:root{--bg:#f7f8fb;--card:#fff;--ink:#17202a;--muted:#667085;--line:#e4e7ec;--accent:#1f2937;--good:#166534;--warn:#92400e;--bad:#991b1b}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink)}button,input,select,textarea{font:inherit}.studio-top{position:sticky;top:0;z-index:5;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;padding:12px 18px}.studio-brand{font-weight:800}.studio-top .spacer{flex:1}.studio-top select{max-width:280px;padding:8px;border:1px solid var(--line);border-radius:8px}.btn{border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 12px;cursor:pointer}.btn.primary{background:#111827;color:#fff;border-color:#111827}.btn.danger{color:var(--bad)}.studio-wrap{max-width:1450px;margin:0 auto;padding:20px}.hero{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:16px}.hero h1{margin:0;font-size:28px}.muted{color:var(--muted)}.tiny{font-size:12px}.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:18px}.tab{padding:9px 12px;border-radius:999px;border:1px solid var(--line);background:#fff;cursor:pointer}.tab.active{background:#111827;color:#fff}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;box-shadow:0 1px 2px rgba(16,24,40,.03)}.span-12{grid-column:span 12}.span-8{grid-column:span 8}.span-6{grid-column:span 6}.span-4{grid-column:span 4}.kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.kpi{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px}.kpi strong{display:block;font-size:22px}.list{display:flex;flex-direction:column;gap:8px}.row{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;padding:10px;border:1px solid var(--line);border-radius:9px;background:#fff}.row-actions{display:flex;gap:6px;flex-wrap:wrap}.pill{display:inline-block;padding:3px 7px;border-radius:999px;background:#f2f4f7;font-size:12px}.good{color:var(--good)}.warn{color:var(--warn)}.bad{color:var(--bad)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.form-grid label{display:flex;flex-direction:column;gap:5px}.form-grid input,.form-grid select,.form-grid textarea{padding:9px;border:1px solid var(--line);border-radius:8px;background:#fff}.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:12px}.tree{margin-left:10px;border-left:2px solid #eef0f2;padding-left:12px}.block{margin:6px 0;padding:8px;border:1px dashed #d0d5dd;border-radius:8px;background:#fafafa}.empty{padding:20px;text-align:center;color:var(--muted)}pre{white-space:pre-wrap;word-break:break-word;background:#0b1020;color:#d1e7ff;padding:12px;border-radius:8px;max-height:380px;overflow:auto}.notice{padding:10px 12px;background:#fffaeb;border:1px solid #fedf89;border-radius:9px;color:#7a2e0e;margin-bottom:12px}@media(max-width:900px){.span-8,.span-6,.span-4{grid-column:span 12}.kpis{grid-template-columns:repeat(2,1fr)}.studio-top{flex-wrap:wrap}.form-grid{grid-template-columns:1fr}}

/* v7.2.6 Studio modal/editor workflows */
body.modal-open{overflow:hidden}.studio-modal{position:fixed;inset:0;z-index:100;background:rgba(15,23,42,.52);display:grid;place-items:center;padding:20px}.studio-modal.hidden{display:none}.studio-modal-card{width:min(980px,100%);max-height:92vh;overflow:auto;background:#fff;border-radius:16px;box-shadow:0 30px 80px rgba(15,23,42,.28)}.studio-modal-head{position:sticky;top:0;z-index:2;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 18px}.studio-modal-head h2{margin:0;font-size:20px}.studio-modal-body{padding:18px}.studio-form{display:flex;flex-direction:column;gap:14px}.studio-form label{display:flex;flex-direction:column;gap:6px;font-weight:650;font-size:13px}.studio-form input,.studio-form select,.studio-form textarea{width:100%;padding:10px 11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink)}.studio-form textarea{resize:vertical}.studio-form-grid{display:grid;gap:12px}.studio-form-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.studio-form-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.studio-modal-actions{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap;margin-top:6px}.studio-form-note,.usage-note{padding:10px 12px;border-radius:9px;background:#f8fafc;border:1px solid var(--line);color:var(--muted);font-size:12px}.field-help{font-weight:400;color:var(--muted);font-size:11px}.question-preview{margin-top:5px;max-width:760px}.confirm-copy{font-size:14px;line-height:1.55}.game-ready{text-align:center;padding:20px}.join-code{font-size:44px;font-weight:900;letter-spacing:8px;margin:8px 0 16px}.btn.danger{border-color:#fecaca;background:#fff;color:var(--bad)}
@media(max-width:800px){.studio-form-grid.two,.studio-form-grid.three{grid-template-columns:1fr}.studio-modal{padding:8px;align-items:end}.studio-modal-card{border-radius:16px 16px 8px 8px;max-height:95vh}}

/* v7.2.11 assessment reuse / question rotation */
.span-7{grid-column:span 7}.span-5{grid-column:span 5}
.usage-strip{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.usage-strip span{border:1px solid var(--line);border-radius:999px;padding:4px 8px;font-size:11px;background:#f8fafc}.usage-history{display:grid;gap:5px;margin-top:8px}.usage-history span{font-size:11px;border-left:3px solid #98a2b3;padding-left:8px}.check-field{display:grid!important;grid-template-columns:auto 1fr;align-items:start;column-gap:8px;row-gap:3px}.check-field input{width:auto!important;margin-top:2px}.check-field .field-help{grid-column:2}.reuse-row{align-items:flex-start}.reuse-row>div:first-child{min-width:0}.toolbar label.tiny{display:flex;align-items:center;gap:7px}.toolbar label.tiny select{padding:7px 9px;border:1px solid var(--line);border-radius:8px;background:#fff}.row strong+.pill{margin-left:4px}
@media(max-width:900px){.span-7,.span-5{grid-column:span 12}}