:root{--bg:#0d0f13;--panel:#171a21;--panel2:#1f232c;--text:#f5f7fb;--muted:#a7afbd;--accent:#e31b23;--accent2:#ff4b52;--good:#39c67a;--bad:#ff6464;--warn:#e2b94f;--line:#2b303b;--shadow:0 20px 55px rgba(0,0,0,.34)}
*{box-sizing:border-box}html{background:var(--bg);color-scheme:dark}body{margin:0;font-family:Inter,Segoe UI,system-ui,-apple-system,sans-serif;background:radial-gradient(circle at 10% 0%,#2a1114 0,transparent 28%),var(--bg);color:var(--text);min-height:100vh}.shell{width:min(960px,100%);margin:auto;padding:24px 18px 50px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}.eyebrow{font-size:.72rem;letter-spacing:.2em;color:var(--accent2);font-weight:800}.topbar h1{font-size:clamp(1.55rem,4vw,2.35rem);margin:3px 0 0}.screen{display:none}.screen.active{display:block}.card{background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.01)),var(--panel);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.hero{padding:28px;display:grid;grid-template-columns:1fr auto;gap:22px;align-items:center}.hero h2{font-size:clamp(1.8rem,5vw,3.3rem);line-height:1.02;margin:14px 0 10px;max-width:620px}.hero p,.import-card p,.music-card p{color:var(--muted);line-height:1.55;margin:0;max-width:760px}.pill{display:inline-flex;align-items:center;border-radius:999px;background:rgba(227,27,35,.15);color:#ff9196;border:1px solid rgba(227,27,35,.35);padding:6px 10px;font-size:.76rem;font-weight:800;letter-spacing:.03em}.pill.muted{background:#252a34;color:#bdc4d0;border-color:#303642}.score-ring{width:120px;height:120px;border-radius:50%;display:grid;place-content:center;text-align:center;background:conic-gradient(var(--accent) 0 70%,#282d36 70% 100%);border:8px solid #20242c}.score-ring span{font-size:1.8rem;font-weight:900}.score-ring small{color:var(--muted)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:14px 0}.stat{padding:18px}.stat strong{display:block;font-size:1.6rem}.stat span{color:var(--muted);font-size:.85rem}.setup,.import-card,.music-card{padding:24px;margin-top:14px}.setup h3,.import-card h3,.music-card h3{margin:0 0 10px}.setup label,.music-form label{display:grid;gap:7px;color:var(--muted);font-size:.86rem;margin:14px 0}select,input[type=text],textarea{width:100%;padding:14px 15px;border:1px solid #343a46;border-radius:14px;background:#101319;color:var(--text);font:inherit;outline:none}select:focus,input[type=text]:focus,textarea:focus{border-color:var(--accent2);box-shadow:0 0 0 3px rgba(227,27,35,.15)}.actions,.quiz-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.actions.centered{justify-content:center}button,.file-btn{border:0;border-radius:14px;padding:13px 17px;font:inherit;font-weight:800;cursor:pointer;transition:.18s transform,.18s opacity,.18s background}.primary{background:var(--accent);color:white}.primary:hover{background:var(--accent2);transform:translateY(-1px)}.secondary{background:#292f39;color:white}.secondary:hover,.ghost:hover,.file-btn:hover{background:#343b47}.ghost,.file-btn{background:#20252e;color:#e9edf4;border:1px solid #323844}.small{padding:9px 11px}.file-btn{display:inline-flex;margin-right:8px;align-items:center}.file-btn input{display:none}.file-btn.wide{justify-content:center;margin:14px 0 0}.hidden{display:none!important}.quiz-head{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;margin-bottom:15px}.progress-wrap{height:9px;border-radius:99px;background:#232831;overflow:hidden}.progress{height:100%;width:0;background:linear-gradient(90deg,var(--accent),#ff6269);transition:width .3s}.question-card{padding:26px}.meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:15px}.question-card h2{font-size:clamp(1.45rem,4.7vw,2.55rem);line-height:1.15;margin:0 0 24px}.visual-wrap{background:#f2f3f5;border-radius:18px;padding:18px;margin:0 0 22px;text-align:center}.visual-wrap img{max-width:100%;max-height:350px;object-fit:contain}.audio-wrap{margin:-2px 0 22px;padding:16px;border-radius:16px;background:#101319;border:1px solid #303641}.audio-wrap audio{width:100%}.audio-player-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.audio-hint{color:var(--muted);font-size:.86rem}.choice-grid{display:grid;gap:10px}.choice{display:flex;gap:12px;align-items:center;text-align:left;width:100%;background:#20252e;color:var(--text);border:1px solid #303641}.choice:hover{background:#282e38}.choice.selected{border-color:var(--accent2);background:rgba(227,27,35,.13)}.choice .letter{display:grid;place-items:center;min-width:30px;height:30px;border-radius:9px;background:#343b46}.feedback{margin-top:18px;padding:16px;border-radius:14px;line-height:1.5}.feedback.good{background:rgba(57,198,122,.12);border:1px