:root {
  --ink: #16191D;
  --graphite: #3A4048;
  --steel: #8DBBF0;
  --peer: #A2673C;
  --hairline: #D5D9DE;
  --muted: #58606A;
  --tag-orange: #E0661B;
  --paper: #F4F5F7;
  --hatch: #C3C9D0;
  --white: #ffffff;
  --grey-border: #9AA2AC;
  --row-hover: #EEF0F3;
  --focus: #E0661B;
  --highlight-bg: #FBEFE3;
  --radius-sm: 3px;
  --radius-md: 4px;
  --font-disp: 'Archivo', sans-serif;
  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
}

:root[data-theme="dark"] {
  --ink: #E9ECF1;
  --graphite: #B7BFC9;
  --steel: #8DBBF0;
  --peer: #D89A63;
  --hairline: #333A44;
  --muted: #9AA4B2;
  --tag-orange: #FF8A45;
  --paper: #14171B;
  --hatch: #3A424D;
  --white: #1E2329;
  --grey-border: #4A525E;
  --row-hover: #262C33;
  --focus: #FF8A45;
  --highlight-bg: #3A2C1E;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    --ink: #E9ECF1;
    --graphite: #B7BFC9;
    --steel: #8DBBF0;
    --peer: #D89A63;
    --hairline: #333A44;
    --muted: #9AA4B2;
    --tag-orange: #FF8A45;
    --paper: #14171B;
    --hatch: #3A424D;
    --white: #1E2329;
    --grey-border: #4A525E;
    --row-hover: #262C33;
    --highlight-bg: #3A2C1E;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
}

body { overflow-x: hidden; }

a { color: var(--ink); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--tag-orange); }
a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

h1, h2, h3 { font-family: var(--font-disp); font-weight: 700; text-wrap: balance; margin: 0; }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

button, select, input {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--ink);
}

select, input[type="text"], input[type="search"], input[type="email"] {
  height: 40px;
  border: 1px solid var(--grey-border);
  border-radius: var(--radius-sm);
  background: var(--white);
  padding: 0 10px;
}

button {
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: var(--white);
  border: 1px solid var(--grey-border);
}
button:disabled { cursor: not-allowed; opacity: 0.6; }

svg text { user-select: none; }

/* ---------- shell ---------- */
.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  height: 64px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 20px;
  background: var(--white);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 30;
}

.wordmark { font-family: var(--font-disp); font-size: 18px; font-weight: 700; white-space: nowrap; }

.picker-slot { flex-grow: 1; display: flex; justify-content: center; min-width: 0; }

.site-nav { display: flex; gap: 20px; }
.site-nav a {
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 2px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.site-nav a:hover { color: var(--tag-orange); }
.site-nav a.active { font-weight: 600; border-bottom-color: var(--ink); color: var(--ink); }

.btn { display: inline-flex; align-items: center; gap: 6px; padding: 0 14px; white-space: nowrap; }
.btn-ghost { background: var(--white); border: 1px solid var(--grey-border); color: var(--ink); }
.btn-primary { background: var(--ink); border: 1px solid var(--ink); color: var(--white); font-weight: 600; }
.btn-primary:hover { filter: brightness(1.15); }

.theme-toggle {
  width: 40px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

#page-root { flex-grow: 1; padding: 24px 32px 40px; max-width: 1600px; width: 100%; margin: 0 auto; }
#page-root:focus { outline: none; }

.site-footer {
  height: auto;
  min-height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 32px;
  background: var(--white);
  border-top: 1px solid var(--hairline);
  font-size: 13px;
  color: var(--muted);
}
.footer-right { display: flex; gap: 20px; flex-wrap: wrap; }

/* ---------- product picker (combobox) ---------- */
.picker-wrap { position: relative; display: flex; align-items: center; gap: 8px; min-width: 0; max-width: 100%; }
.picker-label { font-size: 13px; color: var(--muted); white-space: nowrap; }
.picker-btn {
  width: 380px;
  max-width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 0 12px;
  border: 1px solid var(--grey-border);
  background: var(--white);
  text-align: left;
}
.picker-btn span.picker-btn-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.picker-btn[aria-expanded="true"] { border-color: var(--ink); }

