* { box-sizing: border-box; }
body {
  font-family: system-ui, sans-serif;
  background: #f4f6f8;
  margin: 0;
  padding: 40px 16px;
}
.container {
  max-width: 560px;
  margin: auto;
  background: #fff;
  padding: 24px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,.08);
}
.subtitle { color: #666; font-size: 14px; }
form { display: flex; gap: 8px; margin: 16px 0; }
input { flex: 1; padding: 10px; border: 1px solid #ccc; border-radius: 6px; }
button { padding: 10px 16px; border: none; border-radius: 6px; background: #f38020; color: #fff; cursor: pointer; }
button:hover { opacity: .9; }
ul { list-style: none; padding: 0; }
li { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid #eee; }
.del { background: #d9534f; padding: 6px 10px; }
#status { color: #c00; min-height: 1em; }