/* mc-webui Custom Styles */

:root {
    --msg-own-bg: #e7f1ff;
    --msg-other-bg: #f8f9fa;
    --msg-border: #dee2e6;
}

/* Page Layout */
html, body {
    height: 100vh; /* Fallback for older browsers */
    height: 100dvh; /* Dynamic viewport height (mobile-friendly) */
    margin: 0;
    overflow: hidden;
}

body {
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 0; /* Important for flex children */
}

/* Messages Container */
.messages-container {
    background-color: #ffffff;
    padding-left: 0.25rem !important;
    padding-right: 0.25rem !important;
}

#messagesList {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* =============================================================================
   Message Wrapper - New Layout with Avatar
   ============================================================================= */

/* Message wrapper - contains avatar + message container */
.message-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    max-width: 85%;
    animation: fadeIn 0.3s ease-in;
}

.message-wrapper.own {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-wrapper.other {
    align-self: flex-start;
}

/* Avatar circle */
.message-avatar {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: white;
    text-transform: uppercase;
    margin-top: 0.1rem;
}

.message-avatar.emoji {
    font-size: 1.25rem;
    background-color: transparent !important;
    border: 1.5px solid;
    line-height: 1;
    padding-bottom: 1px;
}

/* Message container - holds sender row + bubble + actions */
.message-container {
    display: flex;
    flex-direction: column;
    min-width: 0;  /* Allow text truncation */
}

/* Sender row - name and time above bubble */
.message-sender-row {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
    padding-left: 0.25rem;
}

.message-sender {
    font-weight: 600;
    font-size: 0.875rem;
    color: #0d6efd;
}

.message-sender-row .message-time {
    font-size: 0.7rem;
    color: #6c757d;
}

/* Message footer for own messages (name + time above bubble) */
.message-footer {
    display: flex;
    align-items: baseline;
    padding-right: 0.5rem;
    margin-bottom: 0.25rem;
}

.message-footer.own {
    justify-content: flex-end;
}

.message-footer .message-time {
    font-size: 0.7rem;
    color: #6c757d;
}

.message-footer .message-sender.own {
    font-weight: 600;
    font-size: 0.875rem;
    color: #084298;
    margin-right: 0.5rem;
}

/* Message action buttons container */
.message-actions {
    display: flex;
    gap: 0.25rem;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* Message Bubbles */
.message {
    padding: 0.75rem 1rem;
    border-radius: 1rem;
    border: 1px solid var(--msg-border);
    word-wrap: break-word;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Own Messages (right-aligned) */
.message.own {
    background-color: var(--msg-own-bg);
    border-color: #b8daff;
}

/* Other Messages (left-aligned) */
.message.other {
    background-color: var(--msg-other-bg);
}

.message-time {
    font-size: 0.75rem;
    color: #6c757d;
}

/* Message Content */
.message-content {
    margin: 0;
    white-space: pre-wrap;
    line-height: 1.4;
}

/* Message Metadata */
.message-meta {
    font-size: 0.7rem;
    color: #adb5bd;
    margin-top: 0.25rem;
}

/* Reply Button */
.btn-reply {
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem;
    margin-top: 0.25rem;
}

/* Send Form */
#messageInput,
#dmMessageInput {
    resize: none;
    border-radius: 0.5rem 0 0 0.5rem;
}

#sendBtn,
#dmSendBtn {
    border-radius: 0 0.5rem 0.5rem 0;
}

/* Status Indicators */
.status-connected {
    color: #198754 !important;
}

.status-disconnected {
    color: #dc3545 !important;
}

.status-connecting {
    color: #ffc107 !important;
}

/* Scrollbar Styling */
.messages-container::-webkit-scrollbar {
    width: 8px;
}

.messages-container::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.messages-container::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

.messages-container::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Channel selector and date selector - larger font size */
#channelSelector,
#dateSelector {
    font-size: 1rem;
}

/* Offcanvas menu styling */
.offcanvas {
    width: 280px !important;
}

.offcanvas-body .list-group-item {
    padding: 1rem 0.75rem;
    border: none;
    border-bottom: 1px solid #dee2e6;
    font-size: 1rem;
}

.offcanvas-body .list-group-item:hover {
    background-color: #f8f9fa;
}

.offcanvas-body .list-group-item i {
    color: #0d6efd;
    min-width: 1.5rem;
}

