/* ==========================================================================
   WriteGust — The Writing Flight Lab · AI Writing QA Platform
   ========================================================================== */

:root {
  --slate: #D5E0E3;
  --ink: #041416;
  --paper: #E4ECEE;
  --peach: #D5E0E3;
  --teal: #00D4B8;
  --amber: #FFB020;
  --coral: #FF6B4A;
  --blue: #3D7A8C;
  --yellow: #FFB020;
  --ai: #5C8A94;
  --ok: #2FBF8A;
  --wait: #FFB020;
  --risk: #FF5C6C;

  --card-dark: #0D2428;
  --card-light: #F2F7F8;
  --border-dark: #1E3C42;
  --border-light: #B7C8CD;
  --heading-dark: #E8FFF8;
  --heading-light: #0A1C1F;
  --body-dark: #9BB8BC;
  --body-light: #44585C;

  --heading: var(--heading-light);
  --body: var(--body-light);
  --card: var(--card-light);
  --border: var(--border-light);
  --page-bg: var(--slate);

  --font: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 6px;

  --shadow-card: 0 12px 28px -18px rgba(4, 20, 22, 0.35);
  --shadow-lift: 0 20px 48px -22px rgba(4, 20, 22, 0.45);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);

  --header-h: 52px;
  --announce-h: 34px;
}

/* ---------- Reset ---------- */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--page-bg);
  color: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

button { font-family: inherit; cursor: pointer; }

ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4, h5, p { margin: 0; }

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--teal);
  outline-offset: 1px;
}

input[type="checkbox"] { accent-color: var(--teal); width: 18px; height: 18px; }

[hidden] { display: none !important; }

[data-site-header], [data-site-footer] { display: contents; }

code {
  font-family: var(--mono);
  font-size: 0.92em;
  background: rgba(99, 104, 108, 0.12);
  padding: 2px 6px;
  border-radius: 5px;
}

.site-shell { display: flex; flex-direction: column; min-height: 100vh; }
.site-shell main { flex: 1; }

.auth-body { margin: 0; min-height: 100vh; }

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.mt-s { margin-top: var(--space-4) !important; }
.mt-m { margin-top: var(--space-6) !important; }
.mt-l { margin-top: var(--space-7) !important; }

.kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: var(--space-3);
}

.kicker::before {
  content: "//";
  font-family: var(--mono);
  letter-spacing: 0;
  color: var(--amber);
  width: auto;
  height: auto;
  background: none;
  border-radius: 0;
}

.lead {
  font-size: 17px;
  color: var(--body);
  line-height: 1.6;
}

.mono-label {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--body);
  opacity: 0.85;
}

.hint-line {
  width: 100%;
  font-size: 13.5px;
  color: var(--body);
  margin-top: var(--space-4);
  position: relative;
  padding-left: 17px;
}

.hint-line::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
}

.hint-line.is-ok { color: var(--ok); }
.hint-line.is-ok::before { background: var(--ok); }
.hint-line.is-warn { color: var(--wait); }
.hint-line.is-warn::before { background: var(--wait); }

.sec-head { max-width: 680px; margin-bottom: var(--space-7); }
.sec-head h2 { font-size: clamp(26px, 3.2vw, 36px); margin-top: var(--space-2); color: var(--heading); }
.sec-head .lead { margin-top: var(--space-3); }

h1, h2, h3, h4, h5 {
  color: var(--heading);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.section { padding: var(--space-9) 0; }
.section--tight { padding: var(--space-7) 0; }
.section--peach { background: var(--peach); }
.section--paper { background: var(--paper); }
.section--slate { background: var(--slate); color: var(--body-light); }

.section--ink {
  background: var(--ink);
  --heading: var(--heading-dark);
  --body: var(--body-dark);
  --card: var(--card-dark);
  --border: var(--border-dark);
  color: var(--body-dark);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  white-space: nowrap;
  text-decoration: none;
}

.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-sm { padding: 8px 14px; font-size: 13px; }
.btn-lg { padding: 14px 22px; font-size: 15.5px; }

.btn-primary {
  background: var(--teal);
  color: var(--ink);
  box-shadow: none;
}

.btn-primary:hover {
  background: #19e0c4;
  box-shadow: none;
}

.btn-coral {
  background: rgba(255, 176, 32, 0.12);
  border-color: var(--amber);
  color: #9A6800;
}

.btn-coral:hover { background: var(--amber); color: var(--ink); }

.btn-ghost {
  background: transparent;
  color: var(--heading-light);
  border-color: rgba(32, 40, 43, 0.22);
}

.btn-ghost:hover { border-color: rgba(32, 40, 43, 0.45); }

.btn-line {
  background: transparent;
  color: var(--heading-light);
  border-color: transparent;
  border-bottom: 1px solid rgba(32, 40, 43, 0.4);
  border-radius: 2px;
  padding: 6px 2px;
}

.btn-line:hover { border-bottom-color: currentColor; }

.btn.is-active { box-shadow: 0 0 0 2px rgba(0, 191, 166, 0.35) inset; }

/* High contrast ghost/line on dark surfaces */
.section--ink .btn-ghost,
.section--ink .btn-line,
.page-stage--ink .btn-ghost,
.page-stage--ink .btn-line,
.flight-bay .btn-ghost,
.flight-bay .btn-line,
.flight-rail .btn-ghost,
.flight-rail .btn-line,
.site-header .btn-ghost,
.site-header .btn-line,
.auth-panel .btn-ghost,
.auth-panel .btn-line,
.auth-aside .btn-ghost,
.auth-aside .btn-line,
.wind-tunnel .btn-ghost,
.wind-tunnel .btn-line,
.storm-chamber .btn-ghost,
.storm-chamber .btn-line,
.release-airlock .btn-ghost,
.release-airlock .btn-line {
  color: var(--heading-dark);
}

.section--ink .btn-ghost,
.page-stage--ink .btn-ghost,
.flight-bay .btn-ghost,
.flight-rail .btn-ghost,
.site-header .btn-ghost,
.auth-panel .btn-ghost,
.auth-aside .btn-ghost,
.wind-tunnel .btn-ghost,
.storm-chamber .btn-ghost,
.release-airlock .btn-ghost {
  border-color: rgba(245, 255, 252, 0.32);
}

.section--ink .btn-ghost:hover,
.page-stage--ink .btn-ghost:hover,
.flight-bay .btn-ghost:hover,
.flight-rail .btn-ghost:hover,
.site-header .btn-ghost:hover,
.auth-panel .btn-ghost:hover,
.wind-tunnel .btn-ghost:hover,
.storm-chamber .btn-ghost:hover,
.release-airlock .btn-ghost:hover {
  border-color: rgba(245, 255, 252, 0.6);
  background: rgba(245, 255, 252, 0.06);
}

