/* ============================================================
   AB Test Pro — v2 "Significance Report" editorial skin
   Paper/ink palette · Alegreya Sans · Courier Prime · Gloock
   ============================================================ */

:root {
  --paper: #f7f4ed;
  --ink: #0E111A;
  --ink-dim: #575149;
  --ink-faint: #6b6355;
  --rule: #ddd6c6;
  --field: #fffdf8;
  --field-border: #c2b9a6;
  --accent: #f15b40;
  --pass: #2f7d4f;
  --fail: #b8362b;
  --warn: #8f6a12;
  --s-control: #8d857a;
  --s-a: #f15b40;
  --s-b: #8f6a12;
  --s-c: #4b3fbf;

  /* Coral edge shared by every unselected control: secondary buttons, tabs,
     toggles, pills. Derived from --accent, so each theme gets its own. */
  --edge: color-mix(in srgb, var(--accent) 50%, transparent);

  /* aliases so any legacy variable references still resolve */
  --danger: var(--fail);
  --win: var(--pass);
  --fg: var(--ink);
  --fg-muted: var(--ink-dim);
  --fg-dim: var(--ink-faint);

  --sans: "Alegreya Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "Courier Prime", ui-monospace, "SF Mono", Menlo, monospace;
  --serif: "Gloock", Georgia, "Times New Roman", serif;
}

:root[data-theme="ink"] {
  --paper: #0E111A;
  --ink: #f2eee4;
  --ink-dim: #a49c8e;
  --ink-faint: #9a9182;
  --rule: #2e2b25;
  --field: #090B13;
  --field-border: #121319;
  --accent: #ff7357;
  --pass: #5fbf85;
  --fail: #e0655a;
  --warn: #d5a442;
  --s-control: #8d857a;
  --s-a: #ff7357;
  --s-b: #d5a442;
  --s-c: #8c7cf0;
}

* { box-sizing: border-box; }
/* The UA's [hidden] rule is display:none, which any author display wins over.
   Without this, hiding anything that also has a display rule silently fails. */
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding: 0 0 90px;
  transition: background .2s ease, color .2s ease;
}
::placeholder { color: var(--ink-faint); }
input, select, textarea, button { font-family: var(--sans); }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.num { font-variant-numeric: tabular-nums; }
.mono { font-family: var(--mono); }
.serif { font-family: var(--serif); }

/* ── Layout ── */
.doc { max-width: 1180px; margin: 0 auto; padding: 0 40px; }

/* Header */
.masthead {
  display: flex; align-items: flex-end; justify-content: space-between;
  padding: 34px 0 14px; border-bottom: 2px solid var(--ink);
}
/* Logo spans both rows; wordmark sits above its descriptor. Grid rather than
   nested markup so the mobile rules can still reorder the three as siblings. */
/* The brand is the way back to the marketing site, so it has to read as a
   link rather than as decoration. */
.mast-brand {
  display: grid; grid-template-columns: auto 1fr;
  grid-template-areas: "logo title" "logo kicker";
  align-items: center; column-gap: 7px; row-gap: 3px;
  color: inherit;
}
/* The global a:hover underline outranks a bare class, and it painted across the
   whole lockup, kicker included. Matched on specificity here to kill it. */
.mast-brand, .mast-brand:hover { text-decoration: none; }
/* The logo is already coral, so the wordmark joining it on hover reads as one
   deliberate mark rather than as a link that happens to sit next to a logo. */
.mast-brand .mast-title { transition: color .13s ease; }
.mast-brand:hover .mast-title { color: var(--accent); }
.mast-brand:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 2px; }
.mast-brand .logo { grid-area: logo; }
.mast-title { grid-area: title; align-self: end; }
.mast-kicker { grid-area: kicker; align-self: start; }
.logo { width: 37px; height: 37px; flex: 0 0 auto; display: block; color: var(--accent); }
.mast-title { font: 400 20px/25px var(--serif); letter-spacing: -.2px; }
.mast-kicker {
  font: 500 10px var(--mono); color: var(--ink-faint);
  letter-spacing: 1.4px; text-transform: uppercase;
}
.mast-right { display: flex; align-items: center; gap: 20px; }
.mast-meta { font: 400 11px var(--mono); color: var(--ink-dim); }
.theme-toggle {
  font: 500 10px var(--mono); letter-spacing: .8px;
  background: none; border: 1px solid var(--rule); border-radius: 2px;
  padding: 5px 9px; color: var(--ink-dim); cursor: pointer;
}
.theme-toggle:hover { border-color: var(--ink-dim); }

