.hero {
    min-height: 100vh;
    padding: 140px 40px 60px;
    position: relative;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 60px;
    align-items: end;
    overflow: hidden;
  }


  /* Hero slideshow backdrop (crossfade + subtle Ken Burns) */
  .hero-photo {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
  }
  .hero-slideshow {
    position: absolute;
    inset: 0;
  }
  .hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-repeat: no-repeat;
    opacity: 0;
    transform: scale(1.04);
    transition: opacity 2.4s ease-in-out;
    will-change: opacity, transform;
  }
  .hero-slide.is-active {
    opacity: 1;
    z-index: 1;
    transform: scale(1);
    transition: opacity 2.4s ease-in-out, transform 9s ease-out;
  }
  .hero-slide.is-active.is-kenburns {
    transform: scale(1.07);
  }
  @media (prefers-reduced-motion: reduce) {
    .hero-slide { transition: none; transform: none; }
    .hero-slide:not(.is-active) { display: none; }
  }
  /* Theme-aware scrim over slideshow — heavier left + bottom band for text legibility */
  .hero-photo::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
  }
  [data-theme="dark"] .hero-photo::after {
    background:
      linear-gradient(to right, rgba(5,6,8,0.94) 0%, rgba(5,6,8,0.84) 38%, rgba(5,6,8,0.68) 62%, rgba(5,6,8,0.50) 100%),
      linear-gradient(to top, rgba(5,6,8,0.93) 0%, rgba(5,6,8,0.72) 32%, rgba(5,6,8,0.38) 55%, transparent 72%);
  }
  [data-theme="light"] .hero-photo::after {
    background:
      linear-gradient(to right, rgba(8,12,20,0.90) 0%, rgba(8,12,20,0.78) 38%, rgba(8,12,20,0.58) 62%, rgba(8,12,20,0.40) 100%),
      linear-gradient(to top, rgba(8,12,20,0.88) 0%, rgba(8,12,20,0.68) 32%, rgba(8,12,20,0.30) 55%, transparent 72%);
  }

  /* Triangulation background (logo motif scaled up) */
  .hero-geometry {
    position: absolute;
    top: 10%;
    right: -5%;
    width: 70vh;
    height: 70vh;
    opacity: 0.30;
    pointer-events: none;
    z-index: 1;
    mix-blend-mode: screen;
  }
  .hero-geometry svg { width: 100%; height: 100%; }

  .hero-meta {
    position: absolute;
    top: 100px;
    left: 40px;
    display: flex;
    gap: 32px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--fg-muted);
    text-transform: uppercase;
    z-index: 2;
  }
  .hero-meta span::before {
    content: '— ';
    color: var(--meta);
  }

  .hero-left { position: relative; z-index: 2; }
  .hero-headline {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(54px, 8.5vw, 136px);
    line-height: 0.92;
    letter-spacing: -0.035em;
    color: var(--fg);
  }
  .hero-headline em {
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
  }
  .hero-headline .break { display: block; }
  .hero-headline .indent { padding-left: 1.2em; }

  .hero-right {
    display: flex;
    flex-direction: column;
    gap: 32px;
    padding-bottom: 8px;
    position: relative;
    z-index: 2;
  }
  .hero-intro {
    font-size: 16px;
    line-height: 1.6;
    color: var(--fg-muted);
    max-width: 460px;
  }
  .hero-intro strong { color: var(--fg); font-weight: 500; }

  .hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding-top: 32px;
    border-top: 1px solid var(--line-brand);
  }
  .stat-num {
    font-family: var(--serif);
    font-size: 48px;
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--fg);
  }
  .stat-num sup {
    font-size: 0.5em;
    color: var(--accent);
    vertical-align: super;
  }
  .stat-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--meta);
    margin-top: 8px;
  }

  .hero-scroll {
    position: absolute;
    bottom: 30px;
    right: 40px;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--fg-muted);
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 2;
  }
  .hero-scroll::after {
    content: '';
    width: 40px; height: 1px;
    background: var(--ets-teal-light);
  }

  .corner-mark {
    position: absolute;
    width: 24px;
    height: 24px;
    border: 1px solid var(--ets-teal);
    z-index: 2;
  }
  .corner-mark.tl { top: 90px; left: 40px; border-right: none; border-bottom: none; }
  .corner-mark.tr { top: 90px; right: 40px; border-left: none; border-bottom: none; }

