:root {
  color-scheme: light;
  --surface-0: #f6f6f4;
  --surface-1: #fcfcfb;
  --border: #dddcd7;
  --grid: #ebeae6;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #77766f;
  --series-1: #2a78d6;
  --band: rgba(42, 120, 214, 0.16);
  --model-line: #a9a8a1;
  --outside: rgba(120, 118, 110, 0.10);
  --good: #0f7a3d;
  --bad: #b3261e;
  --warn-bg: #fff7e6;
  --warn-border: #eda100;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --surface-0: #121211;
    --surface-1: #1a1a19;
    --border: #3a3936;
    --grid: #2a2a28;
    --text-primary: #f0efec;
    --text-secondary: #c3c2b7;
    --text-muted: #96958c;
    --series-1: #3987e5;
    --band: rgba(57, 135, 229, 0.22);
    --model-line: #6b6a64;
    --outside: rgba(200, 198, 190, 0.08);
    --good: #4cc27a;
    --bad: #ff8a80;
    --warn-bg: #2a2214;
    --warn-border: #c98500;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --surface-0: #121211; --surface-1: #1a1a19; --border: #3a3936; --grid: #2a2a28;
  --text-primary: #f0efec; --text-secondary: #c3c2b7; --text-muted: #96958c;
  --series-1: #3987e5; --band: rgba(57, 135, 229, 0.22); --model-line: #6b6a64;
  --outside: rgba(200, 198, 190, 0.08); --good: #4cc27a; --bad: #ff8a80;
  --warn-bg: #2a2214; --warn-border: #c98500;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--surface-0); color: var(--text-primary); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
header { padding-top: 24px; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: 0.3em 0; }
h2 { margin-top: 2em; font-size: 1.35rem; }
h3 { font-size: 1.05rem; }
a { color: var(--series-1); }
.crumb, .sub, .small { color: var(--text-secondary); font-size: 0.92rem; }
.lede { font-size: 1.08rem; color: var(--text-secondary); }
.warn { background: var(--warn-bg); border-left: 4px solid var(--warn-border); padding: 12px 14px; border-radius: 6px; font-size: 0.95rem; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.grid .couple { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
fieldset { background: var(--surface-1); border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px 16px; margin: 0; min-width: 0; }
legend { font-weight: 600; padding: 0 6px; }
label { display: block; font-size: 0.9rem; color: var(--text-secondary); margin-top: 8px; }
label.inline { display: inline-block; }
label.check { display: flex; gap: 8px; align-items: center; }
input, select { display: block; width: 100%; margin-top: 3px; padding: 7px 9px; font: inherit; color: var(--text-primary); background: var(--surface-0); border: 1px solid var(--border); border-radius: 6px; }
label.check input { width: auto; display: inline; margin: 0; }
small { display: block; color: var(--text-muted); font-size: 0.8rem; }
.refuse { margin-top: 20px; padding: 14px 16px; border: 1px solid var(--bad); border-radius: 8px; background: var(--surface-1); }
.tiles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.tiles.three { grid-template-columns: repeat(3, 1fr); }
.tile { background: var(--surface-1); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; }
.tile .k { font-size: 0.82rem; color: var(--text-secondary); }
.tile .v { font-size: 1.6rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.tile .r { font-size: 0.8rem; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.tile.out .v { color: var(--text-muted); }
.tile .flag { font-size: 0.75rem; color: var(--text-muted); }
.support { font-size: 0.9rem; color: var(--text-secondary); }
.chart-card { background: var(--surface-1); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; margin: 16px 0; }
.chart svg { width: 100%; height: auto; display: block; }
.chart text { fill: var(--text-secondary); font-size: 11px; font-variant-numeric: tabular-nums; }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 0.85rem; color: var(--text-secondary); margin: 6px 0; }
.legend i { display: inline-block; width: 18px; height: 10px; margin-right: 5px; vertical-align: middle; border-radius: 2px; }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.9rem; font-variant-numeric: tabular-nums; background: var(--surface-1); }
