/* ===========================================================================
 * AI Assistant chat stylesheet
 * Used by the standalone page (ai/assistant/index.php) and by the topbar
 * popover (#topmenu-ai-popover shell emitted by top_menu_ai() in main.inc.php).
 *
 * Colors are mapped onto the theme CSS custom properties defined by the theme
 * (htdocs/theme/eldy/global.inc.php) so the chat follows the active palette,
 * including dark mode, with hardcoded values only as fallbacks.
 * ======================================================================== */

.ai-chat-container,
.ai-popover {
    --ai-accent: var(--colortextlink, #2b6cb0);
    --ai-surface: var(--colorbackbody, #fff);
    --ai-surface-2: var(--colorbackgrey, #f4f5f7);
    --ai-text: var(--colortext, #333);
    --ai-border: var(--inputbordercolor, rgba(0, 0, 0, 0.15));
    --ai-input-bg: var(--inputbackgroundcolor, #fff);
}

/* Avatars, user bubble and send button follow the configurable top menu colors
 * (var(--colorbackhmenu1) / var(--colortextbackhmenu)) of the Dolibarr theme. */

/* Container */
.ai-chat-container {
    background: var(--ai-surface);
    color: var(--ai-text);
    border: 1px solid var(--ai-border);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    height: 70vh;
    min-height: 650px;
}

/* Full page (body.ai-fullpage): the chat is no longer a centered card but fills
 * the whole content area edge-to-edge. The .fiche wrapper padding is removed so
 * the assistant header/input reach the borders; an inner column keeps the
 * messages and input at a comfortable reading width (like the mockup). */
body.ai-fullpage #id-container,
body.ai-fullpage #id-right,
body.ai-fullpage div.fiche {
    margin: 0;
    padding: 0;
    height: 100%;
}

/* Never let this page scroll horizontally: a 1px horizontal overflow would
 * show a bottom scrollbar that eats vertical space and triggers a vertical
 * scrollbar in turn (vertical body scroll stays available for long menus). */
body.ai-fullpage {
    overflow-x: hidden;
}

.ai-chat-container:not(.ai-in-popover) {
    border: 0;
    border-radius: 0;
    box-shadow: none;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    /* Fallback height (JS sets the exact value to fill down to the viewport
     * bottom, see initAiAssistant); avoids a scrollbar/blank strip. */
    height: calc(100vh - 52px);
    min-height: 420px;
}

/* Center an 820px reading column via horizontal padding. Using padding (the %
 * resolves against the container width) keeps the messages, the input pill and
 * the footer note on the exact same column, unaffected by the chat-history
 * scrollbar (which lives far out in the right padding zone). */
.ai-chat-container:not(.ai-in-popover) .chat-history,
.ai-chat-container:not(.ai-in-popover) .chat-controls {
    padding-left: max(16px, calc(50% - 410px));
    padding-right: max(16px, calc(50% - 410px));
}

/* Full page: the input pill floats on the page, no divider line above it. The
 * bottom breathing room lives on the status bar below (so the status line sits
 * right under the input, not pushed far down). */
.ai-chat-container:not(.ai-in-popover) .chat-controls {
    border-top: none;
    padding-bottom: 6px;
}

/* Full page: status line centered just under the input; keep the bottom
 * breathing room even when the line is empty (text-only mode). */
.ai-chat-container:not(.ai-in-popover) #status-bar,
.ai-chat-container:not(.ai-in-popover) #status-bar:empty {
    text-align: center;
    padding: 2px 16px 30px;
    min-height: 0;
}

/* Header */
.chat-header {
    padding: 10px 14px;
    border-bottom: 1px solid var(--ai-border);
    background: #f8f8f8;
    border-radius: 12px 12px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.chat-header h2 {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ai-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Popover only: the title links to the full standalone page */
.ai-header-link {
    color: inherit;
    text-decoration: none;
}

.ai-header-link:hover {
    color: var(--ai-accent);
}

/* Full page: assistant identity block (avatar + title + online status) */
.chat-header-id {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.chat-header-avatar {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: var(--colorbackhmenu1, #2b2f3a);
    color: var(--colortextbackhmenu, #fff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.chat-header-text {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
    min-width: 0;
}

.chat-header-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--ai-text);
}

/* Subtle line under the title showing the LLM model currently in use */
.chat-header-status {
    font-size: 0.72rem;
    color: var(--ai-text);
    opacity: 0.6;
    display: flex;
    align-items: center;
    gap: 5px;
}

