/**
 * Microsoft Teams-inspired SMS Chat Application Styles
 */

/* Teams Color Palette */
:root {
    --teams-purple: #6264A7;
    --teams-purple-hover: #464775;
    --teams-purple-light: #E1E1F0;
    --teams-sidebar: #F3F2F1;
    --teams-sidebar-hover: #EDEBE9;
    --teams-sidebar-selected: #DEECF9;
    --teams-sidebar-border: #E1DFDD;
    --teams-text-primary: #242424;
    --teams-text-secondary: #616161;
    --teams-text-muted: #8A8886;
    --teams-white: #FFFFFF;
    --teams-gray-light: #F8F8F8;
    --teams-gray-medium: #EDEBE9;
    --teams-gray-dark: #605E5C;
    --teams-blue: #0078D4;
    --teams-blue-hover: #106EBE;
    --teams-green: #13A10E;
    --teams-red: #D13438;
    --teams-yellow: #FFB900;
    --teams-border: #E1DFDD;
    --teams-shadow: 0 2px 4px rgba(0,0,0,0.1);
    --teams-shadow-hover: 0 4px 8px rgba(0,0,0,0.15);
}

/* Teams Dark Mode Color Palette */
[data-theme="dark"] {
    --teams-purple: #6264A7;
    --teams-purple-hover: #7B7DB8;
    --teams-purple-light: #464775;
    --teams-sidebar: #201F1E;
    --teams-sidebar-hover: #292827;
    --teams-sidebar-selected: #1F1F1F;
    --teams-sidebar-border: #323130;
    --teams-text-primary: #FFFFFF;
    --teams-text-secondary: #D2D0CE;
    --teams-text-muted: #A19F9D;
    --teams-white: #1C1C1C;
    --teams-gray-light: #252423;
    --teams-gray-medium: #323130;
    --teams-gray-dark: #484644;
    --teams-blue: #4F9CDB;
    --teams-blue-hover: #6BB0E8;
    --teams-green: #54B399;
    --teams-red: #F87979;
    --teams-yellow: #FFCC4D;
    --teams-border: #323130;
    --teams-shadow: 0 2px 8px rgba(0,0,0,0.3);
    --teams-shadow-hover: 0 4px 16px rgba(0,0,0,0.4);
}

/* Global Styles */
* {
    box-sizing: border-box;
}

/* Smooth theme transitions */
*,
*::before,
*::after {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

html {
    height: 100%;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--teams-white);
    color: var(--teams-text-primary);
    margin: 0;
    padding: 0;
    line-height: 1.4;
    font-size: 14px;
    height: 100%;
    overflow: hidden; /* Prevent page scrolling */
}

.h-100 {
    height: 100vh !important;
    max-height: 100vh;
}

/* Main Layout */
.container-fluid {
    padding: 0;
}

/* Header/Navigation */
.navbar {
    background-color: var(--teams-purple) !important;
    border-bottom: 1px solid var(--teams-purple-hover);
    padding: 0;
    min-height: 48px;
    box-shadow: var(--teams-shadow);
}

.navbar-brand {
    color: white !important;
    font-weight: 600;
    font-size: 16px;
    padding: 12px 16px;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    font-size: 14px;
    padding: 12px 16px;
    transition: all 0.2s ease;
}

.navbar-nav .nav-link:hover {
    color: white !important;
    background-color: rgba(255, 255, 255, 0.1);
}

/* Main Layout */
.container-fluid {
    padding: 0;
}

.row {
    margin: 0;
}

/* Sidebar */
.sidebar,
.col-md-4.col-lg-3 {
    background-color: var(--teams-sidebar);
    border-right: 1px solid var(--teams-sidebar-border);
    height: calc(100vh - 50px);
    max-height: calc(100vh - 50px);
    display: flex;
    flex-direction: column;
    padding: 0;
}

.sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--teams-border);
    background-color: var(--teams-white);
}

/* Dark mode sidebar header fix */
[data-theme="dark"] .sidebar-header {
    background-color: var(--teams-sidebar);
    border-color: var(--teams-border);
}

