:root{
    --bg:#ffffff;
    --panel:#ffffff;
    --ink:#16181c;
    --ink-soft:#5c6068;
    --ink-faint:#9a9ea6;
    --line:rgba(22,24,28,0.11);
    --line-soft:rgba(22,24,28,0.065);
    --brass:#01758C;
    --brass-deep:#015a6b;
    --safe-t:env(safe-area-inset-top,0px);
    --safe-b:env(safe-area-inset-bottom,0px);
  }
  *{box-sizing:border-box;}
  html{height:100%;}
  html:not([data-theme="light"]){ }
  body{
    margin:0; min-height:100%; background:var(--bg); color:var(--ink);
    font-family:'Inter',-apple-system,sans-serif; font-weight:400;
    padding-top:var(--safe-t); padding-bottom:var(--safe-b);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,.serif{ font-family:'Newsreader',serif; font-weight:500; letter-spacing:-0.01em; }
  em{ font-style:italic; color:var(--brass-deep); }
  a{ color:inherit; text-decoration:none; }
  img{ max-width:100%; display:block; }
  .wrap{ max-width:1040px; margin:0 auto; padding:0 32px; }
  .eyebrow{ font-size:11.5px; font-weight:600; color:var(--brass-deep); text-transform:uppercase; letter-spacing:0.14em; margin:0 0 16px; }
  hr.line{ border:none; border-top:1px solid var(--line); margin:0; }

  /* ===== Header / persistent nav ===== */
  header{ position:sticky; top:var(--safe-t); z-index:60; background:rgba(255,255,255,0.9); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px); border-bottom:1px solid var(--line); }
  .nav{ display:flex; align-items:center; justify-content:space-between; padding:22px 32px; max-width:1040px; margin:0 auto; }
  .brand{ display:flex; align-items:baseline; gap:9px; }
  .brand{ align-items:center; }
  .brand .mark{ font-family:'Inter'; font-size:15px; font-weight:800; letter-spacing:0.02em; background:#01758C; color:#fff; padding:7px 10px 7px 12px; border-radius:7px; display:inline-flex; align-items:center; gap:4px; }
  .brand .mark svg{ width:11px; height:15px; }
  .brand .sub{ font-size:10.5px; color:var(--ink-faint); letter-spacing:0.08em; text-transform:uppercase; }
  nav.links{ display:flex; align-items:center; gap:36px; }
  nav.links a{ font-size:13px; font-weight:500; color:var(--ink-soft); letter-spacing:0.02em; padding:4px 0; position:relative; }
  nav.links a::after{ content:""; position:absolute; left:0; right:0; bottom:-3px; height:1px; background:var(--brass); transform:scaleX(0); transform-origin:left; transition:transform .25s ease; }
  nav.links a:hover{ color:var(--ink); }
  nav.links a:hover::after{ transform:scaleX(1); }
  nav.links a.active{ color:var(--ink); }
  nav.links a.active::after{ transform:scaleX(1); }
  .nav-right{ display:flex; align-items:center; gap:22px; }
  .phone-link{ font-size:13px; font-weight:500; color:var(--ink-soft); }
  .phone-link:hover{ color:var(--brass-deep); }
  .btn{
    display:inline-flex; align-items:center; gap:9px; padding:11px 22px; font-size:12.5px; font-weight:600;
    letter-spacing:0.04em; text-transform:uppercase; border:1px solid var(--ink); border-radius:999px; cursor:pointer;
    transition:all .2s ease; background:transparent; color:var(--ink);
  }
  .btn:hover{ background:var(--ink); color:var(--bg); }
  .btn-solid{ background:var(--ink); color:var(--bg); }
  .btn-solid:hover{ background:var(--brass-deep); border-color:var(--brass-deep); }
  .menu-toggle{ display:none; background:none; border:1px solid var(--line); border-radius:999px; width:40px; height:40px; align-items:center; justify-content:center; color:var(--ink); }
  .mobile-panel{ display:none; flex-direction:column; border-top:1px solid var(--line); padding:8px 32px 20px; }
  .mobile-panel a{ padding:14px 2px; font-size:15px; font-weight:500; border-bottom:1px solid var(--line-soft); color:var(--ink-soft); }

  @media (max-width:820px){
    nav.links{ display:none; }
    .nav-right .phone-link{ display:none; }
    .menu-toggle{ display:flex; }
  }