  /* ========== MARQUEE ========== */
  .marquee {
    padding: 22px 0;
    background: var(--ets-blue-deep);
    color: var(--bone);
    overflow: hidden;
    border-top: 1px solid var(--ets-blue);
    border-bottom: 1px solid var(--ets-blue);
  }
  .marquee-track {
    display: flex;
    gap: 48px;
    white-space: nowrap;
    animation: scroll 50s linear infinite;
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 300;
    font-style: italic;
  }
  .marquee-track span::after {
    content: '▲';
    margin-left: 48px;
    color: var(--meta);
    font-style: normal;
    font-size: 14px;
    vertical-align: middle;
  }
  @keyframes scroll {
    to { transform: translateX(calc(-50% - 24px)); }
  }

  /* ========== SECTION BASE ========== */
  section { padding: 120px 0; position: relative; }

  .section-header {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    margin-bottom: 80px;
    align-items: end;
  }
  .section-label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--meta);
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .section-label::before {
    content: '';
    width: 40px; height: 1px;
    background: var(--ets-blue-light);
  }
  .section-title {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(38px, 5.5vw, 72px);
    line-height: 1;
    letter-spacing: -0.028em;
    color: var(--fg);
  }
  .section-title em { font-style: italic; color: var(--accent); }

  /* ========== WE KNOW THIS GROUND ========== */
  .ground {
    padding: 140px 0;
    border-bottom: 1px solid var(--line);
  }
  .ground-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 100px;
    align-items: start;
  }
  .ground-left .section-label { margin-bottom: 28px; }
  .ground-title {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(48px, 6.5vw, 92px);
    line-height: 0.95;
    letter-spacing: -0.03em;
    color: var(--fg);
    margin-bottom: 40px;
  }
  .ground-title em { font-style: italic; color: var(--accent); }
  .ground-lede {
    font-family: var(--serif);
    font-size: clamp(20px, 1.8vw, 24px);
    font-weight: 400;
    line-height: 1.35;
    color: var(--fg);
    margin-bottom: 28px;
    max-width: 540px;
  }
  .ground-body {
    font-size: 15px;
    line-height: 1.7;
    color: var(--fg-muted);
    max-width: 540px;
  }
  .ground-right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px 32px;
    padding-top: 16px;
  }
  .ground-stat {
    padding-top: 24px;
    border-top: 1px solid var(--line-brand);
  }
  .gs-num {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(52px, 5vw, 72px);
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--fg);
    margin-bottom: 12px;
  }
  .gs-num sup {
    font-size: 0.45em;
    color: var(--accent);
    vertical-align: super;
  }
  .gs-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--meta);
    line-height: 1.55;
  }

  /* ========== SERVICES ========== */
  .services {
    border-bottom: 1px solid var(--line);
  }
  .services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border-top: 1px solid var(--line-strong);
  }
  .service {
    padding: 40px 32px 40px 0;
    border-right: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    min-height: 440px;
    position: relative;
    cursor: pointer;
    transition: background 0.4s ease;
  }
  .service:hover { background: rgba(0,86,171,0.06); }
  a.service { text-decoration: none; color: inherit; }
  .service-link {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-top: auto;
    padding-top: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .service:hover .service-link { color: var(--meta); }
  .service:last-child { border-right: none; }
  .service:nth-child(n+1) { padding-left: 32px; }
  .service:first-child { padding-left: 0; }

  .service-num {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    color: var(--meta);
  }
  .service-icon {
    margin: 24px 0 32px;
    width: 56px;
    height: 56px;
    color: var(--accent);
  }
  .service-title {
    font-family: var(--serif);
    font-size: 24px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
    color: var(--fg);
  }
  .service-desc {
    font-size: 13px;
    line-height: 1.6;
    color: var(--fg-muted);
    margin-bottom: 24px;
    flex-grow: 1;
  }
  .service-list {
    list-style: none;
    padding-top: 16px;
    border-top: 1px solid var(--line);
  }
  .service-list li {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--fg-muted);
    padding: 6px 0;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .service-list li::before {
    content: '→';
    color: var(--accent);
  }

