* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  background-color: #2e2e2e; /* Overall background color */
  color: #fff; /* Text color */
}

a {
  text-decoration: none;
  color: #3498db; /* Link color */
}

.header {
  background-color: #2c3e50;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header__logo {
  color: #fff;
}

.header__user-info {
  color: #fff;
}

nav {
  background-color: #34495e;
  padding: 15px;
}

nav ul {
  display: flex;
  justify-content: space-around;
  align-items: center;
}

nav button {
  color: #fff;
  padding: 5px 10px;
  background-color: transparent;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

nav button:hover {
  background-color: #2c3e50;
  border-radius: 5px;
}

main {
  padding: 20px;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  margin: 20px auto;
  max-width: 800px;
  background-color: #424242; /* Main content background color */
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  margin: 10px;
  background-color: #3498db;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s;
  font-size: 1rem;
}

.btn:hover {
  background-color: #2980b9;
}

.content.visible {
  display: block;
}

.content {
  display: none;
  background-color: #515151; /* Content banner background color */
  padding: 20px;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  margin-top: 20px;
}

#paymentForm {
  background-color: #515151; /* Match the background color */
  padding: 20px;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  margin-top: 20px;
}

#paymentForm label,
#paymentForm input {
  display: block;
  margin-bottom: 10px;
}

.content-inner {
  padding: 20px;
  background-color: #2e2e2e; /* Content inner background color */
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.header h2 {
  color: #fff;
  margin: 0;
  font-size: 1.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

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

th {
  background-color: #f5f5f5;
  font-weight: normal;
}

@media (max-width: 768px) {
  .header__user-info {
    display: none;
  }
}