:root{
    --ink:#0E141B;
    --ink-2:#161F29;
    --paper:#F5F4F0;
    --paper-2:#EDEBE4;
    --blaze:#06A0DC;
    --blaze-deep:#0A5F8A;
    --blaze-dim:#084468;
    --signal:#D8A94E;
    --steel:#6B7480;
    --steel-light:#9CA3AF;
    --line-dark:rgba(245,244,240,0.14);
    --line-light:rgba(14,20,27,0.12);
    --white:#FFFFFF;
    --radius:2px;
    --display:'Big Shoulders Display', sans-serif;
    --body:'Inter', sans-serif;
    --mono:'IBM Plex Mono', monospace;
  }

  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:var(--body);
    color:var(--ink);
    background:var(--paper);
    line-height:1.5;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%; display:block;}
  a{color:inherit; text-decoration:none;}
  ul{list-style:none;}
  button{font-family:inherit; cursor:pointer;}
  section{position:relative;}
  .wrap{
    max-width:1200px;
    margin:0 auto;
    padding:0 32px;
  }
  @media (max-width:640px){ .wrap{padding:0 20px;} }

  :focus-visible{
    outline:3px solid var(--blaze);
    outline-offset:3px;
  }

  @media (prefers-reduced-motion: reduce){
    *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important;}
  }

  /* ---------- Utility: eyebrow / mono labels ---------- */
  .eyebrow{
    font-family:var(--mono);
    font-size:12px;
    letter-spacing:0.12em;
    text-transform:uppercase;
    color:var(--blaze-deep);
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:18px;
  }
  .eyebrow::before{
    content:'';
    width:22px;
    height:1px;
    background:currentColor;
    display:inline-block;
  }
  .hero .eyebrow, .projects .eyebrow{ color:var(--blaze); }

  .sheet-tag{
    font-family:var(--mono);
    font-size:11px;
    letter-spacing:0.06em;
    padding:4px 9px;
    border:1px solid currentColor;
    border-radius:var(--radius);
    display:inline-block;
  }

  /* ---------- Corner registration marks (signature motif) ---------- */
  .blueprint-frame{
    position:relative;
  }
  .blueprint-frame::before,
  .blueprint-frame::after,
  .blueprint-frame .cross-tl,
  .blueprint-frame .cross-br{
    content:'';
    position:absolute;
    width:14px;
    height:14px;
    pointer-events:none;
  }
  .cross{
    position:absolute;
    width:16px;
    height:16px;
    pointer-events:none;
  }
  .cross::before,.cross::after{
    content:'';
    position:absolute;
    background:currentColor;
  }
  .cross::before{ width:100%; height:1px; top:50%; left:0; transform:translateY(-50%); }
  .cross::after{ width:1px; height:100%; left:50%; top:0; transform:translateX(-50%); }
  .cross.tl{ top:-8px; left:-8px; }
  .cross.tr{ top:-8px; right:-8px; }
  .cross.bl{ bottom:-8px; left:-8px; }
  .cross.br{ bottom:-8px; right:-8px; }

