:root {
    --ink: #15130F;
    --ink-2: #1E1B16;
    --bone: #F4F1EA;
    --paper: #FBFAF6;
    --text: #1B1915;
    --muted: #5C564C;
    --line: rgba(27,25,21,0.14);
    --line-dark: rgba(244,241,234,0.16);
    --gold: #C8A24C;
    --gold-ink: #8A6A22;
    --max: 1180px;
    --font: 'Public Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  }

  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  html, body {
    margin: 0;
    padding: 0;
    background: var(--bone);
    color: var(--text);
    font-family: var(--font);
    font-size: 17px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
  }
  body { overflow-x: hidden; }
  img, video { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  ::selection { background: var(--gold); color: var(--ink); }
  :focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

  .skip {
    position: absolute; left: 12px; top: -48px; z-index: 100;
    background: var(--ink); color: var(--bone); padding: 8px 12px;
  }
  .skip:focus { top: 12px; }

  .wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
  @media (max-width: 640px) { .wrap { width: calc(100% - 32px); } }

  h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.015em; }
  .kicker {
    margin: 0 0 12px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--gold-ink);
  }
  h2 {
    font-size: clamp(26px, 2.8vw, 34px);
    line-height: 1.15;
    max-width: 24ch;
  }
  .lede {
    margin: 14px 0 0;
    max-width: 56ch;
    color: var(--muted);
  }
  section { padding: 80px 0; }
  section[id] { scroll-margin-top: 72px; }
  .dark { background: var(--ink); color: var(--bone); }
  .dark .kicker { color: var(--gold); }
  .paper { background: var(--paper); }
  .frame {
    position: relative; overflow: hidden;
    background: var(--ink-2); border-radius: 3px;
  }
  .frame img, .frame video { width: 100%; height: 100%; object-fit: cover; }

  /* ----- nav ----- */
  .nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(244,241,234,0.94);
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
  }
  .nav-inner {
    width: min(var(--max), calc(100% - 48px));
    margin: 0 auto;
    min-height: 66px;
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
  }
  @media (max-width: 640px) { .nav-inner { width: calc(100% - 32px); } }
  .brand {
    display: flex; align-items: center; gap: 11px;
    font-weight: 700; font-size: 21px; letter-spacing: -0.03em;
    color: var(--ink); line-height: 1;
  }
  .brand em { font-style: normal; color: var(--gold-ink); }
  .brand svg { display: block; color: var(--ink); }
  .brand-block { display: flex; flex-direction: column; gap: 1px; padding: 11px 0; }
  .brand { font-size: 23px; }
  .brand-line { margin: 0; padding-left: 43px; font-size: 11px; line-height: 1.3; font-style: italic; color: var(--muted); }
  .brand-line a { color: var(--gold-ink); font-weight: 500; }
  .brand-line a:hover { color: var(--text); border-bottom: 1px solid var(--gold); }
  @media (max-width: 640px) { .brand-line { font-size: 10.5px; padding-left: 0; } .brand { font-size: 21px; } }
  .nav-right { display: flex; align-items: center; gap: 28px; margin-left: auto; }
  .nav-links { display: flex; align-items: center; gap: 24px; font-size: 15px; font-weight: 500; }
  .nav-links a { color: var(--text); }
  .nav-links a:hover { color: var(--gold-ink); }
  .nav-cta {
    display: inline-flex; align-items: center;
    background: var(--ink); color: var(--bone);
    font-weight: 600; font-size: 14px;
    padding: 10px 16px; border-radius: 3px; white-space: nowrap;
  }
  .nav-cta:hover { background: var(--gold); color: var(--ink); }
  .nav-toggle { display: none; }
  @media (max-width: 900px) {
    .nav-right { gap: 14px; }
    .nav-toggle {
      display: block; background: none; border: 0; padding: 8px 0;
      font: 500 15px var(--font); color: var(--text); cursor: pointer;
    }
    .nav-links {
      display: none; position: absolute; left: 0; right: 0; top: 100%;
      background: var(--bone); border-bottom: 1px solid var(--line);
      flex-direction: column; align-items: flex-start; gap: 0; padding: 8px 24px 16px;
    }
    .nav.is-open .nav-links { display: flex; }
    .nav-links a { padding: 10px 0; font-size: 16px; }
  }
  @media (max-width: 480px) { .nav-cta { display: none; } }

