@import url("https://fonts.googleapis.com/css2?family=Nanum+Pen+Script&family=Outfit:wght@800&family=Jua&display=swap");:root{--desktop-nav-height:64px;--z-base:1;--z-nav:1000;--z-modal:2000;--z-toast:3000}html{scroll-behavior:smooth;scroll-padding-top:var(--desktop-nav-height)}body,html{overscroll-behavior-y:none}.app-container{min-height:100vh;max-width:480px;margin:0 auto;background:transparent;position:relative;display:flex;flex-direction:column;transition:max-width .3s ease;overflow-x:hidden}@media (min-width:768px){.app-container{max-width:none!important;margin:0!important}.desktop-main{padding-top:var(--desktop-nav-height);min-height:100vh;display:flex;flex-direction:column}}.app-container.wide-layout{max-width:1000px}.page-content{flex:1 1;padding:0 calc(var(--vpx) * 20) calc(var(--vpx) * 100);display:flex;flex-direction:column}@media (min-width:768px){.page-content{padding-left:0!important;padding-right:0!important;max-width:none!important;width:100%!important}}.page-header-desc{font-size:14px;color:var(--text-secondary);margin-top:4px;margin-bottom:24px}.empty-state{justify-content:center;padding:80px 40px}.empty-state-icon{font-size:64px}.empty-state-title{font-size:18px;font-weight:700;margin-bottom:8px}.empty-state-text{font-size:14px;color:var(--text-secondary);line-height:1.5}.hero-section{padding:20px 0 24px}.hero-greeting{font-size:14px;font-weight:500;color:var(--text-secondary);margin-bottom:4px}.hero-title{font-size:28px;font-weight:800;letter-spacing:-.5px;line-height:1.2;color:var(--text-primary)}.search-bar{display:flex;align-items:center;background:var(--bg-secondary);border-radius:var(--radius-lg);margin-bottom:28px;padding:6px 6px 6px 16px;transition:background var(--transition-fast),border-color var(--transition-fast),box-shadow var(--transition-fast);border:1px solid var(--border-color)}.search-bar:focus-within{background:var(--bg-primary);border-color:var(--accent-blue);box-shadow:0 0 0 4px var(--accent-blue-light)}.search-form{display:flex;align-items:center;width:100%;gap:12px}.search-submit-btn{display:flex;align-items:center;gap:6px;padding:10px 18px;background:var(--accent-blue);color:white;border:none;border-radius:calc(var(--radius-lg) - 4px);font-size:14px;font-weight:700;cursor:pointer;transition:all var(--transition-fast);box-shadow:0 4px 12px rgba(0,122,255,.2)}.search-submit-btn:hover{background:#006ae6;transform:translateY(-1px);box-shadow:0 6px 16px rgba(0,122,255,.3)}.search-submit-btn:active{transform:scale(.96) translateY(0)}.search-submit-btn svg{width:16px;height:16px;color:white}.search-input{flex:1 1;border:none;background:transparent;padding:8px 0;font-size:15px;font-weight:500;color:var(--text-primary)}.search-bar input::placeholder{color:var(--text-tertiary)}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.section-title{font-size:20px;font-weight:700;letter-spacing:-.3px}.section-more{font-size:14px;font-weight:500;color:var(--accent-blue)}.quiz-card-list{display:flex;flex-direction:column;gap:12px;margin-bottom:32px}.quiz-card{display:flex;align-items:center;gap:14px;padding:16px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-lg);transition:transform var(--transition-smooth),box-shadow var(--transition-smooth);cursor:pointer;-webkit-tap-highlight-color:transparent}.quiz-card:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}.quiz-card:active{transform:scale(.98)}.quiz-card-rank{font-size:18px;font-weight:800;color:var(--text-tertiary);min-width:28px;text-align:center}.quiz-card-rank.top-1{color:#FFD700}.quiz-card-rank.top-2{color:#C0C0C0}.quiz-card-rank.top-3{color:#CD7F32}.quiz-card-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}.quiz-card-info{flex:1 