/* static/css/chat_bubbles.css */
/*
=================================
INTERAKTIVNÍ BUBLINY A PLOVOUCÍ OKNA - REDESIGN v3 (s dokem v hlavičce)
=================================
*/

/* --- Kontejner pro plovoucí Chatovací Okna --- */
#chat-windows-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1040;
    pointer-events: none;
    overflow: hidden;
}

/* --- NOVÉ: Dok pro minimalizované bubliny v hlavičce --- */
#minimized-bubbles-dock {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 100%;
    min-width: 0;
    padding: 0 1rem;
}

/* --- Vzhled samotného okna --- */
.chat-window-popup {
    width: 360px;
    height: 480px;
    background-color: var(--c-bg-container);
    border: 1px solid var(--c-border);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    pointer-events: all;
    position: absolute;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1),
        height 0.3s cubic-bezier(0.4, 0, 0.2, 1),
        border-radius 0.35s cubic-bezier(0.4, 0, 0.2, 1),
        box-shadow 0.2s,
        opacity 0.3s,
        transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 320px;
    min-height: 250px;
    right: auto !important;
    bottom: auto !important;
}

.chat-window-popup.is-resizing {
    transition: none;
}

.chat-window-popup:not(.minimized):focus-within {
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px var(--c-primary-focus-shadow), 0 12px 42px rgba(0, 0, 0, 0.2);
    transform: translateY(-4px);
}

/*
==================================================================
STYLY PRO MINIMALIZOVANOU BUBLINU (DOKOVANÝ STAV)
==================================================================
*/

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0px var(--c-primary-subtle);
    }

    100% {
        box-shadow: 0 0 0 10px rgba(0, 123, 255, 0);
    }
}

.chat-window-popup.minimized {
    position: relative !important;
    top: auto !important;
    left: auto !important;
    width: 42px !important;
    height: 42px !important;
    min-height: 42px;
    min-width: 42px;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    overflow: hidden;
    flex-shrink: 0;
}

.chat-window-popup.minimized:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.chat-window-popup.minimized.new-message-indicator::after {
    content: '';
    position: absolute;
    top: -2px;
    right: -2px;
    width: 12px;
    height: 12px;
    background-color: var(--c-danger);
    border: 2px solid var(--c-bg-container);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
    z-index: 10;
}

.chat-window-popup.minimized .popup-header-info,
.chat-window-popup.minimized .popup-controls,
.chat-window-popup.minimized .popup-content-wrapper {
    display: none !important;
}

.chat-window-popup.minimized .popup-header,
.chat-window-popup.minimized .popup-header-avatars {
    width: 100%;
    height: 100%;
    padding: 0;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-window-popup.minimized .popup-header {
    background: transparent;
    cursor: grab;
}

.chat-window-popup.minimized .popup-header:active {
    cursor: grabbing;
}

.chat-window-popup.minimized .popup-group-avatar {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover;
    border-radius: 50%;
    border: none !important;
    padding: 0 !important;
    position: static !important;
}

/* Styly pro jQuery UI Sortable */
#minimized-bubbles-dock .ui-sortable-placeholder {
    width: 42px;
    height: 42px;
    background: var(--c-border);
    border-radius: 50%;
    visibility: visible !important;
    flex-shrink: 0;
}

#minimized-bubbles-dock .ui-sortable-helper {
    transform: scale(1.15);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    cursor: grabbing;
    z-index: 9999 !important;
}

/* --- Hlavička okna --- */
.popup-header {
    background-color: var(--c-bg-subtle);
    padding: 0.1rem 0.75rem;
    border-bottom: 1px solid var(--c-border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: move;
    flex-shrink: 0;
    user-select: none;
    min-height: 42px;
    transition: background-color 0.3s ease;
}

.popup-header-avatars {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.popup-group-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--c-bg-body);
}

.popup-header-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.popup-title {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.3s ease;
    line-height: 1.2;
}

.popup-participants-list {
    display: flex;
    align-items: center;
    margin-top: 2px;
    height: 20px;
}

.participant-mini-avatar {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--c-bg-subtle);
    margin-left: -6px;
    transition: transform 0.2s ease;
    cursor: help;
}

.participant-mini-avatar:first-child {
    margin-left: 0;
}

.participant-mini-avatar:hover {
    transform: scale(1.2);
    z-index: 5;
}

.popup-controls {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.popup-btn {
    background: none;
    border: none;
    color: var(--c-text-muted);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s, transform 0.15s ease;
}