.chat-header-status i {
    font-size: 0.7rem;
    opacity: 0.8;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

/* Mode selector restyled as a pill: a sparkle on the left, a chevron on the
 * right (both as background SVGs so the native <select> is kept for a11y). */
.engine-select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    padding: 6px 28px 6px 30px;
    border-radius: 5px;
    border: 1px solid var(--ai-border);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--ai-text);
    background-color: var(--ai-surface);
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%237c5cff'%3E%3Cpath d='M12 2l2.2 6.3L20.5 11l-6.3 2.2L12 20l-2.2-6.3L3.5 11l6.3-2.2z'/%3E%3C/svg%3E"),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat, no-repeat;
    background-position: left 9px center, right 9px center;
    background-size: 14px 14px, 12px 12px;
    max-width: 200px;
    min-width: 0;
    cursor: pointer;
}

.engine-select:hover {
    background-color: var(--ai-surface-2);
}

/* Header buttons (Clear, and popover window controls) */
.icon-btn {
    background: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
    padding: 5px 8px;
    cursor: pointer;
    color: var(--ai-text);
    opacity: 0.7;
    transition: opacity 0.15s, background-color 0.15s;
    font-size: 0.85em;
    text-decoration: none !important;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.icon-btn:hover {
    background: var(--ai-surface-2);
    opacity: 1;
}

/* Clear button: same pill look as the engine-select next to it */
#clear-btn {
    padding: 6px 14px;
    border-radius: 5px;
    border: 1px solid var(--ai-border);
    background: var(--ai-surface);
    color: var(--ai-text);
    opacity: 1;
    font-size: 0.8rem;
    font-weight: 500;
    gap: 6px;
}

#clear-btn:hover {
    background: var(--ai-surface-2);
}

/* Chat History */
.chat-history {
    flex-grow: 1;
    /* min-height:0 lets a long conversation scroll internally instead of pushing
     * the input area off the fixed-height container (flexbox min-height:auto fix). */
    min-height: 0;
    overflow-y: auto;
    padding: 16px;
    background: var(--ai-surface);
    scroll-behavior: smooth;
    display: flex;
    flex-direction: column;
}

/* Messages */
.msg {
    margin-bottom: 12px;
    padding: 10px 14px;
    border-radius: 14px;
    max-width: 85%;
    line-height: 1.5;
    font-size: 0.92rem;
    position: relative;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* User & bot messages are rows: [avatar] [bubble]. The visual bubble styling
 * moves to .msg-bubble; the .msg row itself is a transparent flex container. */
.msg.user,
.msg.bot {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    max-width: 100%;
    padding: 0;
    margin-bottom: 18px;
    background: transparent;
    border-radius: 0;
}

.msg.user {
    flex-direction: row-reverse;
}

.msg-avatar {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 600;
}

.msg-avatar.bot {
    background: var(--colorbackhmenu1, #2b2f3a);
    color: var(--colortextbackhmenu, #fff);
}

.msg-avatar.user {
    background: var(--ai-surface);
    color: var(--ai-text);
    border: 1px solid var(--ai-border);
}

.msg-bubble {
    padding: 11px 15px;
    border-radius: 14px;
    line-height: 1.5;
    word-wrap: break-word;
    overflow-wrap: break-word;
    min-width: 0;
}

.msg.user .msg-bubble {
    background: var(--colorbackhmenu1, #2b2f3a);
    color: var(--colortextbackhmenu, #fff);
    /* Squared corner on the top side nearest the avatar (top-right for the user) */
    border-top-right-radius: 4px;
    max-width: 78%;
}

.msg.user .msg-bubble a {
    color: #fff;
    text-decoration: underline;
}

.msg.bot .msg-bubble {
    background: var(--ai-surface);
    color: var(--ai-text);
    border: 1px solid var(--ai-border);
    /* Squared corner on the top side nearest the avatar (top-left for the bot) */
    border-top-left-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
    max-width: calc(100% - 40px);
}

.msg.system {
    text-align: center;
    background: transparent;
    color: var(--ai-text);
    opacity: 0.6;
    font-size: 0.82rem;
    font-style: italic;
    padding: 4px;
    margin: 8px auto;
    border: none;
    max-width: 100%;
}

