:root {

    --primary-bg: #0F172A;
    --secondary-bg: #1E293B;
    --accent-color: #6366F1;
    --accent-light: #818CF8;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --border-color: #334155;
    --hover-color: #475569;
    --incoming-bg: #334155;
    --outgoing-bg: #312E81;
    --online-color: #2DCC71;


    --nav-width: 70px;
    --sidebar-width: 320px;
    --header-height: 65px;
    --footer-height: 75px;
    --border-radius: 12px;


    --transition: all 0.3s ease;
    --scale-animation: scale(1.05);
}

body.light-theme {
    --primary-bg: #F1F5F9;
    --secondary-bg: #FFFFFF;
    --accent-color: #4F46E5;
    --accent-light: #6366F1;
    --text-primary: #0F172A;
    --text-secondary: #64748B;
    --border-color: #CBD5E1;
    --hover-color: #E2E8F0;
    --incoming-bg: #E2E8F0;
    --outgoing-bg: #DBEAFE;
}

body.light-theme {
    background-color: var(--primary-bg);
}

/* --- Splash screen --- */
body.light-theme #splash-screen {
    background: linear-gradient(135deg, #FFFFFF 0%, #EEF2FF 100%);
}

body.light-theme .splash-text {
    color: var(--text-primary);
}

/* --- Nav bar --- */
body.light-theme .app-nav {
    background-color: var(--secondary-bg);
    border-right-color: var(--border-color);
}

body.light-theme .nav-btn {
    color: var(--text-secondary);
}

body.light-theme .nav-btn:hover {
    color: var(--text-primary);
    background-color: var(--hover-color);
}

body.light-theme .nav-btn.active {
    color: white;
    background-color: var(--accent-color);
}

/* --- Sidebar --- */
body.light-theme .sidebar {
    background-color: var(--secondary-bg) !important;
    border-right-color: var(--border-color);
}

/* --- Headers --- */
body.light-theme .app-header {
    background-color: var(--secondary-bg) !important;
}

body.light-theme .main-app-header {
    background-color: var(--primary-bg) !important;
}

/* --- Search box --- */
body.light-theme .search-box {
    background-color: var(--primary-bg);
    border-color: var(--border-color);
}

body.light-theme .search-box i {
    color: var(--text-secondary);
}

body.light-theme .search-box input,
body.light-theme .search-box1 {
    color: var(--text-primary) !important;
}

/* --- Chat items --- */
body.light-theme .chat-item:hover {
    background-color: var(--hover-color);
}

body.light-theme .chat-item.active {
    background-color: #EEF2FF;
    border-left-color: var(--accent-color);
}

body.light-theme .chat-name {
    color: var(--text-primary);
}

body.light-theme .last-message {
    color: var(--text-secondary);
}

body.light-theme .chat-time {
    color: var(--text-secondary);
}

/* --- Chat header --- */
body.light-theme .chat-header {
    background-color: var(--secondary-bg) !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

/* --- Main content background --- */
body.light-theme .main-content {
    background-color: var(--primary-bg);
}

/* --- Messages --- */
body.light-theme .messages-container {
    background-color: var(--primary-bg) !important;
}

body.light-theme .message.incoming,
body.light-theme .incoming {
    background-color: var(--secondary-bg);
    color: var(--text-primary);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

body.light-theme .message.outgoing,
body.light-theme .outgoing {
    background-color: #DBEAFE;
    color: var(--text-primary);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

body.light-theme .message-time {
    color: var(--text-secondary);
}

/* --- Message input --- */
body.light-theme .message-input-container {
    background-color: var(--secondary-bg) !important;
    box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.04);
}

body.light-theme .message-input {
    background-color: var(--primary-bg);
    color: var(--text-primary);
}

body.light-theme .attachment-btn,
body.light-theme .voice-btn {
    color: var(--text-secondary);
}

body.light-theme .attachment-btn:hover,
body.light-theme .voice-btn:hover {
    background-color: var(--hover-color);
    color: var(--text-primary);
}

body.light-theme .send-btn {
    background-color: var(--accent-color);
    color: white;
}

