input[type=radio]:focus-visible,input[type=checkbox]:focus-visible{outline:none}.is-editing{outline:3px solid #10b981!important;outline-offset:1px!important}input:not(.is-editing):not([type=radio]):not([type=checkbox]):not(#quiz-answer-input):focus-visible,textarea:not(.is-editing):focus-visible{caret-color:transparent!important}button:not(.btn-circle),.btn-primary,.btn-outline,.btn-large,.btn-small{border-radius:6px!important}.toggle-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;gap:16px}.toggle-row .form-label{margin-bottom:0;font-size:.95rem}.toggle-switch{position:relative;display:inline-block;width:48px;height:26px}.toggle-switch input{opacity:0;width:0;height:0;position:absolute}.toggle-switch:focus-within{outline:3px solid #a855f7!important;outline-offset:1px;border-radius:20px}.toggle-switch .slider{position:absolute;cursor:pointer;inset:0;background-color:#cbd5e1;transition:.3s;border-radius:26px}.toggle-switch .slider:before{position:absolute;content:"";height:20px;width:20px;left:3px;bottom:3px;background-color:#fff;transition:.3s;border-radius:50%;box-shadow:0 2px 4px #0000001a}.toggle-switch input:checked+.slider{background-color:var(--c-primary-from)}.toggle-switch input:checked+.slider:before{transform:translate(22px)}.footer-hover-link{color:#9ca3af!important;transition:color .2s ease-in-out}.footer-hover-link:hover{color:var(--c-text)!important}.h-44{height:44px!important;display:inline-flex;align-items:center;justify-content:center}.btn-circle{width:44px!important;height:44px!important;border-radius:50%!important;padding:0!important;font-size:1.2rem!important;display:inline-flex;justify-content:center;align-items:center}.btn-circle.is-speech-active{background:#a855f72e!important;border-color:var(--c-primary-from)!important;color:var(--c-primary-from)!important;box-shadow:0 0 0 2px #a855f759}*{box-sizing:border-box;margin:0;padding:0}:root{--c-primary-from: #f97316;--c-primary-to: #a855f7;--c-accent-blue: #38bdf8;--c-accent-green: #34d399;--c-accent-pink: #f472b6;--c-bg: #fdf4ff;--c-bg-grad: linear-gradient(135deg, #fff7ed 0%, #fdf4ff 50%, #eff6ff 100%);--c-text: #1e1b4b;--c-text-muted: #6b7280;--c-card-bg: rgba(255, 255, 255, .75);--c-card-border: rgba(255, 255, 255, .9);--c-card-shadow: 0 8px 32px rgba(168, 85, 247, .08), 0 2px 8px rgba(249, 115, 22, .06);--font-family-base: "M PLUS U", sans-serif;--font-family-mono: "JetBrains Mono", "Fira Code", Consolas, Monaco, monospace;--col-q-width: 400px;--col-a-width: 180px;--col-c-width: 140px;--col-m-width: 44px;--col-f-width: 80px;--col-d-width: 70px;--col-s-width: 50px;--col-index-width: 40px;--col-check-width: 48px;--c-input-bg: rgba(255, 255, 255, .8);--c-input-border: rgba(168, 85, 247, .2)}body{font-family:var(--font-family-base);font-weight:300;color:var(--c-text);background-color:var(--c-bg);overflow-x:hidden;min-height:100vh}.bg-gradient{position:fixed;inset:0;z-index:-3;background:var(--c-bg-grad)}.bg-orb-1,.bg-orb-2,.bg-orb-3{position:fixed;border-radius:50%;filter:blur(80px);z-index:-2;opacity:.3;pointer-events:none}.bg-orb-1{top:-10%;left:-5%;width:40vw;height:40vw;background:radial-gradient(circle,#fdba74 0%,transparent 70%);animation:orbFloat 25s infinite alternate ease-in-out}.bg-orb-2{bottom:-10%;right:-5%;width:45vw;height:45vw;background:radial-gradient(circle,#c084fc 0%,transparent 70%);animation:orbFloat 35s infinite alternate-reverse ease-in-out}.bg-orb-3{top:40%;left:30%;width:30vw;height:30vw;background:radial-gradient(circle,#67e8f9 0%,transparent 70%);animation:orbFloat 45s 5s infinite alternate ease-in-out}@keyframes orbFloat{0%{transform:translate(0) scale(1)}to{transform:translate(5%,8%) scale(1.1)}}.app-container{width:100%;margin:0 auto;padding:8px;box-sizing:border-box;display:flex;flex-direction:column;height:100vh;overflow:hidden;justify-content:flex-start}#screen-home{padding:16px!important;overflow:hidden!important}body{overflow:hidden;margin:0}.itunes-layout{display:flex;flex-direction:column;gap:24px;margin-top:0;width:100%;flex:1;min-height:0;overflow:hidden}.itunes-sidebar{width:100%;flex-shrink:0;position:relative;min-height:0;min-width:0;overflow:hidden}@media(max-width:799px){.itunes-layout{gap:16px}.itunes-sidebar{flex:0 0 auto;max-height:min(220px,32vh);overflow:hidden}}.itunes-main{flex:1;min-width:0;min-height:0;display:flex;flex-direction:column;overflow:hidden}.itunes-main>template{display:none}#manage-form-container{display:flex;flex-direction:column;flex:1;min-height:0;min-width:0;overflow:hidden;box-sizing:border-box}#manage-form-container>.manage-form-header{flex-shrink:0}#manage-form-container>.question-list-container{margin-top:0}@media(min-width:800px){.itunes-layout{flex-direction:row;align-items:stretch}.itunes-sidebar{width:340px;flex:0 0 340px;min-width:280px;position:sticky}.app-container{justify-content:center}}.playlist-item{display:flex;align-items:center;justify-content:space-between;padding:8px;border-radius:6px;cursor:pointer;background-color:#fff;transition:all .15s ease;font-size:.9rem!important;position:relative;min-width:0}.playlist-item span,.playlist-item-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0}.playlist-item-name{cursor:default;user-select:none}.playlist-item input[type=radio]{display:none}.playlist-item:hover{background:#a855f71a}.playlist-item.active{background:#a855f733;font-weight:600}.playlist-item[draggable=true]{cursor:grab}.playlist-item-drag-handle{cursor:grab;flex:1;min-width:0}.playlist-item-drag-handle:active{cursor:grabbing}.playlist-item.is-dragging-playlist{opacity:.45}.playlist-item.is-dragging-playlist .hover-action-btn{opacity:0;pointer-events:none}#unified-problem-sets{display:flex;flex-direction:column;gap:8px;min-width:0}.playlist-drop-placeholder{height:36px;border-radius:6px;background:#a855f714;border:2px dashed rgba(168,85,247,.35);box-sizing:border-box;flex-shrink:0;transition:opacity .15s ease;pointer-events:none}.playlist-item.drag-over-playlist{background:#a855f726}.quiz-container-inner{margin:0 auto;width:100%;display:flex;flex-direction:column;flex:1;min-height:0;height:100%;overflow:hidden}.app-header{display:flex;justify-content:flex-start;align-items:baseline;gap:16px;margin-bottom:4px;flex-shrink:0}.logo{font-family:Molle,cursive;font-style:italic;font-weight:400;font-size:2rem;letter-spacing:-1px;background:linear-gradient(to