:root{
    --ink:#180419;
    --steel:#3a1440;
    --steel-2:#4d1c56;
    --paper:#f3f0f3;
    --paper-2:#e7e0e8;
    --rust:#49005a;
    --rust-2:#33003f;
    --amber:#c9a0d6;
    --slate:#545454;
    --text:#211c22;
    --text-soft:#5b5560;
    --line: rgba(24,4,25,0.14);
    --line-on-dark: rgba(255,255,255,0.18);
    --radius: 2px;
    --maxw: 1200px;
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
  }
  body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:'IBM Plex Sans', sans-serif;
    font-size:16px;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{
    font-family:'IBM Plex Sans', sans-serif;
    margin:0;
    letter-spacing:-0.01em;
    font-weight:800;
  }
  a{color:inherit;}
  img{max-width:100%;display:block;}
  .mono{font-family:'IBM Plex Sans', sans-serif; font-weight:600;}
  .wrap{max-width:var(--maxw); margin:0 auto; padding:0 32px;}
  .eyebrow{
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:12px;
    letter-spacing:0.18em;
    text-transform:uppercase;
    color:var(--rust);
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:18px;
  }
  .eyebrow::before{
    content:"";
    width:22px;
    height:1px;
    background:var(--rust);
    display:inline-block;
  }
  .eyebrow.on-dark{color:var(--amber);}
  .eyebrow.on-dark::before{background:var(--amber);}

  /* corner ticks - engineering drawing mark, reused as a structural device */
  .tickframe{position:relative;}
  .tickframe::before,.tickframe::after{
    content:"";
    position:absolute;
    width:14px;height:14px;
    border-top:1.5px solid var(--rust);
    border-left:1.5px solid var(--rust);
    top:-8px;left:-8px;
  }
  .tickframe::after{
    top:auto;left:auto;bottom:-8px;right:-8px;
    border-top:none;border-left:none;
    border-bottom:1.5px solid var(--rust);
    border-right:1.5px solid var(--rust);
  }

  /* ---------- NAV ---------- */
  header.site-nav{
    position:fixed; top:0; left:0; right:0; z-index:1000;
    padding:20px 0;
    background:transparent;
    border-bottom:1px solid transparent;
    transition: padding .35s ease, box-shadow .35s ease, background .35s ease, border-color .35s ease;
  }
  header.site-nav .wrap{
    display:flex; align-items:center; justify-content:space-between;
  }
  header.site-nav.scrolled{
    padding:9px 0;
    background:var(--ink);
    border-bottom:1px solid rgba(255,255,255,0.08);
    box-shadow:0 6px 18px rgba(0,0,0,0.28);
  }
  .brand{
    display:flex; align-items:center;
    text-decoration:none;
  }
  .brand .logo-badge{
    display:flex;
    align-items:center;
  }
  .brand .logo-badge img{
    height:40px;
    width:auto;
    display:block;
  }

  nav.main-links{display:flex; gap:32px; align-items:center;}
  nav.main-links a{
    color:rgba(255,255,255,0.82);
    text-decoration:none;
    font-size:14px;
    font-weight:500;
    letter-spacing:0.02em;
    position:relative;
    padding:4px 0;
  }
  nav.main-links a:hover{color:#fff;}
  nav.main-links a::after{
    content:"";
    position:absolute; left:0; bottom:0;
    width:0; height:1.5px; background:var(--amber);
    transition:width .25s ease;
  }
  nav.main-links a:hover::after{width:100%;}
  .nav-cta{
    border:1px solid rgba(255,255,255,0.4) !important;
    padding:9px 18px !important;
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:12px !important;
    text-transform:uppercase;
    letter-spacing:0.1em;
  }
  .nav-cta:hover{border-color:var(--amber) !important; background:rgba(201,160,214,0.12);}
  .nav-cta::after{display:none;}
  nav.main-links a.active{color:#fff;}
  nav.main-links a.active::after{width:100%;}
  .menu-toggle{display:none;background:none;border:none;color:#fff;cursor:pointer;padding:6px;}
  .menu-toggle svg{width:24px;height:24px;}

