body {
    background-color: #121212;
    color: #e0e0e0;
    font-family: 'Courier New', Courier, monospace;
    margin: 0;
    padding: 20px;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: #1e1e1e;
    padding: 20px;
    border: 1px solid #00ff00;
    box-shadow: 0 0 10px #00ff00;
}
h1, h2 {
    color: #00ff00;
    text-align: center;
    text-transform: uppercase;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
th, td {
    border: 1px solid #00ff00;
    padding: 10px;
    text-align: left;
}
th {
    background-color: #2a2a2a;
    color: #00ff00;
}
tr:nth-child(even) {
    background-color: #2a2a2a;
}
a {
    color: #39ff14;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
.action-links a {
    margin-right: 10px;
}
.status-active { color: #00ff00; }
.status-inactive { color: #ff4136; }
.status-expired { color: #ff851b; }

form {
    margin-top: 20px;
    padding: 20px;
    border: 1px solid #00ff00;
}
input[type="text"], input[type="password"], input[type="number"], input[type="date"], select {
    background-color: #121212;
    color: #e0e0e0;
    border: 1px solid #00ff00;
    padding: 10px;
    width: calc(100% - 22px);
    margin-bottom: 10px;
}
button, input[type="submit"] {
    background-color: #00ff00;
    color: #121212;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    text-transform: uppercase;
    font-weight: bold;
}
button:hover, input[type="submit"]:hover {
    background-color: #39ff14;
}
.login-container {
    width: 350px;
    margin: 100px auto;
}
.logout {
    display: block;
    text-align: right;
    margin-bottom: 20px;
}
.message {
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: 4px;
}
.message-success {
    color: #3c763d;
    background-color: #dff0d8;
    border-color: #d6e9c6;
}
.message-error {
    color: #a94442;
    background-color: #f2dede;
    border-color: #ebccd1;
}