right,var(--c-primary-from),var(--c-primary-to));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:0;padding-right:4px}.subtitle{font-size:.85rem;letter-spacing:1px;color:var(--c-text-muted);text-transform:uppercase;font-weight:400;text-align:left;margin-bottom:0}.card-glass{background:#fff;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--c-card-border);border-radius:12px;padding:36px;box-shadow:var(--c-card-shadow)}.card-inset{background:#fff9;border:1px solid rgba(168,85,247,.12);border-radius:8px;padding:20px}.input-styled{width:100%;background:var(--c-input-bg);border:1.5px solid var(--c-input-border);color:var(--c-text);padding:11px 15px;border-radius:6px;font-size:.95rem;font-family:inherit;outline:none;transition:all .25s ease}.input-styled:focus,.input-styled:focus-visible{border-color:#a855f7;outline:none!important;box-shadow:inset 0 0 0 2px #a855f780}.input-styled::placeholder{font-size:.8rem;color:#9ca3af}select.input-styled{appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%239ca3af'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-right:40px;height:44px}.screen{display:none}.screen.active{display:flex;flex-direction:column;flex:1;min-height:0;overflow-y:auto;box-sizing:border-box;animation:fadeInUp .4s cubic-bezier(.16,1,.3,1) forwards}@keyframes fadeInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}*:focus-visible{outline:2.5px solid #a855f7;outline-offset:-2.5px;border-radius:4px}input:focus-visible,textarea:focus-visible,select:focus-visible,.tag-input-field:focus-visible{outline:none!important}select:focus-visible{border-radius:6px}input[type=checkbox]:focus-visible{outline-offset:2px}.settings-grid{display:grid;gap:24px 64px}@media(min-width:600px){.settings-grid{grid-template-columns:1fr 1fr}}.radio-group-modern{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}.input-no-spin::-webkit-outer-spin-button,.input-no-spin::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.input-no-spin{-moz-appearance:textfield}.number-input-modern-wrapper{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:6px}.number-controls{display:flex;gap:6px}.number-ctrl-btn{padding:6px 12px!important;height:38px!important;font-size:.85rem}.btn-circle{border-radius:50%!important;width:38px!important;height:38px!important;padding:0!important;display:inline-flex!important;align-items:center!important;justify-content:center!important}.btn-circle i,.btn-circle span{line-height:1;margin:0;display:flex}.radio-btn-modern{display:inline-flex;align-items:center;justify-content:center;cursor:pointer;padding:8px 14px;background:#fff7ed;border:1.5px solid rgba(249,115,22,.4);border-radius:8px;font-size:.85rem;font-weight:400;color:#9a3412;transition:all .2s cubic-bezier(.16,1,.3,1);user-select:none}.radio-btn-modern:hover{background:#ffedd5;border-color:#f97316}.radio-btn-modern input[type=radio]{opacity:0;width:0;height:0;position:absolute}.radio-btn-modern:focus-within,.radio-btn-modern:focus-visible{outline:3px solid #a855f7!important;outline-offset:1px;border-radius:6px}.radio-btn-modern:has(input[type=radio]:checked){background:#f97316;color:#fff;border-color:transparent;box-shadow:inset 0 2px 4px #00000026,0 2px 8px #f9731666;transform:translateY(1px)}.btn-primary{background:linear-gradient(135deg,var(--c-primary-from) 0%,var(--c-primary-to) 100%);color:#fff;border:none;font-size:.95rem;font-weight:600;padding:12px 26px;border-radius:8px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .25s cubic-bezier(.16,1,.3,1);font-family:inherit;white-space:nowrap;flex-shrink:0}.btn-primary:hover{filter:brightness(1.05)}.btn-primary:active{filter:brightness(.95)}.btn-primary:disabled{background:#f3f4f6;color:#9ca3af;transform:none;box-shadow:none;cursor:not-allowed;filter:none}.btn-outline{background:#f3e8ff;color:#6b21a8;border:1.5px solid #d8b4fe;font-size:.95rem;font-weight:400;padding:12px 26px;border-radius:4px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .25s cubic-bezier(.16,1,.3,1);font-family:inherit;white-space:nowrap;flex-shrink:0}.btn-outline:hover{background:#e9d5ff;border-color:#c084fc}.btn-outline:active{background:#d8b4fe}.btn-outline:disabled{background:#f3f4f6;color:#9ca3af;border-color:#d1d5db;transform:none;box-shadow:none;cursor:not-allowed}.btn-primary.active-choice{box-shadow:0 0 0 3px #a855f759}.btn-outline.active-choice{border-color:#a855f7;background:#a855f714;box-shadow:0 0 0 3px #a855f733}.btn-danger:hover{background:#ef444414!important;border-color:#ef4444!important;color:#dc2626!important}.input-group-merged{position:relative;display:flex;flex:1;width:100%}.input-group-merged>.input-styled,.input-group-merged>.tag-input-container,.input-group-merged>.tagify{width:100%;padding-right:65px}.input-group-merged .btn-merged{position:absolute;right:5px;top:5px;white-space:nowrap;padding:4px 12px;min-height:unset;height:32px;font-size:.8rem;z-index:10}.sr-only-radio{position:absolute;opacity:0;width:0;height:0;margin:0;padding:0;pointer-events:none}.media-icon-btn{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:8px;border:1px solid var(--c-border);background:#fff;color:var(--c-text-muted);font-size:1.3rem;transition:all .2s}label:hover .media-icon-btn{background:#f3f4f6;color:var(--c-text)}label:has(input[type=radio]:checked) .media-icon-btn{border-color:var(--c-primary);background:#a855f733;color:var(--c-primary);box-shadow:0 0 0 2px #a855f74d}#form-media-type-group label:focus-within .media-icon-btn{outline:3px solid #a855f7;outline-offset:1px}.btn-large{width:100%;padding:15px clamp(8px,3vw,28px);font-size:clamp(.75rem,4vw,1.05rem)}.btn-small{padding:7px 14px;font-size:.82rem;border-radius:4px}.button-group{display:flex;gap:12px;margin-top:20px}.section-title{font-size:1.35rem;font-weight:600;margin-bottom:20px;color:var(--c-text)}.form-group{margin-bottom:16px}.form-group.half{flex:1}.form-label{display:block;font-size:.82rem;font-weight:400;margin-bottom:6px;color:var(--c-text-muted);letter-spacing:.5px}.batch-dates-fields{display:flex;flex-direction:column;gap:0}.batch-dates-labels{display:flex;flex-wrap:wrap;gap:12px}.batch-dates-labels .form-label{flex:1 1 140px;margin-bottom:6px}.batch-dates-inputs{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.batch-dates-inputs .input-styled{flex:1 1 140px}.divider{border:0;height:1px;background:linear-gradient(to right,transparent,rgba(168,85,247,.2),transparent);margin:18px 0}.filter-tags-container{margin-bottom:16px;padding-left:12px;display:flex;align-items:flex-start;gap:8px;flex-wrap:wrap}.filter-tags-label{font-size:.85rem;color:var(--c-text-muted);margin-top:4px;flex-shrink:0}.filter-tags-list{flex:1 1 