  /* ---------- Header ---------- */
  header{
    position:fixed;
    top:0; left:0; right:0;
    z-index:100;
    padding:22px 0;
    transition:background 0.3s ease, padding 0.3s ease, border-color 0.3s ease;
    border-bottom:1px solid transparent;
  }
  header.scrolled{
    background:rgba(14,20,27,0.92);
    backdrop-filter:blur(10px);
    padding:14px 0;
    border-bottom-color:var(--line-dark);
  }
  header .wrap{
    display:flex;
    align-items:center;
    justify-content:space-between;
  }
  .logo{
    font-family:var(--display);
    font-weight:800;
    font-size:22px;
    letter-spacing:0.01em;
    color:var(--white);
    display:flex;
    align-items:center;
    gap:12px;
    text-transform:uppercase;
  }
  .logo-word{ color:inherit; white-space:nowrap; }
  .logo-word span{ color:var(--blaze); }
  .logo-badge{
    background:var(--white);
    border-radius:6px;
    padding:4px 8px;
    display:inline-flex;
    align-items:center;
    line-height:0;
  }
  .logo-icon-img{ height:28px; width:auto; display:block; }
  .foot-logo-badge{
    background:var(--white);
    border-radius:8px;
    padding:16px 20px;
    display:inline-block;
    margin-bottom:20px;
  }
  .foot-logo-img{ width:160px; height:auto; display:block; }
  nav.main-nav{
    display:flex;
    gap:36px;
  }
  nav.main-nav a{
    font-size:14px;
    font-weight:500;
    color:var(--white);
    opacity:0.85;
    position:relative;
    padding:4px 0;
  }
  nav.main-nav a:hover{opacity:1;}
  nav.main-nav a::after{
    content:'';
    position:absolute;
    left:0; bottom:-2px;
    width:0; height:2px;
    background:var(--blaze);
    transition:width 0.25s ease;
  }
  nav.main-nav a:hover::after{width:100%;}
  .header-cta{
    display:flex;
    align-items:center;
    gap:24px;
  }
  .btn{
    font-family:var(--mono);
    font-size:12.5px;
    letter-spacing:0.04em;
    text-transform:uppercase;
    padding:12px 22px;
    border-radius:var(--radius);
    display:inline-flex;
    align-items:center;
    gap:10px;
    transition:transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
    border:1px solid transparent;
    white-space:nowrap;
  }
  .btn-solid{
    background:var(--blaze-deep);
    color:var(--white);
  }
  .btn-solid:hover{ background:var(--blaze-dim); transform:translateY(-1px); }
  .btn-outline-dark{
    border-color:rgba(255,255,255,0.35);
    color:var(--white);
  }
  .btn-outline-dark:hover{ border-color:var(--white); }
  .btn-outline-light{
    border-color:var(--ink);
    color:var(--ink);
  }
  .btn-outline-light:hover{ background:var(--ink); color:var(--white); }

  .nav-toggle{
    display:none;
    background:none; border:none;
    width:28px; height:20px;
    position:relative;
  }
  .nav-toggle span{
    position:absolute; left:0; width:100%; height:2px; background:var(--white);
    transition:all 0.25s ease;
  }
  .nav-toggle span:nth-child(1){top:0;}
  .nav-toggle span:nth-child(2){top:9px;}
  .nav-toggle span:nth-child(3){top:18px;}

  @media (max-width:900px){
    nav.main-nav{ display:none; }
    .header-cta .btn-outline-dark{ display:none; }
    .nav-toggle{ display:block; }
  }

  /* ---------- Hero ---------- */
  .hero{
    background:var(--ink);
    color:var(--white);
    min-height:100vh;
    display:flex;
    align-items:center;
    padding-top:120px;
    overflow:hidden;
    position:relative;
  }
  .hero::before{
    content:'';
    position:absolute;
    inset:0;
    background-image:
      linear-gradient(var(--line-dark) 1px, transparent 1px),
      linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
    background-size:56px 56px;
    mask-image:radial-gradient(ellipse 80% 60% at 65% 40%, black 10%, transparent 75%);
    opacity:0.7;
  }
  .hero-inner{
    position:relative;
    z-index:2;
    width:100%;
  }
  .hero .wrap{ padding-top:20px; padding-bottom:60px; }
  .hero-grid{
    display:grid;
    grid-template-columns:1.1fr 0.9fr;
    gap:60px;
    align-items:end;
  }
  .hero-head{
    font-family:var(--display);
    font-weight:800;
    font-size:clamp(48px, 6.6vw, 96px);
    line-height:0.94;
    text-transform:uppercase;
    letter-spacing:0.005em;
  }
  .hero-head .accent{ color:var(--blaze); }
  .hero-head .outline{
    -webkit-text-stroke:1.5px rgba(255,255,255,0.55);
    color:transparent;
  }
  .hero-sub{
    font-size:17px;
    color:rgba(245,244,240,0.72);
    max-width:480px;
    margin-top:26px;
    line-height:1.65;
  }
  .hero-cta-row{
    display:flex;
    gap:16px;
    margin-top:38px;
    flex-wrap:wrap;
  }
  .hero-side{
    border-left:1px solid var(--line-dark);
    padding-left:36px;
  }
  .hero-side-label{
    font-family:var(--mono);
    font-size:12px;
    color:var(--steel-light);
    letter-spacing:0.08em;
    text-transform:uppercase;
    margin-bottom:14px;
  }
  .hero-side p{
    font-size:15px;
    color:rgba(245,244,240,0.68);
    line-height:1.6;
  }

