/* ==========================================================
       NISSUS — DESIGN SYSTEM
       Direction: Basalt and marine layer
       Columnar basalt, overcast diffusion, lichen on wet stone.
       One accent: lichen. Cards, rules, and tables stay square.
       ========================================================== */
    
    :root {
      --fog:       #E9EDE9;   /* page ground — marine layer light */
      --paper:     #F5F7F4;   /* raised surfaces */
      --marine:    #C6D0CB;   /* rules, quiet fills */
      --slate:     #55666A;   /* secondary text */
      --basalt:    #172124;   /* primary text, near-black w/ blue-green cast */
      --sound:     #24393D;   /* inverted sections — deep water */
      --sound-2:   #1B2C30;
      --lichen:    #6F8556;   /* the single accent */
      --lichen-lt: #8CA271;
      
      --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
      --font-body:    -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
      --font-mono:    -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
      
      --max-w: 1180px;
      --gutter: 2rem;
      --gap: 3rem;
      --rail: 11rem;
    }
    
    * { box-sizing: border-box; margin: 0; padding: 0; }
    
    html { scroll-behavior: smooth; }
    
    body {
      font-family: var(--font-body);
      background: var(--fog);
      color: var(--basalt);
      font-size: 19px;
      font-weight: 400;
      line-height: 1.52;
      letter-spacing: -0.008em;
      font-variant-numeric: tabular-nums;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    
    .container {
      max-width: var(--max-w);
      margin: 0 auto;
      padding: 0 var(--gutter);
    }
    
    /* ==========================================================
       TYPOGRAPHY
       ========================================================== */
    
    h1, h2, h3, h4 {
      font-family: var(--font-display);
      font-weight: 600;
      letter-spacing: -0.032em;
      line-height: 1.05;
      color: var(--basalt);
    }
    
    .eyebrow {
      font-family: var(--font-mono);
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0;
      color: var(--lichen);
      display: inline-flex;
      align-items: center;
      gap: 0.75rem;
    }
    
    /* ==========================================================
       NAVIGATION
       ========================================================== */
    
    .nav {
      height: 70px;
      padding: 0;
      border-bottom: 1px solid var(--marine);
      position: sticky;
      top: 0;
      background: rgba(233, 237, 233, 0.86);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      z-index: 50;
    }
    
    .nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 100%;
    }
    
    .logo {
      font-family: var(--font-display);
      font-size: 1.02rem;
      font-weight: 700;
      letter-spacing: -0.01em;
      color: var(--basalt);
      text-decoration: none;
      display: flex;
      align-items: baseline;
      gap: 0.6rem;
    }
    
    .logo-mark {
      font-family: var(--font-mono);
      font-size: 0.78rem;
      font-weight: 400;
      color: var(--slate);
      letter-spacing: 0;
      align-self: baseline;
      padding-left: 0;
      border-left: none;
      margin-left: 0;
    }
    
    .nav-links {
      display: flex;
      gap: 2rem;
      list-style: none;
      align-items: center;
    }
    
    .nav-links a {
      font-family: var(--font-mono);
      font-size: 0.86rem;
      color: var(--slate);
      text-decoration: none;
      font-weight: 400;
      letter-spacing: 0;
      transition: color 0.18s ease, border-color 0.18s ease;
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      padding: 0.35rem 0;
      padding-bottom: 2px;
      border-bottom: 1px solid transparent;
    }
    
    .nav-links a:hover { color: var(--basalt); border-bottom-color: var(--lichen); }
    
    .nav-cta {
      background: var(--basalt);
      color: var(--paper) !important;
      padding: 0.55rem 1.1rem;
      border-radius: 980px;
      font-size: 0.86rem !important;
      font-weight: 500;
      border-bottom: none !important;
      transition: background 0.18s ease;
      min-height: 44px;
      display: inline-flex !important;
      align-items: center;
    }
    
    .menu-toggle {
      display: none;
      border: 1px solid var(--marine);
      background: transparent;
      color: var(--basalt);
      font-family: var(--font-mono);
      font-size: 0.78rem;
      letter-spacing: 0;
      min-height: 44px;
      min-width: 44px;
      padding: 0.55rem 0.8rem;
      cursor: pointer;
      border-radius: 0;
    }
    
