/* ============================================================
   Chat component styles
   Extracted from Components/Chat.razor (Phase 3 restyling).
   Loaded globally via App.razor. Scoped to chat classes
   (.chat-*, .rz-material-dark .chat-*) so it does not leak
   into the rest of the admin UI.
   ============================================================ */

    /* Brand tokens — centralize accent colors so future restyles happen in one
       place instead of scattered hardcoded hexes. */
    :root {
        --brand-teal: #0EA299;
        --brand-teal-dark: #0B7F79;
        /* Indigo accent for markdown tables in chat (header gradient + first col) */
        --chat-table-grad-from: #667eea;
        --chat-table-grad-to: #764ba2;
        /* Dev-mode switch "on" state */
        --dev-mode-on: #88AC68;
        /* Chat typeface — single source of truth for the whole chat surface */
        --chat-font: "Inter", "Segoe UI", Roboto, system-ui, -apple-system, sans-serif;
    }

    /* Chat Layout Grid.
       !important is required here: chat.css loads before Radzen's own default.css (see App.razor),
       and RadzenLayout's built-in `.rz-layout` rule (grid-template-columns: auto 1fr; grid-template-areas:
       "rz-header rz-header" "rz-sidebar rz-body" "rz-footer rz-footer") has the same specificity as
       `.chat-layout`, so without !important the later-loaded Radzen rule silently wins the cascade —
       our 3-column template (left-sidebar / rz-body / rz-sidebar) never actually applies, the
       "left-sidebar" grid-area name doesn't exist in the real grid, and any sidebar with an unmatched
       grid-area falls back to auto-placement in Radzen's own left-hand "rz-sidebar" column regardless
       of which named area it was given. */
    .chat-layout {
        grid-template-columns: auto 1fr auto !important;
        grid-template-areas: 'rz-header rz-header rz-header' 'left-sidebar rz-body rz-sidebar' !important;
        max-height: 100%;
    }

    .chat-sidebar {
        background-color: #F9FAFC;
    }

    .rz-material-dark .chat-sidebar {
        background-color: #2C2B30 !important;
    }

    /* Mobile: Chat history sidebar slides from left */
    .mobile-chat-sidebar {
        background-color: white;
        position: fixed !important;
        left: 0 !important;
        top: 70px !important;
        width: auto !important;
        max-width: 320px !important;
        z-index: 1000 !important;
        box-shadow: 2px 0 15px rgba(0, 0, 0, 0.3);
        transform: translateX(-100%) !important;
        transition: transform 0.3s ease-in-out !important;
    }

    .mobile-chat-sidebar.rz-sidebar-expanded {
        transform: translateX(0) !important;
    }

    /* Mobile sidebar header styles */
    .mobile-sidebar-header {
        padding: 1rem;
        border-bottom: 1px solid #e9ecef;
    }

    .rz-material-dark .mobile-sidebar-header {
        border-bottom-color: #6d6d6d;
        background-color: #2C2B30;
    }

    .mobile-sidebar-title-row {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        margin-bottom: 1rem;
    }

    .sidebar-back-button {
        min-width: 36px !important;
        padding: 0.25rem !important;
    }

    .sidebar-title {
        margin: 0;
        color: #495057;
        font-size: 1.25rem;
        flex: 1;
    }

    .rz-material-dark .sidebar-title {
        color: #f8f9fa;
    }

    .mobile-sidebar-actions {
        display: flex;
        gap: 0.5rem;
        align-items: center;
    }

    .sidebar-close-button {
        min-width: 40px !important;
        width: 40px !important;
        height: 40px !important;
        padding: 0 !important;
    }

    .mobile-search-input {
        background-color: white !important;
        border: 1px solid #dee2e6 !important;
        border-radius: 8px !important;
        padding: 0.5rem !important;
        height: 40px !important;
    }

    .rz-material-dark .mobile-search-input {
        background-color: #3a3a3a !important;
        border-color: #6d6d6d !important;
        color: #f8f9fa !important;
    }

    .mobile-new-chat-button {
        min-width: 40px !important;
        width: 40px !important;
        height: 40px !important;
        border-radius: 8px !important;
        padding: 0 !important;
    }

    /* Mobile menu toggle styling */
    .mobile-menu-toggle {
        background: transparent !important;
        border: none !important;
    }

    .mobile-menu-toggle .rz-button-icon {
        font-size: 1.5rem;
    }

    .rz-material-dark .rz-header {
        background-color: #2d2d2d !important;
    }

    #messageTextBox,
    .app-builder-message-box {
        width: 100%;
        height: 100%;
        background-color: transparent !important;
        border: none !important;
        /* Same scale as the message text (.chat-markdown / .user-text, 0.95rem):
           what you type should not read bigger than what gets sent. Radzen's
           default is --rz-input-font-size (1rem). */
        font-size: 0.95rem;
    }

        #messageTextBox:focus,
        .app-builder-message-box:focus {
            box-shadow: none;
        }

    .rz-material-dark #messageTextBox,
    .rz-material-dark .app-builder-message-box {
        background-color: #2C2B30 !important;
    }

    .chat-options-section {
        margin-top: 5px;
        padding: 5px 0;
    }

    .option-button {
        color: black !important;
        background: none !important;
    }

    .rz-material-dark .option-button {
        color: white !important;
    }

    .rz-material-dark .chat-options-section {
        background-color: #2d2d2d !important;
    }

    /* Chat body */
    .analysis-ready-indicator {
        position: absolute;
        top: 2px;
        background-color: #e4f5e4 !important;
        padding: 5px 10px;
        justify-self: center;
        z-index: 2;
    }

