/* AiR Hub Registry Prototype — restrained governance aesthetic */

:root {
  /* AiR HUB site palette: white ground, near-black ink, brand red highlight */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", Helvetica, sans-serif;
  --font-display: var(--font-sans);
  --font-mono: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: #f7f7f8;
  --ink: #212121;
  --ink-2: #3a3a3a;
  --heading: #000000;
  --muted: #6b7280;
  --muted-2: #9ca3af;
  --line: #e5e7eb;
  --line-strong: #cfd3d9;
  --accent: #1e1e1e;
  --accent-2: #000000;
  --accent-tint: #f3f4f6;
  --brand: #c24c44;
  --brand-2: color-mix(in srgb, var(--brand) 82%, black);
  --brand-tint: color-mix(in srgb, var(--brand) 9%, white);
  --warn: #8a5a1a;
  --warn-tint: #f6efe1;
  --danger: #a30202;
  --t1: #3f7a52;
  --t2: #b26b00;
  --t3: #a30202;
  --radius: 6px;
  --radius-lg: 8px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
}

.serif {
  font-family: var(--font-display);
  letter-spacing: -0.005em;
}

.mono {
  font-family: var(--font-mono);
}

/* ============ Site chrome ============ */
/* Shown only when config.demo is set (the public demo build). */
.demo-bar {
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  line-height: 1.4;
  padding: 8px 32px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px 16px;
  flex-wrap: wrap;
  text-align: center;
}
.demo-bar a { color: #fff; font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
.demo-bar-toggle {
  font: inherit;
  font-weight: 600;
  color: var(--accent);
  background: #fff;
  border: 1px solid #fff;
  border-radius: 999px;
  padding: 3px 12px;
  cursor: pointer;
}
.demo-bar-toggle[aria-pressed="true"] { background: transparent; color: #fff; }

/* "What can I change?": outline each configurable part and name the file that controls it. */
.show-config [data-config] {
  outline: 2px dashed var(--brand);
  outline-offset: 4px;
  position: relative;
}
.show-config [data-config]::after {
  content: attr(data-config);
  position: absolute;
  top: -14px;
  left: 0;
  z-index: 30;
  font: 600 11px/1.5 var(--font-mono, ui-monospace, Menlo, monospace);
  letter-spacing: 0;
  text-transform: none;
  white-space: nowrap;
  color: #fff;
  background: var(--brand);
  padding: 1px 6px;
  border-radius: 3px;
  pointer-events: none;
}
.show-config [data-config-align="end"]::after { left: auto; right: 0; }
@media (max-width: 560px) { .demo-bar { padding: 8px 16px; } }

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.site-header .row {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 18px;
  user-select: none;
}

/* AiR HUB logo, matching the igiairhub.com nav */
.site-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.site-logo img {
  height: 26px;
  width: auto;
  display: block;
}
.header-divider {
  width: 1px;
  height: 26px;
  background: var(--line-strong);
  flex-shrink: 0;
}

.brand-eyebrow {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  text-align: left;
  transition: color 120ms;
}
.brand-eyebrow:hover { color: var(--brand); }

.page-label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.05;
  color: var(--ink);
  letter-spacing: -0.015em;
  display: flex;
  align-items: center;
  gap: 9px;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  text-align: left;
  transition: color 120ms;
}
.page-label:hover { color: var(--brand); }
.page-label-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
}

.brandmark {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}

.brandmark .crest {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.02em;
}

.brandmark .name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.brandmark .name em {
  color: var(--muted);
  font-style: normal;
  font-weight: 400;
}

.site-header .stage-progress {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.stage-progress .pip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.stage-progress .pip[data-state="active"] {
  background: var(--brand-tint);
  color: var(--brand);
}
.stage-progress .pip[data-state="done"] { color: var(--ink-2); }
.stage-progress .pip[data-state="todo"] { color: var(--muted-2); }
.stage-progress .pip .num {
  width: 18px; height: 18px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid currentColor;
  font-size: 10px;
  font-weight: 600;
}
.stage-progress .pip[data-state="active"] .num,
.stage-progress .pip[data-state="done"] .num {
  color: #fff;
}
.stage-progress .pip[data-state="active"] .num { background: var(--brand); border-color: var(--brand); }
.stage-progress .pip[data-state="done"] .num { background: var(--ink-2); border-color: var(--ink-2); }
.stage-progress .pip[data-state="done"] .num::before { content: "✓"; color: #fff; }
.stage-progress .pip[data-state="done"] .num span { display: none; }
.stage-progress .sep {
  width: 18px;
  height: 1px;
  background: var(--line-strong);
}

