body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  color: #333;
  margin: 0;
  padding: 20px;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  background-color: #fff;
  padding: 30px;
  border-radius: 6px;
}

header {
  text-align: center;
  margin-bottom: 30px;
}

header h1 {
  font-size: 2rem;
  margin-bottom: 6px;
}

header p {
  color: #666;
}

h2 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  border-bottom: 2px solid #ddd;
  padding-bottom: 6px;
}

section {
  margin-bottom: 30px;
}

ul {
  padding-left: 20px;
}

ul li {
  margin-bottom: 8px;
}

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

table th,
table td {
  border: 1px solid #ccc;
  padding: 10px;
  text-align: left;
}

table thead tr {
  background-color: #4a90d9;
  color: #fff;
}

table tbody tr:nth-child(even) {
  background-color: #f9f9f9;
}

form label {
  display: block;
  margin-bottom: 4px;
  font-weight: bold;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  background-color: #4a90d9;
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  font-size: 1rem;
}

.btn:hover {
  background-color: #357abd;
}

form input {
  width: 100%;
  padding: 10px;
  margin-bottom: 16px;
  border: 1px solid #4a90d9;
  border-radius: 4px;
  font-size: 1rem;
  box-sizing: border-box;
}

form button {
  width: 100%;
  padding: 12px;
  background-color: #4a90d9;
  color: #ffffff;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
}

form button:hover {
  background-color: #db1e1e;
}

footer {
  text-align: center;
  margin-top: 30px;
  color: #999;
  font-size: 0.85rem;
  border-top: 1px solid #ddd;
  padding-top: 16px;
}

img {
  width: 100%;
  max-width: 600px;
  height: auto;
}