:root {
    --navy: #1B2A5E;
    --navy-deep: #121d44;
    --gold: #C8960C;
    --gold-light: #F6DC8C;
    --white: #FFFFFF;
    --ivory: #FBF8F0;
    --ink: #1c2233;
    --muted: #5a6275;
    --line: #e6e1d3;
    --serif: "Times New Roman", Times, serif;
    --sans: "Times New Roman", Times, serif;
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 92px; }
  body, h1, h2, h3, .brand span, .stat b { font-variant-numeric: lining-nums; }
  body { margin: 0; font-family: var(--sans); color: var(--ink); background: var(--white); line-height: 1.6; font-size: 19px; }
  img { max-width: 100%; display: block; }
  a { color: inherit; }
  .wrap { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

  /* Header */
  header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.95); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
  .nav { display: flex; align-items: center; justify-content: space-between; height: 84px; }
  .brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
  .brand img { width: 54px; height: auto; }
  .brand span { font-family: var(--serif); font-size: 1.5rem; font-weight: 700; color: var(--navy); letter-spacing: .06em; }
  .nav ul { list-style: none; display: flex; gap: 10px; margin: 0; padding: 0; align-items: center; }
  .nav ul a { display: inline-block; text-decoration: none; font-size: 1.2rem; font-weight: 600; color: var(--navy); padding: 10px 14px; border-radius: 4px; }
  .nav ul a:not(.cta-sm):hover { background: var(--ivory); }
  .nav ul a:hover { color: var(--gold); }
  .nav .cta-sm { background: var(--navy); color: var(--white); padding: 10px 22px; border-radius: 4px; margin-left: 6px; }
  .nav .cta-sm:hover { background: var(--gold); color: var(--white); }

  /* Type */
  .eyebrow { display: inline-block; font-size: .88rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--gold); margin-bottom: 16px; }
  h1, h2, h3 { font-family: var(--serif); color: var(--navy); line-height: 1.15; margin: 0; }
  h1 { font-size: clamp(2.3rem, 4.8vw, 3.5rem); font-weight: 600; }
  h1 em, h2 em { font-style: normal; color: var(--gold); }
  .btns { display: flex; gap: 14px; flex-wrap: wrap; }
  .btn { display: inline-block; padding: 14px 28px; border-radius: 4px; font-weight: 600; font-size: 1.05rem; text-decoration: none; transition: all .2s; }
  .btn-primary { background: var(--navy); color: var(--white); }
  .btn-primary:hover { background: var(--gold); }
  .btn-outline { border: 1.5px solid var(--gold); color: var(--navy); }
  .btn-outline:hover { background: var(--gold-light); }

  /* Hero */
  .hero { background: var(--white); padding: 76px 0 68px; border-bottom: 3px solid var(--gold); }
  .hero .wrap { display: grid; grid-template-columns: 1.2fr .8fr; gap: 56px; align-items: center; }
  .lead { font-size: 1.25rem; color: var(--muted); margin: 22px 0 32px; max-width: 600px; }
  .hero-logo { max-width: 400px; justify-self: center; }
  .h1-line { display: block; }
  .h1-line + .h1-line { margin-top: .35em; }

  /* Stats */
  .stats { background: var(--navy); color: var(--white); }
  .stats .wrap { display: grid; grid-template-columns: repeat(4, 1fr); }
  .stat { padding: 34px 22px; text-align: center; border-right: 1px solid rgba(246,220,140,.18); }
  .stat:last-child { border-right: none; }
  .stat b { display: block; font-family: var(--serif); font-size: 2.3rem; color: var(--gold-light); font-weight: 600; line-height: 1.1; }
  .stat span { font-size: 1.05rem; color: #c9cfe0; }

  /* Sections */
  section { padding: 96px 0; }
  .section-head { margin-bottom: 50px; }
  .section-head > p { max-width: 760px; }
  .section-head h2 { font-size: clamp(1.9rem, 3.2vw, 2.35rem); font-weight: 600; }
  .section-head p { color: var(--muted); font-size: 1.2rem; margin: 16px 0 0; }
  .rule { width: 56px; height: 2px; background: var(--gold); margin: 18px 0 0; }
  .alt { background: var(--ivory); }

  /* Difference: compare */
  .compare { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
  .col { border-radius: 6px; padding: 32px; }
  .col.them { background: var(--white); border: 1px solid var(--line); }
  .col.us { background: var(--navy); color: var(--white); }
  .col .label { font-size: .88rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
  .col.us .label { color: var(--gold-light); }
  .col h3 { font-size: 1.6rem; margin: 8px 0 16px; }
  .col.us h3 { color: var(--white); }
  .col ul { margin: 0; padding-left: 20px; }
  .col li { margin-bottom: 8px; }
  .col.them li { color: var(--muted); }
  .col.us li { color: #dfe3ee; }
  .col.us li::marker { color: var(--gold-light); }