  /* ===== Page shell ===== */
  .page{ display:none; }
  .page.active{ display:block; animation: fadeIn .5s ease; }
  @keyframes fadeIn{ from{ opacity:0; transform:translateY(8px);} to{ opacity:1; transform:none;} }
  section{ padding:96px 0; }
  section.tight{ padding:64px 0; }
  section.bordered{ border-top:1px solid var(--line); }

  .cta-teal{ background:#01758C; }
  .btn-white{ background:#fff; color:#01758C; border-color:#fff; }
  .btn-white:hover{ background:transparent; color:#fff; border-color:#fff; }

  /* ===== Hero (home) ===== */
  .hero{ padding:104px 0 88px; text-align:center; }
  .hero .eyebrow{ display:flex; align-items:center; justify-content:center; gap:10px; }
  .hero .eyebrow .ln{ width:26px; height:1px; background:var(--brass); }
  .hero h1{ font-size:clamp(38px,6.2vw,66px); line-height:1.06; margin:0 auto 26px; max-width:16ch; }
  .hero p.lead{ font-size:17.5px; color:var(--ink-soft); max-width:52ch; margin:0 auto 40px; line-height:1.7; }
  .hero-cta{ display:flex; gap:16px; justify-content:center; flex-wrap:wrap; margin-bottom:64px; }
  .hero-mark{ width:78px; margin:0 auto; opacity:0.9; }

  .stat-line{ display:flex; justify-content:center; gap:0; flex-wrap:wrap; }
  .stat-cell{ padding:0 40px; text-align:center; border-left:1px solid var(--line); }
  .stat-cell:first-child{ border-left:none; }
  .stat-cell b{ display:block; font-family:'Newsreader'; font-size:28px; font-weight:500; }
  .stat-cell span{ font-size:11px; color:var(--ink-faint); text-transform:uppercase; letter-spacing:0.08em; }
  @media (max-width:680px){ .stat-cell{ padding:14px 22px; border-left:none; border-top:1px solid var(--line); flex:1 1 40%; } .stat-cell:first-child{ border-top:none; } }

  /* Services preview (home) */
  .sec-head{ text-align:center; max-width:560px; margin:0 auto 56px; }
  .sec-head h2{ font-size:clamp(26px,3.4vw,36px); margin:0 0 14px; }
  .sec-head p{ color:var(--ink-soft); font-size:15.5px; line-height:1.65; margin:0; }
  .preview-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
  @media (max-width:760px){ .preview-grid{ grid-template-columns:1fr; } }
  .preview-cell{ background:var(--panel); padding:38px 32px; }
  .preview-cell .num{ font-size:11px; color:var(--ink-faint); letter-spacing:0.08em; margin-bottom:16px; }
  .preview-cell h3{ font-size:19px; margin:0 0 10px; }
  .preview-cell p{ font-size:14px; color:var(--ink-soft); line-height:1.6; margin:0; }

  /* ===== About page ===== */
  .about-grid{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:70px; align-items:start; }
  @media (max-width:860px){ .about-grid{ grid-template-columns:1fr; gap:44px; } }
  .about-quote{ font-family:'Newsreader'; font-style:italic; font-size:clamp(22px,2.6vw,28px); line-height:1.5; margin:0; }
  .about-copy p{ font-size:15.5px; line-height:1.8; color:var(--ink-soft); margin:0 0 20px; }
  .about-copy b{ color:var(--ink); font-weight:600; }
  .cred-list{ list-style:none; margin:34px 0 0; padding:0; display:grid; gap:16px; }
  .cred-list li{ display:flex; gap:14px; align-items:flex-start; font-size:14px; color:var(--ink-soft); border-top:1px solid var(--line); padding-top:16px; }
  .cred-list li:first-child{ border-top:none; padding-top:0; }
  .cred-list b{ color:var(--ink); font-weight:600; }

  /* ===== Services page ===== */
  .svc-full{ }
  .svc-item{ padding:44px 0; border-top:1px solid var(--line); display:grid; grid-template-columns:80px 1fr; gap:30px; }
  .svc-item:last-child{ border-bottom:1px solid var(--line); }
  .svc-item .num{ font-family:'Newsreader'; font-size:22px; color:var(--ink-faint); font-weight:400; }
  .svc-item h3{ font-size:23px; margin:0 0 10px; }
  .svc-item p{ font-size:15px; color:var(--ink-soft); line-height:1.75; margin:0 0 14px; max-width:66ch; }
  .svc-item .meta{ display:flex; flex-wrap:wrap; gap:8px; }
  .svc-item .meta span{ font-size:11px; color:var(--brass-deep); border:1px solid var(--line); border-radius:999px; padding:5px 13px; letter-spacing:0.02em; }
  @media (max-width:640px){ .svc-item{ grid-template-columns:1fr; gap:10px; } }