/* Header on narrow screens: drop the stage rail, then the page label */
@media (max-width: 900px) {
  .site-header .stage-progress { display: none; }
  .lang-toggle { margin-left: auto; }
}
@media (max-width: 560px) {
  .site-header .row { padding: 12px 16px; gap: 12px; }
  .header-left { gap: 12px; }
  .site-logo img { height: 22px; }
  .lang-globe { display: none; }
}
@media (max-width: 420px) {
  .header-divider, .page-label { display: none; }
}

/* Language toggle */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  margin-left: 20px;
  padding: 3px 3px 3px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  flex-shrink: 0;
}
.lang-globe {
  font-size: 12px;
  margin-right: 5px;
  opacity: 0.7;
  line-height: 1;
}
.lang-opt {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 5px 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background 120ms, color 120ms;
  line-height: 1;
}
.lang-opt .lang-flag {
  font-size: 13px;
  line-height: 1;
  filter: saturate(0.9);
}
.lang-opt:hover { color: var(--ink); }
.lang-opt.active {
  background: var(--accent);
  color: #fff;
}

/* ============ Buttons ============ */
.btn {
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  padding: 11px 20px;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 120ms, border-color 120ms, color 120ms;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.005em;
  line-height: 1;
  white-space: nowrap;
  flex-shrink: 0;
}
.btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn.primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
.btn.secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn.secondary:hover { border-color: var(--ink); }
.btn.ghost {
  background: transparent;
  color: var(--ink-2);
  border-color: transparent;
  padding: 11px 12px;
}
.btn.ghost:hover { color: var(--ink); background: var(--surface-2); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn .arr { font-family: var(--font-display); font-weight: 600; }

/* ============ Layout containers ============ */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
}
.container.narrow { max-width: 820px; }
.container.wide { max-width: 1280px; }

.page {
  padding: 56px 0 96px;
}

/* ============ Start page ============ */
.start-hero {
  padding: 56px 0 40px;
}
.start-eyebrow {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 18px;
}
.start-h1 {
  font-size: clamp(40px, 5.6vw, 64px);
  line-height: 1.04;
  font-weight: 600;
  margin: 0 0 22px;
  letter-spacing: -0.018em;
  color: var(--ink);
  max-width: none;
  text-wrap: balance;
}
.start-lede {
  font-size: 21px;
  line-height: 1.45;
  color: var(--ink-2);
  max-width: 56ch;
  margin: 0 0 32px;
}


.start-rule {
  height: 1px;
  background: var(--line);
  margin: 56px 0 48px;
}

/* ---- How it works band ---- */
.howit {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 36px 40px 32px;
  margin-top: 8px;
}
.howit-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.howit-eyebrow {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}
.howit-note {
  font-size: 12.5px;
  color: var(--muted);
}
.howit-steps {
  list-style: none;
  margin: 0 0 8px;
  padding: 0;
  display: flex;
  align-items: stretch;
  gap: 4px;
}
.howit-step {
  flex: 1;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 4px 8px 4px 0;
}
.howit-num {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
}
.howit-body h4 {
  margin: 4px 0 6px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.005em;
}
.howit-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink-2);
}
.howit-arrow {
  align-self: center;
  color: var(--line-strong);
  font-size: 22px;
  font-family: var(--font-display);
  flex-shrink: 0;
  padding: 0 4px;
}
@media (max-width: 760px) {
  .howit-steps { flex-direction: column; gap: 18px; }
  .howit-arrow { display: none; }
  .howit-step { padding: 0; }
}
.howit-scale {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.howit-scale-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 16px;
}
.howit-tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 760px) {
  .howit-tiers { grid-template-columns: 1fr; }
}
.howit-tier {
  border: 1px solid var(--line);
  border-top: 3px solid var(--line-strong);
  padding: 16px 18px;
  background: var(--surface-2);
}
.howit-tier.t1 { border-top-color: var(--t1); }
.howit-tier.t2 { border-top-color: var(--t2); }
.howit-tier.t3 { border-top-color: var(--t3); }
.howit-tier-top {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
}
.howit-tier-no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
}
.howit-tier-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.howit-tier p {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}
.howit-axis {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 16px;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.howit-axis-line {
  flex: 1;
  height: 2px;
  border-radius: 1px;
  background: linear-gradient(to right, var(--t1), var(--t2), var(--t3));
  opacity: 0.55;
}