.sidebar-header .btn-primary,
#newConversationBtn {
    background-color: var(--teams-purple);
    border-color: var(--teams-purple);
    font-weight: 600;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.sidebar-header .btn-primary:hover,
#newConversationBtn:hover {
    background-color: var(--teams-purple-hover);
    border-color: var(--teams-purple-hover);
}

/* View Toggle */
.view-toggle,
.btn-group {
    margin-top: 12px;
}

.btn-group {
    width: 100%;
}

.btn-group .btn {
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 4px;
    border: 1px solid var(--teams-border);
    background-color: var(--teams-white);
    color: var(--teams-text-secondary);
    transition: all 0.2s ease;
}

.btn-group .btn:first-child {
    border-right: none;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.btn-group .btn:last-child {
    border-left: none;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.btn-check:checked + .btn,
.btn-group .btn.active {
    background-color: var(--teams-purple);
    color: white;
    border-color: var(--teams-purple);
}
/* Conversations List */
.conversations-container,
#conversationsList {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px 0;
    background-color: var(--teams-sidebar);
}

.conversation-item {
    padding: 12px 16px;
    cursor: pointer;
    border-bottom: 1px solid transparent;
    margin: 0 8px 2px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
    position: relative;
}

.conversation-item.pinned::before {
    content: '\f08d'; /* fa-thumbtack */
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    top: 6px;
    right: 8px;
    font-size: 11px;
    color: var(--teams-blue);
    opacity: 0.8;
}

.conversation-item.pin-animating {
    transition: transform 0.35s ease, opacity 0.35s ease;
}

.conversation-item:hover {
    background-color: var(--teams-sidebar-hover);
}

.conversation-item.active,
.conversation-item.selected {
    background-color: var(--teams-sidebar-selected);
    border-color: var(--teams-blue);
    border-left: 4px solid var(--teams-blue);
    margin-left: 4px;
    color: var(--teams-text-primary);
}

.conversation-item.active .text-muted,
.conversation-item.selected .text-muted {
    color: var(--teams-text-muted) !important;
}

.conversation-item.conversation-closed {
    opacity: 0.7;
}

/* Real-time highlight for newly updated/created conversations */
.conversation-item.rt-highlight {
    animation: rtGlow 2.2s ease-out forwards;
    box-shadow: 0 0 0 0 rgba(0,123,255,0.6);
}

@keyframes rtGlow {
    0% { box-shadow: 0 0 0 0 rgba(0,123,255,0.9); background-color: rgba(0,123,255,0.12); }
    40% { box-shadow: 0 0 0 6px rgba(0,123,255,0.25); }
    70% { box-shadow: 0 0 0 3px rgba(0,123,255,0.15); }
    100% { box-shadow: 0 0 0 0 rgba(0,123,255,0); background-color: transparent; }
}

/* Unread badge styling (positioned near title) */
.conversation-item .unread-badge {
    font-size: 10px;
    line-height: 1;
    padding: 3px 6px;
    vertical-align: middle;
}

/* Allow hiding unread badges via setting */
body.hide-unread-badges .unread-badge { display: none !important; }

.conversation-contact-name,
.fw-semibold {
    font-weight: 600;
    font-size: 14px;
    color: var(--teams-text-primary);
    margin-bottom: 2px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    overflow: hidden;
}

.conversation-contact-name > span:first-child,
.fw-semibold > span:first-child {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}

.conversation-phone {
    font-size: 12px;
    color: var(--teams-text-muted);
    margin-bottom: 4px;
}

.conversation-preview {
    font-size: 12px;
    color: var(--teams-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
    margin-bottom: 2px;
}

.conversation-time {
    font-size: 11px;
    color: var(--teams-text-muted);
}

.conversation-id {
    font-size: 10px;
    background-color: var(--teams-gray-medium);
    color: var(--teams-text-secondary);
    padding: 2px 6px;
    border-radius: 12px;
    border: none;
}