200px}@media(max-width:480px){.filter-tags-container{flex-direction:column}.filter-tags-label{margin-top:0;margin-bottom:4px}.filter-tags-list{margin-left:0;width:100%;flex:0 0 auto}}.tag-input-container{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:6px 12px;min-height:44px;background:#ffffffb3;border:1px solid var(--c-border);border-radius:8px;transition:all .2s ease;box-shadow:inset 0 2px 4px #00000005;cursor:text}.tag-input-container:focus-within{outline:none;border-color:#a855f7;background:#fff;box-shadow:inset 0 0 0 2px #a855f780}.tag-chip{display:inline-flex;align-items:center;gap:4px;background:#38bdf826;color:#0369a1;border-radius:6px;padding:2px 8px;font-size:.85rem;font-weight:400}.tag-chip-remove{cursor:pointer;display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:50%;background:#0369a11a;color:#0369a1;font-size:.7rem;line-height:1;transition:all .15s ease}.tag-chip-remove:hover{background:#ef444426;color:#ef4444}.tag-chip-checkbox{display:inline-flex;align-items:center;padding:2px 8px;background:#f1f5f9;color:#64748b;border-radius:6px;font-size:.7rem;cursor:pointer;transition:all .2s;user-select:none;border:1px solid transparent}.tag-chip-checkbox input[type=checkbox]{display:none}.tag-chip-checkbox:has(input[type=checkbox]:checked){background:#c5edff;color:#0369a1;border-color:#38bdf866}.tag-chip-clear{display:inline-flex;align-items:center;padding:2px 8px;background:#ef44441a;color:#ef4444;border-radius:6px;font-size:.7rem;cursor:pointer;transition:all .2s;border:1px solid rgba(239,68,68,.2)}.tag-chip-clear:hover,.tag-chip-clear:active{background:#ffe8e8}.tag-input-field{flex:1 1 60px;min-width:60px;border:none;background:transparent;font-family:Quicksand,M PLUS U,sans-serif;font-size:1rem;color:var(--c-text);padding:4px 0;outline:none;box-shadow:none}.tag-input-field:focus,.tag-input-field:focus-visible{outline:none!important;box-shadow:none}.tag-input-field::placeholder{color:var(--c-text-muted);opacity:.6}.multi-text-groups-list{display:flex;flex-direction:column;gap:10px}.multi-text-group-row{display:grid;grid-template-columns:minmax(2.5rem,auto) 1fr;gap:10px;align-items:center}.multi-text-group-label{font-weight:600;font-size:.95rem;color:var(--c-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.multi-text-group-valid-input{min-width:0}.tag-grid{display:flex;flex-wrap:wrap;gap:8px}.tag-checkbox-wrapper{display:inline-flex;align-items:center;justify-content:center;width:fit-content;cursor:pointer;padding:4px 10px;border-radius:6px;border:1.5px solid rgba(56,189,248,.3);background:#ffffffb3;color:#0369a1;transition:all .2s ease;font-size:.75rem;font-weight:400}.tag-checkbox-wrapper:hover{border-color:var(--c-accent-blue);background:#38bdf80d}.tag-checkbox-wrapper:has(input[type=checkbox]:checked){background:linear-gradient(135deg,#38bdf8,#0284c7);color:#fff;border-color:transparent}.tag-clear-btn{display:inline-flex;align-items:center;justify-content:center;width:fit-content;cursor:pointer;padding:4px 10px;border-radius:6px;border:1.5px solid rgba(239,68,68,.4);background:#ffffffb3;color:#b91c1c;transition:all .2s ease;font-size:.75rem;font-weight:400;outline:none;font-family:inherit}.tag-clear-btn:focus-visible{outline:3px solid #a855f7!important;outline-offset:1px}.tag-clear-btn:hover{background:#fee2e2;border-color:#ef4444}.tag-checkbox-wrapper input[type=checkbox]{opacity:0;width:0;height:0;position:absolute}.tag-checkbox-wrapper:focus-within{outline:3px solid #a855f7!important;outline-offset:1px;border-radius:6px}.tag-checkbox-label{pointer-events:none;color:inherit;font-size:inherit;font-weight:inherit}.tag-empty-text{color:var(--c-text-muted);font-size:.85rem;grid-column:1 / -1}.file-upload-area{margin-top:10px;display:flex;align-items:center;gap:10px;font-size:.8rem;color:var(--c-text-muted)}.file-name-hint{color:#a855f7;font-style:italic}.quiz-top-actions{display:flex;justify-content:flex-start;margin-bottom:14px}.progress-track{width:100%;height:7px;background:#a855f71a;border-radius:12px;overflow:hidden}.progress-fill{height:100%;width:0%;background:linear-gradient(to right,var(--c-primary-from),var(--c-primary-to));border-radius:12px;transition:width .5s ease}.progress-text-row{display:flex;justify-content:space-between;align-items:center;margin-top:7px;font-size:.78rem;color:var(--c-text-muted);gap:8px;flex-wrap:wrap}.progress-text-row-left{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.progress-text-row-right{display:flex;gap:12px;align-items:center;margin-left:auto}.quiz-stats-row{display:flex;justify-content:center;gap:12px;margin-top:8px;font-size:.75rem}.stat-badge{padding:3px 8px;border-radius:6px;font-weight:400}.stat-goal{background:#a855f71a;color:#9333ea;border:1px solid rgba(168,85,247,.3)}.stat-correct{background:#d1fae5;color:#065f46;border:1px solid #6ee7b7}.stat-incorrect{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}.round-badge{background:linear-gradient(135deg,#fde68a,#fca5a5);color:#92400e;padding:1px 10px;border-radius:12px;font-weight:600;font-size:.75rem}.round-mode-badge{background:#a855f71a;color:#7c3aed;padding:1px 10px;border-radius:12px;font-weight:500;font-size:.72rem;border:1px solid rgba(168,85,247,.25);white-space:nowrap}.round-mode-badge--all{background:#3b82f61a;color:#1d4ed8;border-color:#3b82f64d}.round-mode-badge--incorrect{background:#f59e0b1f;color:#b45309;border-color:#f59e0b59}.card-3d-wrapper{perspective:1000px;margin:22px 0}.card-3d{width:100%;min-height:210px;display:grid;transform-style:preserve-3d;transition:transform .6s cubic-bezier(.165,.84,.44,1)}.screen-quiz.active{overflow:hidden!important;min-height:0}.screen-quiz .card-3d{min-height:0}.card-3d.flipped{transform:rotateY(180deg)}.card-3d-side{grid-area:1 / 1;width:100%;backface-visibility:hidden;border-radius:10px;padding:16px;display:flex;flex-direction:column;justify-content:flex-start;align-items:center;text-align:center;background:#fffc;border:2px solid rgba(168,85,247,.15);box-shadow:0 4px 20px #a855f714}.card-front{z-index:2;transform:rotateY(0)}.card-tag{font-size:.7rem;background:linear-gradient(135deg,#fde68a,#fca5a5);color:#92400e;padding:3px 12px;border-radius:12px;margin-bottom:12px;font-weight:600;letter-spacing:.5px;word-break:break-word;overflow-wrap:break-word;max-width:100%}.question-text{font-size:1.2rem;font-weight:400;line-height:1.5;min-height:calc(1.35rem * 1.5);color:var(--c-text);word-break:break-word;overflow-wrap:break-word;white-space:pre-wrap}.typewriter-hint{color:#9ca3af;font-size:.85rem;margin-top:16px;min-height:20px}.btn-reveal-small{display:inline-block;background:#a855f71a;color:#9333ea;border:1px