    .analysis-filter-indicator {
        position: absolute;
        top: 2px;
        background-color: #e4e7f5 !important;
        padding: 5px 10px;
        justify-self: center;
        z-index: 2;
    }

    .chat-body {
        background-color: white;
    }

    .rz-material-dark .chat-body {
        background-color: #2d2d2d !important;
    }

    .video-type-chat-body {
        display: grid;
        grid-template-columns: 30% 50% 20%;
        grid-template-areas: 'chat-container video-container alt-video-container';
        max-height: 90vh;
    }

    /* ===========================================================
       Single typographic voice for the WHOLE chat surface.
       The Radzen material theme resolves every .rz-text-* class,
       the body copy and the alert titles from the custom property
       --rz-text-font-family (icons use the separate
       --rz-icon-font-family, so they are untouched). Redefining
       that variable at the chat roots re-themes every RadzenText,
       button, input and dropdown inside — titles, sidebar, history,
       composer, status lines — by custom-property inheritance,
       with no specificity fights and no per-class whack-a-mole.
       The plain font-family covers non-Radzen elements. Scoped to
       the chat roots so the rest of the admin UI keeps the theme
       default. .chat-markdown is listed on its own because the
       skill playground renders it outside any chat root. */
    .chat-layout,
    .chat-container,
    .chat-markdown {
        --rz-text-font-family: var(--chat-font);
        font-family: var(--chat-font);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    .chat-container {
        grid-area: chat-container;
        display: flex;
        flex-direction: column;
        height: 97%;
        min-height: 0;
        overflow: hidden;
        background: transparent !important;
    }

    .rz-material-dark .chat-container {
        background-color: #383A45 !important;
    }


    .rz-material-dark .custom-arrow-button {
        color: white !important;
        border: 1px solid white !important;
    }

    .title-section {
        background-color: #F9FAFF;
        padding: 15px 20px;
    }

    .rz-material-dark .title-section {
        background-color: #242424;
    }

    .language-icon, .chat-icon {
        color: black;
    }

    .rz-material-dark .chat-icon {
        color: white;
    }

    .custom-dropdown {
        width: 150px;
    }

    .rz-material-dark .custom-dropdown {
        background-color: #3B3D48 !important;
    }

    .custom-arrow-button {
        text-transform: none;
        border-radius: 50%;
    }

    .custom-textarea {
        width: 100%;
        height: 200px;
        resize: none;
        border-radius: 10px;
    }

    .chat-panel {
        max-width: 100%;
        word-wrap: break-word;
        overflow-wrap: anywhere;
        padding: 0 10px !important;
        margin: 0 !important;
        border-radius: 15px;
    }

    .bubble-wrap {
        position: relative;
        border-radius: 16px !important;
        background: #F4F6FA !important;
        box-shadow:
            inset 0 1px 0 rgba(255,255,255,0.55),
            inset 0 -6px 8px -6px rgba(41,127,254,0.18),
            0 0 0 1px rgba(41,127,254,0.15),
            0 1px 12px rgba(41,127,254,0.15);
        padding: 14px 16px !important;
        overflow: hidden;
    }

    .bubble-color {
        position: absolute;
        inset: 0;
        pointer-events: none;
        background:
            radial-gradient(90% 90% at 100% 0%, rgba(31,31,34,0.20) 0%, rgba(31,31,34,0) 65%),
            radial-gradient(100% 100% at 0% 100%, rgba(41,127,254,0.42) 0%, rgba(67,86,255,0.14) 50%, rgba(67,86,255,0) 85%);
        animation: glow-pulse 4s ease-in-out infinite;
    }

    .bubble-glass {
        position: absolute;
        inset: 0;
        pointer-events: none;
        background:
            linear-gradient(180deg, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0) 22%),
            radial-gradient(120% 100% at 50% 0%, rgba(255,255,255,0.28) 0%, rgba(255,255,255,0.02) 100%);
    }

    .bubble-text {
        position: relative;
        font-size: inherit;
        color: inherit;
        margin: 0;
    }

    @keyframes glow-pulse {
        0%, 100% { opacity: 0.55; }
        50% { opacity: 1; }
    }

    @media (prefers-reduced-motion: reduce) {
        .bubble-color {
            animation: none;
            opacity: 1;
        }
    }

    /* Markdown table styling */
    .chat-panel table {
        width: 100%;
        border-collapse: separate;
        border-spacing: 0;
        border-radius: 8px;
        overflow: hidden;
        margin: 12px 0;
        font-size: 0.9rem;
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .chat-panel thead {
        display: table;
        width: 100%;
        table-layout: fixed;
    }

    .chat-panel tbody {
        display: table;
        width: 100%;
        table-layout: fixed;
    }

    .chat-panel thead tr {
        background: linear-gradient(90deg, var(--chat-table-grad-from), var(--chat-table-grad-to));
    }

    .chat-panel thead th {
        color: #ffffff;
        font-weight: 600;
        text-transform: uppercase;
        font-size: 0.78rem;
        letter-spacing: 0.03em;
        padding: 10px 14px;
        white-space: nowrap;
        border: none;
    }

    .chat-panel tbody tr {
        background-color: #ffffff;
        transition: background-color 0.15s ease;
    }

    .chat-panel tbody tr:nth-child(even) {
        background-color: #f5f3ff;
    }

    .chat-panel tbody tr:hover {
        background-color: #ede8ff;
    }

    .chat-panel tbody td {
        padding: 9px 14px;
        border-bottom: 1px solid #e9ecef;
        white-space: nowrap;
    }

