: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}}*{box-sizing:border-box;margin:0;padding:0}body{background:linear-gradient(180deg,#0b132b,#020617);display:flex;justify-content:center;align-items:flex-start;padding-top:60px;font-family:Arial,Helvetica,sans-serif;color:#e5e7eb}.app{max-width:500px;margin:0 auto;background:#111827;border-radius:16px;box-shadow:0 20px 60px #0009;overflow:hidden}.app-header{background:#1e293b;padding:24px;text-align:center}.app-header h1{color:#f9fafb;font-size:24px;margin-bottom:8px}.task-count{color:#c7d2fe;font-size:14px}.app-main{padding:24px}.task-form{display:flex;gap:10px;margin-bottom:20px}.task-input{flex:1;padding:12px 16px;background:#020617;border:2px solid #374151;border-radius:8px;color:#e5e7eb;font-size:16px}.task-input::placeholder{color:#6b7280}.task-input:focus{outline:none;border-color:#6366f1}.add-button{padding:12px 20px;background:#6366f1;color:#fff;border:none;border-radius:8px;font-size:16px;cursor:pointer}.add-button:hover{background:#4f46e5}.filter-buttons{display:flex;gap:8px;margin-bottom:20px}.filter-btn{flex:1;padding:10px;background:#020617;border:2px solid #374151;border-radius:8px;color:#e5e7eb;font-size:14px;cursor:pointer}.filter-btn.active{background:#6366f1;border-color:#6366f1;color:#fff}.task-list{list-style:none}.task-list.empty{text-align:center;color:#9ca3af;padding:40px 20px;font-style:italic}.task-item{display:flex;align-items:center;gap:12px;padding:14px;border-bottom:1px solid #1f2937}.task-item:last-child{border-bottom:none}.task-label{display:flex;align-items:center;gap:12px;flex:1;cursor:pointer}.task-label input[type=checkbox]{width:20px;height:20px;accent-color:#6366f1;cursor:pointer}.task-item .task-text{font-size:16px;color:#e5e7eb}.task-item.completed .task-text{text-decoration:line-through;color:#9ca3af}.delete-btn{background:transparent;border:none;color:#f87171;font-size:18px;cursor:pointer;opacity:.6}.delete-btn:hover{opacity:1}@media(max-width:480px){body{padding:10px}.task-form{flex-direction:column}.filter-buttons{flex-wrap:wrap}.filter-btn{flex:1 1 calc(33% - 8px)}}