  .stats-strip{
    border-top:1px solid var(--line-dark);
    margin-top:64px;
  }
  .stats-strip .wrap{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    padding-top:0;
    padding-bottom:0;
  }
  .stat{
    padding:26px 0;
    border-right:1px solid var(--line-dark);
    padding-left:4px;
  }
  .stat:last-child{ border-right:none; }
  .stat-num{
    font-family:var(--display);
    font-weight:800;
    font-size:38px;
    color:var(--white);
    display:flex;
    align-items:baseline;
    gap:2px;
  }
  .stat-num span{ color:var(--blaze); font-size:24px; }
  .stat-label{
    font-family:var(--mono);
    font-size:11.5px;
    color:var(--steel-light);
    text-transform:uppercase;
    letter-spacing:0.05em;
    margin-top:6px;
  }

  @media (max-width:900px){
    .hero-grid{ grid-template-columns:1fr; gap:36px; }
    .hero-side{ border-left:none; padding-left:0; border-top:1px solid var(--line-dark); padding-top:24px; }
    .stats-strip .wrap{ grid-template-columns:1fr 1fr; }
    .stat:nth-child(2){ border-right:none; }
  }
  @media (max-width:520px){
    .stats-strip .wrap{ grid-template-columns:1fr; }
    .stat{ border-right:none; border-bottom:1px solid var(--line-dark); }
  }

  /* ---------- Section heads ---------- */
  .section{ padding:110px 0; }
  @media (max-width:640px){ .section{ padding:72px 0; } }
  .section-head{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:40px;
    margin-bottom:56px;
    flex-wrap:wrap;
  }
  .section-title{
    font-family:var(--display);
    font-weight:800;
    font-size:clamp(32px,4.2vw,52px);
    text-transform:uppercase;
    line-height:1;
  }
  .section-desc{
    max-width:360px;
    color:var(--steel);
    font-size:15px;
    line-height:1.65;
  }

  .reveal{
    opacity:0;
    transform:translateY(24px);
    transition:opacity 0.7s ease, transform 0.7s ease;
  }
  .reveal.in{ opacity:1; transform:translateY(0); }

  /* ---------- Why us ---------- */
  .why{ background:var(--paper); }
  .why-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:1px;
    background:var(--line-light);
    border:1px solid var(--line-light);
  }
  .why-card{
    background:var(--paper);
    padding:34px 28px;
    position:relative;
  }
  .why-num{
    font-family:var(--mono);
    font-size:12px;
    color:var(--blaze-deep);
  }
  .why-title{
    font-family:var(--display);
    font-weight:700;
    font-size:22px;
    text-transform:uppercase;
    margin:16px 0 10px;
    line-height:1.05;
  }
  .why-text{ font-size:14px; color:var(--steel); line-height:1.6; }
  @media (max-width:900px){ .why-grid{ grid-template-columns:1fr 1fr; } }
  @media (max-width:560px){ .why-grid{ grid-template-columns:1fr; } }

