:root{
    --ink:#0C1A21;
    --ink-2:#0F2129;
    --ink-3:#12262F;
    --paper:#EAEFF0;
    --paper-2:#F3F6F6;
    --hydro:#1CA39B;
    --hydro-bright:#46D3C7;
    --flood:#E08A3C;
    --flood-deep:#C46A2A;
    --line-dark:#223B44;
    --line-light:#CAD6D8;
    --t-on-ink:#DCE7E8;
    --t-on-ink-mute:#7E969D;
    --t-dark:#12262F;
    --t-mute:#54696F;
    --disp:"Archivo Expanded","Archivo",sans-serif;
    --body:"Archivo",system-ui,sans-serif;
    --mono:"IBM Plex Mono",ui-monospace,monospace;
    --maxw:1240px;
  }

  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:var(--body);
    background:var(--ink);
    color:var(--t-dark);
    -webkit-font-smoothing:antialiased;
    line-height:1.55;
    overflow-x:hidden;
  }
  a{color:inherit;text-decoration:none}
  img,svg{display:block}

  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}

  .mono{font-family:var(--mono);font-weight:500;letter-spacing:.04em}
  .eyebrow{
    font-family:var(--mono);font-size:12px;font-weight:500;
    letter-spacing:.22em;text-transform:uppercase;
  }

  /* ---------- NAV ---------- */
  .nav{
    position:fixed;top:0;left:0;right:0;z-index:50;
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 32px;
    background:rgba(12,26,33,0);
    border-bottom:1px solid rgba(34,59,68,0);
    transition:background .35s ease,border-color .35s ease,padding .35s ease;
  }
  .nav.scrolled{
    background:rgba(11,24,30,.86);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line-dark);
    padding:12px 32px;
  }
  .brand{display:flex;align-items:center;gap:12px;color:var(--t-on-ink)}
  .brand .glyph{
    width:34px;height:34px;flex:none;
  }
  .glyph svg{width:100%;height:100%;display:block}
  .brand .name{
    font-family:var(--disp);font-weight:700;font-size:19px;
    letter-spacing:.02em;line-height:1;
  }
  .brand .name small{
    display:block;font-family:var(--mono);font-weight:400;
    font-size:9.5px;letter-spacing:.28em;color:var(--t-on-ink-mute);
    margin-top:3px;text-transform:uppercase;
  }
  .nav-links{display:flex;align-items:center;gap:30px}
  .nav-links a{
    font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;
    color:var(--t-on-ink-mute);transition:color .2s;
  }
  .nav-links a:hover{color:var(--hydro-bright)}
  .nav-cta{
    font-family:var(--mono);font-size:12.5px;letter-spacing:.04em;
    color:var(--ink)!important;background:var(--hydro-bright);
    padding:9px 16px;border-radius:2px;transition:background .2s,transform .2s;
  }
  .nav-cta:hover{background:#fff;transform:translateY(-1px)}
  .nav-burger{display:none;background:none;border:1px solid var(--line-dark);color:var(--t-on-ink);
    font-family:var(--mono);font-size:12px;padding:8px 12px;border-radius:2px;cursor:pointer}

