/* Mitigations Explorer (redesign, October 2026): AIRI brand styling.
   Tokens follow docs/redesign-2026-10/BUILD-SPEC.md: font sizes 12 / 14 /
   16 / 20 / 26 / 34 only; radii 10 panels, 6 cards and controls, 4 tags,
   999 chips; one focus ring. Layout: one pane up to 1023px, two panes from
   1024px; phone touches below 768px. */

:root {
  --color-primary: #A32035;
  --color-primary-light: #D07886;
  --color-primary-dark: #5E0E20;
  --color-primary-hover: #8a1b2d;
  --color-primary-tint: #F8E1E5;
  --color-primary-wash: #FBF3F4;
  --color-dark: #1A1A1A;
  --color-text-2: #4A4643;     /* secondary text, 8.9:1 on white */
  --color-text-quote: #2B2826;
  --color-gray: #6E6E6B;       /* muted text, 5.1:1 on white */
  --color-background: #FAFAFA;
  --color-white: #FFFFFF;
  --color-border: #E0E0E0;
  --color-border-strong: #898A8D;  /* form controls */
  --color-fill: #F0F0EE;
  --color-quote-bg: #F7F7F5;
  --color-quote-rule: #C9C9C6;
  --color-ai: #FFF0B3;

  --font-family: 'Figtree', system-ui, sans-serif;
  --fs-12: 12px; --fs-14: 14px; --fs-16: 16px; --fs-20: 20px; --fs-26: 26px; --fs-34: 34px;
  --r-panel: 10px; --r-card: 6px; --r-tag: 4px; --r-chip: 999px;

  --header-h: 64px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  font-family: var(--font-family);
  color: var(--color-dark);
  background: var(--color-background);
  font-size: var(--fs-14);
  line-height: 1.45;
}
body {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}
button, input, select { font: inherit; color: inherit; }
a { color: var(--color-primary); }
@media (hover: hover) { a:hover { color: var(--color-primary-dark); } }
:focus-visible { outline: 2px solid var(--color-dark); outline-offset: 2px; }
h1, h2, h3 { margin: 0; }
[hidden] { display: none !important; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 8px; top: -60px; z-index: 100;
  background: var(--color-white); padding: 0 14px; min-height: 44px;
  display: inline-flex; align-items: center; border-radius: var(--r-card);
}
.skip-link:focus { top: 8px; }

/* AI-written copy: highlighted while "Highlight AI-written text" is on.
   Muted text darkens a step inside a mark to keep 4.5:1 on the yellow; on
   a filled button the mark becomes a yellow underline instead. */
body.ai-marks [data-src="ai"] {
  background: var(--color-ai);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  border-radius: 3px;
}
body.ai-marks :is(.list-note, .muted-line, .toolbar-label, .legend, .sec-caption, .state-msg, .start-foot, .cat-count, .tax-btn-eg, .scroll-hint) [data-src="ai"] { color: #565653; }
body.ai-marks :is(.qchip.is-on, .btn-primary) [data-src="ai"] {
  background: none; border-radius: 0; box-shadow: inset 0 -3px 0 var(--color-ai);
}

/* ---------- Header ---------- */
.app-header {
  flex: 0 0 var(--header-h);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 32px;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: 20;
}
.brand {
  display: flex; align-items: center; gap: 16px;
  color: var(--color-dark); text-decoration: none; min-height: 44px;
}
@media (hover: hover) { .brand:hover { color: var(--color-dark); } .brand:hover .brand-title { text-decoration: underline; } }
.brand-lockup { height: 34px; width: auto; display: block; padding-right: 16px; border-right: 1px solid var(--color-border); }
.brand-mark { display: none; width: 24px; height: 24px; }
.brand-title { font-weight: 700; font-size: var(--fs-20); white-space: nowrap; }

.header-search {
  margin-left: auto;
  position: relative;
  display: flex;
  align-items: center;
  width: min(360px, 32vw);
}
.header-search .search-icon {
  position: absolute; left: 10px; width: 18px; height: 18px; color: var(--color-gray); pointer-events: none;
}
.header-search input {
  width: 100%;
  min-height: 40px;
  padding: 8px 12px 8px 34px;
  font-size: var(--fs-14);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--r-card);
  background: var(--color-white);
}
.header-search input::placeholder { color: var(--color-gray); }
body.no-header-search .header-search { visibility: hidden; }
.search-toggle { display: none; }

