*{box-sizing:border-box;margin:0;padding:0}:root{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh;color:#1a202c;background-color:#f5f7fa}#root{min-height:100vh}a{font-weight:500;color:#667eea;text-decoration:none}a:hover{color:#5568d3;text-decoration:underline}button{font-family:inherit}*{scrollbar-width:thin;scrollbar-color:#cbd5e0 #f7fafc}*::-webkit-scrollbar{width:8px;height:8px}*::-webkit-scrollbar-track{background:#f7fafc}*::-webkit-scrollbar-thumb{background:#cbd5e0;border-radius:4px}*::-webkit-scrollbar-thumb:hover{background:#a0aec0}.task-creation-stepper{max-width:900px;margin:0 auto;padding:2rem}.stepper-progress{display:flex;justify-content:space-between;margin-bottom:3rem;position:relative}.stepper-progress:before{content:"";position:absolute;top:24px;left:60px;right:60px;height:3px;background:#e2e8f0;z-index:0}.step{display:flex;flex-direction:column;align-items:center;gap:.75rem;flex:1;position:relative;z-index:1}.step-icon{width:48px;height:48px;border-radius:50%;background:#fff;border:3px solid #e2e8f0;display:flex;align-items:center;justify-content:center;color:#cbd5e0;transition:all .3s}.step.active .step-icon{border-color:#667eea;color:#667eea;background:#eef2ff}.step.completed .step-icon{border-color:#48bb78;background:linear-gradient(135deg,#48bb78,#38a169);color:#fff}.step-title{font-size:.9rem;font-weight:500;color:#a0aec0;text-align:center;transition:color .3s}.step.active .step-title{color:#667eea;font-weight:600}.step.completed .step-title{color:#48bb78}.stepper-content{background:#fff;border-radius:16px;padding:3rem;box-shadow:0 4px 20px #00000014;min-height:400px}.step-content{display:flex;flex-direction:column}.step-content h2{font-size:2rem;font-weight:700;color:#1a202c;margin:0 0 .5rem}.step-content p{color:#718096;font-size:1rem;margin:0 0 2rem}.form-group{margin-bottom:2rem}.form-group label{display:block;font-weight:600;color:#2d3748;margin-bottom:.75rem;font-size:.95rem}.input-field{width:100%;padding:.875rem 1rem;border:2px solid #e2e8f0;border-radius:8px;font-size:1rem;transition:all .2s;font-family:inherit}.input-field:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.upload-section{display:flex;flex-direction:column;gap:1.5rem}.upload-area{position:relative}.file-input{display:none}.file-label{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem 2rem;border:3px dashed #cbd5e0;border-radius:12px;cursor:pointer;transition:all .3s;background:#f7fafc}.file-label:hover{border-color:#667eea;background:#eef2ff}.upload-icon{color:#667eea;margin-bottom:1rem}.upload-text{font-size:1.1rem;font-weight:600;color:#2d3748;margin-bottom:.5rem}.upload-subtext{font-size:.9rem;color:#718096}.btn-link{background:none;border:none;color:#667eea;font-size:.95rem;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:.5rem;padding:.5rem 0;transition:color .2s}.btn-link:hover{color:#5568d3;text-decoration:underline}.error-message,.success-message{display:flex;align-items:center;gap:.75rem;padding:1rem 1.25rem;border-radius:8px;font-size:.95rem;font-weight:500}.error-message{background:#fff5f5;color:#c53030;border:1px solid #feb2b2}.success-message{background:#f0fff4;color:#276749;border:1px solid #9ae6b4}.data-preview{background:#f7fafc;border-radius:8px;padding:1.5rem}.data-preview h4{font-size:1rem;font-weight:600;color:#2d3748;margin:0 0 1rem}.preview-table{overflow-x:auto}.preview-table table{width:100%;border-collapse:collapse;background:#fff;border-radius:6px;overflow:hidden}.preview-table thead{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.preview-table th,.preview-table td{padding:.75rem 1rem;text-align:left}.preview-table tbody tr{border-bottom:1px solid #e2e8f0}.preview-table tbody tr:last-child{border-bottom:none}.preview-note{color:#718096;font-size:.85rem;margin:.75rem 0 0;text-align:center}.step-content.processing{text-align:center;justify-content:center}.processing-animation{margin-bottom:2rem}.spinner{color:#667eea;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.progress-bar-container{margin:2rem auto;width:100%;max-width:400px}.progress-bar{height:12px;background:#e2e8f0;border-radius:6px;overflow:hidden;margin-bottom:.5rem}.progress-fill{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);transition:width .3s