/* #174: Component Finder styles. Light and dark via prefers-color-scheme; no build step.
   Desktop: full width (max 1800px), sticky two-row filter bar, dense sortable table.
   Under 900px: filters in a slide-out panel, result rows as cards. */
:root {
  --bg: #f8fafc; --surface: #ffffff; --surface-2: #f1f5f9; --hover: #f0f9ff; --border: #e2e8f0; --border-strong: #cbd5e1;
  --text: #0f172a; --muted: #64748b; --accent: #16a34a; --accent-text: #ffffff; --link: #1d4ed8;
  --ok: #15803d; --ok-bg: #dcfce7; --soon: #a16207; --soon-bg: #fef9c3; --later: #9a3412; --later-bg: #ffedd5;
  --out: #64748b; --out-bg: #f1f5f9; --warn: #b45309; --down: #16a34a; --up: #dc2626;
  --radius: 10px; --shadow: 0 1px 2px rgb(15 23 42 / 0.06), 0 1px 3px rgb(15 23 42 / 0.08);
  --top-h: 53px; --fbar-h: 0px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1120; --surface: #111827; --surface-2: #1f2937; --hover: #172033; --border: #334155; --border-strong: #475569;
    --text: #e2e8f0; --muted: #94a3b8; --accent: #22c55e; --accent-text: #052e16; --link: #93c5fd;
    --ok: #86efac; --ok-bg: #14532d; --soon: #fde047; --soon-bg: #422006; --later: #fdba74; --later-bg: #431407;
    --out: #94a3b8; --out-bg: #1f2937; --warn: #fbbf24; --down: #4ade80; --up: #f87171;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
body.panel-open { overflow: hidden; }
a { color: var(--link); }
h2 { font-size: 1.2rem; margin: 0 0 .5rem; }
.muted { color: var(--muted); }
button, input, select { font: inherit; color: inherit; }
[hidden] { display: none !important; }

.top { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 1rem; padding: .55rem max(24px, calc((100vw - 1800px) / 2 + 24px));
  background: var(--surface); border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: .5rem; font-weight: 650; color: inherit; text-decoration: none; }
.tabs { display: flex; gap: .25rem; margin-left: auto; }
.tabs a { padding: .4rem .7rem; border-radius: 8px; color: var(--muted); text-decoration: none; font-weight: 550; }
.tabs a[aria-current="page"] { background: var(--surface-2); color: var(--text); }

main { max-width: 1800px; margin: 0 auto; padding: 0 24px 2rem; }
.view.narrow { max-width: 900px; padding-top: 1rem; }

/* ---- Buttons and small controls ---- */
button.ghost, button.primary { padding: .3rem .7rem; border-radius: 7px; border: 1px solid var(--border); background: var(--surface); cursor: pointer; white-space: nowrap; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
button.link { border: 0; background: none; color: var(--link); cursor: pointer; padding: .15rem .3rem; text-decoration: underline; }
button:disabled { opacity: .55; cursor: default; }
.inline { display: inline-flex; gap: .35rem; align-items: center; }
.inline select, .fbar select, .fbar input[type="number"], .fbar input[type="search"] {
  padding: .25rem .4rem; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); height: 1.9rem; }
.check { display: flex; gap: .4rem; align-items: center; cursor: pointer; }
.fc > .check { height: 1.9rem; }
.chips { display: flex; flex-wrap: wrap; gap: .25rem; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span { display: inline-flex; align-items: center; height: 1.9rem; padding: 0 .55rem; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); white-space: nowrap; }
.chip span small { color: var(--muted); margin-left: .25rem; }
.chip input:checked + span { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
.chip input:focus-visible + span { outline: 2px solid var(--link); outline-offset: 2px; }

/* ---- Filter bar (desktop) ---- */
.fbar { position: sticky; top: var(--top-h); z-index: 20; background: var(--bg); padding: .6rem 0 .5rem; border-bottom: 1px solid var(--border); }
.filters { display: grid; gap: .45rem; }
.panel-head { display: none; }
.frow { display: flex; flex-wrap: wrap; gap: .45rem .9rem; align-items: flex-end; }
.frow-more { display: none; padding-top: .45rem; border-top: 1px dashed var(--border); }
.frow-more.open { display: flex; }
.fg { display: flex; flex-direction: column; gap: .15rem; min-width: 0; }
.fl { font-size: .72rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; white-space: nowrap; }
.fc { display: flex; gap: .25rem; align-items: center; flex-wrap: nowrap; }
.fc .dash { color: var(--muted); }
.fbar input[type="number"] { width: 5.2rem; }
.fg-search { flex: 1 1 180px; }
.fg-search input { width: 100%; }
.fg-search .fc { width: 100%; }
.tri select { width: auto; }
.more-toggle { justify-self: start; border: 0; background: none; color: var(--link); cursor: pointer; padding: 0; font-weight: 600; }

details.dd { position: relative; }
details.dd summary { list-style: none; display: inline-flex; align-items: center; gap: .3rem; height: 1.9rem; padding: 0 .55rem; min-width: 6.5rem;
  border: 1px solid var(--border); border-radius: 6px; background: var(--surface); cursor: pointer; white-space: nowrap; }
details.dd summary::-webkit-details-marker { display: none; }
details.dd summary::after { content: "▾"; margin-left: auto; color: var(--muted); }
details.dd[open] summary { border-color: var(--border-strong); }
.dd-menu { position: absolute; z-index: 25; top: calc(100% + 4px); left: 0; min-width: 210px; max-height: 320px; overflow: auto; padding: .4rem;
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 8px; box-shadow: 0 8px 24px rgb(15 23 42 / .15); display: grid; gap: .1rem; }
.dd-menu .check { padding: .25rem .35rem; border-radius: 5px; white-space: nowrap; }
.dd-menu .check:hover { background: var(--hover); }

