input.readonly .readonly {
    background-color: #f8f9fa; /* Light gray background */
    color: #6c757d; /* Gray text */
    border-color: #ced4da; /* Muted border color */
}

.milestone-divider {
    margin: 0px 0 20px; /* Top, right/left, bottom spacing */
    padding: 5px;
    text-align: center;
    background-color: #f8f9fa;
    font-weight: bold;
    border-top: 1px solid #dee2e6;
    border-bottom: 1px solid #dee2e6;
}

.milestone-header {
    margin: 10px 0; /* Top/bottom, right/left spacing */
    position: sticky;
    top: 0; /* Sticks to the top of the container */
    z-index: 10; /* Ensures it stays above other elements */
    background-color: #e9ecef; /* Background color to avoid transparency */
    padding: 10px;
    border-left: 5px solid #000000;
    font-weight: bold;
}

.non-clickable {
    pointer-events: none;
    opacity: 0.3; /* visually indicate it's disabled */
    cursor: default; /* default cursor to indicate non-clickable */
}

.schedule-title {
    font-size: 15px;
    font-weight: 600;
    margin-top: 20px;
    margin-bottom: 10px;
    color: #343a40;
}

/* Table Styles */
.schedule-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px; /* Smaller font size for the table */
}

.schedule-table th, .schedule-table td {
    padding: 10px;
    text-align: left;
    vertical-align: middle;
}

.schedule-table th {
    background-color: #f8f9fa;
    color: #495057;
    font-weight: 600;
}

.schedule-table tr:nth-child(even) {
    background-color: #f2f2f2;
}

.schedule-table tr:hover {
    background-color: #e9ecef;
}

.validation-error {
  font-size: 0.9em;
  margin-top: 4px;
  color: #dc3545; /* Bootstrap danger color */
}

.validate-row-icon {
    margin-left: 4px;
}