@font-face {
  font-family: 'Clash Display';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/clashdisplay-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Clash Display';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('fonts/clashdisplay-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Clash Display';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('fonts/clashdisplay-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Satoshi';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url('fonts/satoshi-300.woff2') format('woff2');
}
@font-face {
  font-family: 'Satoshi';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/satoshi-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Satoshi';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('fonts/satoshi-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Satoshi';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('fonts/satoshi-700.woff2') format('woff2');
}/* ============================================================
   FIRsense — design system
   Scientific instrument × editorial journal
   ============================================================ */

/* Fonts loaded via <link> in HTML head for parallel download */

/* ---------- tokens ---------- */
:root {
  --ink-900: #070e18;
  --ink-800: #0d1b2a;
  --ink-700: #0f2135;
  --ink-600: #16293f;
  --ink-500: #1b263b;
  --ink-400: #2a3a54;
  --ink-300: #415977;
  --mist:    #7a8ba3;
  --mist-2:  #a7b5c8;
  --bone:    #e0e1dd;
  --cream:   #f5f5f3;

  --orange:  #ff9f1c;
  --cyan:    #3ebbf0;
  --green:   #2ada93;

  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 24px;
  --s-6: 32px; --s-7: 48px; --s-8: 64px; --s-9: 96px; --s-10: 128px; --s-11: 192px;

  --fs-display: clamp(48px, 9vw, 148px);
  --fs-h1:      clamp(40px, 6vw, 96px);
  --fs-h2:      clamp(32px, 4.5vw, 64px);
  --fs-h3:      clamp(22px, 2.2vw, 30px);
  --fs-lead:    clamp(18px, 1.7vw, 24px);
  --fs-body:    17px;
  --fs-small:   15px;
  --fs-meta:    13px;

  --ff-display: 'Clash Display', ui-sans-serif, system-ui, sans-serif;
  --ff-body:    'Satoshi', ui-sans-serif, system-ui, sans-serif;
  --ff-mono:    'Satoshi', ui-sans-serif, system-ui, sans-serif; /* mono dropped, aliased to body */

  --container: 1320px;
  --gutter: clamp(20px, 4vw, 56px);

  --rule: 1px solid color-mix(in oklab, var(--ink-300) 60%, transparent);
  --rule-strong: 1px solid var(--ink-300);
  --rule-faint: 1px solid color-mix(in oklab, var(--ink-300) 28%, transparent);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-exp: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ink-900);
  color: var(--bone);
  font-family: var(--ff-body);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.7;
  font-feature-settings: "ss01", "ss02", "cv01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }

::selection { background: var(--orange); color: var(--ink-900); }

/* ---------- a11y ---------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 12px;
  z-index: 1000;
  background: var(--orange);
  color: var(--ink-900);
  padding: 12px 20px;
  font-family: var(--ff-body);
  font-weight: 500;
  text-decoration: none;
  transition: top .2s var(--ease-out);
}
.skip-link:focus {
  top: 12px;
  outline: 2px solid var(--bone);
  outline-offset: 2px;
}
:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
  border-radius: 2px;
}
.btn:focus-visible, .carousel-btn:focus-visible {
  outline-offset: 4px;
}

/* ---------- perf: section-level containment + below-fold virtualization ---------- */
.section { contain-intrinsic-size: 600px; }
#team, #partners, #news, #traction { content-visibility: auto; contain-intrinsic-size: 800px; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.meta {
  font-family: var(--ff-body);
  font-size: 14px;
  letter-spacing: 0;
  color: var(--mist);
  font-weight: 500;
}

.section {
  padding: var(--s-10) 0;
  position: relative;
}
.section + .section { border-top: var(--rule-faint); }
.section--tight { padding: var(--s-8) 0; }
.section--wide  { padding: var(--s-11) 0 var(--s-10); }

/* default head — ledger style: meta aligned to top-left, title beside */
.section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-5);
  margin-bottom: var(--s-9);
  padding-top: var(--s-5);
  border-top: var(--rule-strong);
}
@media (min-width: 900px) {
  .section-head {
    grid-template-columns: minmax(180px, 1fr) 3fr;
    gap: var(--s-9);
    align-items: start;
  }
}
.section-head .sh-meta {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  padding-top: var(--s-1);
}
.section-head .sh-num {
  font-family: var(--ff-body);
  font-size: 14px;
  letter-spacing: 0;
  color: var(--orange);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.section-head .sh-kicker {
  font-family: var(--ff-body);
  font-size: 14px;
  letter-spacing: 0;
  color: var(--mist-2);
  font-weight: 400;
}
.section-title {
  font-family: var(--ff-display);
  font-weight: 400;
  font-size: var(--fs-h2);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--bone);
  margin: 0;
  max-width: 20ch;
}
.section-lead {
  font-size: var(--fs-lead);
  line-height: 1.45;
  color: var(--mist-2);
  max-width: 56ch;
  margin: var(--s-6) 0 0;
  font-weight: 400;
}

/* stacked variant — used to break rhythm; title goes full-width big */
.section-head--stacked {
  grid-template-columns: 1fr;
  gap: var(--s-6);
}
@media (min-width: 900px) {
  .section-head--stacked { grid-template-columns: 1fr; gap: var(--s-6); }
}
.section-head--stacked .sh-meta {
  flex-direction: row;
  gap: var(--s-6);
  align-items: baseline;
}
.section-head--stacked .section-title {
  font-size: var(--fs-h1);
  max-width: 22ch;
  line-height: 0.94;
}
.section-head--stacked .section-lead { max-width: 62ch; }

/* NAV */
#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  background: color-mix(in oklab, var(--ink-900) 72%, transparent);
  border-bottom: var(--rule-faint);
  transition: border-color .3s var(--ease-out);
}
#nav.scrolled { border-bottom-color: var(--ink-300); }
.nav-inner {
  max-width: var(--container); margin: 0 auto;
  padding: var(--s-4) var(--gutter);
  display: flex; align-items: center; gap: var(--s-6);
}
.nav-logo img { height: 28px; width: auto; filter: brightness(0) invert(1); }
.nav-links { display: none; gap: var(--s-6); margin-left: auto; margin-right: var(--s-5); }
.nav-links a {
  font-family: var(--ff-body);
  font-size: 15px;
  letter-spacing: 0;
  color: var(--mist-2);
  font-weight: 500;
  transition: color .2s;
  position: relative;
  padding: var(--s-2) 0;
}
.nav-links a:hover { color: var(--bone); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: var(--orange);
  transition: right .3s var(--ease-out);
}
.nav-links a:hover::after { right: 0; }
@media (min-width: 980px) { .nav-links { display: flex; } }
.nav-cta { margin-left: auto; }
@media (min-width: 980px) { .nav-cta { margin-left: 0; } }

.btn {
  display: inline-flex; align-items: center; gap: var(--s-2);
  padding: 12px 20px;
  font-family: var(--ff-body);
  font-size: 16px; font-weight: 500;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: all .22s var(--ease-out);
  white-space: nowrap;
}
.btn-primary { background: var(--orange); color: var(--ink-900); }
.btn-primary:hover { background: color-mix(in oklab, var(--orange) 85%, #fff); transform: translateY(-1px); }
.btn-secondary { background: transparent; border-color: var(--ink-300); color: var(--bone); }
.btn-secondary:hover { border-color: var(--bone); background: color-mix(in oklab, var(--bone) 6%, transparent); }
.btn-lg { padding: 14px 24px; font-size: 15px; }

