:root{
    --accent:#F05A22;
    --accent-muted:rgba(240,90,34,0.55);
    --dark:#14161C;
    --dark2:#0F1014;
    --cream1:#F5F1E9;
    --cream2:#EFE9DE;
    --cream3:#F2EEE5;
    --ink:#16181D;
    --ink-muted:#5B584F;
    --paper:#F5F3EE;
    --paper-muted:rgba(245,243,238,0.62);
    --ease:cubic-bezier(0.16,1,0.3,1);
  }
  *{box-sizing:border-box}
  body{margin:0;background:var(--cream1);font-family:'Montserrat',sans-serif;overflow-x:hidden;color:var(--ink)}
  img{max-width:100%}
  a{color:inherit;text-decoration:none}
  h1,h2,h3{font-family:'Montserrat',sans-serif;font-weight:700}
  @keyframes logoScroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

  .container{max-width:1200px;margin:0 auto;padding:0 clamp(24px,4.5vw,48px)}
  .eyebrow{color:var(--accent);font:700 11px 'Montserrat',sans-serif;letter-spacing:2px;text-transform:uppercase;margin:0 0 20px}

  /* ---- Buttons (original pill style) ---- */
  .pill-btn{background:var(--accent);color:#fff;transition:background .35s var(--ease),box-shadow .35s var(--ease);white-space:nowrap;will-change:transform}
  .pill-btn:hover{background:#d84e1b;color:#fff;box-shadow:0 10px 28px rgba(240,90,34,0.35)}
  .pill-circle{background:var(--accent);transition:background .35s var(--ease),box-shadow .35s var(--ease);flex:none;will-change:transform}
  .pill-circle:hover{background:#d84e1b;box-shadow:0 10px 24px rgba(240,90,34,0.35)}

  /* ---- Header ---- */
  /* Zero-footprint probe at the very top of the document. Once it scrolls out
     of view the header switches to its condensed state. */
  .header-sentinel{position:absolute;top:0;left:0;width:1px;height:40px;pointer-events:none;visibility:hidden}
  /* Fixed to the viewport: transparent over the hero, solid once scrolled.
     Horizontal padding adds the hero-wrap's 16px inset so the logo stays put. */
  .header{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:clamp(18px,3.5vw,36px) calc(16px + clamp(18px,3.5vw,32px));border-bottom:1px solid transparent;transition:padding .4s var(--ease),background-color .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease)}
  .header.scrolled{background-color:rgba(255,255,255,0.92);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom-color:rgba(20,22,28,0.08);box-shadow:0 8px 28px rgba(20,22,28,0.10);padding-top:clamp(10px,1.5vw,15px);padding-bottom:clamp(10px,1.5vw,15px)}
  /* On the white bar the nav has to invert: dark links, dark hamburger. */
  .header.scrolled .navbar{background:rgba(20,22,28,0.04);border-color:rgba(20,22,28,0.10)}
  .header.scrolled .navbar a{color:var(--ink)}
  .header.scrolled .navbar a:hover{background:rgba(20,22,28,0.07);color:#000}
  .header.scrolled .navbar a.active{color:#000}
  .header.scrolled .mobile-menu summary{background:rgba(20,22,28,0.06);border-color:rgba(20,22,28,0.15)}
  .header.scrolled .mobile-menu summary svg{stroke:var(--ink)}

  /* White and orange logos stacked so the swap crossfades with no load flash. */
  .logo-link{display:flex;align-items:center;gap:12px}
  .logo-stack{position:relative;display:block;line-height:0}
  .logo-orange{position:absolute;top:0;left:0;opacity:0;pointer-events:none}
  .header.scrolled .logo-white{opacity:0}
  .header.scrolled .logo-orange{opacity:1}
  .header.scrolled .logo-img{width:clamp(104px,10.5vw,134px)}
  .logo-img{width:clamp(120px,13vw,165px);height:auto;object-fit:contain;transition:width .4s var(--ease),opacity .4s var(--ease)}
  /* keep in-page anchors clear of the fixed header */
  #about,#companies{scroll-margin-top:clamp(76px,10vw,104px)}
  .navbar{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,0.1);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,0.15);border-radius:100px;padding:8px 10px}
  .navbar a{font-size:15px;padding:10px 20px;border-radius:100px;white-space:nowrap;color:rgba(255,255,255,0.85);transition:background .3s var(--ease),color .3s var(--ease)}
  .navbar a:hover{background:rgba(255,255,255,0.12);color:#fff}
  .navbar a.active{color:#fff}
  @media (max-width:900px){.navbar{display:none}}

  .header-cta{display:flex;align-items:center;gap:0}
  @media (max-width:900px){.header-cta{display:none}}

