body {
    font-family: sans-serif;
    background: #f4f4f4;
    padding: 10px;
    margin: 0;
}

h2 {
    color: #003366;
    text-align: center;
    margin-top: 10px;
}

nav {
    text-align: center;
    margin-bottom: 20px;
}

nav a {
    margin: 0 10px;
    color: #003366;
    text-decoration: none;
    font-weight: bold;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

th, td {
    padding: 8px;
    border: 1px solid #ccc;
    text-align: left;
    font-size: 14px;
}

form {
    margin: 0;
}

select, 
input[type="text"] {
    width: 100%;
    padding: 6px;
    margin-top: 4px;
    margin-bottom: 4px;
    font-size: 14px;
}

button {
    width: 100%;
    padding: 8px;
    background: #003366;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    margin-top: 6px;
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
    table, thead, tbody, th, td, tr {
        display: block;
    }

    tr {
        margin-bottom: 15px;
        background: #fff;
        padding: 10px;
        border-radius: 6px;
    }

    td {
        border: none;
        padding: 6px 0;
    }

    td:before {
        content: attr(data-label);
        font-weight: bold;
        display: block;
        color: #003366;
    }
}

/* Success Message Styles */
.text-success {
    color: #28a745;
}

/* Button Variations */
.btn-success {
    background: #28a745;
}

/* Card Style */
.card {
    background: #fff;
    border-radius: 6px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.card-body {
    padding: 15px;
}

/* Container */
.container-fluid {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}

/* Content Wrapper */
.content-wrapper {
    padding: 20px;
}