1;min-width:0}.quiz-card-title{font-size:15px;font-weight:600;color:var(--text-primary);margin-bottom:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.quiz-card-meta{font-size:13px;color:var(--text-tertiary);display:flex;align-items:center;gap:8px}.quiz-card-likes{display:flex;align-items:center;gap:4px;color:var(--accent-red);font-size:14px;font-weight:600;flex-shrink:0}.quiz-card-likes svg{width:16px;height:16px}.category-scroll{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;margin-bottom:24px;-ms-overflow-style:none;scrollbar-width:none}.category-scroll::-webkit-scrollbar{display:none}.category-pill{padding:8px 16px;border-radius:var(--radius-full);font-size:13px;font-weight:600;white-space:nowrap;background:var(--bg-secondary);color:var(--text-secondary);border:1px solid transparent;transition:all var(--transition-fast);-webkit-tap-highlight-color:transparent}.category-pill.active{background:var(--text-primary);color:var(--bg-primary)}.category-pill:hover:not(.active){background:var(--bg-tertiary)}.home-filter-area{margin-top:2px;margin-bottom:28px;display:flex;flex-direction:column;gap:10px}.home-filter-area .category-scroll{margin-bottom:0}.sub-scroll{padding:2px 0}.sub-pill{font-size:13px;padding:6px 14px;background:var(--bg-secondary);color:var(--text-secondary);border:1px solid var(--border-color);opacity:.9}.sub-pill.active{background:var(--accent-purple);color:white;border-color:var(--accent-purple);opacity:1}.sub-pill:hover:not(.active){background:var(--bg-tertiary);border-color:var(--border-color-strong)}.create-page-wrapper{flex:1 1;display:flex;flex-direction:column;padding:72px calc(var(--vpx) * 20) calc(var(--vpx) * 100)}.create-header{position:fixed;top:0;left:0!important;right:0!important;width:100%!important;z-index:500;background:rgba(255,255,255,.88);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color)}.create-header-inner{width:100%;height:64px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 20px}.dark .create-header{background:rgba(28,28,30,.82)}.back-btn{display:flex;align-items:center;gap:4px;font-size:16px;font-weight:500;color:var(--accent-blue);-webkit-tap-highlight-color:transparent}.publish-btn{padding:8px 20px;background:var(--accent-blue);color:white;border-radius:var(--radius-full);font-size:15px;font-weight:600;transition:background var(--transition-fast),transform var(--transition-fast)}.publish-btn:active{transform:scale(.95)}.publish-btn:disabled{background:var(--bg-tertiary);color:var(--text-tertiary)}.form-group{margin-bottom:24px}.form-label{display:block;font-size:13px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px}.form-input{width:100%;padding:14px 16px;background:var(--bg-secondary);border-radius:var(--radius-md);font-size:16px;color:var(--text-primary);transition:background var(--transition-fast),box-shadow var(--transition-fast)}.form-input:focus{background:var(--bg-primary);box-shadow:0 0 0 2px var(--accent-blue)}.form-input::placeholder{color:var(--text-tertiary)}.buckets-container{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:24px}.bucket{padding:16px;background:var(--bg-secondary);border:2px dashed var(--border-color-strong);border-radius:var(--radius-lg);min-height:130px;transition:all var(--transition-fast)}.bucket.drag-over{border-color:var(--accent-blue);background:var(--accent-blue-light)}.bucket-label{font-size:14px;font-weight:700;text-align:center;margin-bottom:10px;color:var(--text-primary)}.bucket-items{display:flex;flex-direction:column;gap:6px}.bucket-item{padding:8px 12px;background:var(--bg-primary);border-radius:var(--radius-sm);font-size:13px;font-weight:500;box-shadow:var(--shadow-sm)}.items-tray{padding:16px;background:var(--bg-secondary);border-radius:var(--radius-lg);margin-bottom:24px}.items-tray-label{font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:10px}.draggable-items{display:flex;flex-wrap:wrap;gap:8px}.draggable-item{padding:10px 