.conversation-status {
    font-size: 11px;
    font-weight: 600;
}

.failed-messages,
.text-danger {
    color: var(--teams-red) !important;
    font-size: 11px;
}

/* Chat Area */
.chat-container,
.col-md-8.col-lg-9 {
    background-color: var(--teams-white);
    height: calc(100vh - 50px); /* Slightly less height to ensure input fits */
    max-height: calc(100vh - 50px);
    display: flex;
    flex-direction: column;
    overflow: hidden; /* Prevent chat area from scrolling */
}

/* Chat Header */
.chat-header,
#chatHeader {
    background-color: var(--teams-white);
    border-bottom: 1px solid var(--teams-border);
    padding: 16px 20px;
    min-height: 64px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-shrink: 0; /* Prevent header from shrinking */
    gap: 12px;
}

/* Dark mode chat header fix */
[data-theme="dark"] .chat-header,
[data-theme="dark"] #chatHeader {
    background-color: var(--teams-sidebar);
    border-color: var(--teams-border);
}

.chat-header h5,
#chatRecipient {
    font-size: 18px;
    font-weight: 600;
    color: var(--teams-text-primary);
    margin: 0;
    word-wrap: break-word;
    word-break: break-word;
    hyphens: auto;
    line-height: 1.3;
    max-width: 100%;
}

.chat-phone,
#chatPhone {
    font-size: 12px;
    color: var(--teams-text-muted);
    margin-top: 2px;
}

/* Contact Name Editing */
.contact-name-container {
    position: relative;
    flex: 1;
    min-width: 0; /* Allow shrinking */
    max-width: 100%;
}

.contact-name-edit {
    font-size: 18px;
    font-weight: 600;
    border: 1px solid var(--teams-blue);
    border-radius: 4px;
    padding: 2px 8px;
    min-width: 150px;
    max-width: 100%;
    width: 100%;
}

.contact-name-edit:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.2);
}

.contact-edit-actions {
    display: flex;
    align-items: center;
}

#editContactBtn {
    color: var(--teams-text-muted);
    border: none;
    background: transparent;
    padding: 4px 8px;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

#editContactBtn:hover {
    opacity: 1;
    color: var(--teams-text-secondary);
}

#saveContactBtn {
    background-color: var(--teams-green);
    border-color: var(--teams-green);
    color: white;
    padding: 2px 8px;
}

#cancelContactBtn {
    background-color: var(--teams-gray-medium);
    border-color: var(--teams-gray-medium);
    color: var(--teams-text-primary);
    padding: 2px 8px;
}
/* Messages Area */
.messages-container,
#messagesArea {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px 20px;
    background-color: var(--teams-gray-light);
    display: flex;
    flex-direction: column;
    min-height: 0; /* Allow flexbox to properly constrain this area */
}

.message {
    max-width: 70%;
    margin-bottom: 12px;
    display: flex;
    flex-direction: column;
    animation: messageSlideIn 0.3s ease;
}

.message.outbound {
    align-self: flex-end;
    align-items: flex-end;
}

.message.inbound {
    align-self: flex-start;
    align-items: flex-start;
}

.message-bubble {
    padding: 10px 14px;
    border-radius: 8px;
    word-wrap: break-word;
    position: relative;
    box-shadow: var(--teams-shadow);
}

.message.outbound .message-bubble {
    background-color: var(--teams-purple);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.inbound .message-bubble {
    background-color: var(--teams-white);
    color: var(--teams-text-primary);
    border: 1px solid var(--teams-border);
    border-bottom-left-radius: 4px;
}

.message-content {
    font-size: 14px;
    line-height: 1.4;
    margin: 0;
}

.message-time {
    font-size: 11px;
    opacity: 0.7;
    margin-top: 6px;
    align-self: flex-end;
}

.message.inbound .message-time {
    color: var(--teams-text-muted);
}

.message.outbound .message-time {
    color: rgba(255, 255, 255, 0.8);
}

/* Message Sender Display */
.message-sender {
    font-size: 11px;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 4px !important;
}

