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14px}.contents-viewer-category-tab:hover{background:var(--gray-100)}.contents-viewer-category-tab.active{background:var(--primary-50,#f0fffb);border-color:var(--primary);color:var(--primary)}.contents-viewer-category-tab:focus{box-shadow:0 0 0 2px #0000000f;outline:none}.contents-viewer-search-section{align-items:center;display:flex;gap:var(--spacing-sm)}.contents-viewer-search-container{align-items:center;background:#fff;border:2px solid var(--gray-300);border-radius:var(--radius-sm);display:flex;gap:var(--spacing-xs);height:calc(var(--controls-height) - 4px);padding:0 var(--spacing-xs) 0 var(--spacing-sm);transition:var(--transition-normal)}.contents-viewer-search-container:hover{border-color:var(--gray-400)}.contents-viewer-search-container:focus-within{border-color:var(--primary)}.contents-viewer-search-input{border:none;color:var(--gray-800);font-size:var(--font-base);height:100%;min-width:220px;outline:none;padding:0 var(--spacing-sm)}.contents-viewer-search-input::placeholder{color:var(--gray-400)}@media (max-width:768px){.contents-viewer-section{padding:var(--spacing-2xl) 0 var(--spacing-lg) 0}.contents-viewer-search-input{font-size:14px;min-width:160px}}@media (max-width:480px){.contents-viewer-header{margin-bottom:var(--spacing-md)}.contents-viewer-section{padding:calc(var(--spacing-xl) + 20px) 0 var(--spacing-md) 0}.contents-viewer-category-filter,.contents-viewer-category-tab,.contents-viewer-category-tabs,.contents-viewer-search-button,.contents-viewer-search-container,.contents-viewer-search-input,.contents-viewer-search-section{width:100%}}@font-face{font-display:swap;font-family:CheongdoEupseong;font-style:normal;font-weight:300;src:url("/static/media/%EC%B2%AD%EB%8F%84%EC%9D%8D%EC%84%B1%EC%B2%B4(L).328d227d50ec6fe51355.ttf") format("truetype")}:root{--font-family-cheongdo:"CheongdoEupseong","Noto Serif KR",serif;--primary-color:var(--primary);--secondary-color:var(--gray-500);--success-color:var(--green);--danger-color:var(--red);--warning-color:var(--yellow);--info-color:var(--blue);--debate-blue:#4a90e2;--debate-blue-hover:#357abd;--debate-pro:#4caf50;--debate-pro-light:#4caf501a;--debate-pro-border:#4caf5033;--debate-con:#f44336;--debate-con-light:#f443361a;--debate-con-border:#f4433633;--debate-winner-gold:gold;--debate-winner-silver:silver;--debate-winner-bronze:#cd7f32;--debate-badge-bg:#e0e0e0;--debate-position-orange:#f57f17;--debate-position-blue:#1976d2;--gradient-purple-start:#667eea;--gradient-purple-end:#764ba2;--gradient-purple-light:#5a67d8;--gradient-purple-dark:#6b46c1;--text-primary:#333;--text-secondary:#666;--text-muted:#999;--text-light:#fff;--text-dark:#212529;--text-medium-gray:#444;--text-dark-gray:#555;--text-light-gray:#888;--bg-primary:#fff;--bg-secondary:#f8f9fa;--bg-tertiary:#e9ecef;--bg-paper:#fafafa;--bg-overlay:#00000080;--bg-cream:#f7f6f3;--bg-light-gray:#f1f1f1;--bg-very-light-gray:#f0f0f0;--border-color:#eaeaea;--border-color-light:#f0f0f0;--border-color-dark:#dee2e6;--border-color-medium:#e0e0e0;--border-color-blue:#bfc6d1;--border-color-gray:#ddd;--font-xxl:1.5rem;--font-xxxl:2rem;--font-display:3rem;--font-weight-light:300;--font-weight-regular:400;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--font-weight-extrabold:800;--font-weight-black:900;--line-height-none:1;--line-height-tight:1.25;--line-height-snug:1.375;--line-height-normal:1.5;--line-height-relaxed:1.625;--line-height-loose:2;--border-radius-none:0;--border-radius-sm:0.125rem;--border-radius:0.25rem;--border-radius-md:0.375rem;--border-radius-lg:0.5rem;--border-radius-xl:0.75rem;--border-radius-2xl:1rem;--border-radius-3xl:1.5rem;--border-radius-full:9999px;--border-width-0:0;--border-width:1px;--border-width-2:2px;--border-width-4:4px;--border-width-8:8px;--duration-75:75ms;--duration-100:100ms;--duration-150:150ms;--duration-200:200ms;--duration-300:300ms;--duration-500:500ms;--duration-700:700ms;--duration-1000:1000ms;--ease-linear:linear;--ease-in:cubic-bezier(0.4,0,1,1);--ease-out:cubic-bezier(0,0,0.2,1);--ease-in-out:cubic-bezier(0.4,0,0.2,1);--z-auto:auto;--z-0:0;--z-10:10;--z-20:20;--z-30:30;--z-40:40;--z-50:50;--z-dropdown:1000;--z-sticky:1020;--z-fixed:1030;--z-modal-backdrop:1040;--z-modal:1050;--z-popover:1060;--z-tooltip:1070;--z-max:9999;--breakpoint-xs:475px;--breakpoint-sm:576px;--breakpoint-md:768px;--breakpoint-lg:992px;--breakpoint-xl:1200px;--breakpoint-xxl:1400px;--opacity-0:0;--opacity-5:0.05;--opacity-10:0.1;--opacity-20:0.2;--opacity-25:0.25;--opacity-30:0.3;--opacity-40:0.4;--opacity-50:0.5;--opacity-60:0.6;--opacity-70:0.7;--opacity-75:0.75;--opacity-80:0.8;--opacity-90:0.9;--opacity-95:0.95;--opacity-100:1;--scale-0:0;--scale-50:0.5;--scale-75:0.75;--scale-90:0.9;--scale-95:0.95;--scale-100:1;--scale-105:1.05;--scale-110:1.1;--scale-125:1.25;--scale-150:1.5;--paper-ink:#333;--paper-note:#ffc;--paper-border-dashed:2px