/* Campbell Dynamics — design system v3
   German industrial modernism: typographic hierarchy, hairline grid,
   flat surfaces, black + red on near-white, IBM Plex. */
:root{
  --red:#C41E24;
  --red-dark:#9A151A;
  --ink:#141414;
  --ink-soft:#3C3D42;
  --grey:#67696F;
  --line:#DEDCD6;
  --hair:#E6E4DE;
  --paper:#FAF9F6;
  --white:#FFFFFF;
  --max:1160px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'IBM Plex Sans',system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.62;font-size:16.5px}
h1,h2,h3,h4{font-family:'IBM Plex Sans',sans-serif;line-height:1.12;letter-spacing:-0.015em;font-weight:600}
img{max-width:100%;display:block}
a{color:var(--red);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
.mono,figcaption,.sec-kicker,.kicker,.breadcrumb,.num,.fh{font-family:'IBM Plex Mono',monospace}

/* ---------- top bar + header ---------- */
.topbar{background:var(--ink);color:#B9BAC0;font-size:12px;padding:6px 0;font-family:'IBM Plex Mono',monospace}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.topbar a{color:#fff;font-weight:500}
header.site{background:var(--white);border-bottom:2px solid var(--ink);position:sticky;top:0;z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 28px;max-width:var(--max);margin:0 auto;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand .logo{height:44px;width:auto}
.brand-name{font-weight:700;font-size:19px;color:var(--ink);letter-spacing:-0.01em;line-height:1.05}
.brand-name span{display:block;font-family:'IBM Plex Mono',monospace;font-size:10px;font-weight:500;letter-spacing:0.2em;color:var(--red);text-transform:uppercase;margin-top:4px}
nav.menu{display:flex;gap:4px;flex-wrap:wrap}
nav.menu a{color:var(--ink);font-weight:500;font-size:13px;letter-spacing:0.04em;text-transform:uppercase;padding:8px 12px;border-bottom:2px solid transparent;white-space:nowrap}
nav.menu a:hover{text-decoration:none;border-bottom-color:var(--ink)}
nav.menu a.active{border-bottom-color:var(--red);color:var(--red)}
nav.menu a.cta{background:var(--red);color:#fff;border-bottom:none;margin-left:8px}
nav.menu a.cta:hover{background:var(--red-dark)}

/* ---------- section subnav (document register) ---------- */
.subnav{background:var(--white);border-bottom:1px solid var(--line)}
.subnav .wrap{display:flex;gap:0;flex-wrap:wrap}
.subnav a{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--ink-soft);padding:11px 20px 10px;border-right:1px solid var(--hair);border-bottom:2px solid transparent}
.subnav a:first-of-type{border-left:1px solid var(--hair)}
.subnav a:hover{text-decoration:none;color:var(--ink);background:var(--paper)}
.subnav a.active{color:var(--red);border-bottom-color:var(--red);background:var(--paper)}
.subnav .sn-label{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--grey);padding:11px 20px 10px 0;letter-spacing:0.08em}

/* ---------- heroes ---------- */
.hero{background:var(--paper);border-bottom:1px solid var(--line)}
.hero::before{content:none}
.hero .wrap{position:relative;padding-top:88px;padding-bottom:88px}
.page-hero{background:var(--paper);border-bottom:1px solid var(--line)}
.page-hero::before{content:none}
.page-hero .wrap{position:relative;padding-top:52px;padding-bottom:48px}
.kicker{display:inline-block;font-size:12px;font-weight:500;letter-spacing:0.22em;text-transform:uppercase;color:var(--red);background:none;padding:0;margin-bottom:22px}
.kicker::before{content:"";display:inline-block;width:26px;height:2px;background:var(--red);vertical-align:middle;margin-right:12px}
.hero h1{font-size:clamp(36px,5.4vw,64px);font-weight:700;max-width:18ch;color:var(--ink);letter-spacing:-0.03em}
.hero h1 em{font-style:normal;color:var(--red)}
.page-hero h1{font-size:clamp(26px,3.6vw,42px);font-weight:700;max-width:28ch;color:var(--ink);letter-spacing:-0.02em}
.hero p.lede,.page-hero p.lede{max-width:64ch;margin-top:22px;font-size:17.5px;color:var(--ink-soft)}
.hero .actions{margin-top:40px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:13px;letter-spacing:0.05em;text-transform:uppercase;padding:13px 26px;border-radius:0}
.btn-red{background:var(--red);color:#fff;border:1px solid var(--red)}
.btn-red:hover{background:var(--red-dark);border-color:var(--red-dark);text-decoration:none}
.btn-ghost{border:1px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;text-decoration:none}
.breadcrumb{position:relative;font-size:12px;color:var(--grey);margin-bottom:18px}
.breadcrumb a{color:var(--grey)}
.breadcrumb a:hover{color:var(--ink)}