.popup-btn .fa-fw {
    font-size: 0.8em;
}

.popup-btn:hover {
    background-color: var(--c-border-light);
    color: var(--c-text);
    transform: scale(1.1);
}

.popup-btn.btn-close:hover {
    background-color: var(--c-danger-subtle);
    color: var(--c-danger);
}

/* --- Blikání hlavičky při nové zprávě --- */
@keyframes headerFlash {

    0%,
    100% {
        background-color: var(--c-bg-subtle);
    }

    50% {
        background-color: var(--c-primary-subtle);
    }
}

.popup-header.new-message-flash {
    animation: headerFlash 1.5s ease-in-out;
}

/* --- Obsah okna (zprávy a input) --- */
.popup-content-wrapper {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    transition: opacity 0.2s 0.1s ease;
}

.popup-messages-container {
    flex-grow: 1;
    overflow-y: auto;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    background-color: var(--c-bg-body);
    scrollbar-width: thin;
    scrollbar-color: var(--c-border) var(--c-bg-body);
}

.popup-messages-container::-webkit-scrollbar {
    width: 8px;
}

.popup-messages-container::-webkit-scrollbar-track {
    background: transparent;
}

.popup-messages-container::-webkit-scrollbar-thumb {
    background-color: var(--c-border);
    border-radius: 10px;
    border: 3px solid var(--c-bg-body);
}

/* --- Struktura jedné zprávy --- */
.message-wrapper-small {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    position: relative;
    padding: 4px 0;
    max-width: 95%;
    align-self: flex-start;
}

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

.message-avatar-small {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    margin-top: 4px;
}

.message-content-small {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    min-width: 0;
}

.message-author {
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 2px;
    color: var(--c-text-muted);
    padding: 0 0.8rem;
}

.message-wrapper-small.sent .message-author {
    display: none;
}

/* --- Samotná bublina zprávy --- */
.message-bubble-small {
    padding: 0.5rem 0.8rem;
    border-radius: 1rem;
    word-break: break-word;
    font-size: 0.9rem;
    line-height: 1.5;
    position: relative;
    opacity: 0;
    transform: translateY(10px);
    animation: slideInUp 0.3s ease forwards;
}

@keyframes slideInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-text-small p:last-child {
    margin-bottom: 0;
}

.message-wrapper-small.received .message-bubble-small {
    background-color: var(--c-bg-subtle);
    border-bottom-left-radius: 4px;
}

.message-wrapper-small.sent .message-bubble-small {
    background-color: var(--c-primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.message-wrapper-small.sent .message-bubble-small a {
    color: #fff;
    text-decoration: underline;
}

.message-meta-small {
    font-size: 0.7rem;
    text-align: right;
    color: var(--c-text-muted);
    opacity: 0.8;
    margin-top: 4px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

.message-meta-small span {
    flex-shrink: 0;
}

.message-wrapper-small.sent .message-meta-small {
    color: rgba(255, 255, 255, 0.7);
}

/* --- Akční menu (tři tečky) --- */
.message-actions-small {
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.message-wrapper-small:hover .message-actions-small {
    opacity: 1;
}

.message-wrapper-small.received .message-actions-small {
    right: -32px;
}

.message-wrapper-small.sent .message-actions-small {
    left: -32px;
}

.message-actions-small .popup-btn {
    width: 24px;
    height: 24px;
    font-size: 0.9rem;
}

/* --- Obrázky v bublinách --- */
.message-text-small img {
    cursor: pointer;
    border-radius: 12px;
    max-width: 100%;
    max-height: 300px;
    height: auto;
    object-fit: cover;
    display: block;
    margin-top: 8px;
    margin-bottom: 8px;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease;
}

.message-text-small img:hover {
    transform: scale(1.03);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.12);
}

/* --- Kontext odpovědi --- */
.reply-context-small {
    padding: 6px 10px;
    margin: -4px -8px 8px -8px;
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: 8px 8px 0 0;
    font-size: 0.8em;
    border-left: 3px solid var(--c-primary);
    cursor: pointer;
}

.dark-mode .reply-context-small,
.message-wrapper-small.sent .reply-context-small {
    background-color: rgba(255, 255, 255, 0.1);
}

.reply-context-small strong {
    color: var(--c-primary);
}

.message-wrapper-small.sent .reply-context-small strong {
    color: #fff;
    font-weight: 600;
}

