body {
  font-family: Arial, sans-serif;
  background: #f1f5f9;
  margin: 0;
  padding: 30px 15px;
}
main {
  max-width: 500px;
  margin: auto;
  padding: 24px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
}
h1 { color: #2563eb; }
form { display: flex; gap: 8px; }
input {
  flex: 1;
  min-width: 0;
  padding: 12px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
}
button {
  padding: 12px;
  border: 0;
  border-radius: 6px;
  background: #2563eb;
  color: white;
  cursor: pointer;
}
li { margin: 12px 0; overflow-wrap: anywhere; }
li button { margin-left: 10px; background: #dc2626; }
#status { color: #64748b; font-size: 13px; }