.section--ink .btn-line,
.page-stage--ink .btn-line,
.flight-bay .btn-line,
.flight-rail .btn-line,
.site-header .btn-line,
.auth-panel .btn-line,
.wind-tunnel .btn-line,
.storm-chamber .btn-line,
.release-airlock .btn-line {
  border-bottom-color: rgba(245, 255, 252, 0.45);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border-light);
  background: var(--card-light);
  color: var(--heading-light);
}

.chip--teal { border-color: rgba(0, 191, 166, 0.4); color: var(--teal); background: rgba(0, 191, 166, 0.08); }
.chip--coral { border-color: rgba(255, 97, 63, 0.4); color: var(--coral); background: rgba(255, 97, 63, 0.08); }
.chip--risk { border-color: rgba(235, 79, 105, 0.4); color: var(--risk); background: rgba(235, 79, 105, 0.08); }

.linkish {
  background: none;
  border: none;
  padding: 0;
  color: var(--blue);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- Announce bar — telemetry ticker ---------- */

.announce-bar {
  background: #062024;
  border-bottom: 1px solid rgba(0, 212, 184, 0.2);
  color: var(--heading-dark);
}

.announce-bar-inner {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 8px var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.announce-text {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 0;
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--body-dark);
  text-align: center;
  white-space: nowrap;
  max-width: 100%;
  font-family: var(--mono);
}

.announce-tick {
  flex: none;
  padding: 2px 6px;
  border: 1px solid rgba(0, 212, 184, 0.45);
  color: var(--teal);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.announce-mono {
  color: var(--amber);
  font-weight: 600;
}

.announce-cta {
  color: var(--teal);
  font-weight: 600;
  white-space: nowrap;
  border-bottom: 1px solid rgba(0, 212, 184, 0.4);
  flex: none;
}

.announce-cta:hover { color: #19e0c4; border-bottom-color: #19e0c4; }

@media (max-width: 820px) {
  .announce-text {
    white-space: normal;
    flex-wrap: wrap;
    font-size: 11.5px;
    gap: 6px 10px;
  }
}

/* ---------- Header — dark narrow bar ---------- */

.site-top { position: sticky; top: 0; z-index: 100; }

.site-header {
  background: var(--ink);
  border-bottom: 1px solid var(--border-dark);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2);
}

.header-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 10px var(--space-6);
  display: grid;
  grid-template-columns: minmax(120px, 1fr) auto minmax(120px, 1fr);
  align-items: center;
  column-gap: var(--space-4);
  min-height: var(--header-h);
}

.header-left { justify-self: start; min-width: 0; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.logo-mark { flex: none; line-height: 0; display: inline-flex; align-items: center; justify-content: center; }
.logo-mark svg { display: block; width: 28px; height: 28px; }
.logo-mark--hero svg { width: 44px; height: 44px; }

.brand-lockup {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: var(--space-2);
}
.flight-brand .brand-lockup h1 { margin: 0; }

.brand-name {
  color: var(--heading-dark);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.nav-main {
  justify-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 4px 14px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--body-dark);
  padding: 6px 0;
  white-space: nowrap;
  transition: color 0.2s var(--ease);
}

.nav-link:hover { color: var(--heading-dark); }

.nav-hash {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: -0.12em;
  flex: none;
  margin-right: 4px;
}

.nav-link.is-active { color: var(--teal); }

.header-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.header-signin {
  color: var(--heading-dark);
  font-size: 13.5px;
  font-weight: 600;
  white-space: nowrap;
  padding: 6px 2px;
  border-bottom: 1px solid transparent;
}

.header-signin:hover {
  color: var(--teal);
  border-bottom-color: rgba(0, 191, 166, 0.4);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-dark);
  color: var(--heading-dark);
  border-radius: var(--radius-sm);
  width: 40px;
  height: 40px;
  font-size: 18px;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding: 0 var(--space-6) var(--space-5);
  background: var(--ink);
  border-bottom: 1px solid var(--border-dark);
}

.mobile-nav.is-open { display: flex; }

.mobile-nav a {
  padding: var(--space-3) var(--space-2);
  color: var(--body-dark);
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius-sm);
}

.mobile-nav a:hover { color: var(--heading-dark); background: rgba(245, 255, 252, 0.06); }
.mobile-nav a.is-active { color: var(--teal); }
.mobile-nav .btn { margin-top: var(--space-2); align-self: flex-start; }

.user-menu { position: relative; }

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--ink);
  border: none;
  font-weight: 700;
  font-size: 12px;
}

.user-dropdown {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  min-width: 220px;
  background: var(--card-dark);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  flex-direction: column;
  gap: 2px;
  box-shadow: var(--shadow-lift);
  z-index: 20;
}

.user-dropdown.is-open { display: flex; }

.user-workspace-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--body-dark);
  padding: var(--space-2) var(--space-3) var(--space-1);
}

.user-dropdown a,
.user-dropdown button {
  display: block;
  width: 100%;
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--heading-dark);
  background: transparent;
  border: none;
  font-size: 14px;
  font-weight: 500;
}

.user-dropdown a:hover,
.user-dropdown button:hover { background: rgba(245, 255, 252, 0.06); }

.user-dropdown [data-sign-out] {
  color: var(--coral);
  margin-top: 4px;
  border-top: 1px solid var(--border-dark);
  padding-top: var(--space-3);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--ink);
  color: var(--body-dark);
  padding-top: var(--space-9);
}

.footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-8);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.footer-col h4 {
  color: var(--heading-dark);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}

.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { font-size: 14.5px; color: var(--body-dark); transition: color 0.2s var(--ease); }
.footer-col a:hover { color: #fff; }

.footer-bar { border-top: 1px solid rgba(245, 255, 252, 0.08); padding: var(--space-6) 0; }

.footer-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--body-dark);
}

.footer-tagline {
  flex: 1 1 100%;
  max-width: 720px;
  font-size: 13.5px;
  color: var(--body-dark);
  opacity: 0.85;
  order: 2;
}

.footer-legal { display: flex; gap: var(--space-5); }
.footer-legal a:hover { color: #fff; }

/* ---------- Chamber (product pages) + page-stage aliases ---------- */

.chamber,
.page-stage {
  padding: var(--space-5) 0 var(--space-6);
  position: relative;
  overflow: hidden;
}

.chamber--paper,
.page-stage--paper { background: var(--paper); }
.chamber--peach,
.page-stage--peach { background: var(--slate); }

.chamber--ink,
.page-stage--ink {
  background: var(--ink);
  --heading: var(--heading-dark);
  --body: var(--body-dark);
  --card: var(--card-dark);
  --border: var(--border-dark);
  color: var(--body-dark);
}

.chamber--ink::after,
.page-stage--ink::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 39px,
      rgba(0, 212, 184, 0.04) 39px,
      rgba(0, 212, 184, 0.04) 40px
    ),
    radial-gradient(520px 280px at 100% 0%, rgba(255, 176, 32, 0.08), transparent 70%);
  pointer-events: none;
}