ease;border-radius:6px}.progress-text{display:block;text-align:center;font-weight:600;color:#667eea;font-size:1.1rem}.processing-details{margin-top:2rem}.processing-details p{margin:.5rem 0;color:#718096;font-size:.95rem}.step-content.complete{text-align:center;justify-content:center}.success-icon{margin-bottom:1.5rem;color:#48bb78}.completion-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin:2rem 0}.stat{background:#f7fafc;padding:1.5rem;border-radius:8px;display:flex;flex-direction:column;gap:.5rem}.stat-label{font-size:.85rem;color:#718096;font-weight:500}.stat-value{font-size:1.5rem;font-weight:700;color:#2d3748}.redirect-message{color:#667eea;font-weight:500;margin-top:1rem}.step-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:auto;padding-top:2rem}.btn-primary,.btn-secondary{padding:.75rem 2rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit}@media(max-width:768px){.task-creation-stepper{padding:1rem}.stepper-content{padding:2rem 1.5rem}.step-content h2{font-size:1.5rem}.stepper-progress{margin-bottom:2rem}.step-title{font-size:.75rem}.step-icon{width:40px;height:40px}.step-actions{flex-direction:column-reverse}.btn-primary,.btn-secondary{width:100%}}.report-view{padding:2rem;max-width:1400px;margin:0 auto}.report-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}.report-title-section h2{font-size:2rem;font-weight:700;color:#1a202c;margin:0 0 .5rem}.report-subtitle{color:#718096;font-size:.95rem;margin:0}.report-actions{display:flex;gap:.75rem;flex-wrap:wrap}.btn-primary,.btn-secondary{display:flex;align-items:center;gap:.5rem;padding:.65rem 1.25rem;border:none;border-radius:8px;font-size:.95rem;font-weight:500;cursor:pointer;transition:all .2s}.summary-section{background:#fff;border-radius:12px;padding:2rem;margin-bottom:2rem;box-shadow:0 2px 8px #00000014}.summary-section h3{font-size:1.5rem;font-weight:600;color:#2d3748;margin:0 0 1.5rem}.summary-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem}.summary-card{padding:1.5rem;border-radius:10px;text-align:center}.summary-card.total{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.summary-card.patterns{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff}.card-value{font-size:2.5rem;font-weight:700;margin-bottom:.5rem}.card-label{font-size:.95rem;opacity:.95}.top-errors{margin-top:2rem}.top-errors h4{font-size:1.15rem;font-weight:600;color:#2d3748;margin:0 0 1rem}.error-bars{display:flex;flex-direction:column;gap:.75rem}.error-bar-container{display:flex;align-items:center;gap:1rem}.error-bar-label{min-width:180px;font-size:.9rem;font-weight:500;color:#4a5568}.error-bar-wrapper{flex:1;height:28px;background:#f0f4f8;border-radius:6px;position:relative;overflow:hidden}.error-bar-fill{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);transition:width .6s ease;border-radius:6px}.error-bar-count{position:absolute;right:8px;top:50%;transform:translateY(-50%);font-size:.85rem;font-weight:600;color:#2d3748}.teacher-view,.detailed-view{background:#fff;border-radius:12px;padding:2rem;margin-bottom:2rem;box-shadow:0 2px 8px #00000014}.teacher-view h3,.detailed-view h3{font-size:1.5rem;font-weight:600;color:#2d3748;margin:0 0 1.5rem}.detailed-view-subtitle{color:#718096;font-size:.9rem;margin:-.75rem 0 1.5rem}.table-wrapper{overflow-x:auto;border-radius:8px;border:1px solid #e2e8f0}.report-table{width:100%;border-collapse:collapse;font-size:.9rem}.report-table thead tr{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.report-table thead th{padding:1rem;text-align:left;font-weight:600;white-space:nowrap}.report-table tbody tr{border-bottom:1px solid #e2e8f0;transition:background .2s}.report-table tbody tr:hover{background:#f7fafc}.report-table tbody tr.expanded{background:#edf2f7}.report-table tbody td{padding:1rem}.word-cell{font-weight:600;font-size:1rem}.word-cell.target-word{color:#2d3748}.word-cell.miscue{color:#e53e3e}.phoneme-cell{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:.95rem}.phoneme-comparison{display:flex;align-items:center;gap:.75rem}.phoneme-target{color:#2e7d32;font-weight:700;font-size:1rem;background:#e8f5e9;padding:.35rem .6rem;border-radius:4px}.phoneme-arrow{color:#718096;font-size:1.1rem;font-weight:500}.phoneme-miscue{color:#c62828;font-weight:700;font-size:1rem;background:#ffebee;padding:.35rem .6rem;border-radius:4px}.notes-cell{color:#4a5568;line-height:1.5;max-width:300px}.expand-cell{text-align:center;width:50px}.expand-btn{background:none;border:none;color:#667eea;cursor:pointer;padding:.25rem;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:all .2s}.expand-btn:hover{background:#edf2f7;transform:scale(1.1)}.detail-row{background:#f7fafc!important;border-bottom:2px solid #e2e8f0!important}.detail-row td{padding:1.5rem!important}.error-details-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:.75rem;animation:slideDown .3s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.error-detail-item{display:flex;flex-direction:column;align-items:center;padding:1rem;background:#fff;border:2px solid #e2e8f0;border-radius:8px;transition:all .2s}.error-detail-item.active{background:linear-gradient(135deg,#e6f7ff,#e6fffa);border-color:#48bb78}.error-detail-item .error-icon{font-size:1.5rem;font-weight:700;margin-bottom:.5rem;color:#cbd5e0}.error-detail-item.active .error-icon{color:#48bb78}.error-detail-item .error-label{font-size:.8rem;color:#718096;font-weight:600;text-align:center;line-height:1.3}.error-detail-item.active .error-label{color:#2d3748}.error-flags{display:flex;flex-wrap:wrap;gap:.5rem}.error-flag{padding:.4rem .8rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:6px;font-size:.85rem;font-weight:500}.report-table.detailed thead tr.header-legend{background:#edf2f7;color:#4a5568;font-size:.75rem}.report-table.detailed thead th{padding:.5rem;text-align:center;font-size:.85rem}.report-table.detailed tbody td{text-align:center;padding:.75rem .5rem;font-family:Courier New,monospace}.report-table.detailed tbody td.flag-set{background:linear-gradient(135deg,#fef5e7,#fdebd0);color:#d35400;font-weight:700}@media(max-width:768px){.report-view{padding:1rem}.report-header{flex-direction:column;align-items:stretch}.report-actions{flex-direction:column}.btn-primary,.btn-secondary{justify-content:center}.summary-cards{grid-template-columns:1fr}.error-bar-label{min-width:auto;font-size:.85rem}.report-table{font-size:.8rem}.report-table thead th,.report-table tbody td{padding:.75rem .5rem}}.settings-overlay{position:fixed;inset:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:2000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.settings-container{background:#fff;border-radius:20px;width:95%;max-width:1200px;height:95vh;display:flex;flex-direction:column;box-shadow:0 20px 60px #0000004d;animation:slideUp .4s cubic-bezier(.34,1.56,.64,1);overflow:hidden}@keyframes slideUp{0%{opacity:0;transform:translateY(30px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.settings-header{display:flex;justify-content:space-between;align-items:center;padding:1.25rem 2rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.settings-header-left{display:flex;align-items:center;gap:.75rem}.settings-icon-wrapper{width:40px;height:40px;background:#fff3;border-radius:10px;display:flex;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.settings-sparkle-icon{width:20px;height:20px}.settings-header-text h2{margin:0;font-size:1.35rem;font-weight:700}.settings-header-text p{margin:0;font-size:.8rem;opacity:.9}.settings-close-btn{width:44px;height:44px;border:none;background:#fff3;border-radius:10px;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.settings-close-btn:hover{background:#ffffff4d;transform:rotate(90deg)}.settings-status-badge{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem 1rem;background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff;border-radius:8px;font-size:.8rem;font-weight:600;margin:-.5rem 2rem 0;box-shadow:0 2px 8px #f5576c4d}@keyframes slideInFromTop{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.settings-tabs{display:flex;gap:.5rem;padding:.75rem 2rem 0;border-bottom:2px solid #e2e8f0}.settings-tab{display:flex;align-items:center;gap:.4rem;padding:.5rem 1rem;border:none;background:transparent;color:#718096;font-size:.85rem;font-weight:600;cursor:pointer;border-radius:8px 8px 0 0;transition:all .2s;position:relative}.settings-tab:after{content:"";position:absolute;bottom:-2px;left:0;right:0;height:2px;background:transparent;transition:background .2s}.settings-tab:hover{background:#f7fafc;color:#4a5568}.settings-tab.active{color:#667eea;background:#eef2ff}.settings-tab.active:after{background:linear-gradient(90deg,#667eea,#764ba2)}.settings-content{flex:1;overflow:hidden;display:flex;flex-direction:column}.editor-section{flex:1;display:flex;flex-direction:column;overflow:hidden}.editor-toolbar{padding:.5rem 