:root{
  --navy:#0A1930;
  --royal:#1D4ED8;
  --steel:#4C7CB0;
  --sky-tint:#EAF1FB;
  --paper:#F8F9FB;
  --ink:#1B2430;
  --line:#C7D4E5;
  --line-strong:#9FB4D1;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter',sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:'Space Grotesk',sans-serif;letter-spacing:-0.01em;}
a{color:inherit;text-decoration:none;}
.mono{font-family:'IBM Plex Mono',monospace;}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px;}

/* corner registration marks — blueprint document motif */
.corner-marks{position:relative;}
.corner-marks::before,.corner-marks::after,
.corner-marks .cm-tr,.corner-marks .cm-bl{
  content:"";position:absolute;width:18px;height:18px;
  border-color:var(--royal);border-style:solid;opacity:.55;
}
.corner-marks::before{top:0;left:0;border-width:2px 0 0 2px;}
.corner-marks::after{bottom:0;right:0;border-width:0 2px 2px 0;}
.corner-marks .cm-tr{top:0;right:0;border-width:2px 2px 0 0;}
.corner-marks .cm-bl{bottom:0;left:0;border-width:0 0 2px 2px;}

/* header */
header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(248,249,251,0.9);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 28px;max-width:1120px;margin:0 auto;}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;}
.logo-mark{width:28px;height:28px;border:2px solid var(--navy);position:relative;flex-shrink:0;}
.logo-mark::before{content:"";position:absolute;inset:5px;border:1px solid var(--royal);}
.rc-badge{
  font-size:10.5px;color:var(--steel);border:1px solid var(--line-strong);
  padding:3px 8px;border-radius:2px;letter-spacing:.04em;
}
nav.links{display:flex;gap:28px;font-size:14px;font-weight:500;}
nav.links a{opacity:.75;transition:opacity .2s;}
nav.links a:hover{opacity:1;color:var(--royal);}
.nav-cta{
  background:var(--navy);color:#fff;padding:9px 18px;font-size:13.5px;
  font-weight:600;border-radius:3px;
}
.burger{display:none;font-size:22px;background:none;border:none;cursor:pointer;color:var(--navy);}

/* hero */
.hero{
  padding:168px 0 100px;position:relative;overflow:hidden;
  background:
    linear-gradient(var(--paper) 0%, var(--paper) 100%);
}
.blueprint-grid{
  position:absolute;inset:0;z-index:0;opacity:.5;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:linear-gradient(to bottom, black, transparent 85%);
  mask-image:linear-gradient(to bottom, black, transparent 85%);
}
.hero-inner{position:relative;z-index:1;max-width:760px;}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--royal);
  letter-spacing:.12em;text-transform:uppercase;display:flex;align-items:center;gap:10px;margin-bottom:22px;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--royal);}
.hero h1{
  font-size:clamp(34px,5.2vw,58px);font-weight:700;line-height:1.08;color:var(--navy);
  margin-bottom:22px;
}
.hero h1 .accent{color:var(--royal);}
.hero p.sub{font-size:17px;color:#48566B;max-width:560px;margin-bottom:34px;}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center;}
.btn-primary{
  background:var(--navy);color:#fff;padding:14px 26px;font-weight:600;font-size:14.5px;
  border-radius:3px;display:inline-flex;align-items:center;gap:8px;transition:background .2s;
}
.btn-primary:hover{background:var(--royal);}
.btn-secondary{
  border:1px solid var(--line-strong);color:var(--navy);padding:14px 22px;font-weight:600;font-size:14.5px;
  border-radius:3px;transition:border-color .2s;
}
.btn-secondary:hover{border-color:var(--royal);color:var(--royal);}

/* section framing */
section{padding:88px 0;}
.section-head{max-width:600px;margin-bottom:52px;}
.tag{
  font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--steel);
  text-transform:uppercase;letter-spacing:.1em;margin-bottom:10px;display:block;
}
.section-head h2{font-size:clamp(26px,3.4vw,36px);color:var(--navy);font-weight:600;}
.section-head p{color:#5B6B80;margin-top:14px;font-size:15.5px;}

/* who we are */
.who{background:var(--navy);color:#fff;}
.who .wrap{display:grid;grid-template-columns:1.3fr 1fr;gap:56px;align-items:start;}
.who .tag{color:var(--steel);}
.who .section-head h2{color:#fff;}
.who p.body{color:#C6D2E4;font-size:15.5px;margin-top:16px;}
.stamp-card{
  background:#0F2440;border:1px solid rgba(255,255,255,.14);border-radius:4px;padding:26px;
}
.stamp-card .stamp-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:13.5px;}
.stamp-card .stamp-row:last-child{border-bottom:none;}
.stamp-card .stamp-row span:first-child{color:#8DA1BE;}
.stamp-card .stamp-row span:last-child{font-family:'IBM Plex Mono',monospace;color:#fff;}
.stamp-title{font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.1em;color:var(--steel);text-transform:uppercase;margin-bottom:14px;}

/* what we do */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.service-card{
  background:#fff;border:1px solid var(--line);padding:30px 24px;position:relative;border-radius:4px;
}
.service-card .num{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--steel);}
.service-card h3{font-size:19px;margin:14px 0 10px;color:var(--navy);}
.service-card p{font-size:14.5px;color:#5B6B80;}