/* Learn more about the tiers */
.tier-ref-head {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 56px;
  align-items: start;
  margin-bottom: 4px;
}
@media (max-width: 880px) {
  .tier-ref-head { grid-template-columns: 1fr; gap: 16px; }
}
.tier-ref-head h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 28px;
  line-height: 1.18;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.tier-ref-head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 68ch;
}
.tier-detail-body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.tier-detail-body.stacked {
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 12px;
}
.tier-detail-card {
  border: 1px solid var(--line);
  border-top: 3px solid var(--line-strong);
  background: var(--surface);
  padding: 18px 18px 20px;
}
.tier-detail-card.t1 { border-top-color: var(--t1); }
.tier-detail-card.t2 { border-top-color: var(--t2); }
.tier-detail-card.t3 { border-top-color: var(--t3); }
.tier-detail-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 12px;
}
.tier-detail-no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.tier-detail-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.tier-detail-doc {
  width: 100%;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.tier-detail-desc {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-2);
}
.tier-cats {
  margin: 0 0 14px;
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  display: grid;
  gap: 8px;
}
.tier-cat dt {
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.tier-cat dd {
  margin: 1px 0 0;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.45;
}
.tier-detail-ex-label {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 8px;
}
.tier-detail-ex ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 5px;
}
.tier-detail-ex li {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.45;
  padding-left: 14px;
  position: relative;
}
.tier-detail-ex li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--muted-2);
}

.start-sections {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 880px) {
  .start-sections { grid-template-columns: 1fr; gap: 24px; }
}

.start-section-label {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 8px;
  border-top: 1px solid var(--ink);
  font-weight: 600;
}

.start-section-body h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 28px;
  line-height: 1.18;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.start-section-body p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 68ch;
}
.start-section-body p:last-child { margin-bottom: 0; }


.instruction-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.instruction-list li {
  padding: 14px 0 14px 22px;
  border-top: 1px solid var(--line);
  position: relative;
  font-size: 15.5px;
  color: var(--ink-2);
  line-height: 1.55;
}
.instruction-list li:last-child { border-bottom: 1px solid var(--line); }
.instruction-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 23px;
  width: 9px;
  height: 1px;
  background: var(--accent);
}

.def-list { display: grid; gap: 0; }
.def-list dt {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  margin: 0 0 6px;
  letter-spacing: -0.005em;
}
.def-list .def {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}
.def-list .def:last-child { border-bottom: 1px solid var(--line); }
.def-list dd {
  margin: 0;
  font-size: 15.5px;
  color: var(--ink-2);
  line-height: 1.6;
}
.def-para {
  margin: 0 0 10px;
}
.def-para:last-child {
  margin-bottom: 0;
}
.def-para:not(:first-child) {
  color: var(--muted);
  font-size: 14.5px;
}
.def-source {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--muted);
}
.def-source a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
  transition: border-color 120ms;
}
.def-source a:hover {
  border-bottom-color: var(--accent);
}
.def-inline-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: border-color 120ms;
}
.def-inline-link:hover {
  border-bottom-color: var(--accent);
}
.tier-toggle {
  margin-top: 16px;
}
.tier-toggle > summary {
  cursor: pointer;
  list-style: none;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 9px;
  user-select: none;
  padding: 10px 16px;
  background: var(--accent-tint);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-radius: 999px;
  transition: background 140ms, border-color 140ms, box-shadow 140ms;
}
.tier-toggle > summary:hover {
  background: color-mix(in srgb, var(--accent) 16%, var(--surface));
  border-color: var(--accent);
  box-shadow: 0 2px 10px -4px color-mix(in srgb, var(--accent) 50%, transparent);
}
.tier-toggle > summary::-webkit-details-marker { display: none; }
.tier-toggle > summary::before {
  content: "+";
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1;
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
.tier-toggle[open] > summary::before { content: "\2013"; }
.tier-toggle[open] > summary { margin-bottom: 16px; }