/* ---------- stat band ---------- */
.stats{background:var(--ink);color:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding-top:0;padding-bottom:0}
.stat{padding:30px 26px;border-left:1px solid #2C2D31}
.stat:first-child{border-left:none;padding-left:0}
.stat .n{font-family:'IBM Plex Mono',monospace;font-size:28px;font-weight:600;line-height:1.1;color:#fff}
.stat .l{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:0.1em;text-transform:uppercase;color:#96979E;margin-top:6px}
@media(max-width:820px){.stats .wrap{grid-template-columns:repeat(2,1fr)}.stat:nth-child(3){border-left:none;padding-left:0}}

/* ---------- sections & prose ---------- */
section{padding:76px 0}
section.tight{padding:52px 0}
.sec-kicker{font-size:12px;font-weight:500;letter-spacing:0.2em;text-transform:uppercase;color:var(--red);margin-bottom:14px}
.sec-kicker::before{content:"";display:inline-block;width:26px;height:2px;background:var(--red);vertical-align:middle;margin-right:12px}
h2.sec-title{font-size:clamp(24px,3.2vw,36px);font-weight:700;max-width:28ch;letter-spacing:-0.02em}
.sec-intro{max-width:68ch;margin-top:16px;color:var(--ink-soft)}
.prose{max-width:76ch}
.prose p{margin:0 0 18px;color:var(--ink-soft)}
.prose strong{color:var(--ink)}
.prose h2{font-size:24px;margin:44px 0 14px;padding-top:22px;border-top:1px solid var(--line)}
.prose h3{font-size:18px;margin:34px 0 12px}
.prose ul{margin:0 0 22px;padding-left:2px;list-style:none}
.prose ul li{position:relative;padding-left:24px;margin-bottom:9px;color:var(--ink-soft)}
.prose ul li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;background:var(--red)}
.prose ul ul{margin-top:9px;margin-bottom:0}
.prose em{color:var(--grey)}
.lead-strong{font-weight:600;color:var(--ink);margin-bottom:14px}

/* ---------- cards: flat index blocks ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:44px;border:1px solid var(--line);background:var(--white)}
.cards.two{grid-template-columns:repeat(2,1fr)}
.card{background:var(--white);border:none;border-left:1px solid var(--line);padding:30px 28px 26px;display:flex;flex-direction:column}
.card:first-child{border-left:none}
.card h3{font-size:18px;font-weight:600;margin:0 0 12px}
.card p{font-size:14.5px;color:var(--ink-soft);flex:1;margin:0}
.card .more{margin-top:20px;font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:12.5px;letter-spacing:0.04em;text-transform:uppercase}
.card .num{font-size:12px;font-weight:500;color:var(--red);letter-spacing:0.14em;margin-bottom:16px}
.card .num::after{content:"";display:block;width:26px;height:2px;background:var(--red);margin-top:10px}
@media(max-width:820px){.cards,.cards.two{grid-template-columns:1fr}.card{border-left:none;border-top:1px solid var(--line)}.card:first-child{border-top:none}}

/* ---------- tables ---------- */
.tablewrap{margin:34px 0;overflow-x:auto;border:1px solid var(--line);background:var(--white)}
table.cd{width:100%;border-collapse:collapse;font-size:14.5px;min-width:680px}
table.cd th{font-family:'IBM Plex Mono',monospace;text-align:left;font-size:11.5px;letter-spacing:0.12em;text-transform:uppercase;background:var(--ink);color:#fff;padding:12px 18px;font-weight:500}
table.cd td{padding:15px 18px;border-top:1px solid var(--hair);vertical-align:top;color:var(--ink-soft)}
table.cd td:first-child{font-weight:600;color:var(--ink);font-family:'IBM Plex Mono',monospace;font-size:13px}
table.cd td p{margin:0 0 10px}
table.cd td p:last-child{margin-bottom:0}
.tnote{font-size:13px;color:var(--grey);margin-top:14px}