dashed var(--paper-ink);--paper-shadow-hover:4px 4px 0 #0003;--chalkboard-frame:#b38c52;--chalkboard-frame-alt:#8b6914;--chalkboard-border-thick:12px solid var(--chalkboard-frame);--chalkboard-border-thin:8px solid var(--chalkboard-frame);--chalkboard-shadow:0 6px 15px #00000040;--paper-saying-bg:#fdfbf3;--paper-saying-line:linear-gradient(#fdfbf3 1px,#0000 0),linear-gradient(90deg,#fdfbf3 1px,#0000 0);--paper-saying-line-size:20px 20px;--paper-saying-line-position:-1px -1px;--paper-saying-border:1px solid #e8e8e8;--paper-saying-shadow:0 5px 15px #0000001a;--student-item-bg:#f8f9fa;--student-item-bg-hover:#e9ecef;--student-item-border:1px solid #dee2e6;--student-item-shadow:0 2px 4px #0000001a;--button-notion-bg:#fff;--button-notion-border:#eaeaea;--button-notion-text:#333;--button-notion-hover-bg:#f5f5f5;--button-notion-hover-border:#d1d1d1;--button-yellow-bg:#ffd966;--button-yellow-text:#333;--button-yellow-border:1.5px solid #333;--button-yellow-shadow:2px 2px 0 #0000001a;--gradient-purple-hero:linear-gradient(135deg,#667eea,#764ba2);--gradient-paper-torn:linear-gradient(90deg,#0000,#0000000d 30%,#0000 70%,#0000000d);--gradient-chalkboard-frame:linear-gradient(45deg,#8b6914,var(--chalkboard-frame),#8b6914);--font-responsive-xs:clamp(0.7rem,2vw,0.8rem);--font-responsive-sm:clamp(0.8rem,2.5vw,0.9rem);--font-responsive-md:clamp(0.9rem,3vw,1rem);--font-responsive-lg:clamp(1rem,3.5vw,1.2rem);--font-responsive-xl:clamp(1.2rem,4vw,1.4rem);--font-responsive-xxl:clamp(1.4rem,5vw,1.8rem);--font-responsive-xxxl:clamp(1.8rem,6vw,2.2rem);--spacing-mobile-xs:clamp(2px,1vw,4px);--spacing-mobile-sm:clamp(4px,2vw,8px);--spacing-mobile-md:clamp(8px,3vw,16px);--spacing-mobile-lg:clamp(12px,4vw,24px);--spacing-mobile-xl:clamp(16px,5vw,32px);--studygroup-chalkboard-bg:#2a593e;--studygroup-chalkboard-frame:#b38c52;--studygroup-chalkboard-frame-alt:#8a6d3b;--studygroup-chalkboard-pattern:radial-gradient(#ffffff08 2px,#0000 0);--studygroup-chalkboard-pattern-size:20px 20px;--studygroup-chalk-text:#fff;--studygroup-chalk-text-shadow:2px 2px 3px #0000004d,0 0 5px #ffffff80;--studygroup-chalk-letter-spacing:1px;--studygroup-color-1:#b197fc;--studygroup-color-2:#a5d8ff;--studygroup-color-3:#ffb8b8;--studygroup-color-4:#b8e0d2;--studygroup-color-5:#ffd8b8;--studygroup-color-6:#ffb8d8;--studygroup-teacher-desk-bg:#b38c52;--studygroup-teacher-desk-border:#8a6d3b;--studygroup-teacher-desk-shadow:0 4px 6px #0000001a;--studygroup-student-desk-bg:#fff9;--studygroup-student-desk-shadow:0 2px 4px #0000001a;--studygroup-student-desk-size:clamp(45px,8vw,65px);--studygroup-card-border-radius:10px;--studygroup-card-padding:15px;--studygroup-card-shadow:0 4px 8px #0000001a;--studygroup-card-min-height:clamp(120px,25vw,200px);--studygroup-card-max-width:350px;--studygroup-font-group-number:clamp(24px,4vw,32px);--studygroup-font-student-number:clamp(14px,2.5vw,18px);--studygroup-font-student-type:clamp(10px,1.8vw,14px);--studygroup-desk-icon-font:clamp(16px,2.5vw,20px);--studygroup-grid-gap:clamp(6px,2vw,16px);--studygroup-desk-min-height:clamp(40px,8vw,60px);--survey-button-min-height:150px;--survey-button-padding:1.5rem;--survey-button-font-size:1.2rem;--survey-button-border-radius:12px;--survey-button-shadow:0 4px 6px #0000001a;--survey-button-shadow-hover:0 6px 12px #00000026;--survey-button-left-bg:#e8f5e9;--survey-button-left-color:#2e7d32;--survey-button-right-bg:#e3f2fd;--survey-button-right-color:#1565c0;--survey-gradient-header:linear-gradient(90deg,#06f,#4db9ff);--studygroup-result-card-bg:#fff;--studygroup-result-card-shadow:0 4px 6px #0000001a,0 1px 3px #00000014;--studygroup-share-url-bg:#fff;--studygroup-share-url-color:#333;--studygroup-button-size:40px;--studygroup-button-active-bg:#8ed1fc;--studygroup-button-active-color:#fff;--studygroup-button-disabled-bg:#ccc;--studygroup-button-disabled-color:#888;--studygroup-button-shadow:0 2px 4px #0003;--studygroup-button-home-bg:#fffc;--studygroup-popup-bg:#f8f9fa;--studygroup-modal-content-padding:30px 20px;--studygroup-count-font-size:3rem;--studygroup-count-color:#007bff;--studygroup-page-bg:#f9f7f3;--studygroup-content-padding:20px 0;--studygroup-content-padding-mobile:5px;--dailysaying-chalkboard-bg:#2a593e;--dailysaying-chalkboard-border:12px solid #b38c52;--dailysaying-chalkboard-pattern:radial-gradient(#ffffff08 2px,#0000 0);--dailysaying-chalk-text:#fffffff2;--dailysaying-chalk-shadow:2px 2px 3px #0000004d,0 0 5px #ffffff80;--dailysaying-paper-bg:#fdfbf3;--dailysaying-paper-line:linear-gradient(#fdfbf3 1px,#0000 0),linear-gradient(90deg,#fdfbf3 1px,#0000 0);--dailysaying-paper-line-size:20px 20px;--dailysaying-paper-border:1px solid #e8e8e8;--dailysaying-paper-shadow:0 5px 15px #0000001a;--dailysaying-machine-shadow:0 6px 15px #00000040;--dailysaying-shake-animation:shake 0.5s ease-in-out;--dailysaying-author-image-size:80px;--dailysaying-author-image-border:3px solid #e8e8e8;--dailysaying-author-image-shadow:0 2px 8px #00000026;--dailysaying-quote-font:var(--font-family-serif);--dailysaying-quote-color:#444;--dailysaying-author-color:#666;--dailysaying-theme-classic:#2a593e;--dailysaying-theme-wisdom:#5a4a78;--dailysaying-theme-love:#c7506d;--dailysaying-theme-success:#2e7d32;--dailysaying-theme-peace:#1565c0;--shake-keyframes:shake;--dailysaying-button-bg:#ffffffe6;--dailysaying-button-border:2px solid #0000001a;--dailysaying-button-shadow:inset 0 2px 4px #0000001a;--dailysaying-button-hover-bg:#fff;--dailysaying-button-hover-shadow:0 4px 12px #00000026;--dailysaying-mobile-padding:clamp(20px,5vw,40px);--dailysaying-mobile-margin:clamp(20px,6vw,40px);--dailysaying-mobile-font-quote:clamp(1.1rem,4.5vw,1.8rem);--dailysaying-mobile-font-author:clamp(0.9rem,3.5vw,1.2rem);--dailysaying-modal-bg:#000c;--dailysaying-modal-content-bg:#fff;--dailysaying-modal-border-radius:var(--border-radius-xl);--dailysaying-modal-shadow:0 10px 30px #0000004d;--sea-primary:#0069a3;--sea-overlay:#006994cc;--sea-background:#0069a3;--lifeboat-card-bg:#ffffff73;--lifeboat-card-bg-empty:#ffffff1f;--lifeboat-card-border:1px solid #ffffff4d;--lifeboat-card-shadow:0 0 5px #ffffff4d;--lifeboat-card-shadow-none:none;--lifeboat-card-border-none:none;--lifeboat-input-bg:#fffc;--lifeboat-counter-bg:#fff9e6;--lifeboat-btn-primary:#8ed1fc;--lifeboat-btn-disabled:#ccc;--lifeboat-btn-text:#fff;--lifeboat-btn-text-disabled:#888;--lifeboat-btn-shadow:0 2px 4px #0003;--lifeboat-btn-shadow-none:none;--lifeboat-remove-btn:#dc3545cc;--chalk-text-color:#fff;--chalk-text-shadow:2px 2px 3px #0000004d,0 0 5px #ffffff80;--chalk-letter-spacing:1px;--chalk-font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--chalkboard-bg:#0000;--chalkboard-pattern:radial-gradient(#ffffff08 2px,#0000 0);--chalkboard-pattern-size:20px 20px;--chalkboard-border:12px solid #b38c52;--chalkboard-border-thick:12px solid #b38c52;--chalkboard-shadow:0 8px 16px #0000004d;--chalkboard-text:#fffffff2;--chalkboard-text-shadow:2px 2px 3px #0000004d;--chalkboard-bottom-line:#1e472e;--chalkboard-line-border:2px solid #ffffff1a;--role-add-btn-bg:#ffffff1a;--role-add-btn-border:2px dashed #ffffff4d;--role-add-btn-color:#fff;--paper-bg:#f8f9fa;--paper-white:#fff;--paper-border-dashed:2px dashed #e0e0e0;--paper-shadow:3px 3px 0 #0003;--paper-shadow-hover:5px 5px 0 #0000004d;--paper-rotation-1:rotate(-1deg);--paper-rotation-2:rotate(1deg);--paper-rotation-3:rotate(-0.5deg);--start-btn-bg:#f76331;--start-btn-border:#f76331;--start-btn-shadow:3px 3px 0 #0003;--total-capacity-bg:#ffffff26;--modal-backdrop:#00000080;--action-btn-success:#4caf50;--action-btn-warning:gold;--action-btn-text-dark:#000;--role-spacing-mobile-xs:4px;--role-spacing-mobile-sm:8px;--role-spacing-mobile-md:12px;--role-spacing-mobile-lg:16px;--role-spacing-desktop-xs:8px;--role-spacing-desktop-sm:12px;--role-spacing-desktop-md:20px;--role-spacing-desktop-lg:30px;--test-paper-bg:#fff;--test-paper-border:2px solid #e0e0e0;--test-paper-shadow:0 4px 16px #00000014;--test-paper-border-radius:14px;--test-paper-width:794px;--test-paper-min-height:1123px;--test-paper-padding:48px 30px 80px 30px;--test-paper-font:"Noto Serif KR",serif,"Malgun Gothic","Apple SD Gothic Neo",sans-serif;--test-paper-header-border:2px solid #bfc6d1;--test-paper-title-size:2rem;--test-paper-title-color:var(--text-primary);--test-paper-date-color:#888;--test-paper-author-color:#666;--test-paper-desc-color:#444;--test-paper-question-bg:#0000;--test-paper-question-width:98%;--test-paper-question-margin:15px;--test-paper-question-padding:10px 0;--test-paper-question-number-size:1.15rem;--test-paper-question-number-weight:bold;--test-paper-question-input-size:0.95rem;--test-paper-question-input-line-height:1.4;--test-paper-option-circle-size:30px;--test-paper-option-circle-color:#666;--test-paper-option-circle-selected:#ff4a4a;--test-paper-option-circle-hover-bg:#e9ecef;--test-paper-option-input-size:0.9rem;--test-paper-option-input-border:1px solid #e0e0e0;--test-paper-option-margin:1px;--test-paper-btn-bg:var(--primary-color);--test-paper-btn-color:#fff;--test-paper-btn-border-radius:var(--border-radius-lg);--test-paper-btn-padding:var(--spacing-sm) var(--spacing-lg);--test-paper-btn-shadow:var(--shadow-md);--test-paper-btn-hover-shadow:var(--shadow-lg);--test-paper-page-btn-bg:#f8f9fa;--test-paper-page-btn-color:var(--text-secondary);--test-paper-page-btn-active-bg:var(--primary-color);--test-paper-page-btn-active-color:#fff;--test-paper-page-btn-border:1px solid #dee2e6;--test-paper-page-btn-size:40px;--test-paper-print-grid-gap:32px 40px;--test-paper-print-margin:0;--test-paper-print-page-break:always;--test-result-bg:#f8f9fa;--test-result-card-bg:#fff;--test-result-card-shadow:0 2px 10px #0000001a;--test-result-table-border:1px solid #dee2e6;--test-result-table-header-bg:#f8f9fa;--test-result-table-padding:12px;--test-result-grade-1-bg:#007bff;--test-result-grade-1-light:#f0f7ff;--test-result-grade-2-bg:#28a745;--test-result-grade-2-light:#f0f9f4;--test-result-grade-3-bg:#17a2b8;--test-result-grade-3-light:#f0f8fa;--test-result-grade-inactive:#f0f0f0;--test-result-grade-text:#666;--test-dashboard-card-bg:#fff;--test-dashboard-card-border:var(--border-color);--test-dashboard-card-shadow:var(--shadow-sm);--test-dashboard-card-hover-shadow:var(--shadow-md);--test-dashboard-card-border-radius:var(--border-radius-lg);--test-dashboard-card-padding:var(--spacing-lg);--test-badge-draft-bg:#6c757d;--test-badge-active-bg:var(--success-color);--test-badge-inactive-bg:var(--secondary-color);--test-badge-text:#fff;--test-badge-border-radius:var(--border-radius-full);--test-badge-padding:var(--spacing-xs) var(--spacing-sm);--test-badge-font-size:var(--font-xs);--test-mobile-container-width:100%;--test-mobile-container-padding:15px;--test-mobile-title-size:clamp(1.4rem,5vw,2rem);--test-mobile-question-size:clamp(0.85rem,3.5vw,0.95rem);--test-mobile-option-size:clamp(0.8rem,3vw,0.9rem);--test-mobile-btn-padding:var(--spacing-sm) var(--spacing-md);--test-paper-transform-origin:top center;--test-paper-margin-vertical:5vh;--test-paper-transition:var(--transition-normal);--test-paper-hover-transform:scale(1.02);--test-print-black:#000;--test-print-gray:#666;--test-print-light-gray:#ccc;--test-print-border:1px solid #000;--test-print-bg:#fff;--font-responsive-xs:clamp(0.7rem,2.5vw,0.75rem);--font-responsive-sm:clamp(0.8rem,3vw,0.875rem);--font-responsive-md:clamp(0.9rem,3.5vw,1rem);--font-responsive-lg:clamp(1rem,4vw,1.125rem);--font-responsive-xl:clamp(1.1rem,4.5vw,1.25rem);--font-responsive-xxl:clamp(1.3rem,5vw,1.5rem);--font-responsive-title:clamp(1.8rem,6vw,2.5rem);--spacing-responsive-xs:clamp(2px,1vw,4px);--spacing-responsive-sm:clamp(4px,2vw,8px);--spacing-responsive-md:clamp(8px,3vw,16px);--spacing-responsive-lg:clamp(12px,4vw,24px);--spacing-responsive-xl:clamp(16px,5vw,32px);--mobile-border-width:8px;--desktop-border-width:15px;--mobile-padding-container:15px 10px;--desktop-padding-container:20px;--mobile-padding-paper:15px 10px;--desktop-padding-paper:48px 30px 80px 30px}@media (prefers-reduced-motion:reduce){:root{--transition-all:none;--transition-fast:none;--transition-normal:none;--transition-slow:none;--transition-slower:none}}@keyframes paperFloat{0%{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-3px) rotate(1deg)}to{transform:translateY(0) rotate(-1deg)}}@keyframes chalkFade{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.content-start-section{background-color:#f8f9fa;min-height:100vh}.content-start-section .tools-frame-content .section-header .section-title.shortform-section-title,.shortform-section-header,.shortform-section-title,.tools-frame-content .shortform-section-header .shortform-section-title{text-align:center!important}.container .tools-frame-content .section-header.shortform-section-header .section-title.shortform-section-title{display:block!important;margin-left:auto!important;margin-right:auto!important;text-align:center!important}.content-info-frame .section-title.shortform-section-title,.tools-frame-content .content-info-frame .section-title.shortform-section-title{text-align:center!important}.short-form-quiz-home{background-color:#f8f9fa;font-family:Pretendard,-apple-system,BlinkMacSystemFont,sans-serif;min-height:100vh;padding:20px}.short-form-quiz-home.loading{align-items:center;display:flex;justify-content:center}.quiz-home-header{align-items:center;display:flex;gap:20px;justify-content:space-between;margin-bottom:30px}.shortform-header-left{flex:1}.back-button{backdrop-filter:none;background:#0000001a;color:#1f2937}.back-button:hover{background:#0003}.page-title{color:#1f2937;text-shadow:none}.help-button{align-items:center;backdrop-filter:none;background:#0000001a;border:none;border-radius:12px;color:#1f2937;cursor:pointer;display:flex;height:44px;justify-content:center;transition:all .2s ease;width:44px}.help-button:hover{background:#0003;transform:scale(1.05)}.class-selection-section{margin-bottom:30px}.class-selection-container{align-items:center;display:flex;flex-wrap:wrap;gap:15px}.class-selection-label{color:#1f2937;font-size:1.1rem;font-weight:600;white-space:nowrap}.class-selection-button{backdrop-filter:blur(10px);background:#fff;border:2px solid #0000;border-radius:12px;color:#374151;cursor:pointer;font-size:1rem;font-weight:600;min-width:200px;padding:12px 