:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --warning-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --success-color: #4facfe;
    --warning-color: #43e97b;
    --background-color: #f8faff;
    --surface-color: #fff;
    --surface-elevated: #fff;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --bg-muted: rgba(255, 255, 255, 0.9);
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --chat-user-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --chat-bot-bg: #fff;
    --chat-system-bg: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
    --border-radius-sm: 0.5rem;
    --border-radius-md: 0.75rem;
    --border-radius-lg: 1rem;
    --border-radius-xl: 1.5rem;
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1)
    }
* {
    box-sizing: border-box
    }
body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
    margin: 0;
    height: 100vh;
    background: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden
    }
/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
        } to {
        opacity: 1;
        transform: translateY(0);
        }
    }
@keyframes fadeIn {
    from {
        opacity: 0;
        } to {
        opacity: 1;
        }
    }
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
        } to {
        opacity: 1;
        transform: translateX(0);
        }
    }
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        } 50% {
        opacity: 0.7;
        }
    }
@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
        } 40%, 43% {
        transform: translate3d(0, -8px, 0);
        } 70% {
        transform: translate3d(0, -4px, 0);
        } 90% {
        transform: translate3d(0, -2px, 0);
        }
    }
@keyframes streaming {
    0% {
        border-color: #007bff;
        box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
        } 50% {
        border-color: #0056b3;
        box-shadow: 0 0 8px rgba(0, 123, 255, 0.7);
        } 100% {
        border-color: #007bff;
        box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
        }
    }
@keyframes tooltipFadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}
@keyframes tooltipFadeOut {
    from {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateY(-8px) scale(0.95);
    }
}
/* Navigation */
.nav-instance {
    background: var(--surface-elevated);
    backdrop-filter: blur(20px);
    border: none;
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    position: relative;
    flex-shrink: 0;
    top: 0;
    display: flex;
    align-items: center;
    padding: 1rem 2rem;
    justify-content: space-between;
    transition: var(--transition-normal)
    }
.nav-left {
    display: flex;
    align-items: center;
    gap: 1rem
    }
.nav-right {
    display: flex;
    align-items: center;
    gap: 0.5rem
    }
.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: var(--transition-fast)
    }
.nav-logo:hover {
    transform: translatey(-1px)
    }
.nav-logo img {
    height: 40px;
    width: 40px;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm)
    }
.nav-title {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.025em
    }
.ai-badge {
    background: var(--success-gradient);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: var(--shadow-sm);
    animation: pulse 2s infinite
    }
.user-welcome {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0.6rem;
    background: var(--surface-color);
    border: none;
    border-radius: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    cursor: pointer
    }
.user-welcome:hover {
    transform: translatey(-1px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color)
    }
.user-avatar {
    width: 28px;
    height: 28px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.75rem;
    box-shadow: var(--shadow-sm);
    border: none
    }
.welcome-text {
    color: var(--text-primary);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.025em
    }
/* App Container - Full Height Horizontal Layout */
.app-container {
    display: flex;
    flex-direction: row;
    width: 100%;
    height: 100vh;
    overflow: hidden
    }
/* Conversation Panel - Full Height Left Sidebar */
.conversation-panel {
    background: var(--surface-color);
    border: none;
    border-right: 1px solid rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative;
    z-index: 10;
    width: 352px;
    min-width: 352px;
    height: 100vh;
    flex-shrink: 0
    }

/* Subtle separator line gradient effect for light mode */
.conversation-panel::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.02) 0%,
        rgba(0, 0, 0, 0.06) 50%,
        rgba(0, 0, 0, 0.02) 100%
    );
    pointer-events: none;
    z-index: 1;
    }
/* Right Content Area - Contains Nav + Chat */
.right-content-area {
    display: flex;
    flex-direction: column;
    flex: 1;
    height: 100vh;
    overflow: hidden;
    min-width: 0
    }
/* Navigation - Now inside right-content-area */
.right-content-area .nav-instance {
    flex-shrink: 0
    }
/* Layout - Now only for chat + suggestions grid */
.main-layout {
    display: grid;
    grid-template-columns: 1fr 420px;
    grid-template-rows: 1fr;
    flex: 1;
    gap: 0;
    transition: var(--transition-normal);
    overflow: hidden
    }
.main-layout.collapsed {
    grid-template-columns: 1fr 420px;
    grid-template-rows: 1fr
    }
.main-layout.right-collapsed {
    grid-template-columns: 1fr 60px;
    grid-template-rows: 1fr
    }
.main-layout.collapsed.right-collapsed {
    grid-template-columns: 1fr 60px;
    grid-template-rows: 1fr
    }
/* Collapsed conversation panel state */
.app-container.collapsed .conversation-panel {
    width: 60px;
    min-width: 60px
    }
/* Responsive styles for new layout */
@media (max-width: 1024px) {
    .app-container {
        flex-direction: column
        }
    .app-container .conversation-panel {
        display: none
        }
    .app-container.collapsed .conversation-panel {
        display: none
        }
    .right-content-area {
        width: 100%
        }
    .main-layout {
        grid-template-columns: 1fr !important
        }
    .suggestions-panel {
        display: none !important
        }
    }
/* Subtle STT toast (barely noticeable) */
.stt-toast {
    position: fixed;
    bottom: 12px;
    left: 50%;
    transform: translatex(-50%);
    background: rgba(0, 0, 0, 0.55);
    color: rgba(255, 255, 255, 0.9);
    padding: 6px 10px;
    border-radius: 12px;
    font-size: 12px;
    line-height: 1;
    opacity: 0;
    transition: opacity 200ms ease;
    pointer-events: none;
    z-index: 2000
    }
.stt-toast.show {
    opacity: 1
    }
.main-layout.collapsed .conversation-panel {
    width: 60px
    }
.main-layout.collapsed .conversation-panel .conversation-content {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    padding: 0.5rem 0.5rem 1rem !important;
    gap: 0.75rem !important;
    height: 100% !important;
    width: 100% !important;
    overflow: hidden !important
    }
.main-layout.collapsed .conversation-panel .conversation-toggle {
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translatex(-50%);
    z-index: 10
    }
/* Hide text content and show only icons in collapsed mode */
.main-layout.collapsed .conversation-action-strip {
    width: 40px !important;
    height: 40px !important;
    padding: 0 !important;
    margin: 0.5rem 0 !important;
    background: transparent !important;
    border: none !important;
    justify-content: center !important;
    align-items: center !important
    }
.main-layout.collapsed .strip-content, .main-layout.collapsed .strip-arrow, .main-layout.collapsed .strip-title, .main-layout.collapsed .strip-subtitle {
    display: none !important;
    visibility: hidden !important
    }
.main-layout.collapsed .strip-icon {
    width: 36px !important;
    height: 36px !important;
    margin: 0 !important;
    padding: 8px !important;
    background: var(--primary-gradient) !important;
    border-radius: 50% !important;
    color: white !important;
    font-size: 1rem !important;
    box-shadow: var(--shadow-sm) !important
    }
.main-layout.collapsed .conversation-stats {
    display: none !important;
    visibility: hidden !important
    }
.main-layout.collapsed .conversation-list {
    display: none !important;
    visibility: hidden !important
    }
.main-layout.collapsed .new-conversation-card {
    width: 40px !important;
    height: 40px !important;
    padding: 0 !important;
    margin: 0.5rem 0 !important;
    border-radius: 50% !important;
    background: var(--primary-color) !important;
    border: 2px solid var(--primary-color) !important;
    color: white !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important
    }
.main-layout.collapsed .new-conversation-card .session-preview {
    display: none !important
    }
.main-layout.collapsed .new-conversation-card .session-icon {
    background: transparent !important;
    box-shadow: none !important;
    font-size: 1rem !important
    }

/* ========================================
   LEFT NAV COLLAPSED STATE STYLES
   ======================================== */

/* Left nav container when collapsed */
.app-container.collapsed .left-nav,
.main-layout.collapsed .left-nav {
    padding: 12px 6px 12px 6px !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: 12px !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
}

/* Hide profile container text when collapsed */
.app-container.collapsed #leftProfileContainer,
.main-layout.collapsed #leftProfileContainer {
    display: none !important;
}

/* Hide categories section and show only icons when collapsed */
.app-container.collapsed .categories-section,
.main-layout.collapsed .categories-section {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: 10px !important;
    width: 100% !important;
    padding-top: 0 !important;
    margin-top: -25px !important;
}

/* Home button hidden when collapsed */
.app-container.collapsed .left-nav .home-btn,
.main-layout.collapsed .left-nav .home-btn {
    display: none !important;
}

/* Progress button collapsed */
.app-container.collapsed .left-nav .progress-btn,
.main-layout.collapsed .left-nav .progress-btn {
    width: 36px !important;
    height: 36px !important;
    min-height: 36px !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    margin: 0 !important;
    border-radius: 50% !important;
    background: transparent !important;
    border: none !important;
}

/* New Chat Icon - only visible when collapsed */
.collapsed-new-chat-icon {
    display: none !important;
}

.app-container.collapsed .categories-section .collapsed-new-chat-icon,
.main-layout.collapsed .categories-section .collapsed-new-chat-icon {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 36px !important;
    height: 36px !important;
    margin: 0 !important;
    cursor: pointer !important;
    flex-shrink: 0 !important;
    border-radius: 50% !important;
    background: transparent !important;
    color: var(--text-primary, #374151) !important;
    font-size: 1rem !important;
    transition: transform 0.2s ease, color 0.2s ease !important;
}

.app-container.collapsed .categories-section .collapsed-new-chat-icon:hover,
.main-layout.collapsed .categories-section .collapsed-new-chat-icon:hover {
    transform: scale(1.15) !important;
    color: var(--primary-color, #667eea) !important;
    background: rgba(102, 126, 234, 0.15) !important;
    border-radius: 50% !important;
    box-shadow: 0 0 12px rgba(102, 126, 234, 0.3) !important;
}

/* Category cards collapsed */
.app-container.collapsed .left-nav .category-card,
.main-layout.collapsed .left-nav .category-card {
    width: 36px !important;
    height: 36px !important;
    min-height: 36px !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 50% !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    background: transparent !important;
    border: none !important;
}

/* Option items collapsed */
.app-container.collapsed .left-nav .option-item,
.main-layout.collapsed .left-nav .option-item {
    width: 36px !important;
    height: 36px !important;
    min-height: 36px !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 50% !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    background: transparent !important;
    border: none !important;
}

/* Collapsible sections collapsed */
.app-container.collapsed .left-nav .collapsible-section,
.main-layout.collapsed .left-nav .collapsible-section {
    width: 100% !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
}

/* Collapsible headers collapsed */
.app-container.collapsed .left-nav .collapsible-header,
.main-layout.collapsed .left-nav .collapsible-header {
    width: 36px !important;
    height: 36px !important;
    min-height: 36px !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 50% !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    background: transparent !important;
    border: none !important;
}

/* Hide text and arrow in collapsed collapsible headers */
.app-container.collapsed .left-nav .collapsible-header > span:not(.icon),
.app-container.collapsed .left-nav .collapsible-header > .collapsible-arrow,
.main-layout.collapsed .left-nav .collapsible-header > span:not(.icon),
.main-layout.collapsed .left-nav .collapsible-header > .collapsible-arrow {
    display: none !important;
}