.statusbar { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem .8rem; margin-top: .55rem; }
.filters-btn { display: none; gap: .3rem; align-items: center; }
.active-chips { flex: 1 1 300px; align-items: center; min-height: 1.7rem; }
.achip { display: inline-flex; align-items: center; gap: .3rem; height: 1.6rem; padding: 0 .55rem; border-radius: 999px; font-size: .82rem;
  border: 1px solid var(--border-strong); background: var(--surface-2); color: var(--text); cursor: pointer; }
.achip span { color: var(--muted); font-size: 1rem; line-height: 1; }
.achip:hover span { color: var(--up); }
.achip.fixed { cursor: default; border-style: dashed; color: var(--muted); }
.status-right { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem .8rem; margin-left: auto; }
.summary { color: var(--muted); font-variant-numeric: tabular-nums; }

/* ---- Results table ---- */
.list { margin-top: .5rem; }
table.results { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.results th { position: sticky; top: calc(var(--top-h) + var(--fbar-h)); z-index: 10; background: var(--surface-2); text-align: left; font-weight: 600;
  font-size: .78rem; color: var(--muted); padding: 0; border-bottom: 1px solid var(--border); white-space: nowrap; }
.results th:first-child { border-top-left-radius: var(--radius); }
.results th:last-child { border-top-right-radius: var(--radius); padding: .45rem .6rem; }
.th-sort { all: unset; display: flex; align-items: center; gap: .25rem; width: 100%; box-sizing: border-box; padding: .45rem .6rem; cursor: pointer; }
.th-sort:hover, .th-sort.active { color: var(--text); }
.th-sort:focus-visible { outline: 2px solid var(--link); outline-offset: -2px; }
.th-sort .arrow { font-size: .7rem; opacity: .45; }
.th-sort.active .arrow { opacity: 1; color: var(--accent); }
.results th.c-num .th-sort { justify-content: flex-end; }
.results td { padding: .4rem .6rem; border-bottom: 1px solid var(--border); vertical-align: middle; font-variant-numeric: tabular-nums; }
.results tbody tr:last-child td { border-bottom: 0; }
.results tbody tr { cursor: pointer; }
.results tbody tr:hover td { background: var(--hover); }
.c-num { text-align: right; white-space: nowrap; }
.c-title { min-width: 280px; }
.c-title a { color: inherit; font-weight: 600; text-decoration: none; }
.c-title a:hover { text-decoration: underline; }
.tags { display: flex; flex-wrap: wrap; gap: .2rem; margin-top: .15rem; }
.tag { font-size: .7rem; padding: 0 .35rem; border-radius: 4px; background: var(--surface-2); color: var(--muted); border: 1px solid var(--border); }
.c-config, .c-ddr, .c-avail { white-space: nowrap; }
.c-store { white-space: nowrap; }
.c-store .offers, .c-store .seen { display: block; font-size: .75rem; color: var(--muted); }
.c-store .offers { color: var(--ok); }
.c-price strong { font-size: .98rem; }
.c-price .local { display: block; font-size: .75rem; color: var(--muted); }
.c-spark { width: 132px; }
.when { display: block; font-size: .75rem; color: var(--muted); margin-top: .1rem; }
.badge { display: inline-block; padding: .05rem .45rem; border-radius: 999px; font-size: .75rem; font-weight: 600; white-space: nowrap; }
.badge.in_stock { color: var(--ok); background: var(--ok-bg); }
.badge.within_7d { color: var(--soon); background: var(--soon-bg); }
.badge.backorder { color: var(--later); background: var(--later-bg); }
.badge.out_of_stock { color: var(--out); background: var(--out-bg); }
.unsure { color: var(--warn); font-weight: 700; cursor: help; }
.unknown { color: var(--warn); cursor: help; }
.na-dash { color: var(--muted); opacity: .6; cursor: help; }
.spark { width: 120px; height: 26px; display: block; }
.spark.down { color: var(--down); } .spark.up { color: var(--up); } .spark.flat { color: var(--muted); }
.spark-none { display: inline-block; width: 120px; text-align: center; }
.empty { padding: 2rem; text-align: center; color: var(--muted); background: var(--surface); border: 1px dashed var(--border); border-radius: var(--radius); }
.more { display: block; margin: 1rem auto; }