16px;background:var(--bg-primary);border-radius:var(--radius-full);font-size:14px;font-weight:500;box-shadow:var(--shadow-sm);cursor:grab;transition:transform var(--transition-fast),box-shadow var(--transition-fast);-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none;touch-action:none}.draggable-item:active{cursor:grabbing;transform:scale(1.05);box-shadow:var(--shadow-lg)}.draggable-item.dragging{opacity:.5}.add-item-row{display:flex;gap:8px;margin-bottom:12px}.add-item-input{flex:1 1;padding:12px 14px;background:var(--bg-secondary);border-radius:var(--radius-md);font-size:15px}.add-item-input:focus{background:var(--bg-primary);box-shadow:0 0 0 2px var(--accent-blue)}.add-item-btn{padding:12px 16px;background:var(--accent-blue);color:white;border-radius:var(--radius-md);font-weight:600;font-size:14px;transition:transform var(--transition-fast);white-space:nowrap}.add-item-btn:active{transform:scale(.95)}.item-list{display:flex;flex-direction:column;gap:8px;margin-bottom:24px}.item-entry{display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--bg-secondary);border-radius:var(--radius-md)}.item-entry-text{flex:1 1;font-size:15px;font-weight:500}.item-entry-category{padding:4px 10px;border-radius:var(--radius-full);font-size:12px;font-weight:600}.item-entry-category.cat-a{background:var(--accent-blue-light);color:var(--accent-blue)}.item-entry-category.cat-b{background:var(--accent-purple-light);color:var(--accent-purple)}.item-entry-delete{color:var(--text-tertiary);padding:4px;transition:color var(--transition-fast)}.item-entry-delete:hover{color:var(--accent-red)}.cat-selector{display:flex;gap:4px}.cat-selector button{padding:4px 10px;border-radius:var(--radius-full);font-size:11px;font-weight:600;border:1.5px solid var(--border-color-strong);color:var(--text-tertiary);transition:all var(--transition-fast)}.cat-selector button.selected-a{background:var(--accent-blue);border-color:var(--accent-blue);color:white}.cat-selector button.selected-b{background:var(--accent-purple);border-color:var(--accent-purple);color:white}.result-section{padding:20px;background:var(--bg-secondary);border-radius:var(--radius-lg);margin-bottom:24px}.result-section-title{font-size:16px;font-weight:700;margin-bottom:4px}.result-section-desc{font-size:13px;color:var(--text-tertiary);margin-bottom:16px}.result-upload-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.result-upload-card{border:2px dashed var(--border-color-strong);border-radius:var(--radius-md);padding:16px;text-align:center;cursor:pointer;transition:all var(--transition-fast);background:var(--bg-primary)}.result-upload-card:hover{border-color:var(--accent-blue);background:var(--accent-blue-light)}.result-upload-card.has-image{border-style:solid;border-color:var(--accent-green);padding:4px}.result-upload-card.has-image img{width:100%;border-radius:var(--radius-sm);object-fit:cover;aspect-ratio:1}.result-upload-label{font-size:12px;font-weight:600;color:var(--text-tertiary);margin-top:8px}.result-upload-icon{color:var(--text-tertiary);margin-bottom:4px}.result-message-input{width:100%;padding:10px 12px;background:var(--bg-secondary);border-radius:var(--radius-sm);font-size:13px;margin-top:8px;resize:none}.result-message-input:focus{box-shadow:0 0 0 2px var(--accent-blue);background:var(--bg-primary)}.play-header{padding:16px 0;display:flex;align-items:center;justify-content:space-between}.play-title{font-size:20px;font-weight:700;letter-spacing:-.3px}.play-progress{display:flex;align-items:center;gap:8px;margin-bottom:20px}.play-progress-bar{flex:1 1;height:6px;background:var(--bg-tertiary);border-radius:var(--radius-full);overflow:hidden}.play-progress-fill{height:100%;background:var(--accent-blue);border-radius:var(--radius-full);transition:width