/* ============================================================
   CorbiT — MarginX site
   ============================================================ */

:root {
  --ink: #000000;
  --ink-800: #0D0D0D;
  --ink-700: #1A1A1A;
  --paper: #FFFFFF;
  --paper-2: #F0F0F0;
  --text-on-paper: #000000;
  --text-muted-on-paper: #555555;
  --text-on-ink: #FFFFFF;
  --text-muted-on-ink: #999999;
  --orange: #F2661E;
  --orange-strong: #FF7E38;
  --orange-ink: #B34A11;
  --line-on-paper: rgba(0, 0, 0, 0.14);
  --line-on-paper-soft: rgba(0, 0, 0, 0.08);
  --line-on-ink: rgba(255, 255, 255, 0.16);
  --line-on-ink-soft: rgba(255, 255, 255, 0.09);

  --font-display: Arial, Helvetica, sans-serif;
  --font-body: Arial, Helvetica, sans-serif;
  --font-mono: Arial, Helvetica, sans-serif;

  --fs-h1: clamp(2.6rem, 3.2vw + 1.6rem, 5.25rem);
  --fs-h2: clamp(1.9rem, 1.6vw + 1.4rem, 3rem);
  --fs-h3: clamp(1.25rem, 0.5vw + 1.1rem, 1.6rem);
  --fs-lead: clamp(1.05rem, 0.4vw + 0.95rem, 1.3rem);
  --fs-body: 1.0625rem;
  --fs-small: 0.875rem;
  --fs-eyebrow: 0.75rem;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --space-8: 8rem;

  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 22px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 180ms;
  --dur-med: 420ms;
  --dur-slow: 900ms;

  --container: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

html, body { max-width: 100%; overflow-x: hidden; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--text-on-paper);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}
@media (min-width: 720px) {
  .container { padding-inline: var(--space-5); }
}

section { position: relative; }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -60px;
  background: var(--orange);
  color: var(--ink);
  font-weight: 700;
  padding: 0.75em 1.25em;
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus {
  top: var(--space-2);
}

/* ---------- Focus states ---------- */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2.5px solid var(--orange);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- Eyebrow / labels ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange-strong);
  font-weight: 500;
}
.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  flex: none;
}
.section--light .eyebrow { color: var(--orange-ink); }
.section--light .eyebrow::before { background: var(--orange); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.95em 1.6em;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}
.btn svg { width: 1.05em; height: 1.05em; }
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--orange);
  color: var(--ink);
}
.btn--primary:hover { background: var(--orange-strong); }

.btn--ghost-dark {
  border-color: var(--line-on-ink);
  color: var(--text-on-ink);
}
.btn--ghost-dark:hover { border-color: var(--orange); color: var(--orange-strong); }

.btn--ghost-light {
  border-color: var(--line-on-paper);
  color: var(--text-on-paper);
}
.btn--ghost-light:hover { border-color: var(--orange); color: var(--orange-ink); }

.btn--sm { padding: 0.7em 1.3em; font-size: 0.875rem; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 500;
  padding-block: var(--space-3);
  transition: padding var(--dur-med) var(--ease-out),
              background var(--dur-med) var(--ease-out),
              border-color var(--dur-med) var(--ease-out);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  padding-block: var(--space-1);
  background: rgba(16, 17, 20, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line-on-ink);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65em;
  color: var(--text-on-ink);
}
.brand-mark { width: 46px; height: 46px; flex: none; }
.brand-word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.55rem;
  letter-spacing: -0.01em;
  display: inline-block;
  padding-bottom: 0.12em;
  border-bottom: 3px solid var(--orange);
  line-height: 1.15;
}

.nav-primary {
  display: none;
  align-items: center;
  gap: var(--space-4);
}
.nav-primary a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted-on-ink);
  transition: color var(--dur-fast) var(--ease-out);
  position: relative;
  padding-block: 0.3em;
}
.nav-primary a:hover { color: var(--text-on-ink); }
.nav-primary a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--orange);
  transition: right var(--dur-med) var(--ease-out);
}
.nav-primary a:hover::after { right: 0; }