.menu-wrap { position: relative; }
.menu-toggle {
  display: inline-flex; align-items: center; gap: 6px; min-height: 40px; padding: 0 12px; cursor: pointer;
  font-size: var(--fs-14); font-weight: 600; color: var(--color-dark);
  background: var(--color-white); border: 1px solid var(--color-border-strong); border-radius: var(--r-card);
}
.menu-toggle svg { width: 20px; height: 20px; }
.menu-toggle[aria-expanded="true"] { border-color: var(--color-dark); }
.site-menu {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 40; width: 300px;
  background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--r-panel);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16); padding: 6px;
}
.site-menu ul { list-style: none; margin: 0; padding: 0; }
.site-menu a, .site-menu button {
  display: flex; align-items: center; width: 100%; min-height: 40px; padding: 6px 10px;
  border: 0; background: none; border-radius: var(--r-card); cursor: pointer; text-align: left;
  font-size: var(--fs-14); color: var(--color-dark); text-decoration: none;
}
@media (hover: hover) { .site-menu a:hover, .site-menu button:hover { background: var(--color-fill); color: var(--color-dark); } }
.menu-head { padding: 10px 10px 2px; font-size: var(--fs-12); font-weight: 700; color: var(--color-gray); text-transform: uppercase; letter-spacing: 0.04em; }
.menu-sep { border-top: 1px solid var(--color-border); margin-top: 6px; padding-top: 6px; }
.about-link {
  display: inline-flex; align-items: center; min-height: 40px;
  font-size: var(--fs-14); font-weight: 600;
  color: var(--color-white); background: var(--color-primary);
  border-radius: var(--r-card); padding: 0 14px; text-decoration: none; white-space: nowrap;
}
@media (hover: hover) { .about-link:hover { color: var(--color-white); background: var(--color-primary-hover); } }
.about-short { display: none; }

/* ---------- Main and screens ---------- */
main {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.view { flex: 1 1 auto; min-height: 0; display: flex; flex-direction: column; overflow: auto; }
.screen { flex: 1 1 auto; min-height: 0; display: flex; flex-direction: column; }

.state-msg {
  margin: auto; padding: 48px 24px; max-width: 560px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  color: var(--color-text-2); font-size: var(--fs-16);
}
.state-msg h1 { color: var(--color-dark); font-size: var(--fs-20); }
.state-msg p { margin: 0; }
.spinner {
  width: 28px; height: 28px; border-radius: 50%;
  border: 3px solid var(--color-fill); border-top-color: var(--color-primary);
}
@media (prefers-reduced-motion: no-preference) { .spinner { animation: spin 0.9s linear infinite; } }
@keyframes spin { to { transform: rotate(360deg); } }

/* A bar of controls under the header (search box, pickers). */
.toolbar {
  flex: 0 0 auto;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 12px 32px;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}
.toolbar-label { font-size: var(--fs-14); font-weight: 600; color: var(--color-gray); }
.toolbar-hint { font-size: var(--fs-14); color: var(--color-text-2); }
.big-input {
  width: min(520px, 100%);
  min-height: 44px;
  font-size: var(--fs-16);
  padding: 10px 12px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--r-card);
  background: var(--color-white);
}
.big-input:focus { border-color: var(--color-primary); }
.select {
  font-size: var(--fs-14); font-weight: 600;
  min-height: 40px; padding: 6px 10px;
  border: 1px solid var(--color-border-strong); border-radius: var(--r-card);
  background: var(--color-white);
}
.back-btn {
  display: none;
  width: 44px; height: 44px; align-items: center; justify-content: center;
  font-size: var(--fs-20); color: var(--color-dark); text-decoration: none;
  border-radius: var(--r-card);
}

/* Two panes from 1024px, each scrolling on its own. */
.panes { flex: 1 1 auto; min-height: 0; display: flex; }
.pane-main {
  flex: 1 1 auto; min-width: 0; overflow: auto;
  padding: 20px 32px 32px;
  display: flex; flex-direction: column; gap: 12px;
}
.pane-side {
  flex: 0 0 440px; min-width: 0; overflow: auto;
  background: var(--color-white);
  border-left: 1px solid var(--color-border);
  padding: 20px 24px 32px;
  display: flex; flex-direction: column; gap: 10px;
}
.pane-main > *, .pane-side > * { flex-shrink: 0; }
.panes.has-record .pane-main { flex: 0 0 min(560px, 40%); background: #F3F3F1; }
.panes.has-record .pane-side { flex: 1 1 auto; padding: 24px 36px 40px; }

.screen-title { font-size: var(--fs-20); font-weight: 700; }
.list-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.list-note, .muted-line { font-size: var(--fs-14); color: var(--color-gray); margin: 0; }
.panel-title { font-size: var(--fs-16); font-weight: 700; }

.link-btn {
  background: none; border: 0; padding: 4px; cursor: pointer;
  color: var(--color-primary); font-size: var(--fs-14);
  text-decoration: underline; text-decoration-color: var(--color-primary-light); text-underline-offset: 3px;
}
@media (hover: hover) { .link-btn:hover { color: var(--color-primary-dark); } }
.more-btn {
  align-self: flex-start;
  min-height: 40px; padding: 8px 14px; cursor: pointer;
  font-size: var(--fs-14); font-weight: 600;
  color: var(--color-primary); background: var(--color-white);
  border: 1px solid var(--color-primary); border-radius: var(--r-card);
}

/* ---------- Chips ---------- */
.chips { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; min-height: 32px;
  font-size: var(--fs-14); font-weight: 600; cursor: pointer;
  color: var(--color-primary-dark); background: var(--color-primary-tint);
  border: 1px solid var(--color-primary); border-radius: var(--r-chip); padding: 4px 12px;
}
@media (hover: hover) { .chip:hover { background: #F2CDD4; } }
.quick-chips, .dist-open { display: none; }