th, td { text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--grid); }
th { color: var(--text-secondary); font-weight: 600; }
td.num, th.num { text-align: right; }
tr.out td { color: var(--text-muted); }
details { margin: 10px 0; }
summary { cursor: pointer; color: var(--series-1); }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.changes { padding-left: 1.3em; }
.changes li { margin: 4px 0; }
.changes li.note { list-style: none; margin-left: -1.3em; }
.changes .d { font-variant-numeric: tabular-nums; font-weight: 600; }
.up { color: var(--good); }
.down { color: var(--bad); }
.bars { display: grid; grid-template-columns: minmax(140px, 220px) 1fr 70px; gap: 4px 10px; align-items: center; font-size: 0.88rem; margin-top: 10px; }
.bars .track { position: relative; height: 14px; }
.bars .axis { position: absolute; left: 50%; top: -2px; bottom: -2px; width: 1px; background: var(--text-muted); }
.bars .bar { position: absolute; top: 2px; height: 10px; border-radius: 3px; background: var(--series-1); }
.bars .val { text-align: right; font-variant-numeric: tabular-nums; color: var(--text-secondary); }
.path { font-size: 0.9rem; }
.limits { margin: 2em 0 3em; }
.limits li { margin: 6px 0; }
.tip { position: fixed; pointer-events: none; background: var(--surface-1); color: var(--text-primary); border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; font-size: 0.82rem; box-shadow: 0 4px 14px rgba(0,0,0,.15); font-variant-numeric: tabular-nums; z-index: 10; }
.tip b { font-weight: 600; }
.lens { margin-top: 8px; }
.lens h2 { margin-top: 1em; }
.lens-card { background: var(--surface-1); border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; margin-top: 10px; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 4px 14px; margin: 0; font-size: 0.9rem; }
.facts dt { color: var(--text-secondary); font-weight: 600; }
.facts dd { margin: 0; }
.note { font-size: 0.9rem; color: var(--text-secondary); }
.share { margin: 12px 0 0; }
.share small { margin-top: 4px; }
button { font: inherit; padding: 7px 12px; border-radius: 6px; border: 1px solid var(--series-1); background: var(--surface-1); color: var(--series-1); cursor: pointer; }
button:hover { background: var(--band); }
:focus-visible { outline: 2px solid var(--series-1); outline-offset: 2px; }
tr.ref td { font-weight: 600; }
button.link { border: 0; padding: 0; background: none; color: var(--series-1); text-decoration: underline; cursor: pointer; }
button.link:hover { background: none; }
/* Views (tabs) and the comparison panels */
.modes { margin-top: 18px; }
.modes [role="tablist"] { display: flex; flex-wrap: wrap; gap: 6px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.modes [role="tab"] { border-color: var(--border); color: var(--text-secondary); }
.modes [role="tab"][aria-selected="true"] { border-color: var(--series-1); color: var(--surface-1); background: var(--series-1); }
.view { margin-top: 8px; }
textarea { display: block; width: 100%; margin-top: 3px; padding: 7px 9px; font: 0.85rem/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--text-primary); background: var(--surface-0); border: 1px solid var(--border); border-radius: 6px; }
input[type="file"] { padding: 5px; }
.actions button { margin: 4px 4px 4px 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; margin: 12px 0; }
.card-actions { margin: 10px 0 0; display: flex; gap: 6px; flex-wrap: wrap; }
.tag { display: inline-block; font-size: 0.8rem; padding: 1px 7px; border-radius: 10px; border: 1px solid var(--series-1); color: var(--series-1); white-space: nowrap; }
td small, .wi-val small, .wi-label small { display: block; }
.out-cell { color: var(--text-muted); }
caption { text-align: left; font-size: 0.9rem; color: var(--text-secondary); padding: 6px 0; }
.refuse-inline { padding: 10px 12px; border: 1px solid var(--bad); border-radius: 8px; background: var(--surface-1); }
.rules fieldset { margin-top: 8px; }
.rule { border-bottom: 1px solid var(--grid); padding: 6px 0; }
