:root {
      --bg: #0B0D0F;
      --bg-raised: #101316;
      --surface: #15181C;
      --surface-2: #1A1E23;
      --border: rgba(242, 241, 236, 0.09);
      --border-strong: rgba(242, 241, 236, 0.16);
      --text-primary: #F2F1EC;
      --text-secondary: #A7ACB0;
      --text-tertiary: #6E7377;
      --brass: #C4A063;
      --brass-dim: #8A754A;
      --sage: #6E8F82;
      --sage-dim: #3E5049;

      --serif: 'Fraunces', Georgia, serif;
      --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      --mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;

      --container: 1180px;
      --radius-s: 6px;
      --radius-m: 12px;
      --ease: cubic-bezier(0.16, 1, 0.3, 1);
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--bg);
      color: var(--text-primary);
      font-family: var(--sans);
      font-size: 16px;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    ul {
      list-style: none;
    }

    button {
      font-family: inherit;
      cursor: pointer;
    }

    :focus-visible {
      outline: 2px solid var(--brass);
      outline-offset: 3px;
    }

    .container {
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 32px;
    }

    @media (max-width: 640px) {
      .container {
        padding: 0 20px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
      }
    }

    /* background grain / texture */
    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: 999;
      opacity: 0.025;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    }

    /* eyebrow / label */
    .eyebrow {
      font-family: var(--mono);
      font-size: 12px;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--brass);
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .eyebrow::before {
      content: "";
      width: 16px;
      height: 1px;
      background: var(--brass);
    }

    .section-heading {
      font-family: var(--serif);
      font-weight: 500;
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.15;
      letter-spacing: -0.01em;
      color: var(--text-primary);
    }

    .section-tag {
      display: flex;
      align-items: baseline;
      gap: 18px;
      margin-bottom: 20px;
    }

    .section-tag .index {
      font-family: var(--mono);
      font-size: 12px;
      color: var(--text-tertiary);
      letter-spacing: 0.1em;
    }

    .section {
      padding: 120px 0;
      border-top: 1px solid var(--border);
      position: relative;
    }

    @media (max-width: 780px) {
      .section {
        padding: 80px 0;
      }
    }

    .lede {
      color: var(--text-secondary);
      font-size: 17px;
      max-width: 640px;
      line-height: 1.7;
    }

    /* ============================================================
   NAVIGATION
   ============================================================ */
    .nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(11, 13, 15, 0.72);
      backdrop-filter: blur(14px) saturate(140%);
      -webkit-backdrop-filter: blur(14px) saturate(140%);
      border-bottom: 1px solid var(--border);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

    .brand {
      font-family: var(--serif);
      font-weight: 600;
      font-size: 21px;
      letter-spacing: 0.01em;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .brand-mark {
      width: 22px;
      height: 22px;
      flex-shrink: 0;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 40px;
    }

    .nav-links a {
      font-size: 14.5px;
      color: var(--text-secondary);
      transition: color 0.2s var(--ease);
      position: relative;
    }

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

    .nav-links a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 0;
      height: 1px;
      background: var(--brass);
      transition: width 0.25s var(--ease);
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 18px;
      border: 1px solid var(--border-strong);
      border-radius: var(--radius-s);
      font-size: 13.5px;
      font-weight: 500;
      color: var(--text-primary);
      transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
    }

    .nav-cta:hover {
      border-color: var(--brass);
      background: rgba(196, 160, 99, 0.08);
    }

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

    .nav-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-strong);
      border-radius: var(--radius-s);
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
    }

    .nav-toggle span,
    .nav-toggle span::before,
    .nav-toggle span::after {
      content: "";
      display: block;
      width: 16px;
      height: 1.5px;
      background: var(--text-primary);
      position: relative;
      transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
    }

    .nav-toggle span::before {
      position: absolute;
      top: -5px;
    }

    .nav-toggle span::after {
      position: absolute;
      top: 5px;
    }

    .nav-toggle.open span {
      background: transparent;
    }

    .nav-toggle.open span::before {
      top: 0;
      transform: rotate(45deg);
    }

    .nav-toggle.open span::after {
      top: 0;
      transform: rotate(-45deg);
    }

    .mobile-menu {
      display: none;
      flex-direction: column;
      gap: 4px;
      padding: 8px 0 24px;
      border-top: 1px solid var(--border);
    }

    .mobile-menu a {
      padding: 14px 4px;
      font-size: 15px;
      color: var(--text-secondary);
      border-bottom: 1px solid var(--border);
    }