.hamburger { display: flex; flex-direction: column; gap: 5px; margin-left: auto; padding: 8px; }
.hamburger span { width: 22px; height: 1.5px; background: var(--bone); }
@media (min-width: 980px) { .hamburger { display: none; } }

.mob-menu {
  position: fixed; inset: 0; z-index: 200;
  background: var(--ink-900);
  transform: translateX(100%);
  transition: transform .4s var(--ease-out);
  display: flex; flex-direction: column;
  padding: var(--s-8) var(--gutter);
  gap: var(--s-5);
}
.mob-menu.open { transform: translateX(0); }
.mob-close {
  position: absolute; top: var(--s-5); right: var(--gutter);
  font-size: 32px; color: var(--bone);
}
.mob-menu a {
  font-family: var(--ff-display);
  font-size: 32px; font-weight: 500;
  color: var(--bone);
  padding: var(--s-3) 0;
  border-bottom: var(--rule-faint);
}
.mob-menu .mob-cta {
  margin-top: auto;
  background: var(--orange); color: var(--ink-900);
  padding: var(--s-4);
  border: 0; text-align: center;
  font-family: var(--ff-body); font-size: 16px;
}

/* HERO */
#hero {
  position: relative;
  padding: 112px 0 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.hero-statement {
  min-height: calc(100vh - 112px);
  min-height: calc(100svh - 112px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--s-8);
  padding-bottom: var(--s-8);
}
.hero-scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  color: var(--mist-2);
  align-self: flex-start;
  padding: var(--s-2) 0;
  transition: color .2s;
}
.hero-scroll-cue svg { width: 18px; height: 28px; animation: scroll-bounce 2s ease-in-out infinite; }
.hero-scroll-cue:hover { color: var(--orange); }
@keyframes scroll-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.8; }
  50%      { transform: translateY(4px); opacity: 1; }
}
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-bg::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 80% 20%, color-mix(in oklab, var(--orange) 10%, transparent), transparent 60%),
    radial-gradient(ellipse 70% 80% at 10% 90%, color-mix(in oklab, var(--cyan) 8%, transparent), transparent 65%);
}
#spectrum-canvas {
  position: absolute;
  top: 112px;
  left: 0; right: 0;
  height: calc(100vh - 112px);
  height: calc(100svh - 112px);
  width: 100%;
  opacity: 0.4;
  z-index: 1;
  pointer-events: none;
}
.hero-grid {
  position: relative; z-index: 2;
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
  padding-top: var(--s-4);
}
.hero-meta-row {
  display: flex; align-items: center; gap: var(--s-5);
  padding-bottom: var(--s-5);
  border-bottom: var(--rule-faint);
  flex-wrap: wrap;
}
.hero-title {
  font-family: var(--ff-display);
  font-weight: 400;
  font-size: clamp(44px, 7.5vw, 128px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0;
  max-width: 18ch;
}
.hero-title em { font-style: italic; font-weight: 400; color: var(--orange); }
.hero-body {
  display: grid; grid-template-columns: 1fr; gap: var(--s-6);
  margin-top: var(--s-6);
  padding-top: var(--s-5);
  border-top: var(--rule-faint);
  scroll-margin-top: 112px;
}
@media (min-width: 980px) {
  .hero-body {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: var(--s-8);
    align-items: start;
  }
}
.hero-lead {
  font-size: var(--fs-lead); line-height: 1.4;
  color: var(--mist-2); max-width: 48ch; font-weight: 400; margin: 0;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-5); }

.hero-panel {
  position: relative;
  padding: var(--s-5);
  background: color-mix(in oklab, var(--ink-800) 30%, transparent);
  border: var(--rule-faint);
  backdrop-filter: blur(6px);
  display: grid; gap: var(--s-4);
}
.hero-panel-head {
  padding-bottom: var(--s-3); border-bottom: var(--rule-faint);
}
.hero-panel-head .meta { color: var(--mist-2); }
.fingerprint { display: grid; gap: var(--s-3); }
.fp-row { display: grid; grid-template-columns: 96px 1fr; gap: var(--s-3); align-items: center; }
.fp-label { font-family: var(--ff-mono); font-size: var(--fs-meta); color: var(--mist-2); letter-spacing: 0.01em;  }
.fp-bars { display: flex; gap: 0; justify-content: space-between; align-items: flex-end; height: 32px; }
.fp-bars span { width: 1.5px; background: var(--cyan); opacity: 0.9; transition: height .6s var(--ease-out); min-height: 1px; flex: 0 0 1.5px; }
.fp-caption { padding-top: var(--s-3); border-top: var(--rule-faint); font-family: var(--ff-mono); font-size: var(--fs-meta); color: var(--mist); letter-spacing: 0.04em; }

.hero-specs {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: color-mix(in oklab, var(--ink-400) 50%, transparent);
  margin-top: var(--s-2);
}
.hero-spec { background: color-mix(in oklab, var(--ink-800) 40%, transparent); padding: var(--s-4) var(--s-3); }
.hero-spec-num {
  font-family: var(--ff-display); font-weight: 500;
  font-size: 26px; line-height: 1; letter-spacing: -0.025em; color: var(--bone);
}
.hero-spec:first-child .hero-spec-num { color: var(--orange); }
.hero-spec-num sup { font-family: var(--ff-mono); font-size: 13px; color: var(--orange); margin-left: 2px; font-weight: 500; vertical-align: super; }
.hero-spec-lbl { font-family: var(--ff-mono); font-size: 12px; letter-spacing: 0.02em;  color: var(--mist); margin-top: var(--s-2); }

.hero-crawl {
  margin-top: var(--s-6);
  padding: var(--s-3) 0;
  border-top: var(--rule-faint);
  overflow: hidden; position: relative; z-index: 2;
}
.hero-crawl-track {
  display: flex; gap: var(--s-8); white-space: nowrap;
  animation: crawl 52s linear infinite;
  font-family: var(--ff-mono); font-size: var(--fs-meta);
  letter-spacing: 0.03em;  color: var(--mist);
}
.hero-crawl-track span { display: inline-flex; align-items: center; gap: var(--s-4); }
.hero-crawl-track em { font-style: normal; color: var(--orange); font-weight: 500; }
@keyframes crawl { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* PROBLEM */
.problem-list { display: grid; gap: 0; border-top: var(--rule-strong); }
.problem-row {
  display: grid; grid-template-columns: 60px 1fr 1fr; gap: var(--s-6);
  align-items: start;
  padding: var(--s-7) 0;
  border-bottom: var(--rule-strong);
  transition: background .4s var(--ease-out);
}
.problem-row:hover { background: color-mix(in oklab, var(--ink-700) 40%, transparent); }
.problem-row .pr-num { font-family: var(--ff-mono); font-size: var(--fs-meta); color: var(--orange); letter-spacing: 0.02em; padding-top: 6px; }
.problem-row .pr-title { font-family: var(--ff-display); font-weight: 500; font-size: clamp(22px, 2vw, 30px); line-height: 1.1; letter-spacing: -0.015em; color: var(--bone); margin: 0; }
.problem-row .pr-desc { color: var(--mist-2); line-height: 1.7; max-width: 56ch; font-weight: 400; margin: 0; }
@media (max-width: 820px) { .problem-row { grid-template-columns: 1fr; gap: var(--s-3); } }