.message.outbound .message-sender {
    color: rgba(255, 255, 255, 0.9);
}

.message.inbound .message-sender {
    color: var(--teams-text-muted);
}

/* System Messages */
.message.system {
    align-self: center;
    max-width: 80%;
}

.message.system .message-bubble {
    background-color: var(--teams-yellow);
    color: var(--teams-text-primary);
    border-radius: 16px;
    text-align: center;
    font-size: 13px;
    padding: 8px 16px;
    border: 1px solid rgba(139, 90, 0, 0.2);
}

/* Dark mode system message - elegant design */
[data-theme="dark"] .message.system .message-bubble {
    background: linear-gradient(135deg, #3A3A3A 0%, #2A2A2A 100%);
    color: var(--teams-text-secondary);
    border: 1px solid var(--teams-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Failed Messages */
.message.failed .message-bubble {
    background-color: rgba(209, 52, 56, 0.1);
    border: 1px solid var(--teams-red);
    color: var(--teams-red);
}

.message-status {
    font-size: 11px;
    margin-top: 4px;
    opacity: 0.8;
}

.retry-btn,
.retry-button {
    background-color: var(--teams-red);
    border: none;
    color: white;
    padding: 4px 8px;
    font-size: 11px;
    border-radius: 4px;
    margin-top: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.retry-btn:hover,
.retry-button:hover {
    background-color: #B71C1C;
}

/* Message Input */
.message-input-container,
#messageInput {
    background-color: var(--teams-white);
    border-top: 1px solid var(--teams-border);
    padding: 16px 20px;
    flex-shrink: 0; /* Prevent input from shrinking */
    position: relative; /* Ensure it stays in position */
    margin-bottom: 2px; /* Small margin to prevent cutoff */
}

/* Dark mode message input fix */
[data-theme="dark"] .message-input-container,
[data-theme="dark"] #messageInput {
    background-color: var(--teams-sidebar);
    border-color: var(--teams-border);
}

.message-input-group,
.input-group {
    display: flex;
    align-items: flex-end;
    background-color: var(--teams-gray-light);
    border: 1px solid var(--teams-border);
    border-radius: 8px;
    padding: 8px;
    transition: all 0.2s ease;
}

.message-input-group:focus-within,
.input-group:focus-within {
    border-color: var(--teams-blue);
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.2);
}

.message-input,
#messageText {
    flex: 1;
    border: none;
    background: transparent;
    resize: none;
    outline: none;
    font-size: 14px;
    line-height: 1.4;
    padding: 6px 8px;
    max-height: 120px;
    min-height: 20px;
    font-family: inherit;
    color: var(--teams-text-primary);
}

.message-input::placeholder,
#messageText::placeholder {
    color: var(--teams-text-muted);
}

.input-btn,
#attachBtn,
#sendBtn {
    background: transparent;
    border: none;
    color: var(--teams-text-secondary);
    padding: 6px 8px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 32px;
}

.input-btn:hover,
#attachBtn:hover {
    background-color: var(--teams-sidebar-hover);
    color: var(--teams-text-primary);
}

.input-btn.send-btn,
#sendBtn {
    color: var(--teams-purple);
}

.input-btn.send-btn:hover,
#sendBtn:hover {
    background-color: var(--teams-purple-light);
}

.input-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Chat Header Buttons */
.chat-header .btn-group .btn,
#chatHeader .btn {
    background-color: transparent;
    border: 1px solid var(--teams-border);
    color: var(--teams-text-secondary);
    padding: 6px 10px;
    font-size: 12px;
    border-radius: 4px;
    margin-left: 4px;
    transition: all 0.2s ease;
}

.chat-header .btn-group .btn:hover,
#chatHeader .btn:hover {
    background-color: var(--teams-gray-medium);
    color: var(--teams-text-primary);
    box-shadow: var(--teams-shadow);
}

.chat-header .btn-group .btn:first-child,
#chatHeader .btn:first-child {
    margin-left: 0;
}