.reply-context-small p {
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--c-text-muted);
}

.message-wrapper-small.sent .reply-context-small p {
    color: rgba(255, 255, 255, 0.8);
}

/* --- Náhled odpovědi nad inputem --- */
.popup-reply-preview {
    display: flex;
    align-items: center;
    padding: 8px;
    margin-bottom: 8px;
    background-color: var(--c-bg-subtle);
    border-radius: 8px;
    border-left: 4px solid var(--c-primary);
    animation: fadeIn 0.3s ease;
}

.dark-mode .popup-reply-preview {
    background-color: var(--c-bg-subtle-dark);
}

.popup-reply-preview .reply-content {
    flex-grow: 1;
    font-size: 0.85rem;
    overflow: hidden;
}

.popup-reply-preview .reply-author {
    font-weight: 600;
}

.popup-reply-preview .reply-text {
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--c-text-muted);
}

.popup-reply-preview .btn-cancel-reply {
    font-size: 1.1rem;
    width: 24px;
    height: 24px;
    padding: 0;
}

/* --- Oblast pro psaní zprávy --- */
.popup-input-area {
    padding: 0.5rem;
    border-top: 1px solid var(--c-border);
    flex-shrink: 0;
    background-color: var(--c-bg-container);
}

.popup-input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
}

.popup-input-area .tiptap-editor-wrapper {
    flex-grow: 1;
    border-radius: 18px;
    border: 1px solid var(--c-border);
    transition: border-color 0.2s, box-shadow 0.2s;
    background-color: var(--c-bg-body);
    min-width: 0;
}

.popup-input-area .tiptap-editor-wrapper:focus-within {
    border-color: var(--c-primary);
    box-shadow: 0 0 0 2px var(--c-primary-focus-shadow);
}

.popup-input-area .ProseMirror {
    min-height: 42px;
    max-height: 100px;
    overflow-y: auto;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.popup-input-area .ProseMirror p {
    margin: 0;
}

.popup-actions {
    display: flex;
    gap: 0.25rem;
    align-items: flex-end;
}

.popup-actions .popup-btn,
.popup-actions .popup-send-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    flex-shrink: 0;
    font-size: 1rem;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color .2s, transform .2s, color .2s;
    border: none;
}

.popup-actions .popup-btn {
    background: transparent;
    color: var(--c-text-muted);
}

.popup-actions .popup-btn:hover {
    background-color: var(--c-border-light);
    color: var(--c-text);
}

body.dark-mode .popup-actions .popup-btn:hover {
    background-color: var(--c-border-light-dark);
}

.popup-send-btn {
    background-color: var(--c-primary);
    color: white;
}

.popup-send-btn:hover {
    background-color: var(--c-primary-hover);
    transform: scale(1.05);
}

.popup-send-btn:disabled {
    background-color: var(--c-border);
    cursor: not-allowed;
    transform: none;
}

/* --- Náhledy příloh --- */
.attachment-previews-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 4px 8px 4px;
    max-height: 120px;
    overflow-y: auto;
}

.attachment-previews-container.bubble-previews {
    padding: 0 0.25rem 0.5rem 0.25rem;
    max-height: 100px;
}

.attachment-preview-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--c-bg-body);
    border: 1px solid var(--c-border-light);
    border-radius: 20px;
    padding: 4px 8px 4px 12px;
    font-size: 0.8rem;
    animation: fadeIn 0.3s ease;
}

body.dark-mode .attachment-preview-item {
    background-color: var(--c-bg-body-dark);
    border-color: var(--c-border-dark);
}

.attachment-preview-icon {
    color: var(--c-text-muted);
}

.attachment-preview-name {
    font-weight: 500;
    max-width: 150px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.attachment-preview-size {
    color: var(--c-text-muted);
}

.attachment-preview-status {
    width: 16px;
    height: 16px;
}

.attachment-preview-remove {
    opacity: 0.6;
}

.attachment-preview-remove:hover {
    opacity: 1;
}

/* --- Přílohy ve zprávách --- */
.message-attachments-container {
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.message-attachment-item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
    border-radius: 8px;
    background-color: rgba(0, 0, 0, 0.05);
    text-decoration: none;
    color: var(--c-text);
    transition: background-color .2s;
    border: 1px solid transparent;
    position: relative;
}

.message-attachment-item:hover {
    background-color: rgba(0, 0, 0, 0.08);
    border-color: var(--c-border);
}