  /* ---------- HERO ---------- */
  .hero{
    position:relative;min-height:100svh;
    background:
      radial-gradient(120% 90% at 78% 8%, #12303a 0%, var(--ink) 55%),
      var(--ink);
    display:flex;align-items:center;overflow:hidden;
    border-bottom:1px solid var(--line-dark);
  }
  #delta{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
  .hero-scrim{
    position:absolute;inset:0;
    background:linear-gradient(90deg, rgba(12,26,33,.92) 0%, rgba(12,26,33,.72) 38%, rgba(12,26,33,.15) 72%, rgba(12,26,33,0) 100%);
    pointer-events:none;
  }
  .hero-inner{position:relative;z-index:2;padding:150px 0 90px}
  .hero-eyebrow{color:var(--hydro-bright);margin-bottom:26px;display:flex;align-items:center;gap:14px}
  .hero-eyebrow::before{content:"";width:42px;height:1px;background:var(--hydro)}
  .hero h1{
    font-family:var(--disp);color:var(--t-on-ink);
    font-weight:700;font-size:clamp(2.6rem,6.4vw,5.2rem);
    line-height:.98;letter-spacing:-.01em;max-width:16ch;
  }
  .hero h1 em{font-style:normal;color:var(--hydro-bright)}
  .hero p.lead{
    color:var(--t-on-ink);opacity:.82;font-size:clamp(1.02rem,1.6vw,1.28rem);
    max-width:52ch;margin-top:28px;line-height:1.6;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:40px}
  .btn{
    font-family:var(--mono);font-size:13px;letter-spacing:.03em;
    padding:15px 26px;border-radius:2px;cursor:pointer;
    transition:transform .2s,background .2s,color .2s,border-color .2s;
    display:inline-flex;align-items:center;gap:10px;border:1px solid transparent;
  }
  .btn-primary{background:var(--hydro);color:#03181a}
  .btn-primary:hover{background:var(--hydro-bright);transform:translateY(-2px)}
  .btn-ghost{border-color:var(--line-dark);color:var(--t-on-ink)}
  .btn-ghost:hover{border-color:var(--hydro-bright);color:var(--hydro-bright)}
  .btn .arr{transition:transform .2s}
  .btn:hover .arr{transform:translateX(4px)}

  .hero-foot{
    position:absolute;bottom:0;left:0;right:0;z-index:2;
    border-top:1px solid var(--line-dark);
    background:rgba(9,20,26,.5);backdrop-filter:blur(4px);
  }
  .hero-foot .wrap{display:flex;justify-content:space-between;align-items:center;
    flex-wrap:wrap;gap:8px;padding-top:12px;padding-bottom:12px}
  .hero-foot span{font-family:var(--mono);font-size:11px;letter-spacing:.14em;
    text-transform:uppercase;color:var(--t-on-ink-mute)}
  .hero-foot b{color:var(--hydro-bright);font-weight:500}

  /* ---------- METRICS ---------- */
  .metrics{background:var(--ink-2);border-bottom:1px solid var(--line-dark)}
  .metrics .grid{
    display:grid;grid-template-columns:repeat(4,1fr);
  }
  .metric{padding:40px 28px;border-left:1px solid var(--line-dark)}
  .metric:first-child{border-left:none}
  .metric .num{font-family:var(--disp);font-weight:700;color:var(--t-on-ink);
    font-size:clamp(2rem,3.6vw,2.9rem);line-height:1;letter-spacing:-.01em}
  .metric .num i{font-style:normal;color:var(--hydro-bright);font-size:.6em;margin-left:2px}
  .metric .lbl{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;
    text-transform:uppercase;color:var(--t-on-ink-mute);margin-top:12px;line-height:1.4}

  /* ---------- SECTION SHELL ---------- */
  .section{padding:110px 0}
  .section.light{background:var(--paper);color:var(--t-dark)}
  .section.dark{background:var(--ink);color:var(--t-on-ink)}
  .sec-head{max-width:var(--maxw);margin:0 auto;padding:0 32px;margin-bottom:60px}
  .sec-head .eyebrow{color:var(--hydro)}
  .section.dark .sec-head .eyebrow{color:var(--hydro-bright)}
  .sec-head h2{
    font-family:var(--disp);font-weight:700;
    font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.04;
    letter-spacing:-.01em;margin-top:18px;max-width:20ch;
  }
  .sec-head p{margin-top:18px;max-width:60ch;color:var(--t-mute);font-size:1.05rem}
  .section.dark .sec-head p{color:var(--t-on-ink-mute)}

