.dot.dia { background: var(--c-dia); }
.dot.lidl { background: var(--c-lidl); }
.dot.alimerka { background: var(--c-alimerka); }
.dot.froiz { background: var(--c-froiz); }
.btn { padding: 8px 16px; border: 1.5px solid var(--tinta); border-radius: 999px; background: var(--etiqueta); font-weight: 700; cursor: pointer; }
.btn.primary { background: var(--tinta); color: var(--pasillo); }
.btn.small { padding: 4px 12px; font-size: 0.875rem; }
.btn.ghost { border-color: var(--linea); font-weight: 600; }
.btn:hover { border-color: var(--foco); }
.btn:disabled { opacity: 0.5; cursor: default; }
.link { background: none; border: 0; padding: 4px; color: var(--tinta-2); text-decoration: underline; cursor: pointer; font-size: 0.875rem; }
select, input[type="number"] { padding: 6px 8px; border: 1.5px solid var(--linea); border-radius: 6px; background: var(--etiqueta); }

/* ---------- etiqueta de precio ---------- */
.tag { display: inline-flex; flex-direction: column; align-items: flex-end; min-width: 86px; padding: 4px 10px 5px; background: var(--etiqueta); border: 1.5px solid var(--tinta); border-radius: var(--r-tag); line-height: 1; text-align: right; }
.tag b { font-size: 1.85rem; font-weight: 800; font-variation-settings: "wdth" 62; letter-spacing: 0.01em; font-variant-numeric: tabular-nums; }
.tag small { margin-top: 3px; font-size: 0.72rem; font-weight: 600; color: var(--tinta-2); font-variation-settings: "wdth" 90; }
.tag.best { background: var(--amarillo); color: var(--sobre-amarillo); }
.tag.best small { color: var(--sobre-amarillo); }
.tag.sm { min-width: 70px; padding: 3px 8px 4px; }
.tag.sm b { font-size: 1.35rem; }
.tag.none { border-style: dashed; border-color: var(--linea); background: transparent; color: var(--tinta-2); justify-content: center; min-height: 40px; font-size: 0.8rem; }

/* ---------- filas ---------- */
.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.item { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; align-items: center; padding: 10px 12px; background: var(--etiqueta); border-radius: var(--r-caja); }
.item .name { font-weight: 600; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.item .meta { display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: center; font-size: 0.85rem; color: var(--tinta-2); }
.item .side { grid-row: 1 / span 2; grid-column: 2; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.badge { padding: 1px 8px; border: 1.5px solid var(--tinta-2); border-radius: var(--r-tag); font-size: 0.75rem; font-weight: 700; }
.badge.pl { border-color: var(--ahorro); color: var(--ahorro); }
.badge.promo { border-color: var(--aviso); color: var(--aviso); }
.badge.club { border-color: var(--foco); color: var(--foco); }
.price-line { font-variant-numeric: tabular-nums; }

.card { background: var(--etiqueta); border-radius: var(--r-caja); padding: 14px 16px; margin: 12px 0; }
.card header { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 4px 12px; margin-bottom: 8px; }
.cmp { display: grid; gap: 6px; }
.cmp-row { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; align-items: center; padding: 6px 0; border-top: 1px solid var(--linea); }
.cmp-row:first-child { border-top: 0; }
.cmp-row .who { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.cmp-row .what { grid-column: 1; font-size: 0.85rem; color: var(--tinta-2); }
.cmp-row .tag, .cmp-row .tagwrap { grid-column: 2; grid-row: 1 / span 2; }
.save { color: var(--ahorro); font-weight: 800; }

.empty { padding: 24px 16px; text-align: center; color: var(--tinta-2); }
.groups { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }

