body {
    font-family: Arial, sans-serif;
    min-height: 100vh;
    padding: 20px;
}
h1, h2, h3, h4 {
    font-weight: bold;
    margin-bottom: 20px;
}
button, .btn {
    font-size: 14px;
}
table {
    border-collapse: collapse;
    width: 100%;
}
th, td {
    padding: 10px;
    border: 1px solid #ddd;
    text-align: center;
}
.sidebar {
    height: 100%;
    position: fixed;
    top: 0; left: 0;
    width: 220px;
    background-color: #f8f9fa;
    padding: 2rem 1rem;
    border-right: 1px solid #ddd;
    transition: transform 0.3s ease;
}
.sidebar.hidden {
    transform: translateX(-100%);
}
.content {
    margin-left: 240px;
    padding: 2rem;
    transition: margin-left 0.3s ease;
}
.content.full {
    margin-left: 20px;
}
.logo img {
    max-height: 80px;
}
.toggle-sidebar-btn {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 1100;
    background: #007bff;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
}
.sidebar-heading {
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: bold;
    margin-top: 1rem;
    color: #6c757d;
}