/* Hide collapsible content when collapsed */
.app-container.collapsed .left-nav .collapsible-content,
.main-layout.collapsed .left-nav .collapsible-content {
    display: none !important;
}

/* Hide nav-collapsible-container items label when collapsed */
.app-container.collapsed .nav-collapsible-container,
.main-layout.collapsed .nav-collapsible-container {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: 12px !important;
    width: 100% !important;
}

/* Hide all text spans in collapsed state */
.app-container.collapsed .left-nav .progress-btn > span:not(.icon),
.app-container.collapsed .left-nav .category-card > span:not(.icon),
.app-container.collapsed .left-nav .option-item > span:not(.icon),
.app-container.collapsed .left-nav .collapsible-header > span:not(.icon),
.main-layout.collapsed .left-nav .progress-btn > span:not(.icon),
.main-layout.collapsed .left-nav .category-card > span:not(.icon),
.main-layout.collapsed .left-nav .option-item > span:not(.icon),
.main-layout.collapsed .left-nav .collapsible-header > span:not(.icon) {
    display: none !important;
}

/* Make icons circular and properly sized when collapsed */
.app-container.collapsed .left-nav .icon,
.main-layout.collapsed .left-nav .icon {
    width: 36px !important;
    height: 36px !important;
    min-width: 36px !important;
    min-height: 36px !important;
    border-radius: 50% !important;
    background: transparent !important;
    color: var(--text-primary, #374151) !important;
    box-shadow: none !important;
    font-size: 1rem !important;
    margin: 0 !important;
}

/* Hide nav views except main when collapsed */
.app-container.collapsed .left-nav .nav-view:not(.active),
.main-layout.collapsed .left-nav .nav-view:not(.active) {
    display: none !important;
}

/* Hide view headers and back buttons when collapsed */
.app-container.collapsed .left-nav .view-header,
.app-container.collapsed .left-nav .back-btn,
.main-layout.collapsed .left-nav .view-header,
.main-layout.collapsed .left-nav .back-btn {
    display: none !important;
}

/* Sidebar logo when collapsed */
.app-container.collapsed .sidebar-logo,
.main-layout.collapsed .sidebar-logo {
    display: none !important;
}

/* Options list when collapsed */
.app-container.collapsed .left-nav .options-list,
.main-layout.collapsed .left-nav .options-list {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: 12px !important;
    width: 100% !important;
}

/* Hover effect for collapsed buttons */
.app-container.collapsed .left-nav .progress-btn:hover,
.app-container.collapsed .left-nav .category-card:hover,
.app-container.collapsed .left-nav .option-item:hover,
.app-container.collapsed .left-nav .collapsible-header:hover,
.main-layout.collapsed .left-nav .progress-btn:hover,
.main-layout.collapsed .left-nav .category-card:hover,
.main-layout.collapsed .left-nav .option-item:hover,
.main-layout.collapsed .left-nav .collapsible-header:hover {
    background: transparent !important;
}

/* Hover effect for icons when collapsed */
.app-container.collapsed .left-nav .progress-btn:hover .icon,
.app-container.collapsed .left-nav .category-card:hover .icon,
.app-container.collapsed .left-nav .option-item:hover .icon,
.app-container.collapsed .left-nav .collapsible-header:hover .icon,
.main-layout.collapsed .left-nav .progress-btn:hover .icon,
.main-layout.collapsed .left-nav .category-card:hover .icon,
.main-layout.collapsed .left-nav .option-item:hover .icon,
.main-layout.collapsed .left-nav .collapsible-header:hover .icon {
    transform: scale(1.1);
    background: transparent !important;
    box-shadow: none !important;
}


/* Avatar Mode Selection Container */
.avatar-mode-selection-container {
    padding: 2rem;
    background: var(--surface-elevated);
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

/* Avatar Mode Header Row - for title and back button */
.avatar-mode-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    width: 100%;
}

.avatar-mode-header-spacer {
    width: 160px;
    flex-shrink: 0;
}

.avatar-mode-header-row h2 {
    flex: 1;
    text-align: center;
    margin: 0 !important;
}

/* Back to Dashboard Button */
.back-to-dashboard-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--surface-color, #ffffff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    color: var(--text-primary, #374151);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.back-to-dashboard-btn:hover {
    background: var(--primary-color, #667eea);
    color: white;
    border-color: var(--primary-color, #667eea);
}

.back-to-dashboard-btn i {
    font-size: 0.85rem;
}

.avatar-mode-selection-container h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.avatar-mode-selection-container > p {
    font-size: 1rem;
    color: var(--text-muted);
    margin: 0 0 2rem 0;
}

.mode-options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .mode-options-grid {
        grid-template-columns: 1fr;
    }
}

.mode-option-card {
    background: var(--surface-color);
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-xl, 16px);
    padding: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.mode-option-card:hover {
    border-color: var(--primary-color, #667eea);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.15);
}

.mode-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.mode-icon.screenshare-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.mode-option-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0.5rem 0;
}

.mode-description {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
    flex: 1;
}

.mode-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
    margin: 0.5rem 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.feature-item i {
    color: #10b981;
    font-size: 0.9rem;
}

.mode-select-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.mode-select-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(102, 126, 234, 0.3);
}

.mode-select-btn i {
    transition: transform 0.2s ease;
}

.mode-option-card:hover .mode-select-btn i {
    transform: translateX(4px);
}

/* Back to Mode Selection Button */
.back-to-mode-btn {
    background: transparent;
    border: 1px solid var(--border-color, #e2e8f0);
    color: var(--text-secondary, #64748b);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    margin-bottom: 1.5rem;
}

.back-to-mode-btn:hover {
    background: var(--surface-elevated, #f8fafc);
    border-color: var(--primary-color, #667eea);
    color: var(--primary-color, #667eea);
}

/* ========================================
   COLLAPSED LOGO CONTAINER STYLES
   ======================================== */

/* Collapsed logo container - hidden by default (when expanded) */
.collapsed-logo-container {
    display: none;
    position: absolute;
    top: 25px;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10001;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    background: transparent;
    box-shadow: none;
    border: none;
}

/* Show collapsed logo only when sidebar is collapsed */
.app-container.collapsed .collapsed-logo-container,
.main-layout.collapsed .collapsed-logo-container {
    display: flex !important;
}

/* Logo image in collapsed state */
.collapsed-logo-container .collapsed-logo-img {
    width: 22px;
    height: 22px;
    object-fit: contain;
    border-radius: 4px;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Arrow icon - slides in from left on hover */
.collapsed-logo-container .collapsed-expand-arrow {
    position: absolute;
    left: -10px;
    opacity: 0;
    font-size: 9px;
    color: var(--primary-color, #667eea);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hover state - logo slides right, arrow slides in */
.collapsed-logo-container:hover .collapsed-logo-img {
    transform: translateX(4px);
}

.collapsed-logo-container:hover .collapsed-expand-arrow {
    left: 2px;
    opacity: 1;
}

.collapsed-logo-container:hover {
    background: transparent;
    box-shadow: none;
}

/* ========================================
   END LEFT NAV COLLAPSED STATE STYLES
   ======================================== */

.conversation-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: var(--transition-normal)
    }

/* Left Panel Header Row - AI Tutor + Close Button */
#leftPanelHeaderRow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    margin-bottom: 8px;
    border-bottom: 1px solid #f0f0f0;
}

#leftPanelHeaderRow .left-panel-edge-btn:hover {
    background: #f3f4f6 !important;
    border-color: #d1d5db !important;
    color: #111827 !important;
}

/* Hide header row when collapsed */
.app-container.collapsed #leftPanelHeaderRow,
.main-layout.collapsed #leftPanelHeaderRow {
    display: none !important;
}