/* ---------------------------------------------------------------------------
 * Welcome / empty-state screen (full page only). Centered vertically in the
 * flex column via margin:auto; hidden by JS once the conversation starts.
 * ------------------------------------------------------------------------- */
.chat-welcome {
    margin: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
    width: 100%;
    max-width: 720px;
    padding: 24px 0;
}

.chat-welcome-avatar {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--colorbackhmenu1, #2b2f3a);
    color: var(--colortextbackhmenu, #fff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.chat-welcome-title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ai-text);
}

.chat-welcome-subtitle {
    margin: -6px 0 6px;
    font-size: 0.92rem;
    color: var(--ai-text);
    opacity: 0.6;
}

.chat-welcome-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    width: 100%;
}

.ai-quick-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    text-align: left;
    padding: 14px 16px;
    border: 1px solid var(--ai-border);
    border-radius: 8px;
    background: var(--ai-surface);
    color: var(--ai-text);
    cursor: pointer;
    transition: background-color 0.15s, border-color 0.15s;
}

.ai-quick-card:hover {
    background: var(--ai-surface-2);
    border-color: var(--ai-accent);
}

.ai-quick-icon {
    flex-shrink: 0;
    color: var(--ai-text);
    opacity: 0.7;
    font-size: 1rem;
    margin-top: 2px;
}

.ai-quick-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.ai-quick-title {
    font-weight: 600;
    font-size: 0.92rem;
}

.ai-quick-desc {
    font-size: 0.8rem;
    color: var(--ai-text);
    opacity: 0.6;
}

@media (max-width: 560px) {
    .chat-welcome-actions {
        grid-template-columns: 1fr;
    }
}

.msg.error {
    background: #ffebee;
    color: #c62828;
    margin: 10px auto;
    text-align: center;
    border: 1px solid #ef9a9a;
}

.msg.clarification {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
    margin: 10px auto;
}

.msg.confirmation {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
    margin: 10px auto;
}

/* Typing indicator: bot row whose bubble holds three animated dots */
.typing-indicator .msg-bubble {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 15px 16px;
}

.typing-indicator .msg-bubble span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ai-text);
    opacity: 0.4;
    animation: ai-typing 1.2s infinite ease-in-out;
}

.typing-indicator .msg-bubble span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator .msg-bubble span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes ai-typing {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.4;
    }

    30% {
        transform: translateY(-5px);
        opacity: 0.9;
    }
}

/* Footer / Controls */
.chat-controls {
    padding: 12px 14px;
    background: var(--ai-surface);
    border-top: 1px solid var(--ai-border);
    border-radius: 0 0 12px 12px;
    width: 100%;
    box-sizing: border-box;
    flex-shrink: 0;
}

/* The whole input lives in a single rounded pill */
.chat-input-pill {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    border: 1px solid var(--ai-border);
    background: var(--ai-input-bg);
    border-radius: 5px;
    padding: 5px 6px 5px 12px;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.chat-input-pill:focus-within {
    border-color: var(--ai-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--ai-accent) 18%, transparent);
}

#mic-wrapper,
#upload-wrapper {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    /* Prevents buttons from squishing when the screen is small */
}

/* Round Buttons (Mic & Upload) */
.round-btn {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: 50%;
    border: 1px solid var(--ai-border);
    background: var(--ai-input-bg);
    color: var(--ai-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all 0.2s ease;
    outline: none;
}

.round-btn:hover {
    background: var(--ai-surface-2);
}

/* Mic Specific States */
.mic-btn.listening {
    background: #ff5252;
    color: white;
    border-color: #ff5252;
    animation: pulse 1.5s infinite;
}

.mic-btn.processing {
    background: #ff9800;
    color: white;
    border-color: #ff9800;
    animation: spin 1s infinite linear;
    cursor: pointer !important;
}

.mic-btn.processing:hover {
    background: #f57c00;
    border-color: #f57c00;
}

.mic-btn.cancelling {
    background: #9e9e9e;
    color: white;
    border-color: #9e9e9e;
    animation: spin 1s infinite linear;
}

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

/* Input Field */
#user-input::placeholder {
	font-size: 0.95rem;
}
@media (max-width: 768px) {
	#user-input::placeholder {
    	opacity: 0;
	}
}

#user-input {
    flex-grow: 1;
    padding: 11px 15px;
    border: 1px solid var(--ai-border);
    background: var(--ai-input-bg);
    color: var(--ai-text);
    border-radius: 20px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;

    /* Allow expansion, but set limits */
    height: 40px;
    min-height: 40px;
    max-height: 150px;

    box-sizing: border-box;
    min-width: 0;

