:root {
  --bg: #f6f5f2; --card: #ffffff; --ink: #1d1d1b; --muted: #6b6a66; --line: #e3e1db;
  --accent: #c2410c; --accent-ink: #ffffff; --good: #15803d; --warn: #b45309; --info: #475569; --off: #9ca3af;
  --radius: 10px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink); background: var(--bg);
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #151514; --card: #1f1f1d; --ink: #ecebe7; --muted: #a3a29c; --line: #34332f; --accent: #f97316; --accent-ink: #151514; --good: #4ade80; --warn: #fbbf24; --info: #94a3b8; }
}
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.45; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.top { border-bottom: 1px solid var(--line); background: var(--card); }
.top-inner { display: flex; justify-content: space-between; align-items: center; height: 56px; }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; letter-spacing: .2px; }
.status-link { font-size: 14px; color: var(--muted); text-decoration: none; border: 1px solid var(--line); padding: 4px 10px; border-radius: 999px; }
h1 { font-size: 28px; margin: 32px 0 8px; }
h2 { margin: 0; font-size: 22px; }
.lede { color: var(--muted); margin: 0 0 20px; max-width: 680px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.search { position: relative; }
.search input { width: 100%; font-size: 18px; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); color: var(--ink); }
.search input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.suggest { position: absolute; z-index: 5; left: 0; right: 0; top: 100%; margin: 4px 0 0; padding: 4px; list-style: none; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.suggest li { padding: 8px 12px; border-radius: 6px; cursor: pointer; }
.suggest li:hover, .suggest li[aria-selected="true"] { background: var(--bg); }
.settings { display: flex; flex-wrap: wrap; gap: 14px 22px; align-items: end; margin: 16px 0 8px; font-size: 14px; }
.seg { border: 0; padding: 0; margin: 0; display: flex; gap: 6px; align-items: center; }
.seg legend { float: left; margin-right: 8px; color: var(--muted); }
.seg label { border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; cursor: pointer; background: var(--card); }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label:has(input:checked) { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.seg label:has(input:focus-visible) { outline: 2px solid var(--accent); }
.field { display: flex; flex-direction: column; gap: 4px; color: var(--muted); }
.field select, .field input { font-size: 14px; padding: 5px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--ink); }
.pct input { width: 64px; margin-right: 4px; }
.check { display: flex; gap: 6px; align-items: center; color: var(--muted); }
.result { margin: 28px 0; }
.item-head { display: flex; gap: 16px; align-items: center; margin-bottom: 14px; }
.icon { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.best { display: flex; justify-content: space-between; align-items: center; gap: 16px; background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--good); border-radius: var(--radius); padding: 16px 20px; margin-bottom: 16px; }
.best.none { border-left-color: var(--warn); display: block; }
.best-label { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.best-price { font-size: 32px; font-weight: 700; margin: 2px 0; }
.btn { background: var(--accent); color: var(--accent-ink); text-decoration: none; padding: 10px 18px; border-radius: 8px; font-weight: 600; white-space: nowrap; }
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
td.strong { font-weight: 700; }
td.site { font-weight: 600; min-width: 120px; }
td.site .small { font-weight: 400; }
tr.is-best td { background: color-mix(in srgb, var(--good) 8%, transparent); }
tr.dim td { color: var(--muted); }
td.fresh { color: var(--good); white-space: nowrap; }
td.stale { color: var(--warn); white-space: nowrap; }
.flags { display: flex; flex-wrap: wrap; gap: 4px; min-width: 170px; max-width: 320px; }
.badge { font-size: 12px; padding: 2px 8px; border-radius: 6px; border: 1px solid currentColor; line-height: 1.4; }
.badge.warn { color: var(--warn); }
.badge.info { color: var(--info); }
.badge.off { color: var(--off); }
.link { color: var(--accent); font-weight: 600; }
.nav { display: flex; gap: 14px; align-items: center; font-size: 14px; }
.nav a:not(.status-link) { color: var(--muted); }
.best-method { font-size: 16px; font-weight: 500; color: var(--muted); }
.by-method { display: flex; flex-direction: column; gap: 2px; font-size: 12px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.by-method .chosen { font-weight: 700; color: var(--ink); }
.by-method .na { color: var(--off); }
.ref { font-size: 10px; text-transform: uppercase; letter-spacing: .4px; margin-left: 6px; padding: 1px 5px; border: 1px solid currentColor; border-radius: 4px; opacity: .8; vertical-align: middle; }
.btn .ref { border-color: var(--accent-ink); }
td.actions { white-space: nowrap; }
td.actions > * { display: block; margin: 0 0 6px; }
td.actions .link .ref { display: block; margin: 2px 0 0; width: max-content; }
.linkbtn { background: none; border: 0; padding: 0; margin-right: 10px; color: var(--info); text-decoration: underline; cursor: pointer; font: inherit; }
tr.details-row td { background: var(--bg); }
.details { display: flex; flex-wrap: wrap; gap: 12px 32px; padding: 4px 0; }
.breakdown { width: auto; min-width: 280px; font-size: 13px; }
.breakdown td { padding: 3px 8px; border-bottom: 1px dashed var(--line); }
.breakdown tr.total td { font-weight: 700; border-bottom: 0; }
.facts { margin: 0; padding-left: 18px; max-width: 520px; font-size: 13px; color: var(--muted); }
.facts li { margin: 2px 0; }
.grow { flex: 1; }
.approx { color: var(--muted); font-size: 15px; margin-bottom: 2px; }
.btn-secondary { background: var(--card); color: var(--ink); border: 1px solid var(--line); border-radius: 8px; padding: 8px 14px; font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap; }
.btn-secondary:hover { border-color: var(--ink); }
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 12px 0 0; align-items: center; }
.chip { display: flex; align-items: center; gap: 4px; background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 4px 6px 4px 12px; font-size: 14px; }
.chip a { color: var(--ink); text-decoration: none; }
.chip-x { border: 0; background: none; color: var(--muted); font-size: 18px; line-height: 1; cursor: pointer; padding: 0 4px; }
.notice { background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--warn); border-radius: var(--radius); padding: 10px 14px; margin-bottom: 12px; }
.plan-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 14px; margin: 12px 0; }
.plan-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; }
.plan-card header { display: flex; align-items: flex-start; gap: 8px; }
.plan-card h3 { margin: 0; font-size: 18px; }
.plan-total { margin-left: auto; text-align: right; }
.plan-total strong { font-size: 20px; }
.plan-items td { padding: 6px 4px; border-bottom: 1px solid var(--line); }
.plan-items td.actions > * { margin: 0; }
.baseline { margin: 8px 0; color: var(--muted); }
.baseline summary { cursor: pointer; }
.prose { max-width: 760px; }
.prose h2 { margin-top: 28px; font-size: 20px; }
.prose li { margin: 4px 0; }
.foot { color: var(--muted); font-size: 13px; padding-top: 24px; padding-bottom: 40px; border-top: 1px solid var(--line); margin-top: 40px; }
@media (max-width: 640px) { h1 { font-size: 22px; } .best { flex-direction: column; align-items: flex-start; } }
.deal-item { display: flex; align-items: center; gap: 10px; min-width: 220px; }
.deal-item a { color: var(--ink); font-weight: 600; text-decoration: none; }
.deal-item a:hover { text-decoration: underline; }
.good { color: var(--good); }
#filters .field input { width: 90px; }

