:root{
    --ink:#0E1A2B;
    --slate:#17263B;
    --steel:#33506F;
    --steel-soft:#5C7796;
    --line:#C9D3DF;
    --line-dark:#25384F;
    --paper:#F3F5F8;
    --paper-warm:#FBFBF9;
    --brass:#BE8626;
    --brass-bright:#DBA53C;
    --text:#0E1A2B;
    --text-mut:#4C5D72;
    --text-inv:#E9EEF4;
    --text-inv-mut:#9DB0C6;
    --maxw:1180px;
    --display:"Archivo",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    --body:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
    --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  }

  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:var(--body);
    color:var(--text);
    background:var(--paper-warm);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  ::selection{background:var(--brass);color:#fff}

  /* ---------- layout helpers ---------- */
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}
  .eyebrow{
    font-family:var(--mono);
    font-size:.72rem;
    letter-spacing:.22em;
    text-transform:uppercase;
    color:var(--brass);
    display:inline-block;
  }
  .eyebrow.on-dark{color:var(--brass-bright)}

  /* ---------- nav ---------- */
  header.nav{
    position:sticky;top:0;z-index:100;
    background:rgba(14,26,43,.92);
    backdrop-filter:saturate(140%) blur(10px);
    border-bottom:1px solid var(--line-dark);
  }
  .nav-inner{
    max-width:var(--maxw);margin:0 auto;padding:0 32px;
    height:70px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  }
  .brand{display:flex;align-items:center;gap:12px;cursor:pointer;background:none;border:none;text-align:left}
  .brand-mark{width:26px;height:26px;flex:none}
  .brand-txt{display:flex;flex-direction:column;line-height:1.1}
  .brand-name{font-family:var(--display);font-weight:800;font-size:.86rem;letter-spacing:.02em;color:var(--text-inv)}
  .brand-sub{font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--text-inv-mut);margin-top:2px}

  .menu{display:flex;align-items:center;gap:4px}
  .menu-link{
    font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;
    color:var(--text-inv-mut);background:none;border:none;cursor:pointer;
    padding:10px 14px;border-radius:2px;transition:color .2s;position:relative;
  }
  .menu-link:hover,.menu-link.active{color:var(--text-inv)}
  .menu-link.active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--brass-bright);
  }
  .has-drop{position:relative}
  .drop{
    position:absolute;top:calc(100% + 6px);left:0;min-width:290px;
    background:var(--slate);border:1px solid var(--line-dark);border-radius:4px;
    padding:8px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.18s;
    box-shadow:0 20px 50px rgba(0,0,0,.4);
  }
  .has-drop:hover .drop,.has-drop:focus-within .drop{opacity:1;visibility:visible;transform:translateY(0)}
  .drop-item{
    display:block;width:100%;text-align:left;background:none;border:none;cursor:pointer;
    padding:11px 14px;border-radius:3px;color:var(--text-inv);font-family:var(--body);font-size:.86rem;
    transition:background .15s;
  }
  .drop-item:hover{background:var(--ink)}
  .drop-item span{display:block;font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--brass-bright);margin-bottom:3px}

  .nav-cta{
    font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
    background:var(--brass);color:#fff;border:none;cursor:pointer;
    padding:11px 18px;border-radius:3px;transition:background .2s;
  }
  .nav-cta:hover{background:var(--brass-bright)}
  .burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
  .burger span{width:22px;height:2px;background:var(--text-inv);transition:.2s}

  /* ---------- pages ---------- */
  .page{display:block}
  
  @keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

  /* ---------- hero ---------- */
  .hero{
    background:var(--ink);color:var(--text-inv);position:relative;overflow:hidden;
    padding:96px 0 0;
  }
  .hero-grid{
    position:absolute;inset:0;
    background-image:
      linear-gradient(var(--line-dark) 1px,transparent 1px),
      linear-gradient(90deg,var(--line-dark) 1px,transparent 1px);
    background-size:64px 64px;
    opacity:.35;
    mask-image:radial-gradient(ellipse 90% 80% at 70% 0%,#000 20%,transparent 75%);
    -webkit-mask-image:radial-gradient(ellipse 90% 80% at 70% 0%,#000 20%,transparent 75%);
  }
  .hero-inner{position:relative;max-width:var(--maxw);margin:0 auto;padding:0 32px}
  .hero-h1{
    font-family:var(--display);font-weight:800;
    font-size:clamp(2.5rem,6vw,4.6rem);line-height:1.02;letter-spacing:-.02em;
    margin:24px 0 0;max-width:16ch;
  }
  .hero-h1 em{font-style:normal;color:var(--brass-bright)}
  .hero-lead{
    font-size:1.15rem;color:var(--text-inv-mut);max-width:52ch;margin-top:26px;line-height:1.65;
  }
  .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:36px}
  .btn{
    font-family:var(--mono);font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;
    padding:15px 26px;border-radius:3px;cursor:pointer;border:1px solid transparent;transition:.2s;
  }
  .btn-primary{background:var(--brass);color:#fff}
  .btn-primary:hover{background:var(--brass-bright)}
  .btn-ghost{background:transparent;color:var(--text-inv);border-color:var(--steel)}
  .btn-ghost:hover{border-color:var(--brass-bright);color:var(--brass-bright)}