20px;text-align:left;transition:all .2s ease}.class-selection-button:hover{background:#fff;box-shadow:0 4px 12px #0000001a;transform:translateY(-2px)}.class-selection-button.loading{cursor:not-allowed;opacity:.7}.quiz-grid-container{backdrop-filter:none;background:#fff;border:1px solid #e5e7eb;border-radius:20px;box-shadow:0 4px 12px #00000014;min-height:400px;padding:30px}.quiz-grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));margin-top:20px}.quiz-card{background:#fff;border:2px solid #0000;border-radius:16px;box-shadow:0 4px 12px #00000014;cursor:pointer;overflow:hidden;padding:24px;position:relative;transition:all .3s ease}.quiz-card:hover{border-color:#667eea;box-shadow:0 8px 24px #0000001f;transform:translateY(-4px)}.quiz-card-header{align-items:flex-start;display:flex;justify-content:space-between;margin-bottom:16px}.quiz-card-title{color:#1f2937;flex:1;font-size:1.25rem;font-weight:700;line-height:1.4;margin:0;word-break:break-word}.quiz-card-menu{display:flex;gap:8px;margin-left:12px}.quiz-card-action{align-items:center;background:#f3f4f6;border:none;border-radius:8px;color:#6b7280;cursor:pointer;display:flex;height:32px;justify-content:center;transition:all .2s ease;width:32px}.quiz-card-action:hover{background:#e5e7eb;color:#374151}.quiz-card-meta{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.quiz-meta-row{align-items:center;color:#6b7280;display:flex;font-size:.875rem;gap:8px}.quiz-meta-icon{color:#9ca3af;height:16px;width:16px}.quiz-card-footer{align-items:center;border-top:1px solid #f3f4f6;display:flex;justify-content:space-between;padding-top:16px}.quiz-question-count{color:#6b7280;font-size:.875rem;font-weight:500}.quiz-created-date{color:#9ca3af;font-size:.75rem}.add-quiz-card{align-items:center;background:#fff;border:2px dashed var(--gray-300);border-radius:16px;cursor:pointer;display:flex;flex-direction:column;justify-content:center;min-height:200px;padding:40px 24px;text-align:center;transition:all .3s ease}.add-quiz-card:hover{background:var(--primary-light);border-color:var(--primary);transform:translateY(-4px)}.add-quiz-icon{color:var(--gray-400);height:48px;margin-bottom:16px;width:48px}.add-quiz-title{color:var(--gray-700);font-size:1.25rem;font-weight:700;margin:0 0 8px}.add-quiz-subtitle{color:var(--gray-500);font-size:.875rem;line-height:1.5;margin:0}.loading-spinner{align-items:center;color:#fff;display:flex;flex-direction:column;gap:16px;justify-content:center;padding:60px 20px}.spinner{border:3px solid #ffffff4d;height:32px;width:32px}.loading-text{font-size:1rem;font-weight:500;text-align:center}.error-container{align-items:center;display:flex;flex-direction:column;gap:16px;justify-content:center;padding:60px 20px}.error-message{backdrop-filter:blur(10px);background:#fffffff2;border-radius:12px;color:#ef4444;font-weight:500;padding:16px 24px}.empty-state{align-items:center;display:flex;flex-direction:column;gap:20px;justify-content:center;padding:60px 20px;text-align:center}.empty-icon{color:#9ca3af;height:64px;width:64px}.empty-title{color:#374151;font-size:1.5rem;font-weight:700;margin:0}.empty-subtitle{color:#6b7280;font-size:1rem;line-height:1.6;margin:0}.empty-action{background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:12px;color:#fff;cursor:pointer;font-size:1rem;font-weight:600;padding:12px 24px;transition:all .2s ease}.empty-action:hover{box-shadow:0 4px 12px #667eea4d;transform:translateY(-2px)}@media (max-width:768px){.short-form-quiz-home{padding:16px}.quiz-home-header{align-items:flex-start;flex-direction:column;gap:16px}.shortform-header-left{width:100%}.page-title{font-size:1.5rem}.class-selection-container{align-items:stretch;flex-direction:column}.class-selection-button{min-width:auto;text-align:center}.quiz-grid-container{padding:20px}.quiz-grid{gap:16px;grid-template-columns:1fr}.quiz-card{padding:20px}.quiz-card-header{align-items:flex-start;flex-direction:column;gap:12px}.quiz-card-menu{align-self:flex-end;margin-left:0}.add-quiz-card{padding:32px 20px}}@media (max-width:480px){.short-form-quiz-home{padding:12px}.page-title{font-size:1.25rem}.quiz-card,.quiz-grid-container{padding:16px}.quiz-card-title{font-size:1.1rem}.add-quiz-card{min-height:160px;padding:24px 16px}.add-quiz-icon{height:40px;width:40px}.add-quiz-title{font-size:1.1rem}}@media (prefers-color-scheme:dark){.quiz-grid-container{background:#1f2937f2}.quiz-card{background:#374151;border-color:#4b5563}.quiz-card-title{color:#f9fafb}.quiz-meta-row{color:#d1d5db}.quiz-meta-icon{color:#9ca3af}.quiz-card-footer{border-top-color:#4b5563}.quiz-question-count{color:#d1d5db}.quiz-created-date{color:#9ca3af}.quiz-card-action{background:#4b5563;color:#d1d5db}.quiz-card-action:hover{background:#6b7280;color:#f9fafb}.empty-title{color:#f9fafb}.empty-subtitle{color:#d1d5db}.error-message{background:#1f2937f2;color:#fca5a5}}.short-form-quiz-setting{background:linear-gradient(135deg,#667eea,#764ba2);font-family:Pretendard,-apple-system,BlinkMacSystemFont,sans-serif;min-height:100vh;padding:20px}.setting-header{align-items:center;display:flex;gap:20px;justify-content:space-between;margin-bottom:30px}.setting-content{backdrop-filter:blur(20px);background:#fffffff2;border-radius:20px;box-shadow:0 8px 32px #0000001a;margin:0 auto;max-width:800px;padding:40px}.generation-mode-section{text-align:center}.section-title{font-size:1.75rem;margin:0 0 16px}.section-subtitle{color:#6b7280;font-size:1rem;line-height:1.6;margin:0 0 40px}.mode-options{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));margin-bottom:40px}.mode-option{background:#fff;border:3px solid #e5e7eb;border-radius:16px;cursor:pointer;padding:32px 24px;position:relative;text-align:center;transition:all .3s ease}.mode-option:hover{border-color:#667eea;box-shadow:0 8px 24px #667eea33;transform:translateY(-4px)}.mode-option.selected{background:linear-gradient(135deg,#667eea,#764ba2);border-color:#667eea;color:#fff}.mode-icon{color:#667eea;height:64px;margin:0 auto 20px;width:64px}.mode-option.selected .mode-icon{color:#fff}.mode-title{color:#1f2937;font-size:1.25rem;font-weight:700;margin:0 0 12px}.mode-option.selected .mode-title{color:#fff}.mode-description{color:#6b7280;font-size:.875rem;line-height:1.5;margin:0}.mode-option.selected .mode-description{color:#ffffffe6}.shortform-form-section{display:flex;flex-direction:column;gap:32px}.shortform-form-group{display:flex;flex-direction:column;gap:12px}.shortform-form-label{align-items:center;color:#374151;display:flex;font-size:1.1rem;font-weight:600;gap:8px}.school-type-options{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.school-type-option{background:#fff;border:2px solid #e5e7eb;border-radius:12px;color:#374151;cursor:pointer;font-weight:600;padding:16px 12px;text-align:center;transition:all .2s ease}.school-type-option:hover{background:#f8faff;border-color:#667eea}.school-type-option.selected{background:#667eea;border-color:#667eea;color:#fff}.school-type-option.disabled{cursor:not-allowed;opacity:.5}.grade-options{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(80px,1fr))}.grade-option{background:#fff;border:2px solid #e5e7eb;border-radius:12px;color:#374151;cursor:pointer;font-weight:600;padding:16px 12px;text-align:center;transition:all .2s ease}.grade-option:hover{background:#f8faff;border-color:#667eea}.grade-option.selected{background:#667eea;border-color:#667eea;color:#fff}.input-mode-toggle{background:#f3f4f6;border-radius:12px;display:flex;margin-bottom:16px;padding:4px}.mode-toggle-button{background:#0000;border:none;border-radius:8px;color:#6b7280;cursor:pointer;flex:1;font-weight:600;padding:12px 16px;transition:all .2s ease}.mode-toggle-button.active{background:#fff;box-shadow:0 2px 4px #0000001a;color:#667eea}.subject-grid{background:#f9fafb;border:2px solid #e5e7eb;border-radius:12px;display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));max-height:200px;overflow-y:auto;padding:16px}.subject-option{background:#fff;border:2px solid #e5e7eb;border-radius:8px;color:#374151;cursor:pointer;font-size:.875rem;font-weight:500;padding:12px 8px;text-align:center;transition:all .2s ease}.subject-option:hover{background:#f8faff;border-color:#667eea}.subject-option.selected{background:#667eea;border-color:#667eea;color:#fff}.topic-grid{background:#f9fafb;border:2px solid #e5e7eb;border-radius:12px;display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));max-height:150px;overflow-y:auto;padding:16px}.topic-option{background:#fff;border:2px solid #e5e7eb;border-radius:8px;color:#374151;cursor:pointer;font-size:.75rem;font-weight:500;padding:8px 6px;text-align:center;transition:all .2s ease}.topic-option:hover{background:#f8faff;border-color:#667eea}.topic-option.selected{background:#667eea;border-color:#667eea;color:#fff}.shortform-form-input{background:#fff;border:2px solid #e5e7eb;border-radius:12px;font-family:inherit;font-size:1rem;padding:16px 20px;transition:all .2s ease;width:100%}.shortform-form-input:focus{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a;outline:none}.shortform-form-input.error{border-color:#ef4444;box-shadow:0 0 0 3px #ef44441a}.custom-school-input{margin-top:12px}.game-type-section{margin-top:24px}.game-type-options{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}.game-type-option{background:#fff;border:2px solid #e5e7eb;border-radius:12px;cursor:pointer;padding:20px 16px;position:relative;text-align:center;transition:all .2s