/* ============================================================================
   PRINTLOGIC.AI UI REDESIGN STYLES
   ============================================================================
   Version: 3.1.0
   Date: 2026-01-12
   Description: Styles for redesigned navigation, chat, banners, and mobile UX
   ============================================================================ */

/* ============================================================================
   CSS VARIABLES - EXTENSION
   ============================================================================ */
:root {
    /* Z-index stack order */
    --z-sidebar-flyout: 900;
    --z-sidebar: 950;
    --z-header: 1000;
    --z-modal: 1100;
    --z-right-flyout: 1150;
    --z-chat-fab: 1200;
    --z-chat-window: 1250;
    --z-notification: 1300;

    /* Animation durations */
    --transition-fast: 150ms;
    --transition-normal: 300ms;
    --transition-slow: 500ms;

    /* Sidebar dimensions */
    --sidebar-width-expanded: 260px;
    --sidebar-width-collapsed: 60px;
    --right-flyout-width: 280px;
    --header-height: 56px;

    /* Chat dimensions */
    --chat-fab-size: 56px;
    --chat-window-width: 380px;
    --chat-window-height: 520px;

    /* Banner height */
    --banner-height: 80px;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    :root {
        --transition-fast: 0ms;
        --transition-normal: 0ms;
        --transition-slow: 0ms;
    }
}

body.reduced-motion * {
    animation-duration: 0ms !important;
    transition-duration: 0ms !important;
}

/* ============================================================================
   LEFT SIDEBAR ENHANCEMENTS
   ============================================================================ */

/* Collapsed state - show icon.png instead of text */
.sidebar-left.collapsed .sidebar-logo-img {
    display: block !important;
    width: 32px;
    height: 32px;
}

.sidebar-left.collapsed .sidebar-brand {
    display: none !important;
}

/* Toggle area - horizontal layout for minimize and pin buttons */
/* Left-aligned so buttons stay in same position when collapsed/expanded */
.sidebar-toggle-area {
    display: flex !important;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    padding: 12px !important;
}

/* Minimize/Toggle button - white background with purple stroke */
.sidebar-toggle-btn {
    width: 32px !important;
    height: 32px !important;
    min-width: 32px;
    min-height: 32px;
    padding: 0 !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--primary) !important;
    background: white !important;
    color: var(--primary) !important;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-normal) ease;
}

.sidebar-toggle-btn:hover {
    background: rgba(102, 126, 234, 0.1) !important;
    border-color: var(--primary) !important;
    color: var(--primary) !important;
}

.sidebar-toggle-btn:active {
    background: var(--primary) !important;
    color: white !important;
}

.sidebar-toggle-btn .toggle-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal) ease;
}

/* Arrow direction indicator */
.sidebar-left.collapsed .sidebar-toggle-btn .toggle-icon {
    transform: rotate(180deg);
}

/* Pin button - white background with purple stroke */
.sidebar-pin-btn {
    width: 32px !important;
    height: 32px !important;
    min-width: 32px;
    min-height: 32px;
    padding: 0 !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--primary) !important;
    background: white !important;
    color: var(--primary) !important;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-normal) ease;
}

.sidebar-left .sidebar-pin-btn .pin-label {
    display: none;
}

.sidebar-pin-btn:hover {
    background: rgba(102, 126, 234, 0.1) !important;
    border-color: var(--primary) !important;
    color: var(--primary) !important;
}

.sidebar-pin-btn.active,
.sidebar-pin-btn:active {
    background: var(--primary) !important;
    color: white !important;
}

/* Navigation highlight effect - notebook style */
.sidebar-nav .nav-item {
    position: relative;
    display: flex !important;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    transition: background var(--transition-fast) ease,
                color var(--transition-fast) ease;
}

.sidebar-nav .nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary);
    transform: scaleY(0);
    transition: transform var(--transition-normal) ease;
    border-radius: 0 2px 2px 0;
}

.sidebar-nav .nav-item.active::before {
    transform: scaleY(1);
}

.sidebar-nav .nav-item:hover:not(.active) {
    background: rgba(102, 126, 234, 0.06);
}

