.mobile-layout {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-bottom: 1px solid var(--glass-border);
    z-index: 100;
}

.mobile-header-title {
    font-size: 18px;
    font-weight: 600;
}

.mobile-header-actions {
    display: flex;
    gap: 8px;
}

.mobile-header-actions .btn-icon {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    transition: var(--transition);
}

.mobile-header-actions .btn-icon:hover {
    background: rgba(0, 153, 255, 0.1);
}

.mobile-content {
    flex: 1;
    overflow-y: auto;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
}

.mobile-tab-content {
    display: none;
    height: 100%;
}

.mobile-tab-content.active {
    display: block;
}

.mobile-chat-list {
    padding: 8px;
}

.mobile-chat-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-radius: var(--radius-lg);
    margin-bottom: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.mobile-chat-item:hover {
    background: rgba(255, 255, 255, 0.7);
}

.mobile-chat-item:active {
    transform: scale(0.98);
}

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

.mobile-chat-item-name {
    font-weight: 500;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.mobile-chat-item-name .name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mobile-chat-item-time {
    font-size: 12px;
    color: var(--text-tertiary);
}

.mobile-chat-item-preview {
    font-size: 13px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mobile-chat-item-unread {
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 10px;
    background: var(--error-color);
    color: white;
    font-size: 11px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-chat-window {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    z-index: 1000;
}

.mobile-chat-window-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-bottom: 1px solid var(--glass-border);
}

.mobile-chat-window-back {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-chat-window-title {
    flex: 1;
    font-size: 16px;
    font-weight: 600;
}

.mobile-chat-window-actions {
    display: flex;
    gap: 4px;
}

.mobile-chat-window-actions .btn-icon {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px 16px;
}

.mobile-message {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    animation: slideInLeft 0.3s ease-in-out;
}

.mobile-message.self {
    flex-direction: row-reverse;
}

.mobile-message-avatar {
    flex-shrink: 0;
}

.mobile-message-content {
    max-width: 70%;
}

.mobile-message-name {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.mobile-message.self .mobile-message-name {
    text-align: right;
}

.mobile-message-bubble {
    padding: 10px 14px;
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    word-wrap: break-word;
}

.mobile-message.self .mobile-message-bubble {
    background: var(--primary-color);
    color: white;
}

.mobile-message-bubble-image {
    max-width: 150px;
    max-height: 150px;
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    cursor: pointer;
    object-fit: cover;
}

.mobile-message-bubble-video {
    max-width: 200px;
    max-height: 150px;
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    cursor: pointer;
    object-fit: cover;
}

.mobile-message-bubble-media {
    border: none !important;
    background: transparent !important;
    padding: 0 !important;
    box-shadow: none !important;
}

.mobile-message-bubble-file {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: rgba(0, 153, 255, 0.1);
    border-radius: var(--radius-md);
    cursor: pointer;
}

.mobile-message-bubble-file-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    border-radius: var(--radius-sm);
    color: white;
}

.mobile-message-bubble-file-info {
    flex: 1;
}

.mobile-message-bubble-file-name {
    font-weight: 500;
    font-size: 13px;
    margin-bottom: 2px;
}

.mobile-message-bubble-file-size {
    font-size: 11px;
    color: var(--text-tertiary);
}

.mobile-message-bubble-text {
    line-height: 1.5;
    font-size: 14px;
}

.mobile-message-time {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: 4px;
}

.mobile-message.self .mobile-message-time {
    text-align: right;
}

.mobile-chat-input {
    padding: 12px 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-top: 1px solid var(--glass-border);
}

.mobile-chat-input-toolbar {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.mobile-chat-input-toolbar .btn-icon {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 6px;
    color: var(--text-secondary);
}

.mobile-chat-input-textarea {
    width: 100%;
    min-height: 60px;
    max-height: 120px;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    resize: none;
    font-size: 14px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    color: var(--text-primary);
}

.mobile-chat-input-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.mobile-chat-input-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 8px;
}

.mobile-chat-attachment-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

.mobile-chat-attachment-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    max-width: 180px;
}

.mobile-chat-attachment-item.mobile-attachment-image,
.mobile-chat-attachment-item.mobile-attachment-video {
    padding: 3px;
    border-radius: var(--radius-sm);
}