/* how we do it */
.how{background:var(--sky-tint);}
.timeline{position:relative;padding-left:0;}
.timeline-line{position:absolute;left:23px;top:8px;bottom:8px;width:1px;background:var(--line-strong);}
.step{display:grid;grid-template-columns:48px 1fr;gap:20px;padding-bottom:38px;position:relative;}
.step:last-child{padding-bottom:0;}
.step-num{
  width:48px;height:48px;border-radius:50%;background:var(--navy);color:#fff;
  display:flex;align-items:center;justify-content:center;font-family:'IBM Plex Mono',monospace;
  font-size:14px;z-index:1;
}
.step h3{font-size:17.5px;color:var(--navy);margin-bottom:6px;}
.step p{font-size:14.5px;color:#5B6B80;max-width:520px;}

/* team */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.badge{
  background:#fff;border:1px solid var(--line);border-radius:4px;padding:22px;position:relative;
}
.badge .avatar{
  width:44px;height:44px;border-radius:3px;background:var(--sky-tint);color:var(--royal);
  display:flex;align-items:center;justify-content:center;font-family:'Space Grotesk',sans-serif;
  font-weight:700;font-size:15px;margin-bottom:16px;border:1px solid var(--line-strong);
}
.badge h3{font-size:16px;color:var(--navy);margin-bottom:5px;}
.badge p{font-size:13px;color:var(--steel);font-family:'IBM Plex Mono',monospace;line-height:1.5;}
.badge .id-tag{
  position:absolute;top:22px;right:22px;font-family:'IBM Plex Mono',monospace;font-size:10px;
  color:#B7C4D8;
}

/* case studies */
.work-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.work-card{
  border:1px solid var(--line);border-radius:4px;overflow:hidden;background:#fff;
  display:flex;flex-direction:column;
}
.work-thumb{
  aspect-ratio:16/11;background:var(--sky-tint);position:relative;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:16px 16px;
}
.work-thumb svg{position:absolute;inset:0;width:100%;height:100%;}
.work-body{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column;}
.work-status{
  font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--royal);background:var(--sky-tint);display:inline-flex;padding:3px 8px;border-radius:2px;
  margin-bottom:12px;width:fit-content;
}
.work-card h3{font-size:17px;color:var(--navy);margin-bottom:8px;}
.work-card p{font-size:13.5px;color:#5B6B80;flex:1;}

/* contact */
.contact{background:var(--navy);color:#fff;}
.contact .wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.contact h2{color:#fff;font-size:clamp(26px,3.4vw,36px);}
.contact p.sub{color:#C6D2E4;margin-top:14px;font-size:15.5px;max-width:460px;}
.contact-cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.contact .btn-primary{background:#fff;color:var(--navy);}
.contact .btn-primary:hover{background:var(--sky-tint);}
.contact .btn-secondary{border-color:rgba(255,255,255,.3);color:#fff;}
.contact .btn-secondary:hover{border-color:#fff;color:#fff;}
.contact-card{background:#0F2440;border:1px solid rgba(255,255,255,.14);border-radius:4px;padding:28px;}
.contact-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:14.5px;}
.contact-row:last-child{border-bottom:none;}
.contact-row span:first-child{color:#8DA1BE;}
.contact-row a{font-family:'IBM Plex Mono',monospace;color:#fff;}
.contact-row a:hover{color:var(--steel);}

.contact-form-title{font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.1em;color:var(--steel);text-transform:uppercase;margin-bottom:18px;}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:12.5px;color:#8DA1BE;margin-bottom:6px;font-family:'IBM Plex Mono',monospace;letter-spacing:.02em;}
.form-field input,.form-field textarea,.form-field select{
  width:100%;background:#0A1930;border:1px solid rgba(255,255,255,.16);border-radius:3px;
  padding:11px 12px;color:#fff;font-family:'Inter',sans-serif;font-size:14px;
}
.form-field select{appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6'><path d='M0 0 L5 6 L10 0' fill='none' stroke='%238DA1BE' stroke-width='1.4'/></svg>");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:32px;}
.form-field select option{background:#0A1930;color:#fff;}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{outline:none;border-color:var(--royal);}
.form-field textarea{resize:vertical;min-height:84px;}
.form-submit{
  width:100%;background:var(--royal);color:#fff;border:none;padding:13px 22px;font-weight:600;
  font-size:14.5px;border-radius:3px;cursor:pointer;transition:background .2s;font-family:'Inter',sans-serif;
}
.form-submit:hover{background:#2f5fe0;}
.form-submit:disabled{opacity:.6;cursor:not-allowed;}
.form-status{font-size:13px;margin-top:12px;font-family:'IBM Plex Mono',monospace;}
.form-status.success{color:#7FD79A;}
.form-status.error{color:#F0A0A0;}

footer{padding:34px 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:12px;color:#8493A6;}

@media (max-width:860px){
  nav.links, .nav-cta{display:none;}
  nav.links.active{display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:var(--paper);padding:20px;border-bottom:1px solid var(--line);box-shadow:0 4px 12px rgba(0,0,0,0.1);}
  .burger{display:block;}
  .who .wrap, .contact .wrap{grid-template-columns:1fr;}
  .services, .team-grid, .work-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:560px){
  .hero{padding:140px 0 70px;}
  .services, .team-grid, .work-grid{grid-template-columns:1fr;}
  section{padding:64px 0;}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;}
}