/* Panel chrome: no breadcrumbs, pinned sidebar, GitLab-like workspace contour. */

:root,
.admin-interface:not(.login):not(.popup) {
    --panel-selection-bg: #e8f2fa;
    --panel-selection-bg-hover: #d9e9f7;
    --selected-row: var(--panel-selection-bg);
    --admin-interface-module-background-selected-color: var(--panel-selection-bg);
    --panel-sidebar-width: 360px;
    --panel-sidebar-caption-line-height: 1.2;
}

/* 1) Remove breadcrumb strip entirely */
.admin-interface:not(.login):not(.popup) nav[aria-label="Breadcrumbs"] {
    display: none !important;
}

/* 2) Keep sidebar section headers always expanded */
.admin-interface.foldable-apps [class^="app-"].module > table > caption::after {
    display: none !important;
}

.admin-interface.foldable-apps [class^="app-"].module > table > caption {
    cursor: default;
    pointer-events: none;
}

.admin-interface.foldable-apps [class^="app-"].module.collapsed > table > tbody {
    display: table-row-group !important;
}

/* 3) Sidebar tabs: uniform white background (no zebra striping) */
.admin-interface:not(.login):not(.popup) #nav-sidebar .module tbody tr,
.admin-interface:not(.login):not(.popup) #nav-sidebar .module tbody tr:nth-child(odd),
.admin-interface:not(.login):not(.popup) #nav-sidebar .module tbody tr:nth-child(even) {
    background: #fff !important;
}

.admin-interface:not(.login):not(.popup) #nav-sidebar .current-model,
.admin-interface:not(.login):not(.popup) #nav-sidebar .current-model th,
.admin-interface:not(.login):not(.popup) #nav-sidebar .current-model td {
    background: var(--panel-selection-bg) !important;
}

.admin-interface:not(.login):not(.popup) #nav-sidebar .module tr.clickable-row:hover th,
.admin-interface:not(.login):not(.popup) #nav-sidebar .module tr.clickable-row:hover td {
    background: #f3f7fb !important;
}

/* 4) T-shaped workspace contour: full-width top line + vertical line on content */
.admin-interface:not(.login):not(.popup) #header + #main {
    border-top: 1px solid #d0d7de;
    background-color: #f4f6f8;
}

.admin-interface:not(.login):not(.popup) #nav-sidebar {
    background-color: #fff;
    align-self: stretch;
    min-height: calc(100vh - 56px);
    border-right: none;
    padding-left: 0 !important;
    padding-right: 0 !important;
    padding-top: 0 !important;
    overflow: visible !important;
}

.admin-interface:not(.login):not(.popup) #nav-sidebar .panel-nav-sidebar-inner {
    max-height: calc(100vh - 56px);
    overflow-x: hidden;
    overflow-y: auto;
}

.admin-interface:not(.login):not(.popup) #nav-sidebar .module {
    margin-bottom: 0 !important;
    width: 100%;
}

.admin-interface:not(.login):not(.popup) #nav-sidebar .module table {
    width: 100%;
}

.admin-interface:not(.login):not(.popup) #nav-sidebar .module caption,
.admin-interface:not(.login):not(.popup) #nav-sidebar .module th,
.admin-interface:not(.login):not(.popup) #nav-sidebar .module td {
    border-radius: 0 !important;
}

.admin-interface:not(.login):not(.popup) #nav-sidebar .module caption,
.admin-interface:not(.login):not(.popup) #nav-sidebar .module th {
    padding: 8px 14px;
    line-height: var(--panel-sidebar-caption-line-height);
    box-sizing: border-box;
}

.admin-interface:not(.login):not(.popup) #nav-sidebar .panel-sidebar-section-caption .section {
    display: inline;
    padding: 0;
}

.admin-interface:not(.login):not(.popup) #main > main.content {
    background-color: #fff;
    border-left: 1px solid #d0d7de;
    border-top: none;
    border-radius: 0;
    box-sizing: border-box;
    min-height: calc(100vh - 56px);
}

@media (min-width: 1280px) {
    .admin-interface:not(.login):not(.popup).change-list #main > main.content,
    .admin-interface:not(.login):not(.popup).change-form #main > main.content {
        min-height: calc(100vh - 56px);
    }

    .admin-interface:not(.login):not(.popup) #main > #nav-sidebar {
        left: 0 !important;
        margin-left: 0 !important;
    }

    .admin-interface:not(.login):not(.popup).change-list #main > main.content,
    .admin-interface:not(.login):not(.popup).change-form #main > main.content,
    .admin-interface:not(.login):not(.popup) #main > main.content,
    .admin-interface:not(.login):not(.popup) #main > #nav-sidebar + .content,
    .admin-interface.change-list:not(.popup) #main > #nav-sidebar + .content,
    .admin-interface.change-form:not(.popup) #main > #nav-sidebar + .content,
    .admin-interface.change-list:not(.popup) #main.shifted > #nav-sidebar + .content,
    .admin-interface.change-form:not(.popup) #main.shifted > #nav-sidebar + .content {
        max-width: calc(100% - var(--panel-sidebar-width)) !important;
        flex: 1 1 calc(100% - var(--panel-sidebar-width)) !important;
    }

    .admin-interface:not(.login):not(.popup) #header + #main {
        background: linear-gradient(
            to right,
            #fff 0,
            #fff var(--panel-sidebar-width),
            #f4f6f8 var(--panel-sidebar-width),
            #f4f6f8 100%
        );
    }
}