.market-stat {
  display: grid; grid-template-columns: 1fr; gap: var(--s-5);
  padding: var(--s-8) 0; border-bottom: var(--rule-strong);
}
@media (min-width: 820px) { .market-stat { grid-template-columns: auto 1fr; gap: var(--s-8); align-items: end; } }
.market-stat-num { font-family: var(--ff-display); font-weight: 500; font-size: clamp(72px, 12vw, 180px); line-height: 0.85; letter-spacing: -0.04em; color: var(--orange); }
.market-stat-body .meta { color: var(--orange); margin-bottom: var(--s-2); display: block; }
.market-stat-body p { font-size: var(--fs-lead); color: var(--mist-2); max-width: 52ch; line-height: 1.45; font-weight: 400; margin: 0; }

/* TECHNOLOGY */
.tech-grid { display: grid; grid-template-columns: 1fr; gap: var(--s-6); }
@media (min-width: 980px) { .tech-grid { grid-template-columns: 1fr 1fr; gap: var(--s-8); align-items: start; } }
.tech-pillars { display: grid; gap: 0; border-top: var(--rule-faint); }
.tech-pillar {
  padding: var(--s-5) 0;
  border-bottom: var(--rule-faint);
  display: grid; grid-template-columns: auto 1fr; gap: var(--s-5);
}
.tech-pillar .tp-num { font-family: var(--ff-mono); font-size: var(--fs-meta); color: var(--orange); padding-top: 6px; min-width: 32px; }
.tech-pillar h4 { font-family: var(--ff-display); font-weight: 500; font-size: 22px; letter-spacing: -0.01em; margin: 0 0 var(--s-2); color: var(--bone); }
.tech-pillar p { color: var(--mist-2); margin: 0; font-weight: 400; line-height: 1.7; }

.tech-images { display: grid; gap: var(--s-3); }
.tech-img-lg { aspect-ratio: 16/10; background: var(--ink-600); overflow: hidden; position: relative; border: var(--rule-faint); }
.tech-img-lg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, color-mix(in oklab, var(--ink-900) 40%, transparent), transparent 50%); pointer-events: none; }
.tech-img-schematic {
  aspect-ratio: 1400 / 650;
  background: var(--ink-700);
  border: var(--rule-strong);
  padding: var(--s-3);
  cursor: zoom-in;
  transition: transform .45s var(--ease-out), box-shadow .45s var(--ease-out), border-color .3s var(--ease-out);
  transform-origin: center;
  position: relative;
  z-index: 1;
}
.tech-img-schematic::after { display: none; }
.tech-img-schematic svg { width: 100%; height: 100%; display: block; }
.tech-img-schematic:hover {
  transform: scale(2.1);
  box-shadow: 0 48px 120px -10px rgba(0,0,0,0.7), 0 0 0 1px color-mix(in oklab, var(--orange) 50%, transparent);
  border-color: color-mix(in oklab, var(--orange) 60%, var(--ink-300));
  z-index: 20;
}
/* align zoom origin so it expands toward visible page area */
@media (min-width: 980px) {
  .tech-img-schematic { transform-origin: center right; }
  .tech-img-schematic:hover { transform: scale(2); }
}
.tech-img-lg img { width: 100%; height: 100%; object-fit: cover; }
.tech-img-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-3); }
.tech-img-row > div { aspect-ratio: 4/3; overflow: hidden; background: var(--ink-600); border: var(--rule-faint); }
.tech-img-row img { width: 100%; height: 100%; object-fit: cover; }

.tech-proven {
  margin-top: var(--s-6);
  padding: var(--s-5);
  border: var(--rule-strong);
  background: color-mix(in oklab, var(--ink-700) 60%, transparent);
  display: grid; gap: var(--s-3);
}
.tech-proven .meta { color: var(--green); }
.tech-proven strong { color: var(--bone); font-weight: 500; display: block; font-size: 16px; }
.tech-proven p { margin: 0; color: var(--mist-2); font-weight: 400; }

/* full-width variant with lab photo on the right */
.tech-proven--full {
  margin-top: var(--s-8);
  padding: 0;
  border: var(--rule-strong);
  background: color-mix(in oklab, var(--ink-700) 60%, transparent);
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  overflow: hidden;
}
@media (min-width: 820px) {
  .tech-proven--full { grid-template-columns: 1fr 1fr; align-items: stretch; }
}
.tech-proven-body {
  padding: var(--s-6) var(--s-7);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--s-3);
}
.tech-proven-body .meta { color: var(--green); }
.tech-proven-body h3 {
  font-family: var(--ff-display);
  font-weight: 400;
  font-size: clamp(26px, 2.6vw, 36px);
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--bone);
  margin: 0;
}
.tech-proven-body p {
  margin: 0;
  color: var(--mist-2);
  font-weight: 400;
  line-height: 1.65;
  font-size: 17px;
  max-width: 58ch;
}
.tech-proven-photo {
  aspect-ratio: 4/3;
  overflow: hidden;
  border-left: 1px solid var(--ink-400);
}
@media (max-width: 819px) {
  .tech-proven-photo { aspect-ratio: 16/9; border-left: 0; border-top: 1px solid var(--ink-400); }
}
.tech-proven-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.03);
}

.thz-gap {
  margin-top: var(--s-11);
  padding: var(--s-10) 0 var(--s-9);
  border-top: var(--rule-strong);
}
.thz-gap-head { display: grid; grid-template-columns: 1fr; gap: var(--s-5); margin-bottom: var(--s-9); }
@media (min-width: 900px) { .thz-gap-head { grid-template-columns: 1fr 2fr; gap: var(--s-8); } }
.thz-gap-head h3 { font-family: var(--ff-display); font-weight: 500; font-size: clamp(28px, 3.5vw, 52px); line-height: 1; letter-spacing: -0.02em; margin: 0; color: var(--bone); max-width: 14ch; }
.thz-gap-head > div { display: grid; gap: var(--s-4); }
.thz-gap-head p { font-size: 17px; color: var(--mist-2); max-width: 62ch; font-weight: 400; line-height: 1.7; margin: 0; }
.thz-gap-head em { color: var(--orange); font-style: italic; font-weight: 400; }

/* ---------- THz Spectrum (delight) ---------- */
.thz-spectrum {
  position: relative;
  padding: var(--s-6) 0 var(--s-4);
  display: grid;
  gap: var(--s-4);
}
.ts-scale {
  position: relative;
  height: 20px;
  margin-bottom: var(--s-2);
}
.ts-scale::before {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ink-300) 10%, var(--ink-300) 90%, transparent);
}
.ts-scale span {
  position: absolute;
  transform: translateX(-50%);
  bottom: 4px;
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--mist);
  white-space: nowrap;
}
.ts-scale span::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -8px;
  width: 1px;
  height: 6px;
  background: var(--ink-300);
}

.ts-bands {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  gap: 0;
  min-height: 160px;
  border: var(--rule-strong);
  background: var(--ink-900);
  overflow: hidden;
}

/* electronic band — cool navy/cyan gradient */
.ts-band {
  padding: var(--s-5);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--s-2);
  position: relative;
  background:
    repeating-linear-gradient(90deg,
      color-mix(in oklab, var(--ink-300) 30%, transparent) 0 1px,
      transparent 1px 32px);
}
.ts-band-left {
  background-color: color-mix(in oklab, var(--cyan) 10%, var(--ink-700));
  background-image:
    repeating-linear-gradient(90deg,
      color-mix(in oklab, var(--cyan) 20%, transparent) 0 1px,
      transparent 1px 32px),
    linear-gradient(90deg, var(--ink-800), color-mix(in oklab, var(--cyan) 14%, var(--ink-700)));
}
.ts-band-right {
  align-items: flex-end;
  text-align: right;
  background-color: color-mix(in oklab, var(--bone) 6%, var(--ink-700));
  background-image:
    repeating-linear-gradient(90deg,
      color-mix(in oklab, var(--bone) 18%, transparent) 0 1px,
      transparent 1px 32px),
    linear-gradient(90deg, color-mix(in oklab, var(--bone) 10%, var(--ink-700)), var(--ink-800));
}
.ts-band-label {
  font-family: var(--ff-display);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--bone);
}
.ts-band-sub {
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  
  color: var(--mist);
}