    /* Prevent manual resize and hide scrollbar until max height */
    resize: none;
    overflow-y: auto;

    /* Hide the scrollbar while keeping scroll (Firefox + IE/Edge legacy) */
    scrollbar-width: none;
    -ms-overflow-style: none;

    font-family: inherit;
    font-size: 0.92rem;
    line-height: 1.4;
}

/* Hide the scrollbar while keeping scroll (Chrome/Safari/WebKit) */
#user-input::-webkit-scrollbar {
    display: none;
}

#user-input:focus {
    border-color: var(--ai-accent);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--ai-accent) 20%, transparent);
}

/* Inside the pill the textarea is borderless/transparent (the pill shows focus) */
.chat-input-pill #user-input {
    border: none;
    background: transparent;
    border-radius: 0;
    padding: 9px 4px;
}

.chat-input-pill #user-input:focus {
    border: none;
    box-shadow: none;
}

/* Attach/mic buttons are flat inside the pill, but keep their recording states */
.chat-input-pill .round-btn {
    width: 34px;
    height: 34px;
    min-width: 34px;
    border: none;
    box-shadow: none;
    font-size: 1.05rem;
}

/* The pill bottom-aligns its items (so the send button stays at the bottom when
 * the textarea grows); the left mic/upload icons must stay vertically centered
 * on a single-line input instead of sitting low. */
.chat-input-pill #mic-wrapper,
.chat-input-pill #upload-wrapper {
    align-self: center;
}

.chat-input-pill .round-btn:not(.listening):not(.processing):not(.cancelling) {
    background: transparent;
    color: var(--ai-text);
    opacity: 0.7;
}

.chat-input-pill .round-btn:not(.listening):not(.processing):not(.cancelling):hover {
    background: var(--ai-surface-2);
    opacity: 1;
}

/* Circular send button (dark) */
#send-btn {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    min-width: 44px;
    padding: 0;
    border: none;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--colorbackhmenu1, #2b2f3a);
    color: var(--colortextbackhmenu, #fff);
    font-size: 0.95rem;
    cursor: pointer;
    transition: filter 0.15s;
}

#send-btn:hover {
    filter: brightness(1.2);
}

/* Animations */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 82, 82, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(255, 82, 82, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(255, 82, 82, 0);
    }
}

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

/* Helpers */
.ai-hidden {
    display: none !important;
}

#status-bar {
    font-size: 0.75rem;
    color: var(--ai-text);
    opacity: 0.6;
    text-align: right;
    padding: 0 16px 8px;
    background: var(--ai-surface);
    border-radius: 0 0 12px 12px;
    min-height: 18px;
    flex-shrink: 0;
}

/* Collapse the status bar when empty so it leaves no blank space below the input */
#status-bar:empty {
    padding: 0;
    min-height: 0;
}

/* Tables in chat */
.chat-table-wrap {
    overflow-x: auto;
    margin-top: 8px;
}

.chat-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88em;
}

.chat-table th {
    background: transparent;
    padding: 8px 10px;
    text-align: left;
    border-bottom: 1px solid var(--ai-border);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--ai-text);
    opacity: 0.55;
    white-space: nowrap;
}

.chat-table td {
    padding: 9px 10px;
    border-bottom: 1px solid var(--ai-border);
}

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

.chat-table tbody tr:hover td {
    background: var(--ai-surface-2);
}

/* Reference links inside chat tables/results */
.chat-link {
    color: var(--ai-accent);
    text-decoration: none;
    font-weight: 600;
}

.chat-link:hover {
    text-decoration: underline;
}

/* Single-object result rendered as a key/value list */
.chat-object {
    background: var(--ai-surface-2);
    padding: 10px 12px;
    border-radius: 8px;
}

.chat-object ul {
    padding-left: 18px;
    margin: 0;
}

/* Toolbar under a result (e.g. Download PDF / Open record) */
.msg-toolbar {
    margin-top: 8px;
    border-top: 1px solid var(--ai-border);
    padding-top: 6px;
    text-align: right;
}

/* Action buttons in messages */
.msg-actions {
    margin-top: 10px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.msg-action-btn {
    padding: 5px 12px;
    border-radius: 6px;
    border: 1px solid var(--ai-border);
    background: var(--ai-surface);
    color: var(--ai-text);
    cursor: pointer;
    font-size: 0.85rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: all 0.2s;
}

