body { font-family: Arial, sans-serif; background: #f4f4f4; margin: 0; padding: 0; }
.container, .login-box { width: 90%; max-width: 1200px; margin: 20px auto; background: white; padding: 20px; border-radius: 5px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
.login-box { max-width: 400px; }
h2 { color: #333; }
.form-group { margin-bottom: 15px; }
label { display: block; margin-bottom: 5px; font-weight: bold; }
input[type="text"], input[type="password"], input[type="date"], select, textarea { width: 100%; padding: 8px; border: 1px solid #ddd; border-radius: 4px; box-sizing: border-box; }
button { background: #007bff; color: white; border: none; padding: 10px 20px; border-radius: 4px; cursor: pointer; }
button:hover { background: #0056b3; }
.error { color: red; }
.success { color: green; }
table { width: 100%; border-collapse: collapse; margin-top: 20px; }
th, td { border: 1px solid #ddd; padding: 8px; text-align: left; }
th { background: #f2f2f2; }
.menu { list-style: none; padding: 0; }
.menu li { display: inline-block; margin-right: 10px; }
.menu li a { background: #007bff; color: white; padding: 8px 16px; text-decoration: none; border-radius: 4px; }
.menu li a:hover { background: #0056b3; }
.checkbox-group label { display: inline-block; margin-right: 15px; font-weight: normal; }