  /* ---------- ABOUT ---------- */
  .section.light + .section.light{border-top:1px solid var(--line-light)}
  .about-wrap{
    max-width:var(--maxw);margin:0 auto;padding:0 32px;
    display:grid;grid-template-columns:1.2fr .85fr;gap:64px;align-items:start;
  }
  .about-lead .eyebrow{color:var(--hydro)}
  .about-lead h2{
    font-family:var(--disp);font-weight:700;
    font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.04;letter-spacing:-.01em;
    margin-top:18px;max-width:18ch;color:var(--t-dark);
  }
  .about-lead p{margin-top:20px;color:var(--t-mute);font-size:1.05rem;max-width:54ch;line-height:1.65}
  .about-lead p:first-of-type{color:var(--t-dark)}
  .profile{background:var(--ink);border:1px solid var(--line-dark);border-radius:3px;overflow:hidden}
  .profile-head{
    font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
    color:var(--hydro-bright);padding:16px 20px;border-bottom:1px solid var(--line-dark);
  }
  .prow{display:flex;justify-content:space-between;gap:16px;padding:14px 20px;border-bottom:1px solid var(--line-dark)}
  .prow:last-child{border-bottom:none}
  .prow .k{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--t-on-ink-mute)}
  .prow .v{font-family:var(--mono);font-size:13px;color:var(--t-on-ink);text-align:right}
  .prow .v.accent{color:var(--hydro-bright)}

  /* ---------- SERVICES ---------- */
  .svc-grid{
    max-width:var(--maxw);margin:0 auto;padding:0 32px;
    display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
    background:var(--line-light);border:1px solid var(--line-light);
  }
  .svc{
    background:var(--paper-2);padding:38px 34px 34px;
    position:relative;transition:background .3s;
  }
  .svc:hover{background:#fff}
  .svc-top{display:flex;justify-content:space-between;align-items:flex-start;gap:18px}
  .svc-code{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;
    color:var(--hydro);border:1px solid var(--hydro);padding:4px 9px;border-radius:2px;
    white-space:nowrap;background:rgba(28,163,155,.06)}
  .svc.flood .svc-code{color:var(--flood-deep);border-color:var(--flood);background:rgba(224,138,60,.08)}
  .svc-diagram{width:118px;height:88px;flex:none}
  .svc h3{font-family:var(--disp);font-weight:700;font-size:1.42rem;
    margin-top:26px;letter-spacing:-.01em}
  .svc p{color:var(--t-mute);margin-top:12px;font-size:.97rem;line-height:1.6}
  .svc ul{list-style:none;margin-top:20px;display:flex;flex-wrap:wrap;gap:8px}
  .svc li{font-family:var(--mono);font-size:11px;letter-spacing:.03em;
    color:var(--t-mute);border:1px solid var(--line-light);
    padding:5px 9px;border-radius:2px;background:var(--paper)}

  /* diagram animation hooks */
  .svc-diagram .ground{stroke:var(--line-light);stroke-width:1.4}
  .svc-diagram .draw{stroke:var(--t-mute);stroke-width:1.6;fill:none;
    stroke-linecap:round;stroke-linejoin:round}
  .svc-diagram .water{fill:var(--hydro);opacity:.9;transform:translateY(14px);transition:transform .5s cubic-bezier(.2,.8,.2,1)}
  .svc:hover .water{transform:translateY(0)}
  .svc-diagram .chev{stroke:#fff;stroke-width:1.4;fill:none;opacity:0;transition:opacity .4s .15s}
  .svc:hover .chev{opacity:.9}
  .svc-diagram .flood-fill{fill:var(--flood);opacity:0;transform:translateY(10px);
    transition:opacity .5s,transform .5s cubic-bezier(.2,.8,.2,1)}
  .svc.flood:hover .flood-fill{opacity:.85;transform:translateY(0)}
  .svc-diagram .flood-line{stroke:var(--flood-deep);stroke-width:1.4;stroke-dasharray:3 3;opacity:0;transition:opacity .4s .2s}
  .svc.flood:hover .flood-line{opacity:1}
  .svc-diagram .hydro-curve{stroke:var(--hydro);stroke-width:2;fill:none;opacity:.6;transition:opacity .4s ease}
  .svc:hover .hydro-curve{opacity:1}
  .svc-diagram .peak{fill:var(--hydro);opacity:0;transition:opacity .3s .2s}
  .svc:hover .peak{opacity:1}
  .svc-diagram .rain{stroke:var(--hydro-bright);stroke-width:2.4;opacity:.35;transition:opacity .3s}
  .svc:hover .rain{opacity:.8}
  .svc-diagram .flow-arrow{stroke:var(--hydro);stroke-width:2;fill:none;
    stroke-dasharray:5 5;stroke-dashoffset:0}
  .svc:hover .flow-arrow{animation:flow 1.1s linear infinite}
  @keyframes flow{to{stroke-dashoffset:-20}}