/* ---------------------------------------------------------------- price history chart */
/* Emphasis form: series 1 = the story (accent), context = grey. Values from the dataviz reference palette,
   validated against this site's card surfaces (#ffffff light, #1f1f1d dark). */
.viz-root {
  --viz-s1: #2a78d6; --viz-ctx: #898781; --viz-grid: #e1e0d9; --viz-axis: #c3c2b7;
  --viz-ink: #0b0b0b; --viz-ink-2: #52514e; --viz-muted: #898781; --viz-surface: var(--card);
}
@media (prefers-color-scheme: dark) {
  .viz-root { --viz-s1: #3987e5; --viz-ctx: #898781; --viz-grid: #2c2c2a; --viz-axis: #383835; --viz-ink: #f0efec; --viz-ink-2: #c3c2b7; }
}
.viz-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; margin: 18px 0; }
.viz-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.viz-head h3 { margin: 0; font-size: 17px; }
.viz-ranges { margin-left: auto; }
.viz-ranges button { border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; background: var(--card); color: var(--ink); font: inherit; font-size: 13px; cursor: pointer; }
.viz-ranges button.on { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.viz-legend { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; font-size: 13px; margin: 8px 0 2px; color: var(--viz-ink-2); }
.viz-legend > span { display: inline-flex; align-items: center; gap: 6px; }
.viz-key { display: inline-block; width: 14px; height: 0; border-top: 2px solid; border-radius: 2px; }
.viz-key.viz-s1 { border-color: var(--viz-s1); }
.viz-key.viz-ctx { border-color: var(--viz-ctx); }
.viz-box { position: relative; width: 100%; }
.viz-svg { display: block; width: 100%; height: auto; outline: none; }
.viz-svg:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.viz-grid { stroke: var(--viz-grid); stroke-width: 1; }
.viz-axis { stroke: var(--viz-axis); stroke-width: 1; }
.viz-tick { fill: var(--viz-muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.viz-line { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.viz-line.viz-s1 { stroke: var(--viz-s1); }
.viz-line.viz-ctx { stroke: var(--viz-ctx); }
.viz-dot { stroke: var(--viz-surface); stroke-width: 2; }
.viz-dot.viz-s1 { fill: var(--viz-s1); }
.viz-dot.viz-ctx { fill: var(--viz-ctx); }
.viz-label { fill: var(--viz-ink); font-size: 12px; font-weight: 600; }
.viz-label-2 { fill: var(--viz-ink-2); font-size: 12px; }
.viz-cross { stroke: var(--viz-axis); stroke-width: 1; }
.viz-tip { position: absolute; pointer-events: none; background: var(--card); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 6px 18px rgba(0,0,0,.12); padding: 8px 10px; font-size: 13px; min-width: 190px; }
.viz-tip-time { color: var(--viz-muted); font-size: 12px; margin-bottom: 4px; }
.viz-tip-row { display: flex; align-items: center; gap: 8px; }
.viz-tip-row strong { font-variant-numeric: tabular-nums; }
.viz-table { margin-top: 8px; font-size: 13px; color: var(--muted); }
.viz-table summary { cursor: pointer; }
.viz-table table { font-size: 13px; }
.report { flex-basis: 100%; }
.report-form { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; margin-top: 4px; }
.report-form fieldset { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: center; }
.report-form legend { float: left; margin-right: 8px; color: var(--muted); }
.report-note { flex: 1; min-width: 200px; font: inherit; font-size: 13px; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--ink); }
.report-form .btn-secondary { padding: 6px 12px; font-size: 13px; }

