body { background-color: #f4f6f9; }
.card-stat { border: none; border-radius: 12px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.card-stat .display-6 { font-weight: 600; }
table.dataTable { background: #fff; }
.login-wrapper {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #0d6efd, #0a3d91);
}
.login-card { max-width: 400px; width: 100%; border: none; border-radius: 14px; box-shadow: 0 10px 30px rgba(0,0,0,0.25); }
.invoice-row { border: 1px solid #e2e6ea; border-radius: 8px; padding: 12px; margin-bottom: 10px; background: #fafbfc; }
.status-badge { font-size: 0.75rem; }
.searchable-select { position: relative; }
.searchable-dropdown {
    display: none;
    position: absolute;
    z-index: 1050;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 220px;
    overflow-y: auto;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    background: #fff;
    border-radius: 6px;
}
.searchable-dropdown .list-group-item {
    cursor: pointer;
    padding: 0.4rem 0.75rem;
    font-size: 0.9rem;
}