.header-actions { display: flex; align-items: center; gap: var(--space-2); }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  background: transparent;
  border: 1.5px solid var(--line-on-ink);
  border-radius: var(--radius-sm);
  color: var(--text-on-ink);
  cursor: pointer;
}
.nav-toggle svg { width: 22px; height: 22px; flex-shrink: 0; }
@media (min-width: 960px) {
  .nav-primary { display: flex; }
  .nav-toggle { display: none; }
}

.mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--ink);
  z-index: 600;
  display: flex;
  flex-direction: column;
  padding: var(--space-3);
  transform: translateY(-100%);
  transition: transform var(--dur-med) var(--ease-out);
  overflow-y: auto;
}
.mobile-nav.is-open { transform: translateY(0); }
.mobile-nav-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-6); }
.mobile-nav-links { display: flex; flex-direction: column; gap: var(--space-3); }
.mobile-nav-links a {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text-on-ink);
}
.mobile-nav-links a span {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--orange-strong);
  margin-right: 0.6em;
}
.mobile-nav-foot { margin-top: auto; padding-top: var(--space-4); border-top: 1px solid var(--line-on-ink); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  background: var(--ink);
  color: var(--text-on-ink);
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--space-8);
  padding-bottom: var(--space-6);
  overflow: hidden;
  isolation: isolate;
}

.hero-ring-field {
  position: absolute;
  inset: 0;
  z-index: -1;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.hero-ring-field svg {
  width: min(1100px, 150vw);
  height: auto;
  opacity: 0.9;
}
.gantry-ring { transform-origin: 400px 400px; animation: spin 40s linear infinite; }
.gantry-ring--rev { transform-origin: 400px 400px; animation: spin-rev 60s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes spin-rev { to { transform: rotate(-360deg); } }

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(60% 55% at 50% 42%, rgba(16,17,20,0) 0%, var(--ink) 78%);
}

.hero-inner {
  max-width: 780px;
}
.hero-inner .eyebrow { margin-bottom: var(--space-3); color: var(--orange-strong); }
.hero h1 {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-3);
}
.hero h1 .accent { color: var(--orange); }
.hero-lead {
  font-size: var(--fs-lead);
  color: var(--text-muted-on-ink);
  max-width: 56ch;
  margin-bottom: var(--space-4);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-6); }

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--line-on-ink);
}
.hero-badge { display: flex; align-items: center; gap: 0.6em; }
.hero-badge svg { width: 20px; height: 20px; color: var(--orange-strong); flex: none; }
.hero-badge span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--text-muted-on-ink);
}

.scroll-cue {
  position: absolute;
  bottom: var(--space-3);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5em;
  color: var(--text-muted-on-ink);
}
.scroll-cue .line { width: 1px; height: 34px; background: linear-gradient(var(--orange), transparent); animation: pulse-down 2.2s ease-in-out infinite; }
@keyframes pulse-down { 0%,100% { opacity: 0.3; } 50% { opacity: 1; } }