    .mobile-menu .nav-cta {
      margin-top: 14px;
      text-align: center;
      justify-content: center;
    }

    @media (max-width: 860px) {
      .nav-links {
        display: none;
      }

      .nav-cta {
        display: none;
      }

      .nav-toggle {
        display: flex;
      }

      .mobile-menu.open {
        display: flex;
      }
    }

    /* ============================================================
   HERO
   ============================================================ */
    .hero {
      padding: 100px 0 110px;
      position: relative;
      overflow: hidden;
    }

    .hero-inner {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 60px;
      align-items: center;
    }

    @media (max-width: 900px) {
      .hero-inner {
        grid-template-columns: 1fr;
        gap: 56px;
      }
    }

    .hero-eyebrow {
      margin-bottom: 26px;
    }

    .hero h1 {
      font-family: var(--serif);
      font-weight: 500;
      font-size: clamp(38px, 5.4vw, 66px);
      line-height: 1.06;
      letter-spacing: -0.015em;
      color: var(--text-primary);
      max-width: 640px;
    }

    .hero-lede {
      margin-top: 26px;
      font-size: 18px;
      line-height: 1.7;
      color: var(--text-secondary);
      max-width: 520px;
    }

    .hero-ctas {
      display: flex;
      gap: 16px;
      margin-top: 40px;
      flex-wrap: wrap;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 14px 24px;
      border-radius: var(--radius-s);
      font-size: 14.5px;
      font-weight: 500;
      transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
    }

    .btn-primary {
      background: var(--text-primary);
      color: var(--bg);
    }

    .btn-primary:hover {
      transform: translateY(-1px);
      background: var(--brass);
    }

    .btn-secondary {
      border: 1px solid var(--border-strong);
      color: var(--text-primary);
    }

    .btn-secondary:hover {
      border-color: var(--brass);
      color: var(--brass);
    }

    .btn-arrow {
      transition: transform 0.2s var(--ease);
    }

    .btn:hover .btn-arrow {
      transform: translateX(3px);
    }

    /* Hero signature mark: layered infrastructure planes */
    .hero-mark {
      position: relative;
      height: 420px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .layer-stack {
      width: 100%;
      max-width: 380px;
    }

    .layer {
      border: 1px solid var(--border-strong);
      border-radius: var(--radius-m);
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0));
      padding: 20px 24px;
      margin-bottom: -1px;
      opacity: 0;
      transform: translateY(14px);
      animation: layerIn 0.8s var(--ease) forwards;
    }

    .layer:nth-child(1) {
      animation-delay: 0.15s;
    }

    .layer:nth-child(2) {
      animation-delay: 0.32s;
      margin-left: 20px;
      margin-right: -20px;
    }

    .layer:nth-child(3) {
      animation-delay: 0.49s;
      margin-left: 40px;
      margin-right: -40px;
    }

    @keyframes layerIn {
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .layer-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .layer-label {
      font-family: var(--mono);
      font-size: 12px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--text-secondary);
    }

    .layer-ref {
      font-family: var(--mono);
      font-size: 11px;
      color: var(--text-tertiary);
    }

    .layer-name {
      font-family: var(--serif);
      font-size: 20px;
      margin-top: 8px;
      color: var(--text-primary);
    }

    .layer:nth-child(1) {
      border-color: rgba(196, 160, 99, 0.35);
    }

    .layer:nth-child(1) .layer-label {
      color: var(--brass);
    }

    /* ============================================================
   INTRO
   ============================================================ */
    .intro-inner {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 64px;
    }

    @media (max-width: 860px) {
      .intro-inner {
        grid-template-columns: 1fr;
        gap: 32px;
      }
    }

    .intro-copy p {
      color: var(--text-secondary);
      font-size: 17px;
      line-height: 1.8;
      margin-bottom: 20px;
      max-width: 560px;
    }

    .intro-copy p:last-child {
      color: var(--text-primary);
      font-family: var(--serif);
      font-size: 21px;
      line-height: 1.5;
      margin-bottom: 0;
    }

    /* ============================================================
   CAPABILITIES
   ============================================================ */
    .cap-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1px;
      background: var(--border);
      border: 1px solid var(--border);
      border-radius: var(--radius-m);
      overflow: hidden;
      margin-top: 48px;
    }

    @media (max-width: 860px) {
      .cap-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 560px) {
      .cap-grid {
        grid-template-columns: 1fr;
      }
    }