/* ---------------------------------------------------------------- settings panel + phones */
.settings-box > summary { display: none; } /* wide screens: always open, no summary line */
.settings-box > summary::-webkit-details-marker { display: none; }

@media (max-width: 720px) {
  .wrap { padding: 0 14px; }
  .top-inner { height: auto; flex-wrap: wrap; gap: 4px 12px; padding: 10px 0; }
  .nav { width: 100%; overflow-x: auto; white-space: nowrap; gap: 16px; font-size: 14px; scrollbar-width: none; padding-bottom: 2px; }
  .nav::-webkit-scrollbar { display: none; }
  .status-link { padding: 2px 8px; }
  h1 { font-size: 21px; margin-top: 18px; }
  .lede { font-size: 14px; margin-bottom: 14px; }
  .search input { font-size: 16px; padding: 12px 14px; } /* 16px stops iOS zooming into the field */

  .settings-box > summary { display: flex; justify-content: space-between; align-items: center; gap: 8px; cursor: pointer; list-style: none;
    margin: 12px 0 4px; padding: 10px 12px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); font-size: 14px; }
  .settings-box > summary::after { content: 'Edit'; color: var(--accent); font-weight: 600; }
  .settings-box[open] > summary::after { content: 'Done'; }
  .settings { gap: 12px 16px; }
  .seg label { padding: 7px 12px; }

  .item-head { flex-wrap: wrap; }
  .item-head .btn-secondary { width: 100%; }
  .best { padding: 12px 14px; }
  .best-price { font-size: 28px; }
  .btn { display: block; width: 100%; text-align: center; padding: 12px 18px; }

  /* tables become cards */
  .table-wrap { border: 0; background: transparent; overflow: visible; }
  table.cards, table.cards > tbody { display: block; }
  table.cards > thead { display: none; }
  table.cards > tbody > tr { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; background: var(--card); border: 1px solid var(--line);
    border-radius: var(--radius); padding: 12px 14px; margin-bottom: 10px; }
  table.cards > tbody > tr[hidden] { display: none !important; }
  table.cards > tbody > tr > td { display: block; padding: 0; border: 0; text-align: left; }
  table.cards > tbody > tr > td[data-label]::before { content: attr(data-label); display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .4px;
    color: var(--muted); font-weight: 600; margin-bottom: 2px; }
  table.cards > tbody > tr > .c-site, table.cards > tbody > tr > .c-notes, table.cards > tbody > tr > .c-actions { grid-column: 1 / -1; }
  table.cards > tbody > tr > td.c-notes:has(.flags:empty) { display: none; }
  table.cards > tbody > tr > .c-actions { display: flex; gap: 20px; align-items: center; padding-top: 4px; border-top: 1px solid var(--line); }
  table.cards > tbody > tr > .c-actions > * { margin: 0; padding: 6px 0; }
  table.cards > tbody > tr.is-best { border-left: 4px solid var(--good); }
  table.cards > tbody > tr.is-best > td { background: none; }
  table.cards > tbody > tr.details-row { display: block; margin-top: -6px; padding: 12px 14px; }
  table.cards > tbody > tr.details-row > td { display: block; background: none; }
  .flags { min-width: 0; max-width: none; }
  .by-method { flex-direction: row; flex-wrap: wrap; gap: 2px 10px; }
  .details { gap: 10px; }
  .breakdown { min-width: 0; width: 100%; }
  .plan-grid { grid-template-columns: 1fr; }
  .viz-ranges { margin-left: 0; }
  .report-note { min-width: 0; width: 100%; }
}