:root {
    /* Background system - warm whites with subtle purple/mint washes */
    --bg: #FBFAF6;
    --bg-2: #F2EEE7;
    --bg-violet: #F4EFFB;
    --bg-mint: #ECF7F1;

    /* Surfaces and borders */
    --surface: rgba(22, 22, 22, 0.025);
    --border: #DBD7CF;
    --border-strong: #C2BCB0;

    /* Type */
    --ink: #161616;
    --ink-2: rgba(22, 22, 22, 0.72);
    --ink-3: rgba(22, 22, 22, 0.50);
    --ink-4: rgba(22, 22, 22, 0.28);

    /* Primary brand accent — confident, saturated violet */
    --violet: #5E4BC6;
    --violet-deep: #4538A8;
    --violet-soft: #D5CCF2;
    --violet-glow: rgba(94, 75, 198, 0.16);

    /* Secondary accent — mint green (true mint, vibrant on cream) */
    --mint: #4FAF8F;
    --mint-soft: #C8E3D7;
    --mint-glow: rgba(79, 175, 143, 0.16);

    /* Live/active status signal */
    --live: #4FAF8F;
    --live-glow: rgba(79, 175, 143, 0.30);
  }

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

  body {
    font-family: 'Geist', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--ink);
    font-weight: 400;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    position: relative;
  }

  /* ─── ATMOSPHERIC BACKGROUND ─── */
  .ambient {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
  }

  .ambient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(110px);
    opacity: 0.32;
    animation: drift 14s ease-in-out infinite;
  }

  .orb-1 {
    width: 700px; height: 700px;
    background: radial-gradient(circle, var(--violet-glow), transparent 70%);
    top: -25%; left: -10%;
    animation-delay: 0s;
  }

  .orb-2 {
    width: 560px; height: 560px;
    background: radial-gradient(circle, var(--mint-glow), transparent 70%);
    top: 35%; right: -15%;
    animation-delay: -4.5s;
    opacity: 0.32;
  }

  .orb-3 {
    width: 800px; height: 800px;
    background: radial-gradient(circle, var(--violet-glow), transparent 70%);
    bottom: -25%; left: 25%;
    animation-delay: -9s;
    opacity: 0.32;
  }

  @keyframes drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(120px, -80px) scale(1.08); }
    66% { transform: translate(-90px, 100px) scale(0.94); }
  }

  /* ─── TYPE ─── */
  .display {
    font-family: 'Newsreader', Georgia, serif;
    font-weight: 300;
    letter-spacing: -0.025em;
    line-height: 1.0;
    font-variation-settings: "opsz" 60;
  }

  .display em {
    font-style: italic;
    font-weight: 300;
    color: var(--violet);
    font-variation-settings: "opsz" 60;
  }

  .mono {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-3);
    font-weight: 500;
  }

  /* ─── NAV ─── */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 24px 48px;
    transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
    border-bottom: 1px solid transparent;
  }

  nav.scrolled {
    background: rgba(251, 250, 246, 0.78);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom-color: var(--border);
  }

  .nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .logo {
    font-family: 'Newsreader', serif;
    font-weight: 400;
    font-size: 22px;
    letter-spacing: -0.01em;
    color: var(--ink);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 11px;
    font-variation-settings: "opsz" 24;
  }

  .logo-dot {
    width: 7px; height: 7px;
    background: var(--live);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--live-glow);
    animation: pulse 2.5s ease-in-out infinite;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.55; transform: scale(0.82); }
  }

  .nav-links {
    display: flex;
    gap: 28px;
    align-items: center;
  }

  .nav-links a {
    color: var(--ink-2);
    text-decoration: none;
    font-size: 13px;
    font-weight: 450;
    transition: color 0.25s;
    white-space: nowrap;
  }

  .nav-links a:hover { color: var(--violet); }

  .nav-cta {
    background: var(--ink);
    color: var(--bg);
    padding: 11px 22px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.25s;
  }

  .nav-cta:hover {
    background: var(--violet) !important;
    color: white !important;
  }

  /* ─── LAYOUT ─── */
  main { position: relative; z-index: 2; }

  section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 140px 48px;
    position: relative;
  }

  .section-head {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 48px;
  }

  .section-head::before {
    content: '';
    width: 28px; height: 1px;
    background: var(--violet);
  }

  .section-num { color: var(--violet); font-weight: 500; }

  .section-title {
    font-size: clamp(44px, 5.5vw, 84px);
    max-width: 1000px;
    margin-bottom: 32px;
  }

  .section-intro {
    font-size: 18px;
    color: var(--ink-2);
    max-width: 680px;
    line-height: 1.6;
  }

  /* ─── HERO ─── */
  .hero {
    min-height: 100vh;
    padding: 180px 48px 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
  }

  .hero-status {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 100px;
    background: rgba(255,255,255,0.5);
    margin-bottom: 56px;
    width: fit-content;
    backdrop-filter: blur(20px);
  }

  .hero-status-dot {
    width: 6px; height: 6px;
    background: var(--live);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--live);
    animation: pulse 2s ease-in-out infinite;
  }

  .hero-status span {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--ink);
  }

  .hero h1 {
    font-size: clamp(48px, 7vw, 104px);
    max-width: 1300px;
    margin-bottom: 40px;
    color: var(--ink);
  }

  /* Subheadline — the explanatory paragraph under the headline */
  .hero-subhead {
    font-size: clamp(17px, 1.5vw, 22px);
    line-height: 1.5;
    color: var(--ink-2);
    max-width: 760px;
    margin-bottom: 56px;
    font-weight: 400;
  }

  /* Three supporting points — clean 3-column row with mint dot indicators */
  .hero-points {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1100px;
    margin-bottom: 56px;
    padding-top: 36px;
    padding-bottom: 8px;
    border-top: 1px solid var(--border);
  }

  .hero-points li {
    font-size: 14px;
    line-height: 1.55;
    color: var(--ink);
    position: relative;
    padding-left: 22px;
    font-weight: 450;
  }

  .hero-points li::before {
    content: '';
    width: 6px; height: 6px;
    background: var(--mint);
    box-shadow: 0 0 10px var(--mint-glow);
    border-radius: 50%;
    position: absolute;
    top: 7px;
    left: 0;
  }

  /* CTA buttons */
  .hero-cta-row {
    display: flex;
    gap: 28px;
    align-items: center;
    flex-wrap: wrap;
  }

  .cta-primary {
    background: var(--violet);
    color: white;
    padding: 17px 32px;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.01em;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.2,0.7,0.2,1);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 24px var(--violet-glow);
    position: relative;
    overflow: hidden;
  }