/* ---------- Hero: orbiting 3D specimen visual ---------- */
.specimen-orbit {
  position: relative;
  width: min(320px, 65vw);
  height: min(320px, 65vw);
  margin: 0 auto var(--space-4);
  z-index: 0;
  pointer-events: none;
}
@media (min-width: 640px) {
  .specimen-orbit { width: min(420px, 55vw); height: min(420px, 55vw); }
}
.specimen-orbit-core {
  position: absolute;
  inset: 23%;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, #FF9552, var(--orange) 55%, #7A2E0A 100%);
  opacity: 0.42;
  box-shadow: 0 0 90px 14px rgba(242, 102, 30, 0.28);
}
.specimen-orbit-scene {
  position: absolute;
  inset: 0;
  perspective: 1400px;
}
.specimen-orbit-inner {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  animation: specimen-spin 20s linear infinite;
}
.orbit-plane {
  position: absolute;
  inset: 9%;
  border-radius: 50%;
}
.orbit-plane--axial {
  background: rgba(255, 126, 56, 0.07);
  border: 1px solid rgba(255, 126, 56, 0.55);
  transform: rotateX(82deg);
}
.orbit-plane--sagittal {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.45);
  transform: rotateY(82deg);
}
.orbit-plane--oblique {
  background: rgba(255, 149, 82, 0.06);
  border: 1px solid rgba(255, 149, 82, 0.4);
  border-style: dashed;
  transform: rotateX(40deg) rotateY(52deg);
}
.orbit-marker {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  background: #FFFFFF;
  box-shadow: 0 0 12px 4px rgba(255, 255, 255, 0.85), 0 0 22px 8px rgba(242, 102, 30, 0.7);
}
.orbit-marker--sm { width: 6px; height: 6px; margin: -3px 0 0 -3px; }
@keyframes specimen-spin {
  from { transform: rotateY(0deg) rotateX(10deg); }
  to { transform: rotateY(360deg) rotateX(10deg); }
}
.specimen-orbit-scanline {
  position: absolute;
  top: 4%;
  bottom: 4%;
  width: 4px;
  background: linear-gradient(180deg, transparent, #FFFFFF, transparent);
  box-shadow: 0 0 14px 3px rgba(255, 126, 56, 0.6);
  filter: blur(0.3px);
  animation: specimen-scan 3.4s ease-in-out infinite;
}
@keyframes specimen-scan {
  0% { left: 10%; opacity: 0; }
  12% { opacity: 0.9; }
  50% { left: 88%; opacity: 0.9; }
  62% { opacity: 0; }
  100% { left: 88%; opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .specimen-orbit-inner { animation: none; transform: rotateY(30deg) rotateX(10deg); }
  .specimen-orbit-scanline { animation: none; opacity: 0; }
}

/* ============================================================
   Ticker
   ============================================================ */
.ticker {
  background: var(--orange);
  color: var(--ink);
  overflow: hidden;
  padding-block: 0.85em;
  border-block: 2px solid var(--ink);
}
.ticker-track {
  display: flex;
  width: max-content;
  animation: ticker 32s linear infinite;
}
.ticker:hover .ticker-track,
.ticker:focus-within .ticker-track { animation-play-state: paused; }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.ticker-item {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-inline: var(--space-3);
  white-space: nowrap;
}
.ticker-item::after { content: "✦"; margin-left: var(--space-3); opacity: 0.6; }

@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; flex-wrap: wrap; width: 100%; justify-content: center; }
  .gantry-ring, .gantry-ring--rev { animation: none; }
}

/* ============================================================
   Section scaffolding
   ============================================================ */
.section { padding-block: var(--space-7); }
.section--dark { background: var(--ink); color: var(--text-on-ink); }
.section--light { background: var(--paper); color: var(--text-on-paper); }
.section--alt { background: var(--paper-2); color: var(--text-on-paper); }

.section-head {
  max-width: 680px;
  margin-bottom: var(--space-6);
}
.section-head .eyebrow { margin-bottom: var(--space-2); }
.section-head h2 { font-size: var(--fs-h2); margin-bottom: var(--space-2); }
.section-head p { font-size: var(--fs-lead); color: var(--text-muted-on-ink); }
.section--light .section-head p,
.section--alt .section-head p { color: var(--text-muted-on-paper); }

.section-head--center { margin-inline: auto; text-align: center; }

/* reveal-on-scroll */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
[data-reveal-delay="1"] { transition-delay: 90ms; }
[data-reveal-delay="2"] { transition-delay: 180ms; }
[data-reveal-delay="3"] { transition-delay: 270ms; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   Problem / timelines
   ============================================================ */
.timelines { display: grid; gap: var(--space-4); }
@media (min-width: 860px) {
  .timelines { grid-template-columns: 1fr 1fr; gap: var(--space-5); }
}
.timeline-card {
  background: var(--paper);
  border: 1px solid var(--line-on-paper);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}
.timeline-card--corbit {
  background: var(--ink);
  color: var(--text-on-ink);
  border-color: var(--ink);
  position: relative;
  overflow: hidden;
}
.timeline-card--corbit::before {
  content: "";
  position: absolute;
  top: -60px; right: -60px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242,102,30,0.35), transparent 70%);
}
.timeline-card h3 {
  font-size: 1.05rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: 0.6em;
}
.timeline-card--legacy h3 { color: var(--text-muted-on-paper); }
.timeline-card--corbit h3 { color: var(--orange-strong); }