    .mobile-menu {
      position: fixed;
      inset: 0;
      background: rgba(233, 237, 233, 0.98);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      z-index: 70;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 2rem var(--gutter);
    }
    
    .mobile-menu[hidden] { display: none !important; }
    .mobile-menu.open { display: flex; }
    
    .mobile-menu ul {
      list-style: none;
      width: min(100%, 24rem);
      display: grid;
      gap: 0.9rem;
    }
    
    .mobile-menu a {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 52px;
      text-decoration: none;
      border: 1px solid var(--marine);
      color: var(--basalt);
      background: var(--paper);
      font-size: 1rem;
      font-weight: 500;
      padding: 0.75rem 1rem;
      border-radius: 0;
    }
    
    .mobile-menu a.mobile-cta {
      background: var(--basalt);
      color: var(--paper);
      border-color: var(--basalt);
    }
    
    .nav-cta:hover { background: var(--lichen); }
    
    /* ==========================================================
       HERO
       ========================================================== */
    
    .hero {
      padding: 9rem 0 7rem;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--marine);
    }
    
    #contours {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
    }
    
    #contours path {
      fill: none;
      stroke: var(--basalt);
      stroke-width: 0.75;
      opacity: 0.13;
    }
    
    .hero .container {
      position: relative;
      z-index: 2;
    }
    
    .hero .eyebrow {
      display: block;
      font-size: 0.85rem;
      font-weight: 400;
      color: var(--slate);
      margin-bottom: 2.2rem;
    }
    
    .hero .eyebrow span {
      color: var(--lichen);
    }
    
    .hero h1 {
      font-size: clamp(2.6rem, 6.4vw, 4.8rem);
      font-weight: 600;
      letter-spacing: -0.032em;
      margin-bottom: 1.8rem;
      max-width: 17ch;
    }
    
    .lede {
      font-size: 1.3rem;
      color: var(--slate);
      max-width: 56ch;
      line-height: 1.58;
    }
    
    .icp {
      margin-top: 1.4rem;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--basalt);
    }
    
    .icp span {
      color: var(--slate);
      font-weight: 400;
    }
    
    .actions {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
      align-items: center;
      margin-top: 2.8rem;
    }
    
    .btn-primary {
      background: var(--basalt);
      color: var(--paper);
      padding: 0.85rem 1.6rem;
      border: 1px solid var(--basalt);
      border-radius: 980px;
      font-family: var(--font-mono);
      font-size: 0.9rem;
      font-weight: 500;
      letter-spacing: 0;
      text-decoration: none;
      cursor: pointer;
      transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      min-height: 48px;
    }
    
    .btn-primary:hover {
      background: var(--lichen);
      border-color: var(--lichen);
    }
    
    .btn-secondary {
      color: var(--basalt);
      padding: 0.85rem 1.6rem;
      font-family: var(--font-mono);
      font-size: 0.9rem;
      font-weight: 500;
      letter-spacing: 0;
      text-decoration: none;
      border: 1px solid var(--basalt);
      border-radius: 980px;
      transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
      display: inline-flex;
      align-items: center;
      min-height: 44px;
    }
    
    .btn-secondary:hover {
      background: var(--basalt);
      color: var(--paper);
    }
    
    .coords {
      margin-top: 4rem;
      font-family: var(--font-mono);
      font-size: 0.82rem;
      letter-spacing: 0;
      color: var(--slate);
      display: flex;
      gap: 2rem;
      flex-wrap: wrap;
    }
    
    /* ==========================================================
       SURVEY RAIL
       ========================================================== */
    
    .rail {
      display: grid;
      grid-template-columns: var(--rail) 1fr;
      gap: var(--gap);
      align-items: start;
    }
    
    .label {
      font-family: var(--font-mono);
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0;
      color: var(--lichen);
      padding-top: 0.7rem;
      border-top: 1px solid var(--marine);
    }
    
    .inverted .label {
      color: var(--lichen-lt);
      border-top-color: rgba(198, 208, 203, 0.28);
    }
    
    .inverted {
      background: var(--sound);
      color: var(--paper);
    }
    
    .inverted h2,
    .inverted h3 {
      color: var(--paper);
    }
    
    /* ==========================================================
       THESIS
       ========================================================== */
    
