:root{
    --void:#171B1F;
    --void-2:#17181D;
    --bone:#F9F7F2;
    --bone-2:#EFEAE0;
    --card:#FFFFFF;
    --signal:#FF4D2E;
    --slate:#7A8288;
    --line:#E1DDD1;
    --line-dark:#2A2C31;
    --muted-dark:#9A9FA5;
    --muted-light:#63676b;
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--bone);color:var(--void);
    font-family:'Inter',sans-serif;font-size:16px;line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }
  ::selection{background:var(--signal);color:var(--bone);}
  a{color:inherit;text-decoration:none;}
  .display{font-family:'Space Grotesk',sans-serif;}
  .mono{font-family:'IBM Plex Mono',monospace;}
  .wrap{max-width:1200px;margin:0 auto;padding:0 32px;}
  img,svg.responsive{max-width:100%;display:block;}
  a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
    outline:2px solid var(--signal);outline-offset:3px;
  }

  /* logo mark reused as inline component */
  .mark{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;}

  /* ---------- NAV ---------- */
  header{position:fixed;top:0;left:0;right:0;z-index:100;padding:22px 0;transition:all .3s ease;border-bottom:1px solid transparent;}
  header.scrolled{background:rgba(249,247,242,0.92);backdrop-filter:blur(8px);padding:16px 0;border-bottom:1px solid var(--line);}
  header .wrap{display:flex;align-items:center;justify-content:space-between;}
  .brand{display:flex;align-items:center;gap:12px;}
  .brand-name{font-family:'Space Grotesk';font-weight:700;font-size:20px;letter-spacing:0.01em;}
  .brand-name span{color:var(--signal);}
  nav.links{display:flex;gap:38px;align-items:center;}
  nav.links a{font-family:'IBM Plex Mono';font-size:12.5px;text-transform:uppercase;letter-spacing:0.06em;color:var(--muted-light);transition:color .2s ease;}
  nav.links a:hover{color:var(--void);}
  .nav-cta{background:var(--void);color:var(--bone) !important;padding:10px 20px;}
  .nav-cta:hover{background:var(--signal) !important;color:var(--bone) !important;}
  .burger{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--void);}

  /* ---------- HERO ---------- */
  .hero{background:var(--bone-2);color:var(--void);padding:180px 0 0;position:relative;overflow:hidden;}
  .hero-inner{position:relative;z-index:2;}
  .eyebrow{font-family:'IBM Plex Mono';font-size:12.5px;letter-spacing:0.14em;color:var(--signal);text-transform:uppercase;display:flex;align-items:center;gap:10px;margin-bottom:26px;}
  .eyebrow::before{content:"";width:26px;height:1px;background:var(--signal);}
  h1.hero-title{font-family:'Space Grotesk';font-size:clamp(40px,6.4vw,84px);font-weight:700;line-height:1.05;max-width:840px;letter-spacing:-0.01em;}
  h1.hero-title .accent{color:var(--signal);}
  .hero-sub{max-width:540px;color:var(--muted-light);font-size:17px;margin-top:26px;line-height:1.7;}
  .hero-cta-row{display:flex;gap:16px;margin-top:38px;flex-wrap:wrap;}
  .btn{font-family:'IBM Plex Mono';font-size:13px;letter-spacing:0.03em;padding:14px 26px;border:1px solid var(--line);display:inline-flex;align-items:center;gap:10px;transition:all .2s ease;text-transform:uppercase;font-weight:500;}
  .btn-primary{background:var(--signal);color:#fff;border-color:var(--signal);}
  .btn-primary:hover{background:#ff6845;transform:translateY(-1px);}
  .btn-ghost{color:var(--void);border-color:var(--line);}
  .btn-ghost:hover{border-color:var(--signal);color:var(--signal);}

  /* hero crossing diagram - the signature element */
  .hero-diagram{margin-top:90px;padding-top:0;}
  .crossing-caption{display:flex;justify-content:space-between;margin-top:18px;padding-top:22px;border-top:1px solid var(--line);}
  .cc-item{font-family:'IBM Plex Mono';font-size:11.5px;color:var(--muted-light);text-transform:uppercase;letter-spacing:0.06em;}
  .cc-item b{color:var(--void);font-weight:600;}

  /* ---------- SECTION GENERIC ---------- */
  section{padding:120px 0;}
  .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:64px;flex-wrap:wrap;}
  .section-tag{font-family:'IBM Plex Mono';font-size:12.5px;letter-spacing:0.14em;text-transform:uppercase;color:var(--slate);margin-bottom:14px;display:block;}
  .section-title{font-family:'Space Grotesk';font-size:clamp(30px,3.6vw,46px);font-weight:700;line-height:1.08;max-width:620px;letter-spacing:-0.01em;}
  .section-desc{max-width:380px;color:var(--muted-light);font-size:15px;line-height:1.7;}