2rem;background:#f7fafc;border-bottom:1px solid #e2e8f0}.editor-stats{display:flex;align-items:center;gap:.6rem;font-size:.75rem}.stat-item{display:flex;align-items:center;gap:.4rem}.stat-label{color:#718096;font-weight:500}.stat-value{color:#2d3748;font-weight:700;font-family:Courier New,monospace;background:#fff;padding:.2rem .5rem;border-radius:4px;border:1px solid #e2e8f0}.stat-divider{color:#cbd5e0}.prompt-editor{flex:1;padding:1.5rem 2rem;border:none;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:1.1rem;line-height:1.8;resize:none;outline:none;background:#fafbfc;color:#000;overflow-y:auto}.prompt-editor::placeholder{color:#a0aec0}.prompt-editor::-webkit-scrollbar{width:12px}.prompt-editor::-webkit-scrollbar-track{background:#edf2f7}.prompt-editor::-webkit-scrollbar-thumb{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:6px}.prompt-editor::-webkit-scrollbar-thumb:hover{background:linear-gradient(135deg,#5568d3,#6a3d8a)}.editor-help{padding:.75rem 2rem;background:#fef3c7;border-top:1px solid #fbbf24}.help-item{display:flex;gap:.75rem;align-items:center}.help-icon{font-size:1.2rem;line-height:1}.help-text{font-size:.8rem;color:#78350f;line-height:1.4}.help-text strong{font-weight:700;color:#92400e}.preview-section{flex:1;overflow:hidden;display:flex;flex-direction:column}.preview-content{flex:1;padding:2rem 2.5rem;overflow-y:auto;background:#fafbfc;font-family:Courier New,Monaco,monospace;font-size:.9rem;line-height:1.7;color:#2d3748}.preview-line{border-left:3px solid transparent;padding:.15rem 0 .15rem 1rem;transition:all .2s}.preview-line:hover{background:#eef2ff;border-left-color:#667eea}.empty-line{display:inline-block;width:100%;height:1em}.preview-content::-webkit-scrollbar{width:12px}.preview-content::-webkit-scrollbar-track{background:#edf2f7}.preview-content::-webkit-scrollbar-thumb{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:6px}.settings-actions{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background:#f7fafc;border-top:2px solid #e2e8f0}.settings-actions-left,.settings-actions-right{display:flex;align-items:center;gap:1rem}.btn-reset{display:flex;align-items:center;gap:.4rem;padding:.6rem 1.2rem;border:2px solid #e2e8f0;background:#fff;color:#e53e3e;border-radius:8px;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit}.btn-reset:hover:not(:disabled){background:#fff5f5;border-color:#feb2b2;transform:translateY(-1px)}.btn-reset:disabled{opacity:.5;cursor:not-allowed}.save-status{display:flex;align-items:center;gap:.4rem;padding:.6rem 1rem;border-radius:6px;font-size:.8rem;font-weight:600;animation:slideInFromRight .3s ease}@keyframes slideInFromRight{0%{opacity:0;transform:translate(10px)}to{opacity:1;transform:translate(0)}}.save-status.success{background:#f0fff4;color:#276749;border:1px solid #9ae6b4}.save-status.error{background:#fff5f5;color:#c53030;border:1px solid #feb2b2}.btn-secondary{padding:.6rem 1.2rem;border:2px solid #e2e8f0;background:#fff;color:#4a5568;border-radius:8px;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit}.btn-secondary:hover{border-color:#cbd5e0;background:#f7fafc;transform:translateY(-1px)}.btn-primary{display:flex;align-items:center;gap:.4rem;padding:.6rem 1.4rem;border:none;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:8px;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit;box-shadow:0 2px 8px #667eea4d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}@media(max-width:768px){.settings-container{width:100%;max-height:100vh;border-radius:0}.settings-header{padding:1.5rem}.settings-icon-wrapper{width:48px;height:48px}.settings-header-text h2{font-size:1.5rem}.settings-tabs{padding:1rem 1.5rem 0}.settings-tab{padding:.65rem 1rem;font-size:.85rem}.prompt-editor,.preview-content{padding:1.5rem;font-size:.85rem}.editor-toolbar,.editor-help{padding:1rem 1.5rem}.settings-actions{flex-direction:column;gap:1rem;padding:1.5rem}.settings-actions-left,.settings-actions-right{width:100%;flex-direction:column}.btn-reset,.btn-secondary,.btn-primary{width:100%;justify-content:center}}.app{min-height:100vh;display:flex;flex-direction:column;background:linear-gradient(135deg,#f5f7fa,#c3cfe2)}.app-header{background:#fff;box-shadow:0 