.message-wrapper-small.sent .message-attachment-item {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.message-wrapper-small.sent .message-attachment-item:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.attachment-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.attachment-info {
    overflow: hidden;
    flex-grow: 1;
}

.attachment-name {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

.attachment-size {
    font-size: 0.75rem;
    opacity: 0.8;
    display: block;
}

/* Tlačítko pro smazání přílohy */
.delete-attachment-btn {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--c-danger);
    color: white;
    border: none;
    font-size: 0.7rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.message-attachment-item:hover .delete-attachment-btn {
    opacity: 1;
}

.delete-attachment-btn:hover {
    background: var(--c-danger-hover);
    transform: scale(1.1);
}

/* Styly pro video a audio přehrávače */
.message-attachment-item video,
.message-attachment-item audio {
    max-width: 100%;
    border-radius: 6px;
}

.message-attachment-item img {
    max-width: 200px;
    max-height: 150px;
    border-radius: 6px;
    object-fit: cover;
}

/* --- Reakce na zprávy --- */
.message-reactions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 6px;
    padding: 0 0.75rem;
}

.message-wrapper-small.sent .message-reactions {
    justify-content: flex-end;
}

.message-wrapper-small.received .message-reactions {
    justify-content: flex-start;
}

.reaction-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    background-color: var(--c-bg-subtle);
    border: 1px solid var(--c-border);
    border-radius: 15px;
    padding: 2px 8px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--c-text-muted);
}

.reaction-btn:hover {
    background-color: var(--c-bg-container);
    border-color: var(--c-border-light);
    color: var(--c-text);
}

.reaction-btn i {
    font-size: 0.9em;
}

.reaction-btn.active {
    background-color: var(--c-primary-bg-subtle);
    border-color: var(--c-primary);
    color: var(--c-primary-text-emphasis);
}

.reaction-btn.active:hover {
    background-color: var(--c-primary-bg-subtle);
    filter: brightness(0.95);
}

body.dark-mode .reaction-btn {
    background-color: var(--c-bg-subtle-dark);
    border-color: var(--c-border-dark);
    color: var(--c-text-muted-dark);
}

body.dark-mode .reaction-btn:hover {
    background-color: var(--c-bg-container-dark);
    border-color: var(--c-border-light-dark);
    color: var(--c-text-dark);
}

body.dark-mode .reaction-btn.active {
    background-color: var(--c-primary-bg-subtle-dark);
    border-color: var(--c-primary-dark-val);
    color: var(--c-primary-dark-theme);
}

body.dark-mode .reaction-btn.active:hover {
    background-color: var(--c-primary-bg-subtle-dark);
    filter: brightness(0.9);
}

.message-wrapper-small.sent .reaction-btn {
    background-color: var(--c-bg-subtle);
    border-color: var(--c-border);
    color: var(--c-text);
}

.message-wrapper-small.sent .reaction-btn:hover {
    background-color: var(--c-bg-container);
    border-color: var(--c-border-light);
    color: var(--c-text);
}

.message-wrapper-small.sent .reaction-btn.active {
    background-color: var(--c-primary-bg-subtle);
    border-color: var(--c-primary);
    color: var(--c-primary-text-emphasis);
}

.message-wrapper-small.sent .reaction-btn.active i {
    color: var(--c-primary);
}

body.dark-mode .message-wrapper-small.sent .reaction-btn {
    background-color: var(--c-bg-subtle-dark);
    border-color: var(--c-border-dark);
    color: var(--c-text-dark);
}

body.dark-mode .message-wrapper-small.sent .reaction-btn:hover {
    background-color: var(--c-bg-container-dark);
    border-color: var(--c-border-light-dark);
    color: var(--c-text-dark);
}

body.dark-mode .message-wrapper-small.sent .reaction-btn.active {
    background-color: var(--c-primary-bg-subtle-dark);
    border-color: var(--c-primary-dark-val);
    color: var(--c-primary-dark-theme);
}

/* --- Archiv zpráv --- */
.archive-loader-small {
    margin: 0.5rem 0;
}

.load-archive-btn-small {
    font-size: 0.8rem;
    padding: 0.25rem 0.5rem;
}

/* --- Popover pro reakce --- */
.reaction-popover .popover-body {
    padding: .5rem .6rem;
    max-width: 260px;
}

.reaction-popover .reaction-users {
    display: grid;
    grid-template-columns: 1fr;
    gap: .25rem;
}

