:root{
  --bg:#f4f7fb; --panel:#fff; --ink:#122033; --muted:#5a6b80; --line:#dbe3ee;
  --accent:#2F5FE5; --accent2:#12b5a6; --chip:#eef3fa;
  --night:#070d1a; --night2:#0f1c36; --glass:rgba(16,26,48,.72); --glass-line:rgba(255,255,255,.12);
  --w-ink:#e8eefb; --w-muted:#9fb0cc;
}
@media (prefers-color-scheme: dark){
  :root{--bg:#0a111d; --panel:#111b2c; --ink:#e8eefb; --muted:#9fb0cc; --line:#1f2e46; --chip:#16233a}
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:inherit}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- hub ---------- */
.hero{position:relative;overflow:hidden;color:var(--w-ink);background:radial-gradient(1200px 500px at 85% -10%,#2a4fb8 0,transparent 60%),radial-gradient(800px 400px at 0% 110%,#0e7c78 0,transparent 55%),linear-gradient(180deg,var(--night2),var(--night))}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px clamp(16px,4vw,48px);max-width:1180px;margin:0 auto}
.brand{display:flex;align-items:center;gap:10px;font-weight:650;text-decoration:none}
.logo{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent2))}
.nav a.pill{font-size:14px;text-decoration:none;padding:8px 14px;border-radius:999px;border:1px solid var(--glass-line);background:rgba(255,255,255,.06)}
.nav a.pill:hover{background:rgba(255,255,255,.14)}
.hero-in{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:24px;align-items:center;max-width:1180px;margin:0 auto;padding:28px clamp(16px,4vw,48px) 56px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.04em;color:#9fe8e0;border:1px solid rgba(159,232,224,.35);padding:4px 12px;border-radius:999px;margin-bottom:14px}
h1{font-size:clamp(32px,5.4vw,56px);line-height:1.05;margin:0 0 14px;letter-spacing:-.02em}
h1 em{font-style:normal;background:linear-gradient(90deg,#8fb0ff,#7ff0e1);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(16px,2vw,19px);color:var(--w-muted);max-width:34em;margin:0 0 24px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{font:inherit;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:12px;border:1px solid var(--glass-line);color:var(--w-ink);background:rgba(255,255,255,.07);cursor:pointer}
.btn.primary{background:linear-gradient(135deg,var(--accent),#4a7cff);border-color:transparent;color:#fff;box-shadow:0 8px 24px rgba(47,95,229,.4)}
.btn:hover{filter:brightness(1.12)}
.hero-art{display:flex;justify-content:center}
.hero-art svg{width:min(100%,380px);height:auto;filter:drop-shadow(0 20px 40px rgba(0,0,0,.45))}
.trust{display:flex;gap:18px;flex-wrap:wrap;margin-top:26px;font-size:14px;color:var(--w-muted)}
.trust span{display:flex;align-items:center;gap:6px}
.trust i{width:8px;height:8px;border-radius:50%;background:var(--accent2)}

.wrap{max-width:1180px;margin:0 auto;padding:40px clamp(16px,4vw,48px) 60px}
.wrap h2{font-size:clamp(22px,3vw,30px);margin:0 0 6px;letter-spacing:-.01em}
.wrap .sub{color:var(--muted);margin:0 0 24px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.card{position:relative;display:flex;flex-direction:column;border-radius:20px;overflow:hidden;background:var(--panel);border:1px solid var(--line);text-decoration:none;transition:transform .18s,box-shadow .18s,border-color .18s}
.card.live:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(18,32,51,.18);border-color:var(--accent)}
.thumb{height:150px;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#12234a,#0a1224)}
.thumb svg{height:120px;width:auto}
.card .body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.card h3{margin:0;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:14.5px}
.tag{align-self:flex-start;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--chip);color:var(--muted);margin-top:auto}
.tag.live{background:color-mix(in srgb,var(--accent2) 18%,transparent);color:#0b8a7e}
.card.soon{opacity:.78}
.card.soon .thumb{filter:saturate(.5)}
.note{margin-top:34px;padding:16px 18px;border-radius:14px;background:var(--chip);color:var(--muted);font-size:14px}
footer{padding:24px;text-align:center;color:var(--muted);font-size:13px}