/* Test name — the report's title, so it's typeset rather than boxed */
.test-name-block { padding: 26px 0 0; }
/* scoped so it outranks the generic input[type="text"] field styling */
.test-name-block .test-name {
  width: 100%; background: none; border: 0; border-radius: 0;
  border-bottom: 1px solid var(--edge);   /* always visible, so it can't be skipped */
  padding: 2px 0 8px;
  color: var(--ink); font: 400 24px/1.25 var(--serif); letter-spacing: -.25px;
  transition: border-color .13s ease, background-color .13s ease, box-shadow .13s ease;
}
.test-name-block .test-name::placeholder { color: var(--ink-faint); }
.test-name-block .test-name:hover { border-bottom-color: var(--accent); }
/* On focus the field fills, using the same surface as every other input. The
   shadow is a flat spread, not a blur, so it pads the area without shifting it. */
.test-name-block .test-name:focus {
  outline: none; border-bottom-color: var(--accent);
  background: var(--field); box-shadow: 0 0 0 10px var(--field);
}
.test-name-block + .section { padding-top: 26px; }

/* Section (numbered) with optional right-rail margin note */
.section {
  display: grid; grid-template-columns: minmax(0, 1fr) 236px; gap: 44px;
  align-items: start; padding: 48px 0; border-bottom: 2px solid var(--rule);
}
.section-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 26px; }
.section-num {
  font: 600 13px var(--mono); color: var(--accent); letter-spacing: .5px;
  border: 1px solid var(--accent); border-radius: 2px; padding: 2px 7px;
}
.section-label {
  font: 600 16px var(--sans); letter-spacing: 1.2px;
  text-transform: uppercase; color: var(--ink);
}
.section-desc {
  font: 400 12.5px/1.6 var(--sans); color: var(--ink-dim);
  max-width: 60ch; margin-bottom: 22px;
}
.section-desc sup { font-size: 9px; color: var(--accent); }

/* Running index (left margin) — see toc.js.
   Hidden by default; only shown once the gutter beside .doc can hold it. */
.toc { display: none; }
@media (min-width: 1220px) {
  .toc {
    display: block; position: fixed; z-index: 40;
    top: 50%; transform: translateY(-50%);
    left: max(10px, calc(50% - 636px));
    padding: 6px 8px 6px 0; background: var(--paper);
    max-height: calc(100vh - 80px); overflow-y: auto;
  }
  .toc[hidden] { display: none; }
}
/* Below the wide breakpoint the expanded labels overlay the page, so the
   panel needs an edge to read as an overlay rather than colliding text. */
.toc:hover, .toc:focus-within {
  padding-right: 16px; box-shadow: 14px 0 22px -16px rgba(20, 19, 16, .35);
}
:root[data-theme="ink"] .toc:hover, :root[data-theme="ink"] .toc:focus-within {
  box-shadow: 14px 0 22px -16px rgba(0, 0, 0, .7);
}
@media (min-width: 1620px) {
  .toc { left: max(10px, calc(50% - 790px)); }
  .toc .toc-label { opacity: 1; max-width: 172px; transform: none; }
  .toc:hover, .toc:focus-within { padding-right: 8px; box-shadow: none; }
}
.toc-item {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 5px 0 5px 10px; text-align: left; cursor: pointer;
  background: none; border: 0; border-left: 2px solid transparent;
  color: var(--ink-faint);
  transition: color .13s ease, border-color .13s ease;
}
.toc-item:hover { color: var(--accent); }
.toc-item.is-active { color: var(--accent); border-left-color: var(--accent); }
.toc-item:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.toc-num { font: 600 10px var(--mono); letter-spacing: .6px; }
.toc-label {
  font: 500 11.5px var(--sans); white-space: nowrap;
  opacity: 0; max-width: 0; overflow: hidden; transform: translateX(-4px);
  transition: opacity .16s ease, max-width .22s ease, transform .16s ease;
}
.toc:hover .toc-label, .toc:focus-within .toc-label { opacity: 1; max-width: 172px; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .toc-label, .toc-item { transition: none; }
}