  .cta-primary:hover {
    background: var(--violet-deep);
    transform: translateY(-2px);
    box-shadow: 0 10px 36px var(--violet-glow);
  }

  .cta-secondary {
    color: var(--ink);
    padding: 17px 4px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.01em;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: gap 0.3s, color 0.3s;
  }

  .cta-secondary:hover {
    color: var(--violet);
    gap: 18px;
  }

  .cta-secondary svg {
    transition: transform 0.3s;
  }

  .cta-secondary:hover svg {
    transform: translateX(3px);
  }

  /* Subtle scroll cue — sits beside the primary CTA */
  .scroll-cue {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink-3);
    text-decoration: none;
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 500;
    padding: 17px 4px;
    transition: color 0.3s;
  }

  .scroll-cue svg {
    animation: scroll-bob 2.2s ease-in-out infinite;
    color: var(--violet);
  }

  .scroll-cue:hover {
    color: var(--ink);
  }

  @keyframes scroll-bob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(3px); }
  }

  /* Hero accent — organic floating particles, no orbital structure */
  .hero-particles {
    position: absolute;
    top: 50%;
    right: 40px;
    transform: translateY(-30%);
    width: 480px;
    height: 480px;
    pointer-events: none;
    opacity: 0.95;
  }

  .hero-particle {
    position: absolute;
    border-radius: 50%;
    animation: float-particle 14s ease-in-out infinite;
  }

  .p1 {
    width: 240px; height: 240px;
    background: radial-gradient(circle at 35% 30%, var(--violet) 0%, var(--violet-deep) 60%, transparent 90%);
    opacity: 0.85;
    top: 60px; right: 80px;
    filter: blur(0.5px);
    box-shadow: 0 0 80px var(--violet-glow), inset 0 0 60px rgba(255,255,255,0.4);
    animation-delay: 0s;
  }

  .p2 {
    width: 120px; height: 120px;
    background: radial-gradient(circle at 35% 30%, #2CCB91 0%, var(--mint) 60%, transparent 90%);
    opacity: 0.78;
    top: 280px; right: 220px;
    box-shadow: 0 0 50px var(--mint-glow), inset 0 0 30px rgba(255,255,255,0.5);
    animation-delay: -3s;
  }

  .p3 {
    width: 64px; height: 64px;
    background: radial-gradient(circle at 35% 30%, var(--violet-soft) 0%, var(--violet) 80%, transparent 100%);
    opacity: 0.7;
    top: 30px; right: 320px;
    box-shadow: 0 0 30px var(--violet-glow);
    animation-delay: -7s;
  }

  .p4 {
    width: 40px; height: 40px;
    background: radial-gradient(circle at 35% 30%, var(--mint-soft) 0%, var(--mint) 80%, transparent 100%);
    opacity: 0.65;
    top: 360px; right: 60px;
    box-shadow: 0 0 24px var(--mint-glow);
    animation-delay: -10s;
  }

  @keyframes float-particle {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(-14px, -22px); }
    50% { transform: translate(18px, 12px); }
    75% { transform: translate(-8px, 18px); }
  }

  /* ─── PROBLEM ─── */
  .problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 80px;
  }

  .problem-item {
    padding: 40px 32px;
    background: rgba(255,255,255,0.55);
    border: 1px solid var(--border);
    border-radius: 4px;
    backdrop-filter: blur(20px);
    position: relative;
  }

  .problem-item-num {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    color: var(--ink-3);
    letter-spacing: 0.15em;
    margin-bottom: 36px;
  }

  .problem-stat {
    font-family: 'Newsreader', serif;
    font-weight: 200;
    font-size: 68px;
    color: var(--violet);
    line-height: 0.95;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
    font-variation-settings: "opsz" 60;
  }

  .problem-item h3 {
    font-family: 'Newsreader', serif;
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 14px;
    letter-spacing: -0.01em;
    line-height: 1.2;
    color: var(--ink);
  }

  .problem-item p {
    font-size: 14px;
    color: var(--ink-2);
    line-height: 1.6;
  }

  .problem-statement {
    margin-top: 100px;
    padding-top: 56px;
    border-top: 1px solid var(--border);
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 56px;
    align-items: start;
  }

  .problem-statement-label {
    padding-top: 14px;
    color: var(--violet) !important;
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .problem-statement-label::before {
    content: '';
    width: 24px; height: 1px;
    background: var(--violet);
  }

  .problem-statement-text {
    font-family: 'Newsreader', serif;
    font-weight: 600;
    font-style: italic;
    font-size: clamp(28px, 3vw, 44px);
    line-height: 1.25;
    color: var(--violet);
    letter-spacing: -0.015em;
    max-width: 1000px;
    font-variation-settings: "opsz" 60;
  }

  /* ─── TECHNOLOGY ─── */
  .tech-showcase {
    margin-top: 80px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: rgba(255,255,255,0.55);
    backdrop-filter: blur(20px);
    overflow: hidden;
    position: relative;
  }

  /* The visual panel — soft particle cluster, not radar/orbital */
  .tech-showcase-visual {
    height: 360px;
    position: relative;
    border-bottom: 1px solid var(--border);
    background:
      radial-gradient(ellipse at 30% 50%, rgba(109,79,224,0.10), transparent 60%),
      radial-gradient(ellipse at 70% 50%, rgba(14,165,114,0.08), transparent 60%);
    overflow: hidden;
  }

  .scan-line {
    position: absolute;
    top: 0; bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, transparent, var(--violet), transparent);
    box-shadow: 0 0 18px var(--violet), 0 0 36px var(--violet-glow);
    animation: scan 5s cubic-bezier(0.65,0,0.35,1) infinite;
    opacity: 0.85;
  }

  @keyframes scan {
    0% { left: 0%; opacity: 0; }
    10% { opacity: 0.85; }
    50% { left: 100%; opacity: 0.85; }
    50.01% { opacity: 0; }
    100% { left: 100%; opacity: 0; }
  }

  /* Particle cluster in the tech panel */
  .tech-particles {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .tech-particle {
    position: absolute;
    border-radius: 50%;
    animation: float-particle 11s ease-in-out infinite;
  }

  .tp1 {
    width: 160px; height: 160px;
    background: radial-gradient(circle at 35% 30%, var(--violet) 0%, var(--violet-deep) 60%, transparent 90%);
    box-shadow: 0 0 60px var(--violet-glow), inset 0 0 40px rgba(255,255,255,0.4);
    left: 38%; top: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.85;
    animation-delay: 0s;
  }