    .chat-panel tbody tr:last-child td {
        border-bottom: none;
    }

    .chat-panel tbody td:first-child {
        color: var(--chat-table-grad-from);
        font-weight: 600;
    }

    /* ===========================================================
       Agent markdown response — harmonious typographic scale.
       Scoped to `.chat-markdown` so it only affects the HTML that
       ConvertMarkdownToHtml produces for agent messages, never the
       surrounding Radzen chrome. Heading sizes are deliberately
       compressed: inside a chat bubble a theme h1 (~2.5rem) reads
       as oversized, so the whole scale is pulled down and headings
       are differentiated by weight as much as by size.
       =========================================================== */
    .chat-markdown {
        font-size: 0.95rem;
        line-height: 1.6;
        color: inherit;
    }

    /* Collapse the outer margins so the bubble padding controls spacing */
    .chat-markdown > :first-child {
        margin-top: 0;
    }

    .chat-markdown > :last-child {
        margin-bottom: 0;
    }

    .chat-markdown h1,
    .chat-markdown h2,
    .chat-markdown h3,
    .chat-markdown h4,
    .chat-markdown h5,
    .chat-markdown h6 {
        font-weight: 600;
        line-height: 1.3;
        margin: 1em 0 0.4em;
        color: inherit;
    }

    .chat-markdown h1 {
        font-size: 1.3rem;
        font-weight: 700;
    }

    .chat-markdown h2 {
        font-size: 1.15rem;
        color: #4a3a7a;
        padding-bottom: 0.25em;
        border-bottom: 1px solid #ece8f6;
    }

    .chat-markdown h3 {
        font-size: 1.05rem;
        color: #6f4cb3;
    }

    .chat-markdown h4,
    .chat-markdown h5,
    .chat-markdown h6 {
        font-size: 1rem;
    }

    .chat-markdown h5 {
        opacity: 0.85;
    }

    .chat-markdown h6 {
        opacity: 0.75;
        text-transform: uppercase;
        letter-spacing: 0.02em;
        font-size: 0.85rem;
    }

    .chat-markdown p {
        margin: 0 0 0.75em;
    }

    .chat-markdown ul,
    .chat-markdown ol {
        margin: 0 0 0.75em;
        padding-left: 1.4em;
    }

    .chat-markdown li {
        margin-bottom: 0.3em;
    }

    .chat-markdown li > ul,
    .chat-markdown li > ol {
        margin-top: 0.3em;
        margin-bottom: 0.3em;
    }

    .chat-markdown a {
        color: #6f4cb3;
        text-decoration: underline;
        text-underline-offset: 2px;
    }

    .chat-markdown a:hover {
        color: #5a3a99;
    }

    .chat-markdown strong {
        font-weight: 600;
    }

    /* Inline code — pill background */
    .chat-markdown code {
        font-family: "SFMono-Regular", "JetBrains Mono", Consolas, "Liberation Mono", Menlo, monospace;
        font-size: 0.85em;
        background-color: rgba(111, 76, 179, 0.10);
        color: #5a3a99;
        padding: 0.12em 0.4em;
        border-radius: 5px;
        word-break: break-word;
    }

    /* Fenced code block — scrollable, no pill background on the inner code */
    .chat-markdown pre {
        background-color: #f6f5fb;
        border: 1px solid #e6e2f2;
        border-radius: 10px;
        padding: 12px 14px;
        margin: 0 0 0.75em;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .chat-markdown pre code {
        background: none;
        color: inherit;
        padding: 0;
        font-size: 0.85rem;
        line-height: 1.5;
    }

    .chat-markdown blockquote {
        margin: 0 0 0.75em;
        padding: 0.2em 0 0.2em 1em;
        border-left: 3px solid #b793ed;
        color: #555;
        font-style: italic;
    }

    .chat-markdown hr {
        border: none;
        border-top: 1px solid #e6e2f2;
        margin: 1em 0;
    }

    /* Dark mode — agent markdown */
    .rz-material-dark .chat-markdown h2 {
        color: #cdbdf2;
        border-bottom-color: #3b3d55;
    }

    .rz-material-dark .chat-markdown h3 {
        color: #b79aef;
    }

    .rz-material-dark .chat-markdown a {
        color: #d6c2f5;
    }

    .rz-material-dark .chat-markdown a:hover {
        color: #e6d9ff;
    }

    .rz-material-dark .chat-markdown code {
        background-color: rgba(183, 147, 237, 0.18);
        color: #d6c2f5;
    }

    .rz-material-dark .chat-markdown pre {
        background-color: #2d2f3a;
        border-color: #444660;
    }

    .rz-material-dark .chat-markdown blockquote {
        border-left-color: #9e6ffa;
        color: #c8c8d0;
    }

    .rz-material-dark .chat-markdown hr {
        border-top-color: #444660;
    }

    /* Dark mode table */
    .rz-material-dark .chat-panel thead tr {
        background: linear-gradient(90deg, #5a67d8, #6b46c1);
    }

    .rz-material-dark .chat-panel tbody tr {
        background-color: #2d2f3a;
    }

    .rz-material-dark .chat-panel tbody tr:nth-child(even) {
        background-color: #333542;
    }

    .rz-material-dark .chat-panel tbody tr:hover {
        background-color: #3a3d4e;
    }

    .rz-material-dark .chat-panel tbody td {
        border-bottom-color: #444660;
        color: #e0e0e0;
    }

    .rz-material-dark .chat-panel tbody td:first-child {
        color: #9e6ffa;
    }