solid rgba(168,85,247,.3);font-size:.85rem;padding:8px 16px;border-radius:6px;cursor:pointer;transition:all .2s}.btn-reveal-small:hover{background:#a855f733}.quiz-input-area{margin-top:8px}.quiz-answer-form-layout{display:flex;gap:8px;align-items:stretch}.quiz-answer-form-layout .quiz-answer-box{flex:1}.btn-pass{flex-shrink:0;min-width:80px}.quiz-answer-box{padding:14px 18px;font-size:1.05rem;text-align:center;border-radius:8px;border-color:#a855f74d}.reveal-remaining-container{margin-top:12px;text-align:center;min-height:44px;width:100%}#quiz-result-feedback{min-height:0}.feedback-area{margin-top:18px;padding:20px;border-radius:12px;background:#ffffffd9;border:1px solid rgba(168,85,247,.2);box-shadow:0 4px 20px #00000008;text-align:center;display:flex;flex-direction:column;align-items:center;animation:slideInUp .3s cubic-bezier(.16,1,.3,1) forwards}.feedback-area--in-card{margin-top:16px;padding:16px 0 0;width:100%;border-radius:0;background:transparent;border:none;border-top:1px solid rgba(168,85,247,.15);box-shadow:none}.feedback-explanation{display:none;font-size:.85rem;color:var(--c-text-muted);background:#00000008;padding:8px 12px;border-radius:6px;margin-top:8px;margin-bottom:12px;max-width:100%;text-align:left;word-break:break-word;line-height:1.5;width:100%;box-sizing:border-box}.feedback-content-wrapper{width:100%;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center}@keyframes slideInUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.feedback-badge{font-size:1.25rem;font-weight:600;padding:4px 18px;border-radius:12px;margin-bottom:16px}.q-list-group{border:1px solid rgba(0,0,0,.06);border-radius:8px;background:#fafafa;overflow:hidden}.q-list-group-summary{padding:12px 16px;background:#f3f4f6;cursor:pointer;user-select:none;list-style:none;display:flex;align-items:center;gap:8px;border-bottom:1px solid transparent;transition:background-color .2s}.q-list-group-summary:hover{background:#e5e7eb}.q-list-group[open] .q-list-group-summary{border-bottom:1px solid rgba(0,0,0,.08)}.q-list-group-summary::-webkit-details-marker{display:none}.q-list-group-summary:after{content:"▶";font-size:.8rem;color:var(--c-text-muted);transition:transform .2s;margin-left:auto}.q-list-group[open] .q-list-group-summary:after{transform:rotate(90deg)}.q-list-group-content{padding:12px;display:flex;flex-direction:column;gap:8px}.feedback-badge.correct{background:linear-gradient(135deg,#d1fae5,#a7f3d0);color:#065f46;border:2px solid #6ee7b7}.feedback-badge.incorrect{background:linear-gradient(135deg,#fee2e2,#fecaca);color:#991b1b;border:2px solid #fca5a5}.feedback-choice-row{display:flex;gap:10px;justify-content:center;width:100%}.correct-reveal-box{display:flex;flex-direction:column;align-items:center;gap:12px;width:100%;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.correct-answer-display{font-size:.95rem;color:var(--c-text-muted);word-break:break-word;overflow-wrap:break-word;white-space:pre-wrap;width:100%}.correct-answer-display strong{color:var(--c-text);font-size:1.2rem;background:linear-gradient(to right,var(--c-primary-from),var(--c-primary-to));-webkit-background-clip:text;-webkit-text-fill-color:transparent;display:inline-block;max-width:100%;word-break:break-word;overflow-wrap:break-word;white-space:pre-wrap}.manage-desc{font-size:.83rem;color:var(--c-text-muted);line-height:1.5;margin-bottom:18px}.manage-form{margin-bottom:22px}.manage-form h3{font-size:1rem;margin-bottom:12px;color:var(--c-text)}.form-row{display:flex;gap:12px;margin-bottom:12px}.question-list-container{margin-top:22px}.list-title{font-size:1rem;margin-bottom:10px;color:var(--c-text)}.questions-list{display:flex;flex-direction:column;gap:12px}.empty-list-text{color:var(--c-text-muted);text-align:center;padding:30px 0;font-size:.85rem}.tag-filter-btn{background:var(--c-bg-tertiary);border:1px solid var(--c-border);color:var(--c-text);font-size:.75rem;padding:4px 10px;border-radius:50px;cursor:pointer;transition:all .2s}.tag-filter-btn:hover{background:var(--c-border)}.tag-filter-btn.active{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}.frame-list-wrapper{border:1.5px solid rgba(168,85,247,.15);border-radius:8px;background:#f5f5ff;padding:0}.frame-list-wrapper::-webkit-scrollbar{width:12px;height:12px}.frame-list-wrapper::-webkit-scrollbar-track{background:#a855f70a;border-radius:4px}.frame-list-wrapper::-webkit-scrollbar-thumb{background:#a855f733;border-radius:4px}.frame-list-wrapper::-webkit-scrollbar-thumb:hover{background:#a855f759}.question-list-header{display:flex;flex-wrap:nowrap;justify-content:flex-start;align-items:stretch;gap:0;padding:0;margin-left:0;position:sticky;top:0;z-index:20;background:#fffffff2;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:2px solid rgba(168,85,247,.3);border-top-left-radius:6px;border-top-right-radius:6px;color:var(--c-text-muted);font-size:.85rem;font-weight:600}.question-list-header>div{border-right:none}.question-list-header .q-col-checkbox input{width:14px;height:14px;cursor:pointer}.frame-list{display:flex;flex-direction:column;gap:6px;overflow:visible;padding-right:8px;box-sizing:border-box}.frame-list>*{flex-shrink:0;min-width:max-content}.frame-list>.question-item{width:max-content;max-width:max-content}.question-item{display:flex;flex-wrap:nowrap;justify-content:flex-start;align-items:stretch;gap:0;transition:all .15s ease;padding:0;position:relative;margin-left:0;border:none;background:transparent;box-shadow:none;cursor:pointer;flex-shrink:0;min-height:38px}.question-item>div:not(.q-col-index):not(.q-row-actions):not(.resize-handle){background:#fff;border-top:1.5px solid rgba(168,85,247,.2);border-bottom:1.5px solid rgba(168,85,247,.2);transition:all .15s ease}.question-item:not(.selected):hover>div:not(.q-col-index):not(.q-row-actions):not(.resize-handle){background:#a855f70d}.question-item:not(.selected):active>div:not(.q-col-index):not(.q-row-actions):not(.resize-handle){background:#a855f71a}.question-item.selected>div:not(.q-col-index):not(.q-row-actions):not(.resize-handle){background:#a855f740;border-top-color:var(--c-primary);border-bottom-color:var(--c-primary)}.question-item.selected .q-col-index{background:#ede9fefa;color:var(--c-primary)}.question-item.drag-over-top{margin-top:40px}.question-item.drag-over-top:before{content:"";position:absolute;top:-40px;left:0;right:0;height:40px;background:transparent;z-index:1}.question-item.drag-over-bottom{margin-bottom:40px}.question-item.drag-over-bottom:before{content:"";position:absolute;bottom:-40px;left:0;right:0;height:40px;background:transparent;z-index:1}.question-item.is-dragging{background:transparent;box-shadow:none}.question-item.is-dragging>div:not(.q-col-index):not(.q-row-actions):not(.resize-handle){background:#f8fafc;border-color:#e2e8f0}.question-item.is-dragging *{opacity:.5}.q-col-index{background:#f5f5ff;display:flex;align-items:center;justify-content:center;flex:0 0 var(--col-index-width);font-size:.8rem;color:#a855f7;font-weight:600;position:sticky;left:0;box-sizing:border-box}.question-item .q-col-index{z-index:2;transition:color .15s ease,background .15s ease}.question-list-header .q-col-index{position:sticky;left:0;background:#fffffffa;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:13;color:inherit;font-size:inherit;font-weight:inherit}.q-col-checkbox{display:flex;align-items:center;justify-content:center;gap:8px;flex:0 0 var(--col-check-width);padding:0;border-right:1px solid rgba(168,85,247,.2);margin-left:8px}.question-item .q-col-checkbox{border-left:1.5px solid rgba(168,85,247,.2);border-top-left-radius:6px;border-bottom-left-radius:6px}.question-item.selected .q-col-checkbox{border-left-color:var(--c-primary)}.q-col-checkbox input{width:14px;height:14px;cursor:pointer}.q-col-question{flex:0 0 var(--col-q-width);padding:0 12px;min-width:150px;font-size:.9rem;color:var(--c-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-right:1px solid rgba(168,85,247,.2);display:flex;align-items:center}.q-text-slot,.q-ans-slot,.q-cat-slot,.q-media-slot,.q-format-slot,.q-diff-slot,.q-star-slot{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;width:100%}.q-col-answer{flex:0 0 var(--col-a-width);padding:0 12px;min-width:100px;font-size:.85rem;color:var(--c-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-right:1px solid rgba(168,85,247,.2);display:flex;align-items:center}.q-col-category{flex:0 0 var(--col-c-width);padding:0 12px;min-width:80px;font-size:.85rem;color:var(--c-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-right:1px solid rgba(168,85,247,.2);display:flex;align-items:center}.q-col-media{flex:0 0 var(--col-m-width);padding:0 12px;min-width:60px;font-size:.85rem;color:var(--c-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-right:1px solid rgba(168,85,247,.2);display:flex;align-items:center}.q-col-format{flex:0 0 var(--col-f-width);padding:0 12px;min-width:60px;font-size:.85rem;color:var(--c-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-right:1px solid rgba(168,85,247,.2);display:flex;align-items:center}.q-col-diff{flex:0 0 var(--col-d-width);padding:0 12px;min-width:60px;font-size:.85rem;color:var(--c-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-right:1px solid rgba(168,85,247,.2);display:flex;align-items:center}.q-col-star{flex:0 0 var(--col-s-width);padding:0 12px;min-width:50px;font-size:.85rem;color:var(--c-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-right:1px solid rgba(168,85,247,.2);text-align:center;display:flex;align-items:center;justify-content:center;position:relative;z-index:16}.q-star-slot{cursor:pointer;pointer-events:auto}.question-item>[data-col]:has(+.q-row-actions){border-right:1.5px solid rgba(168,85,247,.2);border-top-right-radius:6px;border-bottom-right-radius:6px}.question-item.selected>[data-col]:has(+.q-row-actions){border-right-color:var(--c-primary)}.resize-handle{flex:0 0 5px;width:5px;cursor:col-resize;background-color:#a855f733;transition:background-color .2s;height:auto;min-height:20px;z-index:10;margin:0 -2.5px}.question-list-header .resize-handle[data-target=index]{position:sticky;left:calc(var(--col-index-width) - 2.5px);z-index:14;flex-shrink:0}.resize-handle:hover,.resize-handle.active{background-color:var(--c-primary)}.sortable-col{cursor:pointer;user-select:none;transition:color .2s;display:flex;align-items:center;justify-content:space-between}.sortable-col:hover{color:var(--c-primary)}.sort-icon{font-size:.75rem;color:var(--c-primary);opacity:.8}.question-list-header .sortable-col.disabled{cursor:default;color:var(--c-text-muted)}.question-list-header .sortable-col.disabled:hover{color:var(--c-text-muted)}.badge-tag{font-size:.68rem;background:linear-gradient(135deg,#ede9fe,#fce7f3);color:#6d28d9;border:1px solid rgba(168,85,247,.2);padding:1px 7px;border-radius:6px;font-weight:400;display:inline-block;margin-right:2px}.q-col-actions{display:none}.q-row-actions{position:sticky;right:8px;flex:0 0 0;width:0;min-width:0;overflow:visible;display:flex;align-items:center;justify-content:flex-end;padding:0;z-index:15;align-self:stretch;opacity:0;pointer-events:none;transition:opacity .15s ease;background:transparent;isolation:isolate}.question-item:hover .q-row-actions,.question-item.selected .q-row-actions,.question-item .q-row-actions:focus-within{opacity:1;pointer-events:auto}.question-item .q-row-actions .hover-action-group{position:relative;z-index:1;padding-right:8px}.question-item .q-row-actions .hover-action-group:before{content:"";position:absolute;inset:0}.question-item .q-row-actions .hover-action-btn{position:relative;z-index:1}.hover-action-group{display:flex;align-items:center;gap:6px;flex-shrink:0}.hover-action-btn{border-radius:50%;width:24px;height:24px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:14px;transition:all .2s;flex-shrink:0;padding:0;border:1px solid transparent}.hover-action-btn--edit,.hover-action-btn--duplicate{background-color:#fef2f2;border-color:#cbacec;color:var(--c-primary-from)}.hover-action-btn--delete{background-color:#fef2f2;border-color:#fca5a5;color:#ef4444}.hover-action-btn--edit:hover,.hover-action-btn--duplicate:hover{border-color:#a875dd;color:var(--c-primary-from);background-color:#faf6ff}.hover-action-btn--delete:hover{border-color:#ef4444;color:#ef4444;background-color:#fee2e2}.playlist-item .hover-action-group{margin-left:8px;flex-shrink:0}.playlist-item .hover-action-btn{opacity:0;pointer-events:none}.playlist-item:hover .hover-action-btn,.playlist-item:focus-within .hover-action-btn{opacity:1;pointer-events:auto}@media(max-width:480px){.feedback-choice-row{flex-direction:column;width:100%}.feedback-choice-row>button{width:100%}}.manage-actions{display:flex;flex-direction:column;gap:10px;margin-top:22px}.screen-clear.active{overflow:hidden!important;min-height:0;flex:1;display:flex;flex-direction:column}.clear-title{font-size:1.9rem;font-weight:600;background:linear-gradient(to