/* --- Level 1: Company (Root) --- */
.level-1-container {
    background-color: #fff;
}

/* --- Level 2: Branch (Vertical Tabs) --- */
.branch-list-group .list-group-item {
    border-left: 4px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
}

    .branch-list-group .list-group-item.active {
        background-color: var(--bs-primary-bg-subtle);
        color: var(--bs-primary-text-emphasis);
        border-left-color: var(--bs-primary);
        border-color: var(--bs-border-color); /* Override default blue bg */
    }

.branch-content-area {
    background-color: #f8f9fa; /* สีพื้นหลังให้อ่อนลงเล็กน้อยเพื่อให้ดูเป็นพื้นที่ทำงาน */
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    padding: 1.5rem;
    min-height: 400px;
}

/* --- Level 3: Factory License (Accordion) --- */
.license-accordion-item {
    border: 1px solid var(--bs-gray-300);
    margin-bottom: 0.5rem;
    border-radius: var(--bs-border-radius) !important;
    overflow: hidden;
}

.license-header button {
    font-weight: 500;
    color: var(--bs-dark);
}

    .license-header button:not(.collapsed) {
        background-color: #e9ecef; /* สีเทาอ่อนเมื่อเปิด */
        color: var(--bs-primary);
    }

/* --- Level 4: Tabs for Contact/Waste --- */
.license-tabs .nav-link {
    font-size: 0.9rem;
    color: var(--bs-secondary);
}

    .license-tabs .nav-link.active {
        font-weight: 600;
        color: var(--bs-primary);
        border-bottom: 2px solid var(--bs-primary);
    }

/* --- Level 5: Waste Item (Card inside Tab) --- */
.waste-item-card {
    border-left: 3px solid var(--bs-warning); /* สีเหลืองบ่งบอกของเสีย */
    background-color: #fff;
    transition: transform 0.15s;
}

    .waste-item-card:hover {
        box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    }

/* --- Action Buttons --- */
.btn-action-group {
    opacity: 0.6;
    transition: opacity 0.2s;
}

.child-item:hover .btn-action-group,
.branch-list-group .list-group-item:hover .btn-action-group {
    opacity: 1;
}