    .cap-card {
      background: var(--surface);
      padding: 36px 30px;
      transition: background 0.25s var(--ease);
    }

    .cap-card:hover {
      background: var(--surface-2);
    }

    .cap-ref {
      font-family: var(--mono);
      font-size: 11.5px;
      color: var(--brass);
      letter-spacing: 0.08em;
    }

    .cap-card h3 {
      font-family: var(--serif);
      font-weight: 500;
      font-size: 21px;
      margin-top: 16px;
      margin-bottom: 12px;
      color: var(--text-primary);
    }

    .cap-card p {
      color: var(--text-secondary);
      font-size: 14.5px;
      line-height: 1.7;
    }

    /* ============================================================
   VENTURES
   ============================================================ */
    .venture-list {
      margin-top: 48px;
      border-top: 1px solid var(--border);
    }

    .venture-row {
      display: grid;
      grid-template-columns: 200px 1fr;
      gap: 32px;
      padding: 32px 0;
      border-bottom: 1px solid var(--border);
      align-items: baseline;
    }

    @media (max-width: 640px) {
      .venture-row {
        grid-template-columns: 1fr;
        gap: 10px;
      }
    }

    .venture-name {
      font-family: var(--mono);
      font-size: 13px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .venture-name::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--sage);
    }

    .venture-desc {
      color: var(--text-secondary);
      font-size: 15.5px;
      line-height: 1.7;
      max-width: 620px;
    }

    .venture-note {
      margin-top: 28px;
      font-size: 13.5px;
      color: var(--text-tertiary);
      font-style: italic;
    }

    /* ============================================================
   APPROACH
   ============================================================ */
    .approach-statement {
      font-family: var(--serif);
      font-weight: 500;
      font-size: clamp(28px, 4.6vw, 48px);
      line-height: 1.28;
      color: var(--text-primary);
      margin: 8px 0 28px;
    }

    .approach-statement span {
      display: block;
      color: var(--text-tertiary);
    }

    .approach-statement span:nth-of-type(1) {
      color: var(--brass);
    }

    .principles {
      margin-top: 64px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 0;
      border-top: 1px solid var(--border);
    }

    @media (max-width: 860px) {
      .principles {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 560px) {
      .principles {
        grid-template-columns: 1fr;
      }
    }

    .principle {
      padding: 32px 28px 32px 0;
      border-right: 1px solid var(--border);
    }

    .principle:last-child {
      border-right: none;
    }

    @media (max-width: 860px) {
      .principle:nth-child(2n) {
        border-right: none;
      }
    }

    .principle-ref {
      font-family: var(--mono);
      font-size: 13px;
      color: var(--brass);
    }

    .principle h4 {
      font-family: var(--serif);
      font-size: 19px;
      font-weight: 500;
      margin: 14px 0 10px;
    }

    .principle p {
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.7;
    }

    /* ============================================================
   CURRENT STATE
   ============================================================ */
    .state-grid {
      margin-top: 56px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1px;
      background: var(--border);
      border: 1px solid var(--border);
      border-radius: var(--radius-m);
      overflow: hidden;
    }

    @media (max-width: 700px) {
      .state-grid {
        grid-template-columns: 1fr;
      }
    }

    .state-panel {
      padding: 40px 36px;
      background: var(--surface);
    }

    .state-panel.current {
      background: linear-gradient(180deg, rgba(196, 160, 99, 0.06), transparent 60%), var(--surface);
    }

    .state-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 26px;
    }

    .state-title {
      font-family: var(--mono);
      font-size: 12px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
    }

    .state-panel.current .state-title {
      color: var(--brass);
    }

    .state-panel.future .state-title {
      color: var(--text-tertiary);
    }

    .state-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
    }

    .state-panel.current .state-dot {
      background: var(--brass);
    }

    .state-panel.future .state-dot {
      background: var(--text-tertiary);
    }

    .state-panel ul li {
      padding: 12px 0;
      border-top: 1px solid var(--border);
      font-size: 15px;
      color: var(--text-primary);
    }

    .state-panel.future ul li {
      color: var(--text-secondary);
    }

    .state-panel ul li:first-child {
      border-top: none;
    }

    /* ============================================================
   RELATIONSHIP DIAGRAM
   ============================================================ */
    .relationship {
      margin-top: 56px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
    }

    .rel-node {
      padding: 20px 36px;
      border: 1px solid var(--border-strong);
      border-radius: var(--radius-s);
      font-family: var(--mono);
      font-size: 13px;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--text-secondary);
    }