.chamber > .container,
.page-stage > .container { position: relative; z-index: 1; }

.chamber-deck,
.page-stage-body { width: 100%; }

.chamber-mast,
.page-stage-head {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(240px, 0.75fr);
  gap: var(--space-5);
  align-items: end;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid rgba(4, 20, 22, 0.1);
}

.chamber--ink .chamber-mast,
.page-stage--ink .page-stage-head { border-bottom-color: rgba(232, 255, 248, 0.1); }

.chamber-mast--solo { align-items: stretch; }

.chamber-copy h1,
.page-stage-copy h1 {
  font-size: clamp(26px, 3.4vw, 40px);
  color: var(--heading);
  margin-top: var(--space-2);
  max-width: 24ch;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.chamber-copy .lead,
.page-stage-copy .lead {
  margin-top: var(--space-3);
  max-width: 62ch;
  font-size: 15.5px;
}

.chamber-actions,
.page-stage-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: flex-start;
  max-width: none;
}

.chamber-telem,
.page-stage-companion {
  padding: var(--space-4);
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius-md);
}

.telem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.telem-grid div {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-2);
  border: 1px solid rgba(4, 20, 22, 0.08);
  background: rgba(0, 212, 184, 0.04);
}

.chamber--ink .telem-grid div { border-color: rgba(232, 255, 248, 0.08); }

.telem-grid b {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--heading);
}

.telem-grid span {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--body);
}

.companion-rail {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.companion-rail li {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(32, 40, 43, 0.08);
  font-size: 13px;
}

.page-stage--ink .companion-rail li,
.chamber--ink .companion-rail li { border-bottom-color: rgba(255, 255, 255, 0.08); }
.companion-rail b { color: var(--teal); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.companion-rail span { color: var(--heading); }

.page-stage-head--split {
  grid-template-columns: 1.2fr 0.9fr;
  align-items: stretch;
}

.page-stage-head--split .page-stage-actions {
  justify-content: flex-start;
  margin-top: var(--space-4);
}

.stage-panel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.85fr);
  gap: var(--space-5);
  align-items: stretch;
  width: 100%;
}

.stage-panel-main {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  min-height: 360px;
}

.stage-panel-aside {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.stage-panel-aside .mono-label { margin-bottom: var(--space-3); }

.preview-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(99, 104, 108, 0.12);
  font-size: 13.5px;
}

.preview-row span { color: var(--body); }
.preview-row b { color: var(--heading); font-weight: 600; }
.preview-row b.is-warn { color: var(--wait); }

/* ---------- Home — Writing Flight Lab ---------- */

.flight-hero {
  position: relative;
  background: #061618;
  color: var(--heading-dark);
  padding: var(--space-6) 0 var(--space-5);
  overflow: hidden;
}

.flight-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 47px,
      rgba(0, 212, 184, 0.05) 47px,
      rgba(0, 212, 184, 0.05) 48px
    );
  pointer-events: none;
}

.flight-hero > .container { position: relative; z-index: 1; }

.flight-hero-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1.5fr);
  gap: var(--space-5);
  align-items: stretch;
  margin-bottom: var(--space-5);
}

.flight-rail {
  color: var(--heading-dark);
  padding: var(--space-2) var(--space-2) var(--space-4) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-height: 0;
}

.flight-rail .brand-lockup {
  justify-content: flex-start;
  margin: 0;
}

.flight-rail h1 {
  font-size: clamp(36px, 4.5vw, 52px);
  color: #f2fffb;
  margin: 0;
  letter-spacing: -0.04em;
  line-height: 1;
}

.flight-rail .brand-headline {
  font-size: clamp(18px, 2vw, 24px);
  margin: var(--space-2) 0 0;
  color: #f2fffb;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
  white-space: normal;
}

.flight-rail .brand-desc {
  margin: 0;
  max-width: 42ch;
  font-size: 14.5px;
  line-height: 1.5;
  color: #c5dde0;
}

.flight-rail .brand-slogan {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--amber);
  font-weight: 500;
}

.flight-rail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.flight-rail .btn-ghost {
  color: #f2fffb;
  border-color: rgba(242, 255, 251, 0.45);
  background: rgba(242, 255, 251, 0.04);
}

.flight-rail .btn-ghost:hover {
  border-color: rgba(242, 255, 251, 0.75);
  background: rgba(242, 255, 251, 0.1);
}

.rail-meter {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-2);
  padding: var(--space-4);
  border: 1px solid rgba(0, 212, 184, 0.4);
  background: #0d2428;
  min-height: 220px;
}

.rail-meter .mono-label { color: var(--teal); }

.rail-meter-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.rail-meter-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(232, 255, 248, 0.12);
  font-size: 13px;
}

.rail-meter-list span {
  color: #9bb8bc;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rail-meter-list b {
  color: #f2fffb;
  font-weight: 600;
  text-align: right;
  font-size: 13px;
}

.rail-meter-list b.is-warn { color: var(--amber); }

.rail-meter-note {
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px dashed rgba(232, 255, 248, 0.16);
}

.rail-meter-note .mono-label { color: #9bb8bc; }

.rail-meter-note code {
  display: block;
  margin-top: 8px;
  padding: 0;
  background: none;
  color: #d7ebee;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.45;
  white-space: pre-wrap;
}

.flight-rail .kicker--below {
  margin-top: var(--space-2);
  justify-content: flex-start;
  color: var(--teal);
}

.flight-hero .instrument-strip {
  border-top-color: rgba(232, 255, 248, 0.14);
}

.flight-hero .instrument-hash {
  background: rgba(242, 247, 248, 0.08);
  color: #f2fffb;
  border-left-color: var(--teal);
}

.flight-hero .instrument-hash:hover {
  background: rgba(242, 247, 248, 0.14);
  border-left-color: var(--amber);
}

.flight-hero .instrument-hash b { color: var(--teal); }
.flight-hero .instrument-hash span { color: #e8fff8; }

/* legacy brand block kept for safety */
.flight-brand {
  text-align: left;
  max-width: none;
  margin: 0 0 var(--space-6);
}

.flight-brand .brand-lockup { margin-top: 0; }

.flight-brand h1 {
  font-size: clamp(40px, 6vw, 64px);
  color: var(--heading-light);
  margin-top: 0;
  letter-spacing: -0.03em;
}

.flight-brand .brand-headline {
  font-size: clamp(18px, 2.2vw, 26px);
  margin: var(--space-4) auto 0;
  max-width: none;
  white-space: nowrap;
  letter-spacing: -0.02em;
  color: var(--heading-light);
  font-weight: 700;
}

.flight-brand .brand-desc {
  margin: var(--space-4) auto 0;
  max-width: 68ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.55;
  color: var(--body-light);
}