    .thesis {
      padding: 7.5rem 0;
    }
    
    .thesis h2 {
      font-size: clamp(2rem, 4.4vw, 3.1rem);
      max-width: 19ch;
      margin-bottom: 2rem;
    }
    
    .thesis p {
      max-width: 60ch;
      color: var(--marine);
      margin-bottom: 1.15em;
    }
    
    .thesis .strong {
      color: var(--paper);
    }
    
    .thesis blockquote {
      margin: 3.5rem 0 0;
      padding-left: 1.6rem;
      border-left: 2px solid var(--lichen);
      font-family: var(--font-display);
      font-weight: 500;
      font-size: 1.45rem;
      line-height: 1.28;
      letter-spacing: -0.015em;
      max-width: 24ch;
      color: var(--paper);
    }
    
    /* ==========================================================
       ENGAGEMENT MODEL
       ========================================================== */
    
    .model {
      padding: 7.5rem 0;
    }
    
    .model h2 {
      font-size: clamp(1.8rem, 3.8vw, 2.6rem);
      max-width: 22ch;
      margin-bottom: 0.5rem;
    }
    
    .steps {
      margin-top: 1rem;
      border-top: 1px solid var(--marine);
    }
    
    .step {
      display: grid;
      grid-template-columns: 5rem 1fr 1fr;
      gap: var(--gap);
      padding: 2.5rem 0;
      border-bottom: 1px solid var(--marine);
      align-items: start;
    }
    
    .step .num {
      font-family: var(--font-mono);
      font-size: 0.86rem;
      font-weight: 500;
      color: var(--lichen);
      padding-top: 0.35rem;
    }
    
    .step .num em {
      display: block;
      font-style: normal;
      font-size: 0.78rem;
      color: var(--slate);
      margin-top: 0.2rem;
    }
    
    .step h3 {
      font-size: 1.42rem;
      letter-spacing: -0.018em;
    }
    
    .step p {
      margin: 0;
      color: var(--slate);
      font-size: 1.02rem;
    }
    
    /* ==========================================================
       WHY THIS MATTERS
       ========================================================== */
    
    .why {
      padding: 7.5rem 0;
      background: var(--paper);
      border-top: 1px solid var(--marine);
    }
    
    .why h2 {
      font-size: clamp(1.8rem, 3.8vw, 2.6rem);
      margin-bottom: 1rem;
    }
    
    .why > .rail > div > p {
      color: var(--slate);
      max-width: 56ch;
    }
    
    .ladder {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1px;
      background: var(--marine);
      border: 1px solid var(--marine);
      margin-top: 2.5rem;
    }
    
    .rung {
      background: var(--paper);
      padding: 2.1rem 1.8rem;
      border-radius: 0;
    }
    
    .rung .k {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--slate);
      margin-bottom: 0.7rem;
    }
    
    .rung h3 {
      font-size: 1.32rem;
      margin-bottom: 0.6rem;
    }
    
    .rung p {
      font-size: 0.98rem;
      color: var(--slate);
      margin: 0;
    }
    
    .rung.on {
      background: var(--sound);
    }
    
    .rung.on .k {
      color: var(--lichen-lt);
    }
    
    .rung.on h3 {
      color: var(--paper);
    }
    
    .rung.on p {
      color: var(--marine);
    }
    
    .measure {
      margin-top: 2.5rem;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2.5rem;
    }
    
    .measure div {
      border-top: 1px solid var(--marine);
      padding-top: 1rem;
    }
    
    .measure b {
      display: block;
      font-size: 0.98rem;
      font-weight: 600;
      margin-bottom: 0.35rem;
    }
    
    .measure span {
      font-size: 0.95rem;
      color: var(--slate);
    }
    
    /* ==========================================================
       CAPABILITIES
       ========================================================== */
    
    .capabilities {
      padding: 7.5rem 0;
      background: var(--paper);
      border-top: 1px solid var(--marine);
      border-bottom: 1px solid var(--marine);
    }
    
    .capabilities h2 {
      font-size: clamp(1.8rem, 3.8vw, 2.6rem);
      margin-bottom: 1rem;
    }
    
    .capabilities h2 + p {
      color: var(--slate);
      max-width: 56ch;
    }
    
    .split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1px;
      background: var(--marine);
      border: 1px solid var(--marine);
      margin-top: 2.5rem;
    }
    