.timeline-steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.timeline-steps li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: var(--space-2);
  padding-block: var(--space-2);
  position: relative;
}
.timeline-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 1.15rem;
  top: 2.6rem;
  bottom: -0.4rem;
  width: 1px;
  background: var(--line-on-paper);
}
.timeline-card--corbit .timeline-steps li:not(:last-child)::after { background: var(--line-on-ink); }
.step-num {
  width: 2.4rem; height: 2.4rem;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  border: 1.5px solid var(--line-on-paper);
  color: var(--text-muted-on-paper);
  flex: none;
}
.timeline-card--corbit .step-num { border-color: var(--orange); color: var(--orange-strong); }
.timeline-steps .is-flagged .step-num { background: var(--orange-ink); border-color: var(--orange-ink); color: #fff; }
.timeline-card--corbit .timeline-steps .is-flagged .step-num { background: var(--orange); border-color: var(--orange); color: var(--ink); }
.step-title { font-weight: 600; margin-bottom: 0.15em; }
.step-body { font-size: 0.92rem; color: var(--text-muted-on-paper); }
.timeline-card--corbit .step-body { color: var(--text-muted-on-ink); }

.stat-callout {
  margin-top: var(--space-5);
  display: grid;
  gap: var(--space-3);
  grid-template-columns: auto 1fr;
  align-items: center;
  background: var(--paper-2);
  border: 1px solid var(--line-on-paper);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}
.stat-callout .stat-num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--orange-ink);
  font-weight: 700;
  line-height: 1;
}
.stat-callout .stat-text { font-size: 0.92rem; color: var(--text-muted-on-paper); }
.stat-callout .stat-text small { display: block; margin-top: 0.4em; opacity: 0.75; font-size: 0.8rem; }

/* ============================================================
   Compare cards
   ============================================================ */
.compare-grid {
  margin-top: var(--space-5);
  display: grid;
  gap: var(--space-3);
}
@media (min-width: 780px) {
  .compare-grid { grid-template-columns: repeat(3, 1fr); }
}
.compare-card {
  border: 1px solid var(--line-on-paper);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  background: var(--paper);
}
.compare-card--hero {
  background: var(--ink);
  color: var(--text-on-ink);
  border-color: var(--ink);
  position: relative;
}
.compare-card h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted-on-paper);
  margin-bottom: var(--space-2);
}
.compare-card--hero h4 { color: var(--orange-strong); }
.compare-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6em; }
.compare-card li {
  font-size: 0.9rem;
  display: flex;
  gap: 0.6em;
  align-items: flex-start;
}
.compare-card li svg { width: 16px; height: 16px; flex: none; margin-top: 0.2em; color: var(--orange-ink); }
.compare-card--hero li svg { color: var(--orange-strong); }

/* ============================================================
   Stats strip
   ============================================================ */
.stats-strip {
  margin-top: var(--space-6);
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .stats-strip { grid-template-columns: repeat(3, 1fr); } }
.stat-block {
  border: 1px solid var(--line-on-ink);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  text-align: center;
}
.stat-block .stat-flow {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  margin-bottom: var(--space-1);
}
.stat-block .stat-flow .from { color: var(--text-muted-on-ink); font-weight: 500; font-size: 0.7em; }
.stat-block .stat-flow .to { color: var(--orange-strong); }
.stat-block .stat-flow svg { width: 0.6em; height: 0.6em; color: var(--text-muted-on-ink); }
.stat-block p { font-size: 0.88rem; color: var(--text-muted-on-ink); }
.stats-note {
  margin-top: var(--space-3);
  font-size: 0.78rem;
  color: var(--text-muted-on-ink);
  text-align: center;
  opacity: 0.8;
}
.stats-note--left { text-align: left; margin-top: 0.75rem; }
.section--light .stats-note,
.section--alt .stats-note { color: var(--text-muted-on-paper); }

