:root{
  --paper:#F5F7F7; --white:#FFFFFF; --ink:#0B1E2D; --ink-2:#34485A; --muted:#667784;
  --line:#DCE3E7; --line-2:#C9D3D9; --accent:#0B6E64; --accent-ink:#FFFFFF; --accent-soft:#E2F0ED;
  --signal:#B4531C; --night:#0B1E2D; --night-2:#132C3F; --night-line:#23405A; --night-text:#C7D3DC;
  --display:"Schibsted Grotesk","Helvetica Neue",Arial,sans-serif;
  --body:"Source Sans 3","Segoe UI",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --wrap:1160px; --gutter:clamp(20px,4vw,40px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--body);font-size:18px;line-height:1.6;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;height:auto}
a{color:var(--accent);text-underline-offset:3px}
a:hover{color:var(--ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
h1,h2,h3,h4{font-family:var(--display);color:var(--ink);margin:0;letter-spacing:-.02em;text-wrap:balance}
h1{font-size:clamp(40px,5.6vw,68px);line-height:1.02;font-weight:700}
h2{font-size:clamp(30px,3.4vw,42px);line-height:1.1;font-weight:700}
h3{font-size:22px;line-height:1.25;font-weight:600}
h4{font-size:18px;line-height:1.3;font-weight:600}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gutter)}
.label{font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-weight:500}
.lede{font-size:clamp(19px,1.6vw,21px);color:var(--ink-2);max-width:40ch;line-height:1.55}
.muted{color:var(--muted)}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:32px;height:68px}
.brand{font-family:var(--display);font-weight:700;font-size:19px;color:var(--ink);text-decoration:none;letter-spacing:-.01em;white-space:nowrap}
.brand span{color:var(--accent)}
.nav{display:flex;gap:28px;margin-left:auto}
.nav a{color:var(--ink-2);text-decoration:none;font-size:16px;font-weight:500}
.nav a:hover,.nav a[aria-current="page"]{color:var(--ink)}
.nav a[aria-current="page"]{box-shadow:inset 0 -2px 0 var(--accent)}
.header-cta{margin-left:8px}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line-2);border-radius:8px;padding:8px 12px;font:600 14px var(--body);color:var(--ink);cursor:pointer}
@media (max-width:900px){
  .site-header .nav,.site-header .header-cta{display:none}
  .menu-btn{display:block}
  .site-header.open .nav{display:flex!important;position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:0;background:var(--white);border-bottom:1px solid var(--line);padding:8px var(--gutter) 20px}
  .site-header.open .nav a{padding:12px 0;border-bottom:1px solid var(--line)}
}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font:600 16px/1 var(--body);padding:14px 22px;border-radius:8px;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background .15s,border-color .15s,color .15s}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:#085A52;color:#fff}
.btn-ghost{border-color:var(--line-2);color:var(--ink);background:var(--white)}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink)}
.btn-sm{padding:10px 16px;font-size:15px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* sections */
section{padding-block:clamp(64px,9vw,112px)}
.band{background:var(--paper);border-block:1px solid var(--line)}
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:24px 64px;align-items:end;margin-bottom:56px}
.sec-head .label{grid-column:1/-1}
.sec-head p{color:var(--ink-2);max-width:52ch}
@media (max-width:860px){.sec-head{grid-template-columns:1fr;margin-bottom:40px}}

/* hero */
.hero{padding-block:clamp(56px,8vw,96px) clamp(56px,7vw,88px)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:56px;align-items:center}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lede{margin-top:24px}
.hero .btn-row{margin-top:36px}
.hero-note{margin-top:28px;font-size:15px;color:var(--muted);display:flex;align-items:center;gap:10px}
.hero-note::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
@media (max-width:960px){.hero .wrap{grid-template-columns:1fr}}

/* chart figure */
.figure{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:22px 22px 16px}
.figure-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.figure-head h4{font-size:16px}
.tag{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 9px}
.legend{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:10px;font-size:14px;color:var(--ink-2)}
.legend i{display:inline-block;width:18px;height:0;border-top:2px solid;vertical-align:middle;margin-right:7px}
.fig-caption{font-size:13.5px;color:var(--muted);margin-top:10px}

/* numbered steps */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--ink)}
.step{padding:28px 28px 8px 0}
.step+.step{padding-left:28px;border-left:1px solid var(--line)}
.step .num{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.06em}
.step h3{margin:14px 0 10px}
.step p{color:var(--ink-2)}
@media (max-width:860px){.steps{grid-template-columns:1fr}.step,.step+.step{padding:24px 0;border-left:0;border-bottom:1px solid var(--line)}}

/* feature columns */
.cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:48px}
.cols.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.col h3{margin-bottom:10px}
.col p{color:var(--ink-2)}
.col .kicker{font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:14px;padding-bottom:14px;border-bottom:1px solid var(--line)}
@media (max-width:860px){.cols,.cols.two{grid-template-columns:1fr;gap:36px}}