.sidebar-nav .nav-item.active {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.12) 0%, transparent 100%);
    color: var(--primary);
    font-weight: 500;
}

/* Fix: Icons always visible regardless of expansion state */
.sidebar-nav .nav-category-header .nav-icon,
.sidebar-nav .nav-item .nav-icon {
    display: flex !important;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    opacity: 1 !important;
    visibility: visible !important;
    width: 24px;
    min-width: 24px;
}

/* Left-justify all icons and text in sidebar */
.sidebar-nav .nav-item,
.sidebar-nav .nav-category-header {
    justify-content: flex-start !important;
    text-align: left;
}

.sidebar-nav .nav-label {
    flex: 1;
    text-align: left;
}

.sidebar-nav .nav-category-header {
    display: flex !important;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
}

/* ============================================================================
   ICON DISPLAY BUG FIX - Collapsed State
   Per directive: When sidebar is closed but internal navigation items are expanded,
   the 7 icons display incorrectly with spacing issues.
   ============================================================================ */

/* When sidebar is collapsed, hide ALL text and child items */
.sidebar-left.collapsed .nav-label,
.sidebar-left.collapsed .nav-expand-arrow,
.sidebar-left.collapsed .nav-category-items {
    display: none !important;
    height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
}

/* Reset category headers to icon-only mode */
.sidebar-left.collapsed .nav-category-header {
    justify-content: center !important;
    padding: 12px 0 !important;
}

/* Ensure consistent icon sizing and spacing in collapsed state */
.sidebar-left.collapsed .nav-icon {
    width: 24px !important;
    height: 24px !important;
    margin: 0 !important;
}

/* Ensure each category takes consistent space in collapsed state */
.sidebar-left.collapsed .nav-category {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    margin-bottom: 8px !important;
}

/* Reset expanded state styling when collapsed */
.sidebar-left.collapsed .nav-category.expanded .nav-category-items {
    max-height: 0 !important;
    height: 0 !important;
}

/* Collapsed sidebar flyout menu */
.sidebar-flyout {
    position: fixed;
    left: var(--sidebar-width-collapsed);
    top: 0;
    min-width: 200px;
    max-width: 280px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0 8px 8px 0;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
    z-index: var(--z-sidebar-flyout);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: opacity var(--transition-fast) ease,
                visibility var(--transition-fast) ease,
                transform var(--transition-fast) ease;
}

.sidebar-flyout.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.sidebar-flyout-header {
    padding: 12px 16px;
    font-weight: 600;
    font-size: 14px;
    color: var(--primary);
    border-bottom: 1px solid var(--border);
    margin-bottom: 4px;
}

.sidebar-flyout .flyout-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    cursor: pointer;
    color: var(--text);
    font-size: 14px;
    transition: background var(--transition-fast) ease;
}

.sidebar-flyout .flyout-item:hover {
    background: var(--info-bg);
    color: var(--primary);
}

.sidebar-flyout .flyout-item .flyout-icon {
    width: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.sidebar-flyout .flyout-item:hover .flyout-icon {
    color: var(--primary);
}

/* Dark mode flyout */
body.dark-mode .sidebar-flyout {
    background: #1e1e1e;
    border-color: #333;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.4);
}

body.dark-mode .sidebar-flyout .flyout-item:hover {
    background: #2a2a2a;
}

/* ============================================================================
   MAIN HEADER ENHANCEMENTS
   ============================================================================ */

/* Center the navigation in the header */
.toolbar-content {
    justify-content: space-between !important;
}

.toolbar-left {
    flex: 1;
    min-width: 50px;
}

.toolbar-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.toolbar-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

/* Logo in nav - next to Home button, matches button height */
.toolbar-nav .toolbar-logo {
    display: block !important;
    visibility: visible !important;
    height: 36px;
    width: auto;
    min-height: 36px;
    margin-right: 8px;
    cursor: pointer;
    flex-shrink: 0;
    border-radius: 6px;
}