.flight-brand .brand-slogan {
  margin-top: var(--space-3);
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--teal);
  font-weight: 600;
}

.flight-brand .kicker--below {
  margin-top: var(--space-5);
  justify-content: center;
}

.flight-brand .kicker { justify-content: center; }

.flight-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-top: var(--space-5);
}

.flight-bay {
  background: var(--ink);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lift);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: min(70vh, 680px);
  --heading: var(--heading-dark);
  --body: var(--body-dark);
  color: var(--body-dark);
}

.pressure-strip {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 3px;
  padding: 0 var(--space-5);
  height: 8px;
  background: rgba(0, 0, 0, 0.2);
}

.pressure-strip span {
  background: linear-gradient(90deg, var(--teal), var(--amber));
  opacity: 0.35;
  transform-origin: left center;
}

[data-flight-lab].is-running .pressure-strip span {
  animation: pressure-pulse 0.9s ease-in-out infinite alternate;
}

[data-flight-lab].is-running .pressure-strip span:nth-child(2) { animation-delay: 0.08s; }
[data-flight-lab].is-running .pressure-strip span:nth-child(3) { animation-delay: 0.16s; }
[data-flight-lab].is-running .pressure-strip span:nth-child(4) { animation-delay: 0.24s; }
[data-flight-lab].is-running .pressure-strip span:nth-child(5) { animation-delay: 0.32s; }
[data-flight-lab].is-running .pressure-strip span:nth-child(6) { animation-delay: 0.4s; }

@keyframes pressure-pulse {
  from { opacity: 0.25; transform: scaleX(0.55); }
  to { opacity: 0.95; transform: scaleX(1); }
}

.flight-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-dark);
  background: rgba(255, 255, 255, 0.03);
}

.flight-toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-left: auto;
}

.flight-status {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--body-dark);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-dark);
  background: rgba(0, 0, 0, 0.15);
}

.flight-status.is-run { color: var(--yellow); border-color: rgba(243, 207, 78, 0.4); }
.flight-status.is-pass { color: var(--teal); border-color: rgba(0, 191, 166, 0.4); }
.flight-status.is-block { color: var(--coral); border-color: rgba(255, 97, 63, 0.4); }

.flight-compare {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  padding: var(--space-5);
  background:
    linear-gradient(180deg, rgba(0, 191, 166, 0.05), transparent 40%),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 47px,
      rgba(0, 191, 166, 0.04) 47px,
      rgba(0, 191, 166, 0.04) 48px
    );
}

.draft-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-dark);
  background: rgba(255, 255, 255, 0.04);
  min-height: 280px;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.draft-col.is-active {
  border-color: rgba(0, 191, 166, 0.5);
  box-shadow: inset 0 0 0 1px rgba(0, 191, 166, 0.14), 0 0 0 1px rgba(0, 191, 166, 0.08);
  transform: translateY(-2px);
}

.draft-col.is-flagged {
  border-color: rgba(255, 97, 63, 0.5);
}

.draft-col.is-clean.is-passed {
  border-color: rgba(0, 191, 166, 0.45);
  background: rgba(0, 191, 166, 0.08);
}

.draft-col-head {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.draft-col-head b {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--teal);
}

.draft-col-head span {
  font-size: 12px;
  color: var(--body-dark);
}

.draft-body {
  flex: 1;
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--heading-dark);
  min-height: 6.5em;
}

.draft-flags {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 52px;
}

.draft-flag {
  display: block;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  line-height: 1.35;
  border: 1px solid var(--border-dark);
  background: rgba(255, 255, 255, 0.04);
  color: var(--body-dark);
  animation: flag-rise 0.35s var(--ease);
}

.draft-flag.is-idle { font-style: italic; opacity: 0.75; }
.draft-flag.is-pass {
  border-color: rgba(0, 191, 166, 0.4);
  color: var(--teal);
  background: rgba(0, 191, 166, 0.08);
}

.draft-flag.flight-flag--omission { border-color: var(--wait); background: rgba(233, 167, 60, 0.15); color: var(--yellow); }
.draft-flag.flight-flag--fact { border-color: var(--risk); background: rgba(235, 79, 105, 0.12); color: var(--risk); }
.draft-flag.flight-flag--tone { border-color: var(--coral); background: rgba(255, 97, 63, 0.12); color: var(--coral); }
.draft-flag.flight-flag--format { border-color: var(--blue); background: rgba(73, 103, 242, 0.12); color: var(--blue); }

.draft-flag b { font-weight: 700; margin-right: 4px; }

@keyframes flag-rise {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.flight-gate-row {
  display: grid;
  grid-template-columns: minmax(180px, 240px) 1fr;
  gap: var(--space-4);
  padding: 0 var(--space-5) var(--space-4);
  align-items: stretch;
}

.release-gate {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-dark);
  background: rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
  transition: border-color 0.35s var(--ease), background 0.35s var(--ease);
}

.release-gate strong {
  font-size: 14px;
  color: var(--heading-dark);
  font-weight: 600;
}

.release-gate.is-closed {
  border-color: rgba(255, 97, 63, 0.4);
}

.release-gate.is-open {
  border-color: rgba(0, 191, 166, 0.5);
  background: rgba(0, 191, 166, 0.1);
}

.released-slot {
  min-height: 88px;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 2px dashed rgba(0, 191, 166, 0.35);
  background: rgba(0, 191, 166, 0.04);
  display: flex;
  align-items: center;
}

.release-idle {
  font-size: 13px;
  color: var(--body-dark);
  font-style: italic;
}

.released-card {
  width: 100%;
  animation: flag-rise 0.4s var(--ease);
}

.released-card .mono-label { display: block; margin-bottom: 6px; color: var(--teal); }
.released-card.is-warn .mono-label { color: var(--coral); }
.released-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--heading-dark);
}

.flight-bay .hint-line {
  margin: 0;
  padding: 0 var(--space-5) var(--space-5);
  font-size: 13.5px;
  color: var(--body-dark);
}

.instrument-strip {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 6px;
  margin-top: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px dashed rgba(4, 20, 22, 0.16);
}

.instrument-hash {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 8px;
  border-left: 2px solid var(--teal);
  background: rgba(242, 247, 248, 0.7);
  color: var(--heading-light);
  text-decoration: none;
  min-height: 64px;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.instrument-hash:hover {
  background: #fff;
  border-left-color: var(--amber);
}

.instrument-hash b {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--teal);
  letter-spacing: 0.04em;
}

.instrument-hash span {
  font-size: 12px;
  font-weight: 600;
  line-height: 1.25;
}

.flight-log-head {
  margin-bottom: var(--space-5);
}

.flight-log-head h2 {
  margin-top: var(--space-2);
  font-size: clamp(22px, 2.8vw, 32px);
  color: var(--heading-light);
  letter-spacing: -0.02em;
  max-width: 28ch;
}