/* modules */
.modules{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--white)}
.module{padding:28px;border-left:1px solid var(--line)}
.module:first-child{border-left:0;background:var(--accent-soft)}
.module .code{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--muted)}
.module h3{margin:8px 0 4px}
.module .role{font-weight:600;color:var(--ink-2);margin-bottom:14px}
.module ul{margin:0;padding:0;list-style:none}
.module li{padding:8px 0;border-top:1px solid var(--line);font-size:16px;color:var(--ink-2)}
.module:first-child li{border-top-color:#C5DFD9}
.start-tag{display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;background:var(--accent);color:#fff;border-radius:4px;padding:3px 7px;margin-bottom:12px}
@media (max-width:1000px){.modules{grid-template-columns:1fr 1fr}.module:nth-child(3){border-left:0}.module:nth-child(n+3){border-top:1px solid var(--line)}}
@media (max-width:620px){.modules{grid-template-columns:1fr}.module{border-left:0!important}.module+.module{border-top:1px solid var(--line)}}

/* principles list */
.rows{border-top:1px solid var(--ink)}
.row{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.4fr);gap:24px 64px;padding:28px 0;border-bottom:1px solid var(--line)}
.row p{color:var(--ink-2)}
@media (max-width:760px){.row{grid-template-columns:1fr;gap:8px}}

/* statement */
.statement{font-family:var(--display);font-size:clamp(26px,3vw,36px);line-height:1.25;letter-spacing:-.015em;max-width:30ch;font-weight:600}
.statement span{color:var(--accent)}

/* page hero */
.page-hero{padding-block:clamp(56px,8vw,96px) clamp(40px,5vw,64px);border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(38px,5vw,60px);max-width:18ch;margin-top:14px}
.page-hero .lede{margin-top:22px;max-width:52ch}

/* prose */
.prose{max-width:720px}
.prose h3{margin:44px 0 12px}
.prose p{color:var(--ink-2);margin-bottom:16px}
.prose blockquote{margin:0 0 20px;padding-left:22px;border-left:3px solid var(--accent);font-family:var(--display);font-size:21px;line-height:1.45;color:var(--ink)}

/* tiers */
.tiers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.tier{border:1px solid var(--line);border-radius:14px;padding:28px;background:var(--white)}
.tier h3{font-family:var(--mono);font-size:15px;letter-spacing:.1em;margin-bottom:12px}
.tier p{color:var(--ink-2)}
@media (max-width:860px){.tiers{grid-template-columns:1fr}}

/* faq */
.faq{border-top:1px solid var(--ink);max-width:860px}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;padding:18px 0;font-family:var(--display);font-weight:600;font-size:19px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--accent);font-size:20px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--ink-2);padding:0 0 20px;max-width:68ch}

/* architecture diagram */
.diagram{border:1px solid var(--line);border-radius:14px;background:var(--white);padding:20px;overflow-x:auto}
.diagram svg{min-width:640px;display:block;width:100%}

/* cta band */
.cta{background:var(--night);color:#fff;border-radius:18px;padding:clamp(36px,5vw,64px);display:grid;grid-template-columns:minmax(0,1.3fr) auto;gap:32px;align-items:center}
.cta h2{color:#fff}
.cta p{color:var(--night-text);margin-top:14px;max-width:52ch}
.cta .btn-ghost{background:transparent;color:#fff;border-color:var(--night-line)}
.cta .btn-ghost:hover{border-color:#fff}
@media (max-width:860px){.cta{grid-template-columns:1fr}}

/* forms */
.form-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:56px;align-items:start}
@media (max-width:900px){.form-grid{grid-template-columns:1fr;gap:36px}}
.form-card{border:1px solid var(--line);border-radius:14px;padding:28px;background:var(--white)}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:560px){.field-row{grid-template-columns:1fr}}
label{font-weight:600;font-size:15px;color:var(--ink)}
input,select,textarea{font:inherit;font-size:16px;color:var(--ink);background:var(--white);border:1px solid var(--line-2);border-radius:8px;padding:12px 14px;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}
textarea{min-height:120px;resize:vertical}
.form-status{margin-top:14px;font-size:15px;border-radius:8px;padding:12px 14px}
.form-status.ok{background:var(--accent-soft);color:#064E47}
.form-status.err{background:#FBEAE3;color:#8A3413}
.checklist{list-style:none;padding:0;margin:28px 0 0}
.checklist li{padding:14px 0;border-top:1px solid var(--line);color:var(--ink-2)}
.checklist strong{color:var(--ink);display:block}
.inline-form{display:flex;gap:12px;max-width:520px}
@media (max-width:560px){.inline-form{flex-direction:column}}

/* footer */
.site-footer{background:var(--night);color:var(--night-text);padding-block:64px 36px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.site-footer .brand{color:#fff}
.site-footer .brand span{color:#5FC2B4}
.site-footer p{font-size:15px;margin-top:14px;max-width:34ch}
.site-footer h5{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:#8DA3B3;margin:0 0 14px;font-weight:500}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:10px}
.site-footer a{color:#E4EBF0;text-decoration:none;font-size:15px}
.site-footer a:hover{color:#fff;text-decoration:underline}
.foot-bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--night-line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:14px}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.foot-grid{grid-template-columns:1fr}}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;z-index:50;background:#fff;padding:8px 12px;border-radius:6px}