body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    margin: 0;
    padding: 20px;
}
.login-container {
    max-width: 400px;
    margin: 50px auto;
    background: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
h1, h2 {
    text-align: center;
    color: #333;
}
label {
    display: block;
    margin-top: 10px;
    font-weight: bold;
}
input[type="email"], input[type="password"], input[type="text"], select, textarea {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}
button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 20px;
    width: 100%;
}
button:hover {
    background-color: #45a049;
}
.error {
    background: #f8d7da;
    color: #721c24;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}
.success {
    background: #d4edda;
    color: #155724;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}
th {
    background-color: #4CAF50;
    color: white;
}
tr:hover {
    background-color: #f5f5f5;
}
a {
    color: #4CAF50;
    text-decoration: none;
    margin-right: 10px;
}
a:hover {
    text-decoration: underline;
}
.btn {
    display: inline-block;
    padding: 8px 12px;
    background-color: #4CAF50;
    color: white;
    border-radius: 4px;
    text-decoration: none;
}
.btn-danger {
    background-color: #f44336;
}