/* ========================================
   Structure Panel Base Layout
   ======================================== */

.structure-panel-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    background: var(--color-text-light);
    border-radius: var(--border-radius);
    overflow-x: auto;
    overflow-y: auto;
}

/* Error/info banner — inline with toolbar on row 1 */
.structure-error-banner {
    grid-column: 2;
    grid-row: 1;
    text-align: left;
    align-self: center;
    font-weight: 600;
}

/* Styled bar when error content is present */
.structure-error-banner:not(:empty):not(.info-banner) {
    color: var(--color-danger);
    background-color: var(--color-danger-light);
    border-left: 4px solid var(--color-danger);
    padding: 4px 10px;
    font-size: 0.95em;
    line-height: 1.2;
    border-radius: var(--border-radius);
}

/* Info banner — styled bar in green primary */
.structure-error-banner.info-banner {
    color: var(--color-primary);
    background-color: var(--color-primary-light, #e6f7f4);
    border-left: 4px solid var(--color-primary);
    padding: 4px 10px;
    font-size: 0.95em;
    line-height: 1.2;
    border-radius: var(--border-radius);
}

.structure-error-banner.info-banner a.banner-action {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: underline;
    margin-left: 0.25rem;
}

.structure-error-banner.info-banner a.banner-action:hover {
    text-decoration: none;
}

/* Hide in view mode when empty */
.structure-error-banner:empty {
    display: none;
}

/* In editing modes, toggle is hidden — banner spans cells 1-2 */
.add-mode .structure-error-banner,
.edit-mode .structure-error-banner,
.split-mode .structure-error-banner {
    grid-column: 1 / span 2;
}

/* ========================================
   Structure Panel Header Layout
   ======================================== */

.structure-panel-info .list-header {
    display: grid;
    grid-template-columns: minmax(0, auto) 1fr minmax(0, auto);
    grid-template-rows: auto;
    column-gap: 0.5em;
    align-items: center;
    position: relative;
}

.structure-panel-info .list-header .structure-toggle-group {
    grid-column: 1;
    grid-row: 1;
    justify-self: start;
    display: flex;
    gap: 0;
}

.structure-toggle-group .toggle-btn {
    border-radius: 0;
}
.structure-toggle-group .toggle-btn:first-child {
    border-radius: 4px 0 0 4px;
}
.structure-toggle-group .toggle-btn:last-child {
    border-radius: 0 4px 4px 0;
}
.structure-toggle-group .toggle-btn + .toggle-btn {
    border-left: none;
}

.structure-panel-info .list-header .list-actions {
    grid-column: 3;
    grid-row: 1;
    justify-self: end;
    padding-right: 0.25em;
    display: flex;
    align-items: center;
    gap: 0.5em;
    flex-wrap: nowrap;
}

/* Toolbar status/info text — italic hint aligned with action buttons */
.toolbar-status-text {
    font-style: italic;
    color: var(--color-gray-500);
    font-size: 0.9em;
    margin-right: 0.25rem;
}

/* Stack toggle and buttons on narrower screens */
@media (max-width: 920px) {
    .structure-panel-info .list-header {
        grid-template-columns: 1fr 1fr;
    }
    .structure-panel-info .list-header .structure-toggle-group {
        grid-column: 1;
        grid-row: 1;
        justify-self: start;
    }
    .structure-panel-info .list-header .list-actions {
        grid-column: 2;
        grid-row: 1;
        justify-self: end;
    }
}

/* ========================================
   Floor Editor Layout
   ======================================== */

.page-container {
    display: flex;
    width: 100%;
    flex: 1;
    min-height: 0;
    gap: var(--gap);
}

.page-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.page-canvas {
    flex: 1;
    min-height: 300px;
    border-radius: var(--border-radius);
    background: var(--color-white);
    position: relative;
}

.page-canvas canvas {
    display: block;
    border: 1px solid var(--color-gray-700);
}

/* ── Shared tooltip (dark, follows cursor) ─────────────────────────── */
/* Position (absolute / fixed) set by each consumer via inline style.  */
.app-tooltip {
    display: none;
    padding: 8px;
    background: var(--shadow-darker);
    color: var(--color-white);
    font-size: 12px;
    border-radius: 4px;
    pointer-events: none;
    z-index: 1000;
    box-shadow: 0 2px 8px var(--shadow-medium);
    white-space: normal;
    max-width: 320px;
    text-align: left;
}