    /* Embedded HTML preview (iframe) */
    .chat-html-preview {
        margin: 12px 0;
        border-radius: 10px;
        overflow: hidden;
        border: 1px solid #e2e5ea;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    }

    .chat-html-iframe {
        width: 100%;
        min-height: 300px;
        border: none;
        background: #ffffff;
        display: block;
    }

    .rz-material-dark .chat-html-preview {
        border-color: #444660;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    .rz-material-dark .chat-html-iframe {
        background: #1f2937;
    }

    /* Pulsing dots thinking animation */
    .thinking-dots {
        display: flex;
        align-items: center;
        gap: 5px;
        padding: 8px 4px;
    }

    .thinking-dots .dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background-color: #9e9e9e;
        animation: thinking-pulse 1.4s ease-in-out infinite;
    }

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

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

    @keyframes thinking-pulse {
        0%, 80%, 100% {
            opacity: 0.3;
            transform: scale(0.8);
        }
        40% {
            opacity: 1;
            transform: scale(1);
        }
    }

    .thinking-status {
        opacity: 0.7;
        font-size: 0.8rem !important;
    }

    /* In dark mode the RadzenText subtitle color + 0.7 opacity renders the
       SignalR processing-status line nearly invisible on the dark surface.
       Force a light color so it stays legible. */
    .rz-material-dark .thinking-status {
        color: #CECECE !important;
    }

    .document-label {
        color: darkgrey;
    }

    .temp-files-container {
        max-height: 140px;
        overflow-y: auto;
        flex-wrap: nowrap !important;
        width: 100%;
        /* Difensivo, non correttivo: è un flex item con `overflow-y: auto`, e col flex-shrink di
           default (1) cederebbe lui quando lo spazio verticale è conteso. Il difetto del chip fuori
           dal box NON era questo — era l'altezza del card, vedi .send-message-card. */
        flex-shrink: 0;
        /* Hide the scrollbar visually but keep wheel/touch scroll working for the
           rare case of many attachments. With a single chip the natural height is
           slightly under max-height yet `overflow: auto` still reserves a 1-2 px
           gutter on WebKit, surfacing as a tiny floating bar to the right of the
           chip. */
        scrollbar-width: none;
    }

    .temp-files-container::-webkit-scrollbar {
        display: none;
    }

    .active-files-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 4px 10px;
        margin: 0 4px 6px 4px;
        background-color: rgba(183, 147, 237, 0.15);
        color: #6f4cb3;
        border-radius: 12px;
        font-size: 0.78rem;
        font-weight: 500;
        cursor: default;
        user-select: none;
        white-space: nowrap;
        max-width: fit-content;
    }

    .rz-material-dark .active-files-badge {
        background-color: rgba(183, 147, 237, 0.20);
        color: #d6c2f5;
    }

    .temp-file-item {
        max-width: 280px;
        flex-shrink: 0;
    }

    .temp-file-name {
        max-width: 180px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        display: inline-block;
    }

    .document-link {
        color: black !important;
    }

    .rz-material-dark .document-label {
        color: #D1D1D1;
    }

    .rz-material-dark .chat-panel:not(.bubble-wrap) {
        background-color: transparent !important;
    }

    .rz-material-dark .video-type-chat-body .chat-panel:not(.bubble-wrap) {
        background-color: transparent !important
    }

    /* Dark variant of the user bubble. */
    .rz-material-dark .bubble-wrap {
        background: #2E3033 !important;
        box-shadow:
            inset 0 1px 0 rgba(255,255,255,0.05),
            inset 0 -6px 8px -6px rgba(41,127,254,0.14),
            0 0 0 1px rgba(41,127,254,0.14),
            0 1px 10px rgba(41,127,254,0.12);
    }

    .rz-material-dark .bubble-color {
        background:
            radial-gradient(90% 90% at 100% 0%, rgba(255,255,255,0.04) 0%, rgba(255,255,255,0) 65%),
            radial-gradient(100% 100% at 0% 100%, rgba(41,127,254,0.32) 0%, rgba(67,86,255,0.12) 50%, rgba(67,86,255,0) 85%);
    }

    .rz-material-dark .bubble-glass {
        background:
            linear-gradient(180deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0) 22%),
            radial-gradient(120% 100% at 50% 0%, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0) 100%);
    }

    .rz-material-dark .document-link {
        color: #E6E6E6;
    }

    .reference-doc-card {
        overflow: hidden;
    }

    .reference-doc-filename {
        max-width: 180px;
        display: inline-block;
    }

    .reference-doc-title .rz-button-text {
        display: block;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .user-chat-bg {
        background: url('/images/backgrounds/user-message-bg.png');
        background-size: cover;
        background-repeat: no-repeat;
        box-shadow: none;
        padding: 8px 14px !important;
    }

    .user-chat-bg .user-text,
    .bubble-wrap .user-text {
        font-size: 0.95rem;
        line-height: 1.6;
        margin: 0;
    }

    .rz-material-dark .user-chat-bg .user-text {
        color: rgba(0, 0, 0, 0.87);
    }

    /* .bubble-wrap's dark variant (above) turns the bubble itself dark, unlike
       .user-chat-bg's fixed light image background — so its text goes light-on-dark
       instead of staying forced to a dark color. */
    .rz-material-dark .bubble-wrap .user-text {
        color: #E8E8EA;
    }