  /* ---------- ABOUT ---------- */
  .about{background:var(--bone);}
  .about-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:80px;align-items:start;}
  .about-text p{color:var(--muted-light);font-size:16px;margin-bottom:20px;max-width:520px;}
  .about-text p strong{color:var(--void);font-weight:600;}
  .fact-list{border-top:1px solid var(--line);}
  .fact{display:flex;justify-content:space-between;padding:18px 0;border-bottom:1px solid var(--line);gap:20px;}
  .fact-k{font-family:'IBM Plex Mono';font-size:12.5px;color:var(--muted-light);text-transform:uppercase;letter-spacing:0.05em;}
  .fact-v{font-family:'IBM Plex Mono';font-size:13.5px;font-weight:600;text-align:right;}

  /* ---------- SERVICES ---------- */
  .services{background:var(--bone);color:var(--void);}
  .services .section-tag{color:var(--signal);}
  .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
  .service-card{background:var(--card);padding:36px 30px;transition:background .25s ease;}
  .service-card:hover{background:var(--bone-2);}
  .service-icon{width:38px;height:38px;margin-bottom:24px;color:var(--signal);}
  .service-title{font-family:'Space Grotesk';font-size:20px;font-weight:700;margin-bottom:12px;}
  .service-desc{font-size:13.5px;color:var(--muted-light);line-height:1.65;}

  /* ---------- DIFFERENTIATOR (the handoff story) ---------- */
  .heel{background:var(--bone-2);}
  .heel-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:70px;align-items:center;}
  .heel-quote{font-family:'Space Grotesk';font-size:clamp(26px,2.6vw,36px);font-weight:600;line-height:1.3;letter-spacing:-0.01em;}
  .heel-quote .accent{color:var(--signal);}
  .heel-points{display:flex;flex-direction:column;gap:0;}
  .heel-point{display:flex;gap:20px;padding:24px 0;border-bottom:1px solid var(--line);}
  .heel-point:first-child{border-top:1px solid var(--line);}
  .heel-num{font-family:'IBM Plex Mono';font-size:12px;color:var(--signal);flex-shrink:0;padding-top:3px;}
  .heel-point-title{font-family:'Space Grotesk';font-weight:700;font-size:16px;margin-bottom:6px;}
  .heel-point-desc{font-size:13.5px;color:var(--muted-light);line-height:1.6;}

  /* ---------- PROCESS ---------- */
  .process{background:var(--bone);}
  .process-line{display:grid;grid-template-columns:repeat(5,1fr);position:relative;}
  .process-line::before{content:"";position:absolute;top:16px;left:0;right:0;height:1px;background:repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 14px);}
  .step{position:relative;padding-right:20px;}
  .step-num{font-family:'IBM Plex Mono';font-size:13px;color:var(--bone);background:var(--void);width:32px;height:32px;display:flex;align-items:center;justify-content:center;position:relative;z-index:2;margin-bottom:24px;}
  .step-num.signal{background:var(--signal);}
  .step-title{font-family:'Space Grotesk';font-size:18px;font-weight:700;margin-bottom:10px;}
  .step-desc{font-size:13px;color:var(--muted-light);line-height:1.6;max-width:200px;}

  /* ---------- NETWORK ---------- */
  .network{background:var(--bone-2);color:var(--void);overflow:hidden;}
  .network .section-tag{color:var(--signal);}
  .route-legend{display:flex;gap:40px;margin-top:32px;flex-wrap:wrap;}
  .legend-item{display:flex;align-items:center;gap:10px;font-family:'IBM Plex Mono';font-size:12px;color:var(--muted-light);}
  .legend-dot{width:9px;height:9px;border-radius:50%;}

  /* ---------- CONTACT ---------- */
  .contact{background:var(--bone);color:var(--void);}
  .contact-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:80px;}
  .contact-info p{color:var(--muted-light);font-size:15px;max-width:400px;margin-bottom:32px;line-height:1.7;}
  .office{border-top:1px solid var(--line);padding:20px 0;}
  .office-city{font-family:'Space Grotesk';font-size:21px;font-weight:700;margin-bottom:6px;}
  .office-addr{font-family:'IBM Plex Mono';font-size:13px;color:var(--muted-light);line-height:1.6;}
  form{display:flex;flex-direction:column;gap:20px;}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
  label{font-family:'IBM Plex Mono';font-size:11px;text-transform:uppercase;letter-spacing:0.08em;color:var(--muted-light);margin-bottom:8px;display:block;}
  input,textarea,select{width:100%;background:transparent;border:none;border-bottom:1px solid var(--line);color:var(--void);font-family:'Inter';font-size:15px;padding:10px 0;}
  textarea{resize:vertical;min-height:80px;}
  input::placeholder,textarea::placeholder{color:#A9A398;}
  select option{background:var(--bone);}
  .submit-row{display:flex;align-items:center;gap:20px;margin-top:8px;flex-wrap:wrap;}
  .form-note{font-family:'IBM Plex Mono';font-size:11px;color:var(--signal);}