/* ============================================================
   Team
   ============================================================ */
.founders-grid {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
@media (min-width: 720px) { .founders-grid { grid-template-columns: 1fr 1fr; } }
.founder-card {
  border: 1px solid var(--line-on-paper);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  background: var(--paper);
}
.founder-card .role {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--orange-ink);
  margin-bottom: var(--space-1);
}
.founder-card h3 { font-size: 1.3rem; margin-bottom: var(--space-2); }
.founder-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5em; }
.founder-card li {
  font-size: 0.9rem;
  color: var(--text-muted-on-paper);
  display: flex;
  gap: 0.6em;
}
.founder-card li .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--orange); margin-top: 0.6em; flex: none; }

.advisors-head { margin-bottom: var(--space-3); }
.advisors-head h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted-on-paper);
}
.advisor-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}
.advisor-card {
  border: 1px solid var(--line-on-paper);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  flex: 1 1 320px;
  max-width: 100%;
}
@media (min-width: 640px) { .advisor-card { max-width: calc(50% - var(--space-3) / 2); } }
@media (min-width: 1080px) { .advisor-card { max-width: calc(33.333% - var(--space-3) * 2 / 3); } }
.advisor-card .avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--orange-strong);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  flex: none;
}
.advisor-card strong { display: block; font-size: 0.98rem; }
.advisor-card span { font-size: 0.84rem; color: var(--text-muted-on-paper); }
.team-note {
  margin-top: var(--space-4);
  font-size: 0.8rem;
  color: var(--text-muted-on-paper);
  opacity: 0.8;
  max-width: 60ch;
}

/* ============================================================
   Roadmap
   ============================================================ */
.roadmap-scroll {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  padding-bottom: var(--space-1);
  margin-top: var(--space-5);
}
.roadmap-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(160px, 1fr);
  gap: var(--space-2);
  width: max-content;
  max-width: none;
}
.roadmap-step {
  border: 1px solid var(--line-on-paper);
  border-top: 3px solid var(--orange);
  border-radius: var(--radius-sm);
  padding: var(--space-2);
  background: var(--paper);
}
.roadmap-step .yr {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--orange-ink);
  font-weight: 700;
}
.roadmap-step strong { display: block; font-size: 0.88rem; margin: 0.3em 0 0.2em; }
.roadmap-step span { font-size: 0.78rem; color: var(--text-muted-on-paper); }

/* ============================================================
   Product
   ============================================================ */
.product-grid {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}
@media (min-width: 960px) {
  .product-grid { grid-template-columns: 1.05fr 0.95fr; }
}

.device-stage {
  position: relative;
  background: radial-gradient(120% 100% at 50% 20%, var(--ink-700), var(--ink) 70%);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  border: 1px solid var(--line-on-ink);
}
.device-stage svg { width: 100%; height: auto; }
.device-stage--photo img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 50px -20px rgba(0,0,0,0.6);
}
.device-stage--dual {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.device-caption {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted-on-ink);
  text-align: center;
  letter-spacing: 0.03em;
}

.product-copy h3 { font-size: var(--fs-h3); margin-bottom: var(--space-2); }
.feature-list { list-style: none; margin: var(--space-4) 0 0; padding: 0; display: grid; gap: var(--space-3); }
.feature-list li { display: flex; gap: 0.9em; align-items: flex-start; }
.feature-list svg { width: 22px; height: 22px; color: var(--orange); flex: none; margin-top: 0.15em; }
.feature-list strong { display: block; }
.feature-list span { color: var(--text-muted-on-ink); font-size: 0.92rem; }
.section--light .feature-list span { color: var(--text-muted-on-paper); }

.spec-sheet {
  margin-top: var(--space-5);
  border: 1px solid var(--line-on-ink);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.spec-sheet-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  background: var(--line-on-ink-soft);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--orange-strong);
}
.spec-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0.85em var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  border-top: 1px solid var(--line-on-ink);
}
.spec-row span:first-child { color: var(--text-muted-on-ink); }