/* the void — visibly separated, darker, hash-patterned */
.ts-void {
  position: relative;
  background: var(--ink-900);
  border-left: 1px dashed var(--ink-300);
  border-right: 1px dashed var(--ink-300);
  margin: 0 -1px;
  box-shadow:
    inset 12px 0 24px -8px var(--ink-900),
    inset -12px 0 24px -8px var(--ink-900);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--s-5);
  gap: var(--s-2);
  overflow: hidden;
}
.ts-void canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  display: block;
}
.ts-void-overlay {
  position: absolute; inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg,
      color-mix(in oklab, var(--ink-900) 50%, transparent) 0%,
      transparent 10%,
      transparent 90%,
      color-mix(in oklab, var(--ink-900) 50%, transparent) 100%);
}
.ts-void-labels {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--s-1);
  pointer-events: none;
  padding: var(--s-3) var(--s-5);
  background: color-mix(in oklab, var(--ink-900) 72%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid color-mix(in oklab, var(--orange) 30%, transparent);
  box-shadow: 0 4px 24px color-mix(in oklab, var(--ink-900) 50%, transparent);
}
.ts-void-label {
  font-family: var(--ff-display);
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--bone);
}
.ts-void-claim {
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  
  color: var(--orange);
}
.ts-void-sub { display: none; }

/* FIRsense bridging band — sits below, fills the void horizontally */
.ts-firsense {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  gap: 0;
  padding-top: var(--s-3);
}
.ts-fr-band {
  grid-column: 2;
  position: relative;
  height: 14px;
  margin: 0 -1px;
  background: linear-gradient(90deg,
    color-mix(in oklab, var(--orange) 0%, transparent),
    var(--orange) 15%,
    var(--orange) 85%,
    color-mix(in oklab, var(--orange) 0%, transparent));
  box-shadow: 0 0 24px color-mix(in oklab, var(--orange) 40%, transparent);
}
.ts-fr-band::before, .ts-fr-band::after {
  content: "";
  position: absolute; top: -8px; bottom: -8px;
  width: 1px;
  background: var(--orange);
}
.ts-fr-band::before { left: 10%; }
.ts-fr-band::after  { right: 10%; }
.ts-fr-label {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--s-2);
  padding-top: var(--s-4);
}
.ts-fr-claim {
  font-family: var(--ff-display);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--bone);
}

@media (max-width: 640px) {
  .ts-band-label { font-size: 15px; }
  .ts-void-label { font-size: 18px; }
  .ts-void-sub, .ts-band-sub { display: none; }
}

.thz-facts {
  margin-top: var(--s-8);
  display: grid; grid-template-columns: 1fr; gap: 0;
}
@media (min-width: 820px) {
  .thz-facts { grid-template-columns: repeat(3, 1fr); gap: var(--s-6); }
}
.thz-fact {
  padding: var(--s-6) 0;
  border-top: var(--rule-faint);
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: var(--s-3);
  align-content: start;
}
.thz-fact .num {
  font-family: var(--ff-mono);
  font-size: var(--fs-meta);
  color: var(--orange);
  letter-spacing: 0.02em;
  min-height: 1.4em;
  line-height: 1.4;
}
.thz-fact h4 {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.15;
  margin: 0;
  color: var(--bone);
  min-height: 2.3em;
  display: flex;
  align-items: flex-start;
}
.thz-fact p {
  margin: 0;
  color: var(--mist-2);
  font-weight: 400;
  line-height: 1.7;
  max-width: 38ch;
}

/* SOLUTION — subsection rhythm */
.subsection + .subsection {
  margin-top: var(--s-10);
  padding-top: var(--s-9);
  border-top: var(--rule-faint);
}
.subsection-head {
  display: grid;
  gap: var(--s-3);
  margin-bottom: var(--s-7);
  max-width: 900px;
}
.subsection-head .meta { letter-spacing: 0.04em; }
.subsection-title {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: clamp(26px, 3.2vw, 42px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--bone);
  margin: var(--s-2) 0 0;
  max-width: 20ch;
}
.subsection-lead {
  font-size: 17px;
  line-height: 1.65;
  color: var(--mist-2);
  font-weight: 400;
  max-width: 62ch;
  margin: var(--s-3) 0 0;
}

/* COMPARISON */
.scatter-wrap {
  padding: var(--s-7);
  border: var(--rule-strong);
  background:
    radial-gradient(ellipse 60% 60% at 72% 24%, color-mix(in oklab, var(--orange) 8%, transparent), transparent 60%),
    color-mix(in oklab, var(--ink-700) 40%, transparent);
  position: relative;
}
@media (max-width: 720px) {
  .scatter-wrap { padding: var(--s-4); overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .scatter-svg { min-width: 560px; }
  .scatter-svg text { font-size: 14px !important; }
  .scatter-tooltip { max-width: 220px; padding: var(--s-3); font-size: 13px; }
}
@media (max-width: 480px) {
  .scatter-wrap { padding: var(--s-3); }
  .scatter-svg { min-width: 520px; }
}
.scatter-plot-area { position: relative; }
.scatter-svg { width: 100%; height: auto; max-width: 900px; margin: 0 auto; display: block; }
.scatter-dot { cursor: pointer; transition: transform .25s var(--ease-out); transform-origin: center; transform-box: fill-box; }
.scatter-dot:hover { transform: scale(1.06); }
.scatter-dot.firsense-dot .dot-main { filter: drop-shadow(0 0 22px color-mix(in oklab, var(--orange) 70%, transparent)); }
.fr-halo {
  transform-origin: 510px 100px;
  transform-box: view-box;
  animation: fr-pulse 3.6s var(--ease-out) infinite;
}
.fr-halo-2 { animation-delay: 1.8s; }
@keyframes fr-pulse {
  0%   { r: 58; opacity: 0.55; }
  70%  { r: 110; opacity: 0; }
  100% { r: 110; opacity: 0; }
}
.scatter-tooltip {
  position: absolute; max-width: 280px; padding: var(--s-4);
  background: var(--ink-800); border: var(--rule-strong);
  pointer-events: none; opacity: 0; transition: opacity .2s;
  font-size: 15px; z-index: 10;
}
.scatter-tooltip.active { opacity: 1; }
.scatter-tooltip-name { font-family: var(--ff-mono); font-size: var(--fs-meta); color: var(--orange); letter-spacing: 0.02em;  margin-bottom: var(--s-2); }
.scatter-tooltip-info { color: var(--mist-2); line-height: 1.65; }