.conversation-header {
    padding: 0.5rem 1.25rem;
    display: none;
    align-items: center;
    justify-content: space-between;
    background: transparent;
    position: relative;
    padding-left: 3.5rem;
    min-height: auto;
    /* Make room for toggle button on the left */
    }
/* Gradient line removed to prevent overlap with collapsed logo */
.conversation-header-left {
    display: flex;
    align-items: center;
    gap: 1rem
    }
.conversation-title {
    display: flex;
    align-items: center;
    gap: 0.75rem
    }
.conversation-title i {
    color: var(--primary-color);
    font-size: 1.25rem
    }
.conversation-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0
    }
.conversation-toggle {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    position: absolute;
    top: 1.5rem;
    left: 1rem;
    z-index: 100
    }
.main-layout.collapsed .conversation-toggle {
    left: 12px;
    top: 50%;
    transform: translatey(-50%);
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md)
    }
.conversation-toggle:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm)
    }
.main-layout.collapsed .conversation-toggle:hover {
    background: var(--secondary-color);
    box-shadow: var(--shadow-md)
    }
.conversation-toggle i {
    font-size: 1rem;
    transition: var(--transition-fast)
    }
.new-chat-btn {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-sm);
    white-space: nowrap
    }
.new-chat-btn:hover {
    transform: translatey(-2px);
    box-shadow: var(--shadow-md)
    }
.new-chat-btn i {
    font-size: 1rem
    }
.conversation-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.25rem;
    background: var(--surface-color)
    }
/* New conversation card styling - matches session cards but with distinctive style */
.new-conversation-card {
    height: 48px !important;
    max-height: 48px !important;
    min-height: 48px !important;
    padding: 8px 12px !important;
    margin: 0 !important;
    margin-bottom: 8px !important;
    border: 2px dashed var(--primary-color) !important;
    border-radius: 6px !important;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(102, 126, 234, 0.02) 100%) !important;
    display: block !important;
    font-size: 14px !important;
    line-height: 20px !important;
    position: relative !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    box-shadow: 0 1px 3px rgba(102, 126, 234, 0.1) !important
    }
.new-conversation-card:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.12) 0%, rgba(102, 126, 234, 0.08) 100%) !important;
    border-color: var(--primary-color) !important;
    border-style: solid !important;
    transform: translatey(-1px) !important;
    box-shadow: 0 3px 12px rgba(102, 126, 234, 0.2) !important
    }
.new-conversation-card .session-content {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    width: 100% !important;
    height: 100% !important;
    margin: 0 !important;
    padding: 0 !important
    }
.new-conversation-card .session-icon {
    width: 24px !important;
    height: 24px !important;
    background: var(--primary-gradient) !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    color: white !important;
    font-size: 12px !important;
    flex-shrink: 0 !important
    }
.new-conversation-card .session-preview {
    font-size: 14px !important;
    line-height: 20px !important;
    color: var(--primary-color) !important;
    font-weight: 600 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    white-space: nowrap !important;
    text-overflow: ellipsis !important;
    flex: 1 !important
    }
.new-conversation-card:hover .session-preview {
    color: var(--primary-color) !important
    }
/* BIGGER CARDS: Clear borders and better text spacing */
.conversation-list .session-card {
    height: 60px !important;
    max-height: 60px !important;
    min-height: 60px !important;
    padding: 12px !important;
    margin: 0 !important;
    margin-bottom: 3px !important;
    border: none !important;
    border-radius: 6px !important;
    background: rgba(255, 255, 255, 0.9) !important;
    display: block !important;
    font-size: 14px !important;
    line-height: 20px !important;
    border-left: none !important;
    position: relative !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1) !important
    }
.conversation-list .session-card:hover {
    background: rgba(102, 126, 234, 0.08) !important;
    border-left-color: transparent !important;
    border-color: transparent !important;
    transform: translatex(2px) !important;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.15) !important
    }
.conversation-list .session-card.active {
    background: rgba(102, 126, 234, 0.12) !important;
    border-left-color: transparent !important;
    border-color: transparent !important;
    transform: translatex(4px) !important;
    box-shadow: 0 3px 12px rgba(102, 126, 234, 0.2) !important
    }
.conversation-list .session-content {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    height: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    gap: 8px !important
    }
/* Session message icon styling - override for horizontal layout */
.conversation-list .session-message-icon {
    position: static !important;
    display: flex !important;
    align-items: center !important;
    justify-content: flex-start !important;
    width: auto !important;
    height: auto !important;
    background: transparent !important;
    border-radius: 0 !important;
    flex-shrink: 0 !important;
    margin-right: 0 !important;
    gap: 4px !important;
    color: var(--primary-color) !important;
    font-size: 14px !important
    }
.session-message-icon i {
    font-size: 12px !important;
    color: var(--primary-color) !important
    }
/* Session card layout - horizontal alignment */
.session-content {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    height: 100% !important;
    gap: 8px !important;
    padding: 0 !important;
    margin: 0 !important
    }
.session-message-icon {
    display: flex !important;
    align-items: center !important;
    gap: 4px !important;
    flex-shrink: 0 !important;
    color: var(--primary-color) !important;
    font-size: 14px !important
    }
.message-count {
    background: var(--primary-color) !important;
    color: white !important;
    font-size: 10px !important;
    font-weight: 600 !important;
    min-width: 18px !important;
    height: 18px !important;
    border-radius: 9px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 0 4px !important;
    line-height: 1 !important
    }
.conversation-list .session-preview {
    font-size: 14px !important;
    line-height: 20px !important;
    color: #333 !important;
    font-weight: 500 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    white-space: nowrap !important;
    text-overflow: ellipsis !important;
    flex: 1 !important;
    display: block !important;
    min-width: 0 !important
    }
.conversation-list .session-card:hover .session-preview {
    color: var(--primary-color) !important;
    font-weight: 600 !important
    }
.conversation-list .session-card.active .session-preview {
    color: var(--primary-color) !important;
    font-weight: 600 !important
    }
.conversation-list .session-time {
    font-size: 11px !important;
    color: #666 !important;
    position: static !important;
    right: unset !important;
    top: unset !important;
    transform: none !important;
    font-weight: 500 !important;
    background: transparent !important;
    padding: 0 !important;
    border-radius: 0 !important;
    min-width: 40px !important;
    text-align: right !important;
    border: none !important;
    flex-shrink: 0 !important;
    margin-left: auto !important;
    white-space: nowrap !important
    }
.conversation-list .session-card:hover .session-time {
    color: var(--primary-color) !important;
    font-weight: 600 !important
    }
.conversation-list .session-card.active .session-time {
    color: var(--primary-color) !important;
    font-weight: 600 !important
    }
/* NEW CONVERSATION CARD - Styled like session cards */
.new-conversation-card {
    height: 48px !important;
    max-height: 48px !important;
    min-height: 48px !important;
    padding: 8px 12px !important;
    margin: 0 0.25rem !important;
    margin-bottom: 8px !important;
    border: 2px dashed var(--primary-color) !important;
    border-radius: 6px !important;
    background: rgba(102, 126, 234, 0.03) !important;
    display: block !important;
    font-size: 14px !important;
    line-height: 20px !important;
    position: relative !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    box-shadow: 0 1px 3px rgba(102, 126, 234, 0.1) !important;
    width: calc(100% - 0.5rem) !important
    }
.new-conversation-card:hover {
    background: rgba(102, 126, 234, 0.08) !important;
    border-style: solid !important;
    transform: translatey(-1px) !important;
    box-shadow: 0 3px 8px rgba(102, 126, 234, 0.2) !important
    }
.new-conversation-card:active {
    transform: translatey(0) !important;
    box-shadow: 0 1px 3px rgba(102, 126, 234, 0.15) !important
    }
.new-conversation-card .session-content {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    height: 100% !important;
    margin: 0 !important;
    padding: 0 !important
    }
.new-conversation-card .session-preview {
    font-size: 14px !important;
    line-height: 20px !important;
    color: var(--primary-color) !important;
    font-weight: 600 !important;
    margin: 0 !important;
    padding: 0 !important;
    text-align: center !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important
    }
.new-conversation-card:hover .session-preview {
    color: var(--primary-color) !important;
    font-weight: 700 !important
    }
/* Move conversation title icon and text to the right */
.conversation-title {
    margin-left: 1rem !important
    }
/* Conversation Action Strips */
.conversation-action-strip {
    padding: 1rem 1.25rem;
    background: var(--surface-elevated);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden
    }
.conversation-action-strip::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: var(--primary-gradient);
    transition: var(--transition-normal)
    }
.conversation-action-strip:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    transform: translatex(4px)
    }
.conversation-action-strip:hover::before {
    width: 4px
    }
.strip-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast)
    }
.conversation-action-strip:hover .strip-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-md)
    }
.strip-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem
    }
.strip-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2
    }
.strip-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.2
    }
.strip-arrow {
    color: var(--text-muted);
    font-size: 0.8rem;
    transition: var(--transition-fast);
    flex-shrink: 0
    }
.conversation-action-strip:hover .strip-arrow {
    color: var(--primary-color);
    transform: translatex(4px)
    }
/* Specific strip styles */
.avatar-strip .strip-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%)
    }
.focus-strip .strip-icon {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%)
    }
.conversation-stats {
    padding: 1rem 1.25rem;
    background: var(--border-light);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted)
    }
.stats-item {
    display: flex;
    align-items: center;
    gap: 0.5rem
    }
.stats-item i {
    color: var(--primary-color);
    font-size: 1rem
    }
/* Minimalistic Strip Design for Session Cards */
.session-card {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0.375rem 0.75rem;
    margin-bottom: 0.125rem;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-height: 2.25rem;
    border-left: 2px solid transparent
    }
.session-card::before {
    display: none
    }
.session-card:hover {
    background: rgba(102, 126, 234, 0.04);
    border-radius: var(--border-radius-sm);
    border-left-color: var(--primary-color)
    }
.session-card.active {
    background: rgba(102, 126, 234, 0.06);
    border-radius: var(--border-radius-sm);
    border-left-color: var(--primary-color)
    }
.session-header {
    display: none
    }
.session-icon {
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.65rem;
    flex-shrink: 0;
    opacity: 0.9
    }
.session-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.125rem
    }
.session-preview {
    font-size: 0.8rem;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.2;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis
    }
.session-card:hover .session-preview {
    color: var(--primary-color)
    }
.session-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.65rem;
    color: var(--text-muted);
    margin: 0
    }
.session-time {
    display: flex;
    align-items: center;
    gap: 0.25rem
    }
.session-time i {
    color: var(--text-muted);
    font-size: 0.55rem
    }
.session-count {
    background: var(--text-muted);
    color: white;
    padding: 0.125rem 0.4rem;
    border-radius: 0.75rem;
    font-size: 0.55rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    opacity: 0.8
    }
.session-count i {
    font-size: 0.5rem
    }
.session-card:hover .session-count {
    background: var(--primary-color);
    opacity: 1
    }
.no-sessions {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-muted)
    }
.no-sessions i {
    font-size: 3rem;
    color: var(--border-color);
    margin-bottom: 1rem;
    display: block
    }
.no-sessions h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 0 0 0.5rem 0
    }
.no-sessions p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.5
    }
/* Chat Area */
.chat-section {
    display: flex;
    flex-direction: column;
    background: var(--surface-color);
    position: relative;
    height: 100% !important;
    min-height: 0 !important;
    overflow: hidden;
    z-index: 1
    }
.chat-header {
    background: var(--primary-gradient);
    color: white;
    padding: 0.75rem 2rem;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden
    }