.flight-log {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  counter-reset: none;
}

.flight-log li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--space-4);
  border: 1px solid rgba(4, 20, 22, 0.12);
  background: var(--card-light);
  min-height: 140px;
}

.flight-log b {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--amber);
  letter-spacing: 0.04em;
}

.flight-log span {
  font-size: 14px;
  color: var(--heading-light);
  line-height: 1.45;
}

.instrument-rail {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-top: var(--space-5);
}

.instrument-pill {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(11, 32, 40, 0.12);
  background: rgba(255, 255, 255, 0.55);
  color: var(--heading-light);
  text-decoration: none;
}

.instrument-pill b {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--teal);
}

.instrument-pill span {
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.25;
}

.pain-strip {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
}

.pain-strip li {
  font-size: 14px;
  color: var(--body-dark);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-dark);
}

.pain-strip b { color: var(--heading-dark); }

.stage-meta {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  display: grid;
  gap: 8px;
}

.stage-meta li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13.5px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(99, 104, 108, 0.14);
}

.stage-meta span { color: var(--body); }
.stage-meta b { color: var(--heading); font-weight: 600; text-align: right; }
.stage-meta b.is-warn { color: var(--wait); }
.stage-meta b.is-ok { color: var(--ok); }

.section--ink .pain-strip li {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-dark);
  color: var(--body-dark);
}
.section--ink .pain-strip b { color: var(--heading-dark); }

/* How-it-works / feature grids */

.how-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  counter-reset: step;
}

.how-grid li {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-4) var(--space-4);
  font-size: 13.5px;
  color: var(--body);
  counter-increment: step;
}

.how-grid li::before {
  content: counter(step);
  position: absolute;
  top: -13px;
  left: var(--space-4);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.how-grid li b {
  display: block;
  color: var(--heading);
  font-size: 14.5px;
  margin-bottom: 4px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

.feature-card b {
  display: block;
  color: var(--heading);
  font-size: 15px;
  margin-bottom: var(--space-2);
}

.feature-card p { font-size: 14px; color: var(--body); }

/* ---------- Wind tunnel ---------- */

.wind-tunnel.stage-panel {
  display: block;
  padding: var(--space-5);
}
.wind-tunnel .stage-panel-grid > div:first-child,
.tunnel-zones {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--space-3);
  position: relative;
  padding: var(--space-2) 0 var(--space-4);
}
.wind-tunnel .stage-panel-grid > div:first-child::before,
.tunnel-zones::before {
  content: "";
  position: absolute;
  left: 5%;
  right: 5%;
  top: 50%;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--coral));
  opacity: 0.35;
  z-index: 0;
}

.wind-tunnel {
  position: relative;
}

.tunnel-zone {
  position: relative;
  z-index: 1;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-3);
  text-align: center;
  cursor: pointer;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.tunnel-zone b {
  display: block;
  font-size: 13px;
  color: var(--heading);
  margin-bottom: 4px;
}

.tunnel-zone p { font-size: 11.5px; color: var(--body); line-height: 1.4; }

.tunnel-zone.is-active {
  border-color: var(--teal);
  box-shadow: 0 0 0 2px rgba(0, 191, 166, 0.2);
  transform: translateY(-4px);
}

.tunnel-zone.is-passed { border-color: rgba(0, 191, 166, 0.35); opacity: 0.75; }
.tunnel-zone.is-removed { opacity: 0.35; text-decoration: line-through; }

.wind-tunnel.is-running .tunnel-zone.is-active::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: inherit;
  border: 2px solid var(--teal);
  animation: tunnel-pulse 0.8s ease infinite;
}

@keyframes tunnel-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ---------- Vane array ---------- */

.vane-array.stage-panel {
  display: block;
  width: 100%;
}

.vane-blade-grid,
.vane-array .stage-panel-grid > div:first-child {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.vane-blade {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-4);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 8%, 100% 92%, 0 100%);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
  min-height: 140px;
}

.vane-blade b { display: block; color: var(--heading); font-size: 14px; }
.vane-blade span { font-size: 12.5px; color: var(--body); margin-top: 4px; display: block; }

.vane-blade.is-selected {
  border-color: var(--teal);
  transform: scale(1.02);
  box-shadow: var(--shadow-card);
}

.vane-blade.is-weighted::before {
  content: "W";
  position: absolute;
  top: 8px;
  right: 10px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--teal);
  font-weight: 700;
}

.vane-meta {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-3);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--teal);
}

/* ---------- Prompt spool ---------- */

.prompt-spool.stage-panel {
  display: block;
  width: 100%;
}

.prompt-spool .stage-panel-grid > div:first-child,
.spool-stack {
  display: grid;
  grid-template-columns: minmax(120px, 160px) minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
}

.spool-reel {
  aspect-ratio: 1;
  width: 100%;
  max-width: 160px;
  border-radius: 50%;
  border: 6px solid rgba(11, 32, 40, 0.2);
  background:
    conic-gradient(from 0deg, var(--teal), var(--coral), var(--teal));
  position: relative;
  --unwind: 0;
  transition: transform 0.4s var(--ease);
}

.spool-reel::after {
  content: "";
  position: absolute;
  inset: 22%;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid rgba(255, 255, 255, 0.12);
}

.prompt-spool.is-running .spool-reel { animation: spool-spin 2s linear infinite; }

@keyframes spool-spin {
  to { transform: rotate(360deg); }
}

.spool-layers {
  display: grid;
  gap: var(--space-2);
}

.spool-layer {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  font-size: 13.5px;
  transition: margin-left 0.3s var(--ease), border-color 0.2s var(--ease);
}

.spool-layer b { color: var(--heading); margin-right: 8px; }

.spool-layer.is-selected { border-color: var(--teal); }
.spool-layer.is-unwound { margin-left: calc(var(--space-4) * var(--unwind, 1)); border-color: var(--coral); }

.spool-diff {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px dashed rgba(99, 104, 108, 0.2);
  font-size: 13px;
  color: var(--body);
}

.spool-diff code {
  display: block;
  margin-top: 8px;
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  background: rgba(11, 32, 40, 0.04);
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.45;
  color: var(--heading);
  white-space: pre-wrap;
}

/* ---------- Kaleidoscope ---------- */

.kaleidoscope.stage-panel {
  display: block;
  width: 100%;
  --rotate: 0deg;
}

.kaleidoscope-wheel {
  aspect-ratio: 1;
  max-width: 420px;
  margin: 0 auto;
  position: relative;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--card);
  transform: rotate(var(--rotate));
  transition: transform 0.6s var(--ease);
}

.kaleidoscope-wheel.is-rotating { transition-duration: 0.9s; }

.kaleidoscope-facet {
  position: absolute;
  width: 38%;
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--card-light);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.kaleidoscope-facet b { display: block; color: var(--heading); font-size: 13px; }