/* APPLICATIONS */
.apps-grid {
  display: grid; grid-template-columns: 1fr; gap: 1px;
  background: var(--ink-400); border: var(--rule-strong);
}
@media (min-width: 900px) {
  .apps-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
    grid-template-rows: 1fr 1fr;
  }
  .apps-grid > :nth-child(1) { grid-row: 1 / span 2; grid-column: 1; }
  .apps-grid > :nth-child(2) { grid-row: 1; grid-column: 2; }
  .apps-grid > :nth-child(3) { grid-row: 2; grid-column: 2; }
  .apps-grid > :first-child .app-image { aspect-ratio: 4/3; }
  .apps-grid > :first-child .app-body { padding: var(--s-5); gap: var(--s-3); }
  .apps-grid > :first-child .app-title { font-size: 26px; line-height: 1.1; }
  .apps-grid > :first-child .app-desc { font-size: 15px; }
  .apps-grid > :nth-child(n+2) { flex-direction: row; }
  .apps-grid > :nth-child(n+2) .app-image { flex: 0 0 50%; aspect-ratio: auto; }
  .apps-grid > :nth-child(n+2) .app-body { flex: 1; }
}
.app-card { background: var(--ink-800); display: flex; flex-direction: column; transition: background .3s var(--ease-out); }
.app-card:hover { background: var(--ink-700); }
.app-image { aspect-ratio: 16/10; overflow: hidden; position: relative; }
.app-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-out); }
.app-card:hover .app-image img { transform: scale(1.04); }
.app-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, color-mix(in oklab, var(--ink-900) 70%, transparent)); }
.app-body { padding: var(--s-5); display: grid; gap: var(--s-3); }
.app-meta { display: flex; justify-content: space-between; font-family: var(--ff-mono); font-size: var(--fs-meta); color: var(--mist); letter-spacing: 0.02em;  padding-bottom: var(--s-3); border-bottom: var(--rule-faint); }
.app-meta .idx { color: var(--orange); }
.app-title { font-family: var(--ff-display); font-weight: 500; font-size: 22px; line-height: 1.15; letter-spacing: -0.01em; margin: 0; color: var(--bone); }
.app-desc { color: var(--mist-2); font-weight: 400; line-height: 1.7; font-size: 15px; margin: 0; }
.app-tag { font-family: var(--ff-mono); font-size: var(--fs-meta); letter-spacing: 0.02em; color: var(--orange);  padding-top: var(--s-3); border-top: var(--rule-faint); }

/* ============================================================
   PLATFORM OUTLOOK — tiered markets
   ============================================================ */
.tier {
  --tier-color: var(--mist);
  margin-top: var(--s-9);
}
.tier--primary  { --tier-color: var(--orange); }
.tier--emerging { --tier-color: var(--green); }
.tier--platform { --tier-color: var(--mist-2); }

.tier-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-5);
  align-items: start;
  padding-bottom: var(--s-5);
  margin-bottom: var(--s-6);
  border-bottom: 1px solid color-mix(in oklab, var(--tier-color) 30%, transparent);
}
.tier-badge {
  font-family: var(--ff-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink-900);
  background: var(--tier-color);
  padding: 8px 14px;
  border-radius: 2px;
  align-self: start;
  white-space: nowrap;
}
.tier-name {
  font-family: var(--ff-display);
  font-weight: 400;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--bone);
  margin: 0;
}
.tier-desc {
  font-size: 17px;
  line-height: 1.6;
  color: var(--mist-2);
  margin: var(--s-2) 0 0;
  font-weight: 400;
  max-width: 72ch;
}

.tier-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ink-400);
  border: var(--rule-faint);
}
@media (min-width: 720px) {
  /* per-tier col counts so each tier fills without empty slots */
  .tier--primary  .tier-grid { grid-template-columns: repeat(2, 1fr); }
  .tier--emerging .tier-grid { grid-template-columns: repeat(3, 1fr); }
  .tier--platform .tier-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1100px) {
  .tier--platform .tier-grid { grid-template-columns: repeat(4, 1fr); }
}

.tier-card {
  background: var(--ink-800);
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  position: relative;
  transition: background .3s var(--ease-out);
}
.tier-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--tier-color);
  opacity: 0.75;
}
.tier-card:hover { background: var(--ink-700); }
.tier-card-title {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--bone);
  margin: 0;
}
.tier-card-desc {
  color: var(--mist-2);
  font-size: 15px;
  line-height: 1.65;
  font-weight: 400;
  margin: 0;
}

/* legend */
.tier-legend {
  margin-top: var(--s-8);
  padding-top: var(--s-5);
  border-top: var(--rule-faint);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3) var(--s-6);
  font-family: var(--ff-body);
  font-size: 14px;
  color: var(--mist-2);
}
.tier-legend-item { display: inline-flex; align-items: center; gap: var(--s-2); }
.tier-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  display: inline-block;
}
.tier-legend-primary  .tier-dot { background: var(--orange); }
.tier-legend-emerging .tier-dot { background: var(--green); }
.tier-legend-platform .tier-dot { background: var(--mist-2); }

.apps-carousel-wrap { position: relative; margin-top: var(--s-6); }
.apps-carousel { overflow: hidden; padding: var(--s-2) 0; }
.apps-carousel-track { display: flex; gap: var(--s-4); padding: 0 var(--gutter); transition: transform .6s var(--ease-out); }
.app-carousel-card {
  flex: 0 0 320px;
  padding: var(--s-5);
  background: var(--ink-700);
  border: var(--rule-faint);
  display: grid; gap: var(--s-3); align-content: start;
  transition: border-color .2s;
}
@media (min-width: 1280px) {
  .app-carousel-card { flex: 0 0 380px; padding: var(--s-6); }
}
@media (min-width: 1600px) {
  .app-carousel-card { flex: 0 0 440px; padding: var(--s-6); }
}
.app-carousel-card:hover { border-color: var(--ink-300); }
.acc-icon { height: 48px; display: flex; align-items: center; }
.acc-badge { font-family: var(--ff-mono); font-size: var(--fs-meta); letter-spacing: 0.03em;  color: var(--mist-2); padding-bottom: var(--s-2); border-bottom: var(--rule-faint); }
.acc-title { font-family: var(--ff-display); font-weight: 500; font-size: 20px; letter-spacing: -0.01em; margin: 0; color: var(--bone); }
.acc-desc { color: var(--mist-2); font-weight: 400; font-size: 16px; line-height: 1.7; margin: 0; }
.apps-carousel-nav { display: flex; justify-content: flex-end; gap: var(--s-2); padding: var(--s-5) var(--gutter) 0; max-width: var(--container); margin: 0 auto; }
.carousel-btn { width: 52px; height: 52px; border: var(--rule-strong); color: var(--bone); display: flex; align-items: center; justify-content: center; transition: all .2s var(--ease-out); }
.carousel-btn svg { width: 22px; height: 22px; }
.carousel-btn:hover { background: var(--bone); color: var(--ink-900); }

/* HOW IT WORKS */
.hiw-steps { display: grid; grid-template-columns: 1fr; gap: var(--s-4); margin-top: var(--s-5); }
@media (min-width: 900px) { .hiw-steps { grid-template-columns: 1fr auto 1fr auto 1fr; align-items: stretch; } }
.hiw-step {
  padding: var(--s-6);
  background: color-mix(in oklab, var(--ink-700) 60%, transparent);
  border: var(--rule-strong);
  display: grid; gap: var(--s-3); align-content: start;
  position: relative;
}
.hiw-step-featured {
  border-color: var(--orange);
  background: color-mix(in oklab, var(--orange) 6%, var(--ink-700));
  animation: hiw-glow 4s ease-in-out 1s infinite;
}
@keyframes hiw-glow {
  0%, 100% { box-shadow: 0 0 0 0 transparent; }
  50%      { box-shadow: 0 0 48px color-mix(in oklab, var(--orange) 18%, transparent); }
}
.hiw-step {
  transition: transform .4s var(--ease-out), border-color .4s var(--ease-out);
}
.hiw-step:hover { transform: translateY(-4px); border-color: color-mix(in oklab, var(--orange) 40%, var(--ink-300)); }
.hiw-step-num { font-family: var(--ff-mono); font-size: var(--fs-meta); color: var(--orange); letter-spacing: 0.02em; }
.hiw-step-icon { margin: var(--s-3) 0; position: relative; }