.picker-panel[hidden] { display: none; }
.picker-panel {
  position: absolute;
  top: calc(100% + 4px);
  left: 61px;
  width: 420px;
  max-width: 90vw;
  max-height: 70vh;
  background: var(--white);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0,0,0,0.16);
  display: flex;
  flex-direction: column;
  z-index: 40;
}
.picker-search-area { padding: 12px; border-bottom: 1px solid var(--hairline); display: flex; flex-direction: column; gap: 8px; flex-shrink: 0; }
.picker-search-label { font-size: 13px; font-weight: 600; }
.picker-search-area input[type="search"] { width: 100%; }
.picker-filters { display: flex; gap: 16px; font-size: 13px; }
.picker-filters label { display: flex; align-items: center; gap: 6px; cursor: pointer; }
.picker-filters input { width: 16px; height: 16px; margin: 0; accent-color: var(--ink); }

.picker-list { overflow-y: auto; padding-bottom: 8px; }
.picker-list-head { display: flex; justify-content: space-between; padding: 8px 16px 0; font-size: 12px; color: var(--muted); }
.picker-group-label { padding: 10px 16px 4px; font-size: 13px; font-weight: 600; color: var(--muted); }
.picker-option {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 16px;
  background: var(--white);
  border-left: 3px solid transparent;
  cursor: pointer;
}
.picker-option:hover { background: var(--row-hover); }
.picker-option[aria-selected="true"] { background: var(--row-hover); border-left-color: var(--tag-orange); }
.picker-option-title { font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.picker-option-count { font-size: 13px; color: var(--muted); flex-shrink: 0; }
.picker-refine { padding: 10px 16px 0; font-size: 13px; color: var(--muted); }
.picker-empty { padding: 16px; font-size: 13px; color: var(--muted); }

/* ---------- generic building blocks ---------- */
.card {
  background: var(--white);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 18px 16px 12px;
}

.stat-tile {
  background: var(--white);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-tile .stat-label { font-size: 13px; color: var(--muted); }
.stat-tile .stat-value { font-size: 26px; }
.stat-tile .stat-note { font-size: 12px; color: var(--muted); }
.stat-tile.stat-highlight { border-color: var(--tag-orange); }

.legend-row { display: flex; gap: 18px; margin-left: 12px; font-size: 12px; color: var(--muted); flex-wrap: wrap; }
.legend-swatch { display: inline-flex; align-items: center; gap: 6px; }
.legend-dot { width: 10px; height: 10px; display: inline-block; }
.legend-dash { width: 14px; border-top: 1.5px dashed var(--tag-orange); display: inline-block; }

/* ---------- data disclosure sentence (every page carries one) ---------- */
.data-note { font-size: 12px; color: var(--muted); }

/* ---------- overview page ---------- */
.overview-heading { max-width: 1100px; margin-bottom: 20px; }
.overview-subtitle { font-size: 15px; color: var(--muted); margin: 6px 0 0; }
.overview-headline { font-size: 26px; margin: 14px 0 0; max-width: 1100px; }

.key-findings { list-style: none; margin: 20px 0; padding: 0; display: flex; flex-direction: column; gap: 2px; counter-reset: kf; }
.key-findings li { counter-increment: kf; display: flex; gap: 14px; padding: 14px 4px; border-top: 1px solid var(--hairline); }
.key-findings li:last-child { border-bottom: 1px solid var(--hairline); }
.key-findings .kf-num {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; background: var(--ink); color: var(--white);
  display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; font-family: var(--font-mono);
}
.key-findings .kf-text { font-size: 15px; line-height: 1.5; padding-top: 2px; }
.key-findings .kf-text a { font-weight: 600; }
.key-findings strong { font-weight: 700; }