/* Narrower navigation buttons */
.toolbar-nav .toolbar-link {
    padding: 8px 12px;
    font-size: 13px;
    min-width: auto;
}

/* Click-only dropdown - remove hover behavior */
.header-dropdown {
    position: relative;
}

.header-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    z-index: var(--z-header);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--transition-fast) ease,
                visibility var(--transition-fast) ease,
                transform var(--transition-fast) ease;
}

.header-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.header-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
    transition: background var(--transition-fast) ease;
}

.header-dropdown-item:hover {
    background: var(--info-bg);
    color: var(--primary);
}

.header-dropdown-item .dropdown-icon {
    width: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.header-dropdown-item:hover .dropdown-icon {
    color: var(--primary);
}

/* Help button - question mark icon */
.toolbar-help-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast) ease;
}

.toolbar-help-btn:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--primary);
    color: var(--primary);
}

.toolbar-help-btn .help-icon {
    width: 18px;
    height: 18px;
}

/* Logout button - fixed width with icon + text */
.toolbar-logout-btn {
    display: flex !important;
    align-items: center;
    gap: 6px;
    padding: 6px 12px !important;
    width: 90px;
    min-width: 90px;
    white-space: nowrap;
    font-size: 13px;
    font-weight: 500;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    cursor: pointer;
    transition: all var(--transition-fast) ease;
}

.toolbar-logout-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: #ef4444;
    color: #ef4444;
}

.toolbar-logout-btn .logout-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.toolbar-logout-btn .logout-text {
    flex-shrink: 0;
}

/* User display text with role */
.toolbar-user-greeting {
    font-size: 13px;
    color: var(--text-secondary);
}

.toolbar-user-greeting .user-role {
    font-size: 11px;
    color: var(--primary);
    font-weight: 600;
}

/* Responsive logo behavior */
@media (max-width: 768px) {
    .toolbar-logo-full {
        display: none;
    }
    .toolbar-logo-icon {
        display: block;
    }
}

@media (min-width: 769px) {
    .toolbar-logo-full {
        display: block;
    }
    .toolbar-logo-icon {
        display: none;
    }
}

/* Preview/Viewing controls - narrow viewports */
@media (max-width: 900px) {
    .toolbar-preview-controls {
        position: absolute;
        top: calc(var(--header-height) + 4px);
        left: 50%;
        transform: translateX(-50%);
        background: var(--surface);
        padding: 6px 12px;
        border-radius: 6px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        border: 1px solid var(--border);
        z-index: calc(var(--z-header) - 1);
    }
}

/* ============================================================================
   RIGHT FLYOUT PANEL - REDUCED WIDTH
   ============================================================================ */

.sidebar-right {
    width: var(--right-flyout-width) !important;
    right: calc(-1 * var(--right-flyout-width)) !important;
}

.sidebar-right.open {
    right: 0 !important;
}

.container.sidebar-right-open {
    margin-right: calc(var(--right-flyout-width) + 15px) !important;
}

/* Gear icon inside panel */
.right-flyout-gear {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--info-bg);
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast) ease;
}

.right-flyout-gear:hover {
    background: var(--primary);
    color: white;
}

/* Proportional internal elements */
.right-sidebar-section {
    padding: 12px !important;
    margin-bottom: 12px !important;
}

.right-sidebar-section h4 {
    font-size: 11px !important;
    margin-bottom: 8px !important;
}

/* Right flyout animation when chat opens - slides upward */
.sidebar-right {
    transition: right var(--transition-normal) ease,
                transform var(--transition-normal) ease;
    z-index: var(--z-right-flyout);
}

.sidebar-right.chat-open {
    transform: translateY(-100px);
}

/* Ensure chat window has priority over right flyout */
.chat-window {
    z-index: var(--z-chat-window) !important;
}

.chat-fab {
    z-index: var(--z-chat-fab) !important;
}

/* ============================================================================
   ADVERTISEMENT BANNER SECTION
   ============================================================================ */

.banner-container {
    position: relative;
    width: 100%;
    height: var(--banner-height);
    background: var(--info-bg);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 16px;
}