/* ---------- image placeholders ---------- */
figure.ph{margin:36px auto}
.ph-box{border:1px dashed #B9B6AD;background:var(--white);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:34px 24px;min-height:170px}
.ph-box .t{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:11px;letter-spacing:0.2em;text-transform:uppercase;color:var(--grey)}
.ph-box .d{font-size:14px;color:var(--ink-soft);margin-top:8px;max-width:46ch}
.ph-box .f{font-size:12px;color:#A5A29A;margin-top:8px;font-family:'IBM Plex Mono',monospace}
figure.ph figcaption{font-size:12px;color:var(--grey);padding-top:10px;text-align:center}

/* ---------- real images ---------- */
figure.real{margin:36px auto;background:var(--white);border:1px solid var(--line);padding:0}
figure.real img{width:100%;height:auto;display:block}
figure.real figcaption{font-size:12px;color:var(--grey);padding:10px 14px;border-top:1px solid var(--hair);text-align:left}
figure.real figcaption::before{content:"Fig. ";color:var(--red)}

/* ---------- principal / testimonials ---------- */
.principal-grid{display:grid;grid-template-columns:340px 1fr;gap:56px;margin-top:44px;align-items:start}
.creds{display:flex;flex-wrap:wrap;gap:0;margin-top:22px;border:1px solid var(--line);background:var(--white)}
.chip{font-family:'IBM Plex Mono',monospace;font-size:11.5px;font-weight:500;letter-spacing:0.04em;border:none;border-right:1px solid var(--hair);background:none;padding:8px 12px;border-radius:0;color:var(--ink-soft)}
blockquote.testi{border-left:2px solid var(--red);padding:4px 0 4px 24px;margin:28px 0;font-size:16px;color:var(--ink-soft);font-style:normal;max-width:66ch}
blockquote.testi footer{font-family:'IBM Plex Mono',monospace;font-size:12px;font-weight:500;color:var(--ink);margin-top:12px}
@media(max-width:900px){.principal-grid{grid-template-columns:1fr}}

/* ---------- featured capability band ---------- */
.feature{background:var(--ink);color:#fff}
.feature .grid{display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:center}
.feature .sec-kicker{color:#E8837F}
.feature .sec-kicker::before{background:#E8837F}
.feature h2{color:#fff}
.feature p{color:#B9BAC0;margin-top:18px;max-width:56ch}
.feature figure{margin:0;border:1px solid #2C2D31;background:#0E0F12;padding:0}
.feature figcaption{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:#96979E;padding:9px 12px;border-top:1px solid #2C2D31;text-align:left}
.feature .actions{margin-top:30px;display:flex;gap:12px;flex-wrap:wrap}
.feature .btn-ghost{border-color:#5A5C65;color:#fff}
.feature .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
@media(max-width:900px){.feature .grid{grid-template-columns:1fr}}

/* ---------- contact band ---------- */
.contact{background:var(--ink);color:#fff}
.contact .sec-kicker{color:#E8837F}
.contact .sec-kicker::before{background:#E8837F}
.contact h2{color:#fff}
.contact .methods{display:flex;gap:0;flex-wrap:wrap;margin-top:36px;border:1px solid #2C2D31}
.method{padding:22px 32px;border-left:1px solid #2C2D31}
.method:first-child{border-left:none}
.method .l{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:0.18em;text-transform:uppercase;color:#96979E;margin-bottom:6px;font-weight:500}
.method .v{font-family:'IBM Plex Mono',monospace;font-size:19px;font-weight:600}
.method .v a{color:#fff}
.contact p.note{margin-top:34px;color:#96979E;font-size:14px;max-width:56ch}

/* ---------- misc ---------- */
.band-white{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.next-page{margin-top:52px;padding-top:24px;border-top:1px solid var(--line);font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:13px}
.case-meta{background:var(--white);border:1px solid var(--line);border-left:3px solid var(--red);padding:22px 26px;margin:0 0 34px}
.case-meta div{display:flex;gap:14px;margin-bottom:6px;font-size:14.5px}
.case-meta div:last-child{margin-bottom:0}
.case-meta .k{font-family:'IBM Plex Mono',monospace;font-weight:600;min-width:120px;color:var(--ink);font-size:12.5px;text-transform:uppercase;letter-spacing:0.06em;padding-top:2px}