/* ---------- Record cards ---------- */
.rec-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.rec-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--r-card);
  padding: 14px 18px;
  display: flex; flex-direction: column; gap: 6px;
}
.rec-card-name { font-size: var(--fs-16); font-weight: 700; line-height: 1.35; }
.rec-card-name a { display: block; color: var(--color-primary); text-decoration: none; }
.rec-card-name .nm { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
@media (hover: hover) { .rec-card-name a:hover { text-decoration: underline; } }
.rec-card-name .hit { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 2px; }
.rec-card-def {
  margin: 0; font-size: var(--fs-14); color: var(--color-text-quote);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  font-size: var(--fs-12); color: var(--color-text-2);
  background: var(--color-fill); border-radius: var(--r-tag); padding: 2px 8px;
}
.tag-accent { background: var(--color-primary-tint); color: var(--color-primary-dark); }

/* Beside an open record, the list shrinks to names. */
.rec-list.compact .rec-card { padding: 12px 16px; }
.rec-list.compact .rec-card-def, .rec-list.compact .tags { display: none; }
.rec-list.compact .rec-card-name { font-weight: 600; }
.rec-list.compact .rec-card-name a { color: var(--color-dark); }
.rec-list.compact .rec-card.is-open { border: 2px solid var(--color-primary); padding: 11px 15px; }
.rec-list.compact .rec-card.is-open .rec-card-name { font-weight: 700; }

/* ---------- Distribution panel ---------- */
.dist-groups { display: flex; flex-direction: column; gap: 14px; }
.dist-group { display: flex; flex-direction: column; gap: 1px; }
.dist-group-name {
  font-size: var(--fs-12); font-weight: 700;
  padding: 6px 6px 3px; border-bottom: 2px solid;
}
.dist-row {
  display: flex; align-items: center; gap: 10px; width: 100%;
  text-align: left; cursor: pointer;
  background: transparent; border: 0; border-radius: var(--r-tag);
  padding: 4px 6px 4px 10px; min-height: 30px;
  color: var(--color-dark); font-weight: 600;
}
@media (hover: hover) { .dist-row:not(:disabled):hover { background: var(--color-fill); } }
.dist-row.is-selected { background: var(--color-primary-tint); box-shadow: inset 4px 0 0 var(--color-primary); }
.dist-row.is-zero { color: var(--color-gray); font-weight: 400; cursor: default; }
.dist-name { flex: 0 0 52%; font-size: var(--fs-14); line-height: 1.3; }
.bar { flex: 1 1 auto; height: 8px; background: var(--color-fill); border-radius: 4px; overflow: hidden; }
.bar > span { display: block; height: 100%; }
.dist-n { flex: 0 0 36px; text-align: right; font-size: var(--fs-14); font-variant-numeric: tabular-nums; }

/* ---------- Record detail ---------- */
.record { display: flex; flex-direction: column; gap: 24px; max-width: 900px; }
.back-link {
  align-self: flex-start; font-size: var(--fs-14); font-weight: 600;
  text-decoration: none; margin-bottom: -12px; padding: 4px 0;
}
@media (hover: hover) { .back-link:hover { text-decoration: underline; } }
.record-name { font-size: var(--fs-26); line-height: 1.2; font-weight: 700; }
.record-source { margin: -14px 0 0; font-size: var(--fs-14); color: var(--color-text-2); }
.record-sec { display: flex; flex-direction: column; gap: 8px; }
.sec-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; }
.sec-title { font-size: var(--fs-16); font-weight: 700; color: var(--color-dark); }
.sec-caption { margin: -6px 0 0; font-size: var(--fs-14); color: var(--color-text-2); }
.quote {
  margin: 0; padding: 10px 16px;
  border-left: 3px solid var(--color-quote-rule);
  background: var(--color-quote-bg);
  border-radius: 0 var(--r-card) var(--r-card) 0;
  color: var(--color-text-quote);
  white-space: pre-line;
  overflow-wrap: anywhere;
}
.quote-desc { font-style: italic; font-size: var(--fs-16); line-height: 1.55; }
.quote-extra { font-size: var(--fs-14); line-height: 1.5; }
.quote-wrap { position: relative; max-height: 168px; overflow: hidden; }
.extra-sec.is-open .quote-wrap { max-height: none; }
.quote-wrap.is-clamped::after {
  content: ''; position: absolute; left: 3px; right: 0; bottom: 0; height: 56px;
  background: linear-gradient(rgba(247, 247, 245, 0), var(--color-quote-bg));
  border-radius: 0 0 var(--r-card) 0;
}
.extra-more { align-self: flex-start; font-weight: 600; text-decoration: none; padding: 4px 0; }
.sec-toggle { display: none; }

