:root{--paper:#f5f7fb;--surface:#fff;--surface-soft:#f8fafc;--ink:#172033;--muted:#687386;--line:#e5e9f0;--accent:#335cff;--accent-dark:#2444c7;--accent-soft:#edf1ff;--violet:#7757e8;--correct:#138a65;--correct-soft:#e8f8f1;--wrong:#d34b5d;--wrong-soft:#fff0f2;--shadow:0 18px 48px #26355814;font-family:Avenir Next,Avenir,Segoe UI,sans-serif}:root[data-theme=dark]{--paper:#111522;--surface:#1a2030;--surface-soft:#20283a;--ink:#f0f3fb;--muted:#aab4c8;--line:#303a50;--accent:#7f9cff;--accent-dark:#a9bbff;--accent-soft:#222d50;--violet:#b4a2ff;--correct:#59d5a9;--correct-soft:#173d36;--wrong:#ff8290;--wrong-soft:#482732;--shadow:0 18px 48px #00000040}:root[data-theme=dark] .tab:hover,:root[data-theme=dark] .test-row:hover{box-shadow:0 8px 24px #00000047}@media (prefers-color-scheme:dark){:root[data-theme=system]{--paper:#111522;--surface:#1a2030;--surface-soft:#20283a;--ink:#f0f3fb;--muted:#aab4c8;--line:#303a50;--accent:#7f9cff;--accent-dark:#a9bbff;--accent-soft:#222d50;--violet:#b4a2ff;--correct:#59d5a9;--correct-soft:#173d36;--wrong:#ff8290;--wrong-soft:#482732;--shadow:0 18px 48px #00000040}}*{box-sizing:border-box}body{background:var(--paper);min-width:320px;color:var(--ink);margin:0;line-height:1.55}button,input,textarea,select{font:inherit}button{transition:transform .16s,box-shadow .16s,border-color .16s,background .16s}button:active{transform:translateY(1px)}.app{width:min(1180px,100% - 64px);margin:0 auto;padding:40px 0 72px}.masthead{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:32px;padding-bottom:28px;display:flex}.masthead h1{letter-spacing:-.04em;margin:0;font-size:clamp(1.7rem,3vw,2.45rem);line-height:1.1}.masthead p{color:var(--muted);margin:9px 0 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0;font-size:1.55rem}.eyebrow{color:var(--violet);letter-spacing:.12em;text-transform:uppercase;margin:0;font-size:.72rem;font-weight:800}.step-pill{color:var(--muted);letter-spacing:.08em;font-size:.75rem;font-weight:800}.create-panel,.card,.notice{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:18px}.create-panel{padding:28px}.source-switcher{border-bottom:1px solid var(--line);gap:10px;margin-bottom:20px;padding-bottom:22px;display:flex}.source-switcher .tab{border:1px solid var(--line);background:var(--surface-soft)}.source-switcher .tab.is-active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-dark);box-shadow:none}.field-label{color:var(--muted);margin:0 0 7px;font-size:.8rem;font-weight:700;display:block}input,textarea,select{border:1px solid var(--line);background:var(--surface);width:100%;color:var(--ink);border-radius:10px;outline:none;padding:12px 14px}input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}textarea{resize:vertical;min-height:230px}.upload-box{background:var(--accent-soft);min-height:150px;color:var(--accent-dark);cursor:pointer;text-align:center;border:1.5px dashed #9cacf0;border-radius:12px;justify-content:center;align-items:center;padding:24px;font-weight:700;display:flex}.upload-box:hover{border-color:var(--accent);background:var(--accent-soft)}.upload-box input{display:none}.actions,.card-actions{justify-content:space-between;align-items:center;gap:16px;margin-top:20px;display:flex}.counter,.hint{color:var(--muted);font-size:.84rem}.primary,.secondary{cursor:pointer;border-radius:10px;padding:11px 17px;font-weight:750}.primary{border:1px solid var(--accent);background:var(--accent);color:#fff;box-shadow:0 8px 18px #335cff33}.primary:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 11px 24px 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span{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:.7rem;font-weight:700}.card h2:not(.test-name){color:var(--muted);letter-spacing:.1em;text-transform:uppercase;margin:26px 0 9px;font-size:.8rem}.summary{color:var(--muted);max-width:72ch;margin:18px 0 0}.questions-heading{justify-content:space-between;align-items:baseline;gap:12px;margin:26px 0 9px;display:flex}.questions-heading h2{margin:0}.progress-pill{color:var(--accent-dark);background:var(--accent-soft);white-space:nowrap;border-radius:999px;padding:4px 10px;font-size:.74rem;font-weight:750}.questions{margin:0;padding:0;list-style:none}.question{border-top:1px