right,#f97316,#a855f7);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:10px;text-align:center}.clear-desc{font-size:.95rem;color:var(--c-text-muted);line-height:1.5;margin-bottom:0;text-align:center}.clear-icon{font-size:4.5rem;animation:crownBounce 2.5s infinite ease-in-out;margin-bottom:10px;display:inline-block}@keyframes crownBounce{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-12px) rotate(5deg)}}.statistics-card h3{font-size:.85rem;color:var(--c-text-muted);text-align:center;margin-bottom:14px}.stat-val{font-size:2.4rem;font-weight:600;background:linear-gradient(135deg,var(--c-primary-from),var(--c-primary-to));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.stat-label{font-size:.72rem;color:var(--c-text-muted);margin-top:3px}.modal-overlay{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center}.modal-overlay:before{content:"";position:absolute;inset:0;background:#0006;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:-1}.modal-content{width:90%;max-width:400px;padding:24px;animation:modalFadeIn .2s ease-out forwards}.modal-small{max-width:450px!important;padding:24px!important}.modal-large{width:calc(100vw - 64px)!important;max-width:1100px!important;height:calc(100vh - 172px)!important;max-height:800px!important;display:flex!important;flex-direction:column;padding:0!important;overflow:hidden}.modal-large>.modal-header,.modal-large>h3{padding:16px 24px 8px;flex-shrink:0;z-index:2}.modal-large>.modal-body,.modal-large>.form-group,.modal-large>div:not(.modal-header):not(.button-group):not(.modal-actions){padding:16px;margin:0 8px;background:#f3f4f6;border-radius:8px;flex:1;overflow-y:auto;min-height:0}.modal-large>.button-group,.modal-large>.modal-actions{padding:12px 24px 16px;flex-shrink:0;margin-top:0;z-index:2}@keyframes modalFadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:none}}.hide{display:none!important}.invisible{visibility:hidden!important}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:#a855f70a;border-radius:4px}::-webkit-scrollbar-thumb{background:#a855f733;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#a855f759}.problem-set-panels{display:flex;gap:16px;align-items:stretch}@media(max-width:600px){.problem-set-panels{flex-direction:column}}.problem-set-panel{flex:1;display:flex;flex-direction:column;padding:20px}.panel-title{margin-top:0;margin-bottom:14px;font-size:1.05rem;color:var(--c-text);font-weight:400}.radio-list{display:flex;flex-direction:column;gap:12px;flex:1}.radio-item{display:flex;align-items:center;gap:8px;font-size:.95rem;color:var(--c-text);cursor:pointer}.radio-item span{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.radio-item input[type=radio]{appearance:none;-webkit-appearance:none;width:18px;height:18px;flex-shrink:0;border:2px solid var(--c-primary-from);border-radius:50%;margin:0;position:relative;cursor:pointer;background:#fff;transition:outline .2s}.radio-item input[type=radio]:focus-visible{outline:3px solid rgba(168,85,247,.4);outline-offset:2px}.radio-item input[type=radio]:checked:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:10px;height:10px;background:var(--c-primary-from);border-radius:50%}@media(max-height:850px){.app-container{padding:16px}.app-header{margin-bottom:16px}.logo{font-size:2.2rem;margin-bottom:0}.card-glass{padding:20px}.quiz-progress-bar{margin-bottom:12px}.screen-quiz .quiz-card-area{margin:8px 0}.screen-quiz .card-3d{min-height:0}.card-3d-wrapper{margin:12px 0}.card-3d{min-height:140px}.card-3d-side{padding:16px}.question-text{font-size:1.2rem}.typewriter-hint{margin-top:8px}.btn-reveal-small{font-size:.8rem;padding:6px 12px}.quiz-answer-box{padding:10px 14px;font-size:1rem}.feedback-area{margin-top:12px;padding:12px;gap:8px}.feedback-badge{font-size:1.1rem;padding:4px 14px}.feedback-choice-row{margin-top:2px}}.toast-notification{position:fixed;top:24px;left:50%;transform:translate(-50%) translateY(-20px);background:linear-gradient(135deg,var(--c-primary-from),var(--c-primary-to));color:#fff;padding:12px 24px;border-radius:8px;font-weight:600;box-shadow:0 4px 12px #a855f766;z-index:10000;opacity:0;transition:all .3s cubic-bezier(.16,1,.3,1);pointer-events:none}.toast-notification.show{opacity:1;transform:translate(-50%) translateY(0)}.draggable-col{position:relative}.draggable-col.is-dragging-col{background:#a855f71a!important;opacity:.7}.draggable-col.drag-over-left:after{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c-primary);pointer-events:none;z-index:20}.draggable-col.drag-over-right:after{content:"";position:absolute;right:-1px;top:0;bottom:0;width:4px;background:var(--c-primary);pointer-events:none;z-index:20}.drag-over-playlist{background-color:#a855f726!important;border-radius:8px;outline:2px dashed var(--c-primary)!important;outline-offset:-2px}.sidebar-resizer{position:absolute;right:-3px;top:0;bottom:0;width:6px;cursor:col-resize;background-color:transparent;transition:background-color .2s;z-index:10}.sidebar-resizer:hover,.sidebar-resizer.is-resizing{background-color:var(--c-primary)}.q-text-slot,.q-ans-slot,.q-diff-slot,.q-cat-slot{cursor:pointer;border-radius:4px;transition:background .2s;padding:2px 6px;margin-left:-6px}.q-text-slot:hover,.q-ans-slot:hover,.q-diff-slot:hover,.q-cat-slot:hover{background:#a855f71a}.q-media-slot,.q-format-slot{font-weight:600;font-size:.75rem;opacity:.6}.inline-edit-input{width:100%;height:100%;padding:2px 4px;margin:0;border:1px solid var(--c-primary);border-radius:4px;background:#fff;color:var(--c-text);font-size:inherit;font-family:inherit;box-sizing:border-box;outline:none}.inline-edit-input:focus{outline:none;border-color:#a855f7;box-shadow:inset 0 0 0 2px #a855f780}.inline-edit-select{width:100%;height:100%;padding:2px;margin:0;border:1px solid var(--c-primary);border-radius:4px;background:#fff;color:var(--c-text);font-size:inherit;font-family:inherit;box-sizing:border-box;outline:none}.inline-edit-select:focus{outline:none;border-color:#a855f7;box-shadow:inset 0 0 0 2px #a855f780}.menu-link[data-astro-cid-hnhh3bfe]:hover{background:#a855f71a}.sns-link[data-astro-cid-hnhh3bfe]{text-decoration:none}.sns-link[data-astro-cid-hnhh3bfe]:hover{color:var(--c-primary)!important}#btn-hamburger-menu[data-astro-cid-hnhh3bfe]:hover{background:#a855f71a!important}.playlist-panel-shell[data-astro-cid-xwgjk4wc]{display:flex;flex-direction:column;height:100%;width:100%;min-width:280px;box-sizing:border-box;border:1px solid var(--c-border);border-radius:8px;background:#00000008;overflow:hidden}.problem-set-panels[data-astro-cid-xwgjk4wc]{flex:1;min-width:0;width:100%;overflow-x:hidden;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:12px;box-sizing:border-box}.playlist-panel-actions[data-astro-cid-xwgjk4wc]{display:flex;justify-content:flex-end;align-items:center;gap:8px;padding:12px 