#mhtsqQuizApp{--c1:#0f766e;--c2:#2563eb;--c3:#7c3aed;--c4:#f59e0b;--ink:#172033;--muted:#64748b;--card:#fff;--good:#15803d;--bad:#b91c1c;--line:#dbe4f0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);box-sizing:border-box;position:relative}
#mhtsqQuizApp *{box-sizing:border-box}
.mhtsq-wrap{background:linear-gradient(135deg,#eef7ff,#f9f5ff 48%,#fff8e7);padding:18px;border-radius:24px;max-width:1080px;margin:20px auto;overflow:visible}
.mhtsq-shell{max-width:1000px;margin:auto}.mhtsq-hidden{display:none!important}
.mhtsq-topbar{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:16px}.mhtsq-brand{font-size:13px;font-weight:800;letter-spacing:.3px;color:var(--c3);text-transform:uppercase}.mhtsq-topbar h2{font-size:clamp(22px,4vw,34px);line-height:1.15;margin:5px 0 6px}.mhtsq-sub{font-size:14px;color:var(--muted);font-weight:600}
.mhtsq-timerBox{min-width:132px;background:#101828;color:#fff;border-radius:18px;padding:10px 14px;text-align:center;box-shadow:0 8px 25px #0f172a20;position:sticky;top:8px;z-index:8}.mhtsq-timerBox span{display:block;font-size:11px;opacity:.85;text-transform:uppercase;letter-spacing:.6px}.mhtsq-timerBox strong{display:block;font-size:25px;line-height:1.1;margin-top:3px}
.mhtsq-card{background:var(--card);border:1px solid #e6edf7;border-radius:22px;padding:clamp(16px,3vw,28px);box-shadow:0 12px 35px #1e293b12}.mhtsq-start{text-align:center;padding-top:30px;padding-bottom:30px}.mhtsq-badge{display:inline-block;background:#ede9fe;color:#5b21b6;font-weight:800;border-radius:999px;padding:7px 12px;font-size:13px}.mhtsq-start h3,.mhtsq-resultCard h3{font-size:clamp(22px,4vw,32px);margin:12px 0 8px}.mhtsq-start p{max-width:760px;margin:0 auto 22px;color:var(--muted);line-height:1.6}
.mhtsq-formgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px;text-align:left;max-width:760px;margin:0 auto 15px}.mhtsq-formgrid label{font-weight:800;font-size:14px}.mhtsq-formgrid input{width:100%;margin-top:6px;border:1.5px solid #cbd5e1;border-radius:12px;padding:13px 14px;font-size:16px;outline:none;background:#fff}.mhtsq-formgrid input:focus{border-color:var(--c2);box-shadow:0 0 0 4px #2563eb18}.mhtsq-note{font-size:13px;color:#475569;background:#f8fafc;border:1px dashed #cbd5e1;padding:10px 12px;border-radius:12px;max-width:760px;margin:0 auto 18px}.mhtsq-error{color:var(--bad);font-weight:700;margin-top:10px}
.mhtsq-statusline{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:14px;margin:8px 2px;color:#334155}.mhtsq-statusline b{color:var(--c2)}.mhtsq-progress{height:10px;background:#e8eef7;border-radius:99px;overflow:hidden;margin-bottom:12px}.mhtsq-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--c1),var(--c2),var(--c3));transition:width .3s}
.mhtsq-paletteBox{background:#fff;border:1px solid #e4eaf3;border-radius:14px;margin-bottom:14px;padding:10px 12px}.mhtsq-paletteBox summary,.mhtsq-reviewBox summary{cursor:pointer;font-weight:800;color:#334155}.mhtsq-palette{display:grid;grid-template-columns:repeat(15,1fr);gap:6px;margin-top:10px}.mhtsq-palette button{border:1px solid #d6deea;background:#fff;border-radius:8px;padding:7px 2px;font-size:12px;cursor:pointer}.mhtsq-palette button.current{background:#1d4ed8;color:#fff;border-color:#1d4ed8}.mhtsq-palette button.answered{background:#dcfce7;border-color:#86efac;color:#166534}.mhtsq-palette button.skipped{background:#fff7ed;border-color:#fed7aa;color:#9a3412}.mhtsq-palette button.cancelled{background:#f1f5f9;color:#475569;border-color:#cbd5e1}