fieldset.excl { display: flex; flex-wrap: wrap; gap: 0 14px; padding: 4px 10px 8px; margin: 4px 0 0; border-radius: 8px; }
fieldset.excl legend { font-weight: 400; font-size: 0.82rem; color: var(--text-muted); }
fieldset.excl label { margin-top: 4px; }
.traits { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; }
.trait h4 { margin: 10px 0 4px; font-size: 0.95rem; }
.whatifs { list-style: none; padding: 0; margin: 10px 0; }
.wi { display: grid; grid-template-columns: minmax(160px, 1.2fr) 1fr minmax(170px, 1.1fr); gap: 6px 12px; align-items: center; padding: 6px 0; border-bottom: 1px solid var(--grid); font-size: 0.9rem; }
.wi.combined { border-top: 2px solid var(--border); font-weight: 600; }
.wi .track { position: relative; height: 14px; }
.wi .axis { position: absolute; left: 50%; top: -3px; bottom: -3px; width: 1px; background: var(--text-muted); }
.wi .bar { position: absolute; top: 2px; height: 10px; border-radius: 3px; }
.wi .bar.pos { background: var(--series-1); }
.wi .bar.neg { background: var(--bad); opacity: 0.75; }
.wi-val { font-variant-numeric: tabular-nums; }
.wi-val small { color: var(--text-muted); font-weight: 400; }
@media (max-width: 760px) {
  .facts { grid-template-columns: 1fr; }
  .facts dd { margin-bottom: 6px; }
  .grid, .two { grid-template-columns: 1fr; }
  .grid .couple { grid-template-columns: 1fr; }
  .tiles { grid-template-columns: repeat(2, 1fr); }
  .tiles.three { grid-template-columns: 1fr; }
  h1 { font-size: 1.5rem; }
  .wi { grid-template-columns: 1fr; }
  .traits { grid-template-columns: 1fr; }
}
/* Published-evidence layer and NCHS baselines */
.lit-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 4px 16px; background: var(--surface-1); border: 1px solid var(--border); border-radius: 10px; padding: 4px 16px 14px; }
.lit-grid small { margin-top: 3px; }
.lit-list { padding-left: 1.2em; font-size: 0.9rem; }
.lit-list li { margin: 4px 0; }
.lit-applied { padding-left: 1.3em; font-size: 0.9rem; }
.lit-applied li { margin: 10px 0; }
.lit-label { margin: 14px 0 8px; font-size: 0.92rem; color: var(--text-secondary); }
.tile.lit { border-style: dashed; }
.tile.lit .r b { color: var(--text-primary); font-weight: 600; }
.cite { font-size: 0.85rem; color: var(--text-secondary); margin-top: 4px; overflow-wrap: anywhere; }
.cite blockquote { margin: 6px 0; padding: 4px 10px; border-left: 3px solid var(--border); color: var(--text-primary); font-style: italic; }
th.grp { background: var(--surface-0); color: var(--text-primary); }
#literature { margin-top: 0; }
/* Summary across lenses and the grouped questions of the newer lenses */
.summary { margin-top: 18px; }
.summary h2 { margin-top: 0.6em; }
.synthesis { background: var(--surface-1); border: 1px solid var(--border); border-left: 4px solid var(--series-1); border-radius: 8px; padding: 4px 14px; margin: 10px 0 12px; font-size: 0.93rem; }
.synthesis p { margin: 8px 0; }
td.ests { min-width: 180px; }
.est { display: inline-block; margin: 0 14px 4px 0; white-space: nowrap; }
.est small { white-space: normal; }
td small { color: var(--text-muted); }
details.qgroup { border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px; margin: 12px 0 0; background: var(--surface-0); }
details.qgroup > summary { font-weight: 600; }
small.used { margin: 4px 0 0; }
fieldset.sub { margin-top: 10px; padding: 6px 10px 10px; background: var(--surface-1); }
fieldset.sub legend { font-weight: 600; font-size: 0.88rem; }
.host-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 10px; border-top: 1px solid var(--grid); padding: 4px 0; }
.host-row > span { grid-column: 1 / -1; display: block; font-size: 0.88rem; font-weight: 600; margin-top: 4px; }
.couple-extra { grid-column: 1 / -1; }
th small { font-weight: 400; color: var(--text-muted); }
@media (max-width: 760px) {
  .host-row { grid-template-columns: 1fr; }
  .est { display: block; white-space: normal; }
}
/* Compare scenarios: the saved list, the lens picker, the side-by-side grid and small multiples */