/* ============ Banner (page section markers, mimics Excel blue banner) ============ */
.banner {
  background: var(--accent);
  color: #fff;
  padding: 14px 22px;
  display: flex;
  align-items: baseline;
  gap: 18px;
  font-family: var(--font-display);
  border-radius: 0;
}
.banner .banner-eyebrow {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
  font-weight: 500;
}
.banner h2 {
  margin: 0;
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.005em;
}
.banner .banner-sub {
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 13px;
  color: rgba(255,255,255,0.75);
}

/* ============ Screening ============ */
.screening-wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 24px 32px 96px;
}

.screening-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  margin: 24px 0 6px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.screening-progress .stage {
  font-weight: 500;
  color: var(--ink);
}
.screening-track {
  height: 2px;
  background: var(--line);
  border-radius: 1px;
  overflow: hidden;
  margin-bottom: 36px;
}
.screening-track .fill {
  height: 100%;
  background: var(--accent);
  transition: width 280ms cubic-bezier(0.4, 0.2, 0.2, 1);
}

.screening-eyebrow {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 600;
  font-family: var(--font-display);
}
.screening-question-no {
  font-family: var(--font-display);
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}
.screening-h {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 34px;
  line-height: 1.22;
  margin: 0 0 12px;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.screening-sub {
  font-size: 16px;
  color: var(--muted);
  margin: 0 0 36px;
  max-width: 62ch;
}

.yn-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ---- Grouped screening questions ---- */
.q-list {
  display: grid;
  gap: 14px;
  margin-bottom: 8px;
}
.q-row {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "head toggle"
    "prompt toggle";
  gap: 6px 28px;
  align-items: start;
  transition: border-color 140ms, background 140ms;
}
.q-row.answered { border-color: var(--line); }
.q-row.is-yes {
  border-color: var(--accent);
  background: var(--accent-tint);
}
.q-row-head {
  grid-area: head;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.q-index {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.q-meta {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}
.q-id {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.q-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.q-prompt {
  grid-area: prompt;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 62ch;
}
.yn-toggle {
  grid-area: toggle;
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface-2);
  align-self: center;
}
.yn-seg {
  appearance: none;
  border: 0;
  background: transparent;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  padding: 9px 22px;
  cursor: pointer;
  transition: background 120ms, color 120ms;
  min-width: 64px;
}
.yn-seg:hover { color: var(--ink); }
.yn-seg + .yn-seg { border-left: 1px solid var(--line-strong); }
.yn-seg.sel.no {
  background: var(--ink-2);
  color: #fff;
}
.yn-seg.sel.yes {
  background: var(--accent);
  color: #fff;
}
@media (max-width: 620px) {
  .q-row {
    grid-template-columns: 1fr;
    grid-template-areas: "head" "prompt" "toggle";
  }
  .yn-toggle { justify-self: start; align-self: start; margin-top: 6px; }
}

.group-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  flex-wrap: wrap;
}
.group-status .status-count {
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  letter-spacing: 0.02em;
}
.group-status .status-route { font-weight: 500; }
.group-status .route-yes { color: var(--accent); }
.group-status .route-no { color: var(--t1); }
.group-status .muted { color: var(--muted-2); font-weight: 400; }

/* Anchored screening action bar */
.screening-actionbar {
  position: sticky;
  bottom: 0;
  z-index: 30;
  margin-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 14px 0;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-top: 1px solid var(--line);
}
.screening-actionbar .actionbar-status {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 13px;
  flex-wrap: wrap;
}
.screening-actionbar .status-count {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.02em;
}
.screening-actionbar .actionbar-hint {
  color: var(--muted-2);
}
.screening-actionbar .actionbar-hint.ready {
  color: var(--t1);
  font-weight: 500;
}
.screening-actionbar .actionbar-buttons {
  display: flex;
  gap: 10px;
  align-items: center;
}

.yn-card {
  appearance: none;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 26px 24px;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  transition: transform 140ms, border-color 140ms, background 140ms, box-shadow 140ms;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 120px;
  justify-content: center;
}
.yn-card:hover {
  border-color: var(--accent);
  background: var(--accent-tint);
  transform: translateY(-1px);
}
.yn-card.selected {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px -8px rgba(0,0,0,0.35);
}
.yn-card .yn-label {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.yn-card .yn-hint {
  font-size: 13px;
  color: var(--muted);
}
.yn-card.selected .yn-hint { color: rgba(255,255,255,0.75); }