ease}.game-type-option:hover{background:#f8faff;border-color:#667eea}.game-type-option.selected{background:#667eea;border-color:#667eea;color:#fff}.game-type-option.disabled{background:#f3f4f6;cursor:not-allowed;opacity:.5}.game-type-title{color:#374151;font-weight:600;margin:0}.game-type-option.selected .game-type-title{color:#fff}.game-type-option.disabled .game-type-title{color:#9ca3af}.loading-section{padding:60px 20px;text-align:center}.loading-spinner{border:4px solid #e5e7eb;border-top-color:#667eea;height:64px;margin:0 auto 24px;width:64px}.loading-title{color:#1f2937;font-size:1.5rem;font-weight:700;margin:0 0 12px}.loading-subtitle{color:#6b7280;font-size:1rem;line-height:1.6;margin:0}.preview-section{display:flex;flex-direction:column;gap:32px}.preview-header{border-bottom:2px solid #e5e7eb;padding-bottom:24px;text-align:center}.quiz-meta-info{margin-bottom:32px}.questions-preview{display:flex;flex-direction:column;gap:24px}.question-header{gap:12px;margin-bottom:16px}.question-number{font-size:.875rem;height:32px;width:32px}.question-text{flex:1;font-size:1.1rem;font-weight:600;margin:0}.question-options{gap:12px;margin-left:44px}.option-label{font-size:.75rem;height:24px;width:24px}.option-text{color:#374151;flex:1;font-size:.875rem;margin:0}.option-item.correct .option-text{color:#065f46;font-weight:600}.title-input,.title-input-section{text-align:center}.title-input{display:block;font-size:1.25rem;margin:0 auto 32px;max-width:500px;padding:20px 24px;width:100%}.validation-error{align-items:center;color:#ef4444;display:flex;font-size:.875rem;gap:6px;margin-top:8px}.error-icon{flex-shrink:0;height:16px;width:16px}.exit-modal-overlay{align-items:center;backdrop-filter:blur(4px);background:#00000080;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:1000}.exit-modal{background:#fff;border-radius:20px;box-shadow:0 20px 40px #0000001a;max-width:400px;padding:32px;text-align:center;width:90%}.exit-modal-title{color:#1f2937;font-size:1.5rem;font-weight:700;margin:0 0 16px}.exit-modal-message{color:#6b7280;font-size:1rem;line-height:1.6;margin:0 0 32px}.exit-modal-buttons{display:flex;gap:12px;justify-content:center}.exit-modal-button{border:none;border-radius:12px;cursor:pointer;font-weight:600;min-width:100px;padding:12px 24px;transition:all .2s ease}.exit-modal-button.cancel{background:#f3f4f6;color:#374151}.exit-modal-button.cancel:hover{background:#e5e7eb}.exit-modal-button.confirm{background:#ef4444;color:#fff}.exit-modal-button.confirm:hover{background:#dc2626}@media (max-width:768px){.short-form-quiz-setting{padding:16px}.setting-header{align-items:flex-start;flex-direction:column;gap:16px}.page-title{font-size:1.5rem}.setting-content{padding:24px}.mode-options{grid-template-columns:1fr}.school-type-options{grid-template-columns:repeat(2,1fr)}.grade-options{grid-template-columns:repeat(3,1fr)}.subject-grid{grid-template-columns:repeat(2,1fr)}.topic-grid{grid-template-columns:repeat(3,1fr)}.game-type-options,.quiz-meta-info{grid-template-columns:1fr}.quiz-meta-info{gap:16px}.question-options{grid-template-columns:1fr;margin-left:0}.action-buttons{align-items:center;flex-direction:column}.action-button{max-width:300px;width:100%}}@media (max-width:480px){.short-form-quiz-setting{padding:12px}.setting-content{padding:20px}.page-title{font-size:1.25rem}.section-title{font-size:1.5rem}.school-type-options{grid-template-columns:1fr}.grade-options{grid-template-columns:repeat(2,1fr)}.subject-grid{grid-template-columns:1fr}.topic-grid{grid-template-columns:repeat(2,1fr)}.exit-modal{padding:24px;width:95%}.exit-modal-buttons{flex-direction:column}.exit-modal-button{width:100%}}@media (prefers-color-scheme:dark){.setting-content{background:#1f2937f2}.section-title{color:#f9fafb}.section-subtitle{color:#d1d5db}.shortform-form-label{color:#f3f4f6}.mode-option{background:#374151;border-color:#4b5563}.mode-title{color:#f9fafb}.mode-description{color:#d1d5db}.shortform-form-input{color:#f9fafb}.quiz-meta-info,.shortform-form-input{background:#374151;border-color:#4b5563}.meta-label{color:#d1d5db}.meta-value{color:#f9fafb}.question-card{background:#374151;border-color:#4b5563}.question-text{color:#f9fafb}.option-item{background:#4b5563;border-color:#6b7280}.option-text{color:#f3f4f6}.validation-error{color:#fca5a5}.exit-modal{background:#374151}.exit-modal-title{color:#f9fafb}.exit-modal-message{color:#d1d5db}.exit-modal-button.cancel{background:#4b5563;color:#f3f4f6}.exit-modal-button.cancel:hover{background:#6b7280}}.balloon-pop-game{background:linear-gradient(180deg,#87ceeb,#98fb98);height:100%;overflow:hidden;position:relative;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;width:100%}.balloon-game-canvas{cursor:crosshair;height:100%;image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges;image-rendering:pixelated;left:0;position:absolute;top:0;touch-action:none;width:100%}.balloon-game-overlay{bottom:0;left:0;pointer-events:none;position:absolute;right:0;top:0;z-index:10}.crosshair-cursor{height:40px;pointer-events:none;position:absolute;transition:opacity 