/* Attachment Preview */
.attachment-preview,
#attachmentPreview {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--teams-border);
}

.attachment-item,
.upload-item {
    display: flex;
    align-items: center;
    background-color: var(--teams-gray-medium);
    border: 1px solid var(--teams-border);
    border-radius: 4px;
    padding: 6px 8px;
    font-size: 12px;
    color: var(--teams-text-secondary);
}

.attachment-item .remove-btn,
.upload-item .btn-close {
    background: transparent;
    border: none;
    color: var(--teams-red);
    margin-left: 6px;
    cursor: pointer;
    font-size: 14px;
    padding: 0;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.attachment-item .remove-btn:hover,
.upload-item .btn-close:hover {
    background-color: var(--teams-red);
    color: white;
}

/* Modals */
.modal-content {
    border: none;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.modal-header {
    background-color: var(--teams-gray-light);
    border-bottom: 1px solid var(--teams-border);
    padding: 16px 20px;
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--teams-text-primary);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    background-color: var(--teams-gray-light);
    border-top: 1px solid var(--teams-border);
    padding: 12px 20px;
}

.modal .btn {
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.2s ease;
}

.modal .btn-primary {
    background-color: var(--teams-purple);
    border-color: var(--teams-purple);
}

.modal .btn-primary:hover {
    background-color: var(--teams-purple-hover);
    border-color: var(--teams-purple-hover);
}

.modal .btn-secondary {
    background-color: var(--teams-gray-medium);
    border-color: var(--teams-gray-medium);
    color: var(--teams-text-primary);
}

.modal .btn-secondary:hover {
    background-color: var(--teams-gray-dark);
    border-color: var(--teams-gray-dark);
    color: white;
}

/* Form Controls */
.form-label {
    font-weight: 600;
    color: var(--teams-text-primary);
    font-size: 14px;
    margin-bottom: 4px;
}

.form-control {
    border: 1px solid var(--teams-border);
    border-radius: 4px;
    padding: 8px 12px;
    font-size: 14px;
    color: var(--teams-text-primary);
    background-color: var(--teams-white);
    transition: all 0.2s ease;
}

.form-control:focus {
    border-color: var(--teams-blue);
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.2);
    outline: none;
}

.form-text {
    font-size: 12px;
    color: var(--teams-text-muted);
    margin-top: 4px;
}

/* Alerts */
.alert {
    border-radius: 4px;
    padding: 12px 16px;
    margin-bottom: 16px;
    border: 1px solid transparent;
}

.alert-success {
    background-color: rgba(19, 161, 14, 0.1);
    border-color: var(--teams-green);
    color: var(--teams-green);
}

.alert-danger {
    background-color: rgba(209, 52, 56, 0.1);
    border-color: var(--teams-red);
    color: var(--teams-red);
}

.alert-warning {
    background-color: rgba(255, 185, 0, 0.1);
    border-color: var(--teams-yellow);
    color: #8B5A00;
}

/* Dark mode alert fixes */
[data-theme="dark"] .alert-success {
    background-color: var(--teams-green);
    color: white;
    border-color: var(--teams-green);
}

[data-theme="dark"] .alert-danger {
    background-color: var(--teams-red);
    color: white;
    border-color: var(--teams-red);
}

[data-theme="dark"] .alert-warning {
    background-color: var(--teams-yellow);
    color: var(--teams-text-primary);
    border-color: var(--teams-yellow);
}

/* Toast/Alert positioning */
.alert-container {
    position: fixed;
    top: 70px;
    right: 20px;
    z-index: 1060;
    max-width: 400px;
}

/* Dark mode toast background fix */
[data-theme="dark"] .alert-container .alert {
    box-shadow: var(--teams-shadow-hover);
}

/* Badges */
.badge {
    font-size: 10px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 12px;
}

.badge.bg-secondary {
    background-color: var(--teams-gray-medium) !important;
    color: var(--teams-text-secondary) !important;
}