  /* ========== CREDENTIALS ========== */
  .credentials {
    background: var(--ets-blue-deep);
    color: var(--bone);
    padding: 70px 40px;
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: 60px;
    align-items: center;
    border-top: 1px solid var(--ets-blue);
    border-bottom: 1px solid var(--ets-blue);
    position: relative;
    overflow: hidden;
  }
  .credentials::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    border: 1px solid rgba(16,115,112,0.3);
    pointer-events: none;
  }
  .credentials::after {
    content: '';
    position: absolute;
    top: -20%;
    right: 0%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    border: 1px dashed rgba(16,115,112,0.4);
    pointer-events: none;
  }

  .cred-title {
    font-family: var(--serif);
    font-size: 32px;
    font-weight: 300;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--bone);
    position: relative;
    z-index: 2;
  }
  .cred-title em { color: var(--meta); font-style: italic; }
  .cred-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 32px;
    border-left: 1px solid var(--line-mid);
    padding-left: 60px;
    position: relative;
    z-index: 2;
  }
  .cred-item { display: flex; flex-direction: column; gap: 6px; }
  .cred-name {
    font-family: var(--serif);
    font-size: 18px;
    font-weight: 400;
    line-height: 1.1;
    color: var(--bone);
  }
  .cred-sub {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--meta);
  }

  /* ========== PROJECTS ========== */
  .projects { border-bottom: 1px solid var(--line); }

  .projects-header {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: end;
    margin-bottom: 60px;
    gap: 40px;
  }
  .projects-header p {
    color: var(--fg-muted);
    max-width: 560px;
  }
  .filter-tabs {
    display: flex;
    gap: 4px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }
  .filter-tabs button {
    background: transparent;
    border: 1px solid var(--line-strong);
    padding: 10px 16px;
    cursor: pointer;
    color: var(--fg);
    font-family: inherit;
    font-size: inherit;
    letter-spacing: inherit;
    transition: all 0.2s;
  }
  .filter-tabs button:hover { background: var(--ets-blue); border-color: var(--ets-blue); }
  .filter-tabs button.active { background: var(--ets-blue); border-color: var(--ets-blue); color: var(--fg); }

  .projects-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    grid-auto-rows: 160px;
  }
  .project {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-elevated);
    border: 1px solid var(--line);
  }
  .project-bg {
    position: absolute;
    inset: 0;
    transition: transform 0.8s cubic-bezier(0.2,0.6,0.2,1);
  }
  .project:hover .project-bg { transform: scale(1.08); }
  .project-photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  .project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(5,6,8,0.92) 0%, rgba(5,6,8,0.5) 45%, rgba(5,6,8,0.15) 100%);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: var(--bone);
  }
  .project-tag {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    align-self: flex-start;
    background: rgba(0,86,171,0.4);
    backdrop-filter: blur(6px);
    padding: 5px 10px;
    border: 1px solid rgba(74,143,209,0.4);
  }
  .project-name {
    font-family: var(--serif);
    font-size: 20px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.01em;
  }
  .project-meta {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--meta);
    margin-top: 4px;
  }

  /* Project grid spans */
  .p-1 { grid-column: span 4; grid-row: span 2; }
  .p-2 { grid-column: span 2; grid-row: span 2; }
  .p-3 { grid-column: span 2; grid-row: span 2; }
  .p-4 { grid-column: span 2; grid-row: span 1; }
  .p-5 { grid-column: span 2; grid-row: span 1; }
  .p-6 { grid-column: span 3; grid-row: span 2; }
  .p-7 { grid-column: span 3; grid-row: span 2; }

  /* Project bg — blue-tinted engineering illustrations */
  .bg-bridge { background: linear-gradient(135deg, #0a2540 0%, #041326 100%); }
  .bg-tunnel { background: linear-gradient(135deg, #0a1a2e 0%, #03101c 100%); }
  .bg-water  { background: linear-gradient(160deg, #083346 0%, #041722 100%); }
  .bg-road   { background: linear-gradient(135deg, #0a2540 0%, #03121f 100%); }
  .bg-port   { background: linear-gradient(135deg, #062840 0%, #021320 100%); }
  .bg-campus { background: linear-gradient(135deg, #0a1f38 0%, #030f1c 100%); }