16px;border-top:1px solid var(--c-border);background:var(--c-bg-glass);flex-shrink:0}.icon-circle-btn[data-astro-cid-5wqe2dgh]{position:relative;display:inline-grid;place-items:center;padding:0!important;border-radius:50%!important;line-height:0;flex-shrink:0;overflow:hidden}.icon-circle-btn--md[data-astro-cid-5wqe2dgh]{width:36px!important;height:36px!important;min-width:36px;min-height:36px}.icon-circle-btn--lg[data-astro-cid-5wqe2dgh]{width:44px!important;height:44px!important;min-width:44px;min-height:44px}.icon-circle-btn__glyph[data-astro-cid-5wqe2dgh]{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none}.icon-circle-btn__glyph[data-astro-cid-5wqe2dgh] i[data-astro-cid-5wqe2dgh]{display:block;line-height:1;margin:0;padding:0;transform:none!important;font-style:normal}.icon-circle-btn--md[data-astro-cid-5wqe2dgh] .icon-circle-btn__glyph[data-astro-cid-5wqe2dgh] i[data-astro-cid-5wqe2dgh]{font-size:1.2rem}.icon-circle-btn--lg[data-astro-cid-5wqe2dgh] .icon-circle-btn__glyph[data-astro-cid-5wqe2dgh] i[data-astro-cid-5wqe2dgh]{font-size:1.6rem}#screen-quiz[data-astro-cid-hhjsaycd].screen-quiz{overflow:hidden!important;padding:16px;box-sizing:border-box}.quiz-container-inner[data-astro-cid-hhjsaycd]{display:flex;flex-direction:column;height:100%;min-height:0;overflow:hidden}.quiz-header-area[data-astro-cid-hhjsaycd]{flex-shrink:0}.quiz-top-btn-group[data-astro-cid-hhjsaycd]{display:flex;gap:8px;justify-content:space-between;width:100%}.quiz-card-area[data-astro-cid-hhjsaycd]{flex:1;min-height:0;display:flex;flex-direction:column;margin:12px 0}.quiz-card-area[data-astro-cid-hhjsaycd] .card-3d-wrapper[data-astro-cid-hhjsaycd]{flex:1;min-height:0;display:flex;flex-direction:column;margin:0}.quiz-card-area[data-astro-cid-hhjsaycd] .card-3d[data-astro-cid-hhjsaycd]{flex:1;min-height:0;height:100%}.quiz-card-area[data-astro-cid-hhjsaycd] .card-front[data-astro-cid-hhjsaycd]{position:relative;align-items:stretch;text-align:left;min-height:100%;height:100%;overflow:hidden;box-sizing:border-box;padding-bottom:24px;transition:background .25s ease,border-color .25s ease}@media(max-width:799px){.quiz-card-area[data-astro-cid-hhjsaycd] .card-front[data-astro-cid-hhjsaycd]{padding-bottom:12px}}.quiz-card-area[data-astro-cid-hhjsaycd] .card-tag[data-astro-cid-hhjsaycd]{align-self:center}.quiz-hint-trigger[data-astro-cid-hhjsaycd]{position:absolute;top:12px;right:12px;z-index:6}.quiz-star-trigger[data-astro-cid-hhjsaycd]{position:absolute;top:12px;left:12px;z-index:6}.quiz-star-btn[data-astro-cid-hhjsaycd]{box-shadow:0 2px 8px #eab30826}.quiz-star-btn.is-starred .quiz-star-glyph{color:#eab308}.quiz-hint-btn[data-astro-cid-hhjsaycd]{box-shadow:0 2px 8px #a855f726}.quiz-hint-tooltip[data-astro-cid-hhjsaycd]{position:absolute;top:calc(100% + 10px);right:0;width:max-content;max-width:min(280px,calc(100vw - 48px));padding:10px 14px;background:#fff;border:1px solid rgba(168,85,247,.25);border-radius:10px;box-shadow:0 8px 24px #0000001f;opacity:0;visibility:hidden;transform:translateY(-4px);transition:opacity .2s ease,visibility .2s ease,transform .2s ease;pointer-events:none;text-align:left}.quiz-hint-tooltip[data-astro-cid-hhjsaycd]:before{content:"";position:absolute;bottom:100%;right:12px;border:8px solid transparent;border-bottom-color:#a855f740}.quiz-hint-tooltip[data-astro-cid-hhjsaycd]:after{content:"";position:absolute;bottom:100%;right:13px;border:7px solid transparent;border-bottom-color:#fff}.quiz-hint-trigger[data-astro-cid-hhjsaycd]:hover .quiz-hint-tooltip[data-astro-cid-hhjsaycd],.quiz-hint-trigger[data-astro-cid-hhjsaycd]:focus-within .quiz-hint-tooltip[data-astro-cid-hhjsaycd]{opacity:1;visibility:visible;transform:translateY(0)}.quiz-hint-tooltip-text[data-astro-cid-hhjsaycd]{margin:0;font-size:.85rem;line-height:1.5;color:var(--c-text);white-space:pre-wrap;word-break:break-word}.quiz-card-area[data-astro-cid-hhjsaycd] .card-front[data-astro-cid-hhjsaycd].card-front--correct{background:linear-gradient(135deg,#d1fae5f2,#a7f3d0e6);border-color:#6ee7b7;box-shadow:0 4px 20px #10b9811f}.quiz-card-area[data-astro-cid-hhjsaycd] .card-front[data-astro-cid-hhjsaycd].card-front--incorrect{background:linear-gradient(135deg,#fee2e2f2,#fecacae6);border-color:#fca5a5;box-shadow:0 4px 20px #ef44441f}.quiz-question-frame[data-astro-cid-hhjsaycd]{position:relative;flex:1;width:100%;min-height:0;display:flex;flex-direction:column;align-items:stretch}.quiz-question-body[data-astro-cid-hhjsaycd]{position:relative;flex:7 1 0;min-height:0;overflow-y:auto;width:100%}.quiz-judgment-overlay[data-astro-cid-hhjsaycd]{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;z-index:10}.quiz-judgment-mark[data-astro-cid-hhjsaycd]{display:flex;flex-direction:column;align-items:center;gap:10px}.quiz-judgment-icon[data-astro-cid-hhjsaycd]{width:min(55%,180px);height:min(55%,180px);opacity:.3;flex-shrink:0}.quiz-judgment-label[data-astro-cid-hhjsaycd]{margin:0;font-size:2rem;font-weight:800;line-height:1;letter-spacing:.06em;opacity:.3}.quiz-judgment-mark--correct[data-astro-cid-hhjsaycd] .quiz-judgment-icon[data-astro-cid-hhjsaycd],.quiz-judgment-mark--correct[data-astro-cid-hhjsaycd] .quiz-judgment-label[data-astro-cid-hhjsaycd]{color:#10b981}.quiz-judgment-mark--incorrect[data-astro-cid-hhjsaycd] .quiz-judgment-icon[data-astro-cid-hhjsaycd],.quiz-judgment-mark--incorrect[data-astro-cid-hhjsaycd] .quiz-judgment-label[data-astro-cid-hhjsaycd]{color:#ef4444}.quiz-question-inner[data-astro-cid-hhjsaycd]{max-width:800px;width:100%;margin:0 auto;box-sizing:border-box}.quiz-question-inner[data-astro-cid-hhjsaycd] .typewriter-hint[data-astro-cid-hhjsaycd]{margin:0 0 8px;min-height:20px;text-align:center}.quiz-question-inner[data-astro-cid-hhjsaycd] .question-text[data-astro-cid-hhjsaycd]{text-align:left;width:100%}.quiz-question-inner[data-astro-cid-hhjsaycd] .quiz-media-container[data-astro-cid-hhjsaycd]{margin-top:12px;width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;position:relative;z-index:1}.quiz-question-inner[data-astro-cid-hhjsaycd] .quiz-media-container[data-astro-cid-hhjsaycd] img[data-astro-cid-hhjsaycd],.quiz-question-inner[data-astro-cid-hhjsaycd] .quiz-media-container[data-astro-cid-hhjsaycd] video[data-astro-cid-hhjsaycd]{display:block;max-width:100%;max-height:200px;border-radius:8px;margin:0 