  /* Evidence findings */
  .evidence { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: center; }
  .evidence .copy p { color: var(--ink); margin: 0 0 16px; }
  .evidence .copy .note { font-size: 1rem; color: var(--muted); }
  .findings { display: grid; gap: 16px; }
  .finding { background: var(--white); border: 1px solid var(--line); border-left: 4px solid var(--gold); border-radius: 6px; padding: 22px 26px; }
  .finding .k { font-size: .85rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }
  .finding h3 { font-size: 1.35rem; margin: 6px 0 6px; }
  .finding p { margin: 0; color: var(--muted); font-size: 1.1rem; }

  /* Impact across domains */
  .impact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .dom { border: 1px solid var(--line); border-radius: 6px; padding: 26px; background: var(--white); }
  .dom h3 { font-size: 1.35rem; margin-bottom: 8px; }
  .dom .why { font-size: .85rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--gold); margin-bottom: 6px; }
  .dom p { margin: 0; color: var(--muted); font-size: 1.1rem; }
  .thread { margin-top: 36px; background: var(--navy); color: var(--white); border-radius: 6px; padding: 30px 34px; display: grid; grid-template-columns: auto 1fr; gap: 24px; align-items: center; }
  .thread b { font-family: var(--serif); font-size: 1.7rem; color: var(--gold-light); font-weight: 600; white-space: nowrap; }
  .thread p { margin: 0; color: #dfe3ee; }
  .thread small { display: block; margin-top: 8px; color: #9ea8c6; font-size: .98rem; }

  /* Mathematics */
  .math { background: var(--navy-deep); background-image: radial-gradient(circle at 10% 90%, rgba(200,150,12,.10), transparent 45%); color: var(--white); }
  .math .section-head h2 { color: var(--white); }
  .math .section-head p { color: #c9cfe0; }
  .math-top { display: grid; grid-template-columns: 1fr; gap: 36px; margin-bottom: 48px; }
  .math-fig { background: var(--white); border-radius: 8px; padding: 14px; border-bottom: 4px solid var(--gold); max-width: 920px; width: 100%; justify-self: center; }
  .math-fig video { width: 100%; height: auto; aspect-ratio: 2000 / 1280; display: block; border-radius: 4px; }
  .math-fig figcaption { font-size: .98rem; color: var(--muted); margin-top: 6px; text-align: center; }
  .math-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .mp { border: 1px solid rgba(246,220,140,.22); border-radius: 6px; padding: 26px; background: rgba(255,255,255,.03); }
  .mp .n { font-family: var(--serif); font-size: 1.9rem; color: var(--gold); line-height: 1; }
  .mp h3 { color: var(--gold-light); font-size: 1.35rem; margin: 10px 0 8px; }
  .mp p { color: #dfe3ee; font-size: 1.1rem; margin: 0; }
  .why-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 44px; }
  .why-row div { border-top: 2px solid var(--gold); padding-top: 14px; }
  .why-row b { display: block; font-family: var(--serif); font-size: 1.4rem; color: var(--white); font-weight: 600; }
  .why-row span { color: #c9cfe0; font-size: 1.05rem; }
  .math-cta { margin-top: 40px; text-align: center; }
  .math-cta .btn-outline { color: var(--gold-light); border-color: var(--gold-light); }
  .math-cta .btn-outline:hover { background: var(--gold-light); color: var(--navy); }

  /* Proven vs next */
  .status-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
  .status { border: 1px solid var(--line); border-radius: 6px; padding: 32px; background: var(--white); }
  .status h3 { font-size: 1.55rem; margin-bottom: 18px; display: flex; align-items: center; gap: 10px; }
  .dot { width: 12px; height: 12px; border-radius: 50%; background: var(--gold); display: inline-block; }
  .dot.hollow { background: transparent; border: 2px solid var(--gold); }
  .status ul { list-style: none; margin: 0; padding: 0; }
  .status li { padding: 12px 0; border-top: 1px solid var(--line); }
  .status li b { color: var(--navy); }
  .status li span { display: block; color: var(--muted); font-size: 1.08rem; }
  .honest { margin-top: 28px; padding: 22px 26px; border-left: 3px solid var(--gold); background: var(--ivory); font-size: 1.12rem; }
  .honest b { color: var(--navy); }