  .project-art {
    position: absolute;
    inset: 0;
    opacity: 0.4;
  }

  .projects-cta-wrap {
    margin-top: 48px;
    padding-top: 40px;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
  }
  .projects-cta-text {
    font-family: var(--serif);
    font-size: 17px;
    font-style: italic;
    color: var(--fg-muted);
  }
  .projects-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    background: var(--ets-blue);
    color: var(--bone);
    text-decoration: none;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: 1px solid var(--ets-blue);
    transition: all 0.2s;
  }
  .projects-cta-btn:hover {
    background: var(--ets-blue-light);
    border-color: var(--ets-blue-light);
  }
  .projects-cta-btn svg { transition: transform 0.2s; }
  .projects-cta-btn:hover svg { transform: translate(3px, -3px); }
  a.project { text-decoration: none; color: inherit; display: block; }

  .tunnel-callout {
    padding: 48px 40px;
    background: var(--ets-blue-deep);
    color: var(--bone);
    border-top: 1px solid var(--ets-blue);
    border-bottom: 1px solid var(--ets-blue);
  }
  .tunnel-callout-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 32px;
    align-items: center;
  }
  .tunnel-callout-tag {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ets-teal-light);
    padding: 8px 12px;
    border: 1px solid var(--ets-teal);
    white-space: nowrap;
  }
  .tunnel-callout-text {
    font-family: var(--serif);
    font-size: clamp(18px, 1.8vw, 24px);
    line-height: 1.45;
    font-weight: 400;
  }
  .tunnel-callout-text em { color: var(--ets-teal-light); font-style: italic; }

  .clients {
    padding: 80px 0;
    border-bottom: 1px solid var(--line);
    background: var(--bg-section);
  }
  .clients-header {
    text-align: center;
    margin-bottom: 48px;
  }
  .clients-header h3 {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--meta);
    margin-bottom: 12px;
  }
  .clients-header p {
    font-family: var(--serif);
    font-size: clamp(22px, 2.5vw, 32px);
    font-weight: 300;
    color: var(--fg);
  }
  .clients-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 48px 64px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 40px;
  }
  .client-logo {
    height: 48px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
    opacity: 0.75;
    filter: grayscale(20%);
    transition: opacity 0.25s;
  }
  .client-logo:hover { opacity: 1; }
  [data-theme="dark"] .client-logo {
    opacity: 0.82;
    filter: brightness(0) invert(1) grayscale(15%);
  }
  [data-theme="dark"] .client-logo:hover { opacity: 1; }
  [data-theme="light"] .client-logo { opacity: 0.85; }

  .lab-aap {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
    font-size: 14px;
    line-height: 1.65;
    color: var(--fg-muted);
  }
  .lab-aap a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
  .lab-aap a:hover { color: var(--meta); }

  /* ========== LAB ========== */
  .lab {
    padding: 120px 40px;
    background: var(--bg-section);
    border-bottom: 1px solid var(--line);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
  }
  .lab-visual {
    position: relative;
    aspect-ratio: 4/5;
    background: var(--bg);
    overflow: hidden;
    border: 1px solid var(--line-brand);
  }
  .lab-visual svg { width: 100%; height: 100%; display: block; }
  .lab-caption {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    color: var(--fg);
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    z-index: 2;
  }
  .lc-title {
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 400;
    line-height: 1.15;
    max-width: 62%;
    color: var(--bone);
  }
  .lc-title em { color: var(--meta); font-style: italic; }
  .lc-meta {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--meta);
    text-align: right;
    line-height: 1.5;
  }

  .lab-content .section-label { margin-bottom: 24px; }
  .lab-content h2 {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(38px, 4.8vw, 60px);
    line-height: 1;
    letter-spacing: -0.025em;
    margin-bottom: 32px;
    color: var(--fg);
  }
  .lab-content h2 em { font-style: italic; color: var(--accent); }
  .lab-content p {
    font-size: 15px;
    line-height: 1.65;
    color: var(--fg-muted);
    margin-bottom: 20px;
    max-width: 480px;
  }
  .lab-spec-list {
    margin-top: 40px;
    list-style: none;
    border-top: 1px solid var(--line-brand);
  }
  .lab-spec-list li {
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
    display: grid;
    grid-template-columns: 60px 1fr auto;
    gap: 24px;
    align-items: center;
  }
  .spec-num {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    color: var(--meta);
  }
  .spec-name {
    font-family: var(--serif);
    font-size: 17px;
    font-weight: 400;
    color: var(--fg);
  }
  .spec-val {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
  }

