/* IS Frontières — landing page styles */

:root {
  /* Palette: forest (default) */
  --bg: #f6f7f3;
  --bg-2: #eef1ea;
  --paper: #ffffff;
  --ink: #11181a;
  --ink-2: #2a3633;
  --muted: #5b6a64;
  --muted-2: #8a9690;
  --line: #e4e8e0;
  --line-2: #d3ddd4;
  --accent: #007c67;
  --accent-2: #005d4c;
  --accent-soft: #e4f4ef;
  --cyan: #1787a6;
  --violet: #6554c0;
  --red: #c8463a;
  --yellow: #e4b63d;

  --radius: 8px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 2px rgba(20,30,28,.04);
  --shadow: 0 18px 40px -18px rgba(20,30,28,.18), 0 2px 6px rgba(20,30,28,.04);
  --shadow-lg: 0 30px 80px -30px rgba(20,30,28,.28);

  --serif: "Instrument Serif", "Cormorant Garamond", "Times New Roman", Georgia, serif;
  --sans: "Inter Tight", "Aptos", "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --gutter: clamp(20px, 4vw, 56px);
  --section-y: clamp(72px, 9vw, 140px);

  --density: 1;
}

/* Palette: ink (dark, editorial) */
[data-palette="ink"] {
  --bg: #0e1411;
  --bg-2: #131a17;
  --paper: #181f1c;
  --ink: #f4f5ee;
  --ink-2: #d8dcd0;
  --muted: #8a9690;
  --muted-2: #6a766f;
  --line: #1f2724;
  --line-2: #2a322e;
  --accent: #6dd6b8;
  --accent-2: #8ee0c7;
  --accent-soft: #1a2522;
  --cyan: #6cc6dd;
  --violet: #a89cf0;
  --red: #e6786d;
  --yellow: #ebc873;
}

/* Palette: bercy (saturated red/blue institutional) */
[data-palette="bercy"] {
  --bg: #f5f3ee;
  --bg-2: #ece8de;
  --paper: #ffffff;
  --ink: #0d1a2b;
  --ink-2: #233246;
  --muted: #5a6878;
  --muted-2: #8a96a4;
  --line: #e1dccf;
  --line-2: #cfc8b6;
  --accent: #1a2c5b;
  --accent-2: #0d1a2b;
  --accent-soft: #e8ecf5;
  --cyan: #2466a0;
  --violet: #7b3a96;
  --red: #b8362c;
  --yellow: #d8a83a;
}

/* Density */
[data-density="compact"] {
  --section-y: clamp(48px, 6vw, 96px);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }

::selection { background: var(--accent); color: var(--paper); }

/* Layout */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.container-wide {
  width: 100%;
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section { padding: var(--section-y) 0; }

/* Type */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: .6;
}
.eyebrow.no-rule::before { display: none; }

.display {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(46px, 7.4vw, 112px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0;
  text-wrap: balance;
}
.display em {
  font-style: italic;
  color: var(--accent);
}

h1, h2, h3, h4 { margin: 0; font-weight: 500; letter-spacing: -0.01em; }

h2.section-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(34px, 4.6vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
h2.section-title em { font-style: italic; color: var(--accent); }

.lede {
  font-size: clamp(17px, 1.45vw, 21px);
  line-height: 1.45;
  color: var(--muted);
  max-width: 56ch;
  text-wrap: pretty;
}

p { margin: 0; }

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  padding: 0 22px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: var(--ink);
  color: var(--bg);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.005em;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); background: var(--accent-2); color: var(--paper); }
.btn-primary {
  background: var(--accent);
  color: var(--paper);
}
.btn-primary:hover { background: var(--accent-2); }
.btn-ghost {
  background: transparent;
  border-color: var(--line-2);
  color: var(--ink);
}
.btn-ghost:hover { background: var(--bg-2); border-color: var(--ink); color: var(--ink); }
.btn .arrow {
  width: 18px;
  height: 18px;
  display: inline-grid;
  place-items: center;
  transition: transform .2s ease;
}
.btn:hover .arrow { transform: translateX(3px); }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0;
}
.brand em {
  font-style: italic;
  color: var(--accent);
}
.nav-links {
  display: flex;
  gap: 28px;
  font-size: 14px;
  color: var(--muted);
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  display: flex;
  gap: 10px;
  align-items: center;
}
.nav-cta .btn {
  height: 40px;
  font-size: 14px;
  padding: 0 16px;
}