  .mobile-menu{display:none;position:relative}
  @media (max-width:900px){.mobile-menu{display:block}}
  .mobile-menu summary{list-style:none;cursor:pointer;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.25);display:flex;align-items:center;justify-content:center}
  .mobile-menu summary::-webkit-details-marker{display:none}
  .mobile-menu-panel{position:absolute;top:52px;right:0;background:var(--dark);border-radius:16px;padding:10px;display:flex;flex-direction:column;gap:2px;min-width:190px;z-index:20;box-shadow:0 16px 40px rgba(0,0,0,0.35)}
  .mobile-menu-panel a{color:rgba(255,255,255,0.85);font-size:15px;padding:12px 14px;border-radius:8px;display:block}
  .mobile-menu-panel a:hover{background:rgba(255,255,255,0.08);color:#fff}
  .mobile-menu-panel .mm-contact{color:var(--accent);font-weight:600}

  /* ---- Hero (original rounded-card style) ---- */
  .hero-wrap{padding:16px 16px 0}
  .hero{position:relative;min-height:clamp(520px,88vh,960px);border-radius:28px;display:flex;flex-direction:column;overflow:hidden}
  .hero-media{position:absolute;inset:0}
  .hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
  .hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0.15) 0%,rgba(0,0,0,0.05) 35%,rgba(0,0,0,0.75) 100%)}
  .hero-content{position:relative;z-index:2;flex:1;display:flex;flex-direction:column;justify-content:flex-end;padding:0 clamp(18px,3.5vw,32px) clamp(44px,7vw,90px)}
  .hero-title{color:#fff;font:800 clamp(30px,5.4vw,50px)/1.12 'Montserrat',sans-serif;max-width:1012px;width:100%;margin:0 0 24px;letter-spacing:-1px}
  .hero-sub{color:rgba(255,255,255,0.85);font-size:clamp(15px,1.9vw,18px);line-height:1.6;max-width:996px;width:100%;margin:0 0 12px}
  .hero-sub:last-of-type{margin-bottom:clamp(24px,4vw,40px)}

  /* ---- Section shells ---- */
  .sec{padding:clamp(64px,9vw,110px) 0}
  .sec-light1{background:var(--cream1)}
  .sec-light2{background:var(--cream2)}
  .sec-light3{background:var(--cream3)}
  .sec-dark{background:var(--dark);color:var(--paper)}

  /* ---- Partner logos (infinite marquee) ----
     Two identical sets sit side by side and the track slides -50%, so the
     second set lands exactly where the first began and the loop is seamless.
     @keyframes logoScroll is defined at the top of this sheet. */
  .logos{background:var(--cream3);padding:clamp(52px,7vw,84px) 0;overflow:hidden}
  .logos-mask{position:relative;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
  .logos-track{display:flex;width:max-content;animation:logoScroll 28s linear infinite}
  .logos-track:hover{animation-play-state:paused}
  .logos-set{display:flex;align-items:center;gap:clamp(56px,7vw,96px);padding-right:clamp(56px,7vw,96px)}
  .logos-set img{height:clamp(38px,4.4vw,56px);width:auto;object-fit:contain}

  .split{display:grid;grid-template-columns:280px 1fr;gap:clamp(32px,5vw,60px)}
  @media (max-width:860px){.split{grid-template-columns:1fr}}
  .split-heading{font:700 clamp(24px,2.8vw,30px)/1.3 'Montserrat',sans-serif;margin:0}
  .split-body p{font-size:15px;line-height:1.85;color:var(--ink-muted);margin:0 0 20px}
  .split-body p:last-child{margin-bottom:0}
  .sec-dark .split-body p{color:var(--paper-muted)}
  .split-name{font:700 clamp(22px,2.6vw,28px)/1.2 'Montserrat',sans-serif;color:#fff;margin:0 0 6px}
  .split-role{font-size:13px;color:var(--paper-muted);letter-spacing:0.3px}

  /* ---- Our Companies (numbered, no imagery) ---- */
  .num-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,2.4vw,28px);margin-top:44px;align-items:stretch}
  @media (max-width:860px){.num-grid{grid-template-columns:1fr;gap:20px}}
  /* Column flex + margin-top:auto on the CTA keeps every button on the same
     baseline even though the three descriptions differ in length. */
  .num-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid rgba(20,22,28,0.07);border-radius:20px;padding:clamp(26px,3vw,36px);transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
  .num-card:hover{transform:translateY(-6px);box-shadow:0 24px 50px rgba(20,22,28,0.10)}
  /* Company logo in place of the old 01/02/03 numeral. Fixed-height box so the
     three marks share a baseline despite differing aspect ratios. */
  .num-tag{display:flex;align-items:center;height:60px;margin-bottom:20px}
  .num-tag img{max-height:60px;width:auto;object-fit:contain}
  .num-title{font:700 21px/1.35 'Montserrat',sans-serif;margin:0 0 14px;color:var(--ink)}
  .num-desc{font-size:14px;line-height:1.8;color:var(--ink-muted);margin:0 0 28px}
  .num-cta{margin-top:auto;align-self:flex-start;display:inline-flex;align-items:center;gap:9px;font:600 14px 'Montserrat',sans-serif;color:var(--accent);background:transparent;border:1.5px solid var(--accent);border-radius:100px;padding:12px 22px;white-space:nowrap;transition:background .35s var(--ease),color .35s var(--ease),box-shadow .35s var(--ease)}
  .num-cta svg{transition:transform .35s var(--ease)}
  .num-cta:hover{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(240,90,34,0.28)}
  .num-cta:hover svg{transform:translate(2px,-2px)}
  /* Power and Mining have no destination yet: rendered as a <span>, not a link,
     and muted so it doesn't read as a button that fails to respond. */
  .num-cta-static{color:var(--ink-muted);border-color:rgba(20,22,28,0.18);cursor:default}
  .num-cta-static:hover{background:transparent;color:var(--ink-muted);box-shadow:none}