/* --- Back button --- */
body.light-theme .back-btn {
    color: var(--text-primary);
}

body.light-theme .back-btn:hover {
    background-color: var(--hover-color);
}

/* --- Action buttons (call/video/menu) --- */
body.light-theme .action-btn {
    color: var(--text-secondary);
}

body.light-theme .action-btn:hover {
    background-color: var(--hover-color);
    color: var(--accent-color);
}

/* --- Dropdown menus --- */
body.light-theme .dropdown-menu,
body.light-theme .chat-dropdown-menu {
    background-color: var(--secondary-bg);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

body.light-theme .dropdown-item:hover,
body.light-theme .chat-dropdown-item:hover {
    background-color: var(--hover-color);
}

body.light-theme .dropdown-divider,
body.light-theme .chat-dropdown-divider {
    background-color: var(--border-color);
}

/* --- Pages (Settings, Profile, etc.) --- */
body.light-theme .page,
body.light-theme .page-header {
    background-color: var(--primary-bg) !important;
}

body.light-theme .page-title {
    color: var(--text-primary);
}

/* --- Settings --- */
body.light-theme .settings-item {
    border-bottom-color: var(--border-color);
    color: var(--text-primary);
}

body.light-theme .settings-content h3 {
    color: var(--text-primary);
}

body.light-theme .settings-content p {
    color: var(--text-secondary);
}

/* --- Switch (toggle) --- */
body.light-theme .slider {
    background-color: #CBD5E1;
}

body.light-theme input:checked + .slider {
    background-color: var(--accent-color) !important;
}

/* --- Forms --- */
body.light-theme .form-input,
body.light-theme .select-input {
    background-color: var(--primary-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
}

body.light-theme .form-input:focus,
body.light-theme .select-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.15);
}

body.light-theme .form-label {
    color: var(--text-primary);
}

/* --- Modals --- */
body.light-theme .modal {
    background-color: rgba(15, 23, 42, 0.4);
}

body.light-theme .modal-content {
    background-color: var(--secondary-bg);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

body.light-theme .modal-title {
    color: var(--text-primary);
}

body.light-theme .close-btn {
    color: var(--text-secondary);
}

body.light-theme .close-btn:hover {
    background-color: var(--hover-color);
    color: var(--text-primary);
}

body.light-theme .modal-btn.secondary {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    border-color: var(--border-color);
}

/* --- Profile --- */
body.light-theme .profile-info {
    background-color: var(--secondary-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

body.light-theme .info-item {
    border-bottom-color: var(--border-color);
}

body.light-theme .info-label {
    color: var(--text-secondary);
}

body.light-theme .info-value {
    color: var(--text-primary);
}

body.light-theme .profile-status {
    color: var(--text-secondary);
}

body.light-theme .profile-name {
    color: var(--text-primary);
}

body.light-theme .edit-form {
    background-color: var(--secondary-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

body.light-theme .cancel-btn {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    border-color: var(--border-color);
}

/* --- Auth (Login/Register) --- */
body.light-theme .auth-avatar-preview {
    background-color: var(--primary-bg);
    border-color: var(--border-color);
    color: var(--text-secondary);
}

body.light-theme .auth-avatar-preview:hover {
    border-color: var(--accent-light);
    background-color: var(--hover-color);
}

body.light-theme .form-switch-link {
    color: var(--text-secondary);
}

body.light-theme .form-switch-link a {
    color: var(--accent-color);
}

/* --- Checkboxes --- */
body.light-theme .checkmark {
    background-color: var(--primary-bg);
    border-color: var(--border-color);
}

body.light-theme .contact-item.selected {
    background-color: rgba(79, 70, 229, 0.08);
}

/* --- Welcome message --- */
body.light-theme .welcome-message {
    color: var(--text-secondary);
}

body.light-theme .welcome-message p:first-child {
    color: var(--text-primary);
}

/* --- Call container --- */
body.light-theme .call-container {
    background-color: rgba(15, 23, 42, 0.5);
}

body.light-theme .call-window {
    background: linear-gradient(135deg, #FFFFFF, #F1F5F9);
    color: var(--text-primary);
}

body.light-theme .call-name {
    color: var(--text-primary);
}

body.light-theme .call-status {
    color: var(--text-secondary);
}

/* --- Storage page --- */
body.light-theme .storage-progress {
    background: var(--hover-color) !important;
}