.chat-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,<svg width=\"60\" height=\"60\" viewBox=\"0 0 60 60\" xmlns=\"http://www.w3.org/2000/svg\"><g fill=\"none\" fill-rule=\"evenodd\"><g fill=\"%23ffffff\" fill-opacity=\"0.1\"><path d=\"M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2V6h4V4H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z\"/></g></g></svg>") repeat;
    opacity: 0.1
    }
.chat-header-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%
    }
.chat-logo {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    border: 2px solid rgba(255, 255, 255, 0.2)
    }
.chat-title {
    flex: 1
    }
.chat-title h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 0.25rem 0;
    letter-spacing: -0.025em
    }
.chat-subtitle {
    font-size: 0.875rem;
    opacity: 0.9;
    margin: 0;
    font-weight: 400
    }
.chat-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    backdrop-filter: blur(10px)
    }
.status-indicator {
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite
    }
.status-indicator.offline {
    background: #ef4444;
    animation: none
    }
.status-text {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em
    }
/* Messages Area */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    background: linear-gradient(180deg, var(--background-color) 0%, var(--surface-color) 100%);
    min-height: 0;
    /* Allow flex item to shrink */
    max-height: 100%;
    /* Prevent exceeding container */
    scroll-behavior: smooth;
    /* Add smooth scrolling */
    min-height: 300px;
    /* Ensures minimum usable height */
    }
.message {
    display: flex;
    gap: 0.75rem;
    animation: fadeInUp 0.4s ease-out;
    max-width: 85%
    }
.message.user-message {
    align-self: flex-end;
    flex-direction: row-reverse
    }
.message.bot-message {
    align-self: flex-start
    }
.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: var(--shadow-sm)
    }
.user-message .message-avatar {
    background: var(--chat-user-bg);
    color: white
    }
.bot-message .message-avatar {
    background: var(--surface-elevated);
    color: var(--primary-color);
    border: 2px solid var(--border-light)
    }
/* Bot avatar specific styling for tutoring theme */
.bot-message .message-avatar i {
    font-size: 1rem
    }
.message-bubble {
    background: var(--surface-elevated);
    border-radius: var(--border-radius-lg);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-sm);
    position: relative;
    border: 1px solid var(--border-light);
    transition: var(--transition-normal)
    }
.user-message .message-bubble {
    background: var(--chat-user-bg);
    color: white;
    border: none;
    border-bottom-right-radius: var(--border-radius-sm)
    }
.bot-message .message-bubble {
    border-bottom-left-radius: var(--border-radius-sm)
    }
.message-bubble:hover {
    box-shadow: var(--shadow-md);
    transform: translatey(-1px)
    }
.message-content {
    line-height: 1.6;
    word-wrap: break-word
    }
.message-content strong {
    font-weight: 600
    }
.message-content h1, .message-content h2, .message-content h3 {
    color: var(--text-primary);
    font-weight: 700;
    margin: 1rem 0 0.5rem 0
    }
.message-content h3 {
    font-size: 1.1rem;
    border-bottom: 2px solid var(--border-light);
    padding-bottom: 0.5rem
    }
.message-content p {
    margin: 0.75rem 0;
    line-height: 1.6
    }
.message-content ul {
    margin: 0.75rem 0;
    padding-left: 1.5rem;
    list-style-type: disc
    }
.message-content li {
    margin: 0.25rem 0;
    line-height: 1.5
    }
.message-content a {
    color: var(--primary-color) !important;
    text-decoration: underline !important;
    font-weight: 500 !important;
    transition: var(--transition-fast);
    cursor: pointer
    }
.message-content a:hover {
    color: var(--secondary-color) !important;
    text-decoration: none !important;
    background-color: rgba(102, 126, 234, 0.1);
    padding: 0.1rem 0.2rem;
    border-radius: 0.25rem
    }
.user-message .message-content a {
    color: rgba(255, 255, 255, 0.9) !important
    }
.user-message .message-content a:hover {
    color: white !important;
    background-color: rgba(255, 255, 255, 0.2)
    }
.message-content code {
    background: var(--border-light);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-family: "Courier New", monospace;
    font-size: 0.875em;
    color: var(--text-primary)
    }
.message-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    background: var(--surface-elevated);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm)
    }
.message-content th, .message-content td {
    padding: 0.75rem 1rem 0.75rem 4.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    line-height: 1.5
    }
.message-content th {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 2px solid var(--primary-color);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em
    }
.message-content td {
    color: var(--text-secondary);
    font-size: 0.875rem
    }
.message-content tr:hover {
    background: rgba(102, 126, 234, 0.05)
    }
.message-content tr:last-child td {
    border-bottom: none
    }
.user-message .message-content table {
    background: rgba(255, 255, 255, 0.1)
    }
.user-message .message-content th {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-bottom-color: rgba(255, 255, 255, 0.5)
    }
.user-message .message-content td {
    color: rgba(255, 255, 255, 0.9);
    border-bottom-color: rgba(255, 255, 255, 0.2)
    }
.user-message .message-content tr:hover {
    background: rgba(255, 255, 255, 0.1)
    }
.message-timestamp {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    opacity: 0.7
    }
.user-message .message-timestamp {
    color: rgba(255, 255, 255, 0.8)
    }
/* Typing Indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1rem 0;
    animation: fadeIn 0.3s ease-out
    }
.typing-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--surface-elevated);
    color: var(--primary-color);
    border: 2px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600
    }
.typing-avatar i {
    font-size: 1rem
    }
.typing-bubble {
    background: var(--surface-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    border-bottom-left-radius: var(--border-radius-sm);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: 0.25rem
    }
.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out
    }
.typing-dot:nth-child(2) {
    animation-delay: 0.16s
    }
.typing-dot:nth-child(3) {
    animation-delay: 0.32s
    }
/* Input Area */
.chat-input {
    padding: 1.5rem 2rem;
    background: var(--surface-elevated);
    border-top: 1px solid var(--border-light);
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-shrink: 0;
    /* Prevent input from shrinking */
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
    z-index: 100;
    position: relative;
    overflow: visible
    }
.input-wrapper {
    flex: 1;
    position: relative;
    overflow: visible !important;
    z-index: 1000
    }
.message-input {
    width: 100%;
    min-height: 2.75rem;
    max-height: 8rem;
    padding: 0.75rem 1rem 0.75rem 4.5rem !important;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    resize: none;
    font-family: inherit;
    font-size: 0.875rem;
    line-height: 1.5;
    background: var(--surface-color);
    transition: var(--transition-fast);
    outline: none
    }
.message-input:focus {
    border-color: var(--primary-color) !important;
    outline: 2px solid var(--primary-color) !important;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15) !important;
    }
.message-input::placeholder {
    color: var(--text-muted)
    }
/* Plus Menu Button */
.plus-menu-button {
    position: absolute;
    left: 0.5rem;
    bottom: 0.5rem;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3)
    }
.plus-menu-button:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4)
    }
.plus-menu-button i {
    font-size: 1rem;
    transition: transform 0.3s ease
    }
/* Plus Menu */
.plus-menu {
    position: absolute;
    left: 0.5rem;
    bottom: 3.5rem;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    border: 2px solid #e2e8f0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translatey(10px);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 9999 !important;
    overflow: visible;
    pointer-events: none;
    display: block
    }
.plus-menu.show {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translatey(0) !important;
    pointer-events: auto !important;
    display: block !important
    }
.plus-menu-item {
    padding: 0.875rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500
    }
.plus-menu-item:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%)
    }
.plus-menu-item i {
    font-size: 1.1rem;
    color: var(--primary-color);
    width: 1.5rem;
    text-align: center
    }
.plus-menu-item span {
    flex: 1
    }
.plus-menu-item:first-child {
    border-top-left-radius: var(--border-radius-lg);
    border-top-right-radius: var(--border-radius-lg)
    }
.plus-menu-item:last-child {
    border-bottom-left-radius: var(--border-radius-lg);
    border-bottom-right-radius: var(--border-radius-lg)
    }
/* Video Generation Modal */
.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center
    }
.video-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease
    }
.video-modal-content {
    position: relative;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 850px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    animation: slideUp 0.3s ease;
    z-index: 10001
    }
.video-modal-content.video-success-modal {
    max-width: 550px
    }
.video-modal-header.video-success-header {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%)
    }
.video-modal-icon.video-success-icon {
    background: rgba(255, 255, 255, 0.2);
    animation: successPulse 2s ease-in-out infinite
    }
@keyframes successPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.4);
        } 50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(255, 255, 255, 0);
        }
    }
@keyframes fadeIn {
    from {
        opacity: 0;
        } to {
        opacity: 1;
        }
    }
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
        } to {
        opacity: 1;
        transform: translateY(0);
        }
    }
.video-modal-header {
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
    text-align: center;
    color: white
    }
.video-modal-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem auto;
    font-size: 1.75rem
    }
.video-modal-title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: white
    }
.video-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: white;
    font-size: 1.25rem;
    transition: all 0.2s ease
    }
.video-modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg)
    }
.video-modal-body {
    padding: 2rem
    }
.video-modal-description {
    font-size: 1rem;
    line-height: 1.6;
    color: #4a5568;
    margin: 0 0 1.5rem 0
    }
.video-modal-features {
    display: flex;
    flex-direction: column;
    gap: 1rem
    }
.video-feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: linear-gradient(135deg, #f8faff 0%, #fff 100%);
    border-radius: 12px;
    border-left: 4px solid #667eea
    }
.video-feature-item i {
    font-size: 1.25rem;
    color: #667eea;
    width: 24px;
    text-align: center
    }
.video-feature-item span {
    font-size: 0.9rem;
    color: #4a5568;
    line-height: 1.5
    }
.video-feature-item strong {
    color: #667eea;
    font-weight: 600
    }
.video-modal-footer {
    padding: 1.5rem 2rem;
    background: #f8faff;
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    border-top: 1px solid #e2e8f0;
    position: sticky;
    bottom: 0;
    z-index: 10
    }
.video-modal-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease
    }
.video-modal-btn-cancel {
    background: white;
    color: #4a5568;
    border: 2px solid #e2e8f0
    }
.video-modal-btn-cancel:hover {
    background: #f8faff;
    border-color: #cbd5e0;
    transform: translatey(-2px)
    }
.video-modal-btn-ok {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white
    }
.video-modal-btn-ok:hover {
    transform: translatey(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4)
    }
.video-modal-btn-ok:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none
    }
.video-modal-btn-ok:disabled:hover {
    transform: none;
    box-shadow: none
    }
/* Conversation Selection Styles */
.video-selection-body {
    padding: 0;
    max-height: calc(90vh - 200px);
    display: flex;
    flex-direction: column;
    overflow: hidden
    }
.selection-info-panel {
    padding: 1rem 1.5rem 0.5rem 1.5rem;
    flex-shrink: 0;
    background: #fafbff;
    border-bottom: 1px solid #e2e8f0
    }
.selection-header {
    display: flex;
    flex-direction: column;
    gap: 0.4rem
    }
.selection-header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem
    }
/* Select All checkbox */
.select-all-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
    font-size: 0.82rem;
    font-weight: 600;
    color: #4a5568
    }
.select-all-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #667eea;
    cursor: pointer;
    margin: 0
    }
.selection-counter {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem
    }
.selection-counter #selectedCount,
.selection-counter #pptSelectedCount {
    font-size: 0.85rem;
    font-weight: 700
    }
.video-validation-msg {
    width: 100%;
    font-size: 0.85rem;
    font-weight: 500;
    margin: 0;
    padding: 0.4rem 0.75rem;
    border-radius: 8px;
    transition: all 0.3s ease
    }
.video-validation-msg.valid {
    background: rgba(16, 185, 129, 0.08);
    color: #059669
    }
.video-validation-msg.warning {
    background: rgba(245, 158, 11, 0.08);
    color: #d97706
    }
.video-validation-msg.error {
    background: rgba(239, 68, 68, 0.08);
    color: #dc2626
    }
.word-count-progress {
    width: 100%;
    height: 4px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 0.5rem;
    flex-shrink: 0
    }
.word-count-progress-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.4s ease, background-color 0.3s ease;
    min-width: 2px