  .sector-band{ text-align:center; }
  .sector-band .list{ display:flex; flex-wrap:wrap; justify-content:center; gap:10px 0; font-family:'Newsreader'; font-size:clamp(19px,2.6vw,25px); font-style:italic; color:var(--ink-soft); }
  .sector-band .list span:not(:last-child)::after{ content:"·"; margin:0 16px; color:var(--brass); font-style:normal; }

  /* ===== Contact page ===== */
  .contact-grid{ display:grid; grid-template-columns:1.1fr 0.9fr; gap:70px; align-items:start; }
  @media (max-width:860px){ .contact-grid{ grid-template-columns:1fr; gap:44px; } }
  .field{ margin-bottom:28px; }
  .field label{ display:block; font-size:11px; font-weight:600; color:var(--ink-faint); text-transform:uppercase; letter-spacing:0.08em; margin-bottom:10px; }
  .field-row{ display:grid; grid-template-columns:1fr 1fr; gap:22px; }
  input, textarea{
    width:100%; background:transparent; border:none; border-bottom:1px solid var(--line);
    padding:10px 2px; color:var(--ink); font-family:'Inter'; font-size:16px; border-radius:0;
  }
  input::placeholder, textarea::placeholder{ color:var(--ink-faint); }
  input:focus, textarea:focus{ outline:none; border-color:var(--brass); }
  textarea{ resize:vertical; }
  .chip-group{ display:flex; flex-wrap:wrap; gap:9px; }
  .chip{ font-size:12px; padding:8px 16px; border:1px solid var(--line); border-radius:999px; color:var(--ink-soft); cursor:pointer; user-select:none; transition:all .18s ease; }
  .chip.active,.chip:hover{ border-color:var(--brass); color:var(--brass-deep); background:rgba(1,117,140,0.07); }

  .info-list{ }
  .info-item{ padding:24px 0; border-top:1px solid var(--line); }
  .info-item:first-child{ border-top:none; padding-top:0; }
  .info-item .k{ font-size:11px; color:var(--ink-faint); text-transform:uppercase; letter-spacing:0.08em; margin-bottom:8px; }
  .info-item .v{ font-family:'Newsreader'; font-size:20px; }
  .info-item .v a:hover{ color:var(--brass-deep); }
  .social-row{ display:flex; gap:10px; margin-top:30px; }
  .social-row a{ width:40px; height:40px; border:1px solid var(--line); border-radius:999px; display:flex; align-items:center; justify-content:center; color:var(--ink-soft); transition:all .18s ease; }
  .social-row a:hover{ border-color:var(--brass); color:var(--brass-deep); }

  footer{ border-top:1px solid var(--line); padding:36px 0 calc(36px + var(--safe-b)); }
  .foot-row{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px; }
  .foot-row p{ margin:0; font-size:12px; color:var(--ink-faint); }
  .foot-links{ display:flex; gap:24px; font-size:12px; color:var(--ink-faint); }
  .foot-links a:hover{ color:var(--ink); }
  .form-msg{margin-top:14px;font-size:14px;padding:12px 14px;border-radius:8px;display:none}
  .form-msg.ok{display:block;background:rgba(1,117,140,.08);color:var(--brass-deep)}
  .form-msg.err{display:block;background:#fbeae8;color:#a02c20}
  nav.links a[aria-current]{color:var(--ink)}
  nav.links a[aria-current]::after{transform:scaleX(1)}
  .mobile-panel a[aria-current]{color:var(--ink)}
  .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
  button[disabled]{opacity:.6;cursor:wait}

  .brand .logo-img{ height:36px; width:auto; display:block; }
  .nav-right .btn{ white-space:nowrap; }
  @media (max-width:820px){ .nav{ padding:14px 16px; gap:12px; } .nav-right{ margin-left:auto; } .nav-right .btn{ padding:9px 16px; font-size:11.5px; } .brand .logo-img{ height:32px; } .mobile-panel{ padding:8px 16px 20px; } }
  @media (max-width:560px){ .brand .sub{ display:none; } }