:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #2563eb;--primary-dark: #1d4ed8;--success-color: #16a34a;--warning-color: #ca8a04;--danger-color: #dc2626;--text-primary: #1f2937;--text-secondary: #6b7280;--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--border-color: #e5e7eb;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--bg-secondary);color:var(--text-primary);line-height:1.5}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,#f0f9ff,#e0f2fe)}.login-card{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:40px;max-width:400px;width:100%;text-align:center}.login-header h1{color:var(--primary-color);font-size:1.8rem;margin-bottom:8px}.login-header p{color:var(--text-secondary);margin-bottom:30px}.login-features{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-bottom:30px}.feature{display:flex;align-items:center;gap:10px;padding:12px;background:var(--bg-tertiary);border-radius:var(--radius-md);font-size:.9rem}.feature-icon{width:30px;height:30px;background:var(--primary-color);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700}.login-button-container{display:flex;justify-content:center}.login-error{margin-top:20px;padding:12px;background:#fef2f2;color:var(--danger-color);border-radius:var(--radius-md);font-size:.9rem}.loading-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px}.loading-spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.app-container{min-height:100vh;display:flex;flex-direction:column}.header{background:var(--bg-primary);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100}.header-content{max-width:1200px;margin:0 auto;padding:15px 20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}.header-left h1{font-size:1.5rem;color:var(--primary-color)}.date-display{font-size:.9rem;color:var(--text-secondary)}.header-right{display:flex;align-items:center;gap:15px}.user-greeting{font-size:.9rem;color:var(--text-secondary)}.btn-logout{padding:8px 16px;background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;font-size:.9rem;transition:all .2s}.btn-logout:hover{background:var(--danger-color);color:#fff;border-color:var(--danger-color)}.main-content{flex:1;max-width:1200px;margin:0 auto;padding:20px;width:100%}.summary-section{margin-bottom:25px}.summary-section h2{font-size:1.2rem;color:var(--text-primary);margin-bottom:15px}.summary-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}.summary-card{background:var(--bg-primary);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-md);border:1px solid var(--border-color)}.summary-card h3{font-size:1rem;color:var(--text-secondary);margin-bottom:15px}.summary-stats{display:flex;justify-content:space-between;margin-bottom:15px}.stat-item{text-align:center}.stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--text-primary)}.stat-value.pending{color:var(--warning-color)}.stat-value.overdue{color:var(--danger-color)}.stat-label{font-size:.8rem;color:var(--text-secondary)}.progress-bar{height:8px;background:var(--bg-tertiary);border-radius:4px;overflow:hidden}.progress-fill{height:100%;border-radius:4px;transition:width .3s ease}.habits-progress{background:linear-gradient(90deg,#3b82f6,#2563eb)}.todos-progress{background:linear-gradient(90deg,#22c55e,#16a34a)}.overall-card{display:flex;flex-direction:column}.overall-progress{display:flex;align-items:center;gap:20px;flex:1}.progress-circle{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color),var(--success-color));display:flex;align-items:center;justify-content:center;flex-shrink:0}.progress-percent{font-size:1.2rem;font-weight:700;color:#fff}.overall-stats p{color:var(--text-secondary)}.action-bar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:15px;margin-bottom:20px;padding:15px;background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.tabs{display:flex;gap:5px;flex-wrap:wrap}.tab{padding:8px 16px;border:none;background:var(--bg-tertiary);color:var(--text-secondary);border-radius:var(--radius-md);cursor:pointer;font-size:.9rem;transition:all .2s}.tab:hover{background:var(--border-color)}.tab.active{background:var(--primary-color);color:#fff}.action-buttons{display:flex;gap:10px}.btn-primary{padding:10px 20px;background:var(--primary-color);color:#fff;border:none;border-radius:var(--radius-md);cursor:pointer;font-size:.9rem;font-weight:500;transition:all .2s}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{padding:10px 20px;background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;font-size:.9rem;transition:all .2s}.btn-secondary:hover{background:var(--border-color)}.error-banner{padding:12px 20px;background:#fef2f2;color:var(--danger-color);border:1px solid #fecaca;border-radius:var(--radius-md);margin-bottom:20px;text-align:center}.form-section{margin-bottom:25px}.task-form{background:var(--bg-primary);border-radius:var(--radius-lg);padding:25px;box-shadow:var(--shadow-md);border:1px solid var(--border-color)}.task-form h3{font-size:1.1rem;color:var(--text-primary);margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid var(--border-color)}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;margin-bottom:15px}.form-group{display:flex;flex-direction:column}.form-group.flex-2{grid-column:span 2}.form-group label{font-size:.9rem;color:var(--text-secondary);margin-bottom:6px;font-weight:500}.form-group input,.form-group select,.form-group textarea{padding:10px 12px;border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:.95rem;color:var(--text-primary);background:var(--bg-primary);transition:border-color .2s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.form-group textarea{resize:vertical;min-height:80px}.checkbox-group{margin-top:10px}.checkbox-label{display:flex;align-items:center;gap:10px;cursor:pointer}.checkbox-label input[type=checkbox]{width:18px;height:18px;cursor:pointer}.checkbox-text{font-size:.95rem;color:var(--text-primary)}.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px;padding-top:20px;border-top:1px solid var(--border-color)}.task-list-section{margin-bottom:20px}.empty-state{text-align:center;padding:60px 20px;background:var(--bg-primary);border-radius:var(--radius-lg);border:1px dashed var(--border-color);color:var(--text-secondary)}.task-list{display:flex;flex-direction:column;gap:12px}.task-card{display:flex;align-items:flex-start;gap:15px;padding:18px;background:var(--bg-primary);border-radius:var(--radius-lg);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);transition:all .2s}.task-card:hover{box-shadow:var(--shadow-md)}.task-card.completed{background:#f0fdf4;border-color:#bbf7d0}.task-card.completed .task-title{text-decoration:line-through;color:var(--text-secondary)}.task-card.due{border-left:4px solid var(--warning-color)}.task-card.overdue{border-left:4px solid var(--danger-color);background:#fef2f2}.task-type-badge{width:36px;height:36px;border-radius:50%;background:var(--primary-color);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700;flex-shrink:0}.task-main{flex:1;min-width:0}.task-header{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:8px;flex-wrap:wrap}.task-title{font-size:1rem;font-weight:600;color:var(--text-primary)}.task-badges{display:flex;gap:6px;flex-wrap:wrap}.badge{padding:3px 8px;border-radius:12px;font-size:.7rem;font-weight:500;color:#fff;text-transform:capitalize}.pi-badge{background:#7c3aed}.task-description{font-size:.9rem;color:var(--text-secondary);margin-bottom:8px;line-height:1.4}.task-meta{display:flex;gap:15px;flex-wrap:wrap}.meta-item{font-size:.8rem;color:var(--text-secondary)}.meta-item.overdue-text{color:var(--danger-color);font-weight:500}.task-actions{display:flex;flex-direction:column;gap:6px;flex-shrink:0}.btn-action{padding:6px 12px;border:none;border-radius:var(--radius-sm);font-size:.8rem;cursor:pointer;transition:all .2s;min-width:60px}.btn-complete{background:var(--success-color);color:#fff}.btn-complete:hover{background:#15803d}.btn-undo{background:var(--warning-color);color:#fff}.btn-undo:hover{background:#a16207}.btn-edit{background:var(--primary-color);color:#fff}.btn-edit:hover{background:var(--primary-dark)}.btn-delete{background:var(--bg-tertiary);color:var(--danger-color);border:1px solid var(--border-color)}.btn-delete:hover{background:var(--danger-color);color:#fff;border-color:var(--danger-color)}.footer{text-align:center;padding:20px;color:var(--text-secondary);font-size:.85rem;border-top:1px solid var(--border-color);background:var(--bg-primary)}@media(max-width:768px){.header-content{flex-direction:column;text-align:center}.header-left h1{font-size:1.3rem}.header-right{width:100%;justify-content:center}.summary-cards{grid-template-columns:1fr}.action-bar{flex-direction:column;align-items:stretch}.tabs,.action-buttons{justify-content:center}.form-group.flex-2{grid-column:span 1}.task-card{flex-direction:column}.task-type-badge{align-self:flex-start}.task-actions{flex-direction:row;width:100%;justify-content:flex-end}}@media(max-width:480px){.main-content{padding:15px}.login-card{padding:25px}.login-features{grid-template-columns:1fr}.tabs{width:100%}.tab{flex:1;text-align:center;padding:8px 10px;font-size:.8rem}.action-buttons{width:100%}.action-buttons button{flex:1}.form-row{grid-template-columns:1fr}.task-header{flex-direction:column;align-items:flex-start}.task-badges{margin-top:5px}.task-meta{flex-direction:column;gap:5px}.summary-stats{flex-wrap:wrap;gap:10px}.stat-item{flex:1;min-width:60px}.stat-value{font-size:1.2rem}}