/* --- About page --- */
body.light-theme .about-content {
    color: var(--text-primary);
}

body.light-theme .about-info p {
    color: var(--text-secondary);
}

body.light-theme .about-link {
    color: var(--accent-color);
}

body.light-theme .about-copyright {
    color: var(--text-secondary);
}

body.light-theme .app-version {
    color: var(--text-secondary);
}

/* --- Group member cards --- */
body.light-theme .group-member {
    background-color: var(--secondary-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

body.light-theme .group-member:hover {
    background-color: var(--hover-color);
}

/* --- Group avatar edit --- */
body.light-theme .group-avatar-edit {
    background-color: var(--secondary-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* --- Profile edit button --- */
body.light-theme .profile-edit {
    background-color: var(--secondary-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* --- Language switcher --- */
body.light-theme .lang-btn {
    color: var(--text-secondary);
}

body.light-theme .lang-btn.active {
    background-color: var(--accent-color);
    color: white;
}

/* --- Voice message button --- */
body.light-theme .voice-play-btn {
    background-color: rgba(0, 0, 0, 0.08);
}

body.light-theme .voice-play-btn:hover {
    background-color: rgba(0, 0, 0, 0.12);
}

/* --- Scrollbar --- */
body.light-theme ::-webkit-scrollbar-thumb {
    background: var(--accent-color) !important;
}

body.light-theme ::-webkit-scrollbar-track {
    background: var(--hover-color);
}

/* --- Online indicator border fix --- */
body.light-theme .chat-avatar.online::after {
    border-color: var(--secondary-bg);
}

body.light-theme .sidebar .chat-avatar.online::after {
    border-color: var(--secondary-bg);
}

/* --- Sidebar buttons --- */
body.light-theme .sidebar-btn {
    color: white;
}

/* --- Profile navigation --- */
body.light-theme .profile-navigation {
    background-color: var(--secondary-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

body.light-theme .profile-nav-btn {
    color: var(--text-primary);
}

body.light-theme .profile-nav-btn:hover {
    background-color: var(--hover-color);
}

body.light-theme .profile-nav-btn.active {
    color: var(--accent-color);
}

/* --- Logout button --- */
body.light-theme .logout-button {
    color: var(--accent-color);
}

/* --- Recording indicator --- */
body.light-theme .recording-indicator {
    background-color: var(--accent-color);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    transition: var(--transition);
}


::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color) !important;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-light);
}


@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes slideIn {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

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

@keyframes wave {
    0% {
        height: 5px;
    }

    50% {
        height: 20px;
    }

    100% {
        height: 5px;
    }
}


#splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #121212 0%, #2a0c00 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.5s ease;
}

.splash-logo {
    font-size: 4rem;
    color: var(--accent-color);
    margin-bottom: 2rem;
    animation: pulse 2s infinite;
}

.splash-text {
    font-size: 1.5rem;
    color: var(--text-primary);
    text-align: center;
}


.container {
    display: flex;
    height: 100vh;
    transition: var(--transition);
    position: relative;
}


.app-nav {
    width: var(--nav-width);
    background-color: var(--primary-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-bottom: 20px;
    z-index: 150;
    position: relative;
}

.nav-items {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 9px;
    width: 100%;
    align-items: center;
    flex: 1;
}

.nav-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    position: relative;
}

.nav-btn:hover {
    color: var(--text-primary);
    background-color: var(--hover-color);
}

.nav-btn.active {
    color: white;
    background-color: var(--accent-color);
}


.sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    z-index: 100;
}


.app-header {
    height: var(--header-height);
    padding: 0 20px;
    display: flex;
    font-weight: bold;
    align-items: center;
    justify-content: space-between;
    background-color: var(--secondary-bg);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
    cursor: pointer;
    transition: var(--transition);
}

.logo:hover {
    transform: var(--scale-animation);
}

.menu-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-btn:hover {
    background-color: var(--hover-color);
}


.search-container {
    padding: 15px;
    border-bottom: none !important;
}

.search-box {
    display: flex;
    align-items: center;
    background-color: var(--secondary-bg);
    border-radius: var(--border-radius);
    padding: 8px 15px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.search-box:focus-within {
    box-shadow: 0 0 0 2px var(--accent-color);
}

