body {
    background-color: #000;
    color: #0f0;
    font-family: 'Courier New', Courier, monospace;
    margin: 0;
    padding: 0;
}

a {
    color: #0f0;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
    color: #fff;
}

.container {
    width: 90%;
    margin: 0 auto;
    padding: 20px;
}

header {
    border-bottom: 1px solid #0f0;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin-right: 20px;
}

input[type="text"], input[type="password"], input[type="number"], select, textarea {
    background-color: #111;
    color: #0f0;
    border: 1px solid #0f0;
    padding: 5px;
    font-family: 'Courier New', Courier, monospace;
}

button, input[type="submit"], .btn {
    background-color: #0f0;
    color: #000;
    border: none;
    padding: 5px 10px;
    cursor: pointer;
    font-weight: bold;
    font-family: 'Courier New', Courier, monospace;
}

button:hover, input[type="submit"]:hover, .btn:hover {
    background-color: #fff;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    border: 1px solid #0f0;
    padding: 8px;
    text-align: left;
}

th {
    background-color: #111;
}

.error {
    color: #f00;
}

.success {
    color: #0f0;
    font-weight: bold;
}

.card {
    border: 1px solid #0f0;
    padding: 20px;
    margin-bottom: 20px;
}

h1, h2, h3 {
    text-transform: uppercase;
}

/* Specific for forms */
.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
}