  /* Technology */
  .tech { background: var(--navy-deep); background-image: radial-gradient(circle at 85% 10%, rgba(200,150,12,.12), transparent 45%); color: var(--white); }
  .tech .section-head h2 { color: var(--white); }
  .tech .section-head p { color: #c9cfe0; }
  .tech-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .sys { border: 1px solid rgba(246,220,140,.22); border-radius: 6px; padding: 28px; background: rgba(255,255,255,.03); }
  .sys-top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
  .sys h3 { color: var(--gold-light); font-size: 1.6rem; }
  .tag { font-size: .8rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--navy); background: var(--gold-light); padding: 4px 10px; border-radius: 20px; white-space: nowrap; }
  .tag.dev { background: transparent; color: var(--gold-light); border: 1px solid var(--gold-light); }
  .sys .kind { font-size: .9rem; color: #9ea8c6; text-transform: uppercase; letter-spacing: .1em; margin: 6px 0 12px; }
  .sys p { color: #dfe3ee; font-size: 1.1rem; margin: 0; }

  /* Venues strip */
  .venues { border-bottom: 1px solid var(--line); padding: 30px 0; background: var(--white); }
  .venues .wrap { display: flex; align-items: center; gap: 12px 34px; flex-wrap: wrap; justify-content: center; }
  .venues .lbl { font-size: .88rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }
  .venues .v { font-family: var(--serif); font-size: 1.3rem; font-weight: 600; color: var(--navy); opacity: .8; }

  /* Publications */
  .pub-groups { display: grid; gap: 44px; }
  .pub-group h3 { font-size: 1.6rem; margin-bottom: 6px; }
  .pub-group > p { color: var(--muted); margin: 0 0 16px; font-size: 1.1rem; }
  .pubs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .pub { background: var(--white); border: 1px solid var(--line); border-radius: 6px; padding: 22px 24px; display: flex; flex-direction: column; gap: 8px; }
  .pub .t { font-weight: 600; color: var(--navy); line-height: 1.4; }
  .pub .m { font-size: 1rem; color: var(--muted); }
  .pub .b { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: auto; padding-top: 4px; }
  .badge { font-size: .8rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; padding: 3px 9px; border-radius: 20px; background: var(--gold-light); color: var(--navy); }
  .badge.soft { background: var(--ivory); border: 1px solid var(--line); color: var(--muted); }
  .pub a.read { font-size: 1.02rem; font-weight: 600; color: var(--gold); text-decoration: none; margin-left: auto; }
  .pub a.read:hover { text-decoration: underline; }

  /* Founder */
  .founder .wrap { display: grid; grid-template-columns: 300px 1fr; gap: 60px; align-items: start; }
  .portrait { width: 100%; aspect-ratio: 4/5; object-fit: cover; object-position: center 30%; border-radius: 6px; border-bottom: 4px solid var(--gold); box-shadow: 0 14px 34px rgba(27,42,94,.14); }
  .founder .role { color: var(--gold); font-weight: 600; font-size: 1.08rem; margin: 8px 0 18px; }
  .founder p { margin: 0 0 16px; }
  .honors { list-style: none; padding: 0; margin: 22px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 26px; }
  .honors li { padding-left: 26px; position: relative; font-size: 1.1rem; }
  .honors li::before { content: "✦"; position: absolute; left: 0; color: var(--gold); }

  /* Company data + contact */
  .contact .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: start; }
  .contact-list { display: grid; gap: 14px; margin: 26px 0 30px; }
  .cc { border: 1px solid var(--line); border-radius: 6px; padding: 18px 22px; background: var(--white); }
  .cc .label { font-size: .85rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }
  .cc a, .cc div.v { display: block; margin-top: 4px; font-size: 1.15rem; color: var(--navy); font-weight: 500; text-decoration: none; word-break: break-word; }
  .cc a:hover { color: var(--gold); }
  .data-card { background: var(--navy); color: var(--white); border-radius: 6px; padding: 34px; }
  .data-card h3 { color: var(--gold-light); font-size: 1.6rem; margin-bottom: 18px; }
  .data-card dl { display: grid; grid-template-columns: auto 1fr; gap: 12px 22px; margin: 0; }
  .data-card dt { font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; color: #9ea8c6; padding-top: 4px; }
  .data-card dd { margin: 0; font-weight: 500; }
  .data-card small { display: block; color: #c9cfe0; font-weight: 400; font-size: .98rem; }

  footer { background: var(--navy-deep); color: #9ea8c6; font-size: 1rem; padding: 36px 0; }
  footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
  footer b { color: var(--gold-light); font-family: var(--serif); font-size: 1.15rem; letter-spacing: .05em; }

