/* Orion GeoAI Reference — shared styles for every reference and blog page.
 * Brand tokens, base type and the cosmos background come from
 * ../home/site.css; this file maps the reference's own tokens onto them.
 * The reference is always dark, like the rest of the site. */
:root{
  color-scheme:dark;
  --paper:var(--bg);
  --surface:rgba(255,255,255,.055);
  --sunk:rgba(255,255,255,.08);
  --ink:#F4EEFF;
  --ink-2:#CFC3E8;
  --ink-3:#A99CC6;
  --rule:rgba(255,255,255,.13);
  --rule-2:rgba(255,255,255,.08);
  --canal:#C8B4FF;
  --canal-soft:rgba(200,180,255,.14);
  --dyke:#9FE3C0;
  --dyke-soft:rgba(111,195,154,.13);
  --target:#E0A450;
  --target-soft:rgba(224,164,80,.14);
  --constraint:#9DBBF0;
  --constraint-soft:rgba(127,169,224,.14);
  --partner:#6FC39A;
  --partner-soft:rgba(111,195,154,.14);
  --stop:#FF9BB8;
  --stop-soft:rgba(255,120,160,.12);
  --code-bg:rgba(255,255,255,.08);
  --shadow:0 18px 50px -24px rgba(0,0,0,.8);
  --glass-blur:blur(16px);
  --f-display:"Bricolage Grotesque",system-ui,sans-serif;
  --f-body:"Bricolage Grotesque",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --side:272px;
}

*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16.5px;line-height:1.65;-webkit-font-smoothing:antialiased}
::selection{background:rgba(200,180,255,.35)}
a{color:#E3CCFF;text-underline-offset:3px;text-decoration-thickness:1px;text-decoration-color:rgba(227,204,255,.45)}
a:hover{color:#fff}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--canal);outline-offset:2px;border-radius:3px}
code,kbd,.mono{font-family:var(--f-mono);font-size:.88em}
code{background:var(--code-bg);padding:.08em .35em;border-radius:4px}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}

/* ── Top bar ───────────────────────────────────────────── */
.topbar{position:sticky;top:calc(env(safe-area-inset-top,0px) + 12px);z-index:30;display:flex;align-items:center;gap:16px;
  max-width:1376px;margin:12px auto 0;padding:8px 10px 8px 18px;border-radius:999px;
  background:rgba(16,8,34,.72);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--rule);box-shadow:var(--shadow)}
@media (max-width:1420px){.topbar{margin-left:12px;margin-right:12px}}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:none}
.brand svg{width:28px;height:28px;flex:none}
.brand b{font-family:var(--f-display);font-weight:600;font-size:18px;letter-spacing:-.01em;white-space:nowrap}
.brand span{font-size:13px;color:var(--ink-3);padding-left:10px;border-left:1px solid var(--rule)}
.search{flex:1;max-width:460px;margin-left:auto;position:relative}
.search input{width:100%;font:inherit;font-size:14px;padding:9px 14px 9px 36px;border:1px solid var(--rule);border-radius:999px;background:rgba(255,255,255,.06);color:var(--ink)}
.search input::placeholder{color:var(--ink-3)}
.search svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--ink-3)}
.results{position:absolute;left:0;right:0;top:calc(100% + 8px);background:rgba(20,10,40,.96);border:1px solid var(--rule);border-radius:10px;box-shadow:var(--shadow);max-height:60vh;overflow:auto;padding:6px}
.results a{display:block;padding:8px 10px;border-radius:7px;text-decoration:none;color:var(--ink)}
.results a:hover,.results a.on{background:var(--sunk)}
.results a small{display:block;color:var(--ink-3);font-size:12.5px;line-height:1.4}
.results .none{padding:10px;color:var(--ink-3);font-size:14px}
.toplinks{display:flex;gap:2px}
.toplinks a{font-size:14px;color:var(--ink-2);text-decoration:none;padding:8px 12px;border-radius:999px;white-space:nowrap}
.toplinks a:hover{background:var(--sunk);color:var(--ink)}
@media (max-width:1100px){.toplinks{display:none}}
.menu-btn{display:none;font:inherit;font-size:14px;border:1px solid var(--rule);background:var(--surface);color:var(--ink);border-radius:999px;padding:8px 14px;cursor:pointer}

/* ── Shell ─────────────────────────────────────────────── */
.shell{display:grid;grid-template-columns:var(--side) minmax(0,1fr);max-width:1400px;margin:0 auto}
.side{position:sticky;top:calc(env(safe-area-inset-top,0px) + 84px);align-self:start;height:calc(100vh - 100px);overflow:auto;
  margin:24px 0 0 12px;padding:20px 12px 30px 14px;border-radius:22px;background:rgba(255,255,255,.035);border:1px solid var(--rule-2);
  -webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.2) transparent}
.side h4{font-family:var(--f-display);font-weight:500;font-size:13px;color:var(--canal);margin:22px 8px 6px}
.side h4:first-child{margin-top:0}
.side a{display:flex;gap:8px;align-items:baseline;padding:6px 10px;border-radius:12px;color:var(--ink-2);text-decoration:none;font-size:14.5px;line-height:1.35}
.side a .n{font-family:var(--f-mono);font-size:11px;color:var(--ink-3);min-width:1.6em}
.side a:hover{background:var(--sunk);color:var(--ink)}
.side a.on{background:var(--canal-soft);color:#fff;font-weight:600;box-shadow:inset 0 0 0 1px rgba(200,180,255,.3)}
.side a.on .n{color:var(--canal)}
.main{padding-block:34px 90px;padding-inline:clamp(16px,4vw,56px);min-width:0}
.page{max-width:860px}