.app-tooltip table {
    border-collapse: collapse;
    width: 100%;
    background: transparent;
}

.app-tooltip tr { background: transparent; }

.app-tooltip td {
    padding: 2px 8px 2px 0;
    color: var(--color-white);
    background: transparent;
    vertical-align: top;
}

.app-tooltip td:first-child {
    font-weight: 600;
    white-space: nowrap;
    padding-right: 12px;
}

/* Floor fan cards — building right-click floor preview */
.floor-fan-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--shadow-light);
    padding: 6px;
    cursor: pointer;
    text-align: center;
    position: absolute;
    transition: box-shadow 0.2s ease, background 0.2s ease;
}

.floor-fan-card:hover {
    background: var(--color-gray-100);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.floor-fan-card-label {
    font-size: 11px;
    font-weight: 500;
    margin-top: 4px;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.page-sidebar {
    flex: 0 0 200px;
    display: flex;
    flex-direction: column;
    gap: var(--gap);
    overflow-y: auto;
}

/* Asset register sidebar needs extra width for the filter rule builder */
#layer-panel.page-sidebar,
#systems-sidebar.page-sidebar {
    flex: 0 0 400px;
    overflow-y: hidden;
}

/* Pill field row (Systems sidebar) */
.pill-field-row {
    display: flex;
    align-items: center;
    gap: 0.25em;
    margin-bottom: 0.25em;
}

.pill-field-row select {
    flex: 1;
    min-width: 0;
}

.pill-field-row .btn {
    flex: 0 0 auto;
    padding: 2px 6px;
    font-size: 0.8em;
    min-width: auto;
}

/* Filter panel — normal flow, groups container is the only thing that scrolls.
   max-height on groups = 30vh minus fixed elements (title + 2 buttons + padding) */
#layer-panel #asset-filter-panel,
#systems-sidebar #system-filter-panel {
    flex: 0 0 auto;
}

#layer-panel #asset-filter-panel .rb-groups-container,
#systems-sidebar #system-filter-panel .rb-groups-container {
    max-height: calc(30vh - 120px);
    overflow-y: auto;
}

/* Asset list panel — 70% of remaining sidebar space, scrolls internally */
#layer-panel .asset-list-panel {
    flex: 7 1 0;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-tab-content {
    flex: 1 1 0;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.asset-list-count {
    font-weight: 400;
    color: var(--color-gray-500);
    font-size: 0.9em;
}

.sidebar-table-wrap {
    flex: 1 1 0;
    min-height: 0;
    overflow-y: auto;
}

.sidebar-table { table-layout: fixed; width: 100%; user-select: none; }

.sidebar-table thead th {
    position: sticky;
    top: 0;
    background: var(--color-white);
    z-index: 1;
}

.sidebar-table td {
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
}

.sidebar-table tbody tr.active {
    background-color: var(--color-primary-light, #e8f0fe);
}

.sidebar-list-empty {
    display: none;
    color: var(--color-gray-500);
    font-style: italic;
    font-size: 0.85em;
    padding: 0.75em 0;
    text-align: center;
}

.page-panel {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius);
    padding: var(--panel-pad);
    font-size: 0.82em;
    color: var(--color-gray-500);
}

.page-panel .panel-title {
    font-size: 0.9em;
    font-weight: 600;
    margin: 0 0 0.5em 0;
    color: var(--color-gray-700);
}

/* Compact labels inside sidebar panels */
.page-panel label {
    display: block;
    font-weight: 500;
    color: var(--color-primary);
    margin-top: 0.5em;
}

/* Compact form inputs inside sidebar panels */
.page-panel .form-input {
    display: block;
    width: 100%;
    height: auto;
    padding: 4px 8px;
    font-size: 0.82em;
    margin-top: 0.4em;
}

.layer-toggle-container {
    overflow-y: auto;
}

.layer-toggle-list {
    display: flex;
    flex-direction: column;
    gap: 0.25em;
}

.layer-toggle-item {
    display: flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.25em 0;
    cursor: pointer;
    font-size: 0.85em;
}

