:root {
    /* Colors */
    --primary-color: #4a9eff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --dark-bg: #1a1d23;
    --darker-bg: #0f1114;
    --light-bg: #2d3339;
    --lighter-bg: #495057;
    --text-color: #ffffff;
    --text-muted: #b8c2cc;
    --text-secondary: #e9ecef;
    --border-color: #404448;
    --input-bg: #252a30;
    --card-bg: #242830;
    
    /* Font sizes */
    --font-sm: 0.875rem;
    --font-md: 1rem;
    --font-lg: 1.25rem;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--lighter-bg);
    border-radius: 4px;
    transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--lighter-bg) var(--dark-bg);
}

/* Login Screen */
#login-area {
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    background-color: var(--dark-bg);
    padding: 1rem;
}

.login-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    max-width: 500px;
    width: 100%;
    margin: 0 auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    color: var(--text-color);
}

/* Make sure the column takes proper width */
#login-area .col-md-6 {
    min-width: 300px;
    width: 100%;
    max-width: 500px;
}

.login-card .card-header {
    background-color: var(--darker-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem 1.5rem 1.5rem;
    border-radius: 12px 12px 0 0;
}

.login-card .card-header h1 {
    font-family: 'Roboto Mono', monospace;
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.login-card .card-header p {
    color: var(--text-muted);
    margin-bottom: 0;
}

.login-card .card-body {
    padding: 2rem 1.5rem;
}

.login-card .card-body .form-label {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.login-card .card-footer {
    background-color: var(--darker-bg);
    border-top: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    border-radius: 0 0 12px 12px;
}

/* Download section styling */
.login-card .border-top {
    border-color: var(--border-color) !important;
}

.login-card .text-muted {
    color: var(--text-muted) !important;
}

.login-card h6.text-muted {
    color: var(--text-secondary) !important;
    font-weight: 500;
}

.form-control {
    background-color: var(--input-bg);
    border-color: var(--border-color);
    color: var(--text-color);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.form-control:focus {
    background-color: var(--input-bg);
    border-color: var(--primary-color);
    color: var(--text-color);
    box-shadow: 0 0 0 0.25rem rgba(74, 158, 255, 0.25);
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.8;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s ease;
    min-height: 48px; /* Touch-friendly height */
}

.btn-primary:hover, .btn-primary:focus {
    background-color: #1a68d1;
    border-color: #1a68d1;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(42, 125, 244, 0.3);
}

.btn-outline-secondary {
    border-color: var(--border-color);
    color: var(--text-secondary);
    background-color: transparent;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.btn-outline-secondary:hover {
    background-color: var(--light-bg);
    border-color: var(--primary-color);
    color: var(--text-color);
}

.status-disconnected {
    background-color: rgba(220, 53, 69, 0.15);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
    border-radius: 20px;
    padding: 0.25rem 1rem;
    display: inline-block;
    font-weight: 500;
}

.status-connecting {
    background-color: rgba(255, 193, 7, 0.15);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
    border-radius: 20px;
    padding: 0.25rem 1rem;
    display: inline-block;
    font-weight: 500;
}

.status-connected {
    background-color: rgba(40, 167, 69, 0.15);
    color: var(--success-color);
    border: 1px solid var(--success-color);
    border-radius: 20px;
    padding: 0.25rem 1rem;
    display: inline-block;
    font-weight: 500;
}

.status-reconnecting {
    background-color: rgba(255, 193, 7, 0.15);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
    border-radius: 20px;
    padding: 0.25rem 1rem;
    display: inline-block;
    animation: pulse 1.5s infinite;
    font-weight: 500;
}

.error-msg {
    color: var(--danger-color);
    text-align: center;
}

/* Chat Interface */
#chat-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.navbar {
    background-color: var(--darker-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    height: auto;
    min-height: 64px;
}

.navbar-brand {
    font-family: 'Roboto Mono', monospace;
    font-weight: bold;
    color: var(--primary-color) !important;
    font-size: 1.25rem;
}

.connection-status-area {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.connection-badge {
    background-color: rgba(40, 167, 69, 0.15);
    color: var(--success-color);
    border: 1px solid var(--success-color);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    font-size: var(--font-sm);
    font-family: 'Roboto Mono', monospace;
    white-space: nowrap;
    font-weight: 500;
}

.connection-badge i {
    font-size: 0.75rem;
    margin-right: 0.25rem;
}

.connection-badge.connecting {
    background-color: rgba(255, 193, 7, 0.15);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
    animation: pulse 1.5s infinite;
}

.connection-badge.polling {
    background-color: rgba(255, 193, 7, 0.15);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
}

.navbar-toggler {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem;
    border-radius: 6px;
    min-width: 44px;
    min-height: 44px;
    display: none; /* Hidden by default, shown on mobile */
}

.chat-wrapper {
    display: flex;
    height: calc(100vh - 64px); /* Updated for new navbar height */
    overflow: hidden;
}

/* Sidebar */
.chat-sidebar {
    width: 280px;
    background-color: var(--light-bg);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem 1rem;
    overflow-y: auto;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.sidebar-section h5 {
    color: var(--text-color);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-section h5 i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

