:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial}
body{background:#f5f7fa;margin:0;padding:20px}
.container{max-width:640px;margin:0 auto;background:white;padding:24px;border-radius:8px;box-shadow:0 6px 18px rgba(0,0,0,0.06)}
h1{margin-top:0}
.add-form{display:flex;gap:8px;margin-bottom:16px}
.add-form input{flex:1;padding:8px 10px;border:1px solid #ddd;border-radius:6px}
.add-form button{padding:8px 12px;border:none;border-radius:6px;background:#4f46e5;color:white}
.tasks{list-style:none;padding:0;margin:0}
.task{display:flex;align-items:center;gap:8px;padding:8px 0;border-top:1px solid #f0f0f0}
.task .inline{display:inline;margin:0}
.small{border:none;background:transparent;padding:6px 8px;border-radius:6px;cursor:pointer}
.small:hover{background:#f0f0ff}
.danger{color:#dc2626}
.title{flex:1}
.done .title{text-decoration:line-through;color:#6b7280}
.empty{color:#9ca3af;padding:12px 0}