  /* ---------- FOOTER ---------- */
  footer{background:var(--bone-2);color:var(--muted-light);padding:36px 0;border-top:1px solid var(--line);}
  footer .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;}
  footer .mono{font-size:11.5px;}

  .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease, transform .7s ease;}
  .reveal.in{opacity:1;transform:translateY(0);}
  @media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none;transition:none;} html{scroll-behavior:auto;}}

  @media (max-width: 980px){
    .about-grid,.contact-grid,.heel-grid{grid-template-columns:1fr;gap:48px;}
    .service-grid{grid-template-columns:repeat(2,1fr);}
    .process-line{grid-template-columns:repeat(3,1fr);row-gap:40px;}
    .process-line::before{display:none;}
  }
  @media (max-width: 680px){
    nav.links{position:fixed;top:0;right:-100%;height:100vh;width:78%;background:var(--bone-2);flex-direction:column;justify-content:center;transition:right .35s ease;gap:28px;border-left:1px solid var(--line);}
    nav.links.open{right:0;}
    .burger{display:block;}
    .service-grid{grid-template-columns:1fr;}
    .process-line{grid-template-columns:repeat(2,1fr);}
    .form-row{grid-template-columns:1fr;}
    section{padding:80px 0;}
    .hero{padding-top:140px;}
  }

  /* ---------- PROCESS STEP LINKS ---------- */
  .step-link{display:block;color:inherit;}
  .step-link .step{transition:transform .2s ease;}
  .step-link:hover .step{transform:translateY(-3px);}
  .step-link:hover .step-title{color:var(--signal);}
  .step-arrow{display:inline-flex;align-items:center;gap:6px;font-family:'IBM Plex Mono';font-size:11px;color:var(--slate);margin-top:12px;letter-spacing:0.04em;text-transform:uppercase;}
  .step-link:hover .step-arrow{color:var(--signal);}

  /* ---------- DETAIL PAGE ---------- */
  .detail-hero{background:var(--bone-2);padding:170px 0 90px;}
  .detail-crumb{font-family:'IBM Plex Mono';font-size:12px;color:var(--slate);letter-spacing:0.05em;text-transform:uppercase;margin-bottom:22px;display:flex;align-items:center;gap:10px;}
  .detail-crumb a{color:var(--slate);}
  .detail-crumb a:hover{color:var(--void);}
  .detail-num{font-family:'Space Grotesk';font-size:15px;font-weight:700;color:var(--signal);background:rgba(255,77,46,0.1);padding:4px 10px;display:inline-block;margin-bottom:20px;}
  .detail-title{font-family:'Space Grotesk';font-size:clamp(34px,5vw,60px);font-weight:700;line-height:1.06;max-width:760px;letter-spacing:-0.01em;}
  .detail-lede{max-width:560px;color:var(--muted-light);font-size:17px;margin-top:22px;line-height:1.7;}

  .detail-body{padding:90px 0;}
  .detail-grid{display:grid;grid-template-columns:1.3fr 0.7fr;gap:70px;align-items:start;}
  .detail-block{margin-bottom:44px;}
  .detail-block:last-child{margin-bottom:0;}
  .detail-block h3{font-family:'Space Grotesk';font-size:22px;font-weight:700;margin-bottom:14px;}
  .detail-block p{color:var(--muted-light);font-size:15.5px;line-height:1.75;max-width:560px;margin-bottom:14px;}
  .detail-list{list-style:none;}
  .detail-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--muted-light);line-height:1.6;}
  .detail-list li:first-child{border-top:1px solid var(--line);}
  .detail-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--signal);flex-shrink:0;margin-top:7px;}
  .detail-side{background:var(--bone-2);padding:32px;}
  .detail-side-title{font-family:'IBM Plex Mono';font-size:11px;letter-spacing:0.08em;text-transform:uppercase;color:var(--slate);margin-bottom:20px;}
  .detail-fact{padding:14px 0;border-bottom:1px solid var(--line);}
  .detail-fact:first-of-type{border-top:1px solid var(--line);}
  .detail-fact-k{font-family:'IBM Plex Mono';font-size:11px;color:var(--muted-light);text-transform:uppercase;letter-spacing:0.04em;margin-bottom:4px;}
  .detail-fact-v{font-family:'Space Grotesk';font-size:16px;font-weight:700;}

  .step-nav{border-top:1px solid var(--line);padding:40px 0;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;}
  .step-nav-link{font-family:'IBM Plex Mono';font-size:12.5px;text-transform:uppercase;letter-spacing:0.05em;color:var(--muted-light);display:flex;align-items:center;gap:8px;}
  .step-nav-link:hover{color:var(--signal);}
  .step-nav-link span{color:var(--void);font-family:'Space Grotesk';font-size:16px;font-weight:700;text-transform:none;letter-spacing:0;}
  .step-nav-link.next{margin-left:auto;text-align:right;}

  @media (max-width: 980px){
    .detail-grid{grid-template-columns:1fr;gap:44px;}
  }