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

header {
  background-color: #2c3e50;
  color: white;
  padding: 1rem;
}

nav a {
  color: white;
  margin-right: 1rem;
  text-decoration: none;
}

main {
  max-width: 1000px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.auth-form {
  max-width: 400px;
  margin: 0 auto;
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.auth-form h2, .dashboard h2, .admin-panel h2 {
  margin-top: 0;
}

label {
  display: block;
  margin-bottom: 0.5rem;
}

input[type="text"], input[type="password"], input[type="file"], textarea, select {
  width: 100%;
  padding: 0.5rem;
  margin-bottom: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
}

button, .btn {
  background-color: #3498db;
  color: white;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

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

.alert {
  padding: 0.75rem;
  margin-bottom: 1rem;
  border-radius: 4px;
}

.alert.error {
  background-color: #f8d7da;
  color: #721c24;
}

.alert.info {
  background-color: #d1ecf1;
  color: #0c5460;
}

.alert.success {
  background-color: #d4edda;
  color: #155724;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  background: white;
}

th, td {
  padding: 0.75rem;
  border: 1px solid #ddd;
  text-align: left;
}

th {
  background-color: #f2f2f2;
}

.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.inline-form input, .inline-form select, .inline-form textarea, .inline-form button {
  margin-bottom: 0;
}

section {
  background: white;
  padding: 1rem;
  margin-bottom: 1rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}