html{scrollbar-gutter:stable}
:root{
  --bg:#E8ECE9; --surface:#F8FAF8; --ink:#1B2420; --muted:#56635D; --line:#CBD4CF;
  --accent:#2A8266; --accent-ink:#FFFFFF; --accent-soft:#D3E8E0;
  --scene:#D9E3E6; --ground:#B4B9B2; --grid-bg:#FFFFFF; --grid-line:#E0E6E2;
  --display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --body:"Barlow",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --bg:#0F1412; --surface:#161D1A; --ink:#E2E9E5; --muted:#8E9F97; --line:#27312D;
    --accent:#5CC3A2; --accent-ink:#0C1310; --accent-soft:#1D3A30;
    --scene:#172124; --ground:#393F3B; --grid-bg:#121916; --grid-line:#212B27;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#0F1412; --surface:#161D1A; --ink:#E2E9E5; --muted:#8E9F97; --line:#27312D;
  --accent:#5CC3A2; --accent-ink:#0C1310; --accent-soft:#1D3A30;
  --scene:#172124; --ground:#393F3B; --grid-bg:#121916; --grid-line:#212B27;
}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.55}
.page{max-width:1120px;margin:0 auto;padding-inline:20px;padding-block:28px 56px;display:flex;flex-direction:column;gap:18px}
@media (max-width:520px){.page{padding-inline:16px}}
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0}
h1,h2,h3{font-family:var(--display);font-weight:700;margin:0;text-wrap:balance;letter-spacing:.01em}
h1{font-size:clamp(40px,7vw,68px);line-height:.95;text-transform:uppercase}
h2{font-size:24px;line-height:1.1}
h3{font-size:16px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600}
p{margin:0}
.head{display:grid;grid-template-columns:1fr auto;gap:12px 32px;align-items:end}
.head .intro{display:flex;flex-direction:column;gap:10px}
.lede{max-width:60ch;color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(4,auto);gap:4px 22px;margin:0}
.stats div{display:flex;flex-direction:column}
.stats dt{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.stats dd{margin:0;font-family:var(--display);font-size:28px;font-weight:600;font-variant-numeric:tabular-nums;line-height:1.1}
@media (max-width:760px){.head{grid-template-columns:1fr}.stats{grid-template-columns:repeat(4,auto);justify-content:start}}
@media (max-width:420px){.stats{grid-template-columns:repeat(2,auto)}}

.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 14px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;box-shadow:0 6px 18px -14px rgba(0,0,0,.5)}
.stepper{display:flex;align-items:center;gap:8px;flex:1 1 320px;min-width:0}
.stepper input{flex:1;min-width:0;accent-color:var(--accent);height:28px}
.btn{font:600 15px/1 var(--body);border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:8px;height:34px;min-width:34px;padding:0 10px;cursor:pointer}
.btn:hover{border-color:var(--accent)}
.btn:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.readout{display:flex;align-items:baseline;gap:10px;min-width:0}
.readout .num{font-family:var(--display);font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}
.readout .num small{font-size:16px;color:var(--muted);font-weight:500}
.readout .ph{font-family:var(--mono);font-size:12px;color:var(--accent);text-transform:uppercase;letter-spacing:.06em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.toggle{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);cursor:pointer;white-space:nowrap}
.toggle input{accent-color:var(--accent);width:16px;height:16px}

.card{background:var(--surface);border:1px solid var(--line);border-radius:10px}
.top{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:18px}
@media (max-width:900px){.top{grid-template-columns:1fr}}
.viewer{overflow:hidden;display:flex;flex-direction:column}
#view{position:relative;aspect-ratio:16/10;width:100%;max-width:100%;background:var(--scene);touch-action:none}
#view canvas{display:block;width:100%;height:100%}
#view .fallback{position:absolute;inset:0;display:grid;place-items:center;padding:20px;text-align:center;color:var(--muted)}
.viewer-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:8px 12px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);flex-wrap:wrap}
.info{padding:18px 20px;display:flex;flex-direction:column;gap:12px}
.info p.text{max-width:52ch}
.mats{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.mats li{display:grid;grid-template-columns:18px 1fr auto;gap:10px;align-items:center;font-size:14px}
.sw{width:18px;height:18px;border-radius:3px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.18)}
.mats .n{font-family:var(--mono);font-size:13px;font-variant-numeric:tabular-nums;color:var(--muted)}
.code{font-family:var(--mono);font-size:11px;color:var(--muted);margin-left:6px}

.gridcard{padding:16px 18px;display:flex;flex-direction:column;gap:10px}
.gridhead{display:flex;justify-content:space-between;align-items:baseline;gap:8px 20px;flex-wrap:wrap}
#hover{font-family:var(--mono);font-size:12.5px;color:var(--muted);min-height:1.5em}
#hover b{color:var(--ink);font-weight:500}
.gridwrap{overflow-x:auto;max-width:100%}
#grid{display:block;cursor:crosshair;touch-action:manipulation}
.gridnote{font-size:13.5px;color:var(--muted);max-width:80ch}

