: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}}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;display:flex;justify-content:center;align-items:center}#root{width:90%;max-width:600px;background:#fffffff2;padding:2rem;border-radius:20px;box-shadow:0 20px 60px #0000004d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}h1{text-align:center;color:#2d3748;margin-bottom:2rem;font-size:2.5rem;font-weight:700}h1:first-child{text-align:center;color:#667eea}#input-box{width:100%;padding:1rem;font-size:1rem;border:2px solid #e2e8f0;border-radius:10px;box-sizing:border-box;margin-bottom:1rem;transition:border-color .3s,box-shadow .3s}#input-box:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}input[type=text][placeholder="Search tasks..."]{width:100%;padding:.8rem 1rem;font-size:.95rem;border:2px solid #e2e8f0;border-radius:10px;box-sizing:border-box;margin:1.5rem 0;transition:border-color .3s,box-shadow .3s}input[type=text][placeholder="Search tasks..."]:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}button{background:#667eea;color:#fff;border:none;padding:1rem 2rem;font-size:1rem;font-weight:600;border-radius:10px;cursor:pointer;transition:background .3s,transform .2s;margin-bottom:1rem}button:hover{background:#5a67d8;transform:translateY(-2px)}button:active{transform:translateY(0)}li button{background:#f56565;padding:.4rem .8rem;font-size:.9rem;margin-left:1rem;border-radius:6px}li button:hover{background:#e53e3e}ul{list-style:none;padding:0;margin:1.5rem 0 0}li{background:#f7fafc;padding:1rem;margin-bottom:.8rem;border-radius:10px;display:flex;justify-content:space-between;align-items:center;transition:background .3s,transform .2s;border:2px solid transparent}li:hover{background:#edf2f7;transform:translate(5px);border-color:#e2e8f0}li span{cursor:pointer;flex:1;color:#2d3748;font-size:1rem;transition:color .3s}li span:hover{color:#667eea}li span[style*=line-through]{color:#a0aec0;opacity:.6}@media(max-width:768px){#root{width:95%;padding:1.5rem}h1{font-size:2rem}button{padding:.8rem 1.5rem;font-size:.95rem}}