/* Datum site. Layout: wide open white pages, deep blue as the one strong colour, grotesk type, ruled lists for detail. */
:root{
  --bg:#FFFFFF; --tint:#F4F6FA; --paper:#FFFFFF; --line:#E3E7EE; --line-strong:#C9D0DC;
  --ink:#0D1424; --mute:#4A5466; --faint:#8A93A3;
  --brand:#0B2A6F; --brand-hover:#14398F; --brand-soft:#E8EDF7; --accent:#2457D6;
  --ok:#17784A; --ok-soft:#E4F4EB; --bad:#B42318; --bad-soft:#FCEBEA;
  --display:"Schibsted Grotesk","Helvetica Neue",Arial,sans-serif;
  --sans:"Geist","Helvetica Neue",Arial,sans-serif;
  --code:"Geist Mono",ui-monospace,Menlo,Consolas,monospace;
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
a{color:inherit}
img,svg{max-width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.wrap{max-width:1160px;margin:0 auto;padding-left:max(32px,env(safe-area-inset-left,0px));padding-right:max(32px,env(safe-area-inset-right,0px))}
@media (max-width:640px){.wrap{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}}

/* top line */
.announce{background:var(--brand);color:#DCE4F5;font:500 13.5px/1.4 var(--sans);text-align:center;padding:10px 16px}
.announce a{text-decoration:none}
.announce b{color:#fff;font-weight:600}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:rgba(255,255,255,.92);backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.nav.scrolled{border-bottom-color:var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font:700 21px/1 var(--display);letter-spacing:-.02em;color:var(--ink)}
.logo svg{height:30px;width:auto;flex:none;display:block}
.menu{display:flex;align-items:center;gap:28px}
.menu a{font:500 15px/1 var(--sans);text-decoration:none;color:var(--mute)}
.menu a:hover,.menu a[aria-current="page"]{color:var(--brand)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 14.5px/1 var(--sans);text-decoration:none;padding:13px 18px;border-radius:8px;background:var(--brand);color:#fff !important;border:1px solid var(--brand);cursor:pointer;transition:background .15s,border-color .15s;white-space:nowrap}
.btn:hover{background:var(--brand-hover);border-color:var(--brand-hover)}
.btn.ghost{background:transparent;color:var(--ink) !important;border-color:var(--line-strong)}
.btn.ghost:hover{border-color:var(--brand);color:var(--brand) !important}
.btn.sm{padding:10px 14px;font-size:14px}
.toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;width:42px;height:42px;cursor:pointer;color:var(--ink)}
@media (max-width:920px){
  .toggle{display:grid;place-items:center}
  .menu{display:none;position:absolute;left:0;right:0;top:68px;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px max(16px,env(safe-area-inset-left,0px)) 16px}
  .menu.open{display:flex}
  .menu a{padding:15px 4px;border-bottom:1px solid var(--line);font-size:16px}
  .menu .btn{margin-top:14px;border-bottom:1px solid var(--brand)}
}

/* type */
.eyebrow{font:600 13px/1.4 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--brand);margin:0 0 14px}
h1,h2,h3{font-family:var(--display);font-weight:600;margin:0;text-wrap:balance;color:var(--ink)}
h1{font-size:clamp(40px,6.2vw,72px);line-height:1.04;letter-spacing:-.03em}
h2{font-size:clamp(30px,3.8vw,46px);line-height:1.1;letter-spacing:-.025em}
h3{font-size:21px;line-height:1.25;letter-spacing:-.01em}
.lead{font-size:19px;line-height:1.6;color:var(--mute);max-width:60ch;margin:20px 0 0}
p{margin:0}

/* sections */
section{padding:96px 0}
@media (max-width:640px){section{padding:64px 0}}
.hero{padding:88px 0 64px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap;margin-bottom:44px}
.head .lead{margin-top:0;max-width:48ch}
.rule{border-top:1px solid var(--line)}
.tinted{background:var(--tint)}