    .split > div {
      background: var(--paper);
      padding: 1.9rem 1.8rem;
      border-radius: 0;
    }
    
    .split .k {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--slate);
      margin-bottom: 0.6rem;
    }
    
    .split p {
      font-size: 1rem;
      color: var(--basalt);
      margin: 0;
    }
    
    .seam {
      position: relative;
      margin-top: 1rem;
    }
    
    .pair {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 5rem;
    }
    
    .seamline {
      position: absolute;
      left: 50%;
      top: 0;
      bottom: 0;
      width: 1px;
      background: var(--marine);
      transform: translateX(-0.5px);
    }
    
    .joint {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      background: var(--fog);
      padding: 0.55rem 0.85rem;
      font-family: var(--font-mono);
      font-size: 0.78rem;
      letter-spacing: 0;
      color: var(--lichen);
      border: 1px solid var(--marine);
      white-space: nowrap;
      border-radius: 0;
    }
    
    .cap h3 {
      font-size: 1.75rem;
      margin-bottom: 1rem;
    }
    
    .cap p {
      color: var(--slate);
      font-size: 1.04rem;
    }
    
    .naics {
      margin-top: 1.6rem;
      font-family: var(--font-mono);
      font-size: 0.86rem;
      letter-spacing: 0;
      color: var(--slate);
      line-height: 1.9;
    }
    
    .naics b {
      color: var(--basalt);
      font-weight: 500;
    }
    
    .cap-diff {
      margin-top: 2.5rem;
      color: var(--slate);
      max-width: 58ch;
    }
    
    /* ==========================================================
       PAST PERFORMANCE
       ========================================================== */
    
    .work {
      padding: 7.5rem 0;
    }
    
    .work h2 {
      font-size: clamp(1.8rem, 3.8vw, 2.6rem);
      margin-bottom: 1rem;
    }
    
    .work h2 + p {
      color: var(--slate);
      max-width: 56ch;
    }
    
    .cases {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1px;
      background: var(--marine);
      border: 1px solid var(--marine);
      margin-top: 1rem;
    }
    
    .case {
      background: var(--paper);
      padding: 2.2rem 2rem;
      border-radius: 0;
    }
    
    .case .meta {
      font-family: var(--font-mono);
      font-size: 0.8rem;
      font-weight: 500;
      letter-spacing: 0;
      color: var(--lichen);
      margin-bottom: 0.9rem;
    }
    
    .case h3 {
      font-size: 1.28rem;
      margin-bottom: 0.7rem;
      letter-spacing: -0.015em;
    }
    
    .case p {
      font-size: 0.98rem;
      color: var(--slate);
      margin-bottom: 1rem;
    }
    
    .case h4 {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--lichen);
      margin: 1.2rem 0 0.4rem;
    }
    
    .case ul {
      margin: 0 0 1rem;
      padding-left: 1.1rem;
      font-size: 0.96rem;
      color: var(--slate);
    }
    
    .case ul li {
      margin-bottom: 0.25rem;
    }
    
    .stack {
      font-family: var(--font-mono);
      font-size: 0.8rem;
      letter-spacing: 0;
      color: var(--slate);
      border-top: 1px solid var(--marine);
      padding-top: 0.9rem;
    }
    
    .note {
      margin-top: 1.6rem;
      font-size: 0.95rem;
      color: var(--slate);
    }
    
    .band {
      border-top: 1px solid var(--marine);
      border-bottom: 1px solid var(--marine);
      padding: 3.2rem 0;
      margin-top: 3.5rem;
    }
    
    .band .k {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--lichen);
      margin-bottom: 0.55rem;
    }
    
    .band-lead {
      color: var(--slate);
      font-size: 1rem;
      max-width: 58ch;
      margin-bottom: 1.6rem;
    }
    
    .names {
      display: flex;
      flex-wrap: wrap;
      gap: 0.55rem 2.6rem;
      align-items: baseline;
      font-family: var(--font-display);
      font-weight: 600;
      letter-spacing: -0.028em;
      font-size: clamp(1.15rem, 2.5vw, 1.65rem);
      color: var(--basalt);
      line-height: 1.35;
    }
    
