body {
  margin: 0;
  padding: 24px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
  background: #f5f7fb;
  color: #1f2937;
}

a {
  color: #00B7FF;
}

.container {
  max-width: 900px;
  margin: 0 auto;
}

.card {
  background: #ffffff;
  border: 1px solid #dbe3ef;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}

form {
  display: grid;
  gap: 8px;
}

input {
  border: 1px solid #c9d4e5;
  border-radius: 6px;
  padding: 8px;
}

button {
  width: fit-content;
  background: #0c66e4;
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  cursor: pointer;
}

button:hover {
  background: #0055cc;
}

.error {
  background: #fee2e2;
  border: 1px solid #fecaca;
  color: #991b1b;
  border-radius: 8px;
  padding: 10px 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid #e5e7eb;
  text-align: left;
  padding: 10px 8px;
}