@media (max-width: 880px) {
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .nav-inner { gap: 12px; }
  .brand {
    gap: 8px;
    font-size: 20px;
    flex: 0 0 auto;
  }
  .brand-mark {
    width: 26px;
    height: 26px;
  }
  .nav-cta .btn-ghost { display: none; }
  .nav-cta .btn-primary {
    height: 40px;
    padding: 0 14px;
    white-space: nowrap;
  }
}

/* Hero */
.hero {
  padding: clamp(48px, 8vw, 110px) 0 clamp(60px, 8vw, 120px);
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: clamp(36px, 5vw, 72px);
  align-items: center;
}
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.hero-meta {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-sub {
  margin-top: 28px;
  font-size: clamp(17px, 1.4vw, 21px);
  line-height: 1.5;
  color: var(--muted);
  max-width: 52ch;
}

.hero-cta {
  margin-top: 40px;
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.hero-stats {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.hero-stat .num {
  font-family: var(--serif);
  font-size: clamp(28px, 2.8vw, 40px);
  line-height: 1;
  letter-spacing: -0.02em;
}
.hero-stat .lbl {
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
  font-family: var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
@media (max-width: 720px) {
  .hero-stats { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
}

/* Mini simulator card */
.sim-card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-lg);
}
.sim-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 18%, transparent), transparent 38%);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  padding: 1px;
}
.sim-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}
.sim-head h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
}
.sim-tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  border-radius: 8px;
  padding: 4px 10px;
}
.sim-fields {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}
.sim-field {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px;
  align-items: end;
}
.sim-field label {
  grid-column: 1 / -1;
  font-size: 12px;
  color: var(--muted);
  font-family: var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.sim-field .input-row {
  grid-column: 1 / -1;
  display: flex;
  align-items: baseline;
  gap: 8px;
  border-bottom: 1px solid var(--line-2);
  padding: 8px 2px 10px;
  transition: border-color .15s ease;
}
.sim-field .input-row:focus-within { border-color: var(--accent); }
.sim-field input {
  flex: 1;
  border: 0;
  background: transparent;
  outline: none;
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 400;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  width: 100%;
  min-width: 0;
}
.sim-field .unit {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--muted);
}
.sim-field .slider {
  grid-column: 1 / -1;
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--line);
  border-radius: 999px;
  outline: none;
  margin-top: 2px;
}
.sim-field .slider::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--paper);
  box-shadow: 0 0 0 1px var(--accent);
  cursor: pointer;
  transition: transform .15s ease;
}
.sim-field .slider::-webkit-slider-thumb:hover { transform: scale(1.15); }
.sim-field .slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--paper);
  box-shadow: 0 0 0 1px var(--accent);
  cursor: pointer;
}

.sim-toggles {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.sim-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  background: var(--bg);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 12px;
  font-family: var(--mono);
  letter-spacing: .04em;
  cursor: pointer;
  transition: all .15s ease;
  color: var(--muted);
}
.sim-toggle.on {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 30%, transparent);
  color: var(--accent);
}
.sim-toggle:hover { border-color: var(--accent); }

.sim-result {
  background: var(--bg);
  border-radius: 14px;
  padding: 20px;
  display: grid;
  gap: 12px;
}
.sim-result-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 8px;
}
.sim-result-row .lbl {
  font-size: 12px;
  color: var(--muted);
  font-family: var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.sim-result-row .val {
  font-family: var(--serif);
  font-variant-numeric: tabular-nums;
  font-size: 22px;
  letter-spacing: -0.01em;
}
.sim-result-row.total {
  padding-top: 12px;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.sim-result-row.total .lbl { color: var(--ink); font-weight: 600; }
.sim-result-row.total .val {
  font-size: clamp(36px, 3.4vw, 48px);
  color: var(--accent);
}
.sim-bar {
  height: 6px;
  background: var(--line);
  border-radius: 999px;
  overflow: hidden;
  display: flex;
}
.sim-bar > span { display: block; height: 100%; transition: width .35s cubic-bezier(.5,.0,.2,1); }