/* Mobile section bar + sheet — takes over below the gutter breakpoint */
.toc-bar, .toc-sheet, .toc-scrim { display: none; }
@media (max-width: 1219px) {
  .toc-bar {
    display: flex; align-items: center; gap: 11px;
    position: fixed; top: 0; left: 0; right: 0; z-index: 47;
    width: 100%; padding: 11px 20px; margin: 0;
    background: var(--paper); border: 0; border-bottom: 1px solid var(--rule);
    color: var(--ink); text-align: left; cursor: pointer;
    transform: translateY(-101%);
    transition: transform .22s cubic-bezier(.22, .7, .3, 1);
  }
  .toc-bar.is-visible { transform: none; }
  .toc-bar[hidden] { display: none; }
  .toc-scrim { display: block; position: fixed; inset: 0; z-index: 45; background: rgba(20, 19, 16, .42); opacity: 0; transition: opacity .2s ease; }
  .toc-scrim.is-open { opacity: 1; }
  .toc-scrim[hidden] { display: none; }
  .toc-sheet {
    display: block; position: fixed; top: 0; left: 0; right: 0; z-index: 46;
    max-height: 76vh; overflow-y: auto;
    padding: 47px 0 10px;   /* clears the bar, which sits above it */
    background: var(--paper); border-bottom: 2px solid var(--ink);
    transform: translateY(-101%);
    transition: transform .24s cubic-bezier(.22, .7, .3, 1);
  }
  .toc-sheet.is-open { transform: none; }
  .toc-sheet[hidden] { display: none; }
}
.toc-bar-num {
  font: 600 10px var(--mono); letter-spacing: .6px; color: var(--accent);
  border: 1px solid var(--accent); border-radius: 2px; padding: 2px 6px; flex-shrink: 0;
}
.toc-bar-label {
  flex: 1; min-width: 0; font: 600 11.5px var(--sans); letter-spacing: 1px;
  text-transform: uppercase; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.toc-bar-chev { width: 12px; height: 12px; flex-shrink: 0; color: var(--ink-faint); transition: transform .18s ease, color .13s ease; }
.toc-bar[aria-expanded="true"] .toc-bar-chev { transform: rotate(180deg); color: var(--accent); }
.toc-sheet-item {
  display: flex; align-items: center; gap: 13px; width: 100%;
  padding: 13px 20px; background: none; border: 0;
  border-left: 3px solid transparent; text-align: left; cursor: pointer;
  color: var(--ink-dim);
}
.toc-sheet-item.is-active { color: var(--accent); border-left-color: var(--accent); }
.toc-sheet-num { font: 600 10px var(--mono); letter-spacing: .6px; min-width: 17px; flex-shrink: 0; }
.toc-sheet-label { font: 500 13.5px var(--sans); }
:root[data-theme="ink"] .toc-scrim { background: rgba(0, 0, 0, .62); }
@media (prefers-reduced-motion: reduce) {
  .toc-bar, .toc-sheet, .toc-scrim, .toc-bar-chev { transition: none; }
}

/* Margin notes (right rail) */
.rail-note { padding-top: 2px; }
.note-item { margin-bottom: 26px; }
.note-kicker {
  font: 600 10px var(--mono); letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--accent); margin-bottom: 7px;
}
.note-body { font: 400 12px/1.7 var(--sans); color: var(--ink-dim); }
.note-body strong { color: var(--ink); font-weight: 600; }

/* ── Fields / inputs ── */
.field-label { display: block; font: 500 11px var(--sans); color: var(--ink-dim); margin-bottom: 6px; }
.opt { color: var(--ink-faint); font-weight: 400; }
.req { color: var(--accent); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
input[type="number"], input[type="text"], input[type="date"], input[type="password"], select, textarea {
  width: 100%; background: var(--field); border: 1px solid var(--field-border);
  border-radius: 3px; padding: 9px 11px; color: var(--ink);
  font: 500 13px var(--mono);
}
select { font-family: var(--sans); cursor: pointer; }
textarea { font-family: var(--sans); font-weight: 400; resize: vertical; }
label.check-row { display: flex; align-items: center; gap: 9px; font: 500 12.5px var(--sans); color: var(--ink); cursor: pointer; }
input[type="checkbox"], input[type="range"] { accent-color: var(--accent); }
input[type="checkbox"] { width: 15px; height: 15px; }