solid rgba(57,198,122,.35)}.feedback.bad{background:rgba(255,100,100,.11);border:1px solid rgba(255,100,100,.35)}.feedback.neutral{background:rgba(226,185,79,.1);border:1px solid rgba(226,185,79,.35)}.feedback strong{display:block;margin-bottom:6px}.results-card{padding:30px;text-align:center}.result-score{width:160px;height:160px;border-radius:50%;display:grid;place-content:center;margin:0 auto 22px;background:#101319;border:10px solid var(--accent)}.result-score strong{font-size:2.5rem}.result-score span{color:var(--muted)}.breakdown{display:grid;gap:10px;text-align:left;margin:22px 0}.break-row{background:#11141a;border:1px solid var(--line);padding:13px 15px;border-radius:12px;display:flex;justify-content:space-between;gap:12px}.break-row span{color:var(--muted)}.import-card{margin-bottom:0}.card-headline{display:flex;justify-content:space-between;align-items:flex-start;gap:14px}.music-form{display:grid;grid-template-columns:1fr 1fr;gap:0 12px;margin-top:10px}.fineprint,.credits{font-size:.78rem;color:#808999!important}.credits{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:24px 0 0}.bonus-box{margin-top:14px;padding:14px;border:1px dashed #3a414e;border-radius:14px}.bonus-box label{display:grid;gap:7px;color:var(--muted);font-size:.86rem}.bonus-result{color:var(--muted)}.draw-tools{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}.draw-canvas{display:block;width:100%;height:330px;background:white;border-radius:16px;touch-action:none;cursor:crosshair}.self-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}.audio-answer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.audio-answer-grid label{display:grid;gap:7px;color:var(--muted);font-size:.86rem}.volatile-note{font-size:.8rem;color:var(--warn);margin-top:10px}
@media(max-width:700px){.shell{padding:16px 12px 32px}.hero{grid-template-columns:1fr}.score-ring{width:96px;height:96px}.stats-grid{grid-template-columns:1fr 1fr}.topbar{align-items:flex-start}.question-card{padding:20px}.quiz-head{grid-template-columns:auto 1fr}.quiz-head #progressText{grid-column:1/-1;text-align:right;font-size:.82rem;color:var(--muted)}.music-form,.audio-answer-grid{grid-template-columns:1fr}.card-headline{display:block}.card-headline .pill{margin-top:10px}.draw-canvas{height:270px}}

.top-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}.pill.offline{background:rgba(226,185,79,.14);color:#f2cf73;border-color:rgba(226,185,79,.38)}@media(max-width:700px){.top-actions{justify-content:flex-end}.top-actions .pill{font-size:.7rem}}

.editor-card{margin-top:14px;overflow:hidden}.editor-card>summary{list-style:none;cursor:pointer;padding:22px 24px;display:flex;justify-content:space-between;gap:12px;align-items:center;font-weight:900}.editor-card>summary::-webkit-details-marker{display:none}.editor-card>summary:after{content:"＋";font-size:1.4rem;color:var(--accent2)}.editor-card[open]>summary:after{content:"−"}.editor-card>summary small{font-weight:500;color:var(--muted);margin-left:auto}.editor-body{padding:0 24px 24px;border-top:1px solid var(--line)}.editor-note{color:var(--muted);line-height:1.5}.editor-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}.editor-form label{display:grid;gap:7px;color:var(--muted);font-size:.86rem}.editor-form textarea{resize:vertical;min-height:76px}.span-2{grid-column:1/-1}.check-label{display:flex!important;align-items:center;gap:10px!important;padding-top:28px}.check-label input{width:20px;height:20px}.editor-actions{display:flex;gap:8px;flex-wrap:wrap}.editor-list-head{display:flex;justify-content:space-between;gap:12px;align-items:end;margin:24px 0 10px}.editor-list-head span{font-size:.78rem;color:var(--muted)}.custom-question-list{display:grid;gap:8px}.custom-question-item{display:grid;grid-template-columns:1fr auto;gap:10px;padding:12px 14px;background:#11141a;border:1px solid var(--line);border-radius:12px}.custom-question-item strong{display:block}.custom-question-item small{color:var(--muted)}.custom-question-actions{display:flex;gap:6px;align-items:center}.danger{background:rgba(255,100,100,.1);color:#ff8d8d;border:1px solid rgba(255,100,100,.25)}@media(max-width:700px){.editor-form{grid-template-columns:1fr}.span-2{grid-column:auto}.editor-card>summary{align-items:flex-start}.editor-card>summary small{display:none}.editor-list-head{display:block}.custom-question-item{grid-template-columns:1fr}.custom-question-actions{justify-content:flex-start}.check-label{padding-top:4px}}