.badge.bg-primary {
    background-color: var(--teams-purple) !important;
}

.badge.bg-success {
    background-color: var(--teams-green) !important;
}

.badge.bg-warning {
    background-color: var(--teams-yellow) !important;
    color: var(--teams-text-primary) !important;
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--teams-text-muted);
}

.empty-state .fa {
    font-size: 48px;
    margin-bottom: 16px;
    color: var(--teams-text-muted);
}

.empty-state h5 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--teams-text-secondary);
}

.empty-state p {
    font-size: 14px;
    margin-bottom: 0;
}

/* Animations */
@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.fade-in {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

#refreshBtn:hover i {
    animation: refreshSpin 0.5s linear;
}

/* Scrollbars */
.conversations-container::-webkit-scrollbar,
.messages-container::-webkit-scrollbar,
#conversationsList::-webkit-scrollbar,
#messagesArea::-webkit-scrollbar {
    width: 4px;
}

.conversations-container::-webkit-scrollbar-track,
.messages-container::-webkit-scrollbar-track,
#conversationsList::-webkit-scrollbar-track,
#messagesArea::-webkit-scrollbar-track {
    background: transparent;
}

.conversations-container::-webkit-scrollbar-thumb,
.messages-container::-webkit-scrollbar-thumb,
#conversationsList::-webkit-scrollbar-thumb,
#messagesArea::-webkit-scrollbar-thumb {
    background: var(--teams-gray-medium);
    border-radius: 4px;
}

.conversations-container::-webkit-scrollbar-thumb:hover,
.messages-container::-webkit-scrollbar-thumb:hover,
#conversationsList::-webkit-scrollbar-thumb:hover,
#messagesArea::-webkit-scrollbar-thumb:hover {
    background: var(--teams-gray-dark);
}

/* Dark theme specific adjustments */
[data-theme="dark"] .conversation-item.active,
[data-theme="dark"] .conversation-item.selected {
    background-color: var(--teams-purple);
    border-left: 4px solid var(--teams-blue);
    color: white;
}

[data-theme="dark"] .conversation-item.active .text-muted,
[data-theme="dark"] .conversation-item.selected .text-muted {
    color: rgba(255, 255, 255, 0.7) !important;
}

[data-theme="dark"] .message.outbound .message-bubble {
    background-color: var(--teams-purple);
    color: white;
}

[data-theme="dark"] .message.inbound .message-bubble {
    background-color: var(--teams-gray-dark);
    border-color: var(--teams-border);
    color: var(--teams-text-primary);
}

[data-theme="dark"] .message.outbound .message-sender {
    color: var(--teams-text-secondary);
}

[data-theme="dark"] .message.inbound .message-sender {
    color: var(--teams-text-secondary);
}

[data-theme="dark"] .badge.bg-secondary {
    background-color: var(--teams-gray-dark) !important;
    color: var(--teams-text-secondary) !important;
}

[data-theme="dark"] .navbar {
    background-color: #252423 !important;
}

[data-theme="dark"] .modal-content {
    background-color: var(--teams-white);
    color: var(--teams-text-primary);
}

[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer {
    background-color: var(--teams-gray-medium);
    border-color: var(--teams-border);
}

[data-theme="dark"] .form-control {
    background-color: var(--teams-gray-medium);
    border-color: var(--teams-border);
    color: var(--teams-text-primary);
}

[data-theme="dark"] .form-control::placeholder {
    color: var(--teams-text-muted);
}

[data-theme="dark"] .form-control:focus {
    background-color: var(--teams-gray-medium);
    border-color: var(--teams-blue);
}

/* Bootstrap overrides for dark mode */
[data-theme="dark"] .bg-light,
[data-theme="dark"] .bg-white {
    background-color: var(--teams-sidebar) !important;
}

[data-theme="dark"] .border-end {
    border-color: var(--teams-border) !important;
}

[data-theme="dark"] .border-bottom {
    border-color: var(--teams-border) !important;
}

[data-theme="dark"] .border-top {
    border-color: var(--teams-border) !important;
}