/* Custom select — the native popup is replaced by select.js */
.sel { position: relative; width: 100%; }
.sel--auto { display: inline-block; width: auto; }
.sel-native { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.sel-trigger {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  width: 100%; background: var(--field); border: 1px solid var(--field-border);
  border-radius: 3px; padding: 9px 11px; color: var(--ink);
  font: 500 13px var(--sans); text-align: left; cursor: pointer;
  transition: border-color .13s ease;
}
.sel--auto .sel-trigger { font-size: 11px; padding: 6px 8px; }
.sel-trigger:hover { border-color: var(--ink-faint); }
.sel-trigger:focus-visible { outline: 2px solid var(--accent); outline-offset: -1px; }
.sel.is-open .sel-trigger { border-color: var(--accent); }
.sel-chev { width: 11px; height: 11px; flex-shrink: 0; color: var(--ink-faint); transition: transform .16s ease, color .13s ease; }
.sel.is-open .sel-chev { transform: rotate(180deg); color: var(--accent); }
.sel-panel {
  position: absolute; left: 0; right: 0; top: calc(100% + 5px); z-index: 60;
  max-height: 258px; overflow-y: auto; padding: 4px;
  background: var(--field); border: 1px solid var(--field-border); border-radius: 3px;
  box-shadow: 0 10px 26px rgba(20, 19, 16, .15);
  opacity: 0; transform: translateY(-5px); transform-origin: top;
  transition: opacity .13s ease, transform .16s cubic-bezier(.22, .7, .3, 1);
}
.sel-panel--up { top: auto; bottom: calc(100% + 5px); transform: translateY(5px); transform-origin: bottom; }
.sel-panel.is-open { opacity: 1; transform: translateY(0); }
.sel--auto .sel-panel { left: auto; right: 0; min-width: 100%; width: max-content; }
.sel-opt {
  padding: 8px 10px; border-radius: 2px; cursor: pointer; white-space: nowrap;
  font: 500 12.5px var(--sans); color: var(--ink-dim);
}
.sel--auto .sel-opt { font-size: 11.5px; padding: 6px 9px; }
.sel-opt.is-selected { color: var(--ink); font-weight: 600; }
.sel-opt.is-active { background: var(--accent); color: var(--paper); }
:root[data-theme="ink"] .sel-panel { box-shadow: 0 10px 26px rgba(0, 0, 0, .5); }

/* Ink mode: fields sit below the page surface, so they carry their own shadow
   rather than relying on a border for separation. */
:root[data-theme="ink"] input[type="number"],
:root[data-theme="ink"] input[type="text"]:not(.test-name),
:root[data-theme="ink"] input[type="date"],
:root[data-theme="ink"] input[type="password"],
:root[data-theme="ink"] textarea,
:root[data-theme="ink"] .sel-trigger {
  box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.25);
}
@media (prefers-reduced-motion: reduce) {
  .sel-panel, .sel-chev, .sel-trigger, .dp-icon { transition: none; }
}

/* Date picker — shares .sel wrapper + .sel-panel animation, see datepicker.js */
.dp .sel-value.is-empty { color: var(--ink-faint); }
.dp-icon { width: 13px; height: 13px; flex-shrink: 0; color: var(--ink-faint); transition: color .13s ease; }
.dp.is-open .dp-icon { color: var(--accent); }
.dp-panel { right: auto; width: 268px; padding: 12px; max-height: none; overflow: visible; }
.dp-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.dp-title { font: 600 12px var(--sans); color: var(--ink); }
.dp-nav {
  display: flex; align-items: center; justify-content: center; width: 22px; height: 22px;
  background: none; border: 1px solid var(--edge); border-radius: 2px;
  color: var(--ink-dim); cursor: pointer; padding: 0;
}
.dp-nav svg { width: 11px; height: 11px; }
.dp-nav:hover { border-color: var(--accent); color: var(--accent); }
.dp-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.dp-wd {
  font: 600 9.5px var(--mono); letter-spacing: .5px; text-transform: uppercase;
  color: var(--ink-faint); text-align: center; padding: 2px 0 6px;
}
.dp-day {
  font: 500 12px var(--mono); color: var(--ink); text-align: center;
  padding: 8px 0; border-radius: 2px; cursor: pointer;
}
.dp-day.is-out { color: var(--ink-faint); }
.dp-day.is-today { box-shadow: inset 0 0 0 1px var(--field-border); }
.dp-day.is-selected { background: var(--ink); color: var(--paper); }
.dp-day.is-active { background: var(--accent); color: var(--paper); }
.dp-day.is-disabled { opacity: .3; cursor: not-allowed; }
.dp-foot { display: flex; justify-content: space-between; margin-top: 9px; padding-top: 8px; border-top: 1px solid var(--rule); }
.dp-mini { background: none; border: none; padding: 2px 4px; font: 500 11px var(--sans); color: var(--ink-dim); cursor: pointer; }
.dp-mini:hover { color: var(--accent); }