.vh { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.scen-save { display: flex; flex-wrap: wrap; gap: 0 12px; align-items: end; }
.scen-save label { flex: 1 1 240px; }
.scen-save .actions { margin: 8px 0 0; }
.scen-list { list-style: decimal; padding-left: 1.6em; margin: 8px 0; }
.scen-item { background: var(--surface-1); border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px 8px; margin: 0 0 8px; }
.scen-item.base { border-color: var(--series-1); }
.scen-head { display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: center; }
.scen-head .scen-name { flex: 1 1 200px; margin-top: 0; }
.scen-head label.check { margin-top: 0; }
.scen-btns { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.scen-btns button { padding: 4px 10px; font-size: 0.88rem; }
button:disabled { opacity: 0.45; cursor: not-allowed; }
.lens-picks { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 2px 16px; }
.lens-pick { display: flex; gap: 8px; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--grid); padding: 2px 0; }
.lens-pick label { margin-top: 4px; }
.lens-pick label.hz select { width: auto; padding: 4px 6px; }
.scen-grid table { min-width: 560px; }
.scen-grid th[scope="row"] { min-width: 150px; max-width: 240px; font-weight: 600; color: var(--text-primary); overflow-wrap: anywhere; }
.scen-grid td { min-width: 170px; vertical-align: top; }
.scen-grid td b { font-size: 1.05rem; }
.scen-grid .flags { margin-top: 3px; }
.tag.warn-tag { border-color: var(--warn-border); color: var(--text-primary); background: var(--warn-bg); }
td small.up, td small.down { font-weight: 600; }
td small.up { color: var(--good); }
td small.down { color: var(--bad); }
.sm-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 12px; }
.sm-card { background: var(--surface-1); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; margin: 0; min-width: 0; }
.sm-card figcaption { font-size: 0.9rem; margin-bottom: 6px; }
.sm-row { display: grid; grid-template-columns: minmax(70px, 34%) 1fr 92px; gap: 8px; align-items: center; font-size: 0.82rem; padding: 3px 0; }
.sm-row.base .sm-name { font-weight: 700; }
.sm-name { overflow: hidden; overflow-wrap: anywhere; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; line-height: 1.25; }
.sm-track { position: relative; height: 16px; background: linear-gradient(var(--grid), var(--grid)) left center / 100% 1px no-repeat; }
.sm-track.none { background: none; }
.sm-range { position: absolute; top: 4px; height: 8px; min-width: 2px; border-radius: 4px; background: var(--band); border: 1px solid var(--series-1); box-sizing: border-box; }
.sm-dot { position: absolute; top: 2px; width: 12px; height: 12px; margin-left: -6px; border-radius: 50%; background: var(--series-1); border: 2px solid var(--surface-1); }
.sm-row.base .sm-dot { background: var(--text-primary); }
.sm-row.out .sm-dot { background: var(--surface-1); border: 2px solid var(--series-1); }
.sm-base { position: absolute; top: -3px; bottom: -3px; width: 0; border-left: 1px dashed var(--text-muted); }
.sm-val { text-align: right; font-variant-numeric: tabular-nums; }
.sm-val small { font-size: 0.72rem; }
.sm-axis { padding-top: 0; }
.sm-ticks { position: relative; height: 14px; font-size: 0.72rem; color: var(--text-muted); }
.sm-ticks span { position: absolute; transform: translateX(-50%); white-space: nowrap; }
.sm-ticks span:first-child { transform: none; }
.sm-ticks span:last-child { transform: translateX(-100%); }
#scenLinkOut { font-size: 0.8rem; }
@media (max-width: 760px) {
  .sm-grid { grid-template-columns: 1fr; }
  .sm-row { grid-template-columns: minmax(60px, 30%) 1fr 78px; }
}
.scen-grid td small b { font-size: inherit; }
.stage { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: baseline; margin-top: 16px; }
.stage legend { font-weight: 600; }
.stage label { display: flex; gap: 6px; align-items: baseline; margin: 0; color: var(--text-primary); font-size: 1rem; }
.stage label input { width: auto; display: inline; margin: 0; }
.stage label small { display: inline; }
.stage p { flex-basis: 100%; margin: 4px 0 0; }