.banner-slides {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform var(--transition-slow) ease;
}

.banner-slide {
    flex: 0 0 100%;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.banner-slide img,
.banner-slide video {
    max-width: 100%;
    max-height: 80px;
    height: auto;
    object-fit: contain;
}

/* Banner controls */
.banner-controls {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    gap: 4px;
    z-index: 10;
}

.banner-control-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all var(--transition-fast) ease;
    padding: 0;
    margin: 0;
}

.banner-control-btn:hover {
    background: white;
    color: var(--primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.banner-control-btn.paused {
    background: var(--primary);
    color: white;
}

/* Banner indicators (dots) */
.banner-indicators {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
}

.banner-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all var(--transition-fast) ease;
}

.banner-dot.active {
    background: var(--primary);
    transform: scale(1.2);
}

/* Hidden banner state */
.banner-container.hidden {
    display: none;
}

/* Banner loading placeholder */
.banner-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    font-size: 13px;
}

/* ============================================================================
   ASK PRL CHAT SYSTEM
   ============================================================================ */

/* Chat FAB (Floating Action Button) - override generic button styles from styles.css */
.chat-fab {
    position: fixed !important;
    bottom: 24px !important;
    right: 24px !important;
    width: var(--chat-fab-size) !important;
    height: var(--chat-fab-size) !important;
    min-width: var(--chat-fab-size) !important;
    max-width: var(--chat-fab-size) !important;
    border-radius: 50% !important;
    background: var(--bg-grad) !important;
    border: none !important;
    cursor: pointer;
    display: flex !important;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px var(--shadow);
    z-index: var(--z-chat-fab);
    transition: transform var(--transition-fast) ease,
                box-shadow var(--transition-fast) ease;
    padding: 0 !important;
    margin: 0 !important;
    text-align: center;
}

.chat-fab:hover {
    transform: scale(1.08) !important;
    box-shadow: 0 6px 28px var(--shadow) !important;
    background: var(--bg-grad) !important;
    color: white !important;
    border: none !important;
}

.chat-fab:active {
    transform: scale(0.95);
}

.chat-fab-icon {
    width: 28px;
    height: 28px;
    color: white;
}

/* Minimized chat bubble */
.chat-fab.minimized {
    background: var(--primary);
}

.chat-fab.minimized::after {
    content: '';
    position: absolute;
    top: -4px;
    right: -4px;
    width: 16px;
    height: 16px;
    background: #10b981;
    border-radius: 50%;
    border: 2px solid white;
}

/* Chat Window */
.chat-window {
    position: fixed;
    bottom: 96px;
    right: 24px;
    width: var(--chat-window-width);
    height: var(--chat-window-height);
    background: var(--surface);
    border-radius: 16px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.2);
    z-index: var(--z-chat-window);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: opacity var(--transition-normal) ease,
                visibility var(--transition-normal) ease,
                transform var(--transition-normal) ease;
}

.chat-window.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* Chat Window Header */
.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--bg-grad);
    color: white;
}

.chat-header-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.chat-header-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-header-avatar img {
    width: 24px;
    height: 24px;
}

.chat-header-title {
    font-weight: 600;
    font-size: 15px;
}

.chat-header-subtitle {
    font-size: 11px;
    opacity: 0.8;
}

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

.chat-header-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    cursor: pointer;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast) ease;
    padding: 0;
    margin: 0;
}

.chat-header-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* Chat Messages Area */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--info-bg);
}

/* Chat Message Bubbles */
.chat-message {
    max-width: 85%;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.5;
    word-wrap: break-word;
}

.chat-message.user {
    align-self: flex-end;
    background: var(--primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.chat-message.assistant {
    align-self: flex-start;
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
}

.chat-message-time {
    font-size: 10px;
    opacity: 0.7;
    margin-top: 4px;
    text-align: right;
}

/* Typing Indicator */
.chat-typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    background: var(--surface);
    border-radius: 16px;
    border-bottom-left-radius: 4px;
    max-width: 80px;
    align-self: flex-start;
}

