/* MasterAdmin chat — minimal WhatsApp-style two-pane layout.
   Light/dark adapt via MudBlazor's --mud-* variables. */

.mchat-container {
    display: flex;
    height: calc(100vh - 140px);
    border: 1px solid var(--mud-palette-lines-default);
    border-radius: 8px;
    overflow: hidden;
    background: var(--mud-palette-surface);
}

.mchat-sidebar {
    width: 360px;
    min-width: 280px;
    border-right: 1px solid var(--mud-palette-lines-default);
    display: flex;
    flex-direction: column;
    background: var(--mud-palette-background);
}

.mchat-sidebar-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mchat-search {
    padding: 8px 12px;
    border-bottom: 1px solid var(--mud-palette-lines-default);
}

.mchat-list {
    flex: 1;
    overflow-y: auto;
}

.mchat-list-item {
    padding: 10px 14px;
    display: flex;
    gap: 10px;
    align-items: center;
    cursor: pointer;
    border-bottom: 1px solid var(--mud-palette-divider);
}

.mchat-list-item:hover {
    background: var(--mud-palette-action-default-hover);
}

.mchat-list-item.active {
    background: var(--mud-palette-primary-hover);
}

.mchat-list-item .body {
    flex: 1;
    min-width: 0;
}

.mchat-list-item .row1 {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.mchat-list-item .name {
    font-weight: 600;
    color: var(--mud-palette-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mchat-list-item .time {
    font-size: 11px;
    color: var(--mud-palette-text-secondary);
    margin-left: 8px;
    flex-shrink: 0;
}

.mchat-list-item .preview {
    color: var(--mud-palette-text-secondary);
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.mchat-unread-badge {
    background: var(--mud-palette-primary);
    color: var(--mud-palette-primary-text);
    border-radius: 10px;
    padding: 1px 7px;
    font-size: 11px;
    font-weight: 600;
    flex-shrink: 0;
}

.mchat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.mchat-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--mud-palette-background);
}

.mchat-header .who {
    flex: 1;
    min-width: 0;
}

.mchat-header .who .name {
    font-weight: 600;
    color: var(--mud-palette-text-primary);
}

.mchat-header .who .sub {
    font-size: 12px;
    color: var(--mud-palette-text-secondary);
}

.mchat-thread {
    flex: 1;
    overflow-y: auto;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--mud-palette-surface);
}

.mchat-bubble {
    max-width: 72%;
    padding: 8px 12px;
    border-radius: 10px;
    word-wrap: break-word;
    white-space: pre-wrap;
    box-shadow: 0 1px 1px rgba(0,0,0,0.08);
}

.mchat-bubble.incoming {
    align-self: flex-start;
    background: var(--mud-palette-background-grey);
    color: var(--mud-palette-text-primary);
}

.mchat-bubble.outgoing {
    align-self: flex-end;
    background: var(--mud-palette-primary);
    color: var(--mud-palette-primary-text);
}

.mchat-bubble .meta {
    font-size: 10px;
    opacity: 0.75;
    margin-top: 4px;
    text-align: right;
}

.mchat-input-area {
    border-top: 1px solid var(--mud-palette-lines-default);
    padding: 8px 12px;
    display: flex;
    gap: 8px;
    align-items: flex-end;
    background: var(--mud-palette-background);
}

.mchat-input-area textarea {
    flex: 1;
    resize: none;
    min-height: 40px;
    max-height: 140px;
    padding: 9px 12px;
    border: 1px solid var(--mud-palette-lines-default);
    border-radius: 18px;
    background: var(--mud-palette-surface);
    color: var(--mud-palette-text-primary);
    font-family: inherit;
    font-size: 14px;
    outline: none;
}

.mchat-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px;
    text-align: center;
    color: var(--mud-palette-text-secondary);
}

.mchat-date-sep {
    align-self: center;
    font-size: 11px;
    color: var(--mud-palette-text-secondary);
    background: var(--mud-palette-background);
    padding: 2px 10px;
    border-radius: 10px;
    margin: 8px 0 4px;
}

@media (max-width: 768px) {
    .mchat-sidebar { display: none; }
    .mchat-sidebar.mobile-show { display: flex; width: 100%; }
    .mchat-main.mobile-hide { display: none; }
}