    .names span {
      white-space: nowrap;
    }
    
    .names span.gov {
      color: var(--lichen);
    }
    
    .attrib {
      margin-top: 1.8rem;
      font-size: 0.95rem;
      color: var(--slate);
      max-width: 66ch;
    }
    
    /* ==========================================================
       PRIMES
       ========================================================== */
    
    .primes {
      padding: 7.5rem 0;
      background: var(--sound);
      color: var(--paper);
      position: relative;
    }
    
    .primes h2 {
      color: var(--paper);
      font-size: clamp(1.9rem, 4vw, 2.8rem);
      font-weight: 600;
      letter-spacing: -0.032em;
      max-width: 20ch;
      margin-bottom: 1.8rem;
    }
    
    .primes p {
      max-width: 58ch;
      color: var(--marine);
    }
    
    .primes p + p {
      margin-top: 1.15em;
    }
    
    .plist {
      list-style: none;
      padding: 0;
      margin: 2.5rem 0 0;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1px;
      background: rgba(198, 208, 203, 0.2);
    }
    
    .plist li {
      background: var(--sound);
      padding: 1.5rem 1.6rem;
      border-radius: 0;
    }
    
    .plist b {
      display: block;
      font-family: var(--font-mono);
      font-size: 0.82rem;
      letter-spacing: 0;
      color: var(--lichen-lt);
      font-weight: 500;
      margin-bottom: 0.5rem;
    }
    
    .plist span {
      font-size: 0.98rem;
      color: var(--marine);
    }
    
    .primes-cta {
      margin-top: 2.5rem;
      border-color: var(--marine);
      color: var(--paper);
    }
    
    .primes-cta:hover {
      background: var(--basalt);
      color: var(--paper);
      border-color: var(--basalt);
    }
    
    /* ==========================================================
       CONTRACTING
       ========================================================== */
    
    .contracting {
      padding: 7.5rem 0;
    }
    
    .reg {
      width: 100%;
      border-collapse: collapse;
      margin-top: 1rem;
    }
    
    .reg tr {
      border-bottom: 1px solid var(--marine);
    }
    
    .reg tr:first-child {
      border-top: 1px solid var(--marine);
    }
    
    .reg th {
      text-align: left;
      font-family: var(--font-mono);
      font-weight: 500;
      font-size: 0.82rem;
      letter-spacing: 0;
      color: var(--slate);
      padding: 1.05rem 1.5rem 1.05rem 0;
      width: 15rem;
      vertical-align: top;
    }
    
    .reg td {
      padding: 1.05rem 0;
      font-size: 1rem;
    }
    
    .reg td.m {
      font-family: var(--font-mono);
      font-size: 0.88rem;
      letter-spacing: 0;
    }
    
    /* ==========================================================
       CONTACT
       ========================================================== */
    
    .contact {
      padding: 7.5rem 0;
      background: var(--paper);
      border-top: 1px solid var(--marine);
    }
    
    .contact h2 {
      font-size: clamp(2rem, 4.6vw, 3.2rem);
      max-width: 16ch;
      margin-bottom: 1.6rem;
    }
    
    .contact p {
      max-width: 52ch;
      color: var(--slate);
    }
    
    .mailto {
      display: inline-block;
      margin-top: 1.5rem;
      font-family: var(--font-display);
      font-weight: 600;
      font-size: clamp(1.3rem, 3vw, 2rem);
      letter-spacing: -0.02em;
      text-decoration: none;
      border-bottom: 2px solid var(--lichen);
      padding-bottom: 0.15rem;
    }
    
    .mailto:hover {
      color: var(--lichen);
    }
    
    /* ==========================================================
       TEAM
       ========================================================== */
    
    .team {
      padding: 7.5rem 0;
      background: var(--paper);
      border-top: 1px solid var(--marine);
    }
    
    .team h2 {
      font-size: clamp(1.8rem, 3.8vw, 2.6rem);
      margin-bottom: 1rem;
    }
    
    .team h2 + p {
      color: var(--slate);
      max-width: 56ch;
    }
    
    .people {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      margin-top: 1rem;
    }
    
    .portrait {
      margin-bottom: 1.6rem;
    }
    
    .portrait img {
      display: block;
      width: 100%;
      height: auto;
      aspect-ratio: 4 / 5;
      object-fit: cover;
    }
    