  /* ---- What We Do / How We Partner list rows ---- */
  .list-head{max-width:760px;margin-bottom:48px}
  .list-head h2{font:700 clamp(24px,3vw,32px)/1.32 'Montserrat',sans-serif;margin:0 0 14px}
  .list-head p{font-size:14.5px;line-height:1.8;color:var(--ink-muted);margin:0}

  .row-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 clamp(40px,5vw,64px)}
  @media (max-width:760px){.row-grid{grid-template-columns:1fr}}
  .row-item{padding:26px 0;border-bottom:1px solid rgba(20,22,28,0.1)}
  .row-item h4{font:600 15px 'Montserrat',sans-serif;margin:0 0 8px;color:var(--ink)}
  .row-item p{font-size:13.5px;line-height:1.75;color:var(--ink-muted);margin:0}

  .stack-list{margin-top:44px}
  .stack-item{display:grid;grid-template-columns:80px 200px 1fr;gap:24px;align-items:baseline;padding:24px 0;border-bottom:1px solid rgba(20,22,28,0.1)}
  @media (max-width:760px){.stack-item{grid-template-columns:1fr;gap:8px;padding:20px 0}}
  .stack-num{font:600 12px 'Montserrat',sans-serif;color:var(--accent);letter-spacing:1px}
  .stack-title{font:600 15px 'Montserrat',sans-serif;color:var(--ink)}
  .stack-desc{font-size:13.5px;line-height:1.75;color:var(--ink-muted)}

  .closing-note{margin-top:44px;padding:26px 0 26px 24px;border-left:2px solid var(--accent);max-width:820px}
  .closing-note p{font-size:14px;line-height:1.85;color:var(--ink-muted);margin:0}

  /* ---- Group Ecosystem ---- */
  .ecosystem{position:relative;overflow:hidden}
  .ecosystem-media{position:absolute;inset:0}
  .ecosystem-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0.28;filter:grayscale(0.4)}
  .ecosystem-media .grad{position:absolute;inset:0;background:linear-gradient(90deg,var(--dark) 0%,var(--dark) 40%,rgba(20,22,28,0.55) 100%)}
  .ecosystem-body{position:relative;z-index:2;max-width:680px}
  .ecosystem-body p{font-size:16px;line-height:1.85;color:var(--paper-muted);margin:0}

  /* ---- Footer (original structure, current dark shades) ---- */
  .footer-wrap{background:var(--dark2);padding:clamp(48px,8vw,100px) 16px 16px}
  .footer-inner{background:var(--dark);border-radius:28px;padding:clamp(32px,6vw,64px) clamp(20px,4vw,32px) 0;overflow:hidden}
  .footer-grid{display:grid;grid-template-columns:2.4fr 1fr 0.8fr 0.9fr;gap:32px;padding-bottom:56px}
  @media (max-width:1100px){.footer-grid{grid-template-columns:1fr 1fr}}
  @media (max-width:560px){.footer-grid{grid-template-columns:1fr}}
  .footer-col-title{font:700 16px 'Montserrat',sans-serif;color:#fff;margin-bottom:16px}
  .footer-brand-title{font:700 20px 'Montserrat',sans-serif;color:#fff;margin-bottom:16px}
  .footer-text{font-size:14.5px;line-height:1.7;color:var(--paper-muted);margin:0}
  .footer-links{display:flex;flex-direction:column;gap:12px}
  .footer-links a{font-size:14.5px;color:var(--paper-muted);transition:color .3s var(--ease)}
  .footer-links a:hover{color:#fff}
  .footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:28px 0}
  .footer-bottom span,.footer-bottom a{font-size:14px;color:var(--paper-muted)}
  .footer-bottom a:hover{color:#fff}

  @media (prefers-reduced-motion: reduce){
    .logos-track{animation:none}
    .pill-btn,.pill-circle{transition:background-color .2s ease,color .2s ease !important;transform:none !important}
  }