.intake-grid {
  display: grid;
  gap: 24px;
}
.field-block {
  display: grid;
  gap: 6px;
}
.field-label {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.field-id {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: none;
}
.field-prompt {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.55;
  margin: 2px 0 8px;
  max-width: 64ch;
}

.text-input, .textarea-input, .select-input {
  font-family: inherit;
  font-size: 15px;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  border-radius: var(--radius);
  width: 100%;
  outline: none;
  transition: border-color 120ms, box-shadow 120ms;
}
.text-input:focus, .textarea-input:focus, .select-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}
.textarea-input {
  min-height: 120px;
  resize: vertical;
  line-height: 1.55;
}
.select-input {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 36px;
}
.input-meta {
  display: flex;
  justify-content: flex-end;
  font-size: 11px;
  color: var(--muted-2);
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 48px;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.nav-row.no-border { border-top: 0; padding-top: 0; }
.nav-row.result-actions {
  position: sticky;
  bottom: 0;
  z-index: 10;
  margin-top: 28px;
  padding: 16px 0;
  background: linear-gradient(to top, var(--bg) 70%, rgba(255, 255, 255, 0));
  border-top: 0;
}
.nav-row.result-actions::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line);
}

/* On a phone, buttons may not fit side by side, and a long label may need two lines. */
@media (max-width: 560px) {
  .nav-row,
  .nav-row > div,
  .screening-actionbar .actionbar-buttons { flex-wrap: wrap; }
  .nav-row > div,
  .screening-actionbar .actionbar-buttons { flex: 1 1 auto; }
  .nav-row .btn,
  .screening-actionbar .actionbar-buttons .btn {
    flex: 1 1 auto;
    justify-content: center;
    white-space: normal;
    line-height: 1.25;
  }
}

/* ============ Screening result ============ */
.result-card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 0;
  margin-top: 36px;
  overflow: hidden;
}
.result-card .top {
  padding: 24px 40px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.result-card .top .tier-pill {
  margin-bottom: 0;
}
.result-card .tier-no {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.result-card .tier-no > span:first-child { white-space: nowrap; }
.tier-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: 999px;
  border: 1px solid currentColor;
  background: transparent;
  white-space: nowrap;
  flex-shrink: 0;
}
.tier-pill .pip { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.tier-pill.t1 { color: var(--t1); }
.tier-pill.t2 { color: var(--t2); }
.tier-pill.t3 { color: var(--t3); }

.result-card h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 42px;
  margin: 0 0 12px;
  letter-spacing: -0.018em;
  line-height: 1.1;
}
.result-card .short {
  font-size: 18px;
  color: var(--ink-2);
  margin: 0;
  max-width: 62ch;
  line-height: 1.45;
}
.result-card .desc {
  font-size: 15px;
  color: var(--muted);
  margin: 0;
  max-width: 64ch;
  line-height: 1.6;
}
.result-card .scope {
  padding: 32px 48px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.result-card .scope .col h4 {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
.result-card .scope ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.result-card .scope li {
  font-size: 14px;
  color: var(--ink-2);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}
.result-card .scope li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px; height: 1px;
  background: var(--muted);
}

.result-tiers {
  padding: 28px 40px 32px;
}
.ladder-label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
.tier-ladder {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.tier-ladder .rung {
  border: 1px solid var(--line);
  padding: 16px;
  background: var(--surface-2);
  border-radius: var(--radius);
}
.tier-ladder .rung.not-req {
  opacity: 0.55;
}
.tier-ladder .rung.active {
  border-color: var(--accent);
  background: var(--accent-tint);
}
.tier-ladder .rung-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}
.tier-ladder .rung-no {
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0;
}
.tier-ladder .rung-flag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
}
.tier-ladder .rung-flag.yes { color: var(--t1); }
.tier-ladder .rung-flag.no { color: var(--muted-2); }
.tier-ladder .rung-flag-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  font-size: 9px;
  line-height: 1;
  color: #fff;
}
.tier-ladder .rung-flag.yes .rung-flag-mark { background: var(--t1); }
.tier-ladder .rung-flag.no .rung-flag-mark { background: var(--muted-2); }
.tier-ladder .rung-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}
.tier-ladder .rung-blurb {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

/* ============ Documentation ============ */
.doc-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 32px 96px;
  align-items: start;
}
@media (max-width: 980px) {
  .doc-layout { grid-template-columns: 1fr; gap: 24px; }
}