  /* ---------- Services ---------- */
  .services{ background:var(--ink); color:var(--white); }
  .services .section-desc{ color:rgba(245,244,240,0.65); }
  .services .eyebrow{ color:var(--blaze); }
  .svc-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:2px;
  }
  .svc-card{
    padding:44px 36px;
    min-height:270px;
    display:flex;
    flex-direction:column;
    justify-content:space-between;
    position:relative;
    overflow:hidden;
    transition:background 0.35s ease;
  }
  .svc-card:nth-child(1){ background:#151E27; }
  .svc-card:nth-child(2){ background:#12191F; }
  .svc-card:nth-child(3){ background:#12191F; }
  .svc-card:nth-child(4){ background:#151E27; }
  .svc-card:hover{ background:var(--ink-2); }
  .svc-index{
    font-family:var(--mono);
    font-size:13px;
    color:var(--steel-light);
  }
  .svc-name{
    font-family:var(--display);
    font-weight:800;
    font-size:30px;
    text-transform:uppercase;
    line-height:1.02;
    margin-top:16px;
  }
  .svc-desc{
    font-size:14.5px;
    color:rgba(245,244,240,0.62);
    margin-top:14px;
    max-width:400px;
    line-height:1.6;
  }
  .svc-bar{
    position:absolute;
    left:0; bottom:0;
    height:3px;
    width:0%;
    background:var(--blaze);
    transition:width 0.35s ease;
  }
  .svc-card:nth-child(even) .svc-bar{ background:var(--signal); }
  .svc-card:hover .svc-bar{ width:100%; }
  @media (max-width:760px){ .svc-grid{ grid-template-columns:1fr; } }

  /* ---------- Process ---------- */
  .process{ background:var(--paper); }
  .proc-list{
    border-top:1px solid var(--line-light);
  }
  .proc-item{
    display:grid;
    grid-template-columns:110px 1fr 1fr;
    gap:32px;
    padding:34px 0;
    border-bottom:1px solid var(--line-light);
    align-items:start;
  }
  .proc-step{
    font-family:var(--display);
    font-weight:800;
    font-size:44px;
    color:var(--blaze-dim);
    line-height:1;
  }
  .proc-title{
    font-family:var(--display);
    font-weight:700;
    font-size:24px;
    text-transform:uppercase;
    line-height:1.05;
  }
  .proc-text{ color:var(--steel); font-size:14.5px; line-height:1.65; }
  @media (max-width:760px){
    .proc-item{ grid-template-columns:56px 1fr; }
    .proc-item .proc-text{ grid-column:2/3; }
    .proc-step{ font-size:30px; }
  }

  /* ---------- Projects ---------- */
  .projects{ background:var(--ink); color:var(--white); }
  .projects .section-desc{ color:rgba(245,244,240,0.65); }
  .proj-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:28px;
  }
  .proj-card{
    border:1px solid var(--line-dark);
    padding:18px;
    position:relative;
  }
  .proj-image{
    aspect-ratio:16/10;
    position:relative;
    overflow:hidden;
    background-color:#0E141B;
    background-size:cover;
    background-position:center;
    border:1px solid var(--line-dark);
  }
  .proj-image.has-photo::after{
    content:'';
    position:absolute; inset:0;
    background:linear-gradient(180deg, transparent 45%, rgba(14,20,27,0.72) 100%);
  }
  .proj-image:not(.has-photo){
    background-image:
      repeating-linear-gradient(45deg, rgba(6,160,220,0.12) 0 2px, transparent 2px 34px),
      linear-gradient(135deg, #1B2530, #0E141B);
  }
  .proj-image:not(.has-photo)::after{
    content:'';
    position:absolute; inset:0;
    background-image:linear-gradient(var(--line-dark) 1px, transparent 1px), linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
    background-size:24px 24px;
  }
  .proj-image-label{
    position:absolute;
    bottom:12px; left:14px;
    font-family:var(--mono);
    font-size:10.5px;
    color:rgba(245,244,240,0.85);
    letter-spacing:0.05em;
    z-index:2;
  }
  .proj-meta{
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    margin-top:18px;
    gap:16px;
  }
  .proj-name{
    font-family:var(--display);
    font-weight:700;
    font-size:21px;
    text-transform:uppercase;
    line-height:1.1;
  }
  .proj-loc{
    font-size:13px;
    color:var(--steel-light);
    margin-top:6px;
  }
  .proj-specs{
    text-align:right;
    font-family:var(--mono);
    font-size:11.5px;
    color:var(--steel-light);
    white-space:nowrap;
  }
  .proj-specs strong{ color:var(--white); display:block; font-size:13px; }
  @media (max-width:760px){ .proj-grid{ grid-template-columns:1fr; } }