.kaleidoscope-facet:nth-child(1) { top: 4%; left: 31%; }
.kaleidoscope-facet:nth-child(2) { top: 22%; right: 2%; }
.kaleidoscope-facet:nth-child(3) { bottom: 22%; right: 2%; }
.kaleidoscope-facet:nth-child(4) { bottom: 4%; left: 31%; }
.kaleidoscope-facet:nth-child(5) { bottom: 22%; left: 2%; }
.kaleidoscope-facet:nth-child(6) { top: 22%; left: 2%; }
.kaleidoscope-facet:nth-child(7) { top: 42%; left: 31%; background: rgba(255, 97, 63, 0.08); border-color: rgba(255, 97, 63, 0.35); }

.kaleidoscope-facet.is-selected { border-color: var(--teal); box-shadow: var(--shadow-card); }
.kaleidoscope-facet.is-removed { opacity: 0.35; }

.kaleidoscope-preview {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 13.5px;
  min-height: 120px;
}

/* ---------- Semantic mosaic ---------- */

.semantic-mosaic.stage-panel {
  display: block;
  width: 100%;
}

.mosaic-grid,
.semantic-mosaic .stage-panel-grid > div:first-child {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}

.mosaic-piece {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  min-height: 100px;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.mosaic-piece b { display: block; color: var(--heading); font-size: 14px; margin-bottom: 6px; }
.mosaic-piece p { font-size: 12.5px; color: var(--body); }

.mosaic-piece.is-selected { border-color: var(--blue); transform: translateY(-2px); }
.mosaic-piece.is-flagged { border-color: var(--coral); background: rgba(255, 97, 63, 0.06); }
.mosaic-piece.is-marked { box-shadow: inset 0 0 0 2px var(--yellow); }

.semantic-mosaic.is-compare .mosaic-piece:nth-child(odd) { border-color: var(--teal); }
.semantic-mosaic.is-compare .mosaic-piece:nth-child(even) { border-color: var(--coral); }

/* ---------- Claim scaffold ---------- */

.claim-scaffold.stage-panel {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: transparent;
}

.scaffold-stack,
.claim-scaffold .stage-panel-grid > div:first-child {
  display: grid;
  gap: var(--space-3);
}

.scaffold-beam {
  position: relative;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--teal);
  background: rgba(0, 191, 166, 0.04);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), opacity 0.2s var(--ease);
}

.scaffold-beam b { color: var(--heading); font-size: 14px; }
.scaffold-beam p { font-size: 13px; color: var(--body); margin-top: 4px; }

.scaffold-beam.is-selected { border-left-color: var(--blue); background: rgba(73, 103, 242, 0.06); }
.scaffold-beam.has-support { border-left-color: var(--ok); }
.scaffold-beam.is-removed { opacity: 0.3; }

.beam-support {
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-family: var(--mono);
  background: rgba(49, 185, 130, 0.1);
  color: var(--ok);
}

/* ---------- Metronome ---------- */

.metronome.stage-panel {
  display: block;
  width: 100%;
}

.metronome-rail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.metro-tick {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  --level: 50%;
  position: relative;
  overflow: hidden;
}

.metro-tick::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: var(--level);
  background: linear-gradient(180deg, transparent, rgba(0, 191, 166, 0.2));
  pointer-events: none;
}

.metro-tick b { display: block; font-size: 13px; color: var(--heading); position: relative; z-index: 1; }

.metro-tick.is-selected { border-color: var(--teal); }
.metro-tick.is-beat { animation: metro-beat 0.35s ease; }

@keyframes metro-beat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.03); border-color: var(--yellow); }
}

.metro-readout {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
  font-family: var(--mono);
  font-size: 12px;
}

.metro-readout span {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
}

.metro-readout b { color: var(--teal); text-transform: capitalize; }

.metronome.is-running .metronome-rail { animation: metro-sway 1.2s ease-in-out infinite; }

@keyframes metro-sway {
  0%, 100% { transform: rotate(-1deg); }
  50% { transform: rotate(1deg); }
}

/* ---------- Storm chamber ---------- */

.storm-chamber.stage-panel {
  display: block;
  width: 100%;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-dark);
  background: var(--card-dark);
  --intensity: 1;
  color: var(--body-dark);
}

.storm-fans,
.storm-chamber .stage-panel-grid > div:first-child {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.storm-chamber .stage-panel-aside {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-dark);
  color: var(--body-dark);
}

.storm-chamber .stage-meta span { color: var(--body-dark); }
.storm-chamber .stage-meta b { color: var(--heading-dark); }

.storm-fan {
  aspect-ratio: 1;
  border-radius: 50%;
  border: 2px solid var(--border-dark);
  background: rgba(255, 255, 255, 0.04);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.storm-fan::before {
  content: "";
  width: 60%;
  height: 60%;
  border-radius: 50%;
  border: 3px dashed rgba(0, 191, 166, 0.35);
  transition: animation-duration 0.3s ease;
}

.storm-fan b { font-size: 12px; color: var(--heading-dark); z-index: 1; }
.storm-fan span { font-size: 11px; color: var(--body-dark); z-index: 1; }

.storm-fan.is-spinning::before {
  animation: fan-spin calc(2s / var(--intensity, 1)) linear infinite;
}

.storm-fan.is-active { border-color: var(--coral); }
.storm-fan.is-selected { box-shadow: 0 0 0 2px var(--teal); }
.storm-fan.is-inspected { border-color: var(--yellow); }

@keyframes fan-spin {
  to { transform: rotate(360deg); }
}

.storm-chamber.is-intense { box-shadow: inset 0 0 40px rgba(255, 97, 63, calc(0.08 * var(--intensity, 1))); }

/* ---------- Release airlock ---------- */

.release-airlock.stage-panel {
  display: block;
  width: 100%;
}

.release-airlock-row,
.release-airlock.stage-panel > .release-airlock {
  display: grid;
  grid-template-columns: 1fr 80px 1fr;
  gap: var(--space-4);
  align-items: stretch;
  min-height: 280px;
}

.airlock-cabin,
.airlock-gate {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 2px solid var(--border);
  background: var(--card);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.airlock-cabin.is-pressurized { border-color: var(--blue); box-shadow: inset 0 0 30px rgba(73, 103, 242, 0.08); }
.airlock-cabin.is-released { border-color: var(--ok); }

.airlock-gate {
  align-items: center;
  justify-content: center;
  text-align: center;
  border-style: dashed;
}

.airlock-gate.is-testing { border-color: var(--yellow); animation: gate-test 0.8s ease infinite; }
.airlock-gate.is-open { border-color: var(--teal); border-style: solid; background: rgba(0, 191, 166, 0.06); }

@keyframes gate-test {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.airlock-seal {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.airlock-seal::before,
.airlock-seal::after {
  content: "";
  width: 3px;
  flex: 1;
  background: linear-gradient(180deg, var(--border), var(--teal), var(--border));
  border-radius: 2px;
}