.search-box i {
    color: var(--text-secondary);
}

.search-box input,
.search-box1 {
    background: none;
    border: none;
    color: var(--text-primary) !important;
    width: 100%;
    padding: 5px 10px;
    font-size: 0.9rem;
    outline: none;
}


.sidebar-actions {
    display: flex;
    gap: 10px;
    padding: 15px;
    border-bottom: none !important;
}

.sidebar-btn {
    flex: 1;
    padding: 10px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 500;
}

.sidebar-btn:hover {
    transform: var(--scale-animation);
}

.app-header .header-create-chat-btn {
    flex: none !important;
    width: auto !important;
    padding: 6px 12px !important;
    font-size: 0.85rem !important;
    border-radius: 20px !important;
    background: var(--accent-color) !important;
    color: white !important;
    font-weight: 500 !important;
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
    border: none !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
}

.app-header .header-create-chat-btn:hover {
    transform: var(--scale-animation) !important;
}


.chats-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px 0;
}

.chat-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;

    cursor: pointer;
    transition: var(--transition);
    animation: slideIn 0.3s ease backwards;
}

.chat-item:hover {
    background-color: var(--hover-color);
}

.chat-item.active {
    background-color: var(--incoming-bg);
    border-left: 3px solid var(--accent-color);
}

.chat-avatar {
    width: 50px;
    height: 50px;
    min-width: 50px;
    border-radius: 50%;
    background-color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-right: 15px;
    color: white;
    position: relative;
}

.chat-avatar.online::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 12px;
    height: 12px;
}

.nav-btn.active {
    color: white;
    background-color: var(--accent-color);
}


.sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    z-index: 100;
}


.app-header {
    height: var(--header-height);
    padding: 0 20px;
    display: flex;
    font-weight: bold;
    align-items: center;
    justify-content: space-between;
    background-color: var(--secondary-bg);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
    cursor: pointer;
    transition: var(--transition);
}

.logo:hover {
    transform: var(--scale-animation);
}

.menu-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-btn:hover {
    background-color: var(--hover-color);
}


.search-container {
    padding: 15px;
    border-bottom: none !important;
}

.search-box {
    display: flex;
    align-items: center;
    background-color: var(--secondary-bg);
    border-radius: var(--border-radius);
    padding: 8px 15px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.search-box:focus-within {
    box-shadow: 0 0 0 2px var(--accent-color);
}

.search-box i {
    color: var(--text-secondary);
}

.search-box input,
.search-box1 {
    background: none;
    border: none;
    color: var(--text-primary) !important;
    width: 100%;
    padding: 5px 10px;
    font-size: 0.9rem;
    outline: none;
}


.sidebar-actions {
    display: flex;
    gap: 10px;
    padding: 15px;
    border-bottom: none !important;
}

.sidebar-btn {
    flex: 1;
    padding: 10px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 500;
}

.sidebar-btn:hover {
    transform: var(--scale-animation);
}

.app-header .header-create-chat-btn {
    flex: none !important;
    width: auto !important;
    padding: 6px 12px !important;
    font-size: 0.85rem !important;
    border-radius: 20px !important;
    background: var(--accent-color) !important;
    color: white !important;
    font-weight: 500 !important;
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
    border: none !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
}

.app-header .header-create-chat-btn:hover {
    transform: var(--scale-animation) !important;
}


.chats-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px 0;
}

.chat-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;

    cursor: pointer;
    transition: var(--transition);
    animation: slideIn 0.3s ease backwards;
}

.chat-item:hover {
    background-color: var(--hover-color);
}

.chat-item.active {
    background-color: var(--incoming-bg);
    border-left: 3px solid var(--accent-color);
}

.chat-avatar {
    width: 50px;
    height: 50px;
    min-width: 50px;
    border-radius: 50%;
    background-color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-right: 15px;
    color: white;
    position: relative;
}

.chat-avatar.online::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 12px;
    height: 12px;
    background-color: var(--online-color);
    border-radius: 50%;
    border: 2px solid var(--primary-bg);
}

.sidebar .chat-avatar.online::after {
    border-color: var(--primary-bg);
}

.chat-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.chat-info {
    flex: 1;
    min-width: 0;
}