.badge {
    background-color: var(--primary-color);
    color: white;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
}

.user-list, .agent-list {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.user-list li, .agent-list li {
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    font-size: var(--font-sm);
    transition: all 0.2s ease;
    cursor: pointer;
}

.user-list li:hover, .agent-list li:hover {
    transform: translateX(2px);
}

.user-list li {
    background-color: rgba(108, 117, 125, 0.15);
    color: var(--text-secondary);
    border-left: 3px solid var(--secondary-color);
}

.user-list li.self {
    background-color: rgba(74, 158, 255, 0.15);
    color: var(--primary-color);
    font-weight: 600;
    border-left: 3px solid var(--primary-color);
}

.agent-list li {
    background-color: rgba(220, 53, 69, 0.15);
    color: var(--danger-color);
    border-left: 3px solid var(--danger-color);
    font-weight: 500;
}

/* Main Chat Area */
.main-chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--dark-bg);
}

.messages-container {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    background-color: var(--darker-bg);
}

.message-input-area {
    padding: 1rem;
    background-color: var(--light-bg);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-height: 80px;
}

.help-btn {
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.help-btn:hover {
    transform: scale(1.05);
}

.input-group {
    flex: 1;
    display: flex;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.input-group .prompt {
    background-color: var(--input-bg);
    color: var(--success-color);
    border-color: var(--border-color);
    font-family: 'Roboto Mono', monospace;
    font-weight: bold;
    border-right: none;
    padding: 0.75rem 1rem;
    font-size: 1rem;
}

.input-group .form-control {
    border-left: none;
    border-right: none;
    border-radius: 0;
    font-size: 1rem;
    padding: 0.75rem 1rem;
}

.input-group .btn {
    border-left: none;
    border-radius: 0;
    padding: 0.75rem 1.25rem;
    min-width: 50px;
}

/* Message Styles */
.message {
    margin-bottom: 1rem;
    padding: 1rem 1.25rem;
    border-radius: 12px;
    font-family: 'Roboto Mono', monospace;
    font-size: var(--font-sm);
    word-break: break-word;
    border-left: 4px solid transparent;
    animation: fadeIn 0.3s ease;
    line-height: 1.5;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.message .sender-self {
    color: var(--primary-color);
    font-weight: bold;
}

.message .sender-other {
    color: var(--text-color);
    font-weight: bold;
}

.message .payload {
    color: var(--text-color);
}

.message .payload strong {
    font-weight: bold;
    color: #fff;
}

.message .payload em {
    font-style: italic;
    color: #ddd;
}

.message.cached {
    opacity: 0.7;
    border-right: 3px solid var(--warning-color);
}

.system-msg {
    background-color: rgba(255, 193, 7, 0.1);
    border-color: var(--warning-color);
    color: var(--text-secondary);
}

.info-msg {
    background-color: rgba(74, 158, 255, 0.1);
    border-color: var(--primary-color);
    color: var(--text-secondary);
}

.error-msg {
    background-color: rgba(220, 53, 69, 0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
    font-weight: 500;
}

.agent-msg {
    background-color: rgba(220, 53, 69, 0.1);
    border-color: var(--danger-color);
}

.agent-name {
    color: var(--danger-color);
    font-weight: bold;
}

/* Chunked message styles */
.chunked-message-status {
    color: var(--warning-color);
    font-size: 0.8em;
}

.chunked-message {
    position: relative;
}

.chunked-message.complete::before {
    content: '✓';
    position: absolute;
    right: 8px;
    top: 8px;
    color: var(--success-color);
}

/* Retry button for failed messages */
.retry-button {
    background-color: var(--warning-color);
    color: var(--dark-bg);
    border: none;
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    margin-left: 0.5rem;
    cursor: pointer;
    font-size: var(--font-sm);
}

.retry-button:hover {
    background-color: var(--danger-color);
}

/* Typing Indicator */
.typing-indicator {
    background-color: rgba(220, 53, 69, 0.1);
    border-left: 3px solid var(--danger-color);
    padding: 8px 12px;
    margin-bottom: 10px;
    border-radius: 6px;
    font-family: 'Roboto Mono', monospace;
    font-size: var(--font-sm);
    opacity: 0.9;
    color: var(--text-secondary);
}

.typing-dots span {
    animation: typingDots 1.4s infinite;
    display: inline-block;
    color: var(--danger-color);
}

@keyframes typingDots {
    0%, 20% {
        transform: translateY(0);
        opacity: 0.6;
    }
    40% {
        transform: translateY(-4px);
        opacity: 1;
    }
    60%, 100% {
        transform: translateY(0);
        opacity: 0.6;
    }
}

/* Autocomplete Styles */
#autocomplete-container {
    position: absolute;
    z-index: 1000;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    max-height: 200px;
    overflow-y: auto;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    /* Position adjustment to ensure visibility */
    bottom: calc(100% + 10px);
    left: 10px !important;
    top: auto !important;
}

.autocomplete-item {
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.autocomplete-item:hover,
.autocomplete-item.selected {
    background-color: var(--primary-color);
    color: white;
}