  .tp2 {
    width: 90px; height: 90px;
    background: radial-gradient(circle at 35% 30%, #2CCB91 0%, var(--mint) 60%, transparent 90%);
    box-shadow: 0 0 40px var(--mint-glow), inset 0 0 24px rgba(255,255,255,0.5);
    left: 60%; top: 40%;
    transform: translate(-50%, -50%);
    opacity: 0.75;
    animation-delay: -4s;
  }

  .tp3 {
    width: 36px; height: 36px;
    background: radial-gradient(circle at 35% 30%, var(--violet-soft) 0%, var(--violet) 80%);
    box-shadow: 0 0 20px var(--violet-glow);
    left: 30%; top: 70%;
    transform: translate(-50%, -50%);
    opacity: 0.7;
    animation-delay: -7s;
  }

  .tp4 {
    width: 28px; height: 28px;
    background: radial-gradient(circle at 35% 30%, var(--mint-soft) 0%, var(--mint) 80%);
    box-shadow: 0 0 16px var(--mint-glow);
    left: 68%; top: 65%;
    transform: translate(-50%, -50%);
    opacity: 0.7;
    animation-delay: -2s;
  }

  .tech-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
  }

  .tech-feature {
    padding: 40px 32px;
    border-right: 1px solid var(--border);
    position: relative;
  }

  .tech-feature:last-child { border-right: none; }

  .tech-feature-num {
    font-family: 'Geist Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--violet);
    margin-bottom: 24px;
    font-weight: 500;
  }

  .tech-feature h4 {
    font-family: 'Newsreader', serif;
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
    line-height: 1.2;
    color: var(--ink);
  }

  .tech-feature p {
    font-size: 14px;
    color: var(--ink-2);
    line-height: 1.6;
  }

  /* Clinical applications strip */
  .tech-applications {
    border-top: 1px solid var(--border);
    padding: 32px 40px;
    display: grid;
    grid-template-columns: 230px 1fr;
    gap: 48px;
    align-items: center;
    background: var(--bg-mint);
  }

  .tech-applications-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--mint);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
  }

  .tech-applications-label::before {
    content: '';
    width: 24px; height: 1px;
    background: var(--mint);
  }

  .tech-applications-list {
    display: flex;
    gap: 36px;
    flex-wrap: wrap;
    font-family: 'Newsreader', serif;
    font-size: 18px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.01em;
  }

  .tech-applications-list span {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .tech-applications-list span::before {
    content: '';
    width: 5px; height: 5px;
    background: var(--mint);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--mint-glow);
  }

  /* ─── WHY NOW ─── */
  .why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 80px;
  }

  .why-item {
    padding: 48px 40px;
    background: rgba(255,255,255,0.5);
    border: 1px solid var(--border);
    border-radius: 4px;
    backdrop-filter: blur(20px);
  }

  /* ─── UNIFIED CARD HOVER ─── */
  /* All hoverable cards share the same glow + border + background treatment. */
  .problem-item,
  .application-item,
  .market-card,
  .team-member,
  .contact-category,
  .contact-channel,
  .why-item {
    position: relative;
    overflow: hidden;
    transition: border-color 0.4s, background 0.4s;
  }

  .problem-item::before,
  .application-item::before,
  .market-card::before,
  .team-member::before,
  .contact-category::before,
  .contact-channel::before,
  .why-item::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, var(--violet-glow), transparent 65%);
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
    z-index: 0;
  }

  .problem-item:hover::before,
  .application-item:hover::before,
  .market-card:hover::before,
  .team-member:hover::before,
  .contact-category:hover::before,
  .contact-channel:hover::before,
  .why-item:hover::before {
    opacity: 1;
  }

  /* Unified hover state — border + background lighten (matches Market Timing) */
  .problem-item:hover,
  .application-item:hover,
  .market-card:hover,
  .team-member:hover,
  .contact-category:hover,
  .contact-channel:hover,
  .why-item:hover {
    border-color: var(--violet);
    background: rgba(255,255,255,0.7);
  }

  /* Metro-tile cards (no per-card borders) — give them an inset rim on hover to match */
  .application-item:hover,
  .contact-category:hover {
    box-shadow: inset 0 0 0 1.5px var(--violet);
  }

  /* Keep card content above the glow */
  .problem-item > *,
  .application-item > *,
  .market-card > *,
  .team-member > *,
  .contact-category > *,
  .contact-channel > *,
  .why-item > * {
    position: relative;
    z-index: 1;
  }

  .why-item h4, .why-item p { position: relative; }

  .why-item-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--violet);
    margin-bottom: 26px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
  }

  .why-item-label::before {
    content: '';
    width: 24px; height: 1px;
    background: var(--violet);
  }

  .why-item h4 {
    font-family: 'Newsreader', serif;
    font-weight: 400;
    font-size: 30px;
    line-height: 1.15;
    letter-spacing: -0.015em;
    margin-bottom: 20px;
    max-width: 480px;
    color: var(--ink);
    position: relative;
  }

  .why-item p {
    font-size: 15px;
    color: var(--ink-2);
    line-height: 1.65;
    max-width: 480px;
    position: relative;
  }

  /* ─── EVIDENCE ─── */
  .evidence-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    margin-top: 80px;
  }

  .evidence-card {
    padding: 40px 0;
    border-top: 1px solid var(--border-strong);
    position: relative;
  }

  .evidence-card-icon {
    width: 44px; height: 44px;
    margin-bottom: 36px;
    color: var(--violet);
    filter: drop-shadow(0 0 8px var(--violet-glow));
  }

  .evidence-card h4 {
    font-family: 'Newsreader', serif;
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 14px;
    letter-spacing: -0.01em;
    line-height: 1.2;
    color: var(--ink);
  }

  .evidence-card p {
    font-size: 14px;
    color: var(--ink-2);
    line-height: 1.65;
  }

  /* ─── CLINICAL APPLICATIONS ─── */
  .applications-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    margin-top: 80px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
  }

  .application-item {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    padding: 48px 44px;
    position: relative;
  }

  .application-marker,
  .card-marker {
    width: 36px;
    height: 1px;
    background: var(--mint);
    margin-bottom: 32px;
    box-shadow: 0 0 4px var(--mint-glow);
  }

  .application-item h4 {
    font-family: 'Newsreader', serif;
    font-weight: 400;
    font-size: 30px;
    letter-spacing: -0.015em;
    line-height: 1.15;
    margin-bottom: 16px;
    color: var(--ink);
    font-variation-settings: "opsz" 60;
  }

  .application-item p {
    font-size: 15px;
    color: var(--ink-2);
    line-height: 1.6;
    max-width: 460px;
  }