.chat-typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: typing-bounce 1.4s infinite ease-in-out;
}

.chat-typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.chat-typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing-bounce {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-8px);
    }
}

/* Chat Input Area */
.chat-input-area {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.chat-input-wrapper {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

.chat-input {
    flex: 1;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 14px;
    resize: none;
    max-height: 120px;
    min-height: 44px;
    background: var(--surface);
    color: var(--text);
    margin: 0;
}

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

.chat-send-btn {
    width: 44px;
    height: 44px;
    border: none;
    background: var(--bg-grad);
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: transform var(--transition-fast) ease;
    padding: 0;
    margin: 0;
    flex-shrink: 0;
}

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

.chat-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Chat Footer Links */
.chat-footer {
    padding: 8px 16px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: center;
    gap: 16px;
    background: var(--surface);
}

.chat-footer-link {
    font-size: 12px;
    color: var(--text-muted);
    text-decoration: none;
    cursor: pointer;
    transition: color var(--transition-fast) ease;
}

.chat-footer-link:hover {
    color: var(--primary);
}

/* Dark mode chat */
body.dark-mode .chat-window {
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

body.dark-mode .chat-messages {
    background: #1a1a1a;
}

body.dark-mode .chat-typing {
    background: #2a2a2a;
}

/* ============================================================================
   KEYBOARD SHORTCUTS PANEL
   ============================================================================ */

.shortcuts-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal) ease,
                visibility var(--transition-normal) ease;
}

.shortcuts-modal.visible {
    opacity: 1;
    visibility: visible;
}

.shortcuts-panel {
    background: var(--surface);
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.shortcuts-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.shortcuts-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin: 0;
}

.shortcuts-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--info-bg);
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast) ease;
    padding: 0;
    margin: 0;
}

.shortcuts-close:hover {
    background: var(--primary);
    color: white;
}

.shortcuts-content {
    padding: 20px 24px;
}

.shortcuts-section {
    margin-bottom: 24px;
}

.shortcuts-section:last-child {
    margin-bottom: 0;
}

.shortcuts-section-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.shortcut-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.shortcut-row:last-child {
    border-bottom: none;
}

.shortcut-keys {
    display: flex;
    gap: 4px;
}

.shortcut-key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    padding: 0 8px;
    background: var(--info-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
}

.shortcut-description {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ============================================================================
   MOBILE NAVIGATION
   ============================================================================ */

/* Hamburger menu button */
.mobile-menu-btn {
    display: none;
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    cursor: pointer;
    padding: 8px;
    margin: 0;
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 24px;
}

.hamburger-line {
    width: 100%;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform var(--transition-normal) ease,
                opacity var(--transition-normal) ease;
}

/* Hamburger animation to X */
.mobile-menu-btn.open .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translateY(7px);
}

.mobile-menu-btn.open .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.open .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translateY(-7px);
}

/* Mobile slide-out menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    background: var(--surface);
    z-index: calc(var(--z-sidebar) + 10);
    overflow-y: auto;
    transition: left var(--transition-normal) ease;
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.2);
}

.mobile-menu.open {
    left: 0;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-sidebar) + 5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal) ease,
                visibility var(--transition-normal) ease;
}

.mobile-menu-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.mobile-menu-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mobile-menu-logo img {
    width: 32px;
    height: 32px;
}

.mobile-menu-logo span {
    font-weight: 600;
    font-size: 16px;
    color: var(--primary);
}

.mobile-menu-close {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--info-bg);
    border-radius: 8px;
    cursor: pointer;
    font-size: 20px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
}

.mobile-menu-nav {
    padding: 16px 0;
}

.mobile-nav-divider {
    height: 1px;
    background: var(--border);
    margin: 8px 20px;
}

.mobile-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    cursor: pointer;
    color: var(--text);
    font-size: 15px;
    transition: background var(--transition-fast) ease;
}

.mobile-nav-item:hover,
.mobile-nav-item.active {
    background: var(--info-bg);
    color: var(--primary);
}