  @media (max-width: 900px) {
    .hero-logo { max-width: 240px; order: -1; }
    .math-grid { grid-template-columns: 1fr; }
    .why-row { grid-template-columns: 1fr 1fr; }
    .thread { grid-template-columns: 1fr; }
    .thread b { white-space: normal; }
    .hero .wrap, .evidence, .contact .wrap, .founder .wrap { grid-template-columns: 1fr; gap: 40px; }
    .stats .wrap { grid-template-columns: repeat(2, 1fr); }
    .stat:nth-child(2) { border-right: none; }
    .compare, .status-grid, .tech-grid, .pubs, .honors, .impact-grid { grid-template-columns: 1fr; }
    .portrait { max-width: 260px; }
    section { padding: 72px 0; }
  }

  /* Multi-page additions */
  .nav ul a.active { color: var(--gold); box-shadow: inset 0 -3px 0 var(--gold); border-radius: 4px 4px 0 0; }
  .nav ul a.cta-sm.active { color: var(--white); box-shadow: none; background: var(--gold); border-radius: 4px; }
  .menu-toggle { display: none; background: none; border: 1.5px solid var(--navy); color: var(--navy); border-radius: 4px; padding: 8px 14px; font: inherit; font-size: 1rem; font-weight: 600; cursor: pointer; }
  .page-hero { background: var(--ivory); padding: 72px 0 60px; border-bottom: 3px solid var(--gold); }
  .page-hero h1 { font-size: clamp(2.2rem, 4.2vw, 3.1rem); max-width: 980px; }
  .page-hero .lead { margin: 20px 0 0; max-width: 780px; }
  .cards3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
  .pcard { display: flex; flex-direction: column; gap: 10px; text-decoration: none; background: var(--white); border: 1px solid var(--line); border-top: 4px solid var(--gold); border-radius: 6px; padding: 30px 28px; transition: transform .2s, box-shadow .2s; }
  .pcard:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(27,42,94,.10); }
  .pcard .k { font-size: .85rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }
  .pcard h3 { font-size: 1.55rem; }
  .pcard p { margin: 0; color: var(--muted); font-size: 1.1rem; }
  .pcard .go { margin-top: auto; padding-top: 8px; color: var(--navy); font-weight: 600; }
  .cta-band { background: var(--navy); color: var(--white); padding: 72px 0; }
  .cta-band .wrap { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
  .cta-band h2 { color: var(--white); font-size: clamp(1.9rem, 3.2vw, 2.35rem); }
  .cta-band p { color: #c9cfe0; margin: 10px 0 0; font-size: 1.15rem; max-width: 640px; }
  .cta-band .btn-primary { background: var(--gold); }
  .cta-band .btn-primary:hover { background: var(--gold-light); color: var(--navy); }
  .foot-nav { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 10px; }
  .foot-nav a { color: #c9cfe0; text-decoration: none; }
  .foot-nav a:hover { color: var(--gold-light); }
  @media (max-width: 1060px) {
    .menu-toggle { display: inline-block; }
    .nav ul { display: none; position: absolute; top: 84px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--white); border-bottom: 3px solid var(--gold); box-shadow: 0 14px 30px rgba(27,42,94,.12); padding: 8px 24px 18px; }
    header.open .nav ul { display: flex; }
    .nav ul li a { display: block; padding: 16px 4px; border-bottom: 1px solid var(--line); font-size: 1.25rem; border-radius: 0; }
    .nav ul a.active { box-shadow: none; }
    .nav ul li a.cta-sm { margin: 14px 0 0; text-align: center; border-bottom: none; padding: 16px 0; border-radius: 4px; }
    .cards3 { grid-template-columns: 1fr; }
    .page-hero { padding: 52px 0 44px; }
  }

  /* Bottom page navigation */
  .page-nav { background: var(--ivory); border-top: 1px solid var(--line); padding: 44px 0 50px; }
  .pn-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
  .pn-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
  .pn-btn { display: block; text-align: center; text-decoration: none; font-size: 1.2rem; font-weight: 600; color: var(--navy); background: var(--white); border: 1.5px solid var(--navy); border-radius: 4px; padding: 16px 10px; transition: all .2s; }
  .pn-btn:hover { background: var(--navy); color: var(--white); }
  .pn-btn.current { background: var(--gold-light); border-color: var(--gold); color: var(--navy); cursor: default; }
  .pn-next { background: var(--gold); font-size: 1.15rem; }
  .pn-next:hover { background: var(--navy); }
  @media (max-width: 900px) {
    .pn-row { grid-template-columns: 1fr 1fr; }
    .pn-next { width: 100%; text-align: center; }
  }