  /* ---------- APPROACH ---------- */
  .approach{max-width:var(--maxw);margin:0 auto;padding:0 32px;
    display:grid;grid-template-columns:repeat(4,1fr);gap:0}
  .step{padding:32px 26px 30px;border-left:1px solid var(--line-dark);position:relative}
  .step:first-child{border-left:none}
  .step .no{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--hydro-bright)}
  .step h4{font-family:var(--disp);font-weight:600;font-size:1.15rem;margin-top:22px;color:var(--t-on-ink)}
  .step p{color:var(--t-on-ink-mute);font-size:.92rem;margin-top:10px;line-height:1.55}
  .step .dot{position:absolute;top:-5px;left:-5px;width:9px;height:9px;
    background:var(--ink);border:1px solid var(--hydro);transform:rotate(45deg)}
  .step:first-child .dot{left:0}
  .approach-rule{max-width:var(--maxw);margin:0 auto 46px;padding:0 32px}
  .approach-rule svg{width:100%;height:70px;overflow:visible}

  /* ---------- CAPABILITIES ---------- */
  .cap-grid{max-width:var(--maxw);margin:0 auto;padding:0 32px;
    display:grid;grid-template-columns:1.15fr 1fr;gap:64px;align-items:start}
  .cap-col h3{font-family:var(--disp);font-weight:700;font-size:1.25rem;margin-bottom:24px}
  .cap-list{list-style:none;border-top:1px solid var(--line-light)}
  .cap-list li{display:flex;gap:18px;padding:16px 0;border-bottom:1px solid var(--line-light);
    align-items:baseline}
  .cap-list .k{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--hydro);
    min-width:58px;flex:none}
  .cap-list .v{font-size:.98rem;color:var(--t-dark)}
  .cap-list .v small{display:block;color:var(--t-mute);font-size:.85rem;margin-top:2px}
  .standards{background:var(--ink);color:var(--t-on-ink);padding:34px 32px;border-radius:3px}
  .standards h3{color:var(--t-on-ink)}
  .standards .cap-list{border-top-color:var(--line-dark)}
  .standards .cap-list li{border-bottom-color:var(--line-dark)}
  .standards .cap-list .k{color:var(--hydro-bright)}
  .standards .cap-list .v{color:var(--t-on-ink)}
  .standards .cap-list .v small{color:var(--t-on-ink-mute)}

  /* ---------- CONTACT ---------- */
  .contact-wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;
    display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
  .contact h2{font-family:var(--disp);font-weight:700;
    font-size:clamp(2rem,4vw,3.2rem);line-height:1.02;letter-spacing:-.01em;color:var(--t-on-ink)}
  .contact p{color:var(--t-on-ink-mute);margin-top:20px;max-width:44ch;font-size:1.05rem}
  .contact-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:16px}
  .contact-card{border:1px solid var(--line-dark);border-radius:3px;overflow:hidden}
  .contact-card .row{display:flex;justify-content:space-between;gap:16px;
    padding:18px 22px;border-bottom:1px solid var(--line-dark)}
  .contact-card .row:last-child{border-bottom:none}
  .contact-card .row .k{font-family:var(--mono);font-size:11px;letter-spacing:.1em;
    text-transform:uppercase;color:var(--t-on-ink-mute)}
  .contact-card .row .v{color:var(--t-on-ink);font-size:.95rem;text-align:right}
  .contact-card .row .v a:hover{color:var(--hydro-bright)}