/* step 1 — laser breathing */
.hiw-steps > :nth-of-type(1) .hiw-step-icon line:nth-of-type(1),
.hiw-steps > :nth-of-type(1) .hiw-step-icon circle:nth-of-type(1) {
  animation: hiw-laser 2.6s ease-in-out infinite;
}
.hiw-steps > :nth-of-type(1) .hiw-step-icon line:nth-of-type(2),
.hiw-steps > :nth-of-type(1) .hiw-step-icon circle:nth-of-type(2) {
  animation: hiw-laser 2.6s ease-in-out 1.3s infinite;
}
@keyframes hiw-laser {
  0%, 100% { opacity: 0.45; }
  50%      { opacity: 1; filter: drop-shadow(0 0 3px currentColor); }
}

/* step 2 — metasurface hum on inner grid */
.hiw-step-featured .hiw-step-icon rect:nth-of-type(2) {
  transform-origin: center; transform-box: fill-box;
  animation: hiw-hum 3.2s ease-in-out infinite;
}
@keyframes hiw-hum {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.06); opacity: 0.8; }
}

/* step 3 — emission rings */
.hiw-steps > :nth-of-type(5) .hiw-step-icon {
  overflow: visible;
}
.hiw-steps > :nth-of-type(5) .hiw-step-icon svg {
  overflow: visible;
}
.hiw-steps > :nth-of-type(5) .hiw-step-icon circle:nth-of-type(1) {
  transform-origin: center; transform-box: fill-box;
  animation: hiw-emit 2.4s var(--ease-out) infinite;
}
.hiw-steps > :nth-of-type(5) .hiw-step-icon circle:nth-of-type(2) {
  transform-origin: center; transform-box: fill-box;
  animation: hiw-emit 2.4s var(--ease-out) 1.2s infinite;
}
.hiw-steps > :nth-of-type(5) .hiw-step-icon circle:nth-of-type(3) {
  animation: hiw-emit-core 2.4s ease-in-out infinite;
}
@keyframes hiw-emit {
  0%   { transform: scale(0.4); opacity: 1; }
  70%  { opacity: 0.15; }
  100% { transform: scale(2.2); opacity: 0; }
}
@keyframes hiw-emit-core {
  0%, 100% { opacity: 0.7; }
  50%      { opacity: 1; filter: drop-shadow(0 0 5px currentColor); }
}
.hiw-step-badge { position: absolute; top: var(--s-5); right: var(--s-5); font-family: var(--ff-mono); font-size: 11px; letter-spacing: 0.04em; color: var(--orange);  padding: 4px 8px; border: 1px solid var(--orange); }
.hiw-step-title { font-family: var(--ff-display); font-weight: 500; font-size: 22px; letter-spacing: -0.01em; margin: 0; color: var(--bone); }
.hiw-step-desc { color: var(--mist-2); font-weight: 400; line-height: 1.7; margin: 0; }
.hiw-formula { font-family: var(--ff-mono); font-size: 16px; color: var(--orange); padding-top: var(--s-3); border-top: var(--rule-faint); margin-top: var(--s-3); }
.hiw-formula sub { font-size: 12px; }
.hiw-connector {
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-300);
  position: relative;
  min-width: 48px;
}
.hiw-connector::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 7px; height: 7px;
  margin-top: -3.5px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 12px color-mix(in oklab, var(--orange) 70%, transparent);
  opacity: 0;
  animation: hiw-flow 2.8s linear infinite;
  animation-delay: 1.2s;
}
@keyframes hiw-flow {
  0%   { left: 0%;  opacity: 0; }
  18%  { opacity: 1; }
  82%  { opacity: 1; }
  100% { left: calc(100% - 7px); opacity: 0; }
}
@media (max-width: 899px) {
  .hiw-connector { transform: rotate(90deg); padding: var(--s-2) 0; }
}

.hiw-specs { margin-top: var(--s-7); display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--ink-400); border: var(--rule-strong); }
@media (min-width: 700px) { .hiw-specs { grid-template-columns: repeat(4, 1fr); } }
.hiw-spec { background: var(--ink-800); padding: var(--s-6); display: grid; gap: var(--s-2); align-content: start; }
.hiw-spec-num { font-family: var(--ff-display); font-weight: 500; font-size: clamp(32px, 3.5vw, 48px); line-height: 0.95; letter-spacing: -0.03em; color: var(--orange); }
.hiw-spec-label { font-family: var(--ff-mono); font-size: var(--fs-meta); letter-spacing: 0.03em;  color: var(--mist); }

/* TRACTION timeline */
.timeline { margin-top: var(--s-5); display: grid; grid-template-columns: 1fr; gap: 0; }
@media (min-width: 900px) {
  .timeline { grid-template-columns: repeat(4, 1fr); position: relative; }
  .timeline::before {
    content: ""; position: absolute;
    top: calc(var(--s-7) + 15px); left: 0; right: 0; height: 1px;
    background: var(--ink-300);
  }
}
.tl-item {
  padding: var(--s-6) var(--s-5) var(--s-6) 0;
  border-bottom: var(--rule-faint);
  display: grid; gap: var(--s-3);
  position: relative;
}
@media (min-width: 900px) {
  .tl-item {
    border-bottom: 0;
    padding-top: var(--s-7);
    padding-right: var(--s-6);
    grid-template-rows: 30px auto auto auto;
  }
  .tl-dot { position: relative; z-index: 2; }
}
.tl-dot {
  width: 30px; height: 30px; border-radius: 50%;
  border: 2px solid var(--ink-300);
  background: var(--ink-900);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  font-weight: 600;
}
.tl-dot.done { border-color: var(--green); color: var(--green); }
.tl-dot.now { border-color: var(--orange); background: var(--orange); color: var(--ink-900); }
.tl-year { font-family: var(--ff-mono); font-size: var(--fs-meta); letter-spacing: 0.02em; color: var(--orange);  }
.tl-title { font-family: var(--ff-display); font-weight: 500; font-size: 22px; letter-spacing: -0.01em; margin: 0; color: var(--bone); }
.tl-desc { color: var(--mist-2); font-weight: 400; line-height: 1.7; font-size: 16px; max-width: 34ch; margin: 0; }

/* NEWS */
.news-logos { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-around; gap: var(--s-6); padding: var(--s-6) 0; border-top: var(--rule-faint); border-bottom: var(--rule-faint); margin-bottom: var(--s-7); }
.news-logo { height: 52px; width: auto; filter: brightness(0) invert(1); opacity: 0.45; transition: opacity .2s; }
.news-logo:hover { opacity: 0.9; }

.news-grid { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--ink-400); border: var(--rule-strong); }
@media (min-width: 700px) { .news-grid { grid-template-columns: repeat(3, 1fr); } }
.news-card { padding: var(--s-6); background: var(--ink-800); display: grid; gap: var(--s-4); align-content: start; transition: background .3s var(--ease-out); min-height: 240px; }
.news-card:hover { background: var(--ink-700); }
.news-card-top { display: flex; justify-content: space-between; padding-bottom: var(--s-3); border-bottom: var(--rule-faint); font-family: var(--ff-mono); font-size: var(--fs-meta); letter-spacing: 0.02em;  }
.news-tag { color: var(--orange); }
.news-date { color: var(--mist); }
.news-headline { font-family: var(--ff-display); font-weight: 500; font-size: 22px; line-height: 1.2; letter-spacing: -0.01em; margin: 0; color: var(--bone); }
.news-excerpt { color: var(--mist-2); font-weight: 400; line-height: 1.7; font-size: 16px; margin: 0; }
.news-link { font-family: var(--ff-mono); font-size: var(--fs-meta); letter-spacing: 0.02em;  color: var(--orange); margin-top: auto; }