.offcanvas-body .list-group-item span {
    font-weight: 500;
}

.offcanvas-body .list-group-item .form-select {
    font-size: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .message-wrapper {
        max-width: 90%;
    }

    .message-avatar {
        width: 32px;
        height: 32px;
        font-size: 0.75rem;
    }

    .message-avatar.emoji {
        font-size: 1.1rem;
    }

    .message-sender {
        font-size: 0.8rem;
    }

    .dm-message {
        max-width: 85%;
    }

    #messageInput,
    #dmMessageInput {
        font-size: 0.9rem;
    }

    /* Reduce padding on mobile to save vertical space */
    #sendMessageForm,
    #dmSendForm {
        padding: 0.5rem !important;
    }

    /* Make status bar more compact */
    .row.border-top .p-2 {
        padding: 0.3rem !important;
        font-size: 0.7rem;
    }

    /* Navbar: Reduce gap between elements */
    .navbar .d-flex {
        gap: 0.25rem !important;
    }

    /* Navbar: Channel selector on mobile */
    #channelSelector,
    #dmConversationSelector {
        min-width: 100px !important;
        font-size: 0.9rem;
    }

    /* Navbar: Smaller buttons */
    .navbar .btn-sm {
        padding: 0.25rem 0.4rem;
        font-size: 0.875rem;
    }

    /* Modal: Better mobile layout */
    .modal-dialog {
        margin: 0.5rem;
    }

    .modal-body {
        padding: 0.75rem;
    }

    /* Modal: Smaller channel keys on mobile */
    .list-group-item small {
        font-size: 0.65rem;
        word-break: break-all;
    }

    /* Modal: Compact channel list */
    .modal .list-group-item {
        padding: 0.5rem;
    }

    /* Modal: Stack buttons vertically on very small screens */
    @media (max-width: 400px) {
        .btn-group {
            flex-direction: column;
        }

        .btn-group .btn {
            border-radius: 0.375rem !important;
            margin-bottom: 0.25rem;
        }
    }
}

/* Loading State */
.loading-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

/* Spin animation for update check button */
.spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #6c757d;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Notification Bell Badge */
.notification-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: #dc3545;
    color: white;
    border-radius: 10px;
    padding: 2px 6px;
    font-size: 0.65rem;
    font-weight: bold;
    line-height: 1;
    min-width: 18px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 10;
}

/* Bell Ring Animation */
@keyframes bell-ring {
    0% { transform: rotate(0deg); }
    10% { transform: rotate(14deg); }
    20% { transform: rotate(-8deg); }
    30% { transform: rotate(14deg); }
    40% { transform: rotate(-4deg); }
    50% { transform: rotate(10deg); }
    60% { transform: rotate(0deg); }
    100% { transform: rotate(0deg); }
}

.bell-ring {
    animation: bell-ring 1s ease-in-out;
    transform-origin: 50% 4px;
}

/* Notification Bell Container */
#notificationBell {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

#notificationBell:hover .notification-badge {
    transform: scale(1.1);
    transition: transform 0.2s ease;
}

/* =============================================================================
   Direct Messages (DM) Styles
   ============================================================================= */

/* DM Badge on notification bell (secondary badge, bottom-right, green) */
.notification-badge-dm {
    position: absolute;
    bottom: -6px;
    right: -6px;
    background-color: #198754;
    color: white;
    border-radius: 8px;
    padding: 1px 4px;
    font-size: 0.6rem;
    font-weight: bold;
    min-width: 14px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 10;
}

/* DM Messages Container */
.dm-messages-container {
    height: 50vh;
    overflow-y: auto;
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background-color: #fafafa;
}

/* DM Messages List (flex container for message alignment) */
#dmMessagesList {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

@media (max-width: 576px) {
    .dm-messages-container {
        height: calc(100vh - 200px);
    }
}

/* DM Message Bubbles */
.dm-message {
    max-width: 70%;
    padding: 0.75rem 1rem;
    border-radius: 1rem;
    word-wrap: break-word;
    animation: fadeIn 0.3s ease-in;
}

.dm-message.own {
    align-self: flex-end;
    background-color: var(--msg-own-bg);
    border: 1px solid #b8daff;
}

