:root{--bg:#030F0D;--ink:#E9F2EF;--soft:#C4DAD4;--mute:#8FD9CB;--teal:#46E0C8;--rule:rgba(143,217,203,0.18)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Familjen Grotesk',system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--teal)}a:hover{color:var(--ink)}
img{max-width:100%}
.page{max-width:1280px;margin:0 auto;overflow:hidden}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px}

/* header */
header.site{position:sticky;top:0;z-index:50;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:22px 72px;max-width:1280px;margin:0 auto;background:rgba(3,15,13,0.88);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-weight:700;font-size:26px;letter-spacing:-.8px}
.brand i{display:inline-block;width:6px;height:6px;margin-left:2px;background:var(--teal);box-shadow:0 0 4px rgba(70,224,200,.6)}
header.site nav{display:flex;gap:26px;align-items:center;font-size:16px}
header.site nav a{color:var(--ink);text-decoration:none}
header.site nav a:hover,header.site nav a[aria-current]{color:var(--teal)}
header.site nav a.cta{color:var(--bg);background:var(--teal);padding:11px 18px;font-weight:600;box-shadow:0 0 11px rgba(70,224,200,.27)}
header.site nav a.cta:hover{color:var(--bg);background:var(--ink)}
.menu{display:none;background:none;border:1px solid rgba(143,217,203,.4);color:var(--ink);font:inherit;font-size:15px;padding:8px 14px;cursor:pointer}

/* footer */
footer.site{max-width:1280px;margin:0 auto;padding:56px 72px 48px;border-top:1px solid var(--rule);color:var(--mute);font-size:15px}
.f-top{display:flex;justify-content:space-between;gap:48px;flex-wrap:wrap}
.f-brand p{margin:14px 0 0;line-height:1.6;max-width:30em}
.f-nav{display:grid;grid-template-columns:repeat(2,auto);gap:10px 40px;align-content:start}
.f-nav a{color:var(--ink);text-decoration:none}.f-nav a:hover{color:var(--teal)}
.fine{margin:40px 0 0;font-size:13px;line-height:1.6;max-width:60em}

.hero .creds{max-width:540px;line-height:1.7}
.page [style*="font-size: 112px"]{font-size:80px!important}
/* anatomy interactive */
.lab{background:transparent;border:1px solid transparent}
.lab.on{background:rgba(70,224,200,.10);border-color:rgba(70,224,200,.6)}
.lab:hover{border-color:rgba(70,224,200,.35)}

/* forms */
input,select,textarea{color-scheme:dark}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--teal)!important;box-shadow:0 0 0 1px var(--teal)}
button[type=submit]:hover{background:var(--ink)!important}
#formStatus.ok{color:var(--teal)}#formStatus.err{color:#F2B84B}

/* scorecard */
.sc-wrap{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:56px;padding:40px 72px 100px;align-items:start}
.sc-q{border:0;margin:0;padding:22px 0;border-top:1px solid var(--rule)}
.sc-q legend{float:left;width:100%;padding:0;font-size:19px;line-height:1.45;margin-bottom:14px}
.sc-q legend span{color:var(--mute);font-family:'IBM Plex Mono',monospace;font-size:13px;margin-right:10px}
.sc-dim{margin:44px 0 0;font-size:15px;color:var(--teal)}
.opts{clear:both;display:flex;flex-wrap:wrap;gap:10px}
.opts input{position:absolute;opacity:0;width:1px;height:1px}
.opts label{border:1px solid rgba(143,217,203,.35);padding:10px 16px;cursor:pointer;font-size:16px;color:var(--soft)}
.opts input:checked+label{border-color:var(--teal);background:rgba(70,224,200,.12);color:var(--ink)}
.opts input:focus-visible+label{outline:2px solid var(--teal);outline-offset:2px}
.sc-res{position:sticky;top:100px;border:1px solid rgba(70,224,200,.45);background:rgba(70,224,200,.04);padding:28px;display:flex;flex-direction:column;gap:18px}
.sc-res .lvl{font-size:34px;font-weight:600;letter-spacing:-1px;color:var(--teal);line-height:1.05}
.sc-res .num{font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--mute)}
.bars{display:flex;flex-direction:column;gap:9px}
.bar{display:grid;grid-template-columns:140px 1fr 28px;gap:10px;align-items:center;font-size:14px;color:var(--soft)}
.bar .t{height:6px;background:rgba(143,217,203,.15)}.bar .f{display:block;height:100%;background:var(--teal);box-shadow:0 0 6px rgba(70,224,200,.6);transition:width .3s}
.prio{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:12px;font-size:15px;line-height:1.5;color:var(--soft)}
.prio b{color:var(--ink);font-weight:600}
.btn{display:inline-block;color:var(--bg)!important;background:var(--teal);padding:16px 22px;font-weight:600;font-size:17px;text-decoration:none;border:0;cursor:pointer;font-family:inherit;box-shadow:0 0 16px rgba(70,224,200,.3);text-align:center}
.btn:hover{background:var(--ink)}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* books */
.books{display:grid;grid-template-columns:1fr 1fr;gap:72px;padding:20px 72px 110px}
.book{display:flex;gap:32px;align-items:flex-start}
.book svg{flex:none;width:200px;height:auto;box-shadow:0 0 30px rgba(70,224,200,.15)}