.families-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin: 32px 0 12px; }
.families-head h2 { font-size: 17px; }
.families-table-wrap { overflow-x: auto; }
table.families-table, table.types-table { background: var(--white); border: 1px solid var(--hairline); border-radius: var(--radius-md); border-collapse: collapse; width: 100%; font-size: 14px; min-width: 640px; }
table.families-table th, table.types-table th { padding: 10px 12px; font-weight: 600; text-align: left; background: var(--paper); vertical-align: bottom; }
table.families-table th { padding: 0; }
table.families-table th.num, table.families-table td.num, table.types-table th.num, table.types-table td.num { text-align: right; }
table.families-table th .sort-btn, table.types-table th .sort-btn {
  width: 100%; height: auto; border: none; background: transparent; border-radius: 0;
  padding: 10px 12px; font-weight: 600; font-size: 14px; color: var(--ink);
  display: flex; align-items: center; gap: 6px; cursor: pointer;
}
/* Numeric headers sit flush right over their numbers; the sort icon goes before the label. */
table.families-table th.num .sort-btn, table.types-table th.num .sort-btn { justify-content: flex-end; }
table.families-table th.num .sort-btn svg, table.types-table th.num .sort-btn svg { order: -1; }
table.families-table th .sort-btn:hover, table.types-table th .sort-btn:hover { color: var(--tag-orange); }
table.families-table th .sort-btn svg, table.types-table th .sort-btn svg { flex-shrink: 0; }
table.families-table td, table.types-table td { padding: 10px 12px; border-top: 1px solid var(--hairline); vertical-align: top; }
table.families-table tbody tr { cursor: pointer; }
table.families-table tbody tr:hover { background: var(--row-hover); }
table.families-table tbody tr:focus-visible, table.types-table tbody tr:focus-visible { outline: 2px solid var(--focus); outline-offset: -2px; }
.type-name { font-weight: 600; }
.type-cap { display: block; font-size: 12px; color: var(--muted); font-weight: 400; margin-top: 2px; }
.gap-cell { display: flex; flex-direction: column; gap: 2px; }
.gap-cell .gap-theme { font-weight: 600; }
.gap-cell .gap-nums { font-size: 12px; color: var(--muted); }
.few-note { font-size: 12px; color: var(--muted); }

.filter-row { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }

/* ---------- product page ---------- */
.product-layout { display: flex; gap: 24px; align-items: flex-start; flex-wrap: wrap; }
.product-main { flex: 1 1 640px; min-width: 0; display: flex; flex-direction: column; gap: 16px; }
.product-rail { width: 380px; flex-shrink: 0; display: flex; flex-direction: column; gap: 20px; }
.product-rail h2 { font-size: 18px; }
.product-rail h3 { font-size: 15px; }
.rail-section { border-top: 1px solid var(--hairline); padding-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.rail-section:first-child { border-top: none; padding-top: 0; }

.product-heading { display: flex; flex-direction: column; gap: 6px; }
.product-heading h1 { font-size: 32px; }
.product-meta { font-size: 14px; color: var(--muted); display: flex; gap: 18px; flex-wrap: wrap; }

.controls-row { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.controls-fieldset { border: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.controls-fieldset legend { float: left; margin-right: 4px; font-size: 13px; color: var(--muted); padding: 0; }
.channel-check { display: flex; align-items: center; gap: 8px; font-size: 14px; cursor: pointer; }
.channel-check input { width: 18px; height: 18px; margin: 0; accent-color: var(--ink); }
.channel-swatch { width: 10px; height: 10px; display: inline-block; }

.range-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.range-group label { font-size: 13px; color: var(--muted); }
.range-group select { width: 168px; }

.switch-group { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.switch-label-off { font-weight: 400; }
.switch-label-on { font-weight: 600; }
.switch {
  /* Two equal options, not on/off: the track looks the same either way; only the knob position and bold label change. */
  width: 48px; height: 26px; padding: 0; border: 1.5px solid var(--ink); border-radius: 13px;
  background: var(--white); position: relative; flex-shrink: 0;
}
.switch .switch-knob {
  position: absolute; top: 2px; left: 2px; width: 19px; height: 19px;
  border-radius: 50%; background: var(--ink); transition: left 0.15s ease;
  display: flex; align-items: center; justify-content: center; color: var(--white);
}
.switch .switch-knob svg { width: 12px; height: 12px; }
.switch[aria-checked="true"] .switch-knob { left: 24px; }
@media (prefers-reduced-motion: reduce) { .switch .switch-knob { transition: none; } }

.chart-card h2 { font-size: 17px; margin-left: 12px; }
.chart-card .card-sub { font-size: 13px; color: var(--muted); margin: 0 0 0 12px; }
.chart-subject { font-size: 13px; font-weight: 400; font-family: var(--font-sans); color: var(--muted); margin: -4px 0 4px 12px; text-transform: none; }
/* Charts are fluid SVG (viewBox + width:100%) and never need to scroll. */
.hint-text { font-size: 12px; color: var(--muted); margin: 4px 0 0 12px; }