.sim-hint {
  margin-top: 14px;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.sim-hint .pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  position: relative;
}
.sim-hint .pulse::after {
  content: ""; position: absolute; inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: .35;
  animation: pulse 1.6s ease-out infinite;
}
@keyframes pulse {
  0% { transform: scale(.8); opacity: .5; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* Bento / sections */
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: end;
  margin-bottom: clamp(40px, 6vw, 80px);
}
.section-head .lede { margin-top: 18px; }
@media (max-width: 880px) {
  .section-head { grid-template-columns: 1fr; align-items: start; }
}

/* Frontier list */
.frontier-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 12px;
}
.frontier-card {
  grid-column: span 4;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  display: grid;
  gap: 14px;
  align-content: start;
  position: relative;
  overflow: hidden;
  transition: border-color .15s ease, transform .15s ease;
}
.frontier-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}
.frontier-card.span-6 { grid-column: span 6; }
.frontier-card.span-8 { grid-column: span 8; }
.frontier-card.span-12 { grid-column: span 12; }
.frontier-card.feature {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.frontier-card.feature .fc-eyebrow { color: var(--accent); }
.frontier-card.feature .fc-meta { color: color-mix(in srgb, var(--bg) 60%, transparent); }

.fc-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.fc-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.05;
  letter-spacing: -0.01em;
}
.fc-threshold {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--ink-2);
  background: var(--bg-2);
  display: inline-block;
  padding: 5px 10px;
  border-radius: 6px;
  width: fit-content;
}
.frontier-card.feature .fc-threshold {
  background: color-mix(in srgb, var(--bg) 12%, transparent);
  color: var(--bg);
}
.fc-effect {
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
}
.frontier-card.feature .fc-effect { color: color-mix(in srgb, var(--bg) 78%, transparent); }
.fc-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .04em;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}
.frontier-card.feature .fc-meta { border-top-color: color-mix(in srgb, var(--bg) 18%, transparent); }

@media (max-width: 980px) {
  .frontier-card, .frontier-card.span-6, .frontier-card.span-8 { grid-column: span 6; }
}
@media (max-width: 640px) {
  .frontier-card, .frontier-card.span-6, .frontier-card.span-8, .frontier-card.span-12 { grid-column: span 12; }
}

/* Map section */
.map-section {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.map-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 36px;
  align-items: stretch;
}
@media (max-width: 980px) {
  .map-wrap { grid-template-columns: 1fr; }
}
.map-canvas-shell {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(18px, 3.8vw, 48px);
  min-height: clamp(420px, 54vw, 660px);
  overflow: hidden;
}
#mapCanvas {
  width: 100%;
  height: clamp(360px, 46vw, 560px);
  display: block;
  border-radius: 8px;
  cursor: crosshair;
}
.map-info {
  display: grid;
  gap: 16px;
}
.map-info .info-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.map-info h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
  margin-bottom: 8px;
}
.legend-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  font-family: var(--mono);
  margin-top: 8px;
}
.legend-sw {
  width: 14px;
  height: 14px;
  border-radius: 4px;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.step {
  padding: clamp(28px, 4vw, 48px) clamp(20px, 3vw, 40px);
  border-right: 1px solid var(--line);
  display: grid;
  gap: 16px;
  align-content: start;
}
.step:last-child { border-right: 0; }
.step-num {
  font-family: var(--serif);
  font-size: 56px;
  line-height: 1;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.step h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 26px;
  letter-spacing: -0.01em;
}
.step p { color: var(--muted); font-size: 15px; line-height: 1.55; }
@media (max-width: 880px) {
  .steps { grid-template-columns: 1fr; }
  .step { border-right: 0; border-bottom: 1px solid var(--line); }
  .step:last-child { border-bottom: 0; }
}

/* Use cases */
.cases {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 16px;
}
.case {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: grid;
  gap: 16px;
  align-content: start;
  min-height: 320px;
  transition: transform .2s ease, border-color .2s ease;
  position: relative;
  overflow: hidden;
}
.case:hover { transform: translateY(-3px); border-color: var(--ink); }
.case .case-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
}
.case h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 28px;
  letter-spacing: -0.01em;
}
.case ul {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  display: grid;
  gap: 8px;
}
.case li {
  padding-left: 18px;
  position: relative;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
}
.case li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 1px;
  background: var(--accent);
}
.case .case-stat {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--serif);
  font-size: 32px;
  letter-spacing: -0.02em;
}
.case .case-stat span {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-top: 6px;
  font-weight: normal;
}
@media (max-width: 880px) {
  .cases { grid-template-columns: 1fr; }
}