2px 8px #0000001a;padding:1.5rem 0}.header-content{max-width:1400px;margin:0 auto;padding:0 2rem;display:flex;justify-content:space-between;align-items:center}.logo-section{display:flex;align-items:center;gap:1rem}.logo-icon{color:#667eea}.logo-text h1{font-size:1.75rem;font-weight:700;margin:0;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.logo-text p{font-size:.85rem;color:#718096;margin:0}.header-actions{display:flex;gap:.75rem}.btn-icon{width:40px;height:40px;border:none;background:#f7fafc;border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;color:#4a5568}.btn-icon:hover{background:#edf2f7;color:#667eea}.app-main{flex:1;padding:2rem 0}.home-view{max-width:1400px;margin:0 auto;padding:0 2rem}.welcome-section{background:#fff;border-radius:16px;padding:3rem;margin-bottom:3rem;text-align:center;box-shadow:0 4px 20px #00000014}.welcome-section h2{font-size:2.5rem;font-weight:700;color:#1a202c;margin:0 0 1rem}.welcome-text{font-size:1.15rem;color:#4a5568;line-height:1.6;max-width:700px;margin:0 auto 2rem}.btn-create-task{display:inline-flex;align-items:center;gap:.75rem;padding:1rem 2.5rem;border:none;border-radius:12px;font-size:1.1rem;font-weight:600;cursor:pointer;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;transition:all .3s;font-family:inherit}.btn-create-task:hover{transform:translateY(-3px);box-shadow:0 8px 20px #667eea66}.task-history{margin-top:3rem}.task-history h3{font-size:1.75rem;font-weight:600;color:#2d3748;margin:0 0 1.5rem}.task-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.task-card{background:#fff;border-radius:12px;padding:1.5rem;box-shadow:0 2px 8px #00000014;transition:all .3s;cursor:pointer;display:flex;flex-direction:column}.task-card:hover{transform:translateY(-4px);box-shadow:0 8px 20px #0000001f}.task-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.task-icon{color:#667eea}.task-delete-btn{background:none;border:none;color:#cbd5e0;cursor:pointer;padding:.5rem;border-radius:6px;transition:all .2s}.task-delete-btn:hover{background:#fff5f5;color:#e53e3e}.task-card-body{flex:1;margin-bottom:1rem}.task-card-body h4{font-size:1.15rem;font-weight:600;color:#2d3748;margin:0 0 .75rem;line-height:1.4}.task-meta{display:flex;flex-direction:column;gap:.25rem;font-size:.85rem;color:#718096}.task-card-footer{padding-top:1rem;border-top:1px solid #e2e8f0}.btn-view-task{width:100%;padding:.75rem;border:none;border-radius:8px;font-weight:600;cursor:pointer;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;transition:all .2s;font-family:inherit}.btn-view-task:hover{opacity:.9}.empty-state{text-align:center;padding:4rem 2rem}.empty-icon{color:#cbd5e0;margin-bottom:1.5rem}.empty-state h3{font-size:1.5rem;font-weight:600;color:#2d3748;margin:0 0 .5rem}.empty-state p{color:#718096;font-size:1rem}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal{background:#fff;border-radius:16px;max-width:500px;width:90%;box-shadow:0 20px 60px #0000004d;animation:modalSlideIn .3s ease}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.modal-header{padding:2rem 2rem 1rem;text-align:center}.modal-icon{color:#667eea;margin-bottom:1rem}.modal-header h2{font-size:1.75rem;font-weight:700;color:#1a202c;margin:0 0 .5rem}.modal-header p{color:#718096;font-size:1rem;margin:0}.modal-body{padding:1rem 2rem}.api-key-input{width:100%;padding:.875rem 1rem;border:2px solid #e2e8f0;border-radius:8px;font-size:1rem;font-family:Courier New,monospace;transition:all .2s}.api-key-input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.api-key-note{font-size:.85rem;color:#718096;margin:.75rem 0 0;line-height:1.5}.modal-actions{padding:1rem 2rem 2rem;display:flex;gap:1rem;justify-content:flex-end}.btn-primary,.btn-secondary{padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:#fff;color:#4a5568;border:2px solid #e2e8f0}.btn-secondary:hover{border-color:#cbd5e0;background:#f7fafc}.app-footer{background:#fff;padding:2rem;text-align:center;border-top:1px solid #e2e8f0;margin-top:auto}.app-footer p{margin:.25rem 0;color:#718096;font-size:.9rem}@media(max-width:768px){.header-content{flex-direction:column;gap:1rem;text-align:center}.welcome-section{padding:2rem 1.5rem}.welcome-section h2{font-size:2rem}.task-grid{grid-template-columns:1fr}.modal-actions{flex-direction:column-reverse}.btn-primary,.btn-secondary{width:100%}}