  .nav-dropdown{position:relative;}
  .nav-dropdown > .dd-toggle{
    background:none;border:none;cursor:pointer;
    display:flex;align-items:center;gap:6px;
    color:rgba(255,255,255,0.82);
    font-family:'IBM Plex Sans', sans-serif;
    font-size:14px;font-weight:500;letter-spacing:0.02em;
    padding:4px 0;
  }
  .nav-dropdown > .dd-toggle svg{width:10px;height:10px;transition:transform .2s ease;}
  .nav-dropdown.open > .dd-toggle svg{transform:rotate(180deg);}
  .nav-dropdown > .dd-toggle:hover{color:#fff;}
  .nav-dropdown.has-active > .dd-toggle{color:#fff;}
  .dd-panel{
    position:absolute; top:calc(100% + 20px); left:50%; transform:translateX(-50%);
    background:var(--ink); border:1px solid rgba(255,255,255,0.12);
    min-width:220px; padding:10px; display:none;
    box-shadow:0 16px 32px rgba(0,0,0,0.4);
  }
  .nav-dropdown.open .dd-panel{display:block;}
  .dd-panel a{
    display:block; padding:11px 14px; font-size:13.5px;
    color:rgba(255,255,255,0.78); text-decoration:none;
    border-radius:3px;
  }
  .dd-panel a::after{display:none;}
  .dd-panel a:hover{background:rgba(255,255,255,0.07); color:#fff;}
  .dd-panel a.active{color:var(--amber);}

  /* ---------- HERO ---------- */
  .hero{
    position:relative;
    width:100%;
    min-height:100vh;
    display:flex;
    align-items:flex-end;
    overflow:hidden;
    background:#0b0508;
    color:#fff;
  }
  .hero-media{
    position:absolute; inset:0; z-index:0;
    background:#0b0508;
  }
  .hero-video{
    width:100%; height:100%;
    display:block;
    object-fit:cover;   /* fill the hero section completely, cropping as needed */
    object-position:center;
    background:#000;
  }
  .hero::after{
    content:"";
    position:absolute; inset:0; z-index:1;
    background:linear-gradient(180deg, rgba(24,4,25,0.05) 0%, rgba(24,4,25,0.15) 15%, rgba(24,4,25,0.55) 40%, rgba(24,4,25,0.92) 100%);
    pointer-events:none;
  }
  .hero-inner{
    position:relative; z-index:2;
    width:100%;
    padding-bottom:96px;
    padding-top:220px;
  }
  .hero-tag{
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:13px;
    letter-spacing:0.28em;
    text-transform:uppercase;
    color:var(--amber);
    margin-bottom:26px;
  }
  .hero h1{
    font-size:clamp(42px, 6.4vw, 92px);
    line-height:1.02;
    font-weight:600;
    max-width:900px;
  }
  .hero h1 em{
    font-style:normal;
    color:var(--amber);
    text-decoration:underline;
    text-decoration-color:var(--rust);
    text-decoration-thickness:3px;
    text-underline-offset:8px;
  }
  .hero-sub{
    margin-top:28px;
    max-width:480px;
    font-size:17px;
    color:rgba(255,255,255,0.82);
  }
  .hero-meta{
    display:flex;
    gap:48px;
    margin-top:56px;
    padding-top:28px;
    border-top:1px solid rgba(255,255,255,0.2);
    flex-wrap:wrap;
  }
  .hero-meta div .num{
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:26px;
    color:#fff;
  }
  .hero-meta div .lbl{
    font-size:12px;
    color:rgba(255,255,255,0.6);
    text-transform:uppercase;
    letter-spacing:0.08em;
    margin-top:4px;
  }
  .scroll-cue{
    position:absolute; right:32px; bottom:32px;
    writing-mode:vertical-rl;
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:11px;
    letter-spacing:0.2em;
    color:rgba(255,255,255,0.55);
    display:flex; align-items:center; gap:10px;
  }
  .scroll-cue::after{
    content:"";
    width:1px;height:44px;
    background:rgba(255,255,255,0.4);
  }

  /* ---------- SECTION GENERIC ---------- */
  section{padding:120px 0;}
  .section-head{max-width:640px; margin-bottom:56px;}
  .section-head h2{font-size:clamp(28px,3.4vw,42px);}
  .reveal{opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease;}
  .reveal.in{opacity:1; transform:translateY(0);}

  /* ---------- ABOUT ---------- */
  .about{background:var(--paper);}
  .about-grid{
    display:grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap:80px;
    align-items:start;
  }
  .about-copy p{font-size:17px; color:var(--text-soft); max-width:52ch;}
  .about-copy p + p{margin-top:18px;}
  .footprint-card{
    border:1px solid var(--line);
    background:#fff;
    padding:36px;
  }
  .footprint-card h3{font-size:20px; margin-bottom:14px;}
  .footprint-card p{color:var(--text-soft); font-size:15px;}
  .footprint-stats{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:24px;
    margin-top:28px;
    padding-top:24px;
    border-top:1px solid var(--line);
  }
  .footprint-stats .stat-label{
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:11px;
    text-transform:uppercase;
    letter-spacing:0.08em;
    color:var(--rust);
    margin-bottom:6px;
  }
  .footprint-stats .stat-value{font-size:15px; font-weight:500;}