    .user-message {
        max-width: 600px;
    }

    /* Uniform vertical rhythm between turns. The user turn wrapper carries
       Radzen's `rz-my-2`, the assistant turn wrapper carries none, so gaps were
       uneven. Normalize every top-level turn (both are RadzenStacks = .rz-stack)
       to a single consistent gap. The #chatContainer id gives enough specificity
       to override the rz-my-2 utility without editing the markup. */
    #chatContainer > .rz-stack {
        margin-top: 0;
        margin-bottom: 16px;
    }

    .chat-icon-button {
        width: 30px;
    }

    .custom-switch.rz-switch .rz-switch-circle {
        border-radius: 5px;
    }

    /* Dev mode OFF */
    .custom-switch.rz-state-empty {
        background-color: #ECEDEB;
    }

    /* Dev mode ON */
    .custom-switch.rz-switch-checked {
        background-color: var(--dev-mode-on);
    }

    .rz-switch.custom-switch .rz-switch-circle:before {
        background-image: url('/images/dev-mode-off-logo.svg');
        background-size: 20px;
        background-color: white;
        border-radius: 5px;
    }

    .custom-switch.rz-switch-checked .rz-switch-circle:before {
        background-image: url('/images/dev-mode-on-logo.svg');
        color: var(--dev-mode-on);
    }

    /* These target a Radzen menu popup inside the chat surface. They MUST stay
       scoped to .chat-container: unscoped, `.rz-navigation-menu` leaks app-wide
       and absolutely-positions/translates every RadzenPanelMenu submenu (e.g. the
       nav "Impostazioni" dropdown) off-screen. */
    .chat-container .rz-menu {
        background-color: transparent !important;
        height: 20px;
    }

        .chat-container .rz-menu .rz-navigation-item-icon {
            color: black !important;
        }

        .chat-container .rz-menu .rz-navigation-item-icon-children {
            display: none;
        }

    .chat-container .rz-navigation-menu {
        position: absolute;
        transform: translateX(-80%);
    }

    .rz-material-dark .preview-button {
        color: #BABABA;
    }

    .rz-material-dark .chat-title {
        color: white;
    }

    .send-message-card,
    .send-message-card:focus,
    .send-message-card:focus-within {
        justify-self: center;
        background-color: transparent !important;
        border: 2px solid transparent !important;
        outline: none !important;
        background-image: linear-gradient(white, white), linear-gradient(90deg, #4A90E2, #9B59B6, #4A90E2) !important;
        background-origin: border-box !important;
        background-clip: padding-box, border-box !important;
        animation: glowRotate 3s linear infinite;
        box-shadow: 0 4px 20px rgba(74, 144, 226, 0.3), 0 0 40px rgba(155, 89, 182, 0.2) !important;
        /* Anchor the composer row (paperclip + textbox + send) to the bottom of
           the card so attachment chips and the "Analyzing documents..." indicator
           grow UPWARD into the chat-messages area instead of pushing the textbox
           and buttons downward. Without this, the inner content stacks from the
           top in normal flow and the textbox Y shifts every time a chip/status
           line is added or removed. */
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        flex-shrink: 0;

        /* L'altezza deve comprendere padding e bordo, altrimenti il contenuto esce dal bordo ALTO.
           Misurato nel browser con un allegato presente: il card risolveva a height 72px, che è
           esattamente la somma dei figli (chip 24 + composer 48) — padding 8+8 e bordo 1+1 NON
           inclusi. Con box-sizing: border-box quei 18px vengono sottratti al contenuto, che si
           ritrova 54px per starne 72; e poiché justify-content è flex-end l'eccesso non accorcia il
           box ma esce dal lato superiore, portando il chip dell'allegato 18px sopra il bordo del
           card. Con min-height: fit-content il card risolve a 90px e il chip torna dentro
           (verificato: contentTop e top del chip coincidono).
           Il 50px resta come fallback per browser senza fit-content, ed è comunque inferiore
           all'altezza del solo composer, quindi non vincola nulla. */
        min-height: 50px;
        min-height: fit-content;
    }

    .send-message-card *,
    .send-message-card .rz-textbox,
    .send-message-card .rz-stack,
    .send-message-card input {
        background: transparent !important;
        background-color: transparent !important;
    }

    .send-message-card .rz-textbox {
        border: none !important;
        box-shadow: none !important;
    }

    .rz-material-dark .send-message-card *,
    .rz-material-dark .send-message-card .rz-textbox,
    .rz-material-dark .send-message-card .rz-stack,
    .rz-material-dark .send-message-card input {
        background: transparent !important;
        background-color: transparent !important;
    }

    .rz-material-dark .send-message-card .rz-textbox {
        border: none !important;
        box-shadow: none !important;
    }

    /* No .send-message-card background override here anymore: both the light (line ~904)
       and dark (below) versions of .send-message-card already paint an opaque interior
       themselves — the first layer of their gradient background-image IS a solid fill
       (linear-gradient(white, white) / linear-gradient(#2C2B30, #2C2B30)) clipped to
       padding-box, with the animated rainbow only on the border-box ring. A background
       override here (any selector at equal-or-lower specificity using the "background"
       shorthand) would reset that background-image back to none and kill the glow —
       exactly what happened the first time this was added, in light mode, since it
       silently outranked the un-scoped .send-message-card rule by specificity. Only the
       textbox itself still needs its own explicit fix below (unrelated element/property,
       the glow only paints .send-message-card). */
    /* Matched to the glow's own fill colors below (white / #2C2B30), not the generic
       Radzen --rz-input-background-color var — they don't necessarily resolve to the same
       shade, and the pill has to be indistinguishable from the card behind it. */
    .input-stack #messageTextBox {
        background: #ffffff !important;
        background-color: #ffffff !important;
    }