.metric-hint {
  font: 400 12px/1.6 var(--sans); color: var(--ink-dim);
  border-left: 2px solid var(--edge); padding: 8px 12px; margin-bottom: 16px; max-width: 62ch;
}
.metric-hint[hidden] { display: none; }

/* Variant / group cards */
.groups { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.group-block {
  border: 1px solid var(--rule); border-left: 3px solid var(--s-control);
  border-radius: 3px; padding: 14px 16px;
}
.group-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.group-tag { font: 600 10px var(--mono); letter-spacing: 1.1px; }
.rm-btn { font: 400 11px var(--mono); color: var(--ink-faint); background: none; border: none; cursor: pointer; }
.group-block .field-label { font-size: 10px; margin-bottom: 5px; }

/* Buttons */
.btn-solid {
  font: 600 12.5px var(--sans); background: var(--ink); color: var(--paper);
  border: none; border-radius: 2px; padding: 11px 26px; cursor: pointer;
}
.btn-solid:hover { opacity: .9; }
.btn-solid:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary {
  font: 600 13.5px var(--sans); background: var(--accent); color: #fff;
  border: none; border-radius: 2px; padding: 13px 54px; cursor: pointer; letter-spacing: .2px;
}
.btn-primary:hover { filter: brightness(1.05); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; }
.rail-cta { width: 100%; margin-top: 18px; }
/* Secondary buttons carry a coral edge at rest, going solid on hover. Text
   stays neutral so they don't read as the primary action. */
.btn-outline {
  font: 500 12.5px var(--sans); background: none; color: var(--ink-dim);
  border: 1px solid var(--edge);
  border-radius: 2px; padding: 11px 18px; cursor: pointer;
  transition: border-color .13s ease, color .13s ease;
}
.btn-outline:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.btn-outline:disabled { border-color: var(--rule); color: var(--ink-faint); cursor: not-allowed; }
.btn-accent {
  font: 500 11.5px var(--sans); color: var(--accent); background: none;
  border: 1px solid var(--accent); border-radius: 2px; padding: 7px 12px; cursor: pointer;
}
.btn-accent:hover { background: var(--accent); color: var(--paper); }
.btn-dashed {
  width: 100%; background: none; border-radius: 3px;
  border: 1px dashed var(--edge);
  padding: 11px; font: 600 12.5px var(--sans); color: var(--accent); cursor: pointer;
  transition: border-color .13s ease;
}
.btn-dashed:hover { border-color: var(--accent); }
.btn-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 24px; }
.api-note { font: 400 11px var(--mono); color: var(--ink-faint); margin-left: auto; }

/* Collapsibles */
.collapsibles { margin-top: 22px; border-top: 1px solid var(--rule); }
.collapse { border-bottom: 1px solid var(--rule); }
.collapse > summary {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0; cursor: pointer; list-style: none;
  font: 500 12.5px var(--sans); color: var(--ink);
}
.collapse > summary::-webkit-details-marker { display: none; }
.collapse > summary::after { content: "+"; font: 400 13px var(--mono); color: var(--ink-faint); }
.collapse[open] > summary::after { content: "\2212"; }
.collapse-body { padding: 0 0 18px; }
.collapse-body .section-desc { font-size: 12px; margin-bottom: 14px; }

/* ── Verdict (02) ── */
.verdict-tag { font: 500 10px var(--mono); color: var(--ink-dim); letter-spacing: 1.1px; text-transform: uppercase; margin-bottom: 14px; }
.verdict-headline { font: 400 34px/1.12 var(--serif); letter-spacing: -.35px; margin: 0 0 20px; text-wrap: pretty; }
/* Gloock ships roman only, so an italic here would be a synthesized slant.
   The color shift carries the emphasis instead. */
.verdict-headline em { font-style: normal; color: var(--ink-dim); }
.verdict-lead { font: 400 14px/1.65 var(--sans); color: var(--ink-dim); max-width: 62ch; text-wrap: pretty; }
.verdict-lead sup { font-size: 9px; color: var(--accent); }
.metric-strip { display: flex; flex-wrap: wrap; margin-top: 26px; border-top: 1px solid var(--rule); }
.metric-cell { flex: 1 1 130px; padding: 16px 20px 4px 0; border-right: 1px solid var(--rule); }
.metric-cell:last-child { border-right: none; }
.metric-cap { font: 500 10px var(--sans); letter-spacing: .6px; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 8px; }
.metric-big { font: 500 27px var(--mono); }
.pos { color: var(--pass); }
.neg { color: var(--fail); }