.lower{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px}
@media (max-width:820px){.lower{grid-template-columns:1fr}}
.lower .card{padding:18px 20px;display:flex;flex-direction:column;gap:12px}
.phases{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.phases button{all:unset;box-sizing:border-box;width:100%;display:grid;grid-template-columns:64px 1fr;gap:12px;padding:8px 10px;border-radius:7px;cursor:pointer;align-items:baseline}
.phases button:hover{background:var(--bg)}
.phases button:focus-visible{outline:2px solid var(--accent)}
.phases button[aria-current="true"]{background:var(--accent-soft)}
.phases .rng{font-family:var(--mono);font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.phases .nm{font-weight:600}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{text-align:left;padding:7px 6px;border-bottom:1px solid var(--line)}
th{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:500}
td.r,th.r{text-align:right;font-family:var(--mono);font-variant-numeric:tabular-nums}
td .row{display:flex;align-items:center;gap:10px}
.tips{padding:18px 20px;display:flex;flex-direction:column;gap:10px}
.tips ul{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:6px;max-width:85ch}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

/* ---- Shared additions: navigation, links, gallery ---- */
.back{font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--accent);text-decoration:none;align-self:flex-start}
.back:hover{text-decoration:underline}
.foot-actions{display:flex;gap:8px;flex-wrap:wrap}
.error{padding:24px;display:flex;flex-direction:column;gap:10px}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:18px}
.bp-card{display:flex;flex-direction:column;overflow:hidden;text-decoration:none;color:inherit;transition:border-color .15s}
.bp-card:hover{border-color:var(--accent)}
.bp-card:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.bp-card canvas{display:block;width:100%;height:230px;background:var(--scene)}
.bp-card .body{padding:14px 16px;display:flex;flex-direction:column;gap:6px}
.bp-card .meta{font-family:var(--mono);font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.bp-card .open{font-weight:600;color:var(--accent);font-size:14px}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:-6px}
.theme-btn{font-size:13px;font-weight:500;height:30px;color:var(--muted)}

/* ---- Site header & footer (same as the rest of nexusnorth.net) ---- */
.site-wrap{max-width:1120px;margin:0 auto;padding-inline:20px}
@media (max-width:520px){.site-wrap{padding-inline:16px}}
.site-head{border-bottom:1px solid var(--line);background:var(--surface);line-height:1.6}
.site-head .site-wrap{display:flex;align-items:center;gap:8px 20px;padding-block:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--display);font-weight:700;font-size:22px;letter-spacing:.04em;text-transform:uppercase;white-space:nowrap}
.brand .mark{width:28px;height:28px;display:grid;place-items:center;background:#0B1413;color:#5CC3A2;border-radius:7px;font-size:15px}
.site-nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.site-nav a{text-decoration:none;font-weight:500;font-size:15px;color:var(--muted);padding:6px 11px;border-radius:8px;white-space:nowrap}
.site-nav a:hover{color:var(--ink);background:var(--bg)}
.site-nav a[aria-current="page"]{color:var(--ink);background:var(--accent-soft)}
.site-theme{font:500 13px/1 var(--body);border:1px solid var(--line);background:transparent;color:var(--muted);border-radius:8px;height:32px;padding:0 10px;cursor:pointer;white-space:nowrap}
.site-theme:hover{border-color:var(--accent);color:var(--ink)}
.site-theme:focus-visible,.site-nav a:focus-visible,.brand:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (max-width:720px){
  .site-head .site-wrap{gap:10px}
  .site-theme{margin-left:auto}
  .site-nav{order:3;width:100%;margin-left:0;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
  .site-nav::-webkit-scrollbar{display:none}
}
.site-foot{border-top:1px solid var(--line)}
.site-foot .site-wrap{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;justify-content:space-between;padding-block:22px;color:var(--muted);font-size:14px}
.site-foot nav{display:flex;gap:16px;flex-wrap:wrap}
.site-foot a{text-decoration:none;color:var(--muted)}
.site-foot a:hover{color:var(--ink)}

/* ---- Aurora hero (same as the rest of nexusnorth.net; the animation comes from /nn/site.js) ---- */
.hero{position:relative;overflow:hidden;background:#0B1413;color:#E8F1EC;border-radius:12px;isolation:isolate}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1;display:block}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(11,20,19,0) 30%,rgba(11,20,19,.85) 100%)}
.hero-inner{padding:clamp(32px,6vw,64px) clamp(20px,5vw,56px) clamp(28px,4vw,40px);display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px 40px}
.hero-text{display:flex;flex-direction:column;gap:14px;max-width:640px}
.hero .eyebrow{color:#9FB4AB}
.hero h1{font-size:clamp(48px,9vw,96px);line-height:.9;text-transform:uppercase;color:#E8F1EC}
.hero .tag{font-size:clamp(16px,2vw,19px);color:#9FB4AB;max-width:52ch}
.hero .stats dt{color:#9FB4AB}
.hero .stats dd{color:#E8F1EC}