/* ── Type ─────────────────────────────────────────────── */
.eyebrow{display:inline-block;font-family:var(--f-display);font-weight:400;font-size:13px;color:#E3CCFF;margin:0 0 14px;padding:6px 13px;border-radius:999px;background:rgba(255,255,255,.055);border:1px solid var(--rule)}
h1,h2,h3{font-family:var(--f-display);text-wrap:balance;line-height:1.15;color:var(--ink)}
h1{font-size:clamp(32px,4.4vw,50px);font-weight:600;margin:0 0 16px;letter-spacing:-.035em;line-height:1.05}
h2{font-size:26px;font-weight:600;letter-spacing:-.02em;margin:48px 0 10px;padding-top:18px;border-top:1px solid var(--rule)}
h3{font-size:18.5px;font-weight:600;letter-spacing:-.01em;margin:28px 0 6px}
.lede{font-size:18.5px;line-height:1.6;font-weight:300;color:var(--ink-2);max-width:62ch;margin:0 0 20px}
.page p,.page li{max-width:68ch}
.page ul,.page ol{padding-left:1.25em}
.page li{margin:4px 0}
.muted{color:var(--ink-3)}
.small{font-size:14px}

/* ── Components ─────────────────────────────────────── */
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:22px 0 8px}
.facts div{background:var(--surface);border:1px solid var(--rule);border-radius:18px;padding:16px 18px;-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur)}
.facts b{display:block;font-family:var(--f-display);font-weight:600;font-size:28px;letter-spacing:-.03em;line-height:1.1;font-variant-numeric:tabular-nums;background:linear-gradient(135deg,#F3D8FF,#C8B4FF 50%,#A9C4FF);-webkit-background-clip:text;background-clip:text;color:transparent}
.facts span{font-size:13.5px;color:var(--ink-2);line-height:1.35;display:block;margin-top:4px}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin:18px 0}
.tile{display:block;background:var(--surface);border:1px solid var(--rule);border-radius:18px;padding:18px 18px 16px;text-decoration:none;color:var(--ink);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);transition:border-color .25s,transform .25s,background .25s}
a.tile:hover{border-color:rgba(200,180,255,.45);background:rgba(255,255,255,.085);transform:translateY(-2px)}
.tile h3{margin:0 0 4px;font-size:16.5px}
.tile p{margin:0;color:var(--ink-2);font-size:14.5px;line-height:1.5}
.tile .ico{width:34px;height:34px;margin-bottom:10px;color:var(--canal)}

.ask{margin:14px 0;display:grid;gap:8px}
.ask q{display:block;quotes:none;background:var(--surface);border:1px solid var(--rule);border-left:3px solid var(--canal);border-radius:12px;padding:10px 14px;font-size:15px}
.ask q::before{content:"“";color:var(--ink-3)}
.ask q::after{content:"”";color:var(--ink-3)}
.ask q[lang="nl"]{border-left-color:var(--dyke)}
.ask q small{display:block;color:var(--ink-3);font-size:12.5px;margin-top:2px}

.callout{border:1px solid var(--rule);background:var(--surface);border-radius:18px;-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);padding:14px 16px;margin:18px 0;display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start}
.callout svg{width:22px;height:22px;margin-top:2px}
.callout p{margin:0}
.callout.trust{border-color:color-mix(in srgb,var(--dyke) 40%,var(--rule));background:var(--dyke-soft)}
.callout.trust svg{color:var(--dyke)}
.callout.limit{border-color:color-mix(in srgb,var(--target) 40%,var(--rule));background:var(--target-soft)}
.callout.limit svg{color:var(--target)}
.callout.tech{background:var(--sunk)}
.callout.tech svg{color:var(--ink-2)}
.callout b.k{display:block;font-family:var(--f-display);font-weight:600;font-size:13px;margin-bottom:2px;color:var(--ink-2)}

.tbl{overflow-x:auto;margin:16px 0;border:1px solid var(--rule);border-radius:16px;background:var(--surface);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur)}
table{border-collapse:collapse;width:100%;font-size:14.5px}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--rule-2);vertical-align:top}
th{font-family:var(--f-display);font-weight:600;font-size:13px;color:var(--ink-2);background:var(--sunk)}
tr:last-child td{border-bottom:0}
td.num{font-variant-numeric:tabular-nums;text-align:right}