.chat-name {
    font-weight: bold;
    margin-bottom: 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.last-message {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}


.chat-header {
    height: var(--header-height);
    padding: 0 20px;
    display: flex;
    align-items: center;
    background-color: var(--secondary-bg) !important;
    margin: 15px;
    border-radius: var(--border-radius);
}

.back-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    margin-right: 15px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-btn:hover {
    background-color: var(--hover-color);
}

.chat-title {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.chat-actions {
    display: flex;
    gap: 10px;
    position: relative;
    margin-left: 10px;
}

.action-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover {
    background-color: var(--hover-color);
    color: var(--accent-color);
}


.chat-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--secondary-bg);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    width: 200px;
    overflow: hidden;
    z-index: 200;
    transform: translateY(10px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.chat-dropdown-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
}

.chat-dropdown-item {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: var(--transition);
}

.chat-dropdown-item:hover {
    background-color: var(--hover-color);
}

.chat-dropdown-divider {
    height: 1px;
    background-color: var(--border-color);
}


.group-members {
    display: flex;
    margin-top: 5px;
    gap: 5px;
}

.member-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--accent-color);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: white;
}

.member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.more-members {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: var(--text-secondary);
}


.messages-container {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
    background-color: var(--primary-bg) !important;
}

@keyframes messagePop {
    0% { opacity: 0; transform: scale(0.9) translateY(10px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

.message {
    max-width: 75%;
    padding: 12px 15px;
    border-radius: var(--border-radius);
    position: relative;
    animation: messagePop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.incoming {
    align-self: flex-start;
    background-color: var(--incoming-bg);
    border-top-left-radius: 5px;
    color: var(--text-primary);
}

.outgoing {
    align-self: flex-end;
    background-color: var(--outgoing-bg);
    color: var(--text-primary);
    border-top-right-radius: 5px;
}

.message-time {
    font-size: 0.7rem;
    text-align: right;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 5px;
}

.image-message {
    max-width: 300px;
    border-radius: var(--border-radius);
    overflow: hidden;
    padding: 0;
}

.image-message img {
    width: 100%;
    display: block;
}

.voice-message {
    display: flex;
    align-items: center;
    gap: 10px;
}

.voice-wave {
    display: flex;
    align-items: flex-end;
    gap: 3px;
    height: 25px;
}

.wave-bar {
    width: 3px;
    background-color: currentColor;
    border-radius: 2px;
    animation: wave 1.5s infinite ease-in-out;
}

.wave-bar:nth-child(1) {
    animation-delay: 0s;
    height: 8px;
}

.wave-bar:nth-child(2) {
    animation-delay: 0.2s;
    height: 15px;
}

.wave-bar:nth-child(3) {
    animation-delay: 0.4s;
    height: 20px;
}

.wave-bar:nth-child(4) {
    animation-delay: 0.6s;
    height: 15px;
}

.wave-bar:nth-child(5) {
    animation-delay: 0.8s;
    height: 8px;
}

.voice-play-btn {
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.voice-play-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.voice-duration {
    font-size: 0.9rem;
}


.message-input-container {
    height: var(--footer-height);
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    background-color: var(--secondary-bg) !important;
    margin: 15px;
    border-radius: 30px;
    border: none !important;
}

.attachment-btn,
.send-btn,
.voice-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.attachment-btn:hover,
.voice-btn:hover {
    background-color: var(--hover-color);
}

.send-btn {
    background-color: var(--accent-color);
    color: white;
}

.send-btn:hover {
    transform: var(--scale-animation);
}

.message-input {
    flex: 1;
    background-color: var(--primary-bg);
    border: none;
    border-radius: 20px;
    padding: 12px 20px;
    color: var(--text-primary);
    outline: none;
    transition: var(--transition);
}

.message-input:focus {
    box-shadow: 0 0 0 2px var(--accent-color);
}


.dropdown-menu {
    position: absolute;
    top: var(--header-height);
    left: 20px;
    background-color: var(--secondary-bg);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    width: 250px;
    overflow: hidden;
    z-index: 200;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.dropdown-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
}

.dropdown-item {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: var(--transition);
}