    }
.video-selection-body .video-validation-msg {
    flex-shrink: 0
    }
.video-selection-body .conversation-list {
    flex: 1 1 auto;
    overflow-y: auto;
    min-height: 0;
    padding: 0.75rem 1.5rem 0.75rem 1.5rem
    }
.conversation-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem
    }
.loading-conversations {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 3rem;
    color: #667eea;
    font-size: 1rem
    }
.loading-conversations i {
    font-size: 1.5rem
    }
.conversation-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
    position: relative
    }
.conversation-item:hover {
    border-color: #667eea;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.12)
    }
.conversation-item.selected {
    border-color: #10b981;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(255, 255, 255, 1) 100%);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2)
    }
.conversation-checkbox {
    width: 24px;
    height: 24px;
    min-width: 24px;
    border: 2px solid #cbd5e0;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    background: white
    }
.conversation-item:hover .conversation-checkbox {
    border-color: #667eea
    }
.conversation-item.selected .conversation-checkbox {
    background: #10b981;
    border-color: #10b981
    }
.conversation-checkbox i {
    color: white;
    font-size: 0.875rem;
    display: none !important;
    opacity: 0;
    visibility: hidden;
    }
.conversation-item.selected .conversation-checkbox i {
    display: block !important;
    opacity: 1;
    visibility: visible;
    }
.conversation-content {
    flex: 1
    }
.conversation-role {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.3rem
    }
.role-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px
    }
.role-badge.user {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6
    }
.role-badge.assistant {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6
    }
.conversation-text {
    color: #4a5568;
    line-height: 1.5;
    font-size: 0.85rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-wrap: break-word
    }
.conversation-item.expanded .conversation-text {
    -webkit-line-clamp: unset;
    display: block;
    white-space: pre-wrap
    }
.conversation-expand-btn {
    font-size: 0.72rem;
    color: #667eea;
    cursor: pointer;
    font-weight: 600;
    margin-top: 0.2rem;
    display: none
    }
.conversation-expand-btn:hover {
    color: #764ba2;
    text-decoration: underline
    }
.conversation-item.truncated .conversation-expand-btn {
    display: inline-block
    }
.conversation-meta {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 0.6rem;
    padding-top: 0.4rem;
    border-top: 1px solid #f1f5f9
    }
.conversation-timestamp {
    font-size: 0.72rem;
    color: #9ca3af;
    display: flex;
    align-items: center;
    gap: 0.3rem
    }
.conversation-timestamp i {
    font-size: 0.65rem
    }
.conversation-word-count {
    font-size: 0.72rem;
    color: #b0b8c4;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    white-space: nowrap
    }
.conversation-word-count i {
    font-size: 0.65rem
    }
.conversation-item.disabled {
    opacity: 0.5;
    cursor: not-allowed
    }
.conversation-item.disabled:hover {
    border-color: #e2e8f0;
    box-shadow: none;
    transform: none
    }
.no-conversations {
    text-align: center;
    padding: 3rem;
    color: #9ca3af
    }
.no-conversations i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #cbd5e0
    }
.send-button {
    background: var(--primary-gradient);
    color: white;
    border: none;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    box-shadow: var(--shadow-sm)
    }
.send-button:hover {
    transform: translatey(-2px) scale(1.05);
    box-shadow: var(--shadow-md)
    }
.send-button:active {
    transform: translatey(0) scale(0.98)
    }
/* Microphone Button */
.microphone-button {
    background: var(--surface-color);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    margin-right: 0.5rem;
    box-shadow: var(--shadow-sm)
    }
.microphone-button:hover {
    background: var(--primary-color);
    color: white;
    transform: translatey(-2px);
    box-shadow: var(--shadow-md)
    }
.microphone-button:active, .microphone-button:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15)
    }
.microphone-button.recording {
    background: var(--primary-gradient);
    color: #fff;
    border-color: var(--primary-gradient);
    animation: pulse 1.2s infinite
    }
/* Microphone Button: processing state */
.microphone-button.processing {
    background: var(--surface-color);
    border-color: var(--primary-color);
    color: var(--primary-color);
    position: relative;
    opacity: 0.9
    }
.microphone-button.processing i {
    animation: none;
    /* rely on fa-spin */
    }
.microphone-button.processing:disabled {
    cursor: not-allowed
    }
/* Cancel chip shown while processing */
.stt-cancel-chip {
    background: rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    height: 2rem;
    border-radius: 1rem;
    padding: 0 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    transition: var(--transition-fast)
    }
.stt-cancel-chip i {
    font-size: 0.85rem
    }
.stt-cancel-chip:hover {
    background: var(--surface-hover);
    color: var(--text-primary)
    }
/* TTS Button */
.tts-button {
    background: var(--surface-color);
    border: 2px solid var(--success-color);
    color: var(--success-color);
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    opacity: 0;
    box-shadow: var(--shadow-sm);
    z-index: 10
    }
.message:hover .tts-button {
    opacity: 1
    }
.tts-button:hover {
    background: var(--success-color);
    color: white;
    transform: translatey(-1px);
    box-shadow: var(--shadow-md)
    }
.tts-button:active, .tts-button:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.15)
    }
.tts-button.playing {
    background: var(--success-gradient);
    color: #fff;
    border-color: var(--success-gradient);
    animation: pulse 1.2s infinite
    }
/* Make message bubbles relative for TTS button positioning */
.message-bubble {
    position: relative
    }
/* Voice Chat Button Styles */
#liveVoiceChatBtn {
    background: var(--surface-color);
    border: 2px solid var(--success-color);
    color: var(--success-color);
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    margin-right: 0.5rem;
    box-shadow: var(--shadow-sm)
    }
#liveVoiceChatBtn:hover {
    background: var(--success-color);
    color: white;
    transform: translatey(-2px);
    box-shadow: var(--shadow-md)
    }
#liveVoiceChatBtn:active, #liveVoiceChatBtn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.15)
    }
#liveVoiceChatBtn.active {
    background: var(--success-gradient);
    color: #fff;
    border-color: var(--success-gradient);
    animation: pulse 1.2s infinite
    }
/* Right Panel - Suggestions & Actions */
.suggestions-panel {
    background: var(--surface-color);
    border: none;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 0
    }
.panel-header {
    padding: 1.5rem 1.5rem 0;
    background: linear-gradient(135deg, var(--surface-elevated) 0%, #f8fafc 100%);
    border-bottom: 1px solid var(--border-light);
    position: relative;
    flex-shrink: 0;
    top: 0;
    z-index: 10
    }
.panel-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem
    }
.panel-title i {
    color: var(--primary-color);
    font-size: 1.5rem
    }
.panel-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0 0 1.5rem 0;
    line-height: 1.5
    }
.panel-content {
    padding: 1.5rem;
    flex: 1
    }
.panel-section {
    margin-bottom: 1.5rem;
    background: var(--surface-elevated);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal)
    }
.panel-section:last-child {
    margin-bottom: 0
    }
.panel-section.collapsed {
    margin-bottom: 0.75rem
    }
.section-header {
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border-bottom: 2px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative
    }
.section-header:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%)
    }
.panel-section.collapsed .section-header {
    border-bottom: none;
    padding: 0.75rem 1rem 0.75rem 4.5rem
    }
.section-icon {
    width: 32px;
    height: 32px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.9rem;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0
    }
.panel-section.collapsed .section-icon {
    width: 28px;
    height: 28px;
    font-size: 0.8rem
    }
.section-info {
    flex: 1;
    min-width: 0
    }
.section-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
    line-height: 1.2
    }
.panel-section.collapsed .section-title {
    font-size: 0.85rem;
    margin: 0
    }
.section-subtitle {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600
    }
.panel-section.collapsed .section-subtitle {
    font-size: 0.65rem
    }
.section-toggle {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    transition: var(--transition-fast);
    flex-shrink: 0
    }
.panel-section.collapsed .section-toggle {
    transform: rotate(-90deg)
    }
.section-content {
    padding: 1.25rem;
    transition: var(--transition-normal);
    max-height: 1000px;
    opacity: 1
    }
.panel-section.collapsed .section-content {
    max-height: 0;
    padding: 0 1.25rem;
    opacity: 0;
    overflow: hidden
    }
.section-summary {
    display: none;
    padding: 0.5rem 1rem 0.75rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4
    }
.panel-section.collapsed .section-summary {
    display: block
    }
/* Suggestion Cards */
.suggestion-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr
    }
.suggestion-card {
    background: var(--surface-color);
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: 1.25rem;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    box-shadow: var(--shadow-sm)
    }
.suggestion-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0;
    background: var(--primary-gradient);
    transition: var(--transition-normal)
    }
.suggestion-card:hover {
    transform: translatey(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color)
    }
.suggestion-card:hover::before {
    height: 4px
    }
.suggestion-card.featured {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
    border-color: var(--primary-color)
    }
.suggestion-card.featured::before {
    height: 4px
    }
.card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: var(--transition-fast);
    flex-shrink: 0;
    box-shadow: var(--shadow-sm)
    }
.suggestion-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg)
    }
.card-content {
    flex: 1
    }
.card-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
    line-height: 1.3
    }
.card-description {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.5
    }
/* Quick Actions */
.quick-actions {
    display: grid;
    gap: 0.75rem
    }
.action-item {
    background: var(--surface-color);
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: 1rem 1.25rem;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm)
    }
.action-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: var(--primary-gradient);
    transition: var(--transition-normal)
    }
.action-item:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border-color: var(--primary-color);
    transform: translatex(6px);
    box-shadow: var(--shadow-md)
    }
.action-item:hover::before {
    width: 4px
    }
.action-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm)
    }
.action-content {
    flex: 1
    }
.action-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.4
    }
.action-description {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0.25rem 0 0 0;
    line-height: 1.4
    }
.action-badge {
    background: var(--success-gradient);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-left: auto;
    box-shadow: var(--shadow-sm)
    }
/* Agent Cards */
.agent-card {
    background: var(--surface-color);
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-xl);
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm)
    }
.agent-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(102, 126, 234, 0.05) 100%);
    opacity: 0;
    transition: var(--transition-normal)
    }
.agent-card:hover {
    transform: translatey(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color)
    }
.agent-card:hover::before {
    opacity: 1
    }
.agent-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1
    }
.agent-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    box-shadow: var(--shadow-md);
    flex-shrink: 0
    }
.agent-info {
    flex: 1
    }
.agent-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
    line-height: 1.2
    }
.agent-role {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600
    }
.agent-status {
    background: var(--success-gradient);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1.5rem;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    box-shadow: var(--shadow-sm);
    flex-shrink: 1;
    white-space: nowrap;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis
    }
.agent-status i {
    font-size: 0.75rem;
    animation: pulse 2s infinite
    }
.agent-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    position: relative;
    z-index: 1
    }
.agent-features {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1
    }
.feature-tag {
    background: var(--border-light);
    color: var(--text-muted);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em
    }
/* Specific Agent Colors */
.agent-card.roleplay .agent-avatar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%)
    }
.agent-card.assessment .agent-avatar {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%)
    }
.agent-card.scoring .agent-avatar {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%)
    }
.agent-card.knowledge .agent-avatar {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%)
    }
.agent-card.content .agent-avatar {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%)
    }
.agent-card.certificate .agent-avatar {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%)
    }
/* Forms */
.form-container {