.msg-action-btn:hover {
    background: var(--ai-surface-2);
}

.msg-action-btn.primary {
    background: var(--ai-accent);
    color: white;
    border-color: var(--ai-accent);
}

.msg-action-btn.primary:hover {
    filter: brightness(0.9);
}

.msg-action-btn.danger {
    background: #dc3545;
    color: white;
    border-color: #dc3545;
}

.msg-action-btn.danger:hover {
    background: #c82333;
    border-color: #c82333;
}

/* Confirmation Dialog Styles */
.confirmation-dialog {
    border: 1px solid var(--ai-border);
    border-radius: 8px;
    overflow: hidden;
    margin: 10px 0;
    background: var(--ai-surface);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.confirmation-header {
    background: var(--ai-surface-2);
    padding: 10px 15px;
    border-bottom: 1px solid var(--ai-border);
    display: flex;
    align-items: center;
    gap: 8px;
}

.confirmation-header i {
    color: #17a2b8;
}

.confirmation-body {
    padding: 15px;
}

.confirmation-details {
    background: var(--ai-surface-2);
    padding: 8px;
    border-radius: 4px;
    font-size: 0.9em;
    margin: 10px 0;
}

.voice-hint {
    font-size: 0.85em;
    color: var(--ai-text);
    opacity: 0.7;
    margin-top: 10px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.voice-feedback {
    background: #fff3cd;
    color: #856404;
    padding: 8px 12px;
    border-radius: 4px;
    margin-top: 10px;
    font-size: 0.85em;
    display: flex;
    align-items: center;
    gap: 5px;
}

.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
}

.btn-secondary {
    background-color: #6c757d;
    border-color: #6c757d;
}


/* ===========================================================================
 * Topbar popover (#topmenu-ai-popover, shell emitted by top_menu_ai()).
 *
 * Anchored top-right under the top menu (--ai-popover-top is set by the
 * bootstrap JS from the real topbar height). Show/hide uses opacity +
 * visibility instead of display so the width/height transition of the
 * .expanded state can animate. z-index 1010 = above the menu bar (eldy).
 * ======================================================================== */
.ai-popover {
    position: fixed;
    top: var(--ai-popover-top, 48px);
    right: 12px;
    width: 460px;
    height: min(560px, calc(100vh - var(--ai-popover-top, 48px) - 16px));
    z-index: 1010;
    display: flex;
    flex-direction: column;
    background: var(--ai-surface);
    border: 1px solid var(--ai-border);
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s,
        width 0.25s ease, height 0.25s ease;
}

.ai-popover.open {
    opacity: 1;
    visibility: visible;
    transform: none;
}

/* Enlarged state: same top-right anchor, grows leftwards/downwards */
.ai-popover.expanded {
    width: min(720px, calc(100vw - 24px));
    height: min(80vh, calc(100vh - var(--ai-popover-top, 48px) - 16px));
}

.ai-popover-body {
    flex: 1;
    min-height: 0;
    display: flex;
}

.ai-popover-loading {
    margin: auto;
    font-size: 1.4rem;
    color: var(--ai-text);
    opacity: 0.5;
}

/* Chat container injected inside the popover: fill the panel, drop the
 * standalone chrome. min-height:0 lets .chat-history shrink and scroll
 * internally instead of overflowing the panel (flexbox min-height:auto fix). */
.ai-in-popover {
    width: 100%;
    height: 100%;
    min-height: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.ai-in-popover .chat-history {
    min-height: 0;
}

/* The rich full-page chrome (avatars, wide column) is dropped in the narrow
 * popover: hide avatars and let bubbles use the available width. */
.ai-in-popover .msg-avatar {
    display: none;
}

.ai-in-popover .msg.bot .msg-bubble {
    max-width: 100%;
}

.ai-in-popover .msg.user .msg-bubble {
    max-width: 88%;
}

/* Compact header in the popover: keep controls tight, hide the Clear label */
.ai-in-popover .ai-btn-label {
    display: none;
}

.ai-in-popover .engine-select {
    max-width: 110px;
}

.ai-popover.expanded .engine-select {
    max-width: 160px;
}

/* Small screens: full-width panel */
@media (max-width: 480px) {

    .ai-popover,
    .ai-popover.expanded {
        right: 0;
        left: 0;
        width: auto;
        border-radius: 0;
        height: calc(100vh - var(--ai-popover-top, 48px));
    }
}