    .rz-material-dark .input-stack #messageTextBox {
        background: #2C2B30 !important;
        background-color: #2C2B30 !important;
    }

    .rz-material-dark .send-message-card,
    .rz-material-dark .send-message-card:focus,
    .rz-material-dark .send-message-card:focus-within {
        background-color: #2C2B30 !important;
        background-image: linear-gradient(#2C2B30, #2C2B30), linear-gradient(90deg, #4A90E2, #9B59B6, #4A90E2) !important;
        background-origin: border-box !important;
        background-clip: padding-box, border-box !important;
        animation: glowRotate 3s linear infinite;
        box-shadow: 0 4px 20px rgba(74, 144, 226, 0.4), 0 0 40px rgba(155, 89, 182, 0.3) !important;
    }

    @keyframes glowRotate {
        0% {
            background-image: linear-gradient(white, white), linear-gradient(90deg, #4A90E2, #9B59B6, #4A90E2);
        }

        25% {
            background-image: linear-gradient(white, white), linear-gradient(180deg, #4A90E2, #9B59B6, #4A90E2);
        }

        50% {
            background-image: linear-gradient(white, white), linear-gradient(270deg, #4A90E2, #9B59B6, #4A90E2);
        }

        75% {
            background-image: linear-gradient(white, white), linear-gradient(360deg, #4A90E2, #9B59B6, #4A90E2);
        }

        100% {
            background-image: linear-gradient(white, white), linear-gradient(90deg, #4A90E2, #9B59B6, #4A90E2);
        }
    }

    .mic-button {
        background: url('/images/backgrounds/chat-mic-bg.png');
        background-size: cover;
        background-position: center;
    }

    .rz-material-dark .mic-button {
        background: url('/images/backgrounds/chat-mic-bg-dark.png');
        background-size: cover;
        background-position: center;
        /* Light icon on the dark mic background — #444444 was invisible on dark. */
        color: #E6E6E6 !important;
    }

    .video-progress-container {
        margin-top: 10px;
    }

    @media (max-width: 1920px) {
        .floating-chat-container .chat-container {
            max-height: 100vh;
        }

        .chat-container {
            max-height: 80vh;
        }
    }


    @media(max-width: 768px) {
        .input-stack {
            width: 90% !important;
        }
    }

    @media (max-width: 576px) {
        .show-desktop {
            display: none;
        }

        .chat-input-desktop {
            display: none;
        }

        .chat-container {
            padding: 10px 0;
        }

        .max-width-400 {
            max-width: 100%;
        }

        .language-icon {
            font-size: 1.1rem;
        }

        .custom-dropdown {
            font-size: .9rem;
            justify-content: center;
        }

        .preview-button {
            font-size: x-small;
        }

        .chat-title {
            font-size: small;
        }

        .chat-icon-button {
            width: 20px;
        }

        .chat-text {
            font-size: 0.9rem;
        }

        .help-card {
            padding: 1rem;
        }

        .help-subtitle {
            font-size: 0.875rem;
        }

        .help-question-button {
            font-size: 0.875rem !important;
            padding: 0.75rem !important;
        }

        .chat-layout {
            grid-template-columns: 1fr !important;
            grid-template-areas: 'rz-header' 'rz-body' 'rz-sidebar' !important;
        }

        .rz-sidebar.chat-sidebar:not(.mobile-chat-sidebar) {
            width: 100% !important;
            height: auto !important;
            max-height: 70vh !important;
            position: relative !important;
            border-radius: 20px 20px 0 0;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
        }
        
        .send-message-card {
            width: 100% !important;
        }
    }

    /* Floating Help Content */
    .floating-help-content {
        background-color: #f8f9fa;
        border-radius: 15px;
    }

    .rz-material-dark .floating-help-content {
        background-color: #383a45;
    }

    .floating-chat-container .chat-body,
    .floating-chat-container .chat-container,
    .floating-chat-container .floating-help-content,
    .floating-chat-container .rz-body,
    .floating-chat-container .rz-layout,
    .floating-chat-container .rz-card {
        background: transparent !important;
    }

    .rz-material-dark .floating-chat-container .chat-body,
    .rz-material-dark .floating-chat-container .chat-container,
    .rz-material-dark .floating-chat-container .floating-help-content,
    .rz-material-dark .floating-chat-container .rz-body,
    .rz-material-dark .floating-chat-container .rz-layout,
    .rz-material-dark .floating-chat-container .rz-card {
        background: transparent !important;
    }

    .floating-chat-container .chat-markdown,
    .floating-chat-container .chat-text,
    .floating-chat-container .document-link,
    .floating-chat-container .reference-doc-title .rz-button-text {
        color: #1A1A1A !important;
    }

    .rz-material-dark .floating-chat-container .chat-markdown,
    .rz-material-dark .floating-chat-container .chat-text,
    .rz-material-dark .floating-chat-container .document-link,
    .rz-material-dark .floating-chat-container .reference-doc-title .rz-button-text {
        color: #F0F0F0 !important;
    }

    .floating-chat-container .reference-doc-card {
        max-width: 240px !important;
    }

    .rz-material-dark .help-icon {
        color: #adb5bd;
    }

    .help-subtitle {
        color: #6c757d;
        line-height: 1.6;
        font-size: 1rem;
    }