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#10b9814d;color:#fff;font-size:1.5rem;font-weight:700;padding:8px 16px;pointer-events:none;position:absolute;z-index:25}@keyframes score-float-up{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(-60px) scale(.7)}}@media (pointer:coarse){.bubble-game-canvas{cursor:default}.bubble-item{min-height:50px;min-width:50px}.bubble-grid{gap:4px;grid-template-columns:repeat(auto-fit,minmax(50px,1fr));grid-template-rows:repeat(auto-fit,minmax(50px,1fr));padding:16px}}@media (max-width:768px){.bubble-grid{gap:3px;grid-template-columns:repeat(auto-fit,minmax(45px,1fr));grid-template-rows:repeat(auto-fit,minmax(45px,1fr));padding:16px}.bubble-text{font-size:.75rem}.bubble-progress-indicator{padding:10px 16px;top:16px}.progress-content{font-size:.75rem;gap:10px}.progress-bar-container{height:6px;width:100px}.bubble-completion-effect{font-size:1.5rem;padding:24px 32px}.hint-content{padding:20px 24px}.hint-title{font-size:1.1rem}.hint-message{font-size:.875rem}}@media 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#ffd700cc;border-radius:50%;height:40px;pointer-events:none;position:absolute;transition:opacity .2s ease;width:40px;z-index:20}.erase-cursor.hidden{opacity:0}.erase-cursor.active{animation:cursor-pulse .3s ease-in-out;background:#ffd70066;border-color:gold;box-shadow:0 0 20px #ffd70099}@keyframes cursor-pulse{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}.erase-progress-indicator{backdrop-filter:blur(10px);background:#92400ee6;border:2px solid #ffd70080;border-radius:16px;box-shadow:0 4px 12px #0000004d;left:50%;padding:16px 24px;pointer-events:none;position:absolute;top:20px;transform:translateX(-50%);z-index:20}.progress-content{align-items:center;color:#fef3c7;display:flex;gap:16px}.progress-icon{color:#fbbf24;height:24px;width:24px}.progress-text{font-size:1rem;font-weight:600;margin:0;text-shadow:0 1px 2px #00000080}.erase-percentage{background:#ffd70033;border:1px solid #ffd7004d;border-radius:12px;font-weight:700;padding:4px 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#fbbf2466;transform:translateY(-2px)}.erase-completion-effect{animation:treasure-completion 3s ease-out forwards;backdrop-filter:blur(20px);background:linear-gradient(135deg,#fbbf24,#f59e0b);border:3px solid #ffd700cc;border-radius:24px;box-shadow:0 20px 40px #fbbf2480;color:#92400e;font-size:2.5rem;font-weight:700;left:50%;padding:40px 48px;pointer-events:none;position:absolute;text-align:center;top:50%;transform:translate(-50%,-50%);z-index:30}@keyframes treasure-completion{0%{opacity:0;transform:translate(-50%,-50%) scale(.2) rotate(-20deg)}20%{opacity:1;transform:translate(-50%,-50%) scale(1.3) rotate(10deg)}35%{transform:translate(-50%,-50%) scale(.8) rotate(-5deg)}50%{transform:translate(-50%,-50%) scale(1.1) rotate(2deg)}60%{transform:translate(-50%,-50%) scale(1) rotate(0deg)}85%{opacity:1;transform:translate(-50%,-50%) scale(1) rotate(0deg)}to{opacity:0;transform:translate(-50%,-50%) scale(.7) rotate(0deg)}}.treasure-particle-effect{pointer-events:none;position:absolute;z-index:15}.treasure-particle{animation:treasure-particle-burst 1.2s ease-out forwards;background:#fbbf24;border-radius:50%;box-shadow:0 0 8px #fbbf24;height:6px;position:absolute;width:6px}@keyframes treasure-particle-burst{0%{opacity:1;transform:scale(1) rotate(0deg)}to{opacity:0;transform:scale(.3) translate(var(--dx),var(--dy)) rotate(2turn)}}.treasure-score-popup{animation:treasure-score-float 1.5s ease-out forwards;backdrop-filter:blur(10px);background:linear-gradient(135deg,#34d399,#10b981);border:2px solid #ffffff4d;border-radius:20px;box-shadow:0 4px 12px #34d39966;color:#fff;font-size:1.5rem;font-weight:700;padding:12px 20px;pointer-events:none;position:absolute;z-index:25}@keyframes treasure-score-float{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(-80px) scale(.6)}}.erase-trail{pointer-events:none;position:absolute;z-index:7}.trail-dot{animation:trail-fade .8s 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(max-width:768px){.short-form-quiz-teacher{padding:16px}.teacher-header{align-items:flex-start;flex-direction:column;gap:16px}.page-title{font-size:1.5rem}.participants-card,.quiz-info-card{padding:20px}.quiz-header{align-items:flex-start;flex-direction:column;gap:16px}.quiz-actions{align-self:flex-end}.invite-url-container{flex-direction:column}.invite-actions{justify-content:center}.settings-grid{grid-template-columns:repeat(2,1fr)}.participants-controls{justify-content:center}.participant-item{padding:10px 12px}.participant-actions{opacity:1}}@media 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