/* ============================================================
   How it works
   ============================================================ */
.steps-grid {
  display: grid;
  gap: var(--space-4);
  counter-reset: step;
}
@media (min-width: 780px) {
  .steps-grid { grid-template-columns: repeat(3, 1fr); }
}
.step-card {
  background: var(--paper);
  border: 1px solid var(--line-on-paper);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  position: relative;
}
.step-card .step-index {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--orange-ink);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
  display: block;
}
.step-card .step-icon {
  width: 46px; height: 46px;
  border-radius: var(--radius-sm);
  background: var(--ink);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-3);
}
.step-card .step-icon svg { width: 22px; height: 22px; color: var(--orange-strong); }
.step-card h3 { font-size: 1.15rem; margin-bottom: var(--space-1); }
.step-card p { color: var(--text-muted-on-paper); font-size: 0.94rem; }
@media (min-width: 780px) {
  .step-card:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%; right: -1.35rem;
    width: 1.1rem; height: 1px;
    background: var(--line-on-paper);
  }
}

/* ============================================================
   Feature grid (Why CT in the room)
   ============================================================ */
.feature-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .feature-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1080px) { .feature-grid { grid-template-columns: repeat(4, 1fr); } }
.feature-tile {
  padding: var(--space-4);
  border: 1px solid var(--line-on-ink);
  border-radius: var(--radius-md);
  background: var(--ink-800);
}
.feature-tile .feature-icon {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(242,102,30,0.14);
  margin-bottom: var(--space-3);
}
.feature-tile svg { width: 20px; height: 20px; color: var(--orange-strong); }
.feature-tile h3 { font-size: 1.05rem; margin-bottom: var(--space-1); color: var(--text-on-ink); }
.feature-tile p { font-size: 0.9rem; color: var(--text-muted-on-ink); }
.feature-tile--light { background: var(--paper-2); border-color: var(--line-on-paper); }
.feature-tile--light h3 { color: var(--text-on-paper); }
.feature-tile--light p { color: var(--text-muted-on-paper); }

/* ============================================================
   About / Company
   ============================================================ */
.about-grid {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 900px) {
  .about-grid { grid-template-columns: 1fr 1fr; align-items: start; }
}
.about-copy { min-width: 0; }
.about-copy p + p { margin-top: var(--space-3); }
.about-copy .lead { font-size: var(--fs-lead); color: var(--text-on-paper); font-family: var(--font-display); font-weight: 500; }

.badge-row { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-4); }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.55em 1em;
  border-radius: 999px;
  border: 1px solid var(--line-on-paper);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted-on-paper);
}
.badge svg { width: 15px; height: 15px; color: var(--orange-ink); }

.origin-card {
  background: var(--paper-2);
  border: 1px solid var(--line-on-paper);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}
.origin-card .eyebrow { margin-bottom: var(--space-2); }
.origin-list { list-style: none; margin: var(--space-3) 0 0; padding: 0; display: grid; gap: var(--space-3); }
.origin-list li { display: flex; gap: 0.9em; }
.origin-list .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--orange); margin-top: 0.5em; flex: none;
}
.origin-list strong { display: block; }
.origin-list span { font-size: 0.9rem; color: var(--text-muted-on-paper); }

/* ============================================================
   CTA / Contact
   ============================================================ */
.contact-grid {
  display: grid;
  gap: var(--space-4);
}
@media (min-width: 780px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.contact-card {
  border: 1px solid var(--line-on-ink);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  background: var(--ink-800);
}
.contact-card .contact-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(242,102,30,0.14);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-1);
}
.contact-card svg { width: 21px; height: 21px; color: var(--orange-strong); }
.contact-card h3 { font-size: 1.15rem; }
.contact-card p { color: var(--text-muted-on-ink); font-size: 0.94rem; }
.contact-card .btn { margin-top: auto; align-self: flex-start; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--ink);
  color: var(--text-muted-on-ink);
  padding-block: var(--space-6) var(--space-4);
  border-top: 1px solid var(--line-on-ink);
}
.footer-top {
  display: grid;
  gap: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--line-on-ink);
}
@media (min-width: 780px) {
  .footer-top { grid-template-columns: 1.3fr 1fr 1fr; }
}
.footer-brand .brand { margin-bottom: var(--space-2); }
.footer-brand p { max-width: 34ch; font-size: 0.92rem; }
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-on-ink);
  margin-bottom: var(--space-2);
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.65em; }
.footer-col a { font-size: 0.92rem; transition: color var(--dur-fast); }
.footer-col a:hover { color: var(--orange-strong); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
  padding-top: var(--space-4);
  font-size: 0.8rem;
}
.footer-bottom .legal-note { max-width: 60ch; opacity: 0.75; }