.news-card--hidden { display: none; }
.news-grid.is-expanded .news-card--hidden { display: grid; }
.news-expand {
  display: flex;
  justify-content: center;
  padding: var(--s-7) 0 0;
}
.news-expand .btn { padding: 14px 28px; }

/* TEAM */
/* Team section — soft steel inversion (cool palette, gentler contrast than cream) */
#team {
  --team-bg: #1e2f48;       /* steel-lifted navy, one step above ink-800 */
  --team-surface: #263a54;  /* card face */
  --team-border: color-mix(in oklab, var(--bone) 14%, var(--team-bg));
  --team-text: var(--bone);
  --team-muted: var(--mist-2);
  background: var(--team-bg);
  color: var(--team-text);
  border-top: 0;
}
#team .section-title { color: var(--team-text); }
#team .section-lead { color: var(--team-muted); }
#team .sh-num { color: var(--orange); }
#team .sh-kicker { color: var(--team-muted); }

.team-grid {
  display: grid; grid-template-columns: 1fr; gap: 1px;
  background: var(--team-border);
  border: 1px solid var(--team-border);
  max-width: 900px; margin: 0 auto;
}
@media (min-width: 720px) { .team-grid { grid-template-columns: 1fr 1fr; } }
.team-card {
  background: var(--team-surface);
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--s-3);
}
.team-email { display: none; }
.team-photo {
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 50%;
  background: color-mix(in oklab, var(--bone) 10%, var(--team-bg));
  position: relative;
  border: 1px solid var(--team-border);
}
.team-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 50% var(--focus-y, 22%);
  transform: scale(var(--zoom, 1.15));
  transform-origin: 50% 30%;
  filter: grayscale(0.15) contrast(1.05) saturate(0.9);
}
.team-name { font-family: var(--ff-display); font-weight: 500; font-size: 24px; letter-spacing: -0.01em; margin: var(--s-3) 0 0; color: var(--team-text); text-align: center; }
.team-role { font-family: var(--ff-body); font-size: 14px; letter-spacing: 0;  color: var(--orange); margin: var(--s-1) 0 var(--s-3); text-align: center; }
.team-bio { color: var(--team-muted); font-weight: 400; line-height: 1.7; font-size: 16px; margin: 0; max-width: 34ch; text-align: center; }
.team-email { font-family: var(--ff-mono); font-size: var(--fs-meta); letter-spacing: 0.01em; color: var(--ink-900); border-bottom: 1px solid currentColor; padding-bottom: 2px; }

/* placeholder team cards (dashed, cream, muted) */
.team-grid--placeholders {
  margin-top: var(--s-5);
  background: transparent;
  border: 0;
  max-width: 1100px;
}
@media (min-width: 720px) {
  .team-grid--placeholders { grid-template-columns: repeat(2, 1fr); gap: var(--s-3); background: transparent; border: 0; }
}
@media (min-width: 1100px) {
  .team-grid--placeholders { grid-template-columns: repeat(4, 1fr); }
}
.team-card--ph {
  background: color-mix(in oklab, var(--cream) 96%, var(--ink-900));
  border: 1px dashed color-mix(in oklab, var(--ink-900) 30%, var(--cream));
  grid-template-columns: 56px 1fr;
  gap: var(--s-4);
  padding: var(--s-5);
  color: color-mix(in oklab, var(--ink-900) 55%, var(--cream));
}
.team-photo--ph {
  aspect-ratio: 1;
  border-radius: 50%;
  background: transparent;
  border: 1px dashed currentColor;
  display: flex; align-items: center; justify-content: center;
}
.team-card--ph .team-name { color: color-mix(in oklab, var(--ink-900) 75%, var(--cream)); font-size: 17px; }
.team-card--ph .team-role { color: currentColor; margin-bottom: var(--s-2); }
.team-card--ph .team-bio { font-size: 15px; color: currentColor; margin: 0; }

.team-hiring-unused {
  background: var(--ink-900);
  color: var(--cream);
}

/* PARTNERS */
.partners-grid { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--ink-400); border: var(--rule-strong); }
@media (min-width: 900px) {
  .partners-grid { grid-template-columns: repeat(6, 1fr); }
  .partners-grid > :nth-child(1) { grid-column: 1 / -1; padding: var(--s-7); }
  .partners-grid > :nth-child(n+2):nth-child(-n+4) { grid-column: span 2; }
  .partners-grid > :nth-child(5) { grid-column: 1 / -1; padding: var(--s-7); }
  .partners-grid > :nth-child(1) .partner-logo,
  .partners-grid > :nth-child(5) .partner-logo { height: 120px; }
  .partners-grid > :nth-child(1) .partner-logo img,
  .partners-grid > :nth-child(5) .partner-logo img { max-height: 96px; }
}
.partner-card { background: var(--ink-800); padding: var(--s-6); display: grid; gap: var(--s-4); align-content: start; transition: background .3s; }
.partner-card:hover { background: var(--ink-700); }
.partner-logo { height: 80px; display: flex; align-items: center; justify-content: flex-start; padding-bottom: var(--s-3); border-bottom: var(--rule-faint); }
.partner-logo img { max-height: 60px; width: auto; filter: brightness(0) invert(1); opacity: 0.85; }
.partner-type { font-family: var(--ff-mono); font-size: var(--fs-meta); letter-spacing: 0.03em;  color: var(--orange); }
.partner-desc { color: var(--mist-2); font-weight: 400; line-height: 1.7; font-size: 16px; margin: 0; }

/* CTA */
.cta-block {
  padding: var(--s-10) 0;
  border-top: var(--rule-strong);
  text-align: left;
}
.cta-block h2 {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: clamp(40px, 6vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin: 0 0 var(--s-5);
  max-width: 18ch;
}
.cta-block h2 em { font-style: italic; color: var(--orange); font-weight: 400; }
.cta-block p { font-size: var(--fs-lead); color: var(--mist-2); max-width: 52ch; font-weight: 400; margin: 0 0 var(--s-6); }

/* FOOTER */
footer { background: var(--ink-900); border-top: var(--rule-strong); padding: var(--s-8) 0 var(--s-6); margin-top: 0; }
.footer-grid { max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); display: grid; grid-template-columns: 1fr; gap: var(--s-6); }
@media (min-width: 820px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer-brand img { height: 28px; filter: brightness(0) invert(1); margin-bottom: var(--s-3); }
.footer-brand p { color: var(--mist); font-weight: 400; font-size: 16px; line-height: 1.65; max-width: 32ch; margin: 0; }
.footer-col h5 { font-family: var(--ff-mono); font-size: var(--fs-meta); letter-spacing: 0.03em;  color: var(--mist); margin: 0 0 var(--s-3); font-weight: 500; }
.footer-col a { display: block; padding: var(--s-1) 0; color: var(--bone); font-size: 16px; transition: color .2s; }
.footer-col a:hover { color: var(--orange); }
.footer-bottom { max-width: var(--container); margin: var(--s-8) auto 0; padding: var(--s-5) var(--gutter) 0; border-top: var(--rule-faint); display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--s-3); font-family: var(--ff-body); font-size: 13px; letter-spacing: 0; color: var(--mist); }
.footer-legal-links { display: flex; gap: var(--s-5); }
.footer-bottom a { color: var(--mist); }
.footer-bottom a:hover { color: var(--orange); }