  /* ─── SCIENCE ─── */
  .science-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 80px;
    margin-top: 80px;
    align-items: start;
  }

  .science-prose {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }

  .science-body {
    font-size: 17px;
    line-height: 1.65;
    color: var(--ink-2);
    max-width: 540px;
  }

  .science-capabilities {
    background: rgba(255,255,255,0.55);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 32px;
    backdrop-filter: blur(20px);
  }

  .science-capabilities-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--violet);
    font-weight: 500;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
  }

  .science-capability-list { list-style: none; }

  .science-capability-list li {
    font-family: 'Newsreader', serif;
    font-size: 16.5px;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--ink);
    padding: 11px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 18px;
    font-variation-settings: "opsz" 60;
  }

  .science-capability-list li:last-child { border-bottom: none; }

  .science-capability-list li::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--mint);
    box-shadow: 0 0 4px var(--mint-glow);
    flex-shrink: 0;
  }

  .science-num {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    color: var(--violet);
    font-weight: 500;
    letter-spacing: 0.05em;
    min-width: 24px;
  }

  /* ─── INVESTORS ─── */
  .investors-thesis {
    margin-top: 80px;
    padding: 48px 56px;
    background: rgba(255,255,255,0.6);
    border: 1px solid var(--border);
    border-left: 2px solid var(--violet);
    border-radius: 4px;
    backdrop-filter: blur(20px);
  }

  .investors-thesis-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--violet);
    font-weight: 500;
    margin-bottom: 22px;
  }

  .investors-thesis-text {
    font-family: 'Newsreader', serif;
    font-weight: 300;
    font-size: clamp(24px, 2.6vw, 36px);
    line-height: 1.3;
    letter-spacing: -0.015em;
    color: var(--ink);
    font-variation-settings: "opsz" 60;
    max-width: 980px;
  }

  .investors-thesis-text em {
    font-style: italic;
    color: var(--violet);
    font-weight: 400;
  }

  /* Chapter labels within Investors */
  .investors-chapter {
    margin-top: 120px;
  }

  .investors-chapter-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--violet);
    font-weight: 500;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .investors-chapter-label::before {
    content: '';
    width: 28px; height: 1px;
    background: var(--violet);
  }

  .investors-chapter h3 {
    font-family: 'Newsreader', serif;
    font-weight: 400;
    font-size: clamp(28px, 3vw, 44px);
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: 28px;
    max-width: 880px;
    font-variation-settings: "opsz" 60;
  }

  .investors-chapter h3 em {
    font-style: italic;
    color: var(--violet);
  }

  .investors-chapter-intro {
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink-2);
    max-width: 680px;
    margin-bottom: 40px;
  }

  /* Market Size — TAM/SAM/SOM */
  .market-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .market-card {
    padding: 40px 32px;
    background: rgba(255,255,255,0.55);
    border: 1px solid var(--border);
    border-radius: 4px;
    backdrop-filter: blur(20px);
  }

  .market-card-tier {
    font-family: 'Geist Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 24px;
    font-weight: 500;
  }

  .market-card-figure {
    font-family: 'Newsreader', serif;
    font-weight: 200;
    font-size: clamp(48px, 5vw, 72px);
    color: var(--violet);
    line-height: 0.95;
    margin-bottom: 22px;
    letter-spacing: -0.03em;
    font-variation-settings: "opsz" 60;
  }

  .market-card-label {
    font-family: 'Newsreader', serif;
    font-size: 18px;
    font-weight: 400;
    color: var(--ink);
    margin-bottom: 6px;
    letter-spacing: -0.01em;
  }

  .market-card-note {
    font-size: 13px;
    color: var(--ink-3);
    line-height: 1.55;
  }

  /* Why Now drivers — condensed */
  .timing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
  }

  .timing-item {
    padding-top: 4px;
  }

  .timing-item-num {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    color: var(--violet);
    letter-spacing: 0.1em;
    margin-bottom: 18px;
    font-weight: 500;
  }

  .timing-item h4 {
    font-family: 'Newsreader', serif;
    font-size: 19px;
    font-weight: 400;
    letter-spacing: -0.01em;
    line-height: 1.2;
    margin-bottom: 10px;
    color: var(--ink);
  }

  .timing-item p {
    font-size: 13px;
    color: var(--ink-2);
    line-height: 1.55;
  }

  /* Milestones — checklist */
  .milestones-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 48px;
  }

  .milestones-list li {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 18px 0;
    border-bottom: 1px solid var(--border);
    font-size: 16px;
    color: var(--ink);
    line-height: 1.5;
  }

  .milestone-check {
    flex-shrink: 0;
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--mint-soft);
    display: grid;
    place-items: center;
    margin-top: 2px;
    box-shadow: 0 0 12px var(--mint-glow);
  }

  .milestone-check svg { color: var(--mint); }

  /* Development Roadmap — horizontal timeline */
  .roadmap {
    position: relative;
    margin-top: 48px;
  }

  .roadmap-line {
    position: absolute;
    top: 11px; left: 0; right: 0;
    height: 1px;
    background: var(--border-strong);
  }

  .roadmap-line-active {
    position: absolute;
    top: 11px; left: 0;
    height: 1px;
    width: 25%;
    background: linear-gradient(to right, var(--live), transparent);
    box-shadow: 0 0 12px var(--live-glow);
  }

  .roadmap-stages {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
  }

  .roadmap-stage {
    position: relative;
  }

  .roadmap-dot {
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--bg);
    display: grid;
    place-items: center;
    margin-bottom: 32px;
    position: relative;
    z-index: 1;
  }

  .roadmap-dot-inner {
    width: 7px; height: 7px;
    background: var(--ink-4);
    border-radius: 50%;
  }

  .roadmap-stage.active .roadmap-dot-inner {
    background: var(--live);
    box-shadow: 0 0 10px var(--live), 0 0 22px var(--live-glow);
  }

  .roadmap-stage.active::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 22px; height: 22px;
    border: 1px solid var(--live);
    border-radius: 50%;
    opacity: 0.4;
    animation: ripple 2.5s ease-out infinite;
  }

  .roadmap-year {
    font-family: 'Geist Mono', monospace;
    font-size: 12px;
    color: var(--violet);
    letter-spacing: 0.04em;
    margin-bottom: 8px;
    font-weight: 500;
  }

  .roadmap-stage.future .roadmap-year { color: var(--ink-3); }

  .roadmap-name {
    font-family: 'Newsreader', serif;
    font-size: 22px;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin-bottom: 12px;
    line-height: 1.15;
  }