.airlock-rules {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.airlock-rule {
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.airlock-rule.is-on {
  background: rgba(0, 191, 166, 0.12);
  border-color: var(--teal);
  color: var(--teal);
}

/* ---------- Run abacus ---------- */

.run-abacus {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
}

.abacus-bead {
  text-align: center;
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  --fill: 30%;
  position: relative;
  overflow: hidden;
}

.abacus-bead::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: var(--fill);
  background: rgba(0, 191, 166, 0.15);
}

.abacus-bead b {
  display: block;
  font-size: 12px;
  color: var(--heading);
  position: relative;
  z-index: 1;
}

.abacus-bead span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--body);
  position: relative;
  z-index: 1;
}

.abacus-card {
  margin-top: var(--space-5);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
}

.abacus-card[data-tier="release"] { border-color: rgba(0, 191, 166, 0.4); }

.plan-price {
  font-size: 36px;
  font-weight: 700;
  color: var(--heading);
  letter-spacing: -0.02em;
}

.plan-price span {
  font-size: 14px;
  font-weight: 600;
  color: var(--body);
}

.plan-feats {
  margin-top: var(--space-4);
  display: grid;
  gap: var(--space-2);
}

.plan-feats li {
  font-size: 14px;
  color: var(--body);
  padding-left: 18px;
  position: relative;
}

.plan-feats li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 2px;
  background: var(--teal);
  transform: rotate(-24deg);
}

/* ---------- Hub grid ---------- */

.hub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.hub-card {
  padding: var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.hub-card b { display: block; color: var(--heading); font-size: 15px; }
.hub-card span { display: block; font-size: 13px; color: var(--body); margin-top: 4px; }
.hub-card small { display: block; font-size: 11.5px; color: var(--body); opacity: 0.75; margin-top: 8px; }

.hub-card.is-selected { border-color: var(--teal); transform: translateY(-2px); box-shadow: var(--shadow-card); }

.hub-detail {
  margin-top: var(--space-5);
  padding: var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
}

/* ---------- Forms ---------- */

.form-stack {
  display: grid;
  gap: var(--space-4);
}

.form-field {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--heading);
}

.form-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 6px;
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: #fff;
  color: var(--heading-light);
  font-weight: 500;
}

.form-field textarea { min-height: 120px; resize: vertical; }

.form-msg {
  font-size: 13.5px;
  color: var(--risk);
  margin-top: var(--space-3);
}

.form-msg.is-ok { color: var(--ok); }

.contact-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  align-items: start;
}

.contact-aside {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
}

/* ---------- Auth — centered single panel ---------- */

.auth-body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(720px 360px at 50% -10%, rgba(0, 212, 184, 0.1), transparent 60%),
    var(--slate);
}

.auth-shell {
  min-height: 100vh;
  display: grid;
}

.auth-shell--center {
  grid-template-columns: 1fr;
  place-items: center;
  padding: var(--space-7) var(--space-5);
}

.auth-shell--dual {
  grid-template-columns: 1fr 1fr;
}

.auth-aside {
  background: var(--ink);
  color: var(--body-dark);
  padding: var(--space-8) var(--space-7);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-5);
}

.auth-aside h1 {
  color: var(--heading-dark);
  font-size: clamp(28px, 3vw, 40px);
}

.auth-aside .lead { color: var(--body-dark); max-width: 42ch; }

.auth-panel {
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-5);
}

.auth-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  align-self: center;
  text-decoration: none;
}

.auth-brand .brand-name {
  color: var(--heading-light);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.auth-card {
  width: 100%;
  padding: var(--space-6);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--card-light);
  box-shadow: var(--shadow-card);
}

.auth-card h1 {
  font-size: clamp(22px, 3vw, 28px);
  color: var(--heading-light);
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-2);
  line-height: 1.2;
}

.auth-card .lead {
  font-size: 14.5px;
  margin: 0 0 var(--space-5);
  color: var(--body-light);
  line-height: 1.5;
}

.auth-card .kicker { margin-bottom: var(--space-3); }

.auth-submit {
  width: 100%;
  margin-top: var(--space-2);
}

.auth-logo {
  margin-bottom: var(--space-5);
  display: flex;
  justify-content: center;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: var(--space-5) 0;
  font-size: 13px;
  color: var(--body);
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border-light);
}

.auth-alt {
  margin-top: var(--space-4);
  font-size: 14px;
  color: var(--body-light);
  text-align: center;
}

.auth-foot {
  margin: 0;
  font-size: 12.5px;
  color: var(--body-light);
  text-align: center;
  font-family: var(--mono);
}

/* ---------- Cookie settings ---------- */

.cookie-panel {
  max-width: 640px;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
}

.cookie-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border);
}

.cookie-row:last-child { border-bottom: none; }

.cookie-row b { display: block; color: var(--heading); margin-bottom: 4px; }
.cookie-row p { font-size: 13.5px; color: var(--body); max-width: 48ch; }

/* ---------- Pricing / compare tables ---------- */

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.compare-table th,
.compare-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.compare-table th { color: var(--heading); font-weight: 700; }
.compare-table td { color: var(--body); }

.cta-band {
  padding: var(--space-7) 0;
  background: var(--ink);
  color: var(--body-dark);
  text-align: center;
}

.cta-band h2 { color: var(--heading-dark); margin-bottom: var(--space-3); }
.cta-band .lead { margin: 0 auto var(--space-5); max-width: 52ch; color: var(--body-dark); }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 11.5px;
  font-weight: 700;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status-pill--ok { background: rgba(49, 185, 130, 0.15); color: var(--ok); }
.status-pill--wait { background: rgba(233, 167, 60, 0.15); color: var(--wait); }
.status-pill--risk { background: rgba(235, 79, 105, 0.15); color: var(--risk); }