.legend {
  display: flex; flex-direction: column; align-items: flex-end; gap: 2px;
  font-size: var(--fs-12); color: var(--color-gray);
}
.legend-line { display: inline-flex; align-items: center; gap: 6px; }
.person { color: var(--color-text-2); flex: 0 0 auto; }
.tip-wrap { position: relative; display: inline-flex; }
.info-btn {
  width: 28px; height: 28px; margin: -4px; padding: 0; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  border: 0; background: none; border-radius: 50%;
}
.info-btn > span {
  width: 20px; height: 20px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--color-border-strong); background: var(--color-white);
  color: var(--color-text-2); font-size: var(--fs-12); font-weight: 700; line-height: 1;
}
.tip {
  display: none;
  position: absolute; right: -8px; top: 28px; z-index: 30;
  width: min(420px, 80vw);
  background: var(--color-dark); color: var(--color-white);
  border-radius: var(--r-panel); padding: 12px 14px;
  font-size: var(--fs-14); line-height: 1.45; text-align: left;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}
.tip strong { display: block; margin-bottom: 4px; }
.tip a { color: var(--color-white); }
.tip-wrap.is-open .tip { display: block; }
@media (hover: hover) and (min-width: 768px) { .tip-wrap:not(.tip-dismissed):hover .tip { display: block; } }

.class-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px; background: var(--color-border);
  border: 1px solid var(--color-border); border-radius: var(--r-panel); overflow: hidden;
}
.class-cell {
  background: var(--color-white); padding: 8px 12px; display: flex; flex-direction: column; gap: 2px;
  color: var(--color-dark); text-decoration: none; min-height: 44px;
}
@media (hover: hover) { .class-cell:hover { color: var(--color-dark); background: var(--color-primary-wash); } }
.class-tax {
  display: flex; justify-content: space-between; align-items: center; gap: 6px;
  font-size: var(--fs-12); color: var(--color-gray);
}
.class-val { font-size: var(--fs-14); font-weight: 600; line-height: 1.3; }
.class-parent { font-weight: 400; color: var(--color-text-2); }
.class-name { color: var(--color-primary); text-decoration: underline; text-decoration-color: var(--color-primary-light); text-underline-offset: 2px; }

.sim-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.sim-card {
  display: flex; flex-direction: column; gap: 3px;
  background: var(--color-background); border: 1px solid var(--color-border); border-radius: var(--r-card);
  padding: 10px 12px; text-decoration: none; color: var(--color-dark);
}
@media (hover: hover) { .sim-card:hover { border-color: var(--color-primary); color: var(--color-dark); } .sim-card:hover .sim-name { text-decoration: underline; } }
.sim-name { font-size: var(--fs-14); font-weight: 600; }
.sim-meta { font-size: var(--fs-12); color: var(--color-text-2); }

.record-screen { overflow: auto; }
.record-solo { width: 100%; max-width: 900px; margin: 0 auto; padding: 24px 32px 48px; background: var(--color-white); flex: 1 0 auto; }

/* ---------- Buttons and form bits ---------- */
.btn-primary, .btn-secondary, .btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 44px; padding: 0 20px; cursor: pointer; white-space: nowrap;
  font-size: var(--fs-16); font-weight: 600; text-decoration: none;
  border-radius: var(--r-card);
}
.btn-primary { color: var(--color-white); background: var(--color-primary); border: 0; }
@media (hover: hover) { .btn-primary:hover { color: var(--color-white); background: var(--color-primary-hover); } }
.btn-secondary { color: var(--color-dark); background: var(--color-white); border: 1px solid var(--color-border-strong); }
@media (hover: hover) { .btn-secondary:hover { color: var(--color-dark); border-color: var(--color-dark); } }
.btn-outline {
  min-height: 40px; padding: 0 14px; font-size: var(--fs-14);
  color: var(--color-primary); background: var(--color-white); border: 1px solid var(--color-primary);
}
@media (hover: hover) { .btn-outline:hover { background: var(--color-primary-wash); } }
.field-label { font-size: var(--fs-12); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--color-gray); }
.check { display: inline-flex; align-items: center; gap: 8px; font-size: var(--fs-14); cursor: pointer; min-height: 32px; }
.check input { width: 18px; height: 18px; margin: 0; accent-color: var(--color-primary); }
.select-strong { font-size: var(--fs-16); }
.panel {
  background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--r-panel);
  padding: 28px; display: flex; flex-direction: column; gap: 14px;
}
.panel-heading { font-size: var(--fs-20); font-weight: 700; }
.panel-intro { margin: 0; font-size: var(--fs-16); color: var(--color-text-2); }

/* ---------- Start ---------- */
.start-screen { overflow: auto; }
.start-inner {
  width: 100%; max-width: 1184px; margin: 0 auto; padding: 56px 32px 32px;
  display: flex; flex-direction: column; align-items: center; gap: 36px;
}
.start-title { font-size: var(--fs-34); font-weight: 700; text-align: center; }
.start-lede { margin: -20px 0 0; max-width: 720px; text-align: center; font-size: var(--fs-16); color: var(--color-text-2); }
.for-touch { display: none; }
@media (pointer: coarse) { .for-touch { display: inline; } .for-pointer { display: none; } }
.start-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; width: 100%; align-items: start; }
.start-form { display: flex; flex-direction: column; gap: 8px; }
.start-form-row { display: flex; gap: 8px; }
.start-form-row .big-input { flex: 1 1 auto; width: auto; min-width: 0; }
.tax-btns { display: flex; flex-direction: column; gap: 8px; }
.tax-btn {
  display: flex; flex-direction: column; gap: 2px;
  padding: 10px 14px; text-decoration: none; color: var(--color-dark);
  background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--r-card);
}
@media (hover: hover) { .tax-btn:hover { color: var(--color-dark); border-color: var(--color-primary); background: var(--color-primary-wash); } }
.tax-btn-name { font-size: var(--fs-16); font-weight: 600; }
.tax-btn-hint { font-size: var(--fs-14); color: var(--color-text-2); }
.tax-btn-eg { font-size: var(--fs-12); color: var(--color-gray); }
.start-foot { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; font-size: var(--fs-14); color: var(--color-gray); }
.start-foot p { margin: 0; }