/* animations */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease-out), transform .9s var(--ease-out); }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in.fd1 { transition-delay: 80ms; }
.fade-in.fd2 { transition-delay: 200ms; }
.fade-in.fd3 { transition-delay: 340ms; }
.fade-in.fd4 { transition-delay: 480ms; }
.fade-in.fd5 { transition-delay: 620ms; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ============================================================
   legal pages (imprint / privacy)
   ============================================================ */
.legal-page { padding: 160px 0 var(--s-10); }
.legal-page h1 { font-family: var(--ff-display); font-weight: 500; font-size: clamp(36px, 5vw, 72px); letter-spacing: -0.02em; margin: 0 0 var(--s-7); color: var(--bone); }
.legal-page h2 { font-family: var(--ff-display); font-weight: 500; font-size: 24px; margin-top: var(--s-7); color: var(--bone); }
.legal-page p, .legal-page li { color: var(--mist-2); font-weight: 400; line-height: 1.65; max-width: 70ch; }
.legal-page a { color: var(--orange); }

/* ============================================================
   HOW IT WORKS — interactive physics diagram
   ============================================================ */
.hiw-interactive {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  margin-top: var(--s-5);
}
@media (min-width: 980px) {
  .hiw-interactive {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: var(--s-7);
    align-items: start;
  }
}
.hiw-image-area {
  position: relative;
  padding: 0;
  background: color-mix(in oklab, var(--ink-700) 45%, transparent);
  border: var(--rule-strong);
  aspect-ratio: 16/10;
  overflow: hidden;
}
.hiw-image-area img,
.hiw-image-area svg.hiw-diagram {
  width: 100%; height: 100%;
  display: block;
}
.hiw-image-area svg.hiw-diagram {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hiw-region {
  position: absolute;
  border: 1px dashed transparent;
  cursor: pointer;
  transition: background .2s var(--ease-out), border-color .2s var(--ease-out);
}
.hiw-region::before {
  content: "";
  position: absolute;
  inset: 0;
  background: color-mix(in oklab, var(--orange) 0%, transparent);
  transition: background .2s var(--ease-out);
}
.hiw-region:hover,
.hiw-region.active {
  border-color: color-mix(in oklab, var(--orange) 70%, transparent);
  background: color-mix(in oklab, var(--orange) 12%, transparent);
}

.hiw-info-panel {
  padding: var(--s-6);
  background: color-mix(in oklab, var(--ink-700) 60%, transparent);
  border: var(--rule-strong);
  min-height: 400px;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}
.hiw-info-name {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: clamp(22px, 2.3vw, 28px);
  letter-spacing: -0.015em;
  line-height: 1.1;
  color: var(--bone);
  margin: 0;
}
.hiw-info-desc {
  font-size: 15px;
  color: var(--mist-2);
  font-weight: 400;
  line-height: 1.6;
  margin: 0;
}
.hiw-info-desc + .hiw-info-desc { margin-top: var(--s-3); }
.hiw-info-img {
  width: 100%;
  margin-top: var(--s-3);
  border: var(--rule-faint);
  aspect-ratio: 16/9;
  object-fit: cover;
}
.hiw-info-content { display: grid; gap: var(--s-3); }
.hiw-info-content[hidden] { display: none; }

.hiw-pub {
  margin-top: var(--s-7);
  display: flex;
  justify-content: flex-start;
}

/* Publications modal */
.pub-modal-backdrop {
  position: fixed; inset: 0;
  background: color-mix(in oklab, var(--ink-900) 82%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 250;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--gutter);
}
.pub-modal-backdrop.open { display: flex; }
.pub-modal {
  background: var(--ink-800);
  border: var(--rule-strong);
  max-width: 680px;
  width: 100%;
  padding: var(--s-6);
  display: grid;
  gap: var(--s-5);
}
.pub-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: var(--s-3);
  border-bottom: var(--rule-faint);
}
.pub-modal-close {
  font-size: 28px;
  line-height: 1;
  color: var(--bone);
  padding: 4px;
}
.pub-modal-close:hover { color: var(--orange); }
.pub-list li { border-bottom: var(--rule-faint); }
.pub-list li:last-child { border-bottom: 0; }
.pub-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding: var(--s-4) 0;
  color: var(--bone);
  transition: color .2s;
}
.pub-link:hover { color: var(--orange); }
.pub-link span { font-size: 15px; line-height: 1.4; }

/* ============================================================
   TEAM — extended carousel (cream section)
   ============================================================ */
.team-extended {
  max-width: 1200px;
  margin: var(--s-10) auto 0;
  padding-top: var(--s-7);
  border-top: 1px solid color-mix(in oklab, var(--ink-900) 20%, var(--cream));
}
.team-extended-head {
  display: grid;
  gap: var(--s-2);
  margin-bottom: var(--s-6);
  max-width: 62ch;
}
#team .team-extended-head .meta { color: var(--orange); }
.team-extended-head p {
  color: var(--team-muted);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.65;
  margin: 0;
}
.team-extended-viewport {
  overflow: hidden;
}
.team-extended-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(260px, 1fr);
  gap: var(--s-4);
  transition: transform .6s var(--ease-out);
}
@media (min-width: 720px) { .team-extended-track { grid-auto-columns: minmax(0, calc((100% - 2 * var(--s-4)) / 3)); } }
@media (min-width: 1100px) { .team-extended-track { grid-auto-columns: minmax(0, calc((100% - 3 * var(--s-4)) / 4)); } }

.team-extended-card {
  background: var(--team-surface);
  border: 1px solid var(--team-border);
  padding: var(--s-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  gap: var(--s-2);
}
.team-extended-email { display: none; }
.team-extended-photo {
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 50%;
  background: color-mix(in oklab, var(--bone) 10%, var(--team-bg));
  border: 1px solid var(--team-border);
  margin: 0 auto var(--s-3);
  max-width: 140px;
}
.team-extended-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 50% var(--focus-y, 22%);
  transform: scale(var(--zoom, 1.15));
  transform-origin: 50% 30%;
  filter: grayscale(0.15) contrast(1.05) saturate(0.9);
}
.team-extended-card { text-align: center; }
.team-extended-email { margin-left: auto; margin-right: auto; }
.team-extended-name {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--team-text);
}
.team-extended-role {
  font-family: var(--ff-body);
  font-size: 13px;
  letter-spacing: 0;
  color: var(--orange);
}
.team-extended-bio {
  color: var(--team-muted);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.65;
  margin: var(--s-2) 0 0;
}
.team-extended-email {
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.01em;
  color: var(--ink-900);
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  align-self: start;
  margin-top: var(--s-2);
}
.team-extended-nav {
  display: flex;
  justify-content: flex-end;
  gap: var(--s-2);
  margin-top: var(--s-5);
}
#team .team-extended-nav .carousel-btn {
  border-color: var(--team-border);
  color: var(--team-text);
}
#team .team-extended-nav .carousel-btn:hover {
  background: var(--bone);
  color: var(--ink-900);
  border-color: var(--bone);
}
#team .team-extended-nav .carousel-btn:disabled {
  opacity: 0.3; cursor: not-allowed;
}
.legal-page ul { margin: var(--s-3) 0; padding-left: var(--s-4); list-style: disc; }