/* ---------- footer ---------- */
footer.site{background:var(--ink);color:#96979E;font-size:13px;padding:34px 0 26px}
footer.site a{color:#B9BAC0}
.footgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-top:14px;padding-bottom:28px}
.fbrand{font-weight:700;font-size:16px;color:#fff;margin-bottom:10px}
.footgrid p{margin:0 0 10px;line-height:1.6}
.fh{font-size:11px;letter-spacing:0.18em;text-transform:uppercase;color:#67696F;margin-bottom:12px;font-weight:500}
.footgrid a{display:block;color:#B9BAC0;padding:3px 0;font-size:13px}
.footgrid a:hover{color:#fff}
.fbottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid #2C2D31;padding-top:16px;padding-bottom:4px;font-size:12px;font-family:'IBM Plex Mono',monospace}
@media(max-width:820px){.footgrid{grid-template-columns:1fr 1fr}}

/* ---------- reveal (additive; page complete without JS) ---------- */
body.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
body.js .reveal.in{opacity:1;transform:none}

/* ---------- qualification panel ---------- */
.qual{margin-top:22px;border:1px solid var(--line);background:var(--white)}
.qrow{display:flex;gap:14px;padding:11px 14px;border-top:1px solid var(--hair);font-size:13.5px;color:var(--ink-soft)}
.qrow:first-child{border-top:none}
.qk{font-family:'IBM Plex Mono',monospace;font-size:10.5px;font-weight:500;letter-spacing:0.14em;text-transform:uppercase;color:var(--grey);min-width:92px;padding-top:3px;flex-shrink:0}

/* ---------- mobile navigation ---------- */
.nav-toggle{display:none}
.nav-burger{display:none;font-family:'IBM Plex Mono',monospace;font-size:12px;font-weight:500;letter-spacing:0.12em;text-transform:uppercase;border:1px solid var(--ink);padding:9px 16px;cursor:pointer;user-select:none}
.nav-burger .x{display:none}
@media(max-width:920px){
  .nav-burger{display:block}
  .nav-toggle:checked ~ .nav-burger .o{display:none}
  .nav-toggle:checked ~ .nav-burger .x{display:inline}
  nav.menu{display:none;width:100%;flex-direction:column;gap:0;border-top:2px solid var(--ink);margin-top:12px;padding-top:4px}
  .nav-toggle:checked ~ nav.menu{display:flex}
  nav.menu a{width:100%;padding:13px 2px;border-bottom:1px solid var(--hair);font-size:14px}
  nav.menu a:hover{border-bottom-color:var(--hair)}
  nav.menu a.active{border-bottom:1px solid var(--hair);border-left:3px solid var(--red);padding-left:12px}
  nav.menu a.cta{margin:12px 0 6px;text-align:center;border-bottom:none}
  .brand-name{font-size:17px}
}
@media(max-width:920px){
  .subnav .wrap{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .subnav .wrap::-webkit-scrollbar{display:none}
  .subnav a,.subnav .sn-label{white-space:nowrap;flex-shrink:0}
}
@media(max-width:640px){
  .topbar .wrap div:first-child{display:none}
  .topbar{font-size:11.5px;text-align:center}
  .topbar .wrap{justify-content:center}
  .hero .wrap{padding-top:54px;padding-bottom:54px}
  .page-hero .wrap{padding-top:38px;padding-bottom:36px}
  section{padding:56px 0}
}

/* ---------- contact form ---------- */
.cform{margin-top:10px;border:1px solid var(--line);background:var(--white);padding:26px 28px 28px}
.cform label{display:block;font-family:'IBM Plex Mono',monospace;font-size:11px;font-weight:500;letter-spacing:0.14em;text-transform:uppercase;color:var(--grey);margin:18px 0 6px}
.cform label:first-of-type{margin-top:0}
.cform input[type=text],.cform input[type=email],.cform textarea{width:100%;border:1px solid var(--line);background:var(--paper);padding:11px 12px;font-family:'IBM Plex Sans',sans-serif;font-size:15px;color:var(--ink);border-radius:0}
.cform input:focus,.cform textarea:focus{outline:none;border-color:var(--ink)}
.cform button{margin-top:22px;cursor:pointer}