body {
  font-family: sans-serif;
  margin: 0;
  background-color: #f5f5f5;
  padding-top: 20px;
  min-height: 100vh;
}

h1 {
  color: #333;
  text-align: center;
  margin-bottom: 1.5rem;
}

.container {
  max-width: 800px;
}

/* Form styles */
form {
  margin-bottom: 1.5rem;
}

form .input-group {
  margin-bottom: 1rem;
}

form input, form button {
  padding: 8px;
  margin-right: 5px;
}

/* SMS list styles */
.sms-list {
  list-style: none;
  padding: 0;
}

.sms-list li {
  background: white;
  margin-bottom: 10px;
  padding: 15px;
  border-left: 4px solid #2196f3;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  transition: transform 0.2s;
}

.sms-list li:hover {
  transform: translateY(-2px);
}

.sms-list li strong {
  color: #333;
}

.sms-list li p {
  margin: 5px 0 0;
  color: #555;
}

/* Login page styles */
.login-container {
  max-width: 400px;
  margin: 50px auto;
  padding: 20px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.login-container .form-group {
  margin-bottom: 1rem;
}

.login-container .alert {
  margin-bottom: 1rem;
}

/* Logout link */
.logout-link {
  display: inline-block;
  margin-bottom: 1rem;
  color: #dc3545;
  text-decoration: none;
}

.logout-link:hover {
  text-decoration: underline;
}