:root{--font-sans:"Outfit", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;--border-radius-xs:4px;--border-radius-sm:8px;--border-radius-md:12px;--border-radius-lg:16px;--border-radius-xl:24px;--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.4s cubic-bezier(.16, 1, .3, 1);--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--shadow-xl:0 20px 25px -5px #0000001a, 0 10px 10px -5px 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var(--border-color);border-radius:var(--border-radius-sm);cursor:grab;box-shadow:var(--shadow-sm);-webkit-user-select:none;user-select:none;padding:.5rem 1rem;font-size:.9rem;font-weight:600}.draggable-item:active{cursor:grabbing}.drop-zones-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;display:grid}.drop-zone-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius-md);flex-direction:column;align-items:center;gap:.75rem;padding:1rem;display:flex}.drop-zone-label{color:var(--text-secondary);text-align:center;font-size:.85rem;font-weight:700}.drop-zone{border:2px dashed var(--border-color);border-radius:var(--border-radius-sm);background:var(--bg-tertiary);width:100%;min-height:50px;transition:all var(--transition-fast);justify-content:center;align-items:center;padding:.25rem;display:flex}.drop-zone.drag-over{border-color:var(--color-primary);background:var(--color-primary-light)}.matching-pairs-container{grid-template-columns:1fr 1fr;gap:2rem;display:grid}.matching-column{flex-direction:column;gap:.75rem;display:flex}.matching-item{border:1px solid var(--border-color);border-radius:var(--border-radius-sm);background:var(--bg-secondary);cursor:pointer;transition:all var(--transition-fast);justify-content:space-between;align-items:center;padding:.75rem 1rem;font-size:.9rem;font-weight:500;display:flex}.matching-item:hover{background:var(--bg-tertiary)}.matching-item.selected{border-color:var(--color-primary);background:var(--color-primary-light)}.matching-item.paired{border-color:var(--color-success);background:var(--color-success-light)}.file-upload-dragzone{border:2px dashed var(--border-color);border-radius:var(--border-radius-md);background:var(--bg-tertiary);text-align:center;cursor:pointer;transition:all var(--transition-fast);flex-direction:column;justify-content:center;align-items:center;gap:.75rem;padding:2.5rem 1.5rem;display:flex}.file-upload-dragzone:hover{border-color:var(--color-primary);background:var(--bg-secondary)}.file-uploaded-summary{border:1px solid var(--border-color);background:var(--bg-secondary);border-radius:var(--border-radius-sm);align-items:center;gap:.75rem;width:100%;max-width:400px;margin-top:1rem;padding:.75rem 1rem;display:flex}.exam-grid-title{margin-bottom:.75rem;font-size:.95rem;font-weight:700}.exam-grid{grid-template-columns:repeat(5,1fr);gap:.5rem;margin-bottom:1.5rem;display:grid}.exam-grid-btn{aspect-ratio:1;border-radius:var(--border-radius-sm);border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;transition:all var(--transition-fast);justify-content:center;align-items:center;font-size:.9rem;font-weight:600;display:flex}.exam-grid-btn:hover{border-color:var(--color-primary)}.exam-grid-btn.current{border-color:var(--color-primary);background:var(--bg-accent);border-width:2px}.exam-grid-btn.answered{background:var(--color-primary);color:var(--text-inverse);border-color:var(--color-primary)}.exam-grid-btn.flagged{background:var(--color-warning);color:var(--text-inverse);border-color:var(--color-warning)}.exam-legend{border-top:1px solid var(--border-color);flex-direction:column;gap:.5rem;margin-top:auto;padding-top:1.25rem;font-size:.8rem;display:flex}.exam-legend-item{align-items:center;gap:.5rem;display:flex}.exam-legend-dot{border:1px solid var(--border-color);border-radius:4px;width:16px;height:16px}.exam-legend-dot.answered{background:var(--color-primary);border-color:var(--color-primary)}.exam-legend-dot.flagged{background:var(--color-warning);border-color:var(--color-warning)}.exam-legend-dot.unanswered{background:var(--bg-secondary)}.exam-controls-bar{border-top:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:1.25rem 0;display:flex}.ragu-btn{color:var(--color-warning);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:.5rem;font-size:.9rem;font-weight:600;display:flex}.cheat-blocker-overlay{color:#f8fafc;z-index:9999;background:#0f172a;justify-content:center;align-items:center;width:100vw;height:100vh;padding:2rem;animation:.15s ease-out fadeIn;display:flex;position:fixed;top:0;left:0}.cheat-blocker-card{border-radius:var(--border-radius-lg);text-align:center;background:#1e293b;border:2px solid #ef4444;flex-direction:column;align-items:center;gap:1.5rem;max-width:550px;padding:3rem;display:flex;box-shadow:0 25px 50px -12px #00000080}.cheat-blocker-icon{color:#ef4444;animation:1s infinite alternate bounce}@keyframes bounce{0%{transform:translateY(0)}to{transform:translateY(-8px)}}.cheat-blocker-title{text-transform:uppercase;letter-spacing:.5px;font-size:1.5rem;font-weight:800}.cheat-blocker-desc{color:#94a3b8;font-size:1rem;line-height:1.5}.cheat-blocker-count{color:#ef4444;font-size:1.1rem;font-weight:700}