:root{font-family:Inter,system-ui,Arial,sans-serif;color:#172033;background:#eef2f7}*{box-sizing:border-box}body{margin:0}.shell{min-height:100vh;display:grid;place-items:center;padding:32px 16px}.card{width:min(760px,100%);background:#fff;border-radius:18px;padding:30px;box-shadow:0 18px 55px #1018281f}.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-weight:700;font-size:12px;margin:0 0 8px}h1{margin:0 0 8px;font-size:34px}.sub{margin:0 0 20px;line-height:1.55;color:#526076}.health{padding:10px 12px;background:#edf8f0;border-radius:10px;margin-bottom:18px;font-size:14px}.error{padding:10px 12px;background:#fff0f0;border-radius:10px;margin-bottom:18px}.row{display:flex;gap:10px;margin-bottom:18px}input[type=text],.row input{flex:1;border:1px solid #ccd5e1;border-radius:10px;padding:12px;font:inherit}button{border:0;border-radius:10px;padding:10px 15px;cursor:pointer;font-weight:700}.task{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid #e8edf3}.task label{display:flex;align-items:center;gap:10px}.done{text-decoration:line-through;color:#7a879a}.delete{font-size:12px}code{background:#f4f6f8;padding:2px 5px;border-radius:5px}