var(--transition-smooth)}.play-progress-text{font-size:13px;font-weight:600;color:var(--text-secondary);white-space:nowrap}.submit-btn{width:100%;padding:16px;background:var(--accent-blue);color:white;border-radius:var(--radius-lg);font-size:17px;font-weight:700;transition:transform var(--transition-fast),box-shadow var(--transition-fast);box-shadow:0 4px 16px rgba(0,122,255,.25)}.submit-btn:active{transform:scale(.97)}.submit-btn:disabled{background:var(--bg-tertiary);color:var(--text-tertiary);box-shadow:none}.result-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:80vh;padding:20px;text-align:center}.result-image-container{width:240px;height:240px;border-radius:var(--radius-2xl);overflow:hidden;margin-bottom:24px;box-shadow:var(--shadow-xl)}.result-image-container img{width:100%;height:100%;object-fit:cover}.result-image-placeholder{width:100%;height:100%;background:var(--bg-secondary);display:flex;align-items:center;justify-content:center;font-size:80px}.result-score{font-size:56px;font-weight:800;letter-spacing:-2px;margin-bottom:4px}.result-score.perfect{background:linear-gradient(135deg,var(--accent-blue),var(--accent-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.result-score.good{color:var(--accent-green)}.result-score.bad{color:var(--accent-red)}.result-message{font-size:18px;font-weight:600;color:var(--text-primary);margin-bottom:8px;line-height:1.4}.result-submessage{font-size:14px;color:var(--text-secondary);margin-bottom:32px;line-height:1.5;max-width:300px}.result-actions{display:flex;flex-direction:column;gap:10px;width:100%;max-width:300px}.result-retry-btn{width:100%;padding:16px;background:var(--accent-blue);color:white;border-radius:var(--radius-lg);font-size:17px;font-weight:700;transition:transform var(--transition-fast)}.result-retry-btn:active{transform:scale(.97)}.result-share-btn{width:100%;padding:16px;background:var(--bg-secondary);color:var(--text-primary);border-radius:var(--radius-lg);font-size:17px;font-weight:600;transition:transform var(--transition-fast)}.result-share-btn:active{transform:scale(.97)}.result-home-btn{width:100%;padding:14px;color:var(--accent-blue);font-size:15px;font-weight:600}.mistakes-list{width:100%;max-width:400px;margin-top:24px;text-align:left}.mistakes-title{font-size:16px;font-weight:700;margin-bottom:12px}.mistake-card{padding:14px;background:var(--bg-secondary);border-radius:var(--radius-md);margin-bottom:8px}.mistake-item-name{font-size:15px;font-weight:600;margin-bottom:4px}.mistake-detail{font-size:13px;color:var(--text-secondary);line-height:1.4}.mistake-correction{font-size:13px;color:var(--accent-red);font-weight:500}.empty-state{display:flex;flex-direction:column;align-items:center;padding:40px 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.retry-link{margin-top:12px;color:var(--accent-blue);font-weight:600;text-decoration:underline;cursor:pointer}.empty-cta-container{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:calc(var(--vpx) * 48) calc(var(--vpx) * 24);background:var(--bg-secondary);border-radius:var(--radius-xl);margin:0;border:calc(var(--vpx) * 1) solid var(--border-color);gap:calc(var(--vpx) * 16);flex:1 1}.empty-cta-container>*{margin:0;line-height:1.2}.empty-cta-btn{display:inline-flex;align-items:center;justify-content:center;gap:calc(var(--vpx) * 8);padding:calc(var(--vpx) * 12) calc(var(--vpx) * 24);background:var(--bg-primary);color:var(--text-secondary);border:calc(var(--vpx) * 1) solid var(--border-color-strong);border-radius:var(--radius-md);font-size:calc(var(--vpx) * 15);font-weight:500;transition:all var(--transition-fast)}.empty-cta-btn:active{transform:scale(.98);background:var(--bg-secondary)}.toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%);padding:12px 