.mobile-nav-item .nav-icon,
.mobile-nav-item .mobile-nav-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.mobile-nav-category {
    border-top: 1px solid var(--border);
    margin-top: 8px;
    padding-top: 8px;
}

.mobile-nav-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    cursor: pointer;
    color: var(--text);
    font-weight: 500;
}

.mobile-nav-category-header .category-arrow {
    transition: transform var(--transition-fast) ease;
}

.mobile-nav-category.expanded .category-arrow {
    transform: rotate(180deg);
}

.mobile-nav-category-items {
    display: none;
    padding-left: 16px;
}

.mobile-nav-category.expanded .mobile-nav-category-items {
    display: block;
}

/* Swipe gesture indicators */
.swipe-indicator {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60px;
    background: var(--primary);
    border-radius: 2px;
    opacity: 0;
    transition: opacity var(--transition-fast) ease;
    z-index: calc(var(--z-sidebar) + 20);
}

.swipe-indicator.left {
    left: 0;
    border-radius: 0 2px 2px 0;
}

.swipe-indicator.right {
    right: 0;
    border-radius: 2px 0 0 2px;
}

.swipe-indicator.visible {
    opacity: 0.5;
}

/* ============================================================================
   OFFLINE INDICATOR
   ============================================================================ */

.offline-indicator {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: #f59e0b;
    color: white;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
}

.offline-indicator.visible {
    display: flex;
}

.offline-indicator-dot {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ============================================================================
   RESPONSIVE BREAKPOINTS
   ============================================================================ */

/* Phone (< 576px) */
@media (max-width: 575px) {
    :root {
        --chat-window-width: calc(100vw - 32px);
        --chat-window-height: calc(100vh - 140px);
        --banner-height: 60px;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .sidebar-left {
        display: none !important;
    }

    .browser-toolbar .toolbar-nav {
        display: none;
    }

    .browser-toolbar .toolbar-brand {
        display: none;
    }

    .chat-fab {
        bottom: 16px;
        right: 16px;
        width: 52px;
        height: 52px;
    }

    .chat-window {
        bottom: 80px;
        right: 16px;
        border-radius: 12px;
    }

    .banner-container {
        height: var(--banner-height);
        border-radius: 6px;
    }

    .banner-control-btn {
        width: 24px;
        height: 24px;
        font-size: 12px;
    }
}

/* Tablet (576px - 992px) */
@media (min-width: 576px) and (max-width: 992px) {
    :root {
        --chat-window-width: 360px;
        --chat-window-height: 480px;
    }

    .mobile-menu-btn {
        display: none;
    }

    .sidebar-left {
        left: calc(-1 * var(--sidebar-width-expanded));
        width: var(--sidebar-width-expanded) !important;
    }

    .sidebar-left.open {
        left: 0;
    }

    .container.sidebar-left-open,
    .container.sidebar-left-collapsed {
        margin-left: 15px !important;
    }

    .toolbar-toggle-sidebar-btn {
        display: flex;
    }
}

/* Desktop (> 992px) */
@media (min-width: 993px) {
    .mobile-menu-btn,
    .mobile-menu,
    .mobile-menu-overlay {
        display: none !important;
    }

    .toolbar-toggle-sidebar-btn {
        display: none;
    }
}

/* ============================================================================
   CHAT HISTORY PAGE
   ============================================================================ */

.chat-history-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chat-history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast) ease;
}

.chat-history-item:hover {
    border-color: var(--primary);
    box-shadow: 0 2px 12px rgba(102, 126, 234, 0.1);
}

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

.chat-history-title {
    font-weight: 500;
    color: var(--text);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-history-date {
    font-size: 12px;
    color: var(--text-muted);
}

.chat-history-actions {
    display: flex;
    gap: 8px;
}

.chat-history-action-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--info-bg);
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast) ease;
    padding: 0;
    margin: 0;
}

.chat-history-action-btn:hover {
    background: var(--primary);
    color: white;
}