  .roadmap-stage.future .roadmap-name { color: var(--ink-2); }

  .roadmap-detail {
    font-size: 13px;
    color: var(--ink-3);
    line-height: 1.55;
  }

  /* IP Overview — 3 cards */
  .ip-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
  }

  .ip-card {
    padding-top: 28px;
    border-top: 1px solid var(--border-strong);
  }

  .ip-card-icon {
    width: 36px; height: 36px;
    margin-bottom: 28px;
    color: var(--violet);
    filter: drop-shadow(0 0 8px var(--violet-glow));
  }

  .ip-card h4 {
    font-family: 'Newsreader', serif;
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
    line-height: 1.2;
    color: var(--ink);
  }

  .ip-card p {
    font-size: 14px;
    color: var(--ink-2);
    line-height: 1.6;
  }

  /* Partnership Strategy — keep two columns */
  .investors-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
  }

  .investors-col {
    padding-top: 28px;
    border-top: 1px solid var(--border-strong);
  }

  .investors-col-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--violet);
    font-weight: 500;
    margin-bottom: 28px;
  }

  .investors-list { list-style: none; }

  .investors-list li {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    font-family: 'Newsreader', serif;
    font-size: 19px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.01em;
  }

  .investors-list li:last-child { border-bottom: none; }

  /* Downloadable Deck — prominent CTA block */
  .deck-cta {
    margin-top: 120px;
    padding: 64px 56px;
    background: linear-gradient(135deg, rgba(109,79,224,0.10), rgba(14,165,114,0.08));
    border: 1px solid var(--border);
    border-radius: 4px;
    backdrop-filter: blur(20px);
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: center;
  }

  .deck-cta-content {
    max-width: 640px;
  }

  .deck-cta-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--violet);
    margin-bottom: 18px;
    font-weight: 500;
  }

  .deck-cta-headline {
    font-family: 'Newsreader', serif;
    font-weight: 400;
    font-size: clamp(26px, 2.8vw, 38px);
    line-height: 1.2;
    letter-spacing: -0.015em;
    color: var(--ink);
    margin-bottom: 14px;
    font-variation-settings: "opsz" 60;
  }

  .deck-cta-headline em {
    font-style: italic;
    color: var(--violet);
  }

  .deck-cta-sub {
    font-size: 15px;
    color: var(--ink-2);
    line-height: 1.55;
  }

  /* ─── CONTACT (expanded with routing) ─── */
  .contact-categories {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    margin-top: 64px;
    margin-bottom: 80px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    z-index: 1;
  }

  .contact-category {
    background: rgba(255, 255, 255, 0.92);
    padding: 36px 40px;
    backdrop-filter: blur(20px);
    text-decoration: none;
    color: inherit;
    display: block;
    position: relative;
  }

  .contact-category:hover .contact-category-arrow {
    transform: translate(4px, -4px);
    color: var(--violet);
  }

  .contact-category-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--violet);
    margin-bottom: 14px;
    font-weight: 500;
  }

  .contact-category h4 {
    font-family: 'Newsreader', serif;
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin-bottom: 12px;
    line-height: 1.2;
  }

  .contact-category p {
    font-size: 14px;
    color: var(--ink-2);
    line-height: 1.55;
    max-width: 380px;
  }

  .contact-category-arrow {
    position: absolute;
    top: 36px; right: 36px;
    color: var(--ink-3);
    transition: all 0.3s;
  }

  /* Contact channels — bottom row with email + LinkedIn */
  .contact-channels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    position: relative;
    z-index: 1;
  }

  .contact-channel {
    padding: 32px 36px;
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(20px);
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }

  .contact-channel:hover .contact-channel-value { color: var(--violet); }

  .contact-channel-label {
    font-family: 'Geist Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 6px;
    font-weight: 500;
  }

  .contact-channel-value {
    font-family: 'Geist', sans-serif;
    font-size: 17px;
    font-weight: 500;
    color: var(--ink);
    letter-spacing: -0.005em;
    transition: color 0.25s;
  }

  .contact-channel-icon {
    color: var(--violet);
    flex-shrink: 0;
  }

  /* ─── TEAM ─── */
  .team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 80px;
  }

  .team-member {
    background: rgba(255,255,255,0.55);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 40px 36px;
    backdrop-filter: blur(20px);
  }

  .team-avatar {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--violet), var(--mint));
    display: grid;
    place-items: center;
    font-family: 'Newsreader', serif;
    font-size: 19px;
    font-weight: 500;
    color: white;
    margin-bottom: 32px;
    box-shadow: 0 4px 20px var(--violet-glow);
  }

  .team-member h4 {
    font-family: 'Newsreader', serif;
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.01em;
    margin-bottom: 6px;
    color: var(--ink);
  }

  .team-role {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--violet);
    margin-bottom: 28px;
    font-weight: 500;
  }

  .team-bio-prose {
    font-size: 14px;
    color: var(--ink-2);
    line-height: 1.65;
  }

  .team-bio { list-style: none; }

  .team-bio li {
    font-size: 13px;
    color: var(--ink-2);
    line-height: 1.6;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
  }

  .team-bio li:last-child { border-bottom: none; }

  /* ─── ADVISORS / NETWORK ─── */
  .advisor-cols {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 64px;
  }

  .advisor-cols-3 { grid-template-columns: repeat(3, 1fr); }

  @media (max-width: 1024px) and (min-width: 901px) {
    .advisor-cols-3 { grid-template-columns: repeat(2, 1fr); }
  }

  .advisor-col {
    background: rgba(255,255,255,0.55);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 40px 36px;
    backdrop-filter: blur(20px);
  }

  .advisor-col-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--violet);
    margin-bottom: 24px;
    font-weight: 500;
  }

  .advisor-list { list-style: none; }

  .advisor-list li {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
  }

  .advisor-list li:last-child { border-bottom: none; }

  .advisor-name {
    font-size: 15px;
    font-weight: 500;
    color: var(--ink);
  }

  .advisor-affil {
    font-size: 13px;
    color: var(--ink-3);
    line-height: 1.5;
  }

  /* ─── LinkedIn inline icon links ─── */
  .li-link {
    display: inline-flex;
    align-items: center;
    color: var(--ink-4);
    transition: color 0.2s;
    vertical-align: middle;
    margin-left: 7px;
  }
  .li-link:hover { color: var(--violet); }
  .li-link svg { width: 14px; height: 14px; display: block; }
  .team-member h4 .li-link svg { width: 16px; height: 16px; }

  /* ─── BACKED BY ─── */
  .backed {
    padding: 80px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-violet);
    position: relative;
    overflow: hidden;
  }

