:root{
  --forest:#2C5F4A;
  --forest-dark:#1E4335;
  --ink:#1C231F;
  --paper:#F1F0E8;
  --paper-2:#E8E6DA;
  --amber:#B8863B;
  --current:#3E7C8C;
  --stone:#DAD7C9;
  --line:#C7C3B2;
  font-family:"Source Serif 4",Georgia,serif;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--paper);color:var(--ink);}
.display{font-family:"Space Grotesk",sans-serif;letter-spacing:-0.01em;}
.mono{font-family:"IBM Plex Mono",monospace;}
a{color:inherit;text-decoration:none;}

/* nav */
header{display:flex;align-items:center;justify-content:space-between;padding:22px 48px;border-bottom:1px solid var(--line);}
.logo{display:flex;align-items:center;gap:10px;}
.logo svg{width:30px;height:30px;}
.logo-text{font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:15px;line-height:1.15;}
.logo-text small{display:block;font-family:"IBM Plex Mono",monospace;font-weight:400;font-size:9.5px;letter-spacing:.09em;color:#5B6B62;text-transform:uppercase;margin-top:2px;}
nav{display:flex;gap:36px;font-family:"Space Grotesk",sans-serif;font-size:14px;}
nav a{padding-bottom:4px;border-bottom:2px solid transparent;color:#4A554E;cursor:pointer;}
nav a.active{color:var(--ink);border-color:var(--amber);}
.nav-cta{font-family:"Space Grotesk",sans-serif;font-size:13px;background:var(--forest);color:#F1F0E8;padding:10px 18px;border-radius:2px;cursor:pointer;white-space:nowrap;display:inline-block;}

main{max-width:1080px;margin:0 auto;padding:0 48px;}

/* ---- shared bits ---- */
.coord{font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.08em;color:var(--current);text-transform:uppercase;}
.eyebrow{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.eyebrow .rule{height:1px;width:34px;background:var(--current);}
.section{padding:72px 0;border-top:1px solid var(--line);}
.section:first-of-type{border-top:none;}
h1{font-family:"Space Grotesk",sans-serif;font-weight:500;font-size:44px;line-height:1.12;letter-spacing:-0.015em;margin:0 0 22px;}
h2{font-family:"Space Grotesk",sans-serif;font-weight:500;font-size:27px;line-height:1.2;margin:0 0 14px;}
h3{font-family:"Space Grotesk",sans-serif;font-weight:500;font-size:16px;margin:0 0 8px;}
p{font-size:16.5px;line-height:1.65;color:#3A4038;max-width:640px;}
.lede{font-size:19px;line-height:1.6;color:#2E352F;max-width:560px;}

/* hero */
.hero{padding:64px 0 56px;position:relative;}
.hero-grid{display:grid;grid-template-columns:1.15fr 0.85fr;gap:40px;align-items:end;}
.hero-cta-row{display:flex;gap:14px;margin-top:30px;}
.btn-primary{font-family:"Space Grotesk",sans-serif;font-size:14px;background:var(--forest);color:#F1F0E8;padding:13px 22px;border-radius:2px;cursor:pointer;border:none;display:inline-block;}
.btn-ghost{font-family:"Space Grotesk",sans-serif;font-size:14px;background:transparent;color:var(--ink);padding:13px 22px;border:1px solid var(--line);border-radius:2px;cursor:pointer;display:inline-block;}

/* proof strip */
.proof-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);margin-top:48px;padding-top:26px;}
.proof-item{border-left:1px solid var(--line);padding:0 20px;}
.proof-item:first-child{border-left:none;padding-left:0;}
.proof-num{font-family:"Space Grotesk",sans-serif;font-size:27px;font-weight:500;color:var(--forest);}
.proof-label{font-size:11.5px;font-family:"IBM Plex Mono",monospace;color:#5B6B62;line-height:1.45;margin-top:6px;letter-spacing:.01em;}

/* selected work teasers + full case cards */
.teaser-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:28px;}
.teaser-card{background:var(--paper);padding:26px 24px;}
.teaser-tag{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.05em;color:var(--current);text-transform:uppercase;margin-bottom:10px;}
.teaser-card p{font-size:14px;line-height:1.55;}

.work-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);margin-top:8px;}
.work-card{background:var(--paper);padding:32px 34px;}
.work-tag{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.05em;color:var(--current);text-transform:uppercase;margin-bottom:12px;}
.work-card h3{font-size:19px;margin-bottom:10px;}
.work-card p{font-size:14.5px;max-width:none;}
.work-result{margin-top:14px;padding-top:14px;border-top:1px solid var(--stone);font-size:13px;color:#4A554E;}
.work-result strong{color:var(--ink);font-family:"Space Grotesk",sans-serif;font-weight:500;}
.work-note{font-size:12.5px;color:#6B7268;font-family:"IBM Plex Mono",monospace;}