.doc-toolbar-outer {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.doc-toolbar {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--surface);
}
.doc-toolbar .name {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.doc-toolbar .name .eyebrow {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.12em;
}
.doc-toolbar .name .uc-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.005em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.doc-toolbar .meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12.5px;
  color: var(--muted);
}
.doc-toolbar .progress-mini {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  font-size: 12.5px;
  color: var(--muted);
}
.doc-toolbar .progress-mini .bar {
  width: 140px;
  height: 4px;
  border-radius: 2px;
  background: var(--line);
  overflow: hidden;
}
.doc-toolbar .progress-mini .bar .fill {
  height: 100%;
  background: var(--accent);
  transition: width 220ms;
}
.doc-toolbar .actions {
  display: flex;
  gap: 8px;
}
.toast {
  position: fixed;
  top: 84px;
  right: 32px;
  background: var(--ink);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 180ms, transform 180ms;
  z-index: 100;
  box-shadow: 0 12px 28px -16px rgba(0,0,0,0.4);
}
.toast.show { opacity: 1; transform: translateY(0); }

.doc-nav {
  position: sticky;
  top: 80px;
  font-size: 14px;
  border-left: 1px solid var(--line);
  padding-left: 0;
}
.doc-nav .nav-tier {
  margin-bottom: 20px;
}
.doc-nav .nav-tier-head {
  font-family: var(--font-display);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  padding: 6px 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  flex-wrap: nowrap;
}
.doc-nav .nav-tier-head > span:first-child { flex-shrink: 0; }
.doc-nav .nav-tier-head .tag {
  font-family: var(--font-sans);
  font-size: 10px;
  background: var(--accent-tint);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 3px;
  letter-spacing: 0.06em;
}
.doc-nav .nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 16px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  cursor: pointer;
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.35;
  transition: color 120ms, border-color 120ms, background 120ms;
}
.doc-nav .nav-item:hover { color: var(--ink); }
.doc-nav .nav-item.active {
  border-left-color: var(--accent);
  color: var(--accent);
  font-weight: 500;
  background: var(--accent-tint);
}
.doc-nav .nav-item .check {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 9px;
  color: transparent;
}
.doc-nav .nav-item .check.partial {
  border-color: var(--accent);
  background: radial-gradient(circle, var(--accent) 0%, var(--accent) 35%, transparent 36%);
}
.doc-nav .nav-item .check.full {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.doc-nav .nav-item .count {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--muted);
}

.doc-content {
  min-width: 0;
}

.doc-headline {
  margin-bottom: 28px;
}
.doc-headline-eyebrow {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 10px;
}
.doc-title-input {
  display: block;
  width: 100%;
  border: 0;
  background: transparent;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 34px;
  letter-spacing: -0.018em;
  line-height: 1.1;
  color: var(--ink);
  padding: 2px 0;
  outline: none;
  border-bottom: 1px solid transparent;
  transition: border-color 120ms;
}
.doc-title-input::placeholder { color: var(--muted-2); }
.doc-title-input:hover { border-bottom-color: var(--line); }
.doc-title-input:focus { border-bottom-color: var(--accent); }
.doc-headline-row {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 14px;
}
.doc-headline-field {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.doc-headline-field > span {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-weight: 500;
  white-space: nowrap;
}
.doc-area-input {
  border: 0;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 14.5px;
  color: var(--ink);
  padding: 4px 0;
  outline: none;
  border-bottom: 1px solid var(--line);
  min-width: 240px;
  transition: border-color 120ms;
}
.doc-area-input::placeholder { color: var(--muted-2); }
.doc-area-input:hover { border-bottom-color: var(--line-strong); }
.doc-area-input:focus { border-bottom-color: var(--accent); }

.doc-guidance {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  background: var(--warn-tint);
  border: 1px solid #e7d9bd;
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 28px;
}
.doc-guidance-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--warn);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
}
.doc-guidance p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 76ch;
}

.doc-section {
  margin-bottom: 40px;
}

/* Tier header — strong, color-coded divider per tier */
.tier-header {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 48px 0 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--line-strong);
}
.tier-header.first { margin-top: 8px; }
.tier-header-no {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  padding: 4px 10px;
  border-radius: 999px;
}
.tier-header-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.tier-header.t1 { border-bottom-color: var(--t1); }
.tier-header.t1 .tier-header-no { background: var(--t1); }
.tier-header.t2 { border-bottom-color: var(--t2); }
.tier-header.t2 .tier-header-no { background: var(--t2); }
.tier-header.t3 { border-bottom-color: var(--t3); }
.tier-header.t3 .tier-header-no { background: var(--t3); }