/* ---------- About dialog ---------- */
.dialog {
  width: min(560px, calc(100vw - 32px)); max-height: calc(100dvh - 64px);
  padding: 0; border: 0; border-radius: var(--r-panel);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25); color: var(--color-dark);
}
.dialog::backdrop { background: rgba(0, 0, 0, 0.35); }
.dialog-body { padding: 24px 28px 28px; font-size: var(--fs-16); }
.dialog-body p { margin: 0 0 12px; }
.dialog-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }
.dialog-head h2 { font-size: var(--fs-20); }
.dialog-close {
  width: 44px; height: 44px; margin: -10px -12px -10px 0; flex: 0 0 auto;
  background: none; border: 0; border-radius: var(--r-card); font-size: var(--fs-26); line-height: 1; color: var(--color-gray); cursor: pointer;
}

/* ---------- Second-axis step ---------- */
.axis-screen { overflow: auto; align-items: center; padding: 40px 32px; }
.axis-panel { width: min(640px, 100%); padding: 32px; gap: 18px; }
.axis-panel .back-link { margin-bottom: -8px; }
.axis-chose { margin: 0; font-size: var(--fs-14); color: var(--color-text-2); }
.axis-chose strong { color: var(--color-dark); }
.axis-title { font-size: var(--fs-26); font-weight: 700; }
.axis-lede { margin: 0; font-size: var(--fs-16); color: var(--color-text-quote); }
.radio-list { border: 0; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.radio-list legend { padding: 0 0 8px; font-size: var(--fs-14); font-weight: 600; color: var(--color-text-2); }
.radio-card {
  display: flex; align-items: flex-start; gap: 10px; cursor: pointer;
  padding: 10px 14px; min-height: 48px;
  border: 2px solid var(--color-border); border-radius: var(--r-card); background: var(--color-white);
}
.radio-card:has(input:checked) { border-color: var(--color-primary); background: var(--color-primary-wash); }
.radio-card input { margin: 3px 0 0; width: 16px; height: 16px; accent-color: var(--color-primary); flex: 0 0 auto; }
.radio-text { display: flex; flex-direction: column; gap: 2px; }
.radio-name { font-size: var(--fs-16); font-weight: 600; }
.radio-hint { font-size: var(--fs-14); color: var(--color-text-2); }
.axis-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* ---------- Browse ---------- */
.browse-bar .compare-btn { margin-left: auto; }
.cat-pane { flex: 0 0 min(760px, 55%); gap: 18px; }
.cat-group { display: flex; flex-direction: column; gap: 4px; }
.cat-group-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; padding-bottom: 4px; border-bottom: 2px solid; }
.cat-group-name { font-size: var(--fs-16); font-weight: 700; }
.cat-group-q { font-size: var(--fs-14); color: var(--color-text-2); }
.cat-rows { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.cat-row {
  display: flex; align-items: center; gap: 14px;
  padding: 6px 10px; min-height: 36px; border-radius: var(--r-card);
  color: var(--color-dark); text-decoration: none;
}
@media (hover: hover) { .cat-row:hover { color: var(--color-dark); background: var(--color-fill); } }
.cat-row.is-selected { background: var(--color-primary-tint); box-shadow: inset 4px 0 0 var(--color-primary); }
.cat-row.is-selected .cat-name { font-weight: 700; }
.cat-name { flex: 0 0 44%; font-size: var(--fs-14); font-weight: 500; line-height: 1.3; }
.cat-row .bar { height: 10px; border-radius: 5px; }
.cat-n { flex: 0 0 48px; text-align: right; font-size: var(--fs-14); font-variant-numeric: tabular-nums; }
.cat-total {
  display: flex; justify-content: space-between; padding: 8px 10px 0;
  border-top: 2px solid var(--color-dark); font-size: var(--fs-14); font-weight: 700;
}
.cat-back { display: none; }
.cat-head { display: flex; flex-direction: column; gap: 4px; }
.cat-parent { font-size: var(--fs-14); color: var(--color-gray); }
.cat-title { font-size: var(--fs-20); font-weight: 700; }
.cat-def { margin: 0; font-size: var(--fs-14); color: var(--color-text-2); }
.cat-count { margin: 4px 0 0; font-size: var(--fs-14); color: var(--color-gray); }
.side-empty { margin: auto; max-width: 320px; text-align: center; color: var(--color-text-2); font-size: var(--fs-16); }
.pane-side .rec-card { background: var(--color-white); }
.browse-screen .pane-side { flex: 1 1 auto; }