/* ---- Stores, alerts, toast ---- */
table.stores { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
table.stores th, table.stores td { text-align: left; padding: .5rem .7rem; border-bottom: 1px solid var(--border); font-size: .9rem; }
table.stores th { background: var(--surface-2); font-weight: 600; }
.table-wrap { overflow-x: auto; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow); margin-bottom: 1rem; }
.toast { position: fixed; left: 50%; bottom: 1.25rem; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: .5rem .9rem;
  border-radius: 8px; font-size: .9rem; z-index: 60; }
.stack { display: flex; flex-direction: column; gap: .2rem; font-size: .8rem; color: var(--muted); flex: 1; min-width: 0; }
.stack input { color: var(--text); }
.row { display: flex; gap: .6rem; }
.alerts-head { display: flex; justify-content: space-between; align-items: center; gap: .5rem; margin: 1.25rem 0 .6rem; flex-wrap: wrap; }
.alerts-head h2 { margin: 0; }
.row-actions { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.alert-row { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.alert-row > div:first-child { min-width: 0; flex: 1 1 260px; }
.editor { display: grid; gap: .8rem; }
.editor h2 { margin: 0; }
.editor input:not([type="checkbox"]), .editor select { padding: .4rem .55rem; border: 1px solid var(--border); border-radius: 7px; background: var(--surface); width: 100%; }
.editor fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: .3rem; }
.editor legend { font-weight: 600; font-size: .85rem; margin-bottom: .3rem; }
.field .label { font-weight: 600; font-size: .85rem; margin-bottom: .15rem; }
.field button { margin: .4rem 0 .2rem; }
.small-text { font-size: .82rem; }
button.small { padding: .2rem .55rem; font-size: .85rem; }
a.button { display: inline-block; padding: .3rem .7rem; border-radius: 7px; border: 1px solid var(--border); background: var(--surface); color: inherit; text-decoration: none; }
.error { color: #dc2626; }

/* ---- Narrow screens: slide-out filters, card rows ---- */
@media (max-width: 899px) {
  .top { padding: .5rem 16px; }
  .brand span { display: none; }
  main { padding: 0 16px 2rem; }
  body { font-size: 15px; }

  .fbar { position: static; padding: .6rem 0 0; border-bottom: 0; }
  .filters { position: fixed; z-index: 50; top: 0; bottom: 0; left: 0; width: min(88vw, 380px); overflow-y: auto; padding: 0 16px 1.5rem;
    background: var(--surface); border-right: 1px solid var(--border); box-shadow: 4px 0 24px rgb(15 23 42 / .2);
    transform: translateX(-105%); transition: transform .2s ease; display: block; visibility: hidden; }
  .filters.open { transform: none; visibility: visible; }
  .panel-head { display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; z-index: 1;
    padding: .8rem 0; margin-bottom: .3rem; background: var(--surface); border-bottom: 1px solid var(--border); }
  .panel-backdrop { position: fixed; inset: 0; z-index: 45; background: rgb(15 23 42 / .45); }
  .frow, .frow-more, .frow-more.open { display: grid; gap: .8rem; padding: .4rem 0; border: 0; }
  .frow-more { border-top: 1px solid var(--border); margin-top: .4rem; padding-top: .8rem; }
  .more-toggle { display: none; }
  .fc { flex-wrap: wrap; }
  .fbar input[type="number"] { width: 100%; flex: 1; }
  .fc select { flex: 1; }
  .dd-menu { position: static; box-shadow: none; margin-top: .3rem; max-height: none; }
  details.dd summary { width: 100%; }

  .statusbar { gap: .5rem; }
  .filters-btn { display: inline-flex; }
  .active-chips { order: 3; flex-basis: 100%; }
  .status-right { margin-left: 0; width: 100%; justify-content: space-between; order: 2; }
  .status-right .summary { width: 100%; }

  table.results, .results tbody { display: block; background: none; border: 0; }
  .results thead { display: none; }
  .results tbody tr { display: flex; flex-wrap: wrap; align-items: baseline; gap: .15rem .7rem; margin-bottom: .5rem; padding: .65rem .75rem;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
  .results tbody tr:hover td { background: none; }
  .results td { display: block; padding: 0; border: 0; }
  .results td.c-title { flex-basis: 100%; min-width: 0; margin-bottom: .2rem; }
  .results td.c-config { font-weight: 600; }
  .results td[data-label]::after { content: " " attr(data-label); color: var(--muted); font-size: .8rem; }
  .results td.c-pergb::after { content: "/GB"; }
  .results td.c-avail { flex-basis: 100%; order: 10; }
  .results td.c-avail .when { display: inline; margin-left: .4rem; }
  .results td.c-store { order: 11; flex: 1; white-space: normal; font-size: .85rem; }
  .results td.c-store .offers, .results td.c-store .seen { display: inline; margin-left: .4rem; white-space: nowrap; }
  .results td.na { display: none; }
  .results td.c-price { order: 12; text-align: right; }
  .results td.c-price .local { display: inline; margin-left: .3rem; }
  .results td.c-pergb { order: 13; color: var(--muted); font-size: .85rem; }
  .results td.c-spark { display: none; }
  .c-num { text-align: left; }
}