  /* ---------- Sectors ---------- */
  .sectors{ background:var(--paper-2); }
  .sect-row{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    border-top:1px solid var(--line-light);
    border-left:1px solid var(--line-light);
  }
  .sect-item{
    border-right:1px solid var(--line-light);
    border-bottom:1px solid var(--line-light);
    padding:38px 24px;
    text-align:center;
  }
  .sect-item .eyebrow{ justify-content:center; }
  .sect-item .eyebrow::before{ display:none; }
  .sect-name{
    font-family:var(--display);
    font-weight:700;
    font-size:20px;
    text-transform:uppercase;
  }
  @media (max-width:760px){ .sect-row{ grid-template-columns:1fr 1fr; } }
  @media (max-width:460px){ .sect-row{ grid-template-columns:1fr; } }

  /* ---------- CTA band ---------- */
  .cta-band{
    background:var(--blaze-deep);
    color:var(--white);
    padding:90px 0;
    position:relative;
    overflow:hidden;
  }
  .cta-band::before{
    content:'';
    position:absolute; inset:0;
    background-image:linear-gradient(rgba(255,255,255,0.14) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.14) 1px, transparent 1px);
    background-size:48px 48px;
    mask-image:linear-gradient(to right, black, transparent 70%);
  }
  .cta-inner{
    position:relative; z-index:2;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:40px;
    flex-wrap:wrap;
  }
  .cta-title{
    font-family:var(--display);
    font-weight:800;
    font-size:clamp(30px,4vw,48px);
    text-transform:uppercase;
    max-width:560px;
    line-height:1.02;
  }
  .cta-band .btn-solid{ background:var(--ink); }
  .cta-band .btn-solid:hover{ background:#000; }

  /* ---------- Footer ---------- */
  footer{
    background:var(--ink);
    color:rgba(245,244,240,0.75);
    padding:70px 0 30px;
  }
  .foot-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1fr;
    gap:40px;
    padding-bottom:50px;
    border-bottom:1px solid var(--line-dark);
  }
  .foot-brand .logo{ margin-bottom:16px; }
  .foot-brand p{ font-size:14px; max-width:280px; line-height:1.65; color:var(--steel-light); }
  .foot-col-title{
    font-family:var(--mono);
    font-size:11.5px;
    letter-spacing:0.08em;
    text-transform:uppercase;
    color:var(--steel-light);
    margin-bottom:16px;
  }
  .foot-col a, .foot-col li{
    display:block;
    font-size:14px;
    margin-bottom:10px;
    color:rgba(245,244,240,0.8);
  }
  .foot-col a:hover{ color:var(--blaze); }
  .foot-bottom{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding-top:26px;
    font-size:12.5px;
    color:var(--steel-light);
    flex-wrap:wrap;
    gap:12px;
  }
  .foot-bottom .sheet-tag{ color:var(--steel-light); }
  @media (max-width:900px){ .foot-grid{ grid-template-columns:1fr 1fr; } }
  @media (max-width:540px){ .foot-grid{ grid-template-columns:1fr; } }

  /* ---------- Mobile nav overlay ---------- */
  .mobile-nav{
    position:fixed;
    inset:0;
    background:var(--ink);
    z-index:99;
    display:flex;
    flex-direction:column;
    justify-content:center;
    padding:32px;
    transform:translateY(-100%);
    transition:transform 0.35s ease;
  }
  .mobile-nav.open{ transform:translateY(0); }
  .mobile-nav a{
    font-family:var(--display);
    font-weight:700;
    font-size:34px;
    text-transform:uppercase;
    color:var(--white);
    padding:14px 0;
    border-bottom:1px solid var(--line-dark);
  }
  .mobile-nav .btn{ margin-top:28px; align-self:flex-start; }