.mhtsq-qhead{display:flex;align-items:flex-start;gap:12px;font-size:clamp(18px,3vw,24px);font-weight:850;line-height:1.4}.mhtsq-qno{flex:0 0 auto;background:linear-gradient(135deg,var(--c2),var(--c3));color:#fff;border-radius:11px;padding:5px 9px;font-size:15px;margin-top:2px}.mhtsq-context{margin-bottom:15px;background:#f8fafc;border-left:4px solid var(--c3);padding:13px 15px;border-radius:10px;color:#334155;line-height:1.6}
/* IMAGE FIX: never crop question images. They always keep natural aspect ratio. */
.mhtsq-figureBox{margin:18px 0 8px;border:1px solid #dbe4f0;border-radius:16px;background:#fff;padding:10px;overflow:visible}.mhtsq-figureTop{display:flex;justify-content:space-between;gap:8px;align-items:center;font-size:13px;color:#475569;margin:2px 4px 9px}.mhtsq-figureTop span{font-size:12px;color:#64748b}.mhtsq-imageButton{display:block;width:100%;padding:0;border:0;background:#fff;cursor:zoom-in;overflow:visible;border-radius:10px}.mhtsq-qimage{display:block;width:100%!important;max-width:100%!important;height:auto!important;max-height:none!important;min-height:0!important;object-fit:contain!important;object-position:center!important;margin:0 auto;border:0!important;border-radius:10px;background:#fff}.mhtsq-imageActions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;justify-content:center}
.mhtsq-options{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin-top:20px}.mhtsq-option{position:relative;border:1.5px solid #d8e0ec;border-radius:14px;padding:13px 14px;display:flex;gap:11px;align-items:flex-start;cursor:pointer;background:#fff;transition:.2s;line-height:1.4}.mhtsq-option:hover{border-color:#93c5fd;transform:translateY(-1px)}.mhtsq-option input{margin-top:3px;accent-color:var(--c2);transform:scale(1.12)}.mhtsq-option span{font-size:15px}.mhtsq-option.correct{background:#f0fdf4;border-color:#4ade80}.mhtsq-option.wrong{background:#fef2f2;border-color:#f87171}.mhtsq-option.locked{cursor:default;transform:none}
.mhtsq-feedback{margin-top:18px;padding:14px 16px;border-radius:14px;font-weight:800;line-height:1.5}.mhtsq-feedback.good{background:#ecfdf5;color:#166534;border:1px solid #86efac}.mhtsq-feedback.bad{background:#fff1f2;color:#9f1239;border:1px solid #fecdd3}.mhtsq-feedback.cancel{background:#f8fafc;color:#334155;border:1px solid #cbd5e1}.mhtsq-tip{margin-top:10px;background:#eff6ff;border:1px solid #bfdbfe;color:#1e3a8a;padding:13px 15px;border-radius:14px;line-height:1.5}.mhtsq-tip:before{content:"⚡ Quick Shortcut: ";font-weight:900}
.mhtsq-actions,.mhtsq-certActions{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}.mhtsq-btn{appearance:none;border:0;border-radius:12px;padding:11px 15px;font-weight:800;font-size:14px;cursor:pointer;text-decoration:none!important;display:inline-flex;align-items:center;justify-content:center}.mhtsq-primary{background:#2563eb;color:#fff}.mhtsq-secondary{background:#e2e8f0;color:#0f172a}.mhtsq-ghost{background:#fff;border:1px solid #cbd5e1;color:#334155}.mhtsq-danger{background:#dc2626;color:#fff}.mhtsq-success{background:#15803d;color:#fff}.mhtsq-btn:disabled{opacity:.45;cursor:not-allowed}