  .backed-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 48px;
  }

  .backed-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 44px;
    display: flex;
    align-items: center;
    gap: 14px;
    font-weight: 500;
  }

  .backed-label::before {
    content: '';
    width: 24px; height: 1px;
    background: var(--ink-3);
  }

  .backed-marquee-wrap {
    overflow: hidden;
    position: relative;
    mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
  }

  .backed-marquee {
    display: flex;
    gap: 80px;
    align-items: center;
    animation: marquee 45s linear infinite;
    width: max-content;
  }

  @keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
  }

  .backed-item {
    font-family: 'Newsreader', serif;
    font-size: 26px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.01em;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 80px;
    text-decoration: none;
    transition: color 0.25s;
    position: relative;
  }

  .backed-item:hover {
    color: var(--violet);
  }

  .backed-item::after {
    content: '';
    width: 4px; height: 4px;
    background: var(--violet);
    border-radius: 50%;
    opacity: 0.4;
  }

  /* ─── CONTACT ─── */
  .contact {
    padding: 180px 48px;
    position: relative;
    overflow: hidden;
  }

  .contact-inner {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
  }

  .contact-glow {
    position: absolute;
    top: -20%; right: -20%;
    width: 900px; height: 900px;
    background: radial-gradient(circle, var(--violet-glow), transparent 60%);
    filter: blur(80px);
    pointer-events: none;
    opacity: 0.6;
  }

  .contact h2 {
    font-size: clamp(56px, 8vw, 120px);
    margin-bottom: 40px;
    max-width: 1300px;
    position: relative;
    z-index: 1;
    color: var(--ink);
  }

  .contact-intro {
    margin-bottom: 64px;
    position: relative;
    z-index: 1;
  }

  .contact-card {
    max-width: 560px;
    border: 1px solid var(--border-strong);
    padding: 48px;
    border-radius: 4px;
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(20px);
    position: relative;
    z-index: 1;
    transition: all 0.3s;
  }

  .contact-card:hover {
    border-color: var(--violet);
    background: rgba(255,255,255,0.9);
  }

  .contact-card-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 18px;
    font-weight: 500;
  }

  .contact-card-name {
    font-family: 'Newsreader', serif;
    font-size: 32px;
    font-weight: 400;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
    color: var(--ink);
  }

  .contact-card-role {
    font-size: 14px;
    color: var(--ink-2);
    margin-bottom: 36px;
  }

  .contact-email {
    font-family: 'Geist', sans-serif;
    font-size: 17px;
    color: var(--violet);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 14px;
    transition: gap 0.3s;
    font-weight: 500;
    letter-spacing: -0.005em;
  }

  .contact-email:hover { gap: 22px; }
  .contact-email svg { transition: transform 0.3s; }
  .contact-email:hover svg { transform: translateX(4px); }

  /* ─── FOOTER ─── */
  footer {
    padding: 80px 48px 56px;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 2;
  }

  .footer-inner {
    max-width: 1400px;
    margin: 0 auto;
  }

  .footer-statement {
    font-family: 'Newsreader', serif;
    font-weight: 300;
    font-style: italic;
    font-size: clamp(24px, 2.6vw, 36px);
    line-height: 1.25;
    color: var(--ink);
    letter-spacing: -0.015em;
    max-width: 820px;
    margin-bottom: 56px;
    font-variation-settings: "opsz" 60;
  }

  .footer-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
  }

  .footer-left {
    font-family: 'Newsreader', serif;
    font-size: 18px;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 11px;
  }

  .footer-right {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--ink-3);
  }

  /* ─── SCROLL REVEAL ─── */
  .reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 1s cubic-bezier(0.2, 0.7, 0.2, 1),
                transform 1s cubic-bezier(0.2, 0.7, 0.2, 1);
  }

  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* ─── HERO ENTRANCE ─── */
  @keyframes hero-rise {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .hero-status, .hero h1, .hero-subhead, .hero-points, .hero-cta-row {
    animation: hero-rise 1.1s cubic-bezier(0.2,0.7,0.2,1) both;
  }
  .hero-status { animation-delay: 0.15s; }
  .hero h1 { animation-delay: 0.3s; }
  .hero-subhead { animation-delay: 0.5s; }
  .hero-points { animation-delay: 0.7s; }
  .hero-cta-row { animation-delay: 0.9s; }


  /* ─── Mobile menu — hamburger toggle ─── */
  .nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    flex-direction: column;
    gap: 5px;
    width: 40px;
    height: 40px;
    justify-content: center;
    align-items: center;
    margin-left: auto;
  }

  .hamburger-line {
    width: 22px;
    height: 1.5px;
    background: var(--ink);
    transition: transform 0.3s, opacity 0.3s;
    border-radius: 1px;
  }

  .nav-toggle.open .hamburger-line:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
  }
  .nav-toggle.open .hamburger-line:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.open .hamburger-line:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
  }

  /* ─── RESPONSIVE ─── */
  @media (max-width: 900px) {
    nav { padding: 16px 24px; }
    .nav-toggle { display: flex; }
    .nav-links {
      display: none;
      position: fixed;
      top: 64px;
      left: 0;
      right: 0;
      background: rgba(251, 250, 246, 0.98);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      padding: 28px 24px 36px;
      flex-direction: column;
      gap: 0;
      border-bottom: 1px solid var(--border);
      box-shadow: 0 8px 24px rgba(22, 22, 22, 0.06);
    }
    .nav-links.open { display: flex; }
    .nav-links a {
      font-size: 16px;
      padding: 14px 4px;
      border-bottom: 1px solid var(--border);
      width: 100%;
    }
    .nav-links a:last-of-type { border-bottom: none; }
    .nav-links a.nav-cta {
      background: var(--violet);
      color: white;
      border: none;
      border-radius: 100px;
      padding: 12px 24px;
      margin-top: 16px;
      text-align: center;
      align-self: flex-start;
    }
    section { padding: 80px 24px; }
    .hero { padding: 120px 24px 60px; }
    .hero-meta-row, .problem-grid, .tech-features, .evidence-grid,
    .team-grid, .why-grid, .hero-points, .applications-grid,
    .science-grid, .market-grid, .timing-grid, .milestones-list,
    .roadmap-stages, .ip-grid, .investors-grid, .contact-categories,
    .contact-channels, .problem-statement, .advisor-cols { grid-template-columns: 1fr; }
    .problem-statement { gap: 20px; padding-top: 40px; margin-top: 64px; }
    .problem-statement-label { padding-top: 0; }
    .timing-grid { gap: 24px; }
    .science-capabilities { padding: 28px; }
    .investors-thesis { padding: 32px 28px; }
    .investors-chapter { margin-top: 80px; }
    .deck-cta { grid-template-columns: 1fr; padding: 36px 28px; gap: 28px; }
    .roadmap-line, .roadmap-line-active { display: none; }
    .contact-category { padding: 28px; }
    .contact-channel { padding: 24px 28px; }
    .hero-points { gap: 16px; padding-top: 28px; }
    .hero-cta-row { gap: 20px; flex-direction: column; align-items: flex-start; }
    .cta-primary { width: 100%; justify-content: center; }
    .hero-particles { display: none; }
    .tech-feature { border-right: none; border-bottom: 1px solid var(--border); }
    .tech-feature:last-child { border-bottom: none; }
    .tech-applications { grid-template-columns: 1fr; gap: 24px; padding: 28px 24px; }
    .tech-applications-list { gap: 20px; font-size: 16px; }
    .backed-inner { padding: 0 24px; }
    .contact { padding: 100px 24px; }
    .contact-card { padding: 32px; }
    footer { padding: 40px 24px; }
  }