    .person h3 {
      font-size: 1.55rem;
      margin-bottom: 0.25rem;
    }
    
    .person .role {
      font-family: var(--font-mono);
      font-size: 0.82rem;
      font-weight: 500;
      letter-spacing: 0;
      color: var(--lichen);
      margin-bottom: 1.1rem;
    }
    
    .person p {
      font-size: 1rem;
      color: var(--slate);
    }
    
    .brothers {
      margin-top: 4rem;
      padding-top: 2rem;
      border-top: 1px solid var(--marine);
      font-family: var(--font-display);
      font-weight: 500;
      font-size: 1.4rem;
      line-height: 1.3;
      letter-spacing: -0.018em;
      max-width: 48ch;
    }
    
    /* ==========================================================
       FOOTER
       ========================================================== */
    
    footer {
      background: var(--sound-2);
      color: var(--marine);
      padding: 4.5rem 0 2.5rem;
      font-size: 0.95rem;
    }
    
    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2.5rem;
      padding-bottom: 3.5rem;
      border-bottom: 1px solid rgba(198, 208, 203, 0.16);
    }
    
    @media (min-width: 768px) {
      .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2.5rem; }
    }
    
    .footer-brand .logo { color: var(--paper); }
    
    .footer-brand .logo-mark { color: var(--marine); }
    
    .footer-tagline {
      color: var(--paper);
      font-family: var(--font-display);
      font-weight: 500;
      font-size: 1.15rem;
      margin-top: 1rem;
      max-width: 22ch;
      line-height: 1.3;
      letter-spacing: -0.015em;
    }
    
    .footer-col h2 {
      font-family: var(--font-mono);
      font-size: 0.8rem;
      letter-spacing: 0;
      color: var(--lichen-lt);
      margin-bottom: 1rem;
      font-weight: 500;
    }
    
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }
    
    .footer-col a, .footer-col li {
      color: var(--marine);
      text-decoration: none;
      font-size: 0.95rem;
      transition: color 0.18s;
      display: inline-flex;
      align-items: center;
      min-height: 44px;
    }
    
    .footer-col a:hover { color: var(--paper); }
    
    .footer-bottom {
      padding-top: 1.5rem;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
      font-family: var(--font-mono);
      font-size: 0.8rem;
      letter-spacing: 0;
      color: var(--slate);
    }
    
    /* ==========================================================
       A11Y
       ========================================================== */
    
    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      clip-path: inset(50%);
      white-space: nowrap;
      border: 0;
    }
    
    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--lichen);
      outline-offset: 3px;
    }
    
    @media (max-width: 900px) {
      body { font-size: 18px; }
      .hero { padding: 5.5rem 0 4.5rem; }
      .thesis,
      .model,
      .why,
      .capabilities,
      .work,
      .team,
      .primes,
      .contracting,
      .contact { padding: 5rem 0; }
      .rail {
        grid-template-columns: 1fr;
        gap: 1.2rem;
      }
      .label {
        padding-top: 0;
        border-top: none;
        border-left: 2px solid var(--lichen);
        padding-left: 0.7rem;
      }
      .inverted .label {
        border-left-color: var(--lichen-lt);
      }
      .step {
        grid-template-columns: 3rem 1fr;
        gap: 1.2rem;
      }
      .step p {
        grid-column: 2;
      }
      .ladder,
      .measure,
      .split,
      .cases,
      .people,
      .plist {
        grid-template-columns: 1fr;
      }
      .pair {
        grid-template-columns: 1fr;
        gap: 3rem;
      }
      .seamline {
        left: 0;
        width: 1px;
      }
      .joint {
        left: 0;
        transform: translate(-50%, -50%);
      }
      .reg th {
        width: auto;
        display: block;
        padding-bottom: 0.2rem;
      }
      .reg td {
        display: block;
        padding-top: 0;
        padding-bottom: 1.1rem;
      }
    }
    
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      
      .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }
      
      .logo {
        font-size: 1.02rem;
      }
      
      .logo-mark {
        font-size: 0.78rem;
      }
      
      .footer-grid {
        gap: 2rem;
      }
      
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }
    
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation: none !important;
        transition: none !important;
      }
      #contours path {
        stroke-dasharray: none !important;
        stroke-dashoffset: 0 !important;
      }
    }