  /* ========== APPROACH ========== */
  .approach {
    padding: 120px 0;
    border-bottom: 1px solid var(--line);
  }
  .approach-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
  }
  .quote {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(28px, 3.5vw, 44px);
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--fg);
  }
  .quote em { font-style: italic; color: var(--accent); }
  .quote-mark {
    font-family: var(--serif);
    font-size: 120px;
    line-height: 0.6;
    color: var(--meta);
    margin-bottom: 20px;
    display: block;
  }

  .approach-steps {
    display: flex;
    flex-direction: column;
    gap: 32px;
  }
  .step {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 24px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--line);
  }
  .step:last-child { border-bottom: none; }
  .step-num {
    font-family: var(--serif);
    font-size: 48px;
    font-weight: 300;
    line-height: 1;
    color: var(--accent);
    font-style: italic;
  }
  .step-title {
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 8px;
    color: var(--fg);
  }
  .step-desc {
    font-size: 14px;
    line-height: 1.6;
    color: var(--fg-muted);
  }

  /* ========== TEAM ========== */
  .team {
    padding: 120px 0;
    border-bottom: 1px solid var(--line);
    background: var(--bg-section);
  }
  .team-intro {
    font-family: var(--serif);
    font-size: clamp(18px, 1.7vw, 22px);
    font-weight: 400;
    line-height: 1.45;
    color: var(--fg);
    max-width: 720px;
    margin-bottom: 64px;
  }
  .team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--line-strong);
    border: 1px solid var(--line-strong);
  }
  .team-member {
    padding: 36px 32px;
    background: var(--bg-section);
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: background 0.3s;
  }
  .team-member:hover { background: var(--bg-elevated); }

  .tm-photo {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    margin-bottom: 8px;
    object-fit: cover;
    object-position: center top;
    background-color: var(--bg-elevated);
    border: 1px solid var(--line-mid);
    display: block;
  }

  .tm-name {
    font-family: var(--serif);
    font-size: 24px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.01em;
    color: var(--fg);
  }
  .tm-role {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--meta);
  }
  .tm-bio {
    font-size: 13.5px;
    line-height: 1.6;
    color: var(--fg-muted);
    flex-grow: 1;
  }
  .tm-creds {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    padding-top: 16px;
    border-top: 1px solid var(--line);
    margin-top: auto;
  }

  /* ========== CTA ========== */
  .cta {
    background: var(--ets-blue-deep);
    color: var(--bone);
    padding: 140px 40px;
    position: relative;
    overflow: hidden;
    border-top: 1px solid var(--ets-blue);
  }
  .cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 80% 30%, rgba(16,115,112,0.18), transparent 55%);
  }
  .cta::after {
    content: '';
    position: absolute;
    top: 10%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    border: 1px dashed rgba(16,115,112,0.25);
    pointer-events: none;
  }
  .cta-content {
    position: relative;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 80px;
    align-items: end;
    max-width: 1280px;
    margin: 0 auto;
  }
  .cta h2 {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(48px, 7vw, 108px);
    line-height: 0.95;
    letter-spacing: -0.03em;
  }
  .cta h2 em { font-style: italic; color: var(--meta); }
  .cta-right { display: flex; flex-direction: column; gap: 24px; }
  .cta-contact {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--meta);
  }
  .cta-contact a {
    display: block;
    font-family: var(--serif);
    font-size: 24px;
    font-weight: 400;
    color: var(--bone);
    text-decoration: none;
    letter-spacing: -0.01em;
    margin-top: 4px;
    text-transform: none;
  }
  .cta-contact a:hover { color: var(--meta); }
  .cta-contact--address a {
    font-size: clamp(17px, 1.8vw, 21px);
    line-height: 1.35;
  }

  .cta-button {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 20px 28px;
    background: var(--ets-teal);
    color: var(--bone);
    text-decoration: none;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    align-self: flex-start;
    border: 1px solid var(--ets-teal-light);
    cursor: pointer;
    transition: all 0.2s;
  }
  .cta-button:hover {
    background: var(--ets-teal-light);
    border-color: var(--meta);
  }
  .cta-button svg { transition: transform 0.2s; }
  .cta-button:hover svg { transform: translate(4px, -4px); }