  /* ─── Multi-page additions ─── */

  /* Active nav state for current page */
  .nav-links a[aria-current="page"] {
    color: var(--violet);
  }

  /* Page header (small hero on subpages) */
  .page-header {
    padding: 180px 0 80px;
    position: relative;
    z-index: 1;
  }

  .page-header-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 40px;
  }

  .page-header-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--violet);
    margin-bottom: 28px;
    display: block;
  }

  .page-header-title {
    font-family: 'Newsreader', serif;
    font-weight: 500;
    font-size: clamp(48px, 5.5vw, 72px);
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: var(--ink);
    max-width: 950px;
    margin: 0 0 32px;
    font-variation-settings: "opsz" 72;
  }

  .page-header-title em {
    font-style: italic;
    color: var(--violet);
    font-weight: 500;
  }

  .page-header-subtitle {
    font-family: 'Newsreader', serif;
    font-weight: 300;
    font-style: italic;
    font-size: clamp(20px, 1.6vw, 24px);
    line-height: 1.45;
    color: var(--ink-2);
    max-width: 720px;
    font-variation-settings: "opsz" 32;
  }

  /* Reduce top padding on the first section after page-header (no double-padding) */
  .page-header + section {
    padding-top: 40px !important;
  }

  /* Continue Exploring section */
  .explore-section {
    padding: 100px 0 120px;
    border-top: 1px solid var(--border);
  }

  .explore-section-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 40px;
  }

  .explore-section-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--violet);
    margin-bottom: 32px;
  }

  .explore-section h3 {
    font-family: 'Newsreader', serif;
    font-weight: 500;
    font-size: clamp(28px, 3vw, 40px);
    line-height: 1.15;
    color: var(--ink);
    max-width: 700px;
    margin: 0 0 56px;
    letter-spacing: -0.02em;
    font-variation-settings: "opsz" 60;
  }

  .explore-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
  }

  .explore-card {
    display: block;
    padding: 36px 28px;
    background: rgba(255,255,255,0.55);
    border: 1px solid var(--border);
    border-radius: 14px;
    text-decoration: none;
    color: var(--ink);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
  }

  .explore-card::before {
    content: '';
    position: absolute;
    top: -140px; right: -140px;
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, var(--violet-glow), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
  }

  .explore-card:hover {
    border-color: var(--violet);
    background: rgba(255,255,255,0.7);
  }

  .explore-card:hover::before { opacity: 1; }

  .explore-card > * { position: relative; z-index: 1; }

  .explore-card-label {
    font-family: 'Geist Mono', monospace;
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--violet);
    margin-bottom: 14px;
  }

  .explore-card h4 {
    font-family: 'Newsreader', serif;
    font-weight: 500;
    font-size: 22px;
    line-height: 1.25;
    color: var(--ink);
    margin: 0 0 12px;
    font-variation-settings: "opsz" 32;
  }

  .explore-card p {
    font-size: 13.5px;
    line-height: 1.55;
    color: var(--ink-3);
    margin: 0 0 18px;
  }

  .explore-card-arrow {
    font-family: 'Geist Mono', monospace;
    font-size: 12px;
    color: var(--violet);
    letter-spacing: 0.05em;
  }


  /* ─── Footer additions (legal, disclaimer, jurisdiction) ─── */
  .footer-disclaimer {
    font-size: 12px;
    color: var(--ink-3);
    line-height: 1.55;
    max-width: 760px;
    margin: 24px 0 0;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    font-style: italic;
    font-family: 'Newsreader', serif;
    font-variation-settings: "opsz" 14;
  }

  .footer-legal {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px 32px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--ink-3);
    font-family: 'Geist', sans-serif;
  }

  .footer-legal-left {
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .footer-jurisdiction {
    margin-left: 4px;
    color: var(--ink-3);
  }

  .footer-legal-links {
    display: flex;
    gap: 28px;
  }

  .footer-legal-links a {
    color: var(--ink-3);
    text-decoration: none;
    transition: color 0.25s;
  }

  .footer-legal-links a:hover {
    color: var(--violet);
  }

  .footer-legal-right {
    color: var(--ink-3);
  }

  /* Hide the old meta row since we replaced it */
  .footer-meta { display: none; }

  @media (max-width: 720px) {
    .footer-legal {
      flex-direction: column;
      align-items: flex-start;
    }
    .footer-legal-links {
      gap: 18px;
      flex-wrap: wrap;
    }
  }


  /* ─── Legal pages (Privacy Notice, Terms of Use, Cookie Policy) ─── */
  .legal-page {
    padding: 160px 0 100px;
    position: relative;
    z-index: 1;
  }

  .legal-page-inner {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 40px;
  }

  .legal-page-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--violet);
    margin-bottom: 24px;
    display: block;
  }

  .legal-page h1 {
    font-family: 'Newsreader', serif;
    font-weight: 500;
    font-size: clamp(40px, 5vw, 60px);
    line-height: 1.08;
    color: var(--ink);
    margin: 0 0 20px;
    letter-spacing: -0.025em;
    font-variation-settings: "opsz" 72;
  }

  .legal-updated {
    font-family: 'Geist Mono', monospace;
    font-size: 12px;
    color: var(--ink-3);
    letter-spacing: 0.04em;
    margin-bottom: 56px;
    padding-bottom: 36px;
    border-bottom: 1px solid var(--border);
  }