/* Section head — quiet, with inline completion check */
.doc-section-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 0 10px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--line);
}
.doc-section-head .sec-check {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: #fff;
  background: var(--surface);
}
.doc-section-head .sec-check.partial {
  border-color: var(--accent);
  background: radial-gradient(circle, var(--accent) 0 38%, transparent 39%);
}
.doc-section-head .sec-check.full {
  background: var(--accent);
  border-color: var(--accent);
}
.doc-section-head .sec-num {
  font-family: var(--font-sans);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
.doc-section-head .sec-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.screening-context {
  background: var(--accent-tint);
  border: 1px solid var(--line);
  border-left: 2px solid var(--accent);
  padding: 12px 18px 14px;
  margin-bottom: 6px;
}
.field-context {
  color: var(--ink-2);
}
.field-context strong {
  color: var(--accent);
  font-weight: 600;
}
.screening-context-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 5px;
}
.screening-context p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 72ch;
}
.screening-context strong {
  color: var(--ink);
  font-weight: 600;
}
.doc-section .field-row {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 0;
  padding: 24px 26px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}
.doc-section .field-row:not(:last-child) { border-bottom: 0; }
.doc-section .field-row.with-id {
  grid-template-columns: 100px 1fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 720px) {
  .doc-section .field-row.with-id { grid-template-columns: 1fr; gap: 8px; }
}

.field-row .id-col {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
  padding-top: 4px;
}
.field-row .id-col .id-tag { display: block; color: var(--accent); font-weight: 600; margin-bottom: 4px; }
.field-row .field-name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.005em;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.field-row .field-prompt {
  font-size: 14.5px;
  color: var(--muted);
  margin: 0 0 14px;
  line-height: 1.55;
  max-width: 70ch;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 18px;
}
@media (max-width: 560px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-sub {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.contact-sub-label {
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--muted);
  font-weight: 500;
}

.field-row .opt-tag {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-family: var(--font-sans);
  font-weight: 400;
  padding: 2px 6px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
}

/* ============ Preview ============ */
.preview-wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 48px 32px 96px;
}
.preview-head {
  border-bottom: 1px solid var(--line);
  padding-bottom: 32px;
  margin-bottom: 36px;
}
.preview-head .eyebrow {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 14px;
}
.preview-head h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 44px;
  margin: 0 0 10px;
  letter-spacing: -0.018em;
  line-height: 1.1;
}
.preview-head .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
}
.preview-head .meta .sep { width: 4px; height: 4px; border-radius: 50%; background: var(--line-strong); }

.preview-lede-note {
  font-size: 15px;
  color: var(--muted);
  margin: 14px 0 0;
  max-width: 64ch;
  line-height: 1.55;
}

/* At-a-glance summary card */
.preview-summary {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 32px;
  align-items: stretch;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
}
@media (max-width: 720px) {
  .preview-summary { grid-template-columns: 1fr; gap: 24px; }
}
.summary-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 28px;
}
@media (max-width: 480px) {
  .summary-facts { grid-template-columns: 1fr; }
}
.summary-fact .sf-label {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 5px;
}
.summary-fact .sf-value {
  font-size: 15px;
  color: var(--ink);
  line-height: 1.4;
}
.summary-fact .sf-value strong { font-weight: 600; }
.summary-progress {
  border-left: 1px solid var(--line);
  padding-left: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}
@media (max-width: 720px) {
  .summary-progress { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 20px; }
}
.summary-progress .sp-top { display: flex; align-items: baseline; gap: 8px; }
.summary-progress .sp-count {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 600;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.summary-progress .sp-total { color: var(--muted-2); font-size: 20px; }
.summary-progress .sp-unit { font-size: 13px; color: var(--muted); }
.summary-progress .sp-bar {
  height: 6px;
  border-radius: 3px;
  background: var(--line);
  overflow: hidden;
}
.summary-progress .sp-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 240ms;
}
.summary-progress .sp-status { font-size: 12.5px; font-weight: 500; }
.summary-progress .sp-status.ok { color: var(--t1); }
.summary-progress .sp-status.warn { color: var(--warn); }