/* grids and cards */
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:980px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:680px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:28px;display:flex;flex-direction:column;gap:10px;min-width:0}
.card p{color:var(--mute)}
.card .more{margin-top:auto;padding-top:10px;font:600 14px/1 var(--sans);text-decoration:none;color:var(--brand)}
a.card{text-decoration:none;transition:border-color .15s}
a.card:hover{border-color:var(--brand)}
.label{font:600 12px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--brand)}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font:500 13px/1 var(--sans);padding:7px 10px;border-radius:6px;background:var(--tint);color:var(--mute)}

/* ruled feature list */
.features{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;border-top:1px solid var(--line)}
.feature{padding:28px 0;border-bottom:1px solid var(--line);display:grid;gap:8px}
.feature p{color:var(--mute)}
@media (max-width:760px){.features{grid-template-columns:1fr}}

/* product shot */
.shot{margin-top:56px;border-radius:16px;background:var(--tint);border:1px solid var(--line);padding:32px;overflow:hidden}
@media (max-width:820px){.shot{padding:10px;border-radius:12px}}
.app{background:#fff;border-radius:10px;box-shadow:0 1px 2px rgba(13,20,36,.06),0 24px 48px -24px rgba(13,20,36,.25);overflow:hidden;font-size:13px}
.bar{display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px solid var(--line);background:#FAFBFD}
.bar span{width:10px;height:10px;border-radius:50%;background:var(--line);flex:none}
.bar b{margin-left:10px;font:500 12px var(--sans);color:var(--mute);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.body{display:grid;grid-template-columns:170px 1fr 300px;min-height:400px}
.side{border-right:1px solid var(--line);padding:14px 10px;color:var(--mute)}
.side div{padding:7px 10px;border-radius:6px;margin-bottom:2px}
.side .on{background:var(--brand-soft);color:var(--brand);font-weight:600}
.side small{display:block;padding:14px 10px 6px;color:var(--faint);font:600 10.5px var(--sans);text-transform:uppercase;letter-spacing:.07em}
.main{padding:18px 20px;overflow-x:auto;min-width:0}
.main h4{margin:0 0 4px;font-size:15px;font-weight:600}
.main .meta{color:var(--faint);font-size:12px;margin-bottom:14px}
table.grid-t{width:100%;border-collapse:collapse}
table.grid-t th{font-weight:500;color:var(--faint);font-size:11.5px;text-align:left;padding:8px;border-bottom:1px solid var(--line)}
table.grid-t td{padding:9px 8px;border-bottom:1px solid #F0F2F6;white-space:nowrap}
table.grid-t .n{text-align:right;font-variant-numeric:tabular-nums}
table.grid-t tr.hl td{background:var(--brand-soft)}
.chip{font-size:11px;padding:2px 8px;border-radius:999px;background:var(--tint);color:var(--mute)}
.chip.warn{background:var(--bad-soft);color:var(--bad)}
.agent{border-left:1px solid var(--line);padding:16px;background:#FBFCFE;display:flex;flex-direction:column;gap:10px;min-width:0}
.agent .h{font:600 10.5px var(--sans);text-transform:uppercase;letter-spacing:.07em;color:var(--faint)}
.agent .task{font-size:12.5px;line-height:1.5}
.calls{font:11px/1.55 var(--code);color:var(--mute);display:flex;flex-direction:column;gap:5px}
.calls div{padding:6px 8px;border:1px solid var(--line);border-radius:6px;background:#fff;overflow-wrap:anywhere}
.calls em{font-style:normal;color:var(--accent)}
.reward{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;border-radius:8px;padding:10px 12px;background:var(--ok-soft);border:1px solid #BCE3CC}
.reward b{font:600 18px var(--code);color:var(--ok)}
.reward span{font-size:11.5px;color:#0E4B2E;max-width:22ch;line-height:1.35}
@media (max-width:1000px){.body{grid-template-columns:1fr 280px}.side{display:none}}
@media (max-width:700px){.body{grid-template-columns:1fr}.agent{border-left:0;border-top:1px solid var(--line)}.hide-s{display:none}}

/* stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats div{padding:28px 24px 28px 0}
.stats div+div{padding-left:24px;border-left:1px solid var(--line)}
.stats b{display:block;font:600 44px/1.05 var(--display);letter-spacing:-.03em;color:var(--brand)}
.stats span{display:block;margin-top:6px;font-size:15px;color:var(--mute)}
@media (max-width:760px){.stats{grid-template-columns:1fr}.stats div+div{padding-left:0;border-left:0;border-top:1px solid var(--line)}}

/* episode (frontier model example) */
.episode{display:grid;grid-template-columns:1.15fr 1fr;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--paper)}
.episode > div{padding:28px;min-width:0}
.episode .trace{border-right:1px solid var(--line)}
.episode h3{margin-bottom:6px}
.episode .meta{font-size:14px;color:var(--faint);margin-bottom:18px}
.steps-t{list-style:none;margin:0;padding:0;display:grid;gap:10px;counter-reset:t}
.steps-t li{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:start;font-size:14.5px}
.steps-t li::before{counter-increment:t;content:counter(t);font:500 12px/24px var(--code);color:var(--faint);text-align:center;border:1px solid var(--line);border-radius:6px;height:24px}
.steps-t code{font:12.5px var(--code);color:var(--accent);overflow-wrap:anywhere}
.checks-t{list-style:none;margin:0;padding:0;display:grid;gap:0}
.checks-t li{display:grid;grid-template-columns:22px 1fr auto;gap:10px;align-items:start;padding:12px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.checks-t .y{color:var(--ok);font-weight:700}
.checks-t .n{color:var(--bad);font-weight:700}
.checks-t em{font-style:normal;font:500 12px var(--code);color:var(--faint);white-space:nowrap}
.score{display:flex;justify-content:space-between;align-items:baseline;margin-top:18px}
.score b{font:600 34px/1 var(--display);color:var(--brand)}
.note{font-size:14px;color:var(--faint);margin-top:14px;max-width:70ch}
@media (max-width:860px){.episode{grid-template-columns:1fr}.episode .trace{border-right:0;border-bottom:1px solid var(--line)}}

/* steps */
.steps{display:grid;border-top:1px solid var(--line)}
.step{display:grid;grid-template-columns:64px 1fr 1.3fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--line);align-items:start}
.step .num{font:600 14px var(--display);color:var(--brand);padding-top:3px}
.step p{color:var(--mute)}
@media (max-width:760px){.step{grid-template-columns:1fr;gap:6px}}

/* tables */
.tbl{border:1px solid var(--line);border-radius:12px;background:var(--paper);overflow-x:auto}
.tbl table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.tbl th{text-align:left;font:600 12px var(--sans);letter-spacing:.07em;text-transform:uppercase;color:var(--faint);padding:14px 20px;border-bottom:1px solid var(--line)}
.tbl td{padding:16px 20px;border-bottom:1px solid #F0F2F6;vertical-align:top}
.tbl tr:last-child td{border-bottom:0}
.meter{height:6px;width:140px;background:var(--tint);border-radius:3px;position:relative;display:inline-block;vertical-align:middle;margin-right:12px}
.meter i{position:absolute;top:0;bottom:0;border-radius:3px;background:var(--brand)}
@media (max-width:700px){.meter{display:none}}

/* environment entries */
.env{border-top:1px solid var(--line);padding:36px 0;display:grid;grid-template-columns:1fr 1.1fr;gap:40px}
.env:last-child{border-bottom:1px solid var(--line)}
.env h3{font-size:28px;margin:8px 0 10px}
.env .desc{color:var(--mute);font-size:16.5px}
.env dl{margin:0;display:grid;gap:16px}
.env dt{font:600 12px var(--sans);letter-spacing:.07em;text-transform:uppercase;color:var(--faint);margin-bottom:4px}
.env dd{margin:0}
.env ul{margin:0;padding-left:18px;display:grid;gap:4px}
@media (max-width:860px){.env{grid-template-columns:1fr;gap:18px}}