  .legal-intro {
    font-family: 'Newsreader', serif;
    font-weight: 300;
    font-style: italic;
    font-size: 21px;
    line-height: 1.5;
    color: var(--ink-2);
    margin-bottom: 56px;
    font-variation-settings: "opsz" 32;
  }

  .legal-page h2 {
    font-family: 'Newsreader', serif;
    font-weight: 500;
    font-size: 26px;
    line-height: 1.25;
    color: var(--ink);
    margin: 56px 0 18px;
    letter-spacing: -0.01em;
    font-variation-settings: "opsz" 32;
  }

  .legal-page h2:first-of-type { margin-top: 0; }

  .legal-page h3 {
    font-family: 'Geist', sans-serif;
    font-weight: 500;
    font-size: 16px;
    color: var(--ink);
    margin: 28px 0 10px;
    letter-spacing: -0.005em;
  }

  .legal-page p {
    font-family: 'Geist', sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--ink-2);
    margin: 0 0 16px;
  }

  .legal-page ul,
  .legal-page ol {
    font-family: 'Geist', sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--ink-2);
    padding-left: 20px;
    margin: 0 0 16px;
  }

  .legal-page li {
    margin-bottom: 10px;
  }

  .legal-page li::marker {
    color: var(--violet);
  }

  .legal-page a {
    color: var(--violet);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2.5px;
  }

  .legal-page a:hover {
    color: var(--violet-deep);
  }

  .legal-page strong {
    color: var(--ink);
    font-weight: 500;
  }

  .legal-contact {
    margin-top: 56px;
    padding: 32px 36px;
    background: rgba(255,255,255,0.55);
    border: 1px solid var(--border);
    border-radius: 14px;
  }

  .legal-contact p { margin: 0; }


  /* ─── Platform & IP page ─── */
  .platform-page {
    padding: 30px 0 100px;
    position: relative;
    z-index: 1;
  }

  .platform-page-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 40px;
  }

  .platform-block {
    max-width: 880px;
    margin-bottom: 96px;
  }

  .platform-block:last-child {
    margin-bottom: 0;
  }

  .platform-lead {
    font-family: 'Newsreader', serif;
    font-weight: 400;
    font-size: clamp(20px, 2.1vw, 26px);
    line-height: 1.5;
    color: var(--ink);
    margin: 0 0 36px;
    font-variation-settings: "opsz" 32;
    letter-spacing: -0.005em;
  }

  .platform-heading {
    font-family: 'Newsreader', serif;
    font-weight: 500;
    font-size: clamp(28px, 3.4vw, 44px);
    line-height: 1.15;
    color: var(--ink);
    margin: 0 0 36px;
    letter-spacing: -0.02em;
    font-variation-settings: "opsz" 60;
  }

  .platform-heading em {
    font-style: italic;
    color: var(--violet);
    font-weight: 500;
  }

  .platform-body {
    font-family: 'Geist', sans-serif;
    font-size: 16.5px;
    font-weight: 400;
    line-height: 1.7;
    color: var(--ink-2);
    margin: 0 0 28px;
  }

  .platform-body:last-child {
    margin-bottom: 0;
  }

  .platform-list {
    list-style: none;
    padding: 0;
    margin: 0 0 36px;
  }

  .platform-list li {
    font-family: 'Newsreader', serif;
    font-size: 20px;
    font-weight: 400;
    line-height: 1.4;
    color: var(--ink);
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 18px;
    font-variation-settings: "opsz" 32;
  }

  .platform-list li:last-child {
    border-bottom: none;
  }

  .platform-list li::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--mint);
    box-shadow: 0 0 4px var(--mint-glow);
    flex-shrink: 0;
  }

  .platform-closer {
    font-family: 'Newsreader', serif;
    font-weight: 500;
    font-style: italic;
    font-size: clamp(22px, 2.4vw, 30px);
    line-height: 1.4;
    color: var(--violet);
    margin: 40px 0 0;
    padding: 36px 0 0;
    border-top: 1px solid var(--border);
    font-variation-settings: "opsz" 32;
    letter-spacing: -0.005em;
  }


  /* ─── Platform & IP positioning (uses standard section pattern) ─── */
  .platform-content {
    max-width: 900px;
    margin-top: 56px;
  }

  .platform-body-text {
    font-family: 'Geist', sans-serif;
    font-size: 16.5px;
    line-height: 1.7;
    color: var(--ink-2);
    margin: 0 0 32px;
  }

  .platform-closer-text {
    font-family: 'Newsreader', serif;
    font-weight: 500;
    font-style: italic;
    font-size: clamp(22px, 2.2vw, 28px);
    line-height: 1.4;
    color: var(--violet);
    padding-top: 36px;
    border-top: 1px solid var(--border);
    margin: 0;
    letter-spacing: -0.005em;
    font-variation-settings: "opsz" 32;
  }

  


  /* ─── Return-to-overview CTA (replaces Continue Exploring on investors page) ─── */
  .return-section {
    padding: 80px 0 120px;
    border-top: 1px solid var(--border);
  }

  .return-section-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 40px;
  }

  .return-link {
    display: inline-flex;
    align-items: center;
    gap: 20px;
    text-decoration: none;
    color: var(--ink);
    padding: 28px 32px 28px 24px;
    background: rgba(255,255,255,0.55);
    border: 1px solid var(--border);
    border-radius: 14px;
    transition: all 0.3s;
  }

  .return-link:hover {
    border-color: var(--violet);
    background: rgba(255,255,255,0.75);
  }

  .return-arrow {
    font-family: 'Geist Mono', monospace;
    font-size: 28px;
    color: var(--violet);
    line-height: 1;
  }

  .return-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  .return-label {
    font-family: 'Geist Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--violet);
  }

  .return-title {
    font-family: 'Newsreader', serif;
    font-weight: 500;
    font-size: 20px;
    color: var(--ink);
    font-variation-settings: "opsz" 32;
    letter-spacing: -0.01em;
  }


  /* ─── Dual-field hero gradient (CT violet ← → MRI mint) ─── */
  /* Single deliberate hero-only visual statement representing dual-modality convergence. */
  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse 70% 90% at 20% 50%, rgba(94, 75, 198, 0.16), transparent 70%),
      radial-gradient(ellipse 70% 90% at 80% 50%, rgba(79, 175, 143, 0.14), transparent 70%);
    pointer-events: none;
    z-index: 0;
  }

  /* Ensure all hero content sits above the gradient */
  .hero > * {
    position: relative;
    z-index: 1;
  }


  /* Metro-tile cards: override hover bg to pure white (rest is 0.92 white-on-grey-grid) */
  .application-item:hover,
  .contact-category:hover {
    background: rgba(255, 255, 255, 1);
  }