.dropdown-item:hover {
    background-color: var(--hover-color);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--border-color);
}


.page {
    flex: 1;
    background-color: var(--primary-bg) !important;
    padding: 20px;
    overflow-y: auto;
    display: none;
    z-index: 111111 !important;
}

@keyframes pageSlide {
    0% { opacity: 0; transform: translateX(20px); }
    100% { opacity: 1; transform: translateX(0); }
}

.page.active {
    display: block !important;
    animation: pageSlide 0.3s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}


.container:has(.page.active) .sidebar,
.container:has(.page.active) .main-content {
    display: none !important;
}

.page-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    background: var(--primary-bg) !important;
}

.page-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-left: 15px;
}

.settings-item {
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}


.checkbox-container {
    display: block;
    position: relative;
    padding-left: 35px;
    margin-bottom: 12px;
    cursor: pointer;
    font-size: 1rem;
    user-select: none;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 24px;
    width: 24px;
    background-color: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: var(--transition);
}

.checkbox-container:hover input~.checkmark {
    background-color: var(--hover-color);
}

.checkbox-container input:checked~.checkmark {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked~.checkmark:after {
    display: block;
}

.checkbox-container .checkmark:after {
    left: 8px;
    top: 4px;
    width: 6px;
    height: 12px;
    border: solid white;
    border-width: 0 3px 3px 0;
    transform: rotate(45deg);
}


.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--accent-color) !important;
}

input:checked+.slider:before {
    transform: translateX(26px);
}


.lang-switcher {
    display: flex;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-top: 10px;
}

.lang-btn {
    flex: 1;
    padding: 8px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.lang-btn.active {
    background-color: var(--accent-color);
    color: white;
}


.call-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 300;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.call-container.active {
    opacity: 1;
    pointer-events: all;
}

.call-window {
    background: linear-gradient(135deg, #1e1e1e, #121212);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 400px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.call-container.active .call-window {
    transform: scale(1);
}

.call-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background-color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin: 0 auto 20px;
    color: white;
    overflow: hidden;
}

.call-name {
    font-size: 1.8rem;
    margin-bottom: 30px;
    font-weight: bold;
}

.call-status {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 1.2rem;
}

.call-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.call-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.call-answer {
    background-color: #4CAF50;
    color: white;
}

.call-decline {
    background-color: #F44336;
    color: white;
}

.call-btn:hover {
    transform: var(--scale-animation);
}


.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 400;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background-color: var(--secondary-bg);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: bold;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background-color: var(--hover-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background-color: var(--primary-bg);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(255, 87, 34, 0.2);
}

.form-switch-link {
    margin-top: 18px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.4;
    text-align: center;
}

.form-switch-link a {
    color: var(--accent-light);
    font-weight: 600;
    text-decoration: none;
}

.form-switch-link a:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

.auth-avatar-container {
    display: flex;
    justify-content: center;
}

.auth-avatar-preview {
    width: 96px;
    height: 96px;
    border: 1px dashed var(--border-color);
    border-radius: 50%;
    background-color: var(--primary-bg);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    overflow: hidden;
    transition: var(--transition);
}

.auth-avatar-preview:hover {
    border-color: var(--accent-light);
    color: var(--text-primary);
    background-color: var(--hover-color);
}

.auth-avatar-preview i {
    font-size: 1.4rem;
}

.auth-avatar-preview span {
    font-size: 0.82rem;
    font-weight: 600;
}

.auth-avatar-preview img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.select-input {
    width: 100%;
    padding: 12px 15px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background-color: var(--primary-bg);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
}

.select-input:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(255, 87, 34, 0.2);
}

.contact-list {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 10px;
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    padding: 10px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.contact-item:hover {
    background-color: var(--hover-color);
}

.contact-item.selected {
    background-color: rgba(255, 87, 34, 0.1);
}

.contact-checkbox {
    margin-right: 10px;
}

.modal-actions {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.modal-btn {
    flex: 1;
    padding: 12px;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.modal-btn.primary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: white;
}

.modal-btn.secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.modal-btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}


.btn {
    padding: 8px 16px;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: white;
}

.btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}


.recording-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 15px;
    background-color: var(--accent-light);
    border-radius: 20px;
    color: white;
    margin-right: 10px;
}