.mobile-chat-attachment-item img,
.mobile-chat-attachment-item video {
    max-width: 50px;
    max-height: 50px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.mobile-chat-attachment-item .mobile-attachment-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.mobile-chat-attachment-item .mobile-attachment-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.mobile-chat-attachment-item .mobile-attachment-name {
    font-size: 11px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mobile-chat-attachment-item .mobile-attachment-size {
    font-size: 9px;
    color: var(--text-tertiary);
}

.mobile-chat-attachment-item .mobile-attachment-remove {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 14px;
    height: 14px;
    background: var(--danger-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    line-height: 1;
}

.mobile-contacts-list {
    padding: 8px;
}

.mobile-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-radius: var(--radius-lg);
    margin-bottom: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.mobile-contact-item:active {
    transform: scale(0.98);
}

.mobile-contact-item-info {
    flex: 1;
}

.mobile-contact-item-name {
    font-weight: 500;
    margin-bottom: 4px;
}

.mobile-contact-item-signature {
    font-size: 12px;
    color: var(--text-tertiary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mobile-profile {
    padding: 16px;
}

.mobile-profile-header {
    text-align: center;
    padding: 24px 16px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-radius: var(--radius-xl);
    margin-bottom: 16px;
}

.mobile-profile-avatar {
    margin-bottom: 16px;
}

.mobile-profile-name {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.mobile-profile-id {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: 12px;
}

.mobile-profile-signature {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.mobile-profile-qrcode {
    display: inline-block;
    padding: 12px;
    background: white;
    border-radius: var(--radius-md);
}

.mobile-profile-menu {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.mobile-profile-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid var(--glass-border);
}

.mobile-profile-menu-item:last-child {
    border-bottom: none;
}

.mobile-profile-menu-item:active {
    background: rgba(0, 153, 255, 0.05);
}

.mobile-profile-menu-item .icon {
    color: var(--text-secondary);
}

.mobile-profile-menu-item-label {
    flex: 1;
}

.mobile-profile-menu-item-arrow {
    color: var(--text-tertiary);
}

.mobile-toolbar {
    display: flex;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-top: 1px solid var(--glass-border);
    padding: 8px 0;
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
}

.mobile-toolbar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 0;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
    position: relative;
}

.mobile-toolbar-item:active {
    transform: scale(0.95);
}

.mobile-toolbar-item.active {
    color: var(--primary-color);
}

.mobile-toolbar-item .icon {
    width: 24px;
    height: 24px;
}

.mobile-toolbar-item-label {
    font-size: 11px;
}

.mobile-toolbar-badge {
    position: absolute;
    top: 4px;
    right: 20%;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    border-radius: 8px;
    background: var(--error-color);
    color: white;
    font-size: 10px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-search {
    padding: 12px 16px;
}

.mobile-search input {
    padding-left: 40px;
}

.mobile-search .icon {
    position: absolute;
    left: 28px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
}

.mobile-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-tertiary);
    text-align: center;
}

.mobile-empty-state .icon {
    width: 80px;
    height: 80px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.mobile-empty-state-text {
    font-size: 14px;
}

.mobile-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease-in-out;
}

.mobile-modal-content {
    width: 100%;
    max-height: 80vh;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-top-left-radius: var(--radius-xl);
    border-top-right-radius: var(--radius-xl);
    padding: 20px;
    animation: slideUp 0.3s ease-in-out;
    overflow-y: auto;
}

.mobile-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.mobile-modal-title {
    font-size: 18px;
    font-weight: 600;
}

.mobile-modal-close {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-action-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-top-left-radius: var(--radius-xl);
    border-top-right-radius: var(--radius-xl);
    padding: 12px;
    z-index: 1000;
    animation: slideUp 0.3s ease-in-out;
}

.mobile-action-sheet-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.mobile-action-sheet-item:active {
    background: rgba(255, 255, 255, 0.7);
}

.mobile-action-sheet-item:last-child {
    margin-bottom: 0;
}

.mobile-action-sheet-item-danger {
    color: var(--error-color);
}

.mobile-action-sheet-cancel {
    margin-top: 8px;
    background: rgba(255, 255, 255, 0.8);
}

.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 999;
    animation: fadeIn 0.2s ease-in-out;
}