.rating-row-head { display: flex; justify-content: space-between; align-items: center; margin: 4px 12px 0; flex-wrap: wrap; gap: 8px; }
.rating-row-head .rr-title { font-size: 13px; font-weight: 600; }
.rating-row-head .rr-note { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.rr-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--tag-orange); display: inline-block; }

.rail-intro { font-size: 13px; color: var(--muted); }

/* complaint mix bars */
.complaint-bars { display: flex; flex-direction: column; gap: 12px; }
.complaint-row { display: flex; flex-direction: column; gap: 4px; }
.complaint-row-head { display: flex; justify-content: space-between; font-size: 13px; }
.complaint-row-head .cr-label { font-weight: 600; }
.complaint-row-head .cr-value { font-family: var(--font-mono); color: var(--muted); }
.complaint-track { position: relative; height: 10px; background: var(--paper); border: 1px solid var(--hairline); }
.complaint-fill { position: absolute; top: 0; left: 0; height: 100%; background: var(--graphite); }
.complaint-marker { position: absolute; top: -3px; width: 2px; height: 16px; }
.complaint-marker.sn { background: var(--steel); }
.complaint-marker.peer { background: var(--peer); }
.complaint-legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
.complaint-legend span { display: inline-flex; align-items: center; gap: 6px; }
.complaint-legend i { width: 10px; height: 10px; display: inline-block; }

/* per-theme quotes */
.theme-block { display: flex; flex-direction: column; gap: 6px; padding: 10px 0; border-top: 1px solid var(--hairline); }
.theme-block:first-child { border-top: none; }
.theme-block-head { display: flex; justify-content: space-between; font-size: 14px; font-weight: 600; }
.theme-block-head .tb-share { font-family: var(--font-mono); font-weight: 400; color: var(--muted); }
.quote-card { background: var(--paper); border: 1px solid var(--hairline); border-radius: var(--radius-sm); padding: 10px 12px; font-size: 13px; display: flex; flex-direction: column; gap: 4px; }
.quote-meta { font-size: 12px; color: var(--muted); display: flex; gap: 10px; flex-wrap: wrap; }
.quote-text { line-height: 1.5; }
.theme-quotes-more summary { cursor: pointer; font-size: 13px; color: var(--muted); margin-top: 4px; }
.theme-quotes-more[open] summary { margin-bottom: 6px; }
.theme-quotes-more .theme-block { padding-top: 12px; }

/* year-by-year table */
table.year-table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.year-table th, table.year-table td { text-align: left; padding: 7px 8px; border-top: 1px solid var(--hairline); }
table.year-table th.num, table.year-table td.num { text-align: right; }
table.year-table tr.year-rise { background: var(--highlight-bg); }

/* lifecycle */
.lifecycle-note { font-size: 13px; color: var(--muted); }

/* refurbished block */
.refurb-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
table.refurb-cells { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 4px; }
table.refurb-cells th, table.refurb-cells td { text-align: right; padding: 6px 8px; border-top: 1px solid var(--hairline); }
table.refurb-cells th:first-child, table.refurb-cells td:first-child { text-align: left; }
.arrival-bars { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }

.listings-disclosure { border-top: 1px solid var(--hairline); padding-top: 14px; }
.listings-disclosure summary { cursor: pointer; font-size: 13px; font-weight: 600; }
.listings-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 8px; }
.listings-table th, .listings-table td { text-align: left; padding: 6px 4px; border-top: 1px solid var(--hairline); }

.empty-state, .error-state { padding: 40px 20px; text-align: center; color: var(--muted); font-size: 15px; }
.error-state { color: var(--ink); }

/* ---------- findings page ---------- */
.findings-section { background: var(--white); border: 1px solid var(--hairline); border-radius: var(--radius-md); padding: 20px; display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; scroll-margin-top: 80px; }
.findings-section h2 { font-size: 20px; max-width: 760px; }
.findings-meta { font-size: 13px; color: var(--muted); }
.findings-explain { font-size: 14px; line-height: 1.6; max-width: 860px; }
.findings-caveat { font-size: 13px; color: var(--muted); max-width: 860px; }
.findings-caveat strong { color: var(--ink); }