/* ---------- Two taxonomies compared ---------- */
.compare-bar .times { color: var(--color-text-2); }
.compare-bar .only-btn { margin-left: auto; }
.opts-btn { display: none; }
.opts-row { gap: 22px; padding-top: 8px; padding-bottom: 8px; }
.compare-screen .pane-side { flex: 1 1 360px; min-width: 360px; }
.grid-pane { flex: 0 0 auto; max-width: min(66%, 980px); }
.grid-caption { margin: 0; font-size: var(--fs-14); color: var(--color-text-2); }
.grid-key { margin: 0; display: flex; flex-direction: column; gap: 2px; font-size: var(--fs-14); color: var(--color-text-2); max-width: 760px; }
.grid-key div { display: flex; gap: 6px; flex-wrap: wrap; }
@media (max-width: 767px) { .grid-key div { flex-direction: column; gap: 0; } }
.grid-key dt { font-weight: 700; color: var(--color-dark); }
.grid-key dt::after { content: ':'; }
.grid-key dd { margin: 0; }
.grid-wrap { display: flex; align-items: stretch; gap: 4px; min-width: 0; }
.row-axis { flex: 0 0 auto; display: flex; align-items: flex-end; }
.row-axis span {
  writing-mode: vertical-rl; transform: rotate(180deg);
  font-size: var(--fs-16); font-weight: 700; padding-top: 8px; white-space: nowrap;
}
.grid-scroll { overflow: auto; min-width: 0; }
.grid { border-collapse: separate; border-spacing: 3px; font-size: var(--fs-14); }
.grid .corner { background: var(--color-background); }
.col-axis { text-align: left; font-size: var(--fs-16); font-weight: 700; padding: 0 4px 2px; white-space: nowrap; }
.col-head {
  font-size: var(--fs-12); font-weight: 600; line-height: 1.25; padding: 4px;
  text-align: center; vertical-align: bottom; width: 74px; min-width: 74px; max-width: 96px;
  overflow-wrap: normal; hyphens: auto;
}
.row-head {
  text-align: left; font-size: var(--fs-14); font-weight: 600; padding: 4px 8px 4px 4px;
  max-width: 260px; line-height: 1.25;
  position: sticky; left: 0; z-index: 1; background: var(--color-background);
}
.total-head { font-weight: 700; }
.cell { padding: 0; height: 40px; }
.cell-btn, .total-btn {
  width: 100%; min-width: 64px; height: 40px; padding: 0 4px; cursor: pointer;
  border: 0; border-radius: var(--r-tag);
  font-size: var(--fs-14); font-variant-numeric: tabular-nums;
}
.cell.zero { border: 1px solid #EEEEEC; border-radius: var(--r-tag); background: var(--color-white); min-width: 64px; }
.total-btn { background: var(--color-fill); color: var(--color-dark); font-weight: 700; }
@media (hover: hover) {
  .cell-btn:hover { box-shadow: 0 0 0 2px var(--color-dark); }
  .total-btn:hover { background: #E4E4E1; }
}
.cell-btn.is-selected, .total-btn.is-selected { box-shadow: 0 0 0 3px var(--color-primary); font-weight: 700; }
.cell.grand { text-align: center; font-weight: 700; background: #E4E4E1; border-radius: var(--r-tag); padding: 0 8px; }
.scroll-hint { margin: 0; font-size: var(--fs-12); color: var(--color-gray); }
.sheet-top { display: none; }

/* ---------- Bottom sheet (below 1024px) ---------- */
.sheet-scrim { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.3); z-index: 60; }
.bottom-sheet {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 70;
  max-height: 85dvh; display: flex; flex-direction: column;
  background: var(--color-white);
  border-radius: var(--r-panel) var(--r-panel) 0 0;
  box-shadow: 0 -6px 24px rgba(0, 0, 0, 0.16);
  padding-bottom: env(safe-area-inset-bottom);
}
.bottom-sheet-bar { position: relative; display: flex; justify-content: center; align-items: center; min-height: 44px; flex: 0 0 auto; }
.bottom-sheet-handle { width: 40px; height: 4px; border-radius: 2px; background: var(--color-quote-rule); }
.bottom-sheet-close {
  position: absolute; right: 4px; top: 0; width: 44px; height: 44px;
  background: none; border: 0; font-size: var(--fs-20); color: var(--color-gray); cursor: pointer;
}
.bottom-sheet-body { overflow: auto; padding: 0 16px 20px; display: flex; flex-direction: column; gap: 10px; overscroll-behavior: contain; }
.bottom-sheet-body .dist-row { min-height: 44px; }

/* With nothing selected the records pane only holds a hint, so the grid
   gets the room. */
@media (min-width: 1024px) {
  .compare-screen .panes[data-sel="0"] > .pane-side { flex: 0 0 260px; min-width: 260px; }
  .compare-screen .panes[data-sel="0"] > .grid-pane { flex: 1 1 auto; max-width: none; }
}

/* Compare from 1024 to 1199px: a narrower records pane, so the grid is not
   squeezed. */
@media (min-width: 1024px) and (max-width: 1199px) {
  .compare-screen .pane-side { flex: 0 0 320px; min-width: 320px; }
  .grid-pane { flex: 1 1 auto; max-width: none; }
}