  /* ---------- TIPPING POINT ---------- */
  .tipping{
    background:var(--ink);
    color:#fff;
    position:relative;
    overflow:hidden;
  }
  .tipping::before{
    content:"";
    position:absolute;
    right:-8%;
    top:50%;
    transform:translateY(-50%);
    width:640px; height:640px;
    background-color:var(--amber);
    -webkit-mask-image:url('assets/africa-icon.png');
    -webkit-mask-repeat:no-repeat;
    -webkit-mask-position:center;
    -webkit-mask-size:contain;
    mask-image:url('assets/africa-icon.png');
    mask-repeat:no-repeat;
    mask-position:center;
    mask-size:contain;
    opacity:0.12;
    pointer-events:none;
  }
  .tipping .wrap{position:relative; z-index:1;}
  .tipping h2{
    font-size:clamp(30px, 4vw, 52px);
    max-width:820px;
    font-weight:500;
    line-height:1.25;
  }
  .tipping h2 .accent{color:var(--amber); font-weight:600;}
  .tipping p{
    margin-top:32px;
    max-width:640px;
    color:rgba(255,255,255,0.75);
    font-size:17px;
  }

  /* ---------- MISSION / VISION / VALUES ---------- */
  .mv{background:var(--paper-2);}
  .mv-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:40px;
    margin-bottom:64px;
  }
  .mv-card{
    background:#fff;
    border:1px solid var(--line);
    padding:40px;
    position:relative;
  }
  .mv-card .eyebrow{margin-bottom:16px;}
  .mv-card p{color:var(--text-soft); font-size:16px;}
  .values-row{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:1px;
    background:var(--line);
    border:1px solid var(--line);
  }
  .value-item{
    background:var(--paper-2);
    padding:32px 28px;
  }
  .value-item .v-index{
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:11px;
    color:var(--rust);
    letter-spacing:0.08em;
  }
  .value-item h4{font-size:18px; margin-top:14px;}
  .value-item p{font-size:14px; color:var(--text-soft); margin-top:10px;}

  /* ---------- WHAT WE DO GRID ---------- */
  .whatwedo{background:var(--paper);}
  .wwd-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
  }
  .wwd-card{
    position:relative;
    aspect-ratio:3/4;
    overflow:hidden;
    text-decoration:none;
    color:#fff;
    display:block;
    border:1px solid var(--line);
  }
  .wwd-card img{
    position:absolute; inset:0;
    width:100%; height:100%;
    object-fit:cover;
    transition:transform .6s ease;
  }
  .wwd-card:hover img{transform:scale(1.06);}
  .wwd-card::before{
    content:"";
    position:absolute; inset:0;
    background:linear-gradient(180deg, rgba(24,4,25,0.05) 30%, rgba(24,4,25,0.88) 100%);
  }
  .wwd-card .wwd-label{
    position:absolute; left:20px; bottom:20px; right:20px;
    z-index:1;
  }
  .wwd-card .wwd-num{
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:11px;
    color:var(--amber);
    letter-spacing:0.1em;
  }
  .wwd-card h3{font-size:20px; margin-top:8px; color:#fff;}

  /* ---------- PILLAR DETAIL SECTIONS ---------- */
  .pillar{background:var(--paper);}
  .pillar:nth-of-type(even){background:var(--paper-2);}
  .pillar-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:72px;
    align-items:center;
  }
  .pillar-grid.reverse .pillar-media{order:2;}
  .pillar-media{position:relative;}
  .pillar-media-inner{position:relative; padding:8px;}
  .pillar-media img{width:100%; height:420px; object-fit:cover;}
  .pillar-copy .eyebrow{margin-bottom:20px;}
  .pillar-copy h2{font-size:clamp(26px,3vw,36px); margin-bottom:8px;}
  .pillar-copy .pillar-kicker{
    font-size:16px;
    color:var(--rust);
    font-weight:500;
    margin-bottom:20px;
  }
  .pillar-copy > p.lead{font-size:16px; color:var(--text-soft); max-width:52ch;}
  .checklist{list-style:none; padding:0; margin:28px 0 0; display:grid; gap:14px;}
  .checklist li{
    display:flex; gap:14px; align-items:flex-start;
    font-size:15px;
    color:var(--text);
  }
  .checklist li::before{
    content:"";
    flex-shrink:0;
    width:16px;height:16px;
    margin-top:3px;
    border:1.5px solid var(--rust);
    background:
      linear-gradient(var(--rust),var(--rust)) no-repeat center / 8px 1.5px,
      linear-gradient(var(--rust),var(--rust)) no-repeat center / 1.5px 8px;
  }