.dumbbell-group { display: flex; flex-direction: column; gap: 14px; }
.dumbbell-type { font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.dumbbell-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.dumbbell-label { width: 150px; flex-shrink: 0; font-size: 13px; }
.dumbbell-track { position: relative; flex: 1; height: 6px; background: var(--paper); border: 1px solid var(--hairline); }
.dumbbell-connector { position: absolute; top: 50%; height: 2px; background: var(--hairline); transform: translateY(-50%); }
.dumbbell-dot { position: absolute; top: 50%; width: 10px; height: 10px; transform: translate(-50%, -50%); }
.dumbbell-dot.sn { background: var(--graphite); }
.dumbbell-dot.peer { background: var(--peer); }
.dumbbell-values { width: 110px; flex-shrink: 0; font-family: var(--font-mono); font-size: 12px; color: var(--muted); text-align: right; }

.findings-legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.findings-legend span { display: inline-flex; align-items: center; gap: 6px; }
.findings-legend i { width: 10px; height: 10px; display: inline-block; }

/* cases list */
.case-list { display: flex; flex-direction: column; }
.case-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 14px 0; border-top: 1px solid var(--hairline); flex-wrap: wrap; }
.case-info { display: flex; flex-direction: column; gap: 4px; min-width: 0; flex: 1 1 280px; }
.case-model { font-weight: 700; font-size: 14px; }
.case-model a { font-weight: 700; }
.case-sub { font-size: 13px; color: var(--muted); }
.case-rising { font-size: 12px; color: var(--muted); }
.case-change { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; flex-shrink: 0; }
.case-change-value { font-size: 15px; font-weight: 600; font-family: var(--font-mono); }
.case-change-note { font-size: 12px; color: var(--muted); }

/* ---------- method page ---------- */
.method-intro { max-width: 900px; }
.method-intro p { font-size: 15px; color: var(--muted); }
.method-section { display: grid; grid-template-columns: 220px minmax(0,1fr); gap: 24px; padding: 28px 0; border-top: 1px solid var(--hairline); }
.method-section h2 { font-size: 20px; }
.method-body { display: flex; flex-direction: column; gap: 12px; font-size: 15px; line-height: 1.6; max-width: 860px; }
.method-body ul, .method-body ol { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 6px; }
.method-body table { border-collapse: collapse; width: 100%; font-size: 14px; background: var(--white); border: 1px solid var(--hairline); border-radius: var(--radius-md); }
.method-body table td { padding: 10px 14px; border-top: 1px solid var(--hairline); }
.method-body table td.num { text-align: right; }
.method-body dl { margin: 0; display: grid; grid-template-columns: 200px minmax(0,1fr); gap: 8px 16px; }
.method-body dt { font-weight: 600; }
.method-body dd { margin: 0; }
@media (max-width: 700px) { .method-section { grid-template-columns: 1fr; } }

/* ---------- chat drawer ---------- */
.chat-overlay {
  position: fixed; inset: 0; background: rgba(22,25,29,0.35); z-index: 50;
}
.chat-drawer {
  position: fixed; top: 0; right: 0; height: 100%; width: 420px; max-width: 100vw;
  background: var(--white); border-left: 1px solid var(--hairline);
  box-shadow: -8px 0 24px rgba(0,0,0,0.15);
  display: flex; flex-direction: column; z-index: 51;
}
@media (max-width: 700px) { .chat-drawer { width: 100vw; } }
.chat-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--hairline); flex-shrink: 0; }
.chat-header h2 { font-size: 17px; }
.chat-close { border: none; background: transparent; width: 32px; height: 32px; padding: 0; display: flex; align-items: center; justify-content: center; }
.chat-body { flex-grow: 1; overflow-y: auto; padding: 16px 20px; display: flex; flex-direction: column; gap: 14px; }
.chat-msg { display: flex; flex-direction: column; gap: 4px; max-width: 92%; }
.chat-msg.user { align-self: flex-end; align-items: flex-end; }
.chat-msg.assistant { align-self: flex-start; align-items: flex-start; }
.chat-bubble { padding: 10px 12px; border-radius: var(--radius-md); font-size: 14px; line-height: 1.5; white-space: pre-wrap; }
.chat-msg.user .chat-bubble { background: var(--ink); color: var(--white); }
.chat-msg.assistant .chat-bubble { background: var(--paper); border: 1px solid var(--hairline); }
.chat-msg.system .chat-bubble { background: var(--paper); border: 1px solid var(--hairline); color: var(--muted); font-size: 13px; }
.chat-tools { font-size: 12px; color: var(--muted); }
.chat-tools summary { cursor: pointer; }
.chat-view-chip { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 10px; background: var(--paper); border: 1px solid var(--hairline); border-radius: var(--radius-sm); font-size: 12px; margin-top: 4px; }
.chat-view-chip button { height: 26px; padding: 0 10px; font-size: 12px; }
.chat-suggestions { display: flex; flex-direction: column; gap: 6px; padding: 0 20px 12px; flex-shrink: 0; }
.chat-chip {
  width: 100%;
  border: 1px solid var(--hairline);
  background: var(--white);
  border-radius: 3px;
  height: auto;
  padding: 9px 12px;
  font-size: 13px;
  text-align: left;
  display: block;
}
.chat-chip:hover { border-color: var(--tag-orange); color: var(--tag-orange); }
.chat-input-row { border-top: 1px solid var(--hairline); padding: 12px 20px; display: flex; flex-direction: column; gap: 6px; flex-shrink: 0; }
.chat-input-area { display: flex; gap: 8px; align-items: flex-end; }
.chat-input-area textarea {
  flex-grow: 1; resize: none; font-family: var(--font-sans); font-size: 14px;
  border: 1px solid var(--grey-border); border-radius: var(--radius-sm); padding: 8px 10px; max-height: 100px;
}
.chat-counter { font-size: 11px; color: var(--muted); text-align: right; flex-shrink: 0; }
.chat-foot { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.chat-disclaimer { font-size: 12px; color: var(--muted); }
.chat-offline-note { font-size: 13px; color: var(--muted); padding: 8px 20px 16px; }