/* ── Report tables (significance, bayesian, revenue, cuped) ── */
.rtable { width: 100%; border-collapse: collapse; }
.rtable th {
  font: 600 9.5px var(--sans); letter-spacing: 1px; text-transform: uppercase;
  color: var(--ink-faint); text-align: right; padding: 0 0 10px; font-weight: 600;
}
.rtable th:first-child, .rtable td:first-child { text-align: left; }
.rtable td { font: 500 12.5px var(--mono); padding: 11px 0; border-top: 1px solid var(--rule); text-align: right; }
.rtable td.tname { font-family: var(--sans); color: var(--ink); }
.rtable tr.dim td { color: var(--ink-faint); }

/* Badges */
.badge { font: 600 9.5px var(--mono); letter-spacing: .8px; text-transform: uppercase; }
.badge.pass { color: var(--pass); }
.badge.fail { color: var(--fail); }
.badge.warn { color: var(--warn); }
.badge.muted { color: var(--ink-faint); }

/* Bayesian bar rows */
.bar-row { display: flex; align-items: center; gap: 14px; padding: 10px 0; border-top: 1px solid var(--rule); }
.bar-row .bname { flex: 0 0 130px; font: 500 12.5px var(--sans); }
.bar-track { flex: 1; height: 8px; background: var(--rule); position: relative; }
.bar-fill { position: absolute; left: 0; top: 0; height: 100%; }
.bar-val { flex: 0 0 auto; font: 500 12.5px var(--mono); width: 56px; text-align: right; }
.bar-loss { flex: 0 0 auto; font: 400 11px var(--mono); color: var(--ink-faint); width: 90px; text-align: right; }

/* Forest plot (04) */
.forest-rows { position: relative; }
.forest-zeroline { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--ink-faint); opacity: .5; z-index: 1; }
.forest-row { display: flex; align-items: center; gap: 16px; height: 48px; border-top: 1px solid var(--rule); }
.forest-label { flex: 0 0 130px; font: 500 12px var(--sans); }
.forest-plot { position: relative; flex: 1; height: 100%; }
.forest-zero { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--ink-faint); opacity: .55; }
.forest-ci { position: absolute; top: 50%; height: 2px; transform: translateY(-50%); }
.forest-dot { position: absolute; top: 50%; width: 9px; height: 9px; border-radius: 50%; transform: translate(-50%, -50%); }
.forest-val { flex: 0 0 150px; text-align: right; font: 500 11.5px var(--mono); }
.forest-val .fci { color: var(--ink-faint); }
.forest-axis { display: flex; gap: 16px; height: 22px; border-top: 1px solid var(--rule); }
.forest-axis .sp { flex: 0 0 130px; }
.forest-axis .track { position: relative; flex: 1; }
.forest-axis .end { flex: 0 0 150px; }
.forest-tick { position: absolute; top: 4px; transform: translateX(-50%); font: 400 10px var(--mono); color: var(--ink-faint); white-space: nowrap; }
.fci { color: var(--ink-faint); }

/* Chart tabs / toggle (section 05) */
.chart-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.chart-tabs button { font: 500 11.5px var(--sans); background: none; color: var(--ink-dim); border: 1px solid var(--edge); border-radius: 2px; padding: 6px 12px; cursor: pointer; transition: border-color .13s ease, color .13s ease; }
.chart-tabs button:hover:not(.active) { border-color: var(--accent); color: var(--accent); }
.chart-tabs button.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.chart-toggle { display: inline-flex; gap: 6px; margin-bottom: 12px; }
.chart-toggle button { font: 500 11px var(--mono); background: none; color: var(--ink-dim); border: 1px solid var(--edge); border-radius: 2px; padding: 4px 10px; cursor: pointer; transition: border-color .13s ease, color .13s ease; }
.chart-toggle button:hover:not(.active) { border-color: var(--accent); color: var(--accent); }
.chart-toggle button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-sm { padding: 6px 12px; font-size: 11.5px; }
.note { font: 400 11.5px/1.6 var(--sans); color: var(--ink-faint); }
.chart-cap { font: 500 11px var(--sans); color: var(--ink-dim); margin-bottom: 8px; }
.chart-box-sm { position: relative; height: 220px; }
.cuped-charts { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 20px; }
@media (max-width: 900px) { .cuped-charts { grid-template-columns: 1fr; } }