    background: var(--surface-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    margin-top: 1rem;
    animation: fadeInUp 0.4s ease-out
    }
.form-group {
    margin-bottom: 1rem
    }
.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem
    }
.form-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 4.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
    transition: var(--transition-fast);
    background: var(--surface-color)
    }
.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1)
    }
.form-button {
    width: 100%;
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm)
    }
.form-button:hover {
    transform: translatey(-2px);
    box-shadow: var(--shadow-md)
    }
.form-button:active {
    transform: translatey(0)
    }
/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease-out
    }
.modal-content {
    background: var(--surface-elevated);
    margin: 10% auto;
    padding: 2rem;
    border-radius: var(--border-radius-xl);
    width: 90%;
    max-width: 400px;
    box-shadow: var(--shadow-xl);
    animation: fadeInUp 0.4s ease-out
    }
.modal-header {
    text-align: center;
    margin-bottom: 2rem
    }
.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 0.5rem 0
    }
.modal-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0
    }
.error-message {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #dc2626;
    padding: 0.75rem 1rem 0.75rem 4.5rem;
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-left: 4px solid #dc2626
    }
/* Responsive Design */
@media (max-width: 1400px) {
    .main-layout {
        grid-template-columns: 320px 1fr 380px
        }
    .main-layout.collapsed {
        grid-template-columns: 60px 1fr 380px
        }
    }
@media (max-width: 1200px) {
    .main-layout {
        grid-template-columns: 300px 1fr 350px
        }
    .main-layout.collapsed {
        grid-template-columns: 60px 1fr 350px
        }
    }
@media (max-width: 1024px) {
    .main-layout {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr
        }
    .conversation-panel, .suggestions-panel {
        display: none
        }
    .nav-instance {
        padding: 1rem
        }
    .chat-messages {
        padding: 1rem
        }
    .chat-input {
        padding: 1rem
        }
    /* Avatar chat panel responsive */
    .avatar-chat-panel {
        width: 100%;
        right: -100%
        }
    .avatar-chat-panel.open {
        right: 0
        }
    .avatar-grid {
        grid-template-columns: 1fr
        }
    .avatar-video {
        height: 50vh
        }
    }
@media (max-width: 768px) {
    .nav-instance {
        padding: 0.75rem
        }
    .nav-title {
        font-size: 1.1rem
        }
    .chat-header {
        padding: 1rem
        }
    .chat-title h3 {
        font-size: 1.25rem
        }
    .chat-subtitle {
        display: none
        }
    .message {
        max-width: 95%
        }
    .chat-messages {
        padding: 1rem;
        gap: 1rem
        }
    /* Hide avatar chat button text on very small screens */
    .avatar-chat-btn span {
        display: none
        }
    .avatar-chat-btn {
        padding: 0.5rem;
        margin-left: 0.5rem
        }
    }
/* Utility Classes */
.hidden {
    display: none !important
    }
.visible {
    display: block !important
    }
.fade-in {
    animation: fadeIn 0.3s ease-out
    }
.slide-in {
    animation: slideIn 0.4s ease-out
    }
.bounce-in {
    animation: bounce 0.6s ease-out
    }
/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px
    }
::-webkit-scrollbar-track {
    background: var(--border-light);
    border-radius: 3px
    }
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px
    }
/* Focus States */
.focus-ring:focus {
    outline: none !important;
    box-shadow: none !important;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2)
    }
/* Loading States */
.loading {
    position: relative;
    pointer-events: none
    }
.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-light);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite
    }
@keyframes spin {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
        } 100% {
        transform: translate(-50%, -50%) rotate(360deg);
        }
    }
/* Responsive Design for Split Layout */
@media (max-width: 1024px) {
    .chat-messages.avatar-active {
        flex-direction: column
        }
    .avatar-video-section, .links-preview-section {
        width: 100%
        }
    .avatar-video-section {
        height: 40vh;
        border-right: none;
        border-bottom: 1px solid var(--border-light)
        }
    .links-preview-section {
        border-left: none;
        border-top: 1px solid var(--border-light)
        }
    .avatar-grid-main {
        grid-template-columns: 1fr;
        gap: 1.5rem
        }
    }
/* Chat Header */
.chat-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,<svg width=\"60\" height=\"60\" viewBox=\"0 0 60 60\" xmlns=\"http://www.w3.org/2000/svg\"><g fill=\"none\" fill-rule=\"evenodd\"><g fill=\"%23ffffff\" fill-opacity=\"0.1\"><path d=\"M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z\"/></g></g></svg>") repeat;
    opacity: 0.1
    }
/* Avatar Chat Button */
.avatar-chat-btn {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    backdrop-filter: blur(10px);
    margin-left: 1rem
    }
.avatar-chat-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translatey(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15)
    }
.avatar-chat-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none
    }
.avatar-chat-btn:disabled:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: none;
    box-shadow: none
    }
.avatar-chat-btn i {
    font-size: 1rem
    }
/* Avatar Chat Panel */
.avatar-chat-panel {
    position: fixed;
    top: 0;
    right: -500px;
    width: 500px;
    height: 100vh;
    background: var(--surface-elevated);
    border-left: 1px solid var(--border-light);
    box-shadow: var(--shadow-xl);
    z-index: 2000;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    resize: horizontal;
    min-width: 400px;
    max-width: 600px
    }
.avatar-chat-panel.open {
    right: 0
    }
/* Transformed Chat Messages Area */
.chat-messages.avatar-mode {
    display: flex;
    flex-direction: column;
    padding: 0;
    background: var(--surface-color)
    }
.avatar-selection-container {
    padding: 2rem;
    background: var(--surface-elevated);
    border-bottom: 1px solid var(--border-light);
    text-align: center
    }
.avatar-selection-container h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 1rem 0;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text
    }
.avatar-selection-container p {
    font-size: 1rem;
    color: var(--text-muted);
    margin: 0 0 2rem 0
    }
.avatar-grid-main {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 600px;
    margin: 0 auto
    }
.avatar-option-main {
    background: var(--surface-color);
    border: 3px solid var(--border-light);
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    cursor: pointer;
    transition: var(--transition-normal);
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm)
    }
.avatar-option-main:hover {
    border-color: var(--primary-color);
    transform: translatey(-4px) scale(1.02);
    box-shadow: var(--shadow-lg)
    }
.avatar-option-main.selected {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
    transform: translatey(-2px);
    box-shadow: var(--shadow-md)
    }
.avatar-option-main.selected::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient)
    }
.avatar-image-main {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-md);
    border: 4px solid var(--border-light);
    transition: var(--transition-normal);
    position: relative;
    z-index: 1
    }
.avatar-option-main:hover .avatar-image-main {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg)
    }
.avatar-option-main.selected .avatar-image-main {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.2)
    }
.avatar-name-main {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    position: relative;
    z-index: 1
    }
.avatar-option-main:hover .avatar-name-main {
    color: var(--primary-color)
    }
.avatar-option-main.selected .avatar-name-main {
    color: var(--primary-color)
    }
/* Split Layout for Avatar + Chat */
.chat-messages.avatar-active {
    display: flex;
    flex-direction: row;
    padding: 0;
    background: var(--surface-color)
    }
.avatar-video-section {
    width: 50%;
    background: var(--surface-color);
    border-right: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    position: relative
    }
.avatar-video-main {
    flex: 1;
    background: var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    position: relative;
    overflow: hidden;
    border: 3px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    margin: 1rem;
    box-shadow: var(--shadow-md)
    }
.avatar-video-main video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center
    }
.avatar-controls-main {
    padding: 1rem 1.5rem;
    background: var(--surface-elevated);
    border-top: 1px solid var(--border-light)
    }
.avatar-input-group-main {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end
    }
.avatar-input-main {
    flex: 1;
    padding: 0.75rem 1rem 0.75rem 4.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    font-size: 0.875rem;
    resize: none;
    min-height: 2.75rem;
    max-height: 6rem;
    background: var(--surface-color);
    transition: var(--transition-fast)
    }
.avatar-input-main:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1)
    }
.avatar-send-btn-main {
    background: var(--primary-gradient);
    color: white;
    border: none;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    box-shadow: var(--shadow-sm)
    }
.avatar-send-btn-main:hover {
    transform: translatey(-2px) scale(1.05);
    box-shadow: var(--shadow-md)
    }
.avatar-send-btn-main:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none
    }
.chat-content-section {
    width: 50%;
    display: flex;
    flex-direction: column;
    background: var(--background-color)
    }
.chat-messages-content {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    background: linear-gradient(180deg, var(--background-color) 0%, var(--surface-color) 100%)
    }
.chat-input-section {
    padding: 1.5rem 2rem;
    background: var(--surface-elevated);
    border-top: 1px solid var(--border-light);
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    position: relative;
    flex-shrink: 0;
    bottom: 0;
    z-index: 100;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05)
    }
/* Links Preview Section */
.links-preview-section {
    width: 50%;
    display: flex;
    flex-direction: column;
    background: var(--surface-elevated);
    border-left: 1px solid var(--border-light)
    }
.links-preview-header {
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, var(--surface-elevated) 0%, #f8fafc 100%);
    border-bottom: 1px solid var(--border-light)
    }
.links-preview-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem
    }
.links-preview-header h3::before {
    content: "";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--primary-color)
    }
.links-preview-header p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0
    }
.links-preview-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem
    }
.no-links-message {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted)
    }
.no-links-message i {
    font-size: 3rem;
    color: var(--border-color);
    margin-bottom: 1rem;
    display: block
    }
.no-links-message p {
    font-size: 0.875rem;
    margin: 0
    }
.link-item {
    background: var(--surface-color);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: 1rem;
    margin-bottom: 1rem;
    transition: var(--transition-fast);
    cursor: pointer
    }
.link-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
    transform: translatey(-1px)
    }
.link-item:last-child {
    margin-bottom: 0
    }
.link-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
    line-height: 1.4
    }
.link-url {
    font-size: 0.75rem;
    color: var(--primary-color);
    margin: 0;
    word-break: break-all;
    font-family: monospace
    }
.link-description {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0.5rem 0 0 0;
    line-height: 1.4
    }
.avatar-status-main {
    padding: 0.75rem 1.5rem;
    background: var(--border-light);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem
    }
.avatar-status-left {
    display: flex;
    align-items: center;
    gap: 0.5rem
    }
.avatar-status-indicator-main {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted)
    }
.avatar-status-indicator-main.connected {
    background: var(--success-color);
    animation: pulse 2s infinite
    }
.avatar-status-indicator-main.connecting {
    background: var(--warning-color);
    animation: pulse 1s infinite
    }
.avatar-status-indicator-main.error {
    background: var(--danger-color)
    }
/* Back to Chat Button */
.back-to-chat-btn {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    white-space: nowrap
    }
.back-to-chat-btn:hover {
    transform: translatey(-2px);
    box-shadow: var(--shadow-md)
    }
.back-to-chat-btn i {
    font-size: 0.875rem
    }
/* Resize handle for avatar panel */
.avatar-resize-handle {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary-color);
    cursor: ew-resize;
    opacity: 0;
    transition: var(--transition-fast)
    }
.avatar-chat-panel:hover .avatar-resize-handle {
    opacity: 1
    }
.avatar-resize-handle:hover {
    opacity: 1;
    background: var(--secondary-color)
    }
.avatar-chat-header {
    background: var(--primary-gradient);
    color: white;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm)
    }
.avatar-chat-title {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem
    }
.avatar-chat-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast)
    }
.avatar-chat-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1)
    }
.avatar-chat-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden
    }
.avatar-selection {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-light)