/* ---------- guided tour ---------- */
.tour-dim { position: fixed; inset: 0; background: rgba(22,25,29,0.55); z-index: 60; }
.tour-cutout {
  position: fixed; z-index: 61; border-radius: 6px;
  box-shadow: 0 0 0 2000px rgba(22,25,29,0.55);
  border: 2px solid var(--tag-orange);
  pointer-events: none;
}
.tour-card {
  position: fixed; z-index: 62; width: 380px; max-width: 92vw;
  background: var(--white); border-radius: 6px; padding: 22px;
  display: flex; flex-direction: column; gap: 12px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.25);
}
.tour-step-label { font-size: 13px; color: var(--muted); }
.tour-card h2 { font-size: 21px; }
.tour-card p { margin: 0; font-size: 15px; line-height: 1.5; }
.tour-card p.tour-sub { font-size: 14px; color: var(--muted); }
.tour-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 6px; flex-wrap: wrap; gap: 10px; }
.tour-dots { display: flex; gap: 6px; }
.tour-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--hairline); }
.tour-dot.active { background: var(--tag-orange); }
.tour-actions { display: flex; gap: 8px; }
.tour-actions button { padding: 0 14px; }
.tour-card[hidden], .tour-dim[hidden], .tour-cutout[hidden] { display: none; }

/* ---------- intro carousel (centered, not pointing at anything) ---------- */
.carousel-card {
  left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 420px;
}
.carousel-card[hidden] { display: none; }

@media (max-width: 900px) {
  .product-rail { width: 100%; }
}

/* Below 1100px the wordmark, picker, nav and three buttons no longer fit on one line: stack the header. */
@media (max-width: 1100px) {
  .site-header { flex-wrap: wrap; height: auto; padding: 10px 20px; gap: 12px; }
  .site-header .wordmark { margin-right: auto; }
  .site-header .picker-slot { order: 3; flex-basis: 100%; justify-content: flex-start; }
  .site-nav { order: 4; }
}

@media (max-width: 700px) {
  #page-root { padding: 16px; }
  .site-header { padding: 10px 16px; }
  .site-nav { width: 100%; justify-content: space-between; }
  .site-footer { padding: 12px 16px; flex-direction: column; align-items: flex-start; }
  .picker-btn { width: 100%; max-width: none; }
  .picker-panel { left: 0; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* Chart hover/focus targets: no default (thick, rounded) focus ring on click; keyboard focus gets a thin square outline. */
svg [tabindex]:focus { outline: none; }
svg [tabindex]:focus-visible { outline: none; stroke: var(--focus); stroke-width: 1.5; }
.product-below { display: flex; flex-direction: column; gap: 24px; }
.product-below h3 { font-size: 16px; }

/* Type names are lowercase in data; capitalise the first letter where they start a table cell. */
.type-name::first-letter, .families-table td:nth-child(2)::first-letter { text-transform: uppercase; }