.reaction-popover .reaction-user {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .2rem 0;
}

.reaction-popover .reaction-user img {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.reaction-popover .reaction-user-name {
    font-size: .9rem;
    line-height: 1.2;
}

/* --- Funkce "přečteno" (seen by) --- */
.seen-by-container {
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
    justify-content: flex-start;
    min-height: 18px;
}

.seen-by-avatar {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--c-primary);
    margin-right: -8px;
    object-fit: cover;
    transition: transform 0.2s ease;
    cursor: pointer;
}

body.dark-mode .seen-by-avatar {
    border-color: var(--c-primary-dark-theme);
}

.seen-by-avatar:hover {
    transform: scale(1.2) translateY(-1px);
    z-index: 10;
}

/* --- Dark Mode --- */
body.dark-mode .chat-window-popup {
    background-color: var(--c-bg-container-dark);
    border-color: var(--c-border-dark);
}

body.dark-mode .popup-header {
    background-color: var(--c-bg-subtle-dark);
    border-bottom-color: var(--c-border-dark);
}

body.dark-mode .popup-messages-container {
    background-color: var(--c-bg-body-dark);
}

body.dark-mode .message-wrapper-small.received .message-bubble-small {
    background-color: var(--c-bg-subtle-dark);
}

body.dark-mode .message-wrapper-small.sent .message-bubble-small {
    background-color: var(--c-primary-dark-theme);
    color: var(--c-text-dark);
}

body.dark-mode .popup-input-area .tiptap-editor-wrapper {
    background-color: var(--c-bg-subtle-dark);
    border-color: var(--c-border-dark);
}

body.dark-mode .popup-btn:hover {
    background-color: var(--c-border-light-dark);
}

body.dark-mode .popup-btn.btn-close:hover {
    background-color: var(--c-danger-subtle);
    color: var(--c-danger);
}

/* --- Styly pro jQuery UI Resizable & Draggable --- */
.ui-resizable-handle {
    background: transparent;
    border: 0;
    z-index: 100;
}

.ui-resizable-se {
    width: 20px;
    height: 20px;
    right: 1px;
    bottom: 1px;
    cursor: se-resize;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%236c757d' d='M8 10H10V8L8 10ZM5 10H7V8L5 10ZM8 7H10V5L8 7Z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: bottom right;
    opacity: 0.6;
}

body.dark-mode .ui-resizable-se {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%23adb5bd' d='M8 10H10V8L8 10ZM8 7H10V5L8 7Z'/%3E%3C/svg%3E");
}

/* --- Image Lightbox --- */
.image-lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: zoom-out;
    animation: fadeIn 0.25s ease;
}

.image-lightbox-overlay.fade-out {
    animation: fadeOut 0.25s ease forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes zoomOut {
    from {
        opacity: 1;
        transform: scale(1);
    }

    to {
        opacity: 0;
        transform: scale(0.95);
    }
}

.image-lightbox-overlay img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    cursor: default;
    animation: zoomIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.image-lightbox-overlay img.zoom-out {
    animation: zoomOut 0.25s ease-in forwards;
}

.lightbox-close-btn {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 2.5rem;
    font-weight: 300;
    color: #fff;
    background: none;
    border: none;
    cursor: pointer;
    line-height: 1;
    opacity: 0.8;
    transition: opacity 0.2s, transform 0.2s;
}

.lightbox-close-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* --- NOVÉ: Indikátor psaní --- */
.popup-typing-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0.75rem;
    height: 30px;
    /* Pevná výška, aby neskákal layout */
    border-top: 1px solid var(--c-border);
    background-color: var(--c-bg-body);
    flex-shrink: 0;
    overflow: hidden;
}

body.dark-mode .popup-typing-indicator {
    background-color: var(--c-bg-body-dark);
    border-top-color: var(--c-border-dark);
}

.typing-text {
    font-size: 0.8rem;
    color: var(--c-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-left: 4px;
}

.typing-dots {
    display: flex;
    align-items: center;
    gap: 3px;
}

.typing-dots span {
    width: 6px;
    height: 6px;
    background-color: var(--c-text-muted);
    border-radius: 50%;
    animation: typing-bounce 1.4s infinite both;
}

.typing-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes typing-bounce {

    0%,
    80%,
    100% {
        transform: scale(0);
    }

    40% {
        transform: scale(1.0);
    }
}

/* --- Konec indikátoru psaní --- */