/* ---------- tool page (always a dark studio) ---------- */
body.studio{background:var(--night);color:var(--w-ink);height:100vh;overflow:hidden;display:flex;flex-direction:column}
.bar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 16px;border-bottom:1px solid var(--glass-line);background:rgba(7,13,26,.9);flex:none}
.bar .left{display:flex;align-items:center;gap:14px;min-width:0}
.bar a.back{font-size:14px;text-decoration:none;color:var(--w-muted)}
.bar a.back:hover{color:#fff}
.bar .ttl{font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.edu{font-size:12.5px;color:var(--w-muted);border:1px solid var(--glass-line);padding:4px 10px;border-radius:999px;white-space:nowrap}
.main{flex:1;display:grid;grid-template-columns:minmax(0,1fr) 340px;min-height:0}
.stage{position:relative;min-height:0;background:radial-gradient(900px 600px at 50% 40%,#1c3466 0,#0d1a38 45%,#060b17 100%);overflow:hidden}
#gl{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none;cursor:grab}
#gl:active{cursor:grabbing}
.pin{position:absolute;left:0;top:0;transform:translate(-50%,-50%);display:flex;align-items:center;gap:6px;font:inherit;font-size:13px;font-weight:600;color:#fff;background:rgba(7,13,26,.72);border:1px solid var(--glass-line);padding:4px 10px 4px 5px;border-radius:999px;cursor:pointer;white-space:nowrap;backdrop-filter:blur(6px);transition:background .15s,border-color .15s}
.pin b{width:18px;height:18px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:11px;background:var(--c,#4a7cff);color:#04101c}
.pin:hover,.pin.on{background:rgba(47,95,229,.55);border-color:#8fb0ff}
.hint{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);font-size:13px;color:var(--w-muted);background:rgba(7,13,26,.6);padding:6px 14px;border-radius:999px;border:1px solid var(--glass-line);pointer-events:none;white-space:nowrap}
.loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--w-muted)}
.panel{overflow:auto;border-left:1px solid var(--glass-line);background:linear-gradient(180deg,#0e1a33,#09111f);padding:16px;display:flex;flex-direction:column;gap:18px}
.panel h2{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--w-muted);margin:0 0 8px;font-weight:600}
.info{border-radius:16px;padding:14px 15px;background:var(--glass);border:1px solid var(--glass-line)}
.info h3{margin:0 0 4px;font-size:19px;display:flex;align-items:center;gap:8px}
.info h3 i{width:12px;height:12px;border-radius:50%;background:var(--c,#8fb0ff)}
.info p{margin:0 0 8px;font-size:14.5px;color:#cfdaf0}
.facts{display:grid;grid-template-columns:auto 1fr;gap:3px 12px;font-size:13px;color:var(--w-muted);margin:8px 0 0}
.facts dd{margin:0;color:#e1e9f8}
.facts dt{color:var(--w-muted)}
.chips{display:flex;flex-direction:column;gap:6px}
.chip{display:flex;align-items:center;gap:10px;width:100%;font:inherit;font-size:14.5px;color:var(--w-ink);text-align:left;padding:9px 12px;border-radius:12px;border:1px solid var(--glass-line);background:rgba(255,255,255,.04);cursor:pointer}
.chip:hover{background:rgba(255,255,255,.1)}
.chip .dot{width:12px;height:12px;border-radius:50%;background:var(--c);flex:none}
.chip .eye{margin-left:auto;font-size:12px;color:var(--w-muted)}
.chip.off{opacity:.45}
.chip.on{border-color:#8fb0ff;background:rgba(47,95,229,.25)}
.row{display:flex;align-items:center;gap:12px}
input[type=range]{flex:1;accent-color:#4a7cff;height:28px}
.val{min-width:3.2em;text-align:right;font-size:13px;color:var(--w-muted)}
.tools{display:flex;gap:8px;flex-wrap:wrap}
.tools button{font:inherit;font-size:13.5px;color:var(--w-ink);padding:8px 12px;border-radius:10px;border:1px solid var(--glass-line);background:rgba(255,255,255,.05);cursor:pointer}
.tools button:hover{background:rgba(255,255,255,.12)}
.small{font-size:12.5px;color:var(--w-muted);margin:auto 0 0}
button:focus-visible,input:focus-visible,a:focus-visible,canvas:focus-visible{outline:2px solid #8fb0ff;outline-offset:2px}

@media (max-width:860px){
  .hero-in{grid-template-columns:1fr}
  .hero-art{order:-1}
  .hero-art svg{width:min(70%,260px)}
  body.studio{height:auto;min-height:100vh;overflow:auto}
  .main{grid-template-columns:1fr;grid-template-rows:62vh auto}
  .panel{border-left:0;border-top:1px solid var(--glass-line)}
  .edu{display:none}
  .hint{font-size:12px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* pins on the 3D model */
.pinw{position:absolute;left:0;top:0;width:0;height:0;display:flex;align-items:center;pointer-events:none;will-change:transform}
.pinw.L{flex-direction:row-reverse}
.pinw .pdot{width:9px;height:9px;border-radius:50%;background:#fff;border:2px solid #4a7cff;flex:none;margin:0 -4px;box-shadow:0 0 0 3px rgba(74,124,255,.3)}
.pinw .pln{width:46px;height:1px;background:rgba(255,255,255,.55);flex:none}
.pinw .pin{position:static;transform:none;pointer-events:auto}