  /* ---------- TITLE BLOCK FOOTER ---------- */
  .titleblock{background:var(--ink-2);border-top:1px solid var(--line-dark)}
  .tb-inner{max-width:var(--maxw);margin:0 auto;padding:0 32px}
  .tb-brand{display:flex;align-items:center;gap:14px;padding:34px 0 26px;
    border-bottom:1px solid var(--line-dark)}
  .tb-brand .glyph{width:40px;height:40px}
  .tb-brand .name{font-family:var(--disp);font-weight:700;color:var(--t-on-ink);font-size:22px}
  .tb-brand .name small{display:block;font-family:var(--mono);font-weight:400;font-size:10px;
    letter-spacing:.26em;color:var(--t-on-ink-mute);margin-top:4px;text-transform:uppercase}
  .tb-grid{display:grid;grid-template-columns:repeat(6,1fr);border-bottom:1px solid var(--line-dark)}
  .tb-cell{padding:18px 16px;border-left:1px solid var(--line-dark)}
  .tb-cell:first-child{border-left:none;padding-left:0}
  .tb-cell .k{font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;
    text-transform:uppercase;color:var(--t-on-ink-mute)}
  .tb-cell .v{font-family:var(--mono);font-size:13px;color:var(--t-on-ink);margin-top:8px}
  .tb-cell .v.accent{color:var(--hydro-bright)}
  .tb-foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
    padding:22px 0 40px}
  .tb-foot span{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--t-on-ink-mute)}

  /* ---------- REVEAL ---------- */
  .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
  .reveal.in{opacity:1;transform:none}

  /* ---------- FOCUS ---------- */
  a:focus-visible,button:focus-visible{outline:2px solid var(--hydro-bright);outline-offset:3px}

  /* ---------- RESPONSIVE ---------- */
  @media (max-width:960px){
    .metrics .grid{grid-template-columns:repeat(2,1fr)}
    .metric:nth-child(3){border-left:none}
    .metric{border-top:1px solid var(--line-dark)}
    .metric:nth-child(-n+2){border-top:none}
    .svc-grid{grid-template-columns:1fr}
    .approach{grid-template-columns:repeat(2,1fr)}
    .step{border-top:1px solid var(--line-dark)}
    .step:nth-child(-n+2){border-top:none}
    .step:nth-child(odd){border-left:none}
    .about-wrap{grid-template-columns:1fr;gap:40px}
    .cap-grid{grid-template-columns:1fr;gap:44px}
    .contact-wrap{grid-template-columns:1fr;gap:38px}
    .tb-grid{grid-template-columns:repeat(3,1fr)}
    .tb-cell:nth-child(4){border-left:none;padding-left:0}
  }
  @media (max-width:680px){
    .wrap,.sec-head,.about-wrap,.svc-grid,.approach,.cap-grid,.contact-wrap,.tb-inner,.approach-rule{padding-left:22px;padding-right:22px}
    .nav{padding:14px 22px}
    .nav-links{display:none}
    .nav-burger{display:block}
    .section{padding:76px 0}
    .approach{grid-template-columns:1fr}
    .step{border-left:none;border-top:1px solid var(--line-dark)}
    .step:first-child{border-top:none}
    .metrics .grid{grid-template-columns:1fr}
    .metric{border-left:none;border-top:1px solid var(--line-dark)}
    .metric:first-child{border-top:none}
    .tb-grid{grid-template-columns:repeat(2,1fr)}
    .tb-cell:nth-child(3),.tb-cell:nth-child(5){border-left:none;padding-left:0}
  }

  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
    .reveal{opacity:1;transform:none}
    .svc-diagram .hydro-curve{stroke-dashoffset:0}
  }