@media (max-width: 1100px) {
    .hero { grid-template-columns: 1fr; }
    .hero-geometry { display: none; }
    .ground-grid { grid-template-columns: 1fr; gap: 60px; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .service:nth-child(2) { border-right: none; }
    .projects-grid { grid-template-columns: repeat(4, 1fr); }
    .p-1, .p-6, .p-7 { grid-column: span 4; }
    .p-2, .p-3, .p-4, .p-5 { grid-column: span 2; }
    .credentials { grid-template-columns: 1fr; }
    .cred-grid { grid-template-columns: repeat(3, 1fr); padding-left: 0; border-left: none; border-top: 1px solid var(--line-mid); padding-top: 40px; }
    .lab, .approach-grid, .cta-content { grid-template-columns: 1fr; gap: 60px; }
    .section-header { grid-template-columns: 1fr; gap: 30px; }
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 640px) {
    .nav { padding: 16px 20px; gap: 12px; }
    .nav-links { display: none; }
    .logo-text { font-size: 14px; }
    .logo-icon { width: 36px; height: 36px; }
    .hero { padding: 120px 20px 60px; }
    .hero-meta { left: 20px; top: 96px; flex-direction: column; gap: 8px; }
    .corner-mark.tl { left: 20px; top: 84px; }
    .corner-mark.tr { right: 20px; top: 84px; }
    .hero-stats { grid-template-columns: 1fr; gap: 16px; }
    .services, .projects, .lab, .approach, .cta, .ground, .team, footer { padding-left: 20px; padding-right: 20px; }
    .ground { padding-top: 80px; padding-bottom: 80px; }
    .ground-right { grid-template-columns: 1fr; gap: 28px; }
    .services-grid { grid-template-columns: 1fr; }
    .service { border-right: none !important; border-bottom: 1px solid var(--line); min-height: auto; padding-left: 0 !important; padding-right: 0; }
    .projects-grid { grid-template-columns: 1fr; }
    .p-1,.p-2,.p-3,.p-4,.p-5,.p-6,.p-7 { grid-column: span 1; grid-row: span 1; min-height: 220px; }
    .cred-grid { grid-template-columns: 1fr 1fr; }
    .team-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .footer-bottom { flex-direction: column; gap: 10px; }
    .hero-scroll { display: none; }
    .credentials { padding: 40px 20px; }
    .projects-header { grid-template-columns: 1fr; }
    .tunnel-callout-inner { grid-template-columns: 1fr; gap: 20px; }
    .clients-grid { gap: 32px 40px; }
    .client-logo { height: 36px; max-width: 120px; }
  }

  /* Fade-ins */
  .fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.9s cubic-bezier(0.2,0.6,0.2,1) forwards;
  }
  .fade-in.d1 { animation-delay: 0.1s; }
  .fade-in.d2 { animation-delay: 0.25s; }
  .fade-in.d3 { animation-delay: 0.4s; }
  @keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
  }

  /* Hero text always reads light — it sits on the dark photo in both themes */
  .hero .hero-headline { color: #f4f2ec !important; }
  .hero .hero-headline em { color: var(--ets-blue-light) !important; }
  .hero .hero-meta { color: rgba(244,242,236,0.85) !important; }
  .hero .hero-meta span::before { color: var(--ets-teal-light) !important; }
  .hero .hero-intro { color: rgba(244,242,236,0.88) !important; }
  .hero .hero-intro strong { color: #ffffff !important; }
  .hero .stat-num { color: #f4f2ec !important; }
  .hero .stat-num sup { color: var(--ets-blue-light) !important; }
  .hero .stat-label { color: var(--ets-teal-light) !important; }
  .hero .hero-stats { border-top-color: rgba(74,143,209,0.45) !important; }
  .hero .hero-scroll { color: rgba(244,242,236,0.7) !important; }
  .hero .hero-scroll::after { background: var(--ets-teal-light) !important; }
  .hero .corner-mark { border-color: rgba(42,150,145,0.8) !important; }
  .hero .hero-scroll::after { background: var(--ets-teal-light) !important; }
  .hero .corner-mark { border-color: rgba(42,150,145,0.8) !important; }