/* Report tabs / panels (section 13) */
.report-out { margin-top: 16px; }
.report-body h3, .md h3 { font: 600 12px var(--sans); text-transform: uppercase; letter-spacing: .8px; color: var(--ink); margin: 18px 0 8px; }
.report-body h4, .md h4 { font: 600 12px var(--sans); color: var(--ink); margin: 14px 0 6px; }
.report-body p, .md p { font: 400 13px/1.7 var(--sans); color: var(--ink-dim); margin: 0 0 10px; }
.report-body ul, .md ul { margin: 0 0 12px; padding-left: 18px; }
.report-body li, .md li { font: 400 13px/1.65 var(--sans); color: var(--ink-dim); margin-bottom: 4px; }
.report-body strong, .md strong { color: var(--ink); }

/* Plan / Simpson output rows */
.plan-row { display: flex; justify-content: space-between; padding: 9px 0; border-top: 1px solid var(--rule); font: 500 12.5px var(--sans); }
.plan-row .k { color: var(--ink-dim); }
.plan-row .v { font-family: var(--mono); }
.up { color: var(--pass); }
.down { color: var(--fail); }
.flat { color: var(--ink-dim); }

/* ── Visualizations (05) ── */
.viz-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.viz-actions { display: flex; gap: 10px; align-items: center; flex-shrink: 0; }
.mini-select { width: auto; font: 500 11px var(--sans); padding: 6px 8px; }
.pill-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.pill {
  font: 500 11.5px var(--sans); background: none; color: var(--ink-dim);
  border: 1px solid var(--edge); border-radius: 2px; padding: 6px 12px; cursor: pointer;
  transition: border-color .13s ease, color .13s ease;
}
.pill:hover:not(.active) { border-color: var(--accent); color: var(--accent); }
.pill.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.chart-box { position: relative; height: 340px; margin-top: 8px; }
.chart-box canvas { max-width: 100%; }
.chart-box svg { width: 100%; height: 100%; }
.chart-explain { margin-top: 14px; }
.explain-box {
  border-left: 2px solid var(--accent); background: var(--field);
  padding: 12px 14px; font: 400 12.5px/1.6 var(--sans); color: var(--ink-dim);
}
.explain-tag { font: 600 9px var(--mono); letter-spacing: 1px; color: var(--accent); margin-right: 8px; }

/* Alerts */
.alert { font: 400 12.5px/1.55 var(--sans); padding: 12px 14px; border-left: 2px solid var(--rule); background: var(--field); margin: 14px 0; }
.alert .lbl { font-weight: 600; color: var(--ink); margin-right: 6px; }
.alert.pass { border-left-color: var(--pass); }
.alert.warn { border-left-color: var(--warn); }
.alert.danger { border-left-color: var(--fail); }
.alert.info { border-left-color: var(--accent); }

/* Reports (11) */
.report-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.report-body { font: 400 13px/1.7 var(--sans); color: var(--ink-dim); }
.report-body h3 { font: 600 13px var(--sans); color: var(--ink); text-transform: uppercase; letter-spacing: .8px; margin: 18px 0 8px; }
.report-body strong { color: var(--ink); }