24px;background:var(--text-primary);color:var(--bg-primary);border-radius:var(--radius-full);font-size:14px;font-weight:600;box-shadow:var(--shadow-lg);z-index:200}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);display:flex;align-items:flex-end;justify-content:center;z-index:2000}.modal-overlay.centered{align-items:center;padding:20px}.modal-content{background:var(--bg-primary);width:100%;max-width:500px;border-top-left-radius:24px;border-top-right-radius:24px;padding:24px;max-height:90vh;display:flex;flex-direction:column;box-shadow:0 -10px 40px rgba(0,0,0,.1)}.modal-content.centered{border-radius:24px}.modal-header-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.modal-title{font-size:20px;font-weight:700;color:var(--text-primary)}.modal-close-btn{padding:8px;color:var(--text-tertiary);cursor:pointer}.modal-body{flex:1 1;overflow-y:auto;margin:0 -24px;padding:0 24px}.modal-search-wrapper{gap:12px;background:var(--bg-secondary);border-radius:12px;margin-bottom:16px}.cat-list-item,.modal-search-wrapper{display:flex;align-items:center;padding:10px 16px}.cat-list-item{justify-content:space-between;border-bottom:1px solid var(--border-color);cursor:pointer;transition:background .2s;border-radius:8px}.cat-list-item:hover{background:var(--bg-secondary)}.cat-list-item-left{display:flex;align-items:center;gap:12px;flex:1 1;min-width:0}.cat-list-item-title{font-size:15px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cat-list-item-path{font-size:12px;color:var(--text-tertiary);margin-bottom:2px}.cat-select-action{padding:6px 12px;background:var(--accent-blue-light);color:var(--accent-blue);border-radius:8px;font-size:13px;font-weight:600}.cat-delete-action{padding:6px;color:var(--text-tertiary)}.breadcrumb-item{font-size:14px;font-weight:500;color:var(--text-secondary);display:flex;align-items:center;gap:4px}.breadcrumb-item.active{color:var(--accent-blue);font-weight:700}.breadcrumb-divider{margin:0 8px;color:var(--text-tertiary)}.skeleton{background:var(--bg-tertiary);background:linear-gradient(90deg,var(--bg-tertiary) 25%,var(--bg-secondary) 50%,var(--bg-tertiary) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-md);border:none!important}.skeleton-text{height:14px;width:100%;margin-bottom:8px;border-radius:4px}.skeleton-icon{width:48px;height:48px;border-radius:var(--radius-md)}.skeleton-card-horizontal{flex:0 0 160px;height:160px;border-radius:var(--radius-lg);background:var(--bg-primary);border:1px solid var(--border-color);padding:16px;display:flex;flex-direction:column}.skeleton-category-card{min-width:120px;height:110px;border-radius:16px;background:var(--bg-secondary);display:flex;flex-direction:column;align-items:center;gap:12px;padding:20px 16px}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.animate-fade-in{animation:fadeInUp .5s ease-out}.animate-scale-in{animation:scaleIn .4s ease-out}.animate-bounce{animation:bounce 1s ease-in-out infinite}@media (max-width:767px){.nav-item{min-height:44px;min-width:48px}.add-item-btn,.add-submit-btn,.back-btn,.category-pill,.empty-cta-btn,.modal-close-btn,.publish-btn,.result-home-btn,.result-retry-btn,.result-share-btn,.retry-btn,.search-submit-btn,.submit-btn{min-height:44px;min-width:44px}.page-content{padding-top:env(safe-area-inset-top,0)}.app-container{padding-left:env(safe-area-inset-left,0);padding-right:env(safe-area-inset-right,0)}}@media (min-width:768px){:root{--vpx:1px;--radius-sm:3px;--radius-md:4px;--radius-lg:6px;--radius-xl:6px;--radius-2xl:6px;--shadow-sm:none;--shadow-md:none;--shadow-lg:none;--shadow-xl:none;--bg-primary:transparent;--bg-secondary:rgba(255,255,255,0.05);--bg-tertiary:rgba(255,255,255,0.08)}body{font-size:14px}.dark 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