    .rz-material-dark .help-subtitle {
        color: #adb5bd;
    }

    .rz-material-dark .floating-help-title {
        color: #F8F8F8;
    }

    .help-question-button {
        text-transform: none;
        width: 100% !important;
        padding: 1rem !important;
        border-radius: 10px !important;
        border: 1px solid #e9ecef !important;
        color: #495057 !important;
        font-size: 1rem !important;
        margin-bottom: 0.5rem !important;
        background-color: #f8f9fa !important;
    }

    .rz-material-dark .help-question-button {
        color: #e9ecef !important;
        border-color: #495057 !important;
        background-color: #495057 !important;
    }

    .help-question-button:hover {
        background-color: #e9ecef !important;
        color: #212529 !important;
        border-color: var(--brand-teal) !important;
    }

    .rz-material-dark .help-question-button:hover {
        background-color: #6c757d !important;
        color: #f8f9fa !important;
        border-color: var(--brand-teal) !important;
    }

    /* Mobile Video Chat Styles */
    .mobile-swipe-container {
        position: relative;
        width: 100%;
        height: 35rem;
    }

    /* Desktop/Web chat container (used when not on a mobile device) */
    .chat-container-wrapper {
        position: relative;
        width: 100%;
        height: 100%;
        overflow: hidden;
    }

        /* Reset grid-area and height for desktop embedded chat */
        .chat-container-wrapper .chat-container {
            grid-area: unset !important;
            height: 100% !important;
            width: 100%;
            max-height: none !important;
            overflow-y: auto;
        }

    .swipe-section {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        transform: translate3d(0, 0, 0);
        will-change: transform;
        overflow-y: auto;
        padding: 1rem;
    }

    .mobile-swipe-container.dragging .swipe-section {
        transition: none !important;
    }

    .video-section {
        height: 100% !important;
        transform: translate3d(100%, 0, 0);
    }

    .chat-section {
        transform: translate3d(0, 0, 0);
    }

    .video-section.active {
        transform: translate3d(0, 0, 0);
    }

    .chat-section.active {
        transform: translate3d(0, 0, 0);
    }

    .video-section:not(.active) {
        transform: translate3d(100%, 0, 0);
    }

    .chat-section:not(.active) {
        transform: translate3d(-100%, 0, 0);
    }

    .main-video-container {
        width: 100%;
        margin-bottom: 1rem;
    }

    .mobile-video-player {
        width: 100%;
        height: auto;
        max-height: 40vh;
        border-radius: 15px;
        background-color: #000;
    }

    .no-video-placeholder {
        width: 100%;
        height: 200px;
        background-color: #f5f5f5;
        border-radius: 15px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #666;
    }

    .highlights-container {
        background-color: #f9f9f9;
        border-radius: 15px;
        margin-bottom: 1rem;
        overflow: hidden;
    }

    .rz-material-dark .highlights-container {
        background-color: #383a45;
    }

    .highlights-header {
        padding: 1rem;
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid #e0e0e0;
    }

    .rz-material-dark .highlights-header {
        border-bottom-color: #555;
    }

    .highlights-title {
        margin: 0;
        color: #333;
    }

    .rz-material-dark .highlights-title {
        color: #fff;
    }

    .highlights-toggle-icon {
        color: #666;
        font-size: 1.5rem;
    }

    .rz-material-dark .highlights-toggle-icon {
        color: #ccc;
    }

    .highlights-content {
        padding: 0.5rem 1rem 1rem 1rem;
    }

    .highlight-plus-icon {
        color: #007bff;
        font-size: 1.2rem;
    }

    .highlight-time {
        background-color: #007bff;
        color: white;
        padding: 0.25rem 0.75rem;
        border-radius: 15px;
        font-size: 0.875rem;
        font-weight: bold;
    }

    .alt-videos-container {
        background-color: #f9f9f9;
        border-radius: 15px;
        padding: 1rem;
        overflow: hidden;
    }

    .rz-material-dark .alt-videos-container {
        background-color: #383a45;
    }

    .alt-videos-title {
        margin: 0 0 1rem 0;
        color: #333;
    }

    .rz-material-dark .alt-videos-title {
        color: #fff;
    }

    .alt-videos-scroll {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
        max-height: 300px;
        overflow-y: auto;
    }

    .alt-video-item {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 0.75rem;
        background-color: white;
        border-radius: 10px;
        cursor: pointer;
        transition: all 0.2s;
    }

    .rz-material-dark .alt-video-item {
        background-color: #2c2c2c;
    }

    .alt-video-item:hover {
        background-color: #f0f0f0;
        transform: translateY(-1px);
    }

    .rz-material-dark .alt-video-item:hover {
        background-color: #404040;
    }

    .alt-video-item.current {
        border: 2px solid #007bff;
        background-color: #e3f2fd;
    }

    .rz-material-dark .alt-video-item.current {
        background-color: #1a237e;
        border-color: #448aff;
    }

    .alt-video-preview {
        position: relative;
        width: 80px;
        height: 60px;
        border-radius: 8px;
        overflow: hidden;
        flex-shrink: 0;
    }

    .alt-video-thumbnail {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .alt-video-placeholder {
        width: 100%;
        height: 100%;
        background-color: #e0e0e0;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #666;
    }

    .video-overlay {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.3);
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        transition: opacity 0.2s;
    }

    .alt-video-item:hover .video-overlay {
        opacity: 1;
    }

    .play-icon {
        color: white;
        font-size: 1.5rem;
    }

    .alt-video-info {
        flex: 1;
        overflow: hidden;
    }

    .alt-video-title {
        margin: 0;
        color: #333;
        font-size: 0.875rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .rz-material-dark .alt-video-title {
        color: #fff;
    }