/* Tier band */
.preview-tier-band {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 40px 0 18px;
}
.preview-tier-band .ptb-name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-2);
}
.preview-tier-band .ptb-rule {
  flex: 1;
  height: 1px;
  background: var(--line);
}

.preview-section {
  margin-bottom: 36px;
}
.preview-section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}
.preview-section h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.01em;
  margin: 0;
}
.preview-section .section-tag {
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.section-status {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.section-status.ok { color: var(--t1); background: color-mix(in srgb, var(--t1) 12%, transparent); }
.section-status.warn { color: var(--warn); background: var(--warn-tint); }

.preview-field {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  align-items: start;
}
.preview-field:last-child { border-bottom: 1px solid var(--line); }
@media (max-width: 720px) {
  .preview-field { grid-template-columns: 1fr; gap: 4px; }
}
.preview-field .fname {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}
.preview-field .fid {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--muted);
  letter-spacing: 0.05em;
  margin-top: 4px;
}
.preview-field .fvalue {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.6;
  white-space: pre-wrap;
}
.preview-field .fvalue.empty {
  color: var(--warn);
  font-style: normal;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.preview-field .fvalue.empty::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warn);
  flex-shrink: 0;
}

.preview-foot {
  margin-top: 56px;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.preview-foot.anchored {
  position: sticky;
  bottom: 0;
  z-index: 30;
  margin-top: 40px;
  padding: 14px 0;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  flex-wrap: wrap;
}
.preview-foot .stamp {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.preview-foot-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

/* ============ Submitted: downloads ============ */
.submit-panel {
  border: 1px solid var(--line);
  border-left: 3px solid var(--t1);
  border-radius: var(--radius-lg);
  background: var(--surface);
  padding: 22px 24px;
  margin: 8px 0 28px;
}
.submit-panel-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 18px;
}
.submit-check {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--t1);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
}
.submit-panel h2 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin: 2px 0 4px;
  color: var(--heading);
}
.submit-panel p { margin: 0; color: var(--muted); font-size: 14.5px; max-width: 60ch; }
.dl-row { display: flex; gap: 10px; flex-wrap: wrap; }
.send-status { margin: 14px 0 0 !important; font-size: 13.5px !important; }
.send-status.ok { color: var(--t1) !important; }
.send-status.refused, .send-status.unreachable { color: var(--danger) !important; }
.send-status .send-retry { margin: 0 0 0 4px; color: inherit; font-size: inherit; font-weight: 600; }
.link-btn {
  margin-top: 16px;
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  font-size: 13px;
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}
.link-btn:hover { color: var(--brand); }
.link-btn.footer-template { margin: 0; font-size: 12px; }

/* ============ Start page actions ============ */
.start-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 0 0 8px; }
.start-actions .btn { font-size: 15px; padding: 13px 22px; }
.import-error { color: var(--danger); font-size: 14px; margin: 12px 0 0; }

.site-logo-text {
  font-weight: 600;
  font-size: 15px;
  color: var(--heading);
  white-space: nowrap;
}

/* ============ Misc ============ */
.divider { height: 1px; background: var(--line); }

.kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--surface-2);
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--muted);
}

.info-wrap {
  position: relative;
  white-space: nowrap;
}
.info-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 13px;
  height: 13px;
  margin-left: 2px;
  vertical-align: super;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--muted);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 8.5px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  transition: border-color 120ms, color 120ms, background 120ms;
  user-select: none;
}
.info-dot:hover,
.info-dot[aria-expanded="true"] {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-tint);
}
.info-pop {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  z-index: 20;
  width: min(420px, 78vw);
  white-space: normal;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: 0 16px 40px -18px rgba(20, 24, 29, 0.45);
  padding: 16px 18px;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 13.5px;
  line-height: 1.6;
  letter-spacing: 0;
  color: var(--ink-2);
}
.info-pop::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 18px;
  width: 12px;
  height: 12px;
  background: var(--surface);
  border-left: 1px solid var(--line-strong);
  border-top: 1px solid var(--line-strong);
  transform: rotate(45deg);
}
.info-pop-title {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 8px;
}

.fade-in {
  animation: fadeIn 280ms cubic-bezier(0.4, 0.2, 0.2, 1);
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media print {
  .site-header, .doc-toolbar, .preview-foot, .nav-row, .btn, .submit-panel { display: none !important; }
  body { background: #fff; }
}