    }
.avatar-selection h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 1rem 0
    }
.avatar-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem
    }
.avatar-option {
    background: var(--surface-color);
    border: 3px solid var(--border-light);
    border-radius: var(--border-radius-xl);
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition-normal);
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm)
    }
.avatar-option:hover {
    border-color: var(--primary-color);
    transform: translatey(-4px) scale(1.02);
    box-shadow: var(--shadow-lg)
    }
.avatar-option.selected {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
    transform: translatey(-2px);
    box-shadow: var(--shadow-md)
    }
.avatar-option.selected::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient)
    }
.avatar-option::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(102, 126, 234, 0.05) 100%);
    opacity: 0;
    transition: var(--transition-normal)
    }
.avatar-option:hover::after {
    opacity: 1
    }
.avatar-image {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1rem;
    box-shadow: var(--shadow-md);
    border: 4px solid var(--border-light);
    transition: var(--transition-normal);
    position: relative;
    z-index: 1
    }
.avatar-option:hover .avatar-image {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg)
    }
.avatar-option.selected .avatar-image {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.2)
    }
.avatar-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    position: relative;
    z-index: 1
    }
.avatar-option:hover .avatar-name {
    color: var(--primary-color)
    }
.avatar-option.selected .avatar-name {
    color: var(--primary-color)
    }
.avatar-chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden
    }
.avatar-video-container {
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-light);
    position: relative;
    overflow: hidden
    }
.avatar-video {
    width: 100%;
    height: 650px;
    background: var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    position: relative;
    overflow: hidden
    }
.avatar-video video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center
    }
.avatar-controls {
    padding: 1rem 1.5rem;
    background: var(--surface-elevated);
    border-top: 1px solid var(--border-light)
    }
.avatar-input-group {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end
    }
.avatar-input {
    flex: 1;
    padding: 0.75rem 1rem 0.75rem 4.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    font-size: 0.875rem;
    resize: none;
    min-height: 2.75rem;
    max-height: 6rem;
    background: var(--surface-color);
    transition: var(--transition-fast)
    }
.avatar-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1)
    }
.avatar-send-btn {
    background: var(--primary-gradient);
    color: white;
    border: none;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    box-shadow: var(--shadow-sm)
    }
.avatar-send-btn:hover {
    transform: translatey(-2px) scale(1.05);
    box-shadow: var(--shadow-md)
    }
.avatar-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none
    }
.avatar-status {
    padding: 0.75rem 1.5rem;
    background: var(--border-light);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem
    }
.avatar-status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted)
    }
.avatar-status-indicator.connected {
    background: var(--success-color);
    animation: pulse 2s infinite
    }
.avatar-status-indicator.connecting {
    background: var(--warning-color);
    animation: pulse 1s infinite
    }
.avatar-status-indicator.error {
    background: var(--danger-color)
    }
/* Assessment styles */
.assessment-container {
    background: var(--surface-color);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: 1rem;
    margin-bottom: 1rem;
    transition: var(--transition-fast);
    cursor: pointer;
    box-shadow: var(--shadow-sm)
    }
.assessment-container:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translatey(-1px)
    }
.assessment-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
    line-height: 1.4
    }
.assessment-description {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0.5rem 0 0 0;
    line-height: 1.4
    }
.assessment-results {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--border-light);
    border-radius: var(--border-radius-lg)
    }
.assessment-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem
    }
.assessment-results-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary)
    }
.assessment-results-score {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color)
    }
.assessment-results-summary {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.5rem
    }
.assessment-results-feedback {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 1rem
    }
.assessment-question {
    margin-bottom: 1rem
    }
.assessment-question-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem
    }
.assessment-question-answer {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem
    }
.assessment-question-evaluation {
    font-size: 0.875rem;
    color: var(--text-muted)
    }
.assessment-question-status {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-md);
    margin-left: 0.5rem
    }
.assessment-question-status.correct {
    background: var(--success-color);
    color: white
    }
.assessment-question-status.incorrect {
    background: var(--danger-color);
    color: white
    }
.assessment-question-status.skipped {
    background: var(--warning-color);
    color: white
    }
.assessment-question-points {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: 0.5rem
    }
.assessment-question-score {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: 0.5rem
    }
.assessment-question-correct-answer {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.5rem
    }
.assessment-question-correct-answer span {
    font-weight: 600;
    color: var(--text-primary)
    }
.assessment-question-user-answer {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.5rem
    }
.assessment-question-user-answer span {
    font-weight: 600;
    color: var(--text-primary)
    }
.assessment-question-explanation {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.5rem
    }
.assessment-question-explanation p {
    margin: 0
    }
.assessment-question-explanation ul, .assessment-question-explanation ol {
    margin: 0.5rem 0;
    padding-left: 1.5rem
    }
.assessment-question-explanation li {
    margin-bottom: 0.25rem
    }
.assessment-question-explanation code {
    background: var(--border-light);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem
    }
.assessment-question-explanation a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600
    }
.assessment-question-explanation a:hover {
    text-decoration: underline
    }
/* Assessment Evaluation Bubble Styling */
.assessment-bubble {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden
    }
.assessment-message .message-avatar {
    background: var(--primary-gradient);
    color: white
    }
.assessment-interface-wrapper {
    min-height: 200px
    }
/* Assessment Results Styling */
.assessment-results {
    padding: 1.5rem;
    background: var(--surface-color);
    border-radius: var(--border-radius-lg)
    }
.assessment-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem
    }
.assessment-results-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem
    }
.assessment-results-score {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color)
    }
.assessment-question-item {
    background: var(--surface-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-md);
    padding: 1rem;
    margin-bottom: 1rem
    }
.assessment-question-text {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem
    }
.assessment-answer-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    margin-bottom: 0.5rem
    }
.assessment-answer-label {
    font-weight: 600;
    color: var(--text-secondary)
    }
.assessment-answer-value {
    color: var(--text-primary)
    }
.assessment-score-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600
    }
.assessment-score-badge.correct {
    background: var(--success-color);
    color: white
    }
.assessment-score-badge.incorrect {
    background: #ef4444;
    color: white
    }
.assessment-evaluation-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: rgba(102, 126, 234, 0.05);
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--primary-color)
    }
.assessment-summary {
    background: var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    margin-top: 1.5rem
    }
.assessment-summary h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 1rem 0
    }
.assessment-summary p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0
    }
/* Responsive Design for Small Viewports */
@media (max-height: 600px) {
    .main-layout {
        height: calc(100vh - 60px)
        }
    .chat-messages {
        min-height: 200px;
        padding: 1rem
        }
    .chat-header {
        padding: 0.5rem 1.5rem
        }
    .chat-input {
        padding: 1rem 1.5rem
        }
    }
@media (max-height: 400px) {
    .chat-messages {
        min-height: 150px;
        padding: 0.5rem;
        gap: 1rem
        }
    .chat-header {
        padding: 0.25rem 1rem
        }
    .chat-input {
        padding: 0.75rem 1rem 0.75rem 4.5rem
        }
    }
/* Enhanced responsive design for better split screen and window resize support */
@media (max-width: 1400px) {
    .main-layout {
        grid-template-columns: 300px 1fr !important;
        /* hide right panel */
        }
    .suggestions-panel {
        display: none !important
        }
    }
@media (max-width: 1200px) {
    .main-layout {
        grid-template-columns: 280px 1fr !important;
        /* hide right panel */
        }
    .suggestions-panel {
        display: none !important
        }
    }
@media (max-width: 1024px) {
    .main-layout {
        grid-template-columns: 1fr !important;
        grid-template-rows: 1fr !important
        }
    .conversation-panel {
        display: none !important
        }
    .suggestions-panel {
        display: none !important
        }
    }
@media (max-width: 900px) {
    .main-layout {
        grid-template-columns: 1fr !important;
        grid-template-rows: 1fr !important
        }
    .conversation-panel, .suggestions-panel {
        display: none !important
        }
    }
/* Better handling of very small screens */
@media (max-width: 480px) {
    .main-layout {
        height: calc(100vh - 60px) !important
        }
    .nav-instance {
        padding: 0.5rem 1rem !important
        }
    .chat-messages {
        padding: 0.5rem !important
        }
    .chat-input {
        padding: 0.5rem !important
        }
    }
/* Enhanced input positioning fixes for all screen sizes */
.chat-section {
    position: relative;
    min-height: 0;
    /* Important for flex child */
    height: 100%
    }
/* CRITICAL: Enhanced Chat Layout - Fixed Input Positioning */
.chat-section {
    display: flex !important;
    flex-direction: column !important;
    height: 100% !important;
    min-height: 0 !important;
    position: relative !important;
    overflow: hidden !important
    }
.chat-header {
    flex-shrink: 0 !important;
    position: relative !important;
    z-index: 10 !important
    }
.chat-messages {
    flex: 1 !important;
    overflow-y: auto !important;
    min-height: 0 !important;
    position: relative !important;
    z-index: 1 !important;
    padding-bottom: 1rem !important;
    /* Add padding to prevent content from being hidden behind input */
    }
.chat-input {
    flex-shrink: 0 !important;
    position: relative !important;
    z-index: 100 !important;
    background: var(--surface-elevated) !important;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1) !important;
    margin-top: 0 !important;
    bottom: 0 !important
    }
/* Force proper layout at all screen sizes and orientations */
@media screen and (min-width: 1px) {
    .main-layout {
        display: grid !important;
        height: calc(100vh - 80px) !important;
        min-height: calc(100vh - 80px) !important
        }
    .chat-section {
        display: flex !important;
        flex-direction: column !important;
        height: 100% !important;
        min-height: 0 !important
        }
    .chat-messages {
        flex: 1 !important;
        overflow-y: auto !important;
        min-height: 0 !important
        }
    .chat-input {
        flex-shrink: 0 !important;
        position: relative !important
        }
    }
/* Responsive layout fixes */
@media (max-width: 1400px) {
    .main-layout {
        grid-template-columns: 300px 1fr !important
        }
    .chat-section {
        height: 100% !important;
        display: flex !important;
        flex-direction: column !important
        }
    }
@media (max-width: 1200px) {
    .main-layout {
        grid-template-columns: 280px 1fr !important
        }
    .chat-section {
        height: 100% !important;
        display: flex !important;
        flex-direction: column !important
        }
    }
@media (max-width: 1024px) {
    .main-layout {
        grid-template-columns: 1fr !important
        }
    .chat-section {
        height: 100% !important;
        display: flex !important;
        flex-direction: column !important
        }
    }
@media (max-width: 900px) {
    .main-layout {
        grid-template-columns: 1fr !important
        }
    .chat-section {
        height: 100% !important;
        display: flex !important;
        flex-direction: column !important
        }
    }
/* Handle window resizing and viewport changes */
@media (orientation: portrait) {
    .chat-section {
        display: flex !important;
        flex-direction: column !important;
        height: 100% !important
        }
    .chat-messages {
        flex: 1 !important;
        overflow-y: auto !important;
        min-height: 0 !important
        }
    .chat-input {
        flex-shrink: 0 !important;
        position: relative !important