  /* ----- hero ----- */
  .hero { padding: 0; }
  .hero .wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 56px;
    align-items: center;
    padding: 72px 0 80px;
  }
  .hero h1 {
    font-size: clamp(32px, 3.8vw, 50px);
    line-height: 1.08;
    letter-spacing: -0.02em;
    color: var(--bone);
  }
  .hero-lede {
    margin: 22px 0 0;
    max-width: 44ch;
    font-size: 18px;
    line-height: 1.5;
    color: rgba(244,241,234,0.78);
  }
  .hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 26px; margin-top: 32px; }
  .btn {
    display: inline-flex; align-items: center;
    background: var(--gold); color: var(--ink);
    font-weight: 600; font-size: 15px;
    padding: 13px 20px; border-radius: 3px;
  }
  .btn:hover { background: var(--bone); }
  .hero-mail {
    color: var(--bone); font-weight: 500;
    border-bottom: 1px solid var(--gold); padding-bottom: 2px;
  }
  .hero-mail:hover { color: var(--gold); }
  .hero-media { margin: 0; }
  .hero-media .frame { aspect-ratio: 16 / 9; }
  .hero-media figcaption { margin-top: 12px; font-size: 13px; color: rgba(244,241,234,0.6); }
  @media (max-width: 900px) {
    .hero .wrap { grid-template-columns: 1fr; gap: 36px; padding: 48px 0 56px; }
    .hero-media { order: -1; margin: 0 -24px; }
    .hero-media .frame { border-radius: 0; }
    .hero-media figcaption { padding: 0 24px; }
  }
  @media (max-width: 640px) {
    .hero-media { margin: 0 -16px; }
    .hero-media figcaption { padding: 0 16px; }
  }

  /* ----- facts ----- */
  .facts { padding: 0; border-bottom: 1px solid var(--line); }
  .facts .wrap { display: grid; grid-template-columns: repeat(4, 1fr); }
  .fact { padding: 26px 24px 26px 0; }
  .fact + .fact { border-left: 1px solid var(--line); padding-left: 24px; }
  .fact strong { display: block; font-weight: 600; font-size: 19px; letter-spacing: -0.015em; line-height: 1.25; }
  .fact span { display: block; margin-top: 4px; font-size: 14px; color: var(--muted); }
  @media (max-width: 900px) {
    .facts .wrap { grid-template-columns: 1fr 1fr; }
    .fact { padding: 22px 20px 22px 0 !important; border-left: 0 !important; }
    .fact:nth-child(even) { border-left: 1px solid var(--line) !important; padding-left: 20px !important; }
    .fact:nth-child(n+3) { border-top: 1px solid var(--line); }
  }
  @media (max-width: 480px) {
    .facts .wrap { grid-template-columns: 1fr; }
    .fact { border-left: 0 !important; padding-left: 0 !important; }
    .fact + .fact { border-top: 1px solid var(--line); }
  }

  /* ----- mission ----- */
  .mission .wrap { display: grid; grid-template-columns: 1.25fr 1fr; gap: 64px; align-items: start; }
  .mission h2 { font-size: clamp(26px, 2.9vw, 36px); max-width: 22ch; }
  .mission p { margin: 0; color: var(--muted); padding-top: 6px; }
  @media (max-width: 900px) { .mission .wrap { grid-template-columns: 1fr; gap: 24px; } }

  /* ----- capabilities ----- */
  .caps {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0 56px;
    margin-top: 40px; border-top: 1px solid var(--line);
  }
  .cap {
    display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 20px;
    padding: 20px 0; border-bottom: 1px solid var(--line);
  }
  .cap h3 { font-size: 16px; line-height: 1.35; }
  .cap p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.5; }
  @media (max-width: 900px) {
    .caps { grid-template-columns: 1fr; }
    .cap { grid-template-columns: 1fr; gap: 6px; }
  }

  /* ----- work ----- */
  .project {
    display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 40px;
    margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--line);
  }
  .project-meta h3 { font-size: 19px; }
  .project-meta .loc { margin: 4px 0 0; font-size: 14px; color: var(--gold-ink); font-weight: 500; }
  .project-meta .scope { margin: 14px 0 0; font-size: 15px; color: var(--muted); max-width: 32ch; }
  .mosaic { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: 1fr 1fr; gap: 12px; }
  .mosaic figure { margin: 0; }
  .mosaic figure:first-child { grid-row: span 2; }
  .mosaic .frame { height: 100%; aspect-ratio: 3 / 2; }
  .mosaic figure:not(:first-child) .frame { aspect-ratio: auto; }
  .mosaic img, .mosaic video { filter: saturate(0.94); }
  .mosaic.two { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .mosaic.two figure:first-child { grid-row: auto; }
  .mosaic.two .frame { aspect-ratio: 16 / 9; }
  @media (max-width: 900px) {
    .project { grid-template-columns: 1fr; gap: 20px; }
    .project-meta .scope { max-width: 60ch; }
  }
  @media (max-width: 520px) {
    .mosaic { grid-template-columns: 1fr 1fr; grid-template-rows: auto; gap: 8px; }
    .mosaic figure:first-child { grid-column: span 2; grid-row: auto; }
    .mosaic figure:not(:first-child) .frame { aspect-ratio: 3 / 2; }
    .mosaic.two { grid-template-columns: 1fr; }
  }

  /* ----- sectors ----- */
  .sectors-list { margin-top: 36px; border-top: 1px solid var(--line); }
  .sector {
    display: grid; grid-template-columns: 220px 1fr; gap: 24px;
    padding: 18px 0; border-bottom: 1px solid var(--line);
  }
  .sector h3 { font-size: 17px; }
  .sector p { margin: 0; color: var(--muted); font-size: 15px; max-width: 60ch; }
  @media (max-width: 640px) { .sector { grid-template-columns: 1fr; gap: 4px; } }