.pill{display:inline-block;font-family:var(--f-display);font-weight:500;font-size:12px;padding:2px 9px;border-radius:99px;border:1px solid var(--rule);color:var(--ink-2);background:var(--sunk);white-space:nowrap}
.pill.live{color:var(--dyke);border-color:color-mix(in srgb,var(--dyke) 40%,transparent);background:var(--dyke-soft)}
.pill.limited{color:var(--target);border-color:color-mix(in srgb,var(--target) 40%,transparent);background:var(--target-soft)}
.pill.planned{color:var(--canal);border-color:color-mix(in srgb,var(--canal) 40%,transparent);background:var(--canal-soft)}
.role{font-weight:600;padding:0 .3em;border-radius:4px}
.role.t{color:var(--target);background:var(--target-soft)}
.role.c{color:var(--constraint);background:var(--constraint-soft)}
.role.p{color:var(--partner);background:var(--partner-soft)}

figure{margin:22px 0;background:var(--surface);border:1px solid var(--rule);border-radius:20px;padding:12px 12px 10px;-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur)}
figure .fig{overflow-x:auto}
figure img{display:block;width:100%;height:auto;min-width:560px;border-radius:12px;background:var(--fig-paper)}
figure.narrow img{min-width:0;max-width:560px;margin:0 auto}
figcaption{font-size:13.5px;color:var(--ink-2);margin:10px 4px 2px;line-height:1.5}
figcaption b{color:var(--ink)}

.op{background:var(--surface);border:1px solid var(--rule);border-radius:20px;-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);padding:18px 18px 8px;margin:16px 0;scroll-margin-top:80px}
.op header{display:flex;gap:14px;align-items:flex-start}
.op header svg{width:52px;height:52px;flex:none;color:var(--canal)}
.op h3{margin:2px 0 2px}
.op .what{margin:0;color:var(--ink-2)}
.op dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px;margin:14px 0 8px;font-size:14.5px}
.op dt{font-family:var(--f-display);font-weight:600;font-size:13px;color:var(--ink-3);padding-top:2px}
.op dd{margin:0}
@media (max-width:560px){.op dl{grid-template-columns:1fr}.op dt{padding-top:6px}}

.steps{counter-reset:s;list-style:none;padding:0!important;margin:16px 0}
.steps li{counter-increment:s;position:relative;padding:2px 0 12px 44px;max-width:none}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#F3D8FF,#A9C4FF);color:#170A2E;font-family:var(--f-display);font-weight:600;font-size:14px;display:grid;place-items:center;box-shadow:0 0 18px -2px rgba(200,160,255,.7)}
.steps li b{display:block}

.fx-filter{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.fx-filter button{font:inherit;font-size:13.5px;border:1px solid var(--rule);background:var(--surface);color:var(--ink-2);border-radius:99px;padding:6px 13px;cursor:pointer}
.fx-filter button.on{background:linear-gradient(135deg,#F3D8FF,#A9C4FF);color:#170A2E;border-color:transparent}
.fx-count{font-size:13.5px;color:var(--ink-3);margin-left:auto;align-self:center}

.pager{display:flex;justify-content:space-between;gap:12px;margin-top:56px;padding-top:18px;border-top:1px solid var(--rule)}
.pager a{display:block;text-decoration:none;border:1px solid var(--rule);border-radius:16px;padding:12px 16px;background:var(--surface);max-width:48%;transition:border-color .25s,background .25s}
.pager a:hover{border-color:rgba(200,180,255,.45);background:rgba(255,255,255,.085)}
.pager a small{display:block;font-family:var(--f-display);font-size:13px;color:var(--ink-3)}
.pager a span{color:var(--ink);font-weight:600}
.pager .next{margin-left:auto;text-align:right}

.hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:28px;align-items:center;margin-bottom:10px}
.hero img{display:block;width:100%;height:auto;border-radius:18px;background:var(--fig-paper);padding:8px}
@media (max-width:860px){.hero{grid-template-columns:1fr}}
.stamp{display:inline-flex;gap:8px;align-items:center;font-family:var(--f-mono);font-size:12px;color:var(--ink-3);border:1px dashed var(--rule);border-radius:999px;padding:4px 10px}
.edit-note{font-size:13px;color:var(--ink-3);margin-top:40px}

/* ── Narrow screens ─────────────────────────────────── */
@media (max-width:900px){
  .shell{grid-template-columns:minmax(0,1fr)}
  .side{position:fixed;inset:76px 12px 12px 12px;z-index:25;margin:0;background:rgba(16,8,34,.96);height:auto;transform:translateX(-110%);transition:transform .25s}
  .side.open{transform:none}
  .menu-btn{display:inline-block}
  .brand span{display:none}
  .topbar{gap:10px;padding:8px 10px 8px 14px}
}

/* Diagrams and blog covers are drawn in the same Nebula palette (their own
 * --paper is #120A26), so their frame matches it. */
:root{--fig-paper:#120A26}