auto}.quiz-question-inner[data-astro-cid-hhjsaycd] .quiz-media-container[data-astro-cid-hhjsaycd] audio[data-astro-cid-hhjsaycd]{width:min(100%,400px);margin:0 auto}.quiz-choice-chips-container[data-astro-cid-hhjsaycd]{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-start;width:100%;max-width:800px;margin:12px auto 0}.quiz-choice-chip{cursor:pointer;border:2px solid transparent;font:inherit}.quiz-choice-chip.is-selected{border-color:var(--c-primary);background:rgba(var(--c-primary-rgb, 59, 130, 246),.12)}.quiz-choice-chip:disabled{cursor:not-allowed;opacity:.65}.quiz-feedback-slot[data-astro-cid-hhjsaycd]{flex:3 0 0;min-height:0;width:100%;display:flex;justify-content:center;padding-top:8px;box-sizing:border-box}.quiz-feedback-panel[data-astro-cid-hhjsaycd]{max-width:800px;width:100%;height:100%;min-height:0;box-sizing:border-box;display:flex;flex-direction:column;gap:8px;overflow-y:auto;padding:0;background:transparent;border:none;box-shadow:none;text-align:left}.quiz-feedback-panel[data-astro-cid-hhjsaycd].is-active{padding:12px 16px;background:#ffffffd9;border-radius:12px;box-shadow:0 4px 20px #00000008}.feedback-result-label[data-astro-cid-hhjsaycd]{flex-shrink:0;font-size:1.1rem;font-weight:600;line-height:1.4;text-align:center}.feedback-result-label[data-astro-cid-hhjsaycd].is-correct{color:#065f46}.feedback-result-label[data-astro-cid-hhjsaycd].is-incorrect{color:#991b1b}.quiz-feedback-details[data-astro-cid-hhjsaycd]{display:flex;flex-direction:column;gap:8px;min-height:0}.quiz-feedback-panel[data-astro-cid-hhjsaycd] .correct-answer-display[data-astro-cid-hhjsaycd]{flex-shrink:0;font-size:.95rem;color:var(--c-text-muted);text-align:center;width:100%}.quiz-feedback-panel[data-astro-cid-hhjsaycd] .correct-answer-display[data-astro-cid-hhjsaycd] strong[data-astro-cid-hhjsaycd]{color:var(--c-text);font-size:1.05rem;font-weight:600;background:none;-webkit-text-fill-color:currentColor}.quiz-feedback-panel[data-astro-cid-hhjsaycd] .feedback-explanation[data-astro-cid-hhjsaycd]{display:block;flex-shrink:0;font-size:.85rem;color:var(--c-text-muted);background:transparent;padding:0;margin:0;border-radius:0;text-align:left;line-height:1.5;word-break:break-word;width:100%;box-sizing:border-box}.quiz-feedback-panel[data-astro-cid-hhjsaycd] .feedback-explanation[data-astro-cid-hhjsaycd].hide{display:none}.quiz-card-corner-actions[data-astro-cid-hhjsaycd]{position:absolute;right:12px;bottom:12px;z-index:3;text-align:right;pointer-events:none}.quiz-card-corner-actions[data-astro-cid-hhjsaycd] .btn-reveal-small[data-astro-cid-hhjsaycd]{pointer-events:auto}.quiz-fixed-bottom[data-astro-cid-hhjsaycd]{flex-shrink:0;display:flex;flex-direction:column;gap:12px;background:transparent}#quiz-answer-form[data-astro-cid-hhjsaycd]{width:100%;display:flex;flex-direction:column}#quiz-input-text-container[data-astro-cid-hhjsaycd],#quiz-input-multi-text-container[data-astro-cid-hhjsaycd]{width:100%}.quiz-answer-box[data-astro-cid-hhjsaycd]{width:100%;box-sizing:border-box}.quiz-multi-text-hint[data-astro-cid-hhjsaycd]{font-size:.75rem;color:var(--c-text-muted);margin-top:4px}.quiz-multi-text-answer[data-astro-cid-hhjsaycd]{width:100%;box-sizing:border-box}.quiz-multi-text-answer[data-astro-cid-hhjsaycd].is-disabled{opacity:.65;pointer-events:none}.quiz-input-choices-container[data-astro-cid-hhjsaycd]{display:flex;flex-direction:column;gap:8px;margin-top:8px;width:100%}.quiz-input-choices-container--instant[data-astro-cid-hhjsaycd]{flex-direction:row;flex-wrap:wrap;justify-content:center;gap:10px}.quiz-choice-btn{flex:1 1 0;min-width:80px;max-width:240px;padding:12px 16px;font-size:1.05rem;text-align:center}.quiz-buzz-container[data-astro-cid-hhjsaycd]{position:static;display:flex;flex-direction:column;gap:0;width:100%}.quiz-boolean-choice-row[data-astro-cid-hhjsaycd]{display:flex;flex-direction:row;gap:8px;width:100%}.quiz-boolean-choice-row[data-astro-cid-hhjsaycd] .quiz-boolean-choice-btn[data-astro-cid-hhjsaycd]{flex:1 1 0;min-width:0;width:auto}.quiz-feedback-action-row[data-astro-cid-hhjsaycd]{display:flex;gap:8px;width:100%}.quiz-feedback-action-row[data-astro-cid-hhjsaycd] .quiz-action-btn--skip[data-astro-cid-hhjsaycd]{flex:4 1 0;min-width:0}.quiz-feedback-action-row[data-astro-cid-hhjsaycd] .quiz-action-btn--show[data-astro-cid-hhjsaycd]{flex:1 1 0;min-width:0;font-size:.85rem;padding-left:8px;padding-right:8px}.quiz-feedback-action-row[data-astro-cid-hhjsaycd].is-answer-revealed .quiz-action-btn--skip[data-astro-cid-hhjsaycd]{flex:1 1 100%}.quiz-action-btn[data-astro-cid-hhjsaycd]{width:100%;box-shadow:0 4px 12px #00000026}.quiz-feedback-action-row[data-astro-cid-hhjsaycd] .quiz-action-btn[data-astro-cid-hhjsaycd]{width:auto}#screen-clear[data-astro-cid-dj5bggda].screen-clear{overflow:hidden!important;padding:16px;box-sizing:border-box;flex:1;min-height:0}.clear-container-inner[data-astro-cid-dj5bggda]{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden;width:100%}.clear-header-area[data-astro-cid-dj5bggda]{flex-shrink:0;text-align:center}.clear-report-area[data-astro-cid-dj5bggda]{flex:1;min-height:0;display:flex;flex-direction:column;margin:12px 0 0;width:100%}.clear-report-card[data-astro-cid-dj5bggda]{flex:1;min-height:0;height:100%;display:flex;flex-direction:column;margin:0;box-sizing:border-box;text-align:center}.clear-report-card[data-astro-cid-dj5bggda] h3[data-astro-cid-dj5bggda]{flex-shrink:0;text-align:center}.clear-stat-list[data-astro-cid-dj5bggda]{flex:1;min-height:0;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:16px;width:100%}.clear-stat-item[data-astro-cid-dj5bggda]{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;width:100%;max-width:320px;padding:8px 0;border-bottom:1px solid rgba(168,85,247,.12);text-align:center}.clear-stat-item[data-astro-cid-dj5bggda]:last-child{border-bottom:none}.clear-stat-item[data-astro-cid-dj5bggda] .stat-label[data-astro-cid-dj5bggda]{margin-top:0;font-size:.85rem;text-align:center}.clear-stat-item[data-astro-cid-dj5bggda] .stat-val[data-astro-cid-dj5bggda]{font-size:1.6rem;text-align:center;white-space:nowrap}.clear-fixed-bottom[data-astro-cid-dj5bggda]{flex-shrink:0;margin-top:auto;display:flex;flex-direction:column;gap:12px;width:100%;padding-top:12px}.clear-action-row[data-astro-cid-dj5bggda]{display:flex;flex-direction:row;gap:8px;width:100%}.clear-action-btn{flex:1 1 0;min-width:0;width:auto;box-sizing:border-box;box-shadow:0 4px 12px #00000026}@media(max-width:480px){.clear-action-row[data-astro-cid-dj5bggda]{flex-direction:column}.clear-action-btn{flex:none;width:100%}}