/* Reset base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
    padding: 20px;
}

header {
    margin-bottom: 20px;
}

header h1 {
    font-size: 24px;
    margin-bottom: 10px;
}

nav a {
    color: #007BFF;
    text-decoration: none;
    margin-right: 10px;
}
nav a:hover {
    text-decoration: underline;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    background: #fff;
}

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

table th {
    background-color: #f0f0f0;
}

button {
    background-color: #007BFF;
    color: #fff;
    border: none;
    padding: 8px 12px;
    cursor: pointer;
    border-radius: 4px;
    font-size: 14px;
}

button:hover {
    background-color: #0056b3;
}

input[type="text"], input[type="password"], input[type="number"], select, input[type="date"] {
    padding: 8px;
    width: 100%;
    max-width: 300px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

form {
    margin-bottom: 20px;
}

.login-container {
    max-width: 400px;
    margin: 40px auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.login-container h2 {
    margin-bottom: 20px;
    text-align: center;
}

.error {
    background: #f8d7da;
    color: #721c24;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
}

.success {
    background: #d4edda;
    color: #155724;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #c3e6cb;
    border-radius: 4px;
}