/* Empty / loading */
.results-empty { padding: 60px 0; color: var(--ink-faint); font: 400 14px var(--sans); }
.spinner { width: 22px; height: 22px; border: 2px solid var(--rule); border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; margin-bottom: 12px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* CSV import modal */
.csv-modal { max-width: 780px; }
.csv-drop {
  border: 1px dashed var(--edge); border-radius: 3px; padding: 26px 20px;
  text-align: center; transition: border-color .13s ease, background-color .13s ease;
}
.csv-drop.is-over { border-color: var(--accent); background: var(--field); }
.csv-drop-or { font: 400 11px var(--mono); color: var(--ink-faint); margin: 14px 0 10px; text-transform: uppercase; letter-spacing: 1px; }
.csv-drop textarea { max-width: 460px; margin: 0 auto; font: 400 12px var(--mono); }
.csv-detected { font: 400 12.5px/1.6 var(--sans); color: var(--ink-dim); margin-bottom: 16px; }
.csv-badge {
  font: 600 10px var(--mono); letter-spacing: .8px; text-transform: uppercase;
  color: var(--accent); border: 1px solid var(--accent); border-radius: 2px;
  padding: 2px 7px; margin-right: 8px;
}
.csv-badge.muted { color: var(--ink-faint); border-color: var(--field-border); }
.csv-hint { font: 400 11.5px/1.6 var(--sans); color: var(--ink-faint); margin-top: 8px; }
.csv-preview { max-height: 240px; overflow: auto; }
.csv-preview .rtable { margin: 0; }

/* Modal (planner) */
.modal-overlay { position: fixed; inset: 0; background: rgba(20,19,16,.55); display: flex; align-items: flex-start; justify-content: center; padding: 60px 20px; z-index: 50; overflow: auto; }
.modal-overlay[hidden] { display: none; }
.modal { background: var(--paper); border: 1px solid var(--ink); max-width: 560px; width: 100%; padding: 28px 30px 30px; }
.modal-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 6px; }
.modal-head h2 { font: 400 20px var(--serif); margin: 0; }
.modal-close { font: 400 20px var(--mono); background: none; border: none; color: var(--ink-dim); cursor: pointer; }
.plan-out { margin-top: 16px; }

/* ── Compat: classes emitted by app.js dynamic builders ── */
.field { margin-bottom: 12px; }
.field:last-child { margin-bottom: 0; }
.field > label { display: block; font: 500 10px var(--sans); color: var(--ink-dim); margin-bottom: 5px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }
.row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-bottom: 10px; }
.sub-block { border: 1px solid var(--rule); border-radius: 3px; padding: 14px 16px; margin-bottom: 12px; }
.sub-lbl { font: 600 10px var(--mono); letter-spacing: 1px; text-transform: uppercase; color: var(--ink-faint); margin: 8px 0 6px; }
.group-block .field { margin-bottom: 12px; }
.plan-out:empty { display: none; }
.plan-out { margin-top: 14px; font: 400 12.5px/1.6 var(--sans); color: var(--ink-dim); }

/* Responsive */
@media (max-width: 900px) {
  .section { grid-template-columns: 1fr; gap: 20px; }
  .rail-note { border-top: 1px solid var(--rule); padding-top: 16px; }
  .groups, .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .verdict-headline { font-size: 26px; }
  .doc { padding: 0 20px; }
}

/* Masthead stacks below 700px, where the single row starts wrapping mid-word.
   display:contents lifts the two wrappers' children into the masthead's own
   flex flow so they can be reordered into rows without touching the markup. */
@media (max-width: 700px) {
  .masthead {
    flex-wrap: wrap; align-items: center;
    gap: 8px 11px; padding: 24px 0 12px;
  }
  .mast-brand, .mast-right { display: contents; }
  .logo { order: 1; width: 32px; height: 32px; }
  .mast-title { order: 2; margin-right: auto; font-size: 18px; white-space: nowrap; }
  .theme-toggle { order: 3; }
  .masthead::after { content: ""; order: 4; flex: 0 0 100%; height: 0; }
  .mast-kicker { order: 5; }
  .mast-meta { order: 6; font-size: 10.5px; }
  .test-name-block { padding-top: 22px; }
  .test-name-block .test-name { font-size: 19px; }
}

/* Tip jar. Sits after the report rather than in the masthead: asking before the
   tool has done anything converts badly and cheapens the header. Styled in the
   existing system rather than in Buy Me a Coffee's yellow, which would fight
   every other colour on the page. */
.support {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 18px; margin-top: 26px; padding: 22px 24px;
  border: 1px solid var(--rule); border-left: 2px solid var(--accent);
  border-radius: 3px; background: var(--field);
}
.support-kicker {
  font: 600 9.5px var(--mono); letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 7px;
}
.support-copy {
  font: 400 13.5px/1.6 var(--sans); color: var(--ink-dim);
  margin: 0; max-width: 56ch;
}
.support-btn { flex: 0 0 auto; white-space: nowrap; }