/* ============================================================
   Nav active state
   ============================================================ */
.nav-primary a.is-active,
.mobile-nav-links a.is-active {
  color: var(--text-on-ink);
}
.nav-primary a.is-active::after { right: 0; }
.mobile-nav-links a.is-active span { color: var(--text-on-ink); }
.mobile-nav-links a.is-active { text-decoration: underline; text-decoration-color: var(--orange); text-underline-offset: 6px; }

/* ============================================================
   Page hero (internal pages)
   ============================================================ */
.page-hero {
  background: var(--ink);
  color: var(--text-on-ink);
  padding-top: calc(var(--space-8) + var(--space-3));
  padding-bottom: var(--space-6);
  overflow: hidden;
  position: relative;
  isolation: isolate;
}
.page-hero .hero-ring-field svg { width: min(900px, 130vw); opacity: 0.6; }
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(60% 70% at 50% 0%, rgba(16,17,20,0) 0%, var(--ink) 85%);
}
.page-hero .eyebrow { margin-bottom: var(--space-3); color: var(--orange-strong); }
.page-hero h1 { font-size: var(--fs-h2); max-width: 22ch; margin-bottom: var(--space-2); }
.page-hero h1 .accent { color: var(--orange); }
.page-hero p.lead-text { font-size: var(--fs-lead); color: var(--text-muted-on-ink); max-width: 62ch; }
.contact-poem {
  max-width: 40ch;
  line-height: 1.3;
}
.contact-hero-grid {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}
@media (min-width: 900px) {
  .contact-hero-grid { grid-template-columns: 1.15fr 0.85fr; }
}
.contact-hero-media {
  display: flex;
  justify-content: center;
}
.contact-hero-media img {
  width: 100%;
  max-width: 360px;
  height: auto;
  display: block;
}
.contact-brand-mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 0.8vw + 1.05rem, 1.9rem);
  color: var(--text-on-ink);
  margin: 0 0 var(--space-3);
  letter-spacing: -0.01em;
}
.contact-brand-mark .contact-brand-by {
  font-weight: 800;
  font-size: 1em;
  color: var(--text-on-ink);
  margin-left: 0.3em;
  letter-spacing: -0.01em;
}
.contact-brand-mark .contact-brand-company {
  font-weight: 800;
  font-size: 1.5em;
  color: var(--orange);
  letter-spacing: -0.01em;
}
.page-breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted-on-ink);
  margin-bottom: var(--space-3);
  display: flex;
  gap: 0.5em;
  align-items: center;
}
.page-breadcrumb a { color: var(--text-muted-on-ink); }
.page-breadcrumb a:hover { color: var(--orange-strong); }

/* ============================================================
   CTA banner (cross-page links)
   ============================================================ */
.cta-banner {
  border: 1px solid var(--line-on-ink);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
  background: var(--ink-800);
}
.section--light .cta-banner,
.section--alt .cta-banner {
  background: var(--paper);
  border-color: var(--line-on-paper);
}
.cta-banner h3 { font-size: 1.3rem; margin-bottom: 0.4em; max-width: 32ch; }
.cta-banner p { color: var(--text-muted-on-ink); max-width: 44ch; }
.section--light .cta-banner p,
.section--alt .cta-banner p { color: var(--text-muted-on-paper); }
.cta-banner-actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }

.teaser-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--orange-strong);
  margin-top: var(--space-3);
}
.section--light .teaser-link,
.section--alt .teaser-link { color: var(--orange-ink); }
.teaser-link svg { width: 16px; height: 16px; transition: transform var(--dur-fast) var(--ease-out); }
.teaser-link:hover svg { transform: translateX(3px); }

/* ============================================================
   Contact page
   ============================================================ */
.contact-hero-cards {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
  margin-top: var(--space-6);
}
@media (min-width: 780px) { .contact-hero-cards { grid-template-columns: repeat(3, 1fr); } }

.contact-form-wrap {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 960px) { .contact-form-wrap { grid-template-columns: 1fr 1fr; align-items: start; } }

