body {
    background-color: #f5f7fb;
    min-height: 100vh;
    font-family: "Segoe UI", Arial, sans-serif;
}

.sidebar {
    width: 240px;
    min-height: 100vh;
    position: sticky;
    top: 0;
}

.sidebar .nav-link {
    color: #adb5bd;
    padding: 12px 18px;
    display: flex;
    align-items: center;
}

.sidebar .nav-link.active,
.sidebar .nav-link:hover {
    background-color: #0d6efd;
    color: #fff;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
}

.main-content {
    min-height: calc(100vh - 60px);
}

.timeline {
    list-style: none;
    padding-left: 0;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    width: 2px;
    background: #dee2e6;
    top: 0;
    bottom: 0;
}

.timeline li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 16px;
}

.timeline li::before {
    content: '';
    position: absolute;
    left: 2px;
    top: 4px;
    width: 12px;
    height: 12px;
    background: #0d6efd;
    border-radius: 50%;
}

table.dataTable thead th {
    background-color: #f0f4ff;
}

.card {
    border-radius: 12px;
}

.btn-outline-primary {
    border-radius: 8px;
}

.badge {
    border-radius: 6px;
}