[data-theme="dark"] .text-muted {
    color: var(--teams-text-muted) !important;
}

/* Dropdown Menu Dark Theme */
[data-theme="dark"] .dropdown-menu {
    background-color: var(--teams-gray-medium);
    border-color: var(--teams-border);
}

[data-theme="dark"] .dropdown-item {
    color: var(--teams-text-primary);
}

[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item:focus {
    background-color: var(--teams-sidebar-hover);
    color: var(--teams-text-primary);
}

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.8);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-1px);
}

.theme-toggle:active {
    transform: translateY(0);
}

.theme-toggle i {
    font-size: 16px;
    transition: transform 0.3s ease;
}

.theme-toggle:hover i {
    transform: scale(1.1);
}

/* Theme toggle animation */
.theme-toggle .fa-sun,
.theme-toggle .fa-moon {
    animation: themeIconSpin 0.5s ease-in-out;
}

@keyframes themeIconSpin {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.2); }
    100% { transform: rotate(360deg) scale(1); }
}
@media (max-width: 768px) {
    .sidebar,
    .col-md-4.col-lg-3 {
        width: 100%;
        height: auto;
        max-height: 40vh;
        border-right: none;
        border-bottom: 1px solid var(--teams-border);
    }
    
    .chat-container,
    .col-md-8.col-lg-9 {
        height: 60vh;
    }
    
    .message {
        max-width: 85%;
    }
    
    .chat-header,
    #chatHeader {
        padding: 12px 16px;
        min-height: 56px;
        align-items: flex-start;
    }
    
    .chat-header h5,
    #chatRecipient {
        font-size: 16px;
        line-height: 1.4;
    }
    
    .contact-name-edit {
        font-size: 16px;
        min-width: 120px;
    }
    
    .messages-container,
    #messagesArea {
        padding: 12px 16px;
    }
    
    .message-input-container,
    #messageInput {
        padding: 12px 16px;
    }
}

/* Utility classes */
.text-break {
    word-break: break-word;
}

.cursor-pointer {
    cursor: pointer;
}

.text-truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Toast/Alert animations */
.alert.fade-out {
    opacity: 0 !important;
    transform: translateX(100%) !important;
    transition: all 0.3s ease-out !important;
}

.alert.position-fixed {
    transition: all 0.3s ease-in-out;
}

/* Admin Menu Styles */
.navbar .dropdown-menu .dropdown-header {
    color: var(--teams-blue);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.navbar .dropdown-menu .dropdown-item.text-danger:hover {
    background-color: rgba(220, 53, 69, 0.1);
    color: #dc3545;
}

/* Admin Modal Enhancements */
.modal-header.bg-danger,
.modal-header.bg-info,
.modal-header.bg-primary {
    border-bottom: none;
}

.modal-header.bg-danger .btn-close-white,
.modal-header.bg-info .btn-close-white,
.modal-header.bg-primary .btn-close-white {
    filter: brightness(0) invert(1);
}

/* Admin Statistics Cards */
.card.bg-primary,
.card.bg-info,
.card.bg-success,
.card.bg-warning,
.card.bg-secondary {
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.card.bg-warning {
    color: #000 !important;
}

.card.bg-warning .card-title,
.card.bg-warning .card-text {
    color: #000 !important;
}

/* Progress bar styling for admin operations */
.progress-bar-animated.bg-danger {
    background-color: #dc3545 !important;
}

/* Admin confirmation text styling */
#deleteAllConfirmText {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    letter-spacing: 1px;
}

/* Dark mode admin adjustments */
[data-theme="dark"] .modal-content {
    background-color: var(--teams-sidebar);
    border-color: var(--teams-border);
}

[data-theme="dark"] .modal-header {
    border-color: var(--teams-border);
}

[data-theme="dark"] .modal-footer {
    border-color: var(--teams-border);
}

[data-theme="dark"] .card {
    background-color: var(--teams-sidebar);
    border-color: var(--teams-border);
}