  /* ---------- PROJECTS (signature spec-plate cards) ---------- */
  .projects{background:var(--ink); color:#fff;}
  .projects .section-head h2{color:#fff;}
  .projects .section-head p{color:rgba(255,255,255,0.6); margin-top:14px; font-size:16px; max-width:56ch;}
  .proj-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:2px;
    background:rgba(255,255,255,0.14);
    border:1px solid rgba(255,255,255,0.14);
  }
  .proj-card{background:var(--ink); padding:0;}
  .proj-photo{position:relative; height:260px; overflow:hidden;}
  .proj-photo img{width:100%; height:100%; object-fit:cover; filter:grayscale(15%);}
  .proj-photo::after{
    content:"";
    position:absolute; inset:0;
    background:linear-gradient(180deg, rgba(24,4,25,0) 60%, rgba(24,4,25,0.85) 100%);
  }
  .proj-body{padding:28px 32px 32px;}
  .proj-loc{
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:11px;
    letter-spacing:0.1em;
    text-transform:uppercase;
    color:var(--amber);
  }
  .proj-body h3{font-size:22px; margin-top:10px;}
  .proj-type{font-size:14px; color:rgba(255,255,255,0.6); margin-top:8px;}
  .proj-stats{
    display:flex; flex-wrap:wrap;
    gap:0;
    margin-top:24px;
    border-top:1px dashed rgba(255,255,255,0.25);
    padding-top:18px;
  }
  .proj-stat{
    flex:1 1 auto;
    min-width:88px;
    position:relative;
    padding-right:18px;
    margin-right:18px;
    border-right:1px dashed rgba(255,255,255,0.2);
  }
  .proj-stat:last-child{border-right:none; margin-right:0; padding-right:0;}
  .proj-stat .ps-val{
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:17px;
    color:#fff;
  }
  .proj-stat .ps-lbl{
    font-size:10.5px;
    text-transform:uppercase;
    letter-spacing:0.06em;
    color:rgba(255,255,255,0.5);
    margin-top:4px;
  }

  /* ---------- CONTACT ---------- */
  .contact{
    position:relative;
    color:#fff;
    background:linear-gradient(180deg, rgba(24,4,25,0.88), rgba(24,4,25,0.96)), url('assets/contact-bg.jpg') center/cover no-repeat;
  }
  .contact-grid{
    display:grid;
    grid-template-columns:1.1fr 0.9fr;
    gap:72px;
  }
  .contact h2{font-size:clamp(30px,4vw,48px); max-width:520px;}
  .contact-lead{margin-top:20px; color:rgba(255,255,255,0.7); font-size:16px; max-width:46ch;}
  .contact-details{display:grid; gap:26px;}
  .contact-item{
    border-top:1px solid rgba(255,255,255,0.16);
    padding-top:20px;
  }
  .contact-item .ci-label{
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:11px;
    letter-spacing:0.1em;
    text-transform:uppercase;
    color:var(--amber);
    margin-bottom:8px;
  }
  .contact-item .ci-value{font-size:17px;}
  .contact-item a{text-decoration:none; border-bottom:1px solid rgba(255,255,255,0.3);}
  .contact-item a:hover{border-color:var(--amber); color:var(--amber);}

  /* ---------- FOOTER ---------- */
  footer{
    background:var(--ink);
    color:rgba(255,255,255,0.5);
    padding:32px 0;
    border-top:1px solid rgba(255,255,255,0.1);
  }
  footer .wrap{
    display:flex; justify-content:space-between; align-items:center;
    font-size:13px;
    flex-wrap:wrap;
    gap:12px;
  }
  footer .foot-tag{
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    letter-spacing:0.06em;
  }

  /* ---------- RESPONSIVE ---------- */
  /* ---------- FOOTER LOGO BADGE ---------- */
  .footer-logo-badge{
    display:inline-flex;
    background:#fff;
    padding:10px 16px;
    border-radius:5px;
    margin-bottom:18px;
  }
  .footer-logo-badge img{height:34px; width:auto; display:block;}