  /* ---------- project spine (signature) ---------- */
  .spine{position:relative;max-width:var(--maxw);margin:70px auto 0;padding:0 32px 70px}
  .spine-svg{display:block;width:100%;height:auto;overflow:visible}
  .spine-beam{stroke:var(--steel);stroke-width:2}
  .spine-draw{stroke:var(--brass-bright);stroke-width:2;fill:none;
    stroke-dasharray:1000;stroke-dashoffset:1000;animation:draw 1.6s ease forwards .3s}
  @keyframes draw{to{stroke-dashoffset:0}}
  .spine-node{fill:var(--ink);stroke:var(--brass-bright);stroke-width:2}
  .spine-glyph{fill:none;stroke:var(--brass-bright);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
  .spine-tick{stroke:var(--steel);stroke-width:1.5}
  .spine-labels{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:26px}
  .spine-step-num{font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;color:var(--brass-bright);text-transform:uppercase}
  .spine-step-t{font-family:var(--display);font-weight:700;font-size:1.15rem;color:var(--text-inv);margin:6px 0}
  .spine-step-d{font-size:.9rem;color:var(--text-inv-mut);line-height:1.55}

  /* ---------- generic section ---------- */
  section.band{padding:88px 0}
  .band.paper{background:var(--paper)}
  .band.warm{background:var(--paper-warm)}
  .band.ink{background:var(--ink);color:var(--text-inv)}
  .kicker{max-width:720px}
  h2.sec{
    font-family:var(--display);font-weight:700;
    font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.08;letter-spacing:-.015em;
    margin:16px 0 0;
  }
  .band.ink h2.sec{color:var(--text-inv)}
  .lede{font-size:1.12rem;color:var(--text-mut);margin-top:22px;max-width:66ch;line-height:1.7}
  .band.ink .lede{color:var(--text-inv-mut)}
  p.body{font-size:1.02rem;color:var(--text-mut);margin-top:18px;max-width:70ch;line-height:1.75}
  .band.ink p.body{color:var(--text-inv-mut)}

  /* ---------- who: two col ---------- */
  .split{display:grid;grid-template-columns:1.35fr .9fr;gap:64px;align-items:start;margin-top:44px}
  .who-card{
    background:var(--ink);color:var(--text-inv);border-radius:6px;padding:34px;position:relative;overflow:hidden;
  }
  .who-card .eyebrow{margin-bottom:14px}
  .who-motto{font-family:var(--display);font-weight:700;font-size:1.5rem;line-height:1.2;letter-spacing:-.01em}
  .who-motto em{font-style:normal;color:var(--brass-bright)}
  .who-fact{display:flex;gap:14px;padding:18px 0;border-top:1px solid var(--line-dark)}
  .who-fact:first-of-type{margin-top:26px}
  .who-fact-k{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brass-bright);flex:none;width:96px;padding-top:2px}
  .who-fact-v{font-size:.92rem;color:var(--text-inv)}

  /* ---------- service overview cards ---------- */
  .svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:48px}
  .svc-card{
    background:var(--paper-warm);border:1px solid var(--line);border-radius:6px;
    padding:30px 26px;cursor:pointer;transition:.2s;text-align:left;position:relative;overflow:hidden;
    display:flex;flex-direction:column;
  }
  .svc-card:hover{border-color:var(--brass);transform:translateY(-3px);box-shadow:0 18px 40px rgba(14,26,43,.1)}
  .svc-stage{font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--brass)}
  .svc-num{font-family:var(--mono);font-size:.78rem;color:var(--steel-soft);float:right}
  .svc-card h3{font-family:var(--display);font-weight:700;font-size:1.22rem;line-height:1.2;margin:16px 0 12px;color:var(--ink)}
  .svc-card p{font-size:.94rem;color:var(--text-mut);line-height:1.6;flex:1}
  .svc-more{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--brass);margin-top:20px}

  /* ---------- service detail ---------- */
  .detail-hero{background:var(--ink);color:var(--text-inv);padding:78px 0 66px;position:relative;overflow:hidden}
  .detail-hero .hero-grid{opacity:.28}
  .detail-h1{font-family:var(--display);font-weight:800;font-size:clamp(2.1rem,4.6vw,3.4rem);line-height:1.05;letter-spacing:-.02em;margin-top:18px;max-width:20ch}
  .detail-sub{font-size:1.12rem;color:var(--text-inv-mut);max-width:60ch;margin-top:22px;line-height:1.65}

