body {
    min-height: 100vh;
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
}

.topbar {
    background-color: #212529;
    border-bottom: 1px solid #333;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1040;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#page-content {
    flex: 1;
    padding: 20px 20px 2rem;
    overflow-y: auto;
    transition: opacity 0.2s ease-in-out;
}

table {
    border: 0px !important;
    border-collapse: separate !important;
    border-spacing: 0;
    border-radius: 10px;
    overflow: hidden;
}

th,
td {
    vertical-align: middle;
    border: 0 !important;
    border-bottom: 1px solid #6c757d !important;
    border-right: 1px solid #6c757d !important;
}

table tr th:last-child,
table tr td:last-child {
    border-right: 0 !important;
}

table tbody tr:last-child th,
table tbody tr:last-child td {
    border-bottom: 0 !important;
}

thead th {
    background-color: #272b2f !important;
    padding: 6px !important;
}

@media (max-width: 768px) {
    #page-content {
        padding: 15px 15px 2rem;
    }
}