/* ---------- cesta ---------- */
.basket-item { background: var(--etiqueta); border-radius: var(--r-caja); padding: 12px; display: grid; gap: 8px; }
.basket-item .head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 12px; align-items: center; }
.stepper { display: inline-flex; align-items: center; border: 1.5px solid var(--tinta); border-radius: 999px; overflow: hidden; }
.stepper button { width: 36px; height: 34px; border: 0; background: none; font-size: 1.2rem; font-weight: 800; cursor: pointer; }
.stepper input { width: 64px; height: 34px; border: 0; border-inline: 1.5px solid var(--linea); text-align: center; background: transparent; font-weight: 700; border-radius: 0; padding: 0; }
.chain-prices { display: grid; grid-template-columns: repeat(auto-fit, minmax(118px, 1fr)); gap: 8px; }
.chain-prices > div { display: grid; gap: 4px; justify-items: start; font-size: 0.8rem; }
.chain-prices .lbl { display: flex; align-items: center; gap: 6px; font-weight: 700; }
.chain-prices .what { color: var(--tinta-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.totals { width: 100%; border-collapse: collapse; }
.totals th, .totals td { padding: 8px 6px; text-align: left; border-top: 1px solid var(--linea); vertical-align: middle; }
.totals th { font-weight: 700; }
.totals td.num, .totals th.num { text-align: right; font-variant-numeric: tabular-nums; }
.totals tr.win td { background: color-mix(in srgb, var(--amarillo) 28%, transparent); }
.plan { border: 2px solid var(--tinta); }
.plan .big { font-size: 1.15rem; font-weight: 800; margin: 0 0 4px; }

/* ---------- lista ---------- */
.shop-group { background: var(--etiqueta); border-radius: var(--r-caja); padding: 12px 14px; margin: 12px 0; }
.shop-group header { display: flex; justify-content: space-between; align-items: center; gap: 8px; border-bottom: 1px solid var(--linea); padding-bottom: 8px; margin-bottom: 4px; }
.shop-group h3 { display: flex; align-items: center; gap: 8px; font-size: 1.1rem; }
.line { display: grid; grid-template-columns: auto 1fr auto; gap: 4px 10px; align-items: start; padding: 8px 0; border-top: 1px solid var(--linea); }
.line:first-of-type { border-top: 0; }
.line input[type="checkbox"] { width: 22px; height: 22px; margin: 2px 0 0; accent-color: var(--tinta); }
.line.done .what { text-decoration: line-through; color: var(--tinta-2); }
.line .what { font-weight: 600; }
.line .sub { grid-column: 2; font-size: 0.85rem; color: var(--tinta-2); }
.line .cost { font-variant-numeric: tabular-nums; font-weight: 700; }
.ship-note { margin: 8px 0 0; font-size: 0.875rem; }
.warn { color: var(--aviso); font-weight: 600; }

footer { max-width: 920px; margin: 24px auto 0; padding: 0 16px; color: var(--tinta-2); font-size: 0.8rem; }

@media (max-width: 420px) {
  .tag b { font-size: 1.6rem; }
  .tag { min-width: 76px; }
}
@media (prefers-reduced-motion: no-preference) {
  .btn, .chip, .tabs a { transition: border-color 0.12s, background-color 0.12s; }
}

/* ---------- aviso breve ---------- */
.toast { position: fixed; z-index: 20; left: 50%; bottom: calc(var(--nav-h) + 16px); transform: translateX(-50%); padding: 8px 16px; background: var(--tinta); color: var(--pasillo); border-radius: 999px; font-weight: 600; font-size: 0.9rem; opacity: 0; pointer-events: none; }
.toast.show { opacity: 1; }
@media (min-width: 760px) { .toast { bottom: 24px; } }
details.card summary { cursor: pointer; }
details.card[open] summary { margin-bottom: 8px; }

/* ---------- pegar lista y comparativa ---------- */
.paste { width: 100%; min-height: 110px; padding: 10px 12px; font: inherit; color: inherit; background: var(--pasillo); border: 1.5px solid var(--linea); border-radius: 8px; resize: vertical; }
.paste:focus { outline: 2px solid var(--foco); outline-offset: 1px; }
.review.off { opacity: 0.95; border: 1.5px dashed var(--linea); }
.review select { max-width: 100%; }
.scroll { overflow-x: auto; }
.cmp-table th, .cmp-table td { white-space: nowrap; }
.cmp-table td:first-child, .cmp-table th:first-child { white-space: normal; min-width: 130px; }
.cmp-table td.best { background: color-mix(in srgb, var(--amarillo) 40%, transparent); font-weight: 800; color: inherit; }
.cmp-table tfoot th { border-top: 2px solid var(--tinta); }
.pair .big { font-size: 1.1rem; font-weight: 800; margin: 8px 0 4px; }

/* ---------- marca en la pantalla de fin de prueba ---------- */
.brand-logo { background: #000; border-radius: var(--r-caja); padding: 16px; display: flex; justify-content: center; margin: 0 0 14px; }
.brand-logo img { max-width: 100%; height: auto; max-height: 170px; }
.tabs[hidden] { display: none !important; }