    .chat-header-mobile {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem;
        background-color: #f9f9f9;
        border-radius: 15px;
        margin-bottom: 1rem;
    }

    .rz-material-dark .chat-header-mobile {
        background-color: #383a45;
    }

    .chat-section-title {
        margin: 0;
        color: #333;
    }

    .rz-material-dark .chat-section-title {
        color: #fff;
    }

    .highlights-shortcut-btn {
        color: #007bff !important;
        font-size: 0.875rem !important;
    }

    .mobile-chat-container {
        height: calc(100% - 80px);
        display: flex;
        flex-direction: column;
    }

    .mobile-chat-messages {
        flex: 1;
        overflow-y: auto;
        padding: 0.5rem;
    }

    .mobile-chat-panel {
        max-width: 100%;
        margin-bottom: 0.5rem !important;
    }

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

    .mobile-overlay-input {
        position: fixed;
        bottom: env(safe-area-inset-bottom, 10px);
        left: 20px;
        right: 20px;
        z-index: 1000;
    }

    .input-stack {
        justify-self: center; overflow: hidden;
        background: transparent !important;
        flex: 0 0 auto;
        align-self: center;
    }

    /* CTA Suggestions Styles */
    .cta-suggestion-button {
        background-color: #F9FAFF !important;
        border: 1px solid #90D6DD !important;
        padding: 0.35rem 0.75rem;
        cursor: pointer;
        transition: all 0.2s ease;
        text-transform: none !important;
        flex-shrink: 0;
    }

    .cta-suggestion-button:hover {
        transform: translateY(-1px);
    }

    .rz-material-dark .cta-suggestion-button {
        background-color: #1F2128 !important;
        border: 1px solid #4FAAB2 !important;
    }

    .cta-suggestions-container {
        padding: 0.5rem;
        width: 100%;
        max-width: 100% !important;
        overflow-x: auto;
        overflow-y: hidden;
        flex-wrap: nowrap !important;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
        scrollbar-color: #90D6DD transparent;
        box-sizing: border-box;
    }

    .cta-suggestions-container::-webkit-scrollbar {
        height: 6px;
    }

    .cta-suggestions-container::-webkit-scrollbar-track {
        background: transparent;
    }

    .cta-suggestions-container::-webkit-scrollbar-thumb {
        background-color: #90D6DD;
        border-radius: 3px;
    }

    .rz-material-dark .cta-suggestions-container {
        scrollbar-color: #4FAAB2 transparent;
    }

    .rz-material-dark .cta-suggestions-container::-webkit-scrollbar-thumb {
        background-color: #4FAAB2;
    }

    /* Composer skill picker - bottom-right of the taller composer toolbar row.
       .input-stack (the composer's flex wrapper) has overflow: hidden, which would clip the
       popup since it intentionally overflows above the composer's box. Only relax it while
       the popup is actually in the DOM, so .input-stack keeps its default clipping otherwise. */
    .input-stack:has(.skill-picker-popup) {
        overflow: visible;
    }

    .skill-picker {
        position: relative;
    }

    .skill-picker-trigger {
        text-transform: none !important;
        white-space: nowrap;
    }

    .skill-picker-label {
        opacity: 0.65;
        margin-right: 0.3rem;
    }

    .skill-picker-value {
        font-weight: 600;
        max-width: 140px;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .skill-picker-popup {
        position: absolute;
        bottom: calc(100% + 0.5rem);
        right: 0;
        min-width: 220px;
        max-width: 320px;
        max-height: 260px;
        overflow-y: auto;
        z-index: 20;
    }

    .send-message-card .skill-picker-popup {
        background: #F9FAFF !important;
    }

    .rz-material-dark .send-message-card .skill-picker-popup {
        background: #1F2128 !important;
    }

    .skill-picker-hint {
        opacity: 0.65;
    }

    .skill-picker-item {
        padding: 0.4rem 0.5rem;
        border-radius: 6px;
        cursor: pointer;
    }

    .skill-picker-item:hover {
        background-color: var(--rz-base-200, #f0f0f0) !important;
    }

    .rz-material-dark .skill-picker-item:hover {
        background-color: #2C2E38 !important;
    }

    /* Selected row: same grey fill as :hover (not a distinct accent color) — the checkmark
       icon is what marks it as selected. */
    .skill-picker-item.selected {
        background-color: var(--rz-base-200, #f0f0f0) !important;
        font-weight: 600;
    }

    .rz-material-dark .skill-picker-item.selected {
        background-color: #2C2E38 !important;
    }

    @media (min-width: 992px) {
        .cta-suggestions-container {
            flex-wrap: wrap !important;
            overflow-x: hidden;
            overflow-y: auto;
            max-height: calc(2 * (1.75rem + 0.7rem + 2px) + 0.5rem);
            scrollbar-width: thin;
        }

        .cta-suggestions-container::-webkit-scrollbar {
            width: 4px;
            height: 4px;
        }
    }

    /* Chat messages scrollbar: intentionally left to the browser's NATIVE
       overlay scrollbars (overflow-y:auto on #chatContainer). Styling
       ::-webkit-scrollbar opts the element into classic (always-present)
       scrollbars, which show a persistent bar even when there is no overflow
       — that was the regression. No custom scrollbar CSS here on purpose. */

    /* ===========================================================
       Extracted from Components/Shared/ChatMessageList.razor
       (inline <style> moved here for CSS consolidation).
       =========================================================== */
    .chat-icon-button {
        width: 30px;
        height: 30px;
        flex-shrink: 0;
        margin-right: 8px;
    }