.layer-toggle-item:hover {
    background: var(--color-gray-50);
}

.layer-toggle-section {
    margin-bottom: 0.75em;
    padding-bottom: 0.5em;
    border-bottom: 1px solid var(--color-gray-200);
}

.layer-toggle-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.layer-toggle-label {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--color-gray-700);
}

/* Sidebar collapse toggle tab */
.page-sidebar-toggle {
    flex: 0 0 auto;
    width: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius);
    color: var(--color-gray-500);
    font-size: 14px;
    padding: 0;
    transition: background 0.15s;
}

.page-sidebar-toggle:hover {
    background: var(--color-gray-50);
    color: var(--color-gray-700);
}

.page-sidebar-toggle svg {
    transition: transform 0.15s;
}

.page-sidebar-toggle.collapsed svg {
    transform: rotate(180deg);
}

.page-sidebar.collapsed {
    display: none;
}

/* Sidebar is collapsible at all screen sizes — no stacking or hiding needed */

/* ========================================
   Multi-Select Combo Dropdown
   ======================================== */

.multi-select-combo {
    position: relative;
    width: 100%;
}

.multi-select-combo .multi-select-input {
    width: 100%;
    padding-right: 28px;
    cursor: pointer;
    text-overflow: ellipsis;
}

.multi-select-combo .multi-select-input::placeholder {
    color: var(--color-gray-500);
    opacity: 1;
}

.multi-select-arrow {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.6em;
    color: var(--color-gray-500);
    pointer-events: all;
    cursor: pointer;
    user-select: none;
    line-height: 1;
}

.multi-select-dropdown {
    display: none;
    position: fixed;
    max-height: 300px;
    overflow-y: auto;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    z-index: 9999;
    box-shadow: 0 4px 8px var(--shadow-light);
}

.multi-select-dropdown.open {
    display: block;
}

.multi-select-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    cursor: pointer;
    font-size: 0.82em;
    user-select: none;
}

.multi-select-option:hover {
    background: var(--color-gray-50);
}

.multi-select-empty {
    padding: 8px;
    font-size: 0.82em;
    color: var(--color-gray-500);
    text-align: center;
    font-style: italic;
}

/* ============================================================================
   Alignment Overlay (re-extraction snap-point alignment)
   ============================================================================ */

.alignment-overlay {
    position: absolute;
    inset: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    background: var(--color-white, #fff);
}

.alignment-canvas {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.alignment-canvas canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

.alignment-banner {
    padding: 10px 16px;
    background: var(--color-gray-50, #f8f9fa);
    border-bottom: 1px solid var(--color-gray-200, #e9ecef);
    font-size: 0.88em;
    text-align: center;
    color: var(--color-gray-700, #495057);
    line-height: 1.5;
}

.alignment-buttons {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--color-gray-50, #f8f9fa);
    border-top: 1px solid var(--color-gray-200, #e9ecef);
}

.alignment-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 6px 16px;
    background: var(--color-gray-50, #f8f9fa);
    font-size: 0.82em;
    color: var(--color-gray-600, #6c757d);
}

.alignment-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.alignment-swatch {
    display: inline-block;
    width: 14px;
    height: 4px;
    border-radius: 2px;
}

/* ========================================
   Floor Navigation Overlay
   ======================================== */

.floor-nav-overlay {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    z-index: 50;
    pointer-events: none;
}

.floor-nav-btn {
    pointer-events: auto;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white-strong);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius);
    cursor: pointer;
    color: var(--color-gray-700);
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    box-shadow: 0 1px 3px var(--shadow-light);
    padding: 0;
}

.floor-nav-btn:hover:not(:disabled) {
    background: var(--color-white);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.floor-nav-btn:disabled {
    opacity: 0.3;
    cursor: default;
}

.floor-nav-indicator {
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    padding: 4px 8px;
    background: var(--white-strong);
    border-radius: var(--border-radius);
    min-width: 60px;
    text-align: center;
}

.floor-nav-name {
    font-size: 0.75em;
    font-weight: 600;
    color: var(--color-gray-700);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 90px;
}

.floor-nav-position {
    font-size: 0.65em;
    color: var(--color-gray-400);
    white-space: nowrap;
}