  .feat-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px;margin-top:44px;background:var(--line);border:1px solid var(--line);border-radius:6px;overflow:hidden}
  .feat{background:var(--paper-warm);padding:28px 26px}
  .feat-k{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brass);display:flex;align-items:center;gap:10px}
  .feat-k b{font-weight:500}
  .feat-dot{width:7px;height:7px;background:var(--brass);border-radius:50%;flex:none}
  .feat h4{font-family:var(--display);font-weight:700;font-size:1.08rem;margin:12px 0 8px;color:var(--ink)}
  .feat p{font-size:.94rem;color:var(--text-mut);line-height:1.6}

  .callout{
    background:var(--slate);color:var(--text-inv);border-left:3px solid var(--brass);
    border-radius:0 6px 6px 0;padding:32px 34px;margin-top:44px;
  }
  .callout .eyebrow{margin-bottom:12px}
  .callout p{font-size:1.06rem;color:var(--text-inv);line-height:1.7;max-width:72ch}

  /* region strip */
  .region{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:center;margin-top:44px}
  .region-map{width:100%;height:auto}

  /* ---------- lifecycle strip on services ---------- */
  .flow{display:flex;align-items:stretch;gap:0;margin-top:48px;flex-wrap:wrap}
  .flow-step{flex:1;min-width:220px;padding:26px 24px;border:1px solid var(--line-dark);background:var(--slate);border-radius:6px;margin:6px}
  .flow-step .n{font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;color:var(--brass-bright);text-transform:uppercase}
  .flow-step h4{font-family:var(--display);font-weight:700;font-size:1.12rem;color:var(--text-inv);margin:10px 0 8px}
  .flow-step p{font-size:.9rem;color:var(--text-inv-mut);line-height:1.55}

  /* ---------- contact ---------- */
  .contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;margin-top:44px}
  .field{margin-bottom:18px}
  .field label{display:block;font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text-mut);margin-bottom:7px}
  .field input,.field textarea{
    width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:4px;
    font-family:var(--body);font-size:.96rem;color:var(--ink);background:#fff;transition:border .2s;
  }
  .field input:focus,.field textarea:focus{outline:none;border-color:var(--brass)}
  .field textarea{resize:vertical;min-height:120px}
  .contact-info dt{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brass);margin-top:22px}
  .contact-info dd{font-size:1rem;color:var(--text);margin-top:6px;line-height:1.6}
  .map-embed{width:100%;height:240px;border:0;border-radius:6px;margin-top:28px;filter:grayscale(.3)}

  /* ---------- footer ---------- */
  footer{background:var(--ink);color:var(--text-inv-mut);padding:56px 0 34px;border-top:1px solid var(--line-dark)}
  .foot-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
  .foot-brand{max-width:300px}
  .foot-brand .brand-name{color:var(--text-inv);font-size:1rem}
  .foot-motto{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;color:var(--brass-bright);margin-top:12px}
  .foot-cols{display:flex;gap:56px;flex-wrap:wrap}
  .foot-col h5{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-inv);margin-bottom:14px}
  .foot-col button{display:block;background:none;border:none;color:var(--text-inv-mut);cursor:pointer;font-family:var(--body);font-size:.9rem;padding:5px 0;text-align:left;transition:color .15s}
  .foot-col button:hover{color:var(--brass-bright)}
  .foot-bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--line-dark);font-size:.8rem;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

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

  /* ---------- responsive ---------- */
  @media(max-width:900px){
    .menu{
      position:fixed;top:70px;left:0;right:0;background:var(--slate);
      flex-direction:column;align-items:stretch;padding:12px;gap:2px;
      border-bottom:1px solid var(--line-dark);display:none;
    }
    .menu.open{display:flex}
    .menu-link{text-align:left;padding:14px 16px}
    .menu-link.active::after{display:none}
    .has-drop{position:static}
    .drop{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:var(--ink);margin:2px 0 6px;display:block}
    .nav-cta{display:none}
    .burger{display:flex}
    .split,.contact-grid,.region{grid-template-columns:1fr;gap:36px}
    .svc-grid{grid-template-columns:1fr}
    .feat-grid{grid-template-columns:1fr}
    .spine-labels{grid-template-columns:1fr}
  }
  @media(prefers-reduced-motion:reduce){
    .spine-draw{animation:none;stroke-dashoffset:0}
    .page{animation:none}
    html{scroll-behavior:auto}
  }

  /* anchor-based navigation overrides (multi-page) */
  a.brand,.menu-link,.drop-item,a.nav-cta,.foot-col a{text-decoration:none}
  a.brand{color:inherit}
  a.nav-cta{display:inline-block}
  a.btn{display:inline-block;text-decoration:none}
  a.svc-card{text-decoration:none;color:inherit}
  .foot-col a{display:block;background:none;border:none;color:var(--text-inv-mut);cursor:pointer;font-family:var(--body);font-size:.9rem;padding:5px 0;text-align:left;transition:color .15s}
  .foot-col a:hover{color:var(--brass-bright)}