  /* ----- process ----- */
  .steps {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
    margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--line);
  }
  .step .n { display: block; font-weight: 600; font-size: 13px; color: var(--gold-ink); letter-spacing: 0.06em; margin-bottom: 12px; }
  .step h3 { font-size: 17px; margin-bottom: 8px; }
  .step p { margin: 0; color: var(--muted); font-size: 15px; }
  @media (max-width: 900px) { .steps { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 520px) { .steps { grid-template-columns: 1fr; gap: 24px; } }

  /* ----- safety ----- */
  .safety-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px;
    margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--line);
  }
  .safety-grid h3 { font-size: 17px; margin-bottom: 8px; }
  .safety-grid p { margin: 0; color: var(--muted); font-size: 15px; }
  @media (max-width: 900px) { .safety-grid { grid-template-columns: 1fr; gap: 28px; } }

  /* ----- contact ----- */
  .contact { padding: 88px 0 36px; }
  .contact h2 { font-size: clamp(26px, 2.8vw, 34px); max-width: 20ch; color: var(--bone); }
  .contact-mail { margin: 18px 0 0; font-size: 20px; font-weight: 500; }
  .contact-mail a { color: var(--gold); border-bottom: 1px solid var(--gold); padding-bottom: 2px; }
  .contact-mail a:hover { color: var(--bone); }
  .contact-note { margin: 12px 0 0; font-size: 15px; color: rgba(244,241,234,0.72); max-width: 56ch; }
  .contact-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
    margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--line-dark);
  }
  .contact-grid h3 {
    font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;
    color: var(--gold); margin-bottom: 10px;
  }
  .contact-grid p, .contact-grid a { margin: 0; display: block; font-size: 15px; line-height: 1.6; color: rgba(244,241,234,0.8); }
  .contact-grid a:hover { color: var(--gold); }
  .cobrand {
    display: inline-flex; align-items: center; gap: 14px; margin-top: 56px;
    color: rgba(244,241,234,0.72); font-size: 14px;
  }
  .cobrand img { display: block; height: 21px; width: auto; }
  .cobrand:hover { color: var(--gold); }
  .foot {
    margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line-dark);
    display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap;
    font-size: 13px; color: rgba(244,241,234,0.55);
  }
  @media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 520px) {
    .cobrand { align-items: flex-start; flex-direction: column; gap: 10px; }
    .contact-grid { grid-template-columns: 1fr; }
    section { padding: 60px 0; }
    .contact { padding-top: 64px; }
  }

  @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

  /* ----- subpages ----- */
  .page-head { padding: 64px 0 56px; }
  .page-head h1 { font-size: clamp(30px, 3.4vw, 42px); line-height: 1.1; letter-spacing: -0.02em; color: var(--bone); max-width: 20ch; }
  .page-head .lede { color: rgba(244,241,234,0.78); max-width: 60ch; font-size: 18px; }
  .page-head .crumb { margin: 0 0 14px; font-size: 13px; color: rgba(244,241,234,0.6); }
  .page-head .crumb a:hover { color: var(--gold); }
  .prose { max-width: 68ch; }
  .prose h2 { font-size: clamp(22px, 2.2vw, 26px); margin-top: 48px; }
  .prose h2:first-child { margin-top: 0; }
  .prose p { margin: 14px 0 0; color: var(--text); }
  .prose ul { margin: 14px 0 0; padding-left: 20px; }
  .prose li { margin: 6px 0; color: var(--text); }
  .prose li strong { font-weight: 600; }
  .two-col { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 64px; align-items: start; }
  .aside { border-top: 2px solid var(--ink); padding-top: 18px; font-size: 15px; }
  .aside h3 { font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--gold-ink); margin-bottom: 10px; }
  .aside p { margin: 0 0 10px; color: var(--muted); }
  .aside a { color: var(--text); font-weight: 500; border-bottom: 1px solid var(--gold); }
  .aside .btn { color: var(--ink); border-bottom: 0; margin-top: 8px; }
  .aside .btn:hover { background: var(--gold-ink); color: var(--bone); }
  .doc-list { list-style: none; margin: 24px 0 0; padding: 0; border-top: 1px solid var(--line); }
  .doc-list li { display: grid; grid-template-columns: 260px 1fr; gap: 24px; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
  .doc-list li strong { font-weight: 600; }
  .doc-list li span { color: var(--muted); }
  .cta-band { padding: 64px 0; }
  .cta-band h2 { color: var(--bone); font-size: clamp(24px, 2.6vw, 30px); max-width: 24ch; }
  .cta-band .contact-mail { margin-top: 14px; }
  .cta-band p { margin: 14px 0 0; color: rgba(244,241,234,0.72); max-width: 56ch; }
  .cta-band .cobrand { margin-top: 44px; }
  .cta-band .foot { margin-top: 28px; }
  @media (max-width: 900px) { .two-col { grid-template-columns: 1fr; gap: 36px; } }
  @media (max-width: 640px) { .doc-list li { grid-template-columns: 1fr; gap: 4px; } }
  .cap h3 a { border-bottom: 1px solid var(--gold); }
  .cap h3 a:hover { color: var(--gold-ink); }