  /* ---------- SECTOR / PROJECTS PAGE BANNER ---------- */
  .page-banner{
    position:relative;
    min-height:56vh;
    display:flex;
    align-items:flex-end;
    color:#fff;
    background-size:cover;
    background-position:center;
  }
  .page-banner-inner{
    width:100%;
    padding-top:200px;
    padding-bottom:64px;
    position:relative;
    z-index:1;
  }
  .page-banner .crumb{
    font-size:13px;
    color:rgba(255,255,255,0.6);
    margin-bottom:22px;
  }
  .page-banner .crumb a{color:rgba(255,255,255,0.85); text-decoration:none;}
  .page-banner .crumb a:hover{color:var(--amber);}
  .page-banner h1{
    font-size:clamp(34px, 5vw, 64px);
    max-width:820px;
    line-height:1.05;
  }
  .page-banner .banner-lead{
    margin-top:22px;
    max-width:600px;
    font-size:17px;
    color:rgba(255,255,255,0.82);
  }

  /* ---------- SECTOR CROSS-LINK STRIP ---------- */
  .sector-strip{background:var(--ink); color:#fff;}
  .sector-strip .strip-head{
    display:flex; justify-content:space-between; align-items:flex-end;
    margin-bottom:36px; gap:24px; flex-wrap:wrap;
  }
  .sector-strip .strip-head h2{font-size:26px;}
  .strip-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:2px;
    background:rgba(255,255,255,0.12);
    border:1px solid rgba(255,255,255,0.12);
  }
  .strip-card{
    background:var(--ink);
    padding:28px 26px;
    text-decoration:none;
    color:#fff;
    display:block;
    transition:background .25s ease;
  }
  .strip-card:hover{background:#26082a;}
  .strip-card .strip-num{
    font-family:'IBM Plex Sans', sans-serif; font-weight:600;
    font-size:11px; letter-spacing:0.1em; color:var(--amber);
  }
  .strip-card h3{font-size:19px; margin-top:10px;}
  .strip-card p{font-size:13.5px; color:rgba(255,255,255,0.55); margin-top:8px;}

  /* ---------- BUTTONS ---------- */
  .btn{
    display:inline-flex; align-items:center; gap:10px;
    font-size:13px; font-weight:600;
    text-transform:uppercase; letter-spacing:0.08em;
    text-decoration:none;
    padding:14px 26px;
    border:1px solid var(--rust);
    color:var(--rust);
    transition:background .25s ease, color .25s ease;
  }
  .btn:hover{background:var(--rust); color:#fff;}
  .btn.on-dark{border-color:rgba(255,255,255,0.4); color:#fff;}
  .btn.on-dark:hover{background:#fff; color:var(--ink); border-color:#fff;}
  .btn-row{margin-top:40px;}

  /* ---------- PROJECT TEASER (homepage) ---------- */
  .proj-teaser-foot{
    margin-top:44px; display:flex; justify-content:center;
  }

  @media (max-width: 980px){
    .strip-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width: 640px){
    .strip-grid{grid-template-columns:1fr;}
    .page-banner-inner{padding-bottom:44px;}
  }

  @media (max-width: 980px){
    .wwd-grid{grid-template-columns:repeat(2,1fr);}
    .proj-grid{grid-template-columns:1fr;}
    .about-grid, .mv-grid, .pillar-grid, .contact-grid{grid-template-columns:1fr; gap:40px;}
    .pillar-grid.reverse .pillar-media{order:0;}
    .values-row{grid-template-columns:repeat(2,1fr);}
  }
  @media (max-width: 720px){
    .wrap{padding:0 20px;}
    nav.main-links{
      position:fixed; top:0; right:0; height:100vh; width:78vw; max-width:320px;
      background:var(--ink);
      flex-direction:column; align-items:flex-start;
      padding:100px 32px 32px;
      gap:26px;
      transform:translateX(100%);
      transition:transform .35s ease;
    }
    nav.main-links.open{transform:translateX(0);}
    .menu-toggle{display:block;}
    .hero-inner{padding-top:160px; padding-bottom:64px;}
    .hero-meta{gap:28px;}
    section{padding:76px 0;}
    .wwd-grid{grid-template-columns:1fr 1fr;}
    .values-row{grid-template-columns:1fr;}
    .scroll-cue{display:none;}
    .nav-dropdown{width:100%;}
    .dd-toggle{width:100%; justify-content:space-between;}
    .dd-panel{
      position:static; transform:none; background:none; border:none;
      box-shadow:none; padding:0 0 0 14px; margin-top:8px; min-width:0;
    }
    .page-banner-inner{padding-top:150px !important;}
  }