/* Sources */
.sources-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
}
.source-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: grid;
  gap: 8px;
  text-decoration: none;
  color: inherit;
  transition: border-color .15s ease, background .15s ease;
}
.source-card:hover { border-color: var(--ink); background: var(--bg); }
.source-card .src-id {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
}
.source-card .src-name {
  font-family: var(--serif);
  font-size: 17px;
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.source-card .src-use {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.45;
}
.source-card .src-foot {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
}
@media (max-width: 880px) { .sources-grid { grid-template-columns: 1fr; } }

/* FAQ */
.faq {
  border-top: 1px solid var(--line);
}
.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 24px 0;
  cursor: pointer;
}
.faq-item .q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  font-family: var(--serif);
  font-size: clamp(20px, 1.8vw, 26px);
  letter-spacing: -0.01em;
  font-weight: 400;
}
.faq-item .q-toggle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: transform .2s ease, background .2s ease;
}
.faq-item[open] .q-toggle { transform: rotate(45deg); background: var(--accent); color: var(--paper); border-color: var(--accent); }
.faq-item .a {
  margin-top: 14px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
  max-width: 70ch;
}

/* CTA */
.cta-block {
  background: var(--ink);
  color: var(--bg);
  border-radius: var(--radius-lg);
  padding: clamp(48px, 6vw, 96px) clamp(28px, 4vw, 64px);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 36px;
  align-items: end;
  position: relative;
  overflow: hidden;
}
.cta-block .display { color: var(--bg); }
.cta-block .display em { color: var(--accent); }
.cta-block .lede { color: color-mix(in srgb, var(--bg) 62%, transparent); }
.cta-block .btn-primary { background: var(--accent); color: var(--paper); }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; justify-content: flex-end; }
.cta-block .btn-ghost {
  background: transparent;
  border-color: color-mix(in srgb, var(--bg) 22%, transparent);
  color: var(--bg);
}
.cta-block .btn-ghost:hover { background: color-mix(in srgb, var(--bg) 8%, transparent); border-color: var(--bg); }

@media (max-width: 880px) {
  .cta-block { grid-template-columns: 1fr; }
  .cta-actions { justify-content: flex-start; }
}

/* Footer */
.footer {
  padding: 64px 0 40px;
  border-top: 1px solid var(--line);
  margin-top: var(--section-y);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}
.footer-col h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
  font-weight: 500;
}
.footer-col a {
  display: block;
  color: var(--ink-2);
  font-size: 14px;
  padding: 4px 0;
}
.footer-col a:hover { color: var(--accent); }
.footer-col p { font-size: 14px; color: var(--muted); max-width: 36ch; }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .06em;
  text-transform: uppercase;
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; }
}

/* Marquee of frontiers */
.marquee {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  padding: 22px 0;
  overflow: hidden;
  position: relative;
}
.marquee::before, .marquee::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  width: 80px;
  pointer-events: none;
  z-index: 2;
}
.marquee::before {
  left: 0;
  background: linear-gradient(90deg, var(--paper), transparent);
}
.marquee::after {
  right: 0;
  background: linear-gradient(-90deg, var(--paper), transparent);
}
.marquee-track {
  display: flex;
  gap: 56px;
  width: max-content;
  animation: scroll 60s linear infinite;
  font-family: var(--serif);
  font-size: clamp(18px, 1.8vw, 24px);
  letter-spacing: -0.01em;
  color: var(--ink);
}
.marquee-track span {
  display: inline-flex; align-items: center; gap: 14px;
}
.marquee-track .sep {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}
@keyframes scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Hero map background */
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .55;
  z-index: 0;
}
.hero-grid { position: relative; z-index: 1; }

/* Reveal animation */
.reveal,
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Tweaks panel scoping (in case of conflicts) */
.tweaks-panel { font-family: var(--sans); }