/* Enhanced Dark Mode Support for Contact Management */
[data-theme="dark"] .contact-suggestion {
    background-color: var(--teams-sidebar);
    color: var(--teams-text-primary);
}

[data-theme="dark"] .contact-suggestion:hover {
    background-color: var(--teams-sidebar-hover);
}

[data-theme="dark"] .form-text {
    color: var(--teams-text-muted);
}

[data-theme="dark"] .text-muted {
    color: var(--teams-text-muted) !important;
}

[data-theme="dark"] .alert-info {
    background-color: var(--teams-gray-medium);
    border-color: var(--teams-blue);
    color: var(--teams-text-primary);
}

[data-theme="dark"] .is-valid {
    border-color: var(--teams-green) !important;
}

[data-theme="dark"] .is-invalid {
    border-color: var(--teams-red) !important;
}

[data-theme="dark"] .text-success {
    color: var(--teams-green) !important;
}

[data-theme="dark"] .text-danger {
    color: var(--teams-red) !important;
}

/* AI Assistant Styles */
.ai-actions {
    margin-top: 0.5rem;
}

.ai-suggestions {
    margin-top: 0.5rem;
}

.ai-suggestion {
    background-color: var(--teams-gray-light);
    border: 1px solid var(--teams-border);
    border-radius: 0.375rem;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    transition: all 0.2s ease;
}

.ai-suggestion:hover {
    background-color: var(--teams-sidebar);
    box-shadow: var(--teams-shadow);
}

.suggestion-text {
    font-size: 0.9rem;
    line-height: 1.4;
    margin-top: 0.25rem;
    color: var(--teams-text-primary);
}

.ai-suggestions-container {
    max-width: 100%;
    animation: fadeIn 0.3s ease-in;
}

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

/* AI Button Styles */
.ai-actions .btn {
    font-size: 0.8rem;
    padding: 0.375rem 0.75rem;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
}

.ai-actions .btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--teams-shadow);
}

.ai-actions .btn-outline-primary {
    border-color: var(--teams-blue);
    color: var(--teams-blue);
}

.ai-actions .btn-outline-primary:hover {
    background-color: var(--teams-blue);
    border-color: var(--teams-blue);
    color: white;
}

.ai-actions .btn-outline-success {
    border-color: var(--teams-green);
    color: var(--teams-green);
}

.ai-actions .btn-outline-success:hover {
    background-color: var(--teams-green);
    border-color: var(--teams-green);
    color: white;
}

/* AI Suggestion Use Button */
.ai-suggestion .btn-primary {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background-color: var(--teams-blue);
    border-color: var(--teams-blue);
}

.ai-suggestion .btn-primary:hover {
    background-color: var(--teams-blue-hover);
    border-color: var(--teams-blue-hover);
}

/* Spam Classification Indicators */
.spam-indicator {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    border-radius: 0.25rem;
    font-weight: 500;
    margin-left: 0.5rem;
}

.spam-indicator.spam {
    background-color: var(--teams-red);
    color: white;
}

.spam-indicator.review {
    background-color: var(--teams-yellow);
    color: var(--teams-text-primary);
}

.spam-indicator.legitimate {
    background-color: var(--teams-green);
    color: white;
}

/* Dark Mode AI Styles */
[data-theme="dark"] .ai-suggestion {
    background-color: var(--teams-sidebar);
    border-color: var(--teams-border);
}

[data-theme="dark"] .ai-suggestion:hover {
    background-color: var(--teams-sidebar-hover);
}

[data-theme="dark"] .suggestion-text {
    color: var(--teams-text-primary);
}

[data-theme="dark"] .ai-actions .btn-outline-primary {
    border-color: var(--teams-blue);
    color: var(--teams-blue);
}

[data-theme="dark"] .ai-actions .btn-outline-success {
    border-color: var(--teams-green);
    color: var(--teams-green);
}

/* Loading Animation for AI Button */
.ai-actions .btn .fa-spinner {
    animation: spin 1s linear infinite;
}

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