:root {
    --priority-critical: #B00020;
    --priority-urgent: #E53935;
    --priority-high: #FB8C00;
    --priority-medium: #FDD835;
    --priority-low: #CFD8DC;
}

.critical-border {
    border-top-style: solid;
    border-top-color: var(--priority-critical);
    border-top-width: 4px;
}

.urgent-border {
    border-top-radius: 5px;
    border-top-style: solid;
    border-top-color: var(--priority-urgent);
    border-top-width: 4px;
}

.high-border {
    border-top-radius: 5px;
    border-top-style: solid;
    border-top-color: var(--priority-high);
    border-top-width: 4px;
}

.medium-border {
    border-top-radius: 5px;
    border-top-style: solid;
    border-top-color: var(--priority-medium);
    border-top-width: 4px;
}

.low-border {
    border-top-radius: 5px;
    border-top-style: solid;
    border-top-color: var(--priority-low);
    border-top-width: 4px;
}