.dm-message.other {
    align-self: flex-start;
    background-color: var(--msg-other-bg);
    border: 1px solid var(--msg-border);
}

/* DM Message Metadata */
.dm-meta {
    font-size: 0.65rem;
    color: #adb5bd;
    margin-top: 0.25rem;
}

/* DM Status Indicators */
.dm-status {
    font-size: 0.7rem;
    margin-left: 0.25rem;
}

.dm-status.pending {
    color: #ffc107;
}

.dm-status.delivered {
    color: #198754;
}

.dm-status.timeout {
    color: #dc3545;
}

/* DM Action Buttons */
.dm-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 0.25rem;
}

.dm-action-btn {
    padding: 0.15rem 0.4rem;
    font-size: 0.75rem;
    line-height: 1;
}

/* DM Conversation List Item */
.dm-conversation-item {
    padding: 0.75rem;
    border-bottom: 1px solid #dee2e6;
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.dm-conversation-item:hover {
    background-color: #f8f9fa;
}

.dm-conversation-item.unread {
    background-color: #e7f1ff;
}

.dm-conversation-item:last-child {
    border-bottom: none;
}

/* DM Preview Text */
.dm-preview {
    font-size: 0.85rem;
    color: #6c757d;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* DM Button on channel messages - uses same class as Reply (.btn-reply) */

/* DM Empty State */
.dm-empty-state {
    text-align: center;
    padding: 2rem 1rem;
    color: #6c757d;
}

.dm-empty-state i {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

/* DM Scrollbar */
.dm-messages-container::-webkit-scrollbar {
    width: 6px;
}

.dm-messages-container::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.dm-messages-container::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

.dm-messages-container::-webkit-scrollbar-thumb:hover {
    background: #aaa;
}

/* =============================================================================
   Message Content Enhancements (Mentions, Links, Images)
   ============================================================================= */

/* Mention Badge (similar to Android Meshcore app) */
.mention-badge {
    display: inline-block;
    background-color: #0d6efd;
    color: white;
    padding: 0.15rem 0.5rem;
    border-radius: 0.75rem;
    font-size: 0.85em;
    font-weight: 500;
    margin: 0 0.1rem;
    white-space: nowrap;
}

.message.own .mention-badge {
    background-color: #084298;
}

/* Channel Links (#channelname) */
.channel-link {
    display: inline-block;
    background-color: #198754;
    color: white;
    padding: 0.15rem 0.5rem;
    border-radius: 0.75rem;
    font-size: 0.85em;
    font-weight: 500;
    margin: 0 0.1rem;
    white-space: nowrap;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.channel-link:hover {
    background-color: #157347;
    color: white;
    text-decoration: none;
}

.message.own .channel-link {
    background-color: #0f5132;
}

.message.own .channel-link:hover {
    background-color: #0d4429;
}

.channel-link.loading {
    opacity: 0.7;
    pointer-events: none;
}

.channel-link.loading::after {
    content: '...';
}

/* Quoted Text (»text«) */
.quote-text {
    font-style: italic;
    color: #6c757d;
    background-color: rgba(108, 117, 125, 0.1);
    padding: 0.1rem 0.3rem;
    border-radius: 0.25rem;
    border-left: 2px solid #6c757d;
}

.message.own .quote-text {
    color: #495057;
    background-color: rgba(8, 66, 152, 0.1);
    border-left-color: #084298;
}

/* Large Emoji for emoji-only messages */
.emoji-large {
    font-size: 2.5rem;
    line-height: 1.2;
}

/* Clickable Links in Messages */
.message-link {
    color: #0d6efd;
    text-decoration: underline;
    word-break: break-all;
}

.message-link:hover {
    color: #0a58ca;
    text-decoration: underline;
}

.message.own .message-link {
    color: #084298;
}

.message.own .message-link:hover {
    color: #052c65;
}

/* Image Thumbnails in Messages */
.message-image-container {
    margin-top: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.message-image-thumbnail {
    max-width: 300px;
    max-height: 200px;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid #dee2e6;
}

.message-image-thumbnail:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.message-image-url {
    font-size: 0.75rem;
    word-break: break-all;
}

/* Responsive image sizes on mobile */
@media (max-width: 576px) {
    .message-image-thumbnail {
        max-width: 200px;
        max-height: 150px;
    }
}