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

/* Improve connection status area styling */
.connection-status-area {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Connection Health */
.connection-health {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: none;
    background-color: rgba(40, 167, 69, 0.15);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    white-space: nowrap;
}

/* Mobile Styles */
@media (max-width: 768px) {
    #login-area {
        padding: 1rem 0.5rem;
    }
    
    .login-card {
        margin: 0;
        border-radius: 16px;
    }
    
    .login-card .card-header {
        padding: 1.5rem 1rem 1rem;
    }
    
    .login-card .card-header h1 {
        font-size: 1.5rem;
    }
    
    .login-card .card-body {
        padding: 1.5rem 1rem;
    }
    
    .login-card .card-body .form-label {
        color: var(--text-secondary);
    }
    
    .login-card .card-body .text-muted {
        color: var(--text-muted) !important;
    }
    
    .login-card .card-footer {
        padding: 1rem;
    }
    
    .navbar {
        padding: 0.5rem 1rem;
        flex-wrap: wrap;
    }
    
    .navbar-brand {
        font-size: 1rem;
    }
    
    .connection-status-area {
        order: 2;
        margin-left: auto;
    }
    
    .navbar-toggler {
        display: block !important;
        order: 3;
        margin-left: 0.5rem;
    }
    
    .connection-badge {
        font-size: 0.75rem;
        padding: 0.4rem 0.6rem;
    }
    
    .connection-health {
        display: none !important; /* Hide on mobile to save space */
    }
    
    .chat-wrapper {
        flex-direction: column;
        height: calc(100vh - 56px);
    }
    
    .chat-sidebar {
        width: 100%;
        height: 0;
        max-height: 50vh;
        overflow: hidden;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        transition: height 0.3s ease;
        padding: 0;
    }
    
    .chat-sidebar.open {
        height: 50vh;
        padding: 1rem;
        overflow-y: auto;
    }
    
    .sidebar-section {
        margin-bottom: 1rem;
    }
    
    .sidebar-section h5 {
        font-size: 0.9rem;
        margin-bottom: 0.75rem;
    }
    
    .user-list li, .agent-list li {
        padding: 0.5rem 0.75rem;
        margin-bottom: 0.25rem;
        font-size: 0.8rem;
    }
    
    .main-chat-area {
        flex: 1;
        min-height: 0; /* Important for flex child overflow */
    }
    
    .messages-container {
        padding: 0.75rem;
    }
    
    .message {
        padding: 0.75rem 1rem;
        margin-bottom: 0.75rem;
        font-size: 0.85rem;
        border-radius: 10px;
    }
    
    .message-input-area {
        padding: 0.75rem;
        min-height: 70px;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .help-btn {
        width: 40px;
        height: 40px;
        order: 2;
    }
    
    .input-group {
        order: 1;
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .input-group .form-control {
        font-size: 16px; /* Prevents zoom on iOS */
        padding: 0.75rem;
    }
    
    .input-group .prompt {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .input-group .btn {
        padding: 0.75rem 1rem;
        min-width: 48px;
    }
    
    /* Touch improvements */
    .btn {
        min-height: 44px;
        padding: 0.75rem 1rem;
    }
    
    .form-control {
        min-height: 44px;
    }
    
    /* Autocomplete mobile adjustments */
    #autocomplete-container {
        position: fixed;
        bottom: 100px;
        left: 0.75rem;
        right: 0.75rem;
        width: auto;
        max-height: 40vh;
        border-radius: 10px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    }
}

/* Extra small screens */
@media (max-width: 480px) {
    .login-card .card-header h1 {
        font-size: 1.25rem;
    }
    
    .navbar-brand {
        font-size: 0.9rem;
    }
    
    .connection-badge {
        font-size: 0.7rem;
        padding: 0.3rem 0.5rem;
    }
    
    .message {
        font-size: 0.8rem;
        padding: 0.5rem 0.75rem;
    }
    
    .sidebar-section h5 {
        font-size: 0.85rem;
    }
    
    .user-list li, .agent-list li {
        font-size: 0.75rem;
        padding: 0.4rem 0.6rem;
    }
}

/* Landscape phone orientation */
@media (max-width: 768px) and (orientation: landscape) {
    .chat-sidebar.open {
        height: 40vh;
    }
    
    #autocomplete-container {
        max-height: 30vh;
    }
    
    .message-input-area {
        min-height: 60px;
    }
}

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

@keyframes pulse {
    0% {
        opacity: 0.7;
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0.7;
    }
}

/* Utility Classes */
.fade-in {
    animation: fadeIn 0.3s ease;
}

.slide-up {
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Focus styles for accessibility */
.btn:focus-visible,
.form-control:focus-visible,
.navbar-toggler:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Loading state */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #666666;
        --text-muted: #cccccc;
        --text-secondary: #ffffff;
        --primary-color: #66b3ff;
    }
    
    .message {
        border-left-width: 6px;
    }
    
    .form-control {
        border-width: 2px;
    }
    
    .btn {
        border-width: 2px;
        font-weight: 600;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark mode enhancements */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
    }
}