        }
    }
@media (orientation: landscape) {
    .chat-section {
        display: flex !important;
        flex-direction: column !important;
        height: 100% !important
        }
    .chat-messages {
        flex: 1 !important;
        overflow-y: auto !important;
        min-height: 0 !important
        }
    .chat-input {
        flex-shrink: 0 !important;
        position: relative !important
        }
    }
/* Handle split screen scenarios */
@media (max-width: 768px) {
    .chat-section {
        display: flex !important;
        flex-direction: column !important;
        height: 100% !important
        }
    .chat-messages {
        flex: 1 !important;
        overflow-y: auto !important;
        min-height: 0 !important
        }
    .chat-input {
        flex-shrink: 0 !important;
        position: relative !important
        }
    }
/* Ensure input stays at bottom during window resize */
@media (max-height: 600px) {
    .chat-section {
        display: flex !important;
        flex-direction: column !important;
        height: 100% !important
        }
    .chat-messages {
        flex: 1 !important;
        overflow-y: auto !important;
        min-height: 0 !important
        }
    .chat-input {
        flex-shrink: 0 !important;
        position: relative !important
        }
    }
/* Quick Action Cards */
.quick-action-cards-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    margin: 2rem 0;
    background: transparent;
    min-height: 400px;
    animation: fadeInUp 0.6s ease-out
    }
.quick-action-cards-header {
    text-align: center;
    margin-bottom: 3rem;
    max-width: 600px
    }
.quick-action-cards-header h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 1rem 0;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.3
    }
.quick-action-cards-header p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.5;
    font-weight: 400
    }
.quick-action-cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    width: 100%;
    max-width: 700px
    }
.quick-action-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(102, 126, 234, 0.1);
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.08);
    min-height: 120px
    }
.quick-action-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    opacity: 0;
    transition: var(--transition-normal)
    }
.quick-action-card:hover {
    background: rgba(255, 255, 255, 0.8);
    border-color: var(--primary-color);
    transform: translatey(-6px) scale(1.02);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.15)
    }
.quick-action-card:hover::before {
    opacity: 1
    }
.quick-action-card:active {
    transform: translatey(-2px) scale(1.01);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.12)
    }
.quick-action-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    transition: var(--transition-normal);
    position: relative;
    z-index: 2
    }
.quick-action-card:hover .quick-action-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4)
    }
.quick-action-content {
    flex: 1;
    position: relative;
    z-index: 2
    }
.quick-action-content h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.75rem 0;
    line-height: 1.3;
    transition: var(--transition-fast)
    }
.quick-action-card:hover .quick-action-content h4 {
    color: var(--primary-color)
    }
.quick-action-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
    font-weight: 400
    }
.quick-action-arrow {
    width: 40px;
    height: 40px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.1rem;
    flex-shrink: 0;
    transition: var(--transition-normal);
    position: relative;
    z-index: 2
    }
.quick-action-card:hover .quick-action-arrow {
    background: var(--primary-color);
    color: white;
    transform: translatex(6px) scale(1.1);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3)
    }
/* Responsive design for quick action cards */
@media (max-width: 768px) {
    .quick-action-cards-container {
        padding: 2rem 1rem;
        min-height: 300px
        }
    .quick-action-cards-header h3 {
        font-size: 1.5rem
        }
    .quick-action-cards-header p {
        font-size: 1rem
        }
    .quick-action-card {
        padding: 1.5rem;
        flex-direction: column;
        text-align: center;
        gap: 1rem;
        min-height: auto
        }
    .quick-action-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        margin: 0 auto
        }
    .quick-action-arrow {
        width: 36px;
        height: 36px;
        font-size: 1rem
        }
    .quick-action-card:hover .quick-action-arrow {
        transform: translatey(-6px) scale(1.1)
        }
    }
@media (max-width: 480px) {
    .quick-action-cards-container {
        padding: 1.5rem 0.75rem
        }
    .quick-action-cards-grid {
        gap: 1rem
        }
    .quick-action-card {
        padding: 1.25rem
        }
    .quick-action-cards-header h3 {
        font-size: 1.35rem
        }
    .quick-action-content h4 {
        font-size: 1.1rem
        }
    .quick-action-content p {
        font-size: 0.9rem
        }
    /* Stack cards vertically on mobile */
    .quick-action-cards-grid {
        grid-template-columns: 1fr !important;
        gap: 0.75rem !important
        }
    .quick-action-card {
        min-height: 120px !important
        }
    /* Mini cards responsive design */
    .mini-quick-cards-container {
        padding: 0.75rem 1rem 0.5rem !important
        }
    .mini-quick-cards-grid {
        flex-direction: column !important;
        gap: 0.5rem !important
        }
    .mini-quick-card {
        max-width: none !important;
        min-width: auto !important;
        width: 100% !important;
        justify-content: flex-start !important;
        text-align: left !important
        }
    .mini-quick-card span {
        white-space: normal !important;
        overflow: visible !important;
        text-overflow: initial !important
        }
    }
/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
        } to {
        opacity: 1;
        transform: translateY(0);
        }
    }
@keyframes fadeIn {
    from {
        opacity: 0;
        } to {
        opacity: 1;
        }
    }
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
        } to {
        opacity: 1;
        transform: translateX(0);
        }
    }
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        } 50% {
        opacity: 0.7;
        }
    }
@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
        } 40%, 43% {
        transform: translate3d(0, -8px, 0);
        } 70% {
        transform: translate3d(0, -4px, 0);
        } 90% {
        transform: translate3d(0, -2px, 0);
        }
    }
/* Navigation */
/* Layout */
.main-layout {
    display: grid;
    grid-template-columns: 352px 1fr 420px;
    height: calc(100vh - 80px);
    gap: 0;
    transition: var(--transition-normal)
    }
.main-layout.collapsed {
    grid-template-columns: 60px 1fr 420px
    }
/* Conversation History Panel */
.conversation-panel {
    background: var(--surface-color);
    border-right: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative
    }
.main-layout.collapsed .conversation-panel .conversation-content {
    display: none
    }
.main-layout.collapsed .conversation-panel .conversation-toggle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10
    }
.conversation-header {
    padding: 0.5rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: transparent;
    position: relative;
    padding-left: 3.5rem;
    min-height: auto;
    /* Make room for toggle button on the left */
    }
.conversation-list {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
    background: linear-gradient(180deg, var(--surface-color) 0%, var(--background-color) 100%)
    }
.session-card {
    background: var(--surface-elevated);
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: 1.25rem;
    margin-bottom: 1rem;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm)
    }
.session-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: var(--primary-gradient);
    transition: var(--transition-normal)
    }
.session-card:hover {
    border-color: var(--primary-color);
    transform: translatey(-2px);
    box-shadow: var(--shadow-md)
    }
.session-card:hover::before {
    width: 4px
    }
.session-card.active {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
    box-shadow: var(--shadow-md)
    }
.session-card.active::before {
    width: 4px
    }
.session-header {
    display: flex;
    align-items: center;
    justify-content: between;
    margin-bottom: 0.75rem
    }
.session-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    margin-right: 1rem;
    box-shadow: var(--shadow-sm)
    }
.session-preview {
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-weight: 500
    }
.session-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-light)
    }
.session-time {
    display: flex;
    align-items: center;
    gap: 0.5rem
    }
.session-time i {
    color: var(--primary-color);
    font-size: 0.875rem
    }
.session-count {
    background: var(--primary-gradient);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.7rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.25rem
    }
.session-count i {
    font-size: 0.75rem
    }
/* Chat Area */
.chat-section {
    display: flex;
    flex-direction: column;
    background: var(--surface-color);
    position: relative
    }
/* Messages Area */
/* Bot avatar specific styling for tutoring theme */
.message-bubble {
    background: var(--surface-elevated);
    border-radius: var(--border-radius-lg);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-sm);
    position: relative;
    border: 1px solid var(--border-light);
    transition: var(--transition-fast)
    }
/* Layout */
/* Conversation History Panel */
/* Chat Area */
/* Messages Area */
/* Bot avatar specific styling for tutoring theme */
/* Typing Indicator */
/* Input Area */
.chat-input {
    padding: 1.5rem 2rem;
    background: var(--surface-elevated);
    border-top: 1px solid var(--border-light);
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    position: relative;
    flex-shrink: 0;
    bottom: 0;
    z-index: 100;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05)
    }
.input-wrapper {
    flex: 1;
    position: relative
    }
.message-input {
    width: 100%;
    min-height: 2.75rem;
    max-height: 8rem;
    padding: 0.75rem 1rem 0.75rem 4.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    resize: none;
    font-family: inherit;
    font-size: 0.875rem;
    line-height: 1.5;
    background: var(--surface-color);
    transition: var(--transition-fast);
    outline: none
    }
/* Microphone Button */
/* TTS Button */
/* Make message bubbles relative for TTS button positioning */
/* Voice Chat Button Styles */
/* Right Panel - Suggestions & Actions */
/* Suggestion Cards */
/* Quick Actions */
/* Agent Cards */
/* Specific Agent Colors */
/* Forms */
/* Modal */
/* Responsive Design */
@media (max-width: 1400px) {
    .main-layout {
        grid-template-columns: 320px 1fr 380px
        }
    .main-layout.collapsed {
        grid-template-columns: 60px 1fr 380px
        }
    }
@media (max-width: 1200px) {
    .main-layout {
        grid-template-columns: 300px 1fr 350px
        }
    .main-layout.collapsed {
        grid-template-columns: 60px 1fr 350px
        }
    }
@media (max-width: 1024px) {
    .main-layout {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr
        }
    .conversation-panel, .suggestions-panel {
        display: none
        }
    .nav-instance {
        padding: 1rem
        }
    .chat-messages {
        padding: 1rem
        }
    .chat-input {
        padding: 1rem
        }
    /* Avatar chat panel responsive */
    .avatar-chat-panel {
        width: 100%;
        right: -100%
        }
    .avatar-chat-panel.open {
        right: 0
        }
    .avatar-grid {
        grid-template-columns: 1fr
        }
    .avatar-video {
        height: 50vh
        }
    }
@media (max-width: 768px) {
    .nav-instance {
        padding: 0.75rem
        }
    .nav-title {
        font-size: 1.1rem
        }
    .chat-header {
        padding: 1rem
        }
    .chat-title h3 {
        font-size: 1.25rem
        }
    .chat-subtitle {
        display: none
        }
    .message {
        max-width: 95%
        }
    .chat-messages {
        padding: 1rem;
        gap: 1rem
        }
    /* Hide avatar chat button text on very small screens */
    .avatar-chat-btn span {
        display: none
        }
    .avatar-chat-btn {
        padding: 0.5rem;
        margin-left: 0.5rem
        }
    }
/* Utility Classes */
/* Scrollbar Styling */
/* Focus States */
/* Loading States */
@keyframes spin {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
        } 100% {
        transform: translate(-50%, -50%) rotate(360deg);
        }
    }
/* Responsive Design for Split Layout */
@media (max-width: 1024px) {
    .chat-messages.avatar-active {
        flex-direction: column
        }
    .avatar-video-section, .links-preview-section {
        width: 100%
        }
    .avatar-video-section {
        height: 40vh;
        border-right: none;
        border-bottom: 1px solid var(--border-light)
        }
    .links-preview-section {
        border-left: none;
        border-top: 1px solid var(--border-light)
        }
    .avatar-grid-main {
        grid-template-columns: 1fr;
        gap: 1.5rem
        }
    }
/* Chat Header */
/* Avatar Chat Button */
/* Avatar Chat Panel */
.avatar-chat-panel {
    position: fixed;
    top: 0;
    right: -500px;
    width: 500px;
    height: 100vh;
    background: var(--surface-elevated);
    border-left: 1px solid var(--border-light);
    box-shadow: var(--shadow-xl);
    z-index: 2000;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    resize: horizontal;
    min-width: 400px;
    max-width: 800px
    }
/* Transformed Chat Messages Area */
/* Split Layout for Avatar + Chat */
/* Links Preview Section */
/* Back to Chat Button */
/* Resize handle for avatar panel */
/* Assessment styles */