/* Image Preview Modal */
#imagePreviewModal .modal-content {
    background-color: rgba(0, 0, 0, 0.95);
}

#imagePreviewModal .modal-body {
    padding: 1rem;
}

#imagePreviewImg {
    border-radius: 0.5rem;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

/* =============================================================================
   TEST: Floating Action Buttons (FAB)
   ============================================================================= */

.fab-container {
    position: fixed;
    right: 16px;
    top: 80px;
    z-index: 900; /* Lower than offcanvas (1045) but higher than content */
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.fab {
    position: relative;  /* For badge positioning */
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}

.fab:active {
    transform: scale(0.95);
}

.fab-dm {
    background: linear-gradient(135deg, #198754 0%, #157347 100%);
    color: white;
}

.fab-contacts {
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
    color: white;
}

/* FAB Badge (base style for all badges on FAB buttons) */
.fab-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 20px;
    height: 20px;
    border-radius: 10px;
    padding: 2px 6px;
    font-size: 0.65rem;
    font-weight: bold;
    line-height: 1.4;
    text-align: center;
    color: white;
    display: none;
    z-index: 1;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* FAB Badge for Pending Contacts (red for consistency and contrast) */
.fab-badge-pending {
    background-color: #dc3545;  /* Bootstrap danger red - same as notification bell */
}

/* FAB Badge for Direct Messages (red for consistency and contrast) */
.fab-badge-dm {
    background-color: #dc3545;  /* Bootstrap danger red - same as notification bell */
}

/* Animation on hover */
.fab:hover .fab-badge {
    transform: scale(1.1);
    transition: transform 0.2s ease;
}

/* Mobile optimization */
@media (max-width: 768px) {
    .fab-container {
        right: 12px;
        top: 70px;
        gap: 10px;
    }

    .fab {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }
}

/* =============================================================================
   PWA Safe Area Handling
   ============================================================================= */

/* Ensure bottom UI is visible above system bars on mobile devices */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    body {
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* =============================================================================
   PWA Notifications
   ============================================================================= */

/* Notification toggle disabled state */
#notificationsToggle:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* =============================================================================
   Leaflet Map Modal
   ============================================================================= */

#mapModal .modal-body {
    min-height: 400px;
}

#leafletMap {
    z-index: 1;
}

/* Fix Leaflet controls z-index in Bootstrap modal */
.leaflet-top,
.leaflet-bottom {
    z-index: 1000;
}

/* =============================================================================
   Message Action Buttons
   ============================================================================= */

/* Icon-only action buttons on message bubbles */
.btn-msg-action {
    width: 28px;
    height: 28px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
}

/* =============================================================================
   Map Filter Badges
   ============================================================================= */

/* Clickable map filter badges */
.map-filter-badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.15s ease-in-out;
    user-select: none;
}

.map-filter-badge[data-type="1"] {
    color: #2196F3;
    background-color: white;
    border: 2px solid #2196F3;
}
.map-filter-badge[data-type="1"].active {
    color: white;
    background-color: #2196F3;
}

.map-filter-badge[data-type="2"] {
    color: #4CAF50;
    background-color: white;
    border: 2px solid #4CAF50;
}
.map-filter-badge[data-type="2"].active {
    color: white;
    background-color: #4CAF50;
}

.map-filter-badge[data-type="3"] {
    color: #9C27B0;
    background-color: white;
    border: 2px solid #9C27B0;
}
.map-filter-badge[data-type="3"].active {
    color: white;
    background-color: #9C27B0;
}

.map-filter-badge[data-type="4"] {
    color: #FF9800;
    background-color: white;
    border: 2px solid #FF9800;
}
.map-filter-badge[data-type="4"].active {
    color: #212529;
    background-color: #FF9800;
}

/* =============================================================================
   Mentions Autocomplete Popup
   ============================================================================= */

.mentions-popup {
    position: absolute;
    bottom: 100%;
    left: 0;
    z-index: 1001;
    margin-bottom: 0.5rem;
    max-height: 200px;
    width: 280px;
    overflow-y: auto;
    background-color: white;
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.mentions-popup.hidden {
    display: none;
}

.mentions-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mention-item {
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.9rem;
    transition: background-color 0.1s ease;
}