/* ---------- Responsive ---------- */

@media (max-width: 1100px) {
  .how-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .wind-tunnel .stage-panel-grid > div:first-child,
  .tunnel-zones { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hub-grid { grid-template-columns: repeat(2, 1fr); }
  .stage-panel-grid { grid-template-columns: 1fr; }
  .stage-panel-aside { min-height: 200px; }
  .run-abacus { grid-template-columns: repeat(3, 1fr); }
  .prompt-spool .stage-panel-grid > div:first-child,
  .spool-stack { grid-template-columns: 1fr; }
  .spool-reel { max-width: 140px; margin: 0 auto; }
  .vane-blade-grid,
  .vane-array .stage-panel-grid > div:first-child { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mosaic-grid,
  .semantic-mosaic .stage-panel-grid > div:first-child { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .storm-fans,
  .storm-chamber .stage-panel-grid > div:first-child { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .nav-main { display: none; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .header-signin { display: none; }
  .header-inner { grid-template-columns: 1fr auto; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-split { grid-template-columns: 1fr; }
  .auth-shell { grid-template-columns: 1fr; }
  .auth-aside { padding: var(--space-7) var(--space-6); min-height: auto; }
  .release-airlock-row,
  .release-airlock.stage-panel > .release-airlock { grid-template-columns: 1fr; }
  .airlock-seal { flex-direction: row; height: 40px; }
  .airlock-seal::before,
  .airlock-seal::after { width: auto; height: 3px; flex: 1; }
  .page-stage-head,
  .page-stage-head--split { grid-template-columns: 1fr; }
  .page-stage-actions { justify-content: flex-start; max-width: none; }
  .flight-compare { grid-template-columns: 1fr; }
  .flight-gate-row { grid-template-columns: 1fr; }
  .instrument-rail { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .instrument-strip { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .flight-hero-grid { grid-template-columns: 1fr; }
  .flight-hero {
    background: #061618;
  }
  .flight-log { grid-template-columns: 1fr 1fr; }
  .cta-band--lab { grid-template-columns: 1fr; }
  .cta-band--lab .chamber-actions { justify-content: flex-start; }
  .chamber-mast,
  .page-stage-head { grid-template-columns: 1fr; }
  .flight-brand .brand-headline { white-space: normal; }
  .pain-strip { grid-template-columns: 1fr; }
}

/* ---------- Shared page utilities ---------- */

.keyword-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  list-style: none;
  margin: 0 0 var(--space-5);
  padding: 0;
}

.keyword-chip,
.keyword-strip li {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid rgba(0, 191, 166, 0.35);
  color: var(--teal);
  background: rgba(0, 191, 166, 0.08);
}

.section--ink .keyword-chip,
.section--ink .keyword-strip li {
  border-color: rgba(245, 255, 252, 0.2);
  color: var(--heading-dark);
  background: rgba(245, 255, 252, 0.06);
}

.gust-ledger,
.pain-ledger {
  display: grid;
  gap: var(--space-3);
}

.ledger-row,
.ledger-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
  align-items: start;
}

.section--ink .ledger-row,
.section--ink .ledger-item {
  border-color: var(--border-dark);
  background: rgba(255, 255, 255, 0.04);
}

.ledger-row h3,
.ledger-item h3 {
  font-size: 16px;
  color: var(--heading);
  margin-bottom: 6px;
}

.ledger-row p,
.ledger-item p { font-size: 14px; color: var(--body); }

.inspect-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  align-items: start;
}

.inspect-preview,
.intake-preview {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card);
  min-height: 320px;
}

.inspect-preview.is-idle { border-style: dashed; border-color: rgba(0, 191, 166, 0.35); }

.stage-panel {
  width: 100%;
}

.stage-aside,
.stage-panel-aside .stage-meta,
.stage-panel-aside ul.stage-meta {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.stage-meta li,
.stage-panel-aside .stage-meta li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: var(--space-2);
  font-size: 13px;
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(99, 104, 108, 0.12);
}

.stage-meta span { color: var(--body); }
.stage-meta b { color: var(--heading); font-weight: 600; }
.stage-meta b.is-ok { color: var(--ok); }
.stage-meta b.is-warn { color: var(--wait); }

.tag {
  display: inline-flex;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tag--ok { background: rgba(49, 185, 130, 0.15); color: var(--ok); }
.tag--warn { background: rgba(233, 167, 60, 0.15); color: var(--wait); }
.tag--risk { background: rgba(235, 79, 105, 0.15); color: var(--risk); }

.qa-hub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.typeset-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
.typeset-tile {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-dark);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
}
.typeset-tile b { display: block; color: var(--heading-dark); font-size: 14px; margin-bottom: 6px; }
.typeset-tile p { font-size: 12.5px; color: var(--body-dark); margin: 0; }
.typeset-tile.is-selected { border-color: var(--teal); transform: translateY(-2px); }
.vane-blade .vane-meta {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--teal);
  margin: 4px 0 6px;
}

.qa-hub-card {
  padding: var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.qa-hub-card:hover {
  border-color: var(--teal);
  transform: translateY(-2px);
}

.qa-hub-card b { display: block; color: var(--heading); font-size: 15px; margin-bottom: 6px; }
.qa-hub-card p { font-size: 13.5px; color: var(--body); }

.usage-factors {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.usage-factors label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--heading);
}

.usage-factors input {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--card-light);
}

.code-block,
.api-block pre,
.cli-block pre {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-dark);
  background: rgba(0, 0, 0, 0.25);
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--heading-dark);
}

.integ-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.integ-cell {
  padding: var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
}

.integ-cell b { display: block; color: var(--heading); margin-bottom: 6px; }
.integ-cell p { font-size: 14px; color: var(--body); }

.help-list,
.about-list,
.security-list,
.status-list {
  display: grid;
  gap: var(--space-3);
}

.help-list a {
  display: block;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-weight: 600;
  color: var(--heading);
}

.help-list a:hover { border-color: var(--teal); color: var(--teal); }

.status-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 14px;
}

.status-list li.is-ok b { color: var(--ok); }

.changelog article,
.change-item {
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border);
}

.changelog h3,
.change-item h3 { font-size: 17px; margin: var(--space-2) 0; color: var(--heading); }

.legal-prose p { font-size: 15px; line-height: 1.65; color: var(--body); margin-bottom: var(--space-4); }

.cta-band--wide { text-align: center; max-width: 820px; margin: 0 auto; }

.cta-band--wide .page-stage-actions,
.cta-band--wide .chamber-actions { justify-content: center; max-width: none; }

.cta-band--lab {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) auto;
  gap: var(--space-6);
  align-items: end;
  padding: var(--space-6) 0;
  border-top: 1px solid rgba(232, 255, 248, 0.1);
}

.cta-band--lab h2 {
  margin-top: var(--space-2);
  font-size: clamp(24px, 3vw, 36px);
  color: var(--heading-dark);
  letter-spacing: -0.03em;
  max-width: 18ch;
}

.cta-band--lab .lead {
  margin-top: var(--space-3);
  max-width: 54ch;
  color: var(--body-dark);
}

.cta-band--lab .chamber-actions {
  justify-content: flex-end;
}

@media (max-width: 600px) {
  .container { padding: 0 var(--space-4); }
  .how-grid,
  .feature-grid,
  .hub-grid,
  .vane-blade-grid,
  .vane-array .stage-panel-grid > div:first-child,
  .mosaic-grid,
  .semantic-mosaic .stage-panel-grid > div:first-child,
  .metronome-rail,
  .wind-tunnel .stage-panel-grid > div:first-child,
  .tunnel-zones,
  .run-abacus,
  .storm-fans,
  .storm-chamber .stage-panel-grid > div:first-child { grid-template-columns: 1fr; }
  .flight-toolbar-actions { margin-left: 0; width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bar-inner { flex-direction: column; align-items: flex-start; }
}