    .rel-connector {
      width: 1px;
      height: 44px;
      background: linear-gradient(180deg, var(--border-strong), var(--brass));
      margin: 4px 0;
    }

    .rel-main {
      padding: 26px 48px;
      border: 1px solid var(--brass-dim);
      border-radius: var(--radius-m);
      background: linear-gradient(180deg, rgba(196, 160, 99, 0.08), transparent);
    }

    .rel-main .rel-title {
      font-family: var(--serif);
      font-size: 28px;
      color: var(--text-primary);
    }

    .rel-main .rel-sub {
      margin-top: 6px;
      font-family: var(--mono);
      font-size: 12px;
      color: var(--brass);
      letter-spacing: 0.1em;
    }

    .rel-branches {
      margin-top: 44px;
      display: flex;
      gap: 60px;
      flex-wrap: wrap;
      justify-content: center;
    }

    .rel-branch {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
    }

    .rel-branch-line {
      width: 1px;
      height: 26px;
      background: var(--border-strong);
    }

    .rel-branch-name {
      font-family: var(--mono);
      font-size: 12px;
      letter-spacing: 0.08em;
      color: var(--text-secondary);
      padding: 8px 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius-s);
    }

    /* ============================================================
   FUTURE DIRECTION
   ============================================================ */
    .future-inner {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }

    @media (max-width: 860px) {
      .future-inner {
        grid-template-columns: 1fr;
        gap: 36px;
      }
    }

    .future-copy p {
      color: var(--text-secondary);
      font-size: 16.5px;
      line-height: 1.8;
      margin-bottom: 18px;
      max-width: 540px;
    }

    .future-visual {
      border: 1px solid var(--border);
      border-radius: var(--radius-m);
      padding: 36px;
      background: var(--surface);
      position: relative;
      overflow: hidden;
    }

    .future-visual::before {
      content: "";
      position: absolute;
      top: -40%;
      right: -20%;
      width: 260px;
      height: 260px;
      background: radial-gradient(circle, rgba(196, 160, 99, 0.14), transparent 70%);
    }

    .future-line {
      display: flex;
      justify-content: space-between;
      padding: 14px 0;
      border-bottom: 1px solid var(--border);
      font-size: 13.5px;
      position: relative;
    }

    .future-line:last-child {
      border-bottom: none;
    }

    .future-line span:first-child {
      color: var(--text-tertiary);
      font-family: var(--mono);
      font-size: 12px;
    }

    .future-line span:last-child {
      color: var(--text-secondary);
    }

    /* ============================================================
   CONTACT
   ============================================================ */
    .contact-section {
      padding: 130px 0;
      text-align: center;
      border-top: 1px solid var(--border);
    }

    .contact-section .section-heading {
      max-width: 640px;
      margin: 0 auto 24px;
    }

    .contact-section .lede {
      margin: 0 auto 42px;
      max-width: 560px;
    }

    .contact-actions {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 18px;
    }

    .contact-email {
      font-family: var(--mono);
      font-size: 14px;
      color: var(--text-tertiary);
    }

    .contact-email a {
      color: var(--text-secondary);
      border-bottom: 1px solid var(--border-strong);
      transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
    }

    .contact-email a:hover {
      color: var(--brass);
      border-color: var(--brass);
    }

    /* ============================================================
   FOOTER
   ============================================================ */
    .footer {
      border-top: 1px solid var(--border);
      padding: 64px 0 40px;
    }

    .footer-top {
      display: flex;
      justify-content: space-between;
      gap: 40px;
      flex-wrap: wrap;
      padding-bottom: 48px;
    }

    .footer-brand .brand {
      margin-bottom: 14px;
    }

    .footer-tagline {
      font-size: 14px;
      color: var(--text-secondary);
    }

    .footer-note {
      margin-top: 6px;
      font-size: 13px;
      color: var(--text-tertiary);
    }

    .footer-links {
      display: flex;
      gap: 48px;
      flex-wrap: wrap;
    }

    .footer-col h5 {
      font-family: var(--mono);
      font-size: 11.5px;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--text-tertiary);
      margin-bottom: 16px;
    }

    .footer-col a {
      display: block;
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 12px;
      transition: color 0.2s var(--ease);
    }

    .footer-col a:hover {
      color: var(--text-primary);
    }

    .footer-bottom {
      padding-top: 28px;
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 12.5px;
      color: var(--text-tertiary);
      font-family: var(--mono);
    }

    /* scroll reveal */
    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
    }

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