:root{--bg:#07100d;--panel:#111915;--panel2:#17221c;--text:#f7f3e8;--muted:#bdc8c0;--green:#75ffc4;--gold:#d8b65a;--purple:#9d72ff;--danger:#ff8c8c;--line:rgba(255,255,255,.13);--radius:24px}
*{box-sizing:border-box}html{background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}body{margin:0;min-height:100vh;background:radial-gradient(circle at 10% 0%,rgba(117,255,196,.13),transparent 32%),radial-gradient(circle at 90% 10%,rgba(157,114,255,.13),transparent 28%),var(--bg)}button,a,input,select,textarea{font:inherit}.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:20;background:#fff;color:#000;padding:10px}.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px clamp(14px,3vw,28px);background:rgba(7,16,13,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none}.brand img{width:44px;height:44px;border-radius:14px}.brand strong,.brand small{display:block}.brand small{color:var(--muted);font-size:.76rem}.shell{width:min(1180px,calc(100% - 28px));margin:0 auto;padding:28px 0 54px}.hero,.panel{border:1px solid var(--line);background:linear-gradient(180deg,rgba(23,34,28,.96),rgba(12,20,16,.96));border-radius:var(--radius);box-shadow:0 22px 65px rgba(0,0,0,.3)}.hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:18px;padding:clamp(20px,4vw,40px);align-items:center}.panel{padding:clamp(18px,3vw,28px);margin-top:18px}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.74rem;color:var(--green);font-weight:900;margin:0 0 8px}h1,h2,h3{line-height:1.08;margin:.2rem 0 .65rem}h1{font-size:clamp(2rem,6vw,4rem)}h2{font-size:clamp(1.35rem,3vw,2.2rem)}p{color:var(--muted);line-height:1.55}.lead{font-size:1.08rem}.mascot{width:min(210px,60vw);display:block;margin:auto;filter:drop-shadow(0 20px 30px rgba(0,0,0,.36))}.actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.btn{border:1px solid var(--line);border-radius:999px;padding:12px 16px;background:rgba(255,255,255,.06);color:var(--text);font-weight:850;text-decoration:none;cursor:pointer;display:inline-flex;justify-content:center;align-items:center;min-height:46px}.btn:hover,.btn:focus-visible{border-color:var(--gold);transform:translateY(-1px)}.btn.primary{background:linear-gradient(135deg,var(--green),#d9ffe9);color:#07100d;border-color:transparent}.btn.soft{border-color:rgba(157,114,255,.42)}.btn.danger{border-color:rgba(255,140,140,.45)}.grid{display:grid;gap:14px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card{border:1px solid var(--line);border-radius:20px;padding:18px;background:rgba(255,255,255,.04)}.card.active{border-color:var(--green);box-shadow:0 0 0 3px rgba(117,255,196,.08)}.pillrow{display:flex;gap:8px;flex-wrap:wrap}.pill{border:1px solid var(--line);border-radius:999px;padding:6px 10px;font-size:.78rem;color:var(--muted)}.pill.good{color:#07100d;background:var(--green);border-color:transparent}.status{padding:12px 14px;border:1px dashed rgba(216,182,90,.38);border-radius:16px;background:rgba(216,182,90,.06);color:var(--muted)}.screen[hidden]{display:none!important}.screen{animation:rise .28s ease}.field{display:grid;gap:6px;margin:10px 0;color:var(--muted);font-weight:750}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:14px;background:#08110d;color:var(--text);padding:12px}.choice{display:grid;gap:9px}.choice button{text-align:left;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.045);color:var(--text);padding:14px;cursor:pointer}.choice button.selected{border-color:var(--green);background:rgba(117,255,196,.09)}.feedback{min-height:30px;color:var(--green);font-weight:800}.progress{height:12px;border-radius:999px;background:#040806;overflow:hidden;border:1px solid var(--line)}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--gold));width:0}.footer{padding:22px;text-align:center;border-top:1px solid var(--line);color:var(--muted);font-size:.82rem}.toast{position:fixed;left:50%;bottom:20px;transform:translate(-50%,20px);background:#f7f3e8;color:#07100d;border-radius:999px;padding:10px 16px;font-weight:850;opacity:0;pointer-events:none;transition:.2s;z-index:30}.toast.show{opacity:1;transform:translate(-50%,0)}.localNote{font-size:.86rem}.backlink{white-space:nowrap}@keyframes rise{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}@media(max-width:900px){.hero,.grid.two,.grid.three{grid-template-columns:1fr}.hero .mascot{width:min(120px,32vw);max-height:180px;object-fit:contain}.top{align-items:flex-start}.backlink{font-size:.78rem;padding:9px 11px}.actions .btn{flex:1 1 180px}}@media(max-width:480px){.shell{padding-top:18px}.hero{padding:20px}.hero .mascot{width:96px;max-height:144px}.hero h1{font-size:clamp(1.9rem,10vw,2.65rem)}.top{align-items:center}.brand small{max-width:130px}.actions .btn{flex-basis:100%}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* Technology ParentLink update */
.homeActivityCard{border-color:rgba(117,255,196,.45)}.feedback:empty{display:none}

/* VexSpark™ original-proportion and shell-alignment repair — 2026-07-11 */
.shell{width:min(1180px,calc(100% - 2rem));}
.hero > *,.grid > *,.helpPanel > *,.lessonHeader > *,.sectionHead > *{min-width:0;}
img[src*="assets/vexspark/"]{
  display:block;
  height:auto!important;
  max-height:none!important;
  aspect-ratio:2 / 3!important;
  object-fit:contain!important;
  object-position:center!important;
  flex-shrink:0;
}
.hero .mascot,.mascot{width:min(210px,60vw);height:auto!important;max-height:none!important;}
.helpPanel img{width:94px!important;max-width:94px!important;height:auto!important;max-height:none!important;justify-self:center;}
.compactHelp img{width:78px!important;max-width:78px!important;height:auto!important;max-height:none!important;}
.vexTitle img{width:64px!important;max-width:64px!important;height:auto!important;}
@media(max-width:900px){.hero .mascot,.mascot{width:120px!important;max-width:120px!important;height:auto!important;}}
@media(max-width:650px){.shell{width:calc(100% - 1.5rem)}.hero .mascot,.mascot{width:96px!important;max-width:96px!important}.helpPanel img{width:82px!important;max-width:82px!important}.vexTitle img{width:56px!important;max-width:56px!important}}