.recording-dot {
    width: 12px;
    height: 12px;
    background-color: red;
    border-radius: 50%;
    animation: pulse 1s infinite;
}

.recording-timer {
    font-size: 0.9rem;
}

.voice-message-container {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.voice-message-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}


.profile-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.profile-avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background-color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    overflow: hidden;
    margin-bottom: 20px;
    position: relative;
}

.profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-edit {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background-color: var(--secondary-bg);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.profile-name {
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 10px;
}

.profile-status {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.profile-info {
    width: 100%;
    max-width: 500px;
    background-color: var(--secondary-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 20px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.info-label {
    color: var(--text-secondary);
}

.info-value {
    font-weight: 500;
}

.profile-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.profile-btn {
    padding: 10px 20px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.profile-btn:hover {
    background-color: var(--accent-light);
}


.edit-form {
    width: 100%;
    max-width: 500px;
    background-color: var(--secondary-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 20px;
    display: none;
}

.edit-form.active {
    display: block;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.form-btn {
    flex: 1;
    padding: 10px;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.save-btn {
    background-color: var(--accent-color);
    color: white;
}

.cancel-btn {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.form-btn:hover {
    opacity: 0.9;
}


.profile-navigation {
    display: flex;
    justify-content: space-around;
    width: 100%;
    max-width: 500px;
    margin-bottom: 20px;
    background-color: var(--secondary-bg);
    border-radius: var(--border-radius);
    padding: 10px;
}

.profile-nav-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    padding: 10px;
    cursor: pointer;
    transition: var(--transition);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.profile-nav-btn:hover {
    background-color: var(--hover-color);
}

.profile-nav-btn.active {
    color: var(--accent-color);
}


.contact-profile {
    padding: 20px;
}


.group-info-modal {
    max-height: 80vh;
    overflow-y: auto;
}

.group-members-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.group-member {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px;
    border-radius: var(--border-radius);
    background-color: var(--primary-bg);
    transition: var(--transition);
}

.group-member:hover {
    background-color: var(--hover-color);
}

.group-member-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-bottom: 10px;
    overflow: hidden;
}

.group-member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


.group-avatar-container {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    cursor: pointer;
}

.group-avatar-preview {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    overflow: hidden;
}

.group-avatar-edit {
    position: absolute;
    bottom: 5px;
    right: 5px;
    background-color: var(--secondary-bg);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}


@media (max-width: 768px) {


    .sidebar {
        position: absolute;
        left: -100%;
        height: 100%;
        width: 85%;
        max-width: 300px;
        z-index: 150;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.2);
    }


    .sidebar.active {
        left: 0;
    }


    .back-btn {
        display: flex;
    }


    .chat-avatar {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }


    .message {
        max-width: 85%;
    }


    .dropdown-menu {
        width: calc(100% - 40px);
        left: 20px;
        right: 20px;
        top: var(--header-height);
    }


    .chat-dropdown-menu {
        width: 180px;
        right: 10px;
    }


    .profile-navigation {
        flex-wrap: wrap;
    }

    .profile-nav-btn {
        flex: 1 0 45%;
        margin: 5px;
    }


    .call-window {
        width: 95%;
        padding: 20px;
    }


    .modal-content {
        width: 95%;
        padding: 20px;
    }


    .chat-time {
        display: none;
    }


    .group-members {
        flex-wrap: wrap;
    }
}

body {
    scrollbar-color: var(--accent-color) !important;
}

.call-actions {
    margin-left: 10px;
}

.message-contact-btn {
    margin-top: 2px;
}

.app-header {
    background-color: var(--primary-bg);
}

.settings-lang-switcher {
    display: flex;
    background-color: var(--secondary-bg);
    border-radius: var(--border-radius);
    padding: 2px;
    border: 1px solid var(--border-color);
}

.settings-lang-switcher .lang-btn {
    padding: 4px 10px;
    font-size: 0.85rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.settings-lang-switcher .lang-btn.active {
    background-color: var(--accent-color);
    color: white;
}

.profile-btn.logout-btn-styled {
    background-color: #ef4444; /* Destructive red color */
}

.profile-btn.logout-btn-styled:hover {
    background-color: #dc2626;
}