/* two-column sector grid */
.sector-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);}
.sector{padding:36px 38px;position:relative;}
.sector + .sector{border-left:1px solid var(--line);}
.sector .crosshair{position:absolute;top:14px;left:14px;width:10px;height:10px;}
.sector ul{list-style:none;margin:18px 0 0;padding:0;}
.sector li{font-size:15px;color:#3A4038;padding:9px 0;border-top:1px solid var(--stone);}
.sector li:first-child{border-top:none;}

/* differentiators band */
.diff-band{background:var(--forest-dark);color:#EDEAD9;padding:52px 48px;margin:0 -48px;}
.diff-band h2{color:#F4F2E6;}
.diff-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 40px;margin-top:22px;}
.diff-item{display:flex;gap:12px;align-items:flex-start;}
.diff-item svg{flex:none;margin-top:3px;}
.diff-item p{color:#D9D5C3;font-size:14.5px;margin:0;max-width:none;}

/* about / timeline */
.timeline{margin-top:36px;border-left:1px solid var(--line);padding-left:28px;}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:"";position:absolute;left:-33px;top:4px;width:8px;height:8px;background:var(--amber);border-radius:50%;}
.tl-year{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--current);letter-spacing:.05em;}
.sector-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.sector-tags span{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.02em;color:#3A4038;border:1px solid var(--line);padding:7px 13px;background:var(--paper-2);}

/* engagement model stat cards */
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:34px;}
.stat{background:var(--paper);padding:26px 24px;}
.stat .num{font-family:"Space Grotesk",sans-serif;font-size:30px;font-weight:500;}
.stat .label{font-size:12.5px;color:#5B6B62;margin-top:4px;font-family:"IBM Plex Mono",monospace;letter-spacing:.03em;}

/* contact page */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;margin-top:34px;}
.field-card{border:1px solid var(--line);padding:30px 32px;background:var(--paper-2);}
.field-card label{display:block;font-family:"IBM Plex Mono",monospace;font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:#5B6B62;margin:16px 0 6px;}
.field-card label:first-child{margin-top:0;}
.field-card input,.field-card textarea{width:100%;border:1px solid var(--stone);background:#FBFAF5;padding:11px 12px;font-size:14px;color:var(--ink);font-family:"Source Serif 4",serif;}
.field-card textarea{resize:vertical;min-height:110px;}
.field-card input:focus,.field-card textarea:focus{outline:2px solid var(--current);outline-offset:1px;}
.field-card button{font-family:"Space Grotesk",sans-serif;font-size:14px;background:var(--forest);color:#F1F0E8;padding:13px 22px;border-radius:2px;cursor:pointer;border:none;margin-top:20px;}
.field-card .hp-field{position:absolute;left:-9999px;}
.info-list .info-item{display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--stone);}
.info-list .info-item:first-child{border-top:none;}
.info-item .k{font-family:"IBM Plex Mono",monospace;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--current);width:90px;flex:none;padding-top:2px;}

footer{border-top:1px solid var(--line);padding:34px 48px 46px;display:flex;justify-content:space-between;align-items:center;}
footer p{margin:0;font-size:12.5px;color:#6B7268;font-family:"IBM Plex Mono",monospace;}
footer nav{gap:22px;font-size:13px;}

.mobile-nav{display:none;}
@media(max-width:820px){
  .hero-grid,.sector-grid,.diff-grid,.stat-row,.contact-grid,.proof-strip,.teaser-grid,.work-grid{grid-template-columns:1fr;}
  .sector + .sector{border-left:none;border-top:1px solid var(--line);}
  .proof-item{border-left:none;border-top:1px solid var(--line);padding:14px 0 0;}
  .proof-item:first-child{border-top:none;padding-top:0;}
  header{padding:16px 22px;}
  main{padding:0 22px;}
  nav{display:none;}
  .nav-cta{display:none;}
  h1{font-size:30px;}
  .diff-band{margin:0 -22px;padding:36px 22px;}
  .mobile-nav{display:flex;gap:0;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--paper);z-index:5;}
  .mobile-nav a{flex:1;text-align:center;padding:13px 6px;font-family:"Space Grotesk",sans-serif;font-size:12.5px;color:#4A554E;border-bottom:2px solid transparent;cursor:pointer;}
  .mobile-nav a.active{color:var(--ink);border-color:var(--amber);}
  footer{flex-direction:column;gap:14px;align-items:flex-start;padding:28px 22px 36px;}
}