.mention-item:last-child {
    border-bottom: none;
}

.mention-item:hover,
.mention-item.highlighted {
    background-color: #e7f1ff;
}

.mention-item-name {
    font-weight: 500;
}

.mentions-empty {
    padding: 0.75rem;
    text-align: center;
    color: #6c757d;
    font-size: 0.85rem;
}

/* Mobile responsive */
@media (max-width: 576px) {
    .mentions-popup {
        width: 100%;
        max-width: none;
        left: 0;
        right: 0;
    }
}

/* Mentions popup scrollbar */
.mentions-popup::-webkit-scrollbar {
    width: 6px;
}

.mentions-popup::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.mentions-popup::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

.mentions-popup::-webkit-scrollbar-thumb:hover {
    background: #aaa;
}

/* =============================================================================
   Scroll to Bottom Button
   ============================================================================= */

.scroll-to-bottom-btn {
    position: absolute;
    bottom: 1rem;
    right: 1.5rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background-color: rgba(var(--bs-primary-rgb), 0.7);
    color: white;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease, background-color 0.15s ease;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.scroll-to-bottom-btn.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-bottom-btn:hover {
    background-color: rgba(var(--bs-primary-rgb), 0.9);
}

.scroll-to-bottom-btn:active {
    transform: scale(0.95);
}

/* =============================================================================
   Echo Badge - "Heard X repeats" indicator for sent messages
   ============================================================================= */

.echo-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
    color: #198754;
    padding: 0.2rem 0.4rem;
    margin-right: 0.25rem;
    border-radius: 0.25rem;
    background-color: rgba(25, 135, 84, 0.1);
}

.echo-badge i {
    font-size: 0.65rem;
}

/* Dark mode support */
[data-bs-theme="dark"] .echo-badge {
    color: #75b798;
    background-color: rgba(117, 183, 152, 0.15);
}

/* Path info in message meta (incoming messages) */
.path-info {
    cursor: pointer;
    border-bottom: 1px dotted currentColor;
    position: relative;
}

/* Path popup (mobile-friendly tooltip) */
.path-popup {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: #fff;
    padding: 0.35rem 0.6rem;
    border-radius: 0.375rem;
    font-size: 0.7rem;
    white-space: nowrap;
    z-index: 1000;
    pointer-events: none;
    margin-bottom: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

/* =============================================================================
   Chat Filter
   ============================================================================= */

/* Filter FAB button (gray gradient) */
.fab-filter {
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    color: white;
}

/* Filter bar overlay - slides down from top of chat area */
.filter-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1002;  /* Above mentions popup (1001) */
    background-color: #ffffff;
    border-bottom: 1px solid #dee2e6;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    padding: 0.75rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
}

.filter-bar.visible {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

/* Filter bar inner layout */
.filter-bar-inner {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-bar-input {
    flex: 1;
    border-radius: 0.375rem;
    border: 1px solid #ced4da;
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
}

.filter-bar-input:focus {
    outline: none;
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Filter bar buttons */
.filter-bar-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.filter-bar-btn-clear {
    background-color: #f8f9fa;
    color: #6c757d;
}

.filter-bar-btn-clear:hover {
    background-color: #e9ecef;
}

.filter-bar-btn-close {
    background-color: #dc3545;
    color: white;
}

.filter-bar-btn-close:hover {
    background-color: #bb2d3b;
}

/* Filter match count indicator */
.filter-match-count {
    font-size: 0.75rem;
    color: #6c757d;
    white-space: nowrap;
    padding: 0 0.5rem;
}

/* Highlighted text in filtered messages */
.filter-highlight {
    background-color: #fff3cd;
    border-radius: 0.2rem;
    padding: 0 0.1rem;
}

/* Hidden messages when filtering */
.message-wrapper.filter-hidden,
.dm-message.filter-hidden {
    display: none !important;
}

/* No matches message */
.filter-no-matches {
    text-align: center;
    padding: 2rem;
    color: #6c757d;
}

.filter-no-matches i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: block;
}

/* Mobile responsive filter bar */
@media (max-width: 576px) {
    .filter-bar {
        padding: 0.5rem;
    }

    .filter-bar-input {
        font-size: 0.85rem;
        padding: 0.4rem 0.6rem;
    }

    .filter-bar-btn {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
}