/* Touch screens of any width get 44px targets. */
@media (pointer: coarse) {
  .rec-card-name a { padding: 11px 0; margin: -11px 0; }
  .back-link, .cat-row, .select, .btn-outline, .menu-toggle, .about-link, .link-btn { min-height: 44px; }
  .back-link { display: inline-flex; align-items: center; }
  .info-btn { width: 44px; height: 44px; margin: -12px; }
  .cell, .cell-btn, .total-btn { height: 44px; }
}

/* ============================================================
   One pane, up to 1023px
   ============================================================ */
@media (max-width: 1023px) {
  .pane-side { flex: 1 1 auto; border-left: 0; }
  .panes[data-focus="main"] > .pane-side { display: none; }
  .panes[data-focus="side"] > .pane-main { display: none; }
  .panes.has-record .pane-side { padding: 16px 24px 40px; }
  .search-screen:has(.panes.has-record) .search-bar { display: none; }
  .quick-chips { display: flex; gap: 8px; overflow-x: auto; margin: 0 -24px; padding: 0 24px 2px; scrollbar-width: none; }
  .quick-chips::-webkit-scrollbar { display: none; }
  .qchip {
    flex: 0 0 auto; white-space: nowrap; cursor: pointer;
    min-height: 44px; padding: 0 14px;
    font-size: var(--fs-14); color: var(--color-dark);
    background: var(--color-fill); border: 0; border-radius: var(--r-chip);
  }
  .qchip.is-on { color: var(--color-white); background: var(--color-primary); font-weight: 600; }
  .dist-open { display: inline-flex; align-self: flex-start; align-items: center; min-height: 44px; text-decoration: none; }
  .pane-main { padding: 16px 24px 32px; }
  .cat-pane { flex: 1 1 auto; }
  .cat-back { display: inline-flex; align-items: center; min-height: 44px; margin: -8px 0 0; }
  .browse-screen:has(.panes[data-focus="side"]) .browse-bar { display: none; }
  .browse-bar .compare-btn {
    position: fixed; left: 16px; right: 16px; bottom: calc(12px + env(safe-area-inset-bottom)); z-index: 10;
    margin: 0; min-height: 44px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
  }
  .cat-pane { padding-bottom: 88px; }
  .start-cards { grid-template-columns: 1fr; }
  .toolbar { padding: 10px 24px; }
  .grid-pane { max-width: none; flex: 1 1 auto; }
  .compare-screen .pane-side { min-width: 0; }
  .opts-btn { display: inline-flex; margin-left: auto; }
  .compare-bar .only-btn { display: none; }
  .opts-row { display: none; }
  .opts-row.is-open { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
  /* The selected cell's records rise as a bottom sheet over the grid. */
  .compare-screen .panes[data-sheet="open"] > .pane-side {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
    max-height: 62dvh; padding: 0 16px calc(16px + env(safe-area-inset-bottom));
    border-radius: var(--r-panel) var(--r-panel) 0 0; box-shadow: 0 -6px 24px rgba(0, 0, 0, 0.16);
  }
  .compare-screen .panes[data-sheet="open"] > .pane-side .sheet-top {
    display: flex; justify-content: center; align-items: center; position: sticky; top: 0; z-index: 1;
    min-height: 44px; margin: 0 -16px; background: var(--color-white);
  }
  .compare-screen .panes[data-sheet="open"] > .pane-main { padding-bottom: 64dvh; }
  .app-header { padding: 0 24px; }
}

/* ============================================================
   Phones, up to 767px
   ============================================================ */
@media (max-width: 767px) {
  :root { --header-h: 56px; }
  .app-header { padding: 0 8px 0 12px; gap: 8px; }
  .brand { gap: 10px; }
  .brand-lockup { display: none; }
  .brand-mark { display: block; }
  .brand-title { font-size: var(--fs-16); }
  .header-search {
    display: none;
    position: absolute; left: 0; right: 0; top: 0; bottom: 0; width: auto;
    background: var(--color-white); padding: 6px 60px 6px 12px; margin: 0;
  }
  .header-search .search-icon { left: 22px; }
  .header-search input { min-height: 44px; font-size: var(--fs-16); }
  body.header-search-open .header-search { display: flex; }
  body.no-header-search .header-search, body.no-header-search .search-toggle { display: none; }
  .search-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    margin-left: auto; width: 44px; height: 44px; padding: 0;
    background: none; border: 0; border-radius: var(--r-card); color: var(--color-dark); cursor: pointer;
    position: relative; z-index: 2;
  }
  .search-toggle svg { width: 22px; height: 22px; }
  body.no-header-search .menu-wrap { margin-left: auto; }
  .about-link {
    min-height: 44px; padding: 0 10px; font-size: var(--fs-14);
    color: var(--color-primary); background: var(--color-white); border: 1px solid var(--color-primary);
  }
  .about-long { display: none; }
  .menu-toggle { min-height: 44px; min-width: 44px; padding: 0 10px; justify-content: center; border: 0; }
  .menu-label { display: none; }
  .site-menu { position: fixed; left: 8px; right: 8px; top: calc(var(--header-h) + 4px); width: auto; max-height: calc(100dvh - var(--header-h) - 16px); overflow: auto; }
  .site-menu a, .site-menu button { min-height: 44px; }
  .about-short { display: inline; }