solid var(--line);padding:22px 0}.question:first-child{margin-top:4px}.question-text{align-items:baseline;gap:10px;margin:0 0 14px;font-size:1rem;font-weight:700;display:flex}.question-number{background:var(--accent-soft);width:24px;height:24px;color:var(--accent-dark);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.8rem;font-weight:800;display:inline-flex}.options{grid-template-columns:1fr 1fr;gap:9px;display:grid}.option{border:1px solid var(--line);background:var(--surface);min-height:48px;color:var(--ink);text-align:left;cursor:pointer;border-radius:9px;align-items:center;gap:10px;padding:10px 13px;display:flex}.option-marker{border:2px solid var(--line);background:0 0;border-radius:50%;flex-shrink:0;width:16px;height:16px;transition:border-color .16s,background .16s}.option-text{flex:1}.option:hover:enabled{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-dark);transform:translateY(-1px)}.option:hover:enabled .option-marker{border-color:var(--accent)}.option.is-selected{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-dark);font-weight:700}.option.is-selected .option-marker{border-color:var(--accent);background:var(--accent);box-shadow:inset 0 0 0 3px var(--accent-soft)}.option.is-correct{border-color:var(--correct);background:var(--correct-soft);color:var(--correct);font-weight:700}.option.is-correct .option-marker{border-color:var(--correct);background:var(--correct);box-shadow:inset 0 0 0 3px var(--correct-soft)}.option.is-wrong{border-color:var(--wrong);background:var(--wrong-soft);color:var(--wrong)}.option.is-wrong .option-marker{border-color:var(--wrong);background:var(--wrong);box-shadow:inset 0 0 0 3px var(--wrong-soft)}.option.is-muted{color:var(--muted);background:var(--surface-soft)}.option.is-muted .option-marker{border-color:var(--line)}.option:disabled{cursor:default}.explanation{background:var(--surface-soft);color:var(--muted);border-radius:8px;margin:13px 0 0;padding:11px 13px;font-size:.9rem}.history-toolbar{border-bottom:1px solid var(--line);padding-bottom:20px}.history-toolbar select{width:auto;min-width:170px;margin:0}.saved-layout{grid-template-columns:300px minmax(0,1fr);align-items:start;gap:24px;display:grid}.test-list{gap:10px;max-height:calc(100vh - 40px);padding:2px;display:grid;position:sticky;top:20px;overflow-y:auto}.test-row{border:1px solid var(--line);background:var(--surface);width:100%;color:var(--ink);text-align:left;cursor:pointer;border-radius:12px;flex-direction:column;gap:10px;padding:14px 16px;display:flex}.test-row:hover{border-color:var(--accent);background:var(--surface-soft);box-shadow:var(--shadow);transform:translateY(-1px)}.test-row.is-selected{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 9px 22px #335cff24}.test-row-title{text-overflow:ellipsis;white-space:nowrap;font-weight:750;line-height:1.3;overflow:hidden}.test-row-meta{justify-content:space-between;align-items:center;gap:10px;display:flex}.test-row-source{color:var(--muted);text-transform:capitalize;font-size:.76rem;font-weight:600}.status-pill{white-space:nowrap;border-radius:999px;flex-shrink:0;align-items:center;padding:3px 10px;font-size:.72rem;font-weight:750;display:inline-flex}.status-pill.is-taken{background:var(--correct-soft);color:var(--correct)}.status-pill.is-pending{background:var(--surface-soft);color:var(--muted);border:1px dashed var(--line)}.saved-detail .card{margin:0}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}@media (width<=820px){.app{width:min(100% - 32px,680px);padding-top:24px}.saved-layout{grid-template-columns:1fr}.test-list{max-height:none;padding-bottom:4px;display:flex;position:static;overflow:auto visible}.test-row{min-width:220px}}@media (width<=560px){.app{width:min(100% - 24px,460px)}.masthead,.page-intro,.history-toolbar,.actions{flex-direction:column;align-items:stretch}.create-panel,.card{padding:20px}.source-switcher{overflow-x:auto}.source-switcher .tab{white-space:nowrap}.options{grid-template-columns:1fr}.actions .primary{width:100%}.header-tools{flex-direction:column;align-items:stretch;gap:10px}.theme-control{justify-content:space-between}}