.form-card {
  background: var(--paper);
  border: 1px solid var(--line-on-paper);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}
.form-row { display: grid; gap: var(--space-3); margin-bottom: var(--space-3); }
@media (min-width: 560px) { .form-row--split { grid-template-columns: 1fr 1fr; } }
.field { display: flex; flex-direction: column; gap: 0.5em; }
.field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-on-paper);
}
.field .req { color: var(--orange-ink); }
.field input,
.field select,
.field textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.8em 0.9em;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--line-on-paper);
  background: #fff;
  color: var(--text-on-paper);
  transition: border-color var(--dur-fast) var(--ease-out);
}
.field textarea { resize: vertical; min-height: 120px; font-family: var(--font-body); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--orange);
}
.field-hint { font-size: 0.78rem; color: var(--text-muted-on-paper); }
.form-foot { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-2); }
.form-note { font-size: 0.8rem; color: var(--text-muted-on-paper); }
.form-status {
  font-size: 0.85rem;
  padding: 0.75em 1em;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
  display: none;
}
.form-status.is-visible { display: block; }
.form-status { background: rgba(179, 74, 17, 0.1); color: var(--orange-ink); border: 1px solid rgba(179,74,17,0.25); }
.form-status.is-error { background: rgba(200, 40, 40, 0.08); color: #B31F1F; border: 1px solid rgba(200,40,40,0.25); }

.direct-contact-list { display: grid; gap: var(--space-3); }
.direct-contact-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-3);
  border: 1px solid var(--line-on-paper);
  border-radius: var(--radius-md);
}
.direct-contact-item .icon-badge {
  width: 40px; height: 40px; flex: none;
  border-radius: 50%;
  background: var(--ink);
  display: flex; align-items: center; justify-content: center;
}
.direct-contact-item .icon-badge svg { width: 19px; height: 19px; color: var(--orange-strong); }
.direct-contact-item strong { display: block; margin-bottom: 0.2em; }
.direct-contact-item span { font-size: 0.9rem; color: var(--text-muted-on-paper); }
.direct-contact-item a.mail-link { color: var(--orange-ink); font-weight: 600; font-size: 0.9rem; }

/* ============================================================
   Comparison table
   ============================================================ */
.table-scroll { overflow-x: auto; border: 1px solid var(--line-on-paper); border-radius: var(--radius-md); }
.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  font-size: 0.92rem;
}
.compare-table thead th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted-on-paper);
  padding: var(--space-2) var(--space-3);
  background: var(--paper-2);
  border-bottom: 1px solid var(--line-on-paper);
}
.compare-table td,
.compare-table tbody th {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--line-on-paper-soft);
  text-align: left;
  font-weight: 500;
}
.compare-table tbody th { color: var(--text-on-paper); font-weight: 700; }
.compare-table tbody tr:last-child td,
.compare-table tbody tr:last-child th { border-bottom: none; }
.compare-table tr.is-highlight { background: rgba(242, 102, 30, 0.07); }
.compare-table tr.is-highlight th { color: var(--orange-ink); }

/* ============================================================
   News / milestones page
   ============================================================ */
.milestone-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-on-paper);
}
.milestone-item {
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--line-on-paper);
}
.milestone-item .yr {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--orange-ink);
  font-size: 1.05rem;
}
.milestone-item h3 { font-size: 1.15rem; margin-bottom: 0.35em; }
.milestone-item p { color: var(--text-muted-on-paper); font-size: 0.94rem; max-width: 62ch; }
.milestone-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25em 0.6em;
  border-radius: 999px;
  background: var(--paper-2);
  color: var(--text-muted-on-paper);
  margin-bottom: 0.6em;
}

.empty-panel {
  border: 1.5px dashed var(--line-on-ink);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  color: var(--text-muted-on-ink);
}
.empty-panel svg { width: 32px; height: 32px; margin: 0 auto var(--space-2); color: var(--orange-strong); }
.empty-panel h3 { color: var(--text-on-ink); margin-bottom: 0.4em; font-size: 1.1rem; }
.empty-panel p { font-size: 0.92rem; max-width: 48ch; margin-inline: auto; }

/* ============================================================
   Utilities
   ============================================================ */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}