  .toolbar { padding: 8px 12px; gap: 8px; flex-wrap: nowrap; }
  .search-bar .toolbar-label, .search-bar .toolbar-hint { display: none; }
  .browse-bar .toolbar-hint { display: none; }
  /* Phone pickers: one labelled row each, full width. */
  .compare-bar {
    display: grid; grid-template-columns: 44px auto minmax(0, 1fr); gap: 6px 8px; align-items: center;
    grid-template-areas: "back rl rs" ". cl cs" ". . opts";
  }
  .compare-bar .back-btn { grid-area: back; }
  .compare-bar label[for="cmp-rows"] { grid-area: rl; }
  .compare-bar #cmp-rows { grid-area: rs; }
  .compare-bar label[for="cmp-cols"] { grid-area: cl; }
  .compare-bar #cmp-cols { grid-area: cs; }
  .compare-bar .opts-btn { grid-area: opts; justify-self: end; min-height: 44px; }
  .compare-bar .times { display: none; }
  .compare-bar .select { width: 100%; min-width: 0; min-height: 44px; }
  .row-head { font-size: var(--fs-12); max-width: 110px; min-width: 104px; }
  .row-axis { display: none; }
  .cell, .cell-btn, .total-btn { height: 44px; }
  .col-head { width: 64px; min-width: 64px; }
  .browse-bar .toolbar-label { font-size: var(--fs-12); }
  .browse-bar .select { flex: 1 1 auto; min-width: 0; min-height: 44px; }

  .start-inner { padding: 20px 16px 24px; gap: 16px; align-items: stretch; }
  .start-title { font-size: var(--fs-26); text-align: left; }
  .start-lede { margin: -8px 0 0; text-align: left; font-size: var(--fs-14); }
  .start-cards { gap: 16px; }
  .panel { padding: 16px; gap: 10px; }
  .panel-heading { font-size: var(--fs-16); }
  .panel-intro { font-size: var(--fs-14); }
  .start-search .field-label { display: none; }
  .tax-btn { min-height: 56px; }
  .start-foot { align-items: flex-start; text-align: left; }
  .check { min-height: 44px; }

  .axis-screen { padding: 16px; align-items: stretch; }
  .axis-panel { padding: 16px; gap: 14px; }
  .axis-panel .back-link { min-height: 44px; display: inline-flex; align-items: center; margin: -8px 0 -12px; }
  .axis-title { font-size: var(--fs-20); }
  .axis-lede { font-size: var(--fs-14); }
  .axis-actions > * { flex: 1 1 100%; white-space: normal; text-align: center; }

  .cat-group-head { flex-direction: column; gap: 2px; }
  .cat-group-q { font-size: var(--fs-12); }
  .cat-row {
    display: grid; grid-template-columns: 1fr auto; gap: 6px 8px; padding: 10px 0; min-height: 44px;
    border-radius: 0; border-bottom: 1px solid #EEEEEC;
  }
  .cat-row.is-selected { padding-left: 10px; }
  .cat-row .bar { grid-column: 1 / -1; grid-row: 2; height: 6px; }
  .cat-name { font-size: var(--fs-14); }
  .back-btn { display: inline-flex; flex: 0 0 auto; }
  .big-input { flex: 1 1 auto; min-width: 0; }
  .pane-main { padding: 12px 16px 24px; gap: 10px; }
  .quick-chips { margin: 0 -16px; padding: 0 16px 2px; }
  .screen-title { font-size: var(--fs-16); }
  .rec-card { padding: 12px 14px; }
  .rec-card-name a { padding: 12px 0; margin: -12px 0; }   /* 44px tap height */
  .link-btn { min-height: 44px; }
  .chip { min-height: 44px; }
  .more-btn { min-height: 44px; }

  .panes.has-record .pane-side, .record-solo { padding: 16px 16px 32px; }
  .record { gap: 22px; }
  .back-link { min-height: 44px; display: inline-flex; align-items: center; margin-bottom: -16px; }
  .record-name { font-size: var(--fs-20); line-height: 1.25; }
  .sec-head { flex-direction: column; gap: 4px; }
  .legend { align-items: flex-start; font-size: var(--fs-14); }
  .info-btn { width: 44px; height: 44px; margin: -12px; }
  .record-source a { padding: 4px 0; }
  .tip { position: fixed; left: 16px; right: 16px; top: auto; bottom: auto; width: auto; max-height: 45dvh; overflow: auto; }
  .class-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .class-cell { padding: 10px 12px; }
  .extra-title, .extra-sec .quote-wrap, .extra-more { display: none; }
  .extra-sec .sec-toggle {
    display: inline-flex; align-self: flex-start; align-items: center; gap: 6px; min-height: 44px;
    padding: 0; background: none; border: 0; cursor: pointer;
    font-size: var(--fs-14); font-weight: 600; color: var(--color-primary);
  }
  .extra-sec.is-open .quote-wrap { display: block; }
  .sim-grid { grid-template-columns: 1fr; }
  .sim-card { min-height: 44px; }
  .sim-card:nth-child(4) { display: none; }
}