/* closing band */
.band{background:var(--brand);color:#DCE4F5;border-radius:16px;padding:48px;display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.band h2{color:#fff}
.band p{color:#C3CFEA;margin-top:10px;max-width:52ch}
.band .btn{background:#fff;color:var(--brand) !important;border-color:#fff}
.band .btn:hover{background:var(--brand-soft);border-color:var(--brand-soft)}
@media (max-width:640px){.band{padding:32px 22px}}

/* roles */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.filters button{font:500 14px var(--sans);padding:9px 14px;border-radius:999px;border:1px solid var(--line-strong);background:#fff;color:var(--ink);cursor:pointer}
.filters button[aria-pressed="true"]{background:var(--brand);border-color:var(--brand);color:#fff}
.search{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:24px}
.search input{flex:1 1 280px;font:16px var(--sans);padding:13px 14px;border:1px solid var(--line-strong);border-radius:8px;min-width:0}
.search span{font-size:14px;color:var(--faint)}
.cat{margin-top:32px}
.cat h3{font-size:22px;margin-bottom:6px}
.cat > p{color:var(--mute);margin-bottom:10px}
.roles{border-top:1px solid var(--line)}
.role{display:grid;grid-template-columns:1fr auto auto;gap:20px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line);text-decoration:none}
.role b{font:500 17px var(--sans)}
.role span{font-size:14px;color:var(--faint);white-space:nowrap}
.role i{font-style:normal;font:600 14px var(--sans);color:var(--brand)}
.role:hover b{color:var(--brand)}
.empty{color:var(--mute);padding:20px 0}
@media (max-width:560px){.role{grid-template-columns:1fr auto}.role span{display:none}}

/* domain chips */
.cloud{display:flex;flex-wrap:wrap;gap:8px}
.cloud span{font-size:15px;padding:9px 14px;border-radius:999px;background:var(--paper);border:1px solid var(--line)}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:start}
.contact dl{margin:32px 0 0;display:grid;gap:20px}
.contact dt{font:600 12px var(--sans);letter-spacing:.07em;text-transform:uppercase;color:var(--faint);margin-bottom:4px}
.contact dd{margin:0;font-size:17px}
.contact dd a{text-decoration:none;border-bottom:1px solid var(--line-strong)}
.contact dd a:hover{border-color:var(--brand);color:var(--brand)}
form.f{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:28px;display:grid;gap:16px}
.f .two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.f label{display:grid;gap:6px;font:600 13px var(--sans);color:var(--mute)}
.f input,.f textarea{font:15px var(--sans);color:var(--ink);padding:12px 13px;border:1px solid var(--line-strong);border-radius:8px;background:#fff;width:100%}
.f input:focus,.f textarea:focus{outline:2px solid var(--accent);outline-offset:0;border-color:transparent}
.f textarea{min-height:120px;resize:vertical}
.f fieldset{border:0;padding:0;margin:0}
.f legend{font:600 13px var(--sans);color:var(--mute);margin-bottom:10px}
.checks{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.checks label{display:flex;gap:10px;align-items:center;font:500 15px var(--sans);color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:10px 12px;cursor:pointer}
.checks input{width:auto;accent-color:var(--brand)}
.f small{color:var(--faint);font-size:13px}
@media (max-width:860px){.contact{grid-template-columns:1fr;gap:32px}}
@media (max-width:560px){.f .two,.checks{grid-template-columns:1fr}}

/* footer */
footer{border-top:1px solid var(--line);padding:56px 0 64px;font-size:15px;color:var(--mute);margin-top:32px}
footer .wrap{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.5fr;gap:32px}
footer h5{font:600 12px var(--sans);letter-spacing:.07em;text-transform:uppercase;color:var(--ink);margin:0 0 14px}
footer a{display:block;text-decoration:none;margin-bottom:9px}
footer a:hover{color:var(--brand)}
footer p{margin:12px 0 0}
@media (max-width:760px){footer .wrap{grid-template-columns:1fr 1fr}}

/* sections are visible at rest; a light lift plays as they enter the screen */
@media (prefers-reduced-motion:no-preference){.reveal.in{animation:lift .6s ease both}}
@keyframes lift{from{transform:translateY(8px)}to{transform:none}}