.chat-history-action-btn.delete:hover {
    background: #ef4444;
}

/* Search input for chat history */
.chat-history-search {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.chat-history-search input {
    flex: 1;
    margin: 0;
}

/* ============================================================================
   SUPER ADMIN BANNER MANAGEMENT UI
   ============================================================================ */

.banner-manager {
    padding: 20px;
}

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

.banner-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.banner-list-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.banner-list-item.inactive {
    opacity: 0.6;
}

.banner-list-thumbnail {
    width: 120px;
    height: 60px;
    border-radius: 6px;
    overflow: hidden;
    background: var(--info-bg);
    flex-shrink: 0;
}

.banner-list-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.banner-list-title {
    font-weight: 500;
    color: var(--text);
    margin-bottom: 4px;
}

.banner-list-meta {
    font-size: 12px;
    color: var(--text-muted);
}

.banner-list-actions {
    display: flex;
    gap: 8px;
}

/* Banner edit form */
.banner-edit-form {
    display: grid;
    gap: 16px;
}

.banner-edit-preview {
    width: 100%;
    height: 120px;
    background: var(--info-bg);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-edit-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* ============================================================================
   SHORTCUTS CUSTOMIZATION UI
   ============================================================================ */

.shortcuts-customizer {
    padding: 20px;
}

.shortcuts-customizer-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.shortcut-customizer-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.shortcut-customizer-key-input {
    width: 120px;
    padding: 8px 12px !important;
    margin: 0 !important;
    text-align: center;
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
}

.shortcut-customizer-action {
    flex: 1;
    font-size: 14px;
    color: var(--text);
}

.shortcut-customizer-toggle {
    width: 44px;
    height: 24px;
    background: var(--border);
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: background var(--transition-fast) ease;
}

.shortcut-customizer-toggle.active {
    background: var(--primary);
}

.shortcut-customizer-toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition-fast) ease;
}

.shortcut-customizer-toggle.active::after {
    transform: translateX(20px);
}

/* ============================================================================
   KEYBOARD SHORTCUTS MODAL STYLES
   ============================================================================ */

/* Help Modal */
.keyboard-shortcuts-modal .modal-content {
    max-width: 500px;
}

.keyboard-shortcuts-modal .modal-body {
    padding: 20px;
}

.shortcuts-section {
    margin-bottom: 24px;
}

.shortcuts-section h3 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin: 0 0 12px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.shortcut-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: var(--surface);
    border-radius: 6px;
}

.shortcut-keys {
    display: flex;
    gap: 4px;
    align-items: center;
}

.shortcut-keys kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.shortcut-desc {
    font-size: 14px;
    color: var(--text-secondary);
}

.shortcuts-tip {
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.shortcuts-tip kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 3px;
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
    font-size: 11px;
    font-weight: 500;
}

/* Customization Modal */
.shortcuts-customize-modal .modal-content {
    max-width: 600px;
}

.shortcuts-customize-modal .modal-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0 0 20px 0;
}

.shortcuts-edit-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 400px;
    overflow-y: auto;
}

.shortcut-edit-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.shortcut-edit-desc {
    flex: 1;
    font-size: 14px;
    color: var(--text);
}

.shortcut-edit-keys {
    display: flex;
    align-items: center;
    gap: 8px;
}

.shortcut-key-input {
    width: 140px;
    padding: 8px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    text-align: center;
    color: var(--text);
    cursor: pointer;
    transition: border-color var(--transition-fast) ease,
                box-shadow var(--transition-fast) ease;
}

.shortcut-key-input:focus,
.shortcut-key-input.recording {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(138, 79, 255, 0.15);
}

.shortcut-key-input.recording {
    color: var(--primary);
    animation: pulse-border 1.5s infinite;
}

@keyframes pulse-border {
    0%, 100% {
        box-shadow: 0 0 0 3px rgba(138, 79, 255, 0.15);
    }
    50% {
        box-shadow: 0 0 0 5px rgba(138, 79, 255, 0.25);
    }
}

.shortcut-record-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast) ease;
}

.shortcut-record-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.shortcuts-edit-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}