/* mobile */
@media (max-width:900px){
  header.site{padding:14px 20px}
  .brand{font-size:22px}
  .menu{display:block}
  header.site nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;background:var(--bg);border-bottom:1px solid var(--rule);padding:8px 20px 20px}
  header.site nav.open{display:flex}
  header.site nav a{padding:12px 0;font-size:18px;width:100%}
  header.site nav a.cta{margin-top:10px;text-align:center}
  footer.site{padding:44px 20px 40px}
  .page section,.page>ol{padding-left:20px!important;padding-right:20px!important}
  .page h1{font-size:44px!important;letter-spacing:-1.2px!important}
  .page h2{font-size:32px!important;letter-spacing:-.8px!important}
  .page .row{flex-direction:column!important;gap:20px!important;align-items:stretch!important}
  .page [style*="width: 400px"],.page [style*="width: 420px"],.page [style*="width: 340px"],.page [style*="width: 360px"],.page [style*="width: 600px"],.page [style*="width: 482px"],.page [style*="width: 252px"],.page [style*="width: 760px"]{width:auto!important}
  .page [style*="width: 60px"]{width:auto!important}
  .page [style*="font-size: 112px"]{font-size:56px!important}
  .page [style*="font-size: 96px"]{font-size:56px!important;width:auto!important}
  .page [style*="font-size: 56px"]{font-size:44px!important}
  .page [style*="font-size: 34px"]{font-size:24px!important}
  .page [style*="width: 33.33%"]{width:50%!important}
  .page img[width="400"]{width:100%!important;height:auto!important;max-width:360px}
  .page [aria-hidden="true"][style*="radial-gradient"]{display:none}
  /* hero */
  .hero{height:auto!important;padding-bottom:40px}
  .hero>svg{opacity:.28;left:-480px!important}
  .hero>div{padding:40px 20px 0!important;width:auto!important}
  .hero .creds{position:static!important;margin:40px 20px 0!important;line-height:1.7}
  /* anatomy */
  .anat{height:auto!important;padding-bottom:40px}
  .anat>div:first-child{padding-top:56px!important}
  .anat-svg{position:relative!important;width:100%!important;height:auto!important;display:block;margin:10px 0}
  .anat .leaders,.anat .hot,.anat .plab{display:none}
  .anat .lab{position:static!important;width:auto!important;margin:6px 20px}
  .anat .panel{position:static!important;margin:20px!important;flex-direction:column!important;align-items:flex-start!important}
  .lis-art{width:100%;height:auto}
  .sc-wrap{grid-template-columns:1fr;padding:20px 20px 80px;gap:40px}
  .sc-res{position:static}
  .books{grid-template-columns:1fr;padding:10px 20px 80px;gap:56px}
  .book{flex-direction:column}
}