.mhtsq-resultCard{text-align:center}.mhtsq-resultIcon{font-size:56px}.mhtsq-resultName{font-weight:800;color:#475569;margin-bottom:18px}.mhtsq-scoregrid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:16px 0}.mhtsq-scoregrid div{background:#f8fafc;border:1px solid #e2e8f0;border-radius:14px;padding:13px}.mhtsq-scoregrid span{display:block;font-size:12px;color:#64748b}.mhtsq-scoregrid strong{display:block;font-size:22px;margin-top:3px}.mhtsq-resultMessage{max-width:780px;margin:12px auto 18px;line-height:1.55;color:#334155}.mhtsq-certActions{justify-content:center}.mhtsq-canvas{display:block;max-width:100%;height:auto;margin:18px auto 0;border:1px solid #dbe4f0;border-radius:12px}.mhtsq-reviewBox{text-align:left;margin-top:22px;border-top:1px solid #e2e8f0;padding-top:16px}.mhtsq-reviewItem{padding:12px 2px;border-bottom:1px solid #eef2f7}.mhtsq-reviewItem b,.mhtsq-reviewItem small{display:block}.mhtsq-reviewItem small{margin-top:5px;color:#475569;line-height:1.45}.mhtsq-restart{margin-top:18px}
.mhtsq-petals{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:100001}.mhtsq-petal{position:absolute;top:-40px;font-size:22px;animation:mhtsqFall linear forwards;will-change:transform,opacity}@keyframes mhtsqFall{0%{transform:translate3d(0,-20px,0) rotate(0deg);opacity:1}100%{transform:translate3d(var(--drift),110vh,0) rotate(720deg);opacity:.1}}
/* Full-screen original-size viewer. Scroll in both directions at Actual Size; Fit Screen shows the whole image. */
.mhtsq-lightbox{position:fixed;inset:0;background:rgba(15,23,42,.96);z-index:100000;display:flex;flex-direction:column}.mhtsq-lightboxBar{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:10px 12px;background:#0f172a;color:#fff;border-bottom:1px solid #334155}.mhtsq-lightboxBar>div{display:flex;gap:7px;flex-wrap:wrap}.mhtsq-lightboxBar button{border:1px solid #64748b;background:#1e293b;color:#fff;border-radius:9px;padding:8px 10px;font-weight:700;cursor:pointer}.mhtsq-lightboxScroll{flex:1;overflow:auto;-webkit-overflow-scrolling:touch;padding:16px;text-align:center}.mhtsq-lightboxScroll img{display:block;margin:0 auto;background:#fff;box-shadow:0 10px 40px #0008}.mhtsq-lightboxScroll img.fit{max-width:100%;max-height:calc(100vh - 90px);width:auto;height:auto}.mhtsq-lightboxScroll img.actual{max-width:none;max-height:none;width:auto;height:auto}
@media(max-width:760px){.mhtsq-wrap{padding:10px;border-radius:16px;margin:8px auto}.mhtsq-topbar{align-items:flex-start}.mhtsq-timerBox{min-width:112px;padding:9px 10px}.mhtsq-timerBox strong{font-size:21px}.mhtsq-formgrid{grid-template-columns:1fr}.mhtsq-palette{grid-template-columns:repeat(10,1fr)}.mhtsq-options{grid-template-columns:1fr}.mhtsq-scoregrid{grid-template-columns:1fr 1fr}.mhtsq-card{border-radius:16px}.mhtsq-figureBox{padding:7px}.mhtsq-figureTop{align-items:flex-start;flex-direction:column}.mhtsq-imageActions .mhtsq-btn{flex:1 1 145px}.mhtsq-qimage{width:100%!important;height:auto!important;max-height:none!important}}
@media(max-width:480px){.mhtsq-topbar{display:block}.mhtsq-timerBox{position:sticky;top:4px;width:100%;margin-top:10px;display:flex;justify-content:center;gap:8px;align-items:center}.mhtsq-timerBox span,.mhtsq-timerBox strong{display:inline}.mhtsq-palette{grid-template-columns:repeat(8,1fr)}.mhtsq-actions .mhtsq-btn{flex:1 1 44%}.mhtsq-scoregrid{grid-template-columns:1fr 1fr}.mhtsq-lightboxBar{align-items:flex-start;flex-direction:column}.mhtsq-lightboxBar>div{width:100%}.mhtsq-lightboxBar button{flex:1}}