/* ---------- Full-height two-pane shell ---------- */
.conv-anim {
    min-height: 0;
}

.conv-shell {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    overflow: hidden;
    background: var(--mud-palette-surface);
}

.conv-list-pane {
    width: 326px;
    flex-shrink: 0;
    border-right: 1px solid var(--mud-palette-lines-default);
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.conv-thread-pane {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    background: var(--mud-palette-background-gray);
}

/* ---------- List pane: search + filters ---------- */
.conv-search-wrap {
    padding: 10px 12px;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    flex-shrink: 0;
}

.conv-filter-row {
    display: flex;
    gap: 6px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    flex-shrink: 0;
}

.filter-chip {
    border: none;
    background: transparent;
    color: var(--mud-palette-text-secondary);
    font-family: inherit;
    font-size: 12px;
    font-weight: 500;
    padding: 4px 11px;
    border-radius: 20px;
    cursor: pointer;
    transition: background 0.12s ease, color 0.12s ease;
}

    .filter-chip:hover {
        background: var(--mud-palette-action-default-hover);
    }

    .filter-chip.active {
        color: var(--mud-palette-primary);
        background: rgba(79, 70, 229, 0.10);
        font-weight: 600;
    }

.conv-agent-filter {
    padding: 8px 12px;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    flex-shrink: 0;
}

/* ---------- List pane: scrollable list ---------- */
.conv-list {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.conv-empty-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--mud-palette-text-disabled);
    padding: 48px 16px;
}

.conv-load-more {
    padding: 8px 12px;
}

/* ---------- Conversation list item ---------- */
.conv-item {
    display: flex;
    gap: 11px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    border-left: 3px solid transparent;
    cursor: pointer;
    transition: background 0.12s ease;
}

    .conv-item:hover {
        background: var(--mud-palette-action-default-hover);
    }

    .conv-item.active {
        background: rgba(79, 70, 229, 0.06);
        border-left-color: var(--mud-palette-primary);
    }

.conv-avatar-wrap {
    position: relative;
    flex-shrink: 0;
}

.conv-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 13px;
    font-weight: 600;
}

.conv-channel-badge {
    position: absolute;
    right: -3px;
    bottom: -3px;
    font-size: 13px !important;
    color: var(--mud-palette-text-secondary);
    background: var(--mud-palette-surface);
    border-radius: 50%;
    padding: 2px;
    box-sizing: content-box;
}

.conv-body {
    flex: 1;
    min-width: 0;
}

.conv-top {
    display: flex;
    align-items: center;
    gap: 6px;
}

.conv-name {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.conv-time {
    font-size: 11px;
    color: var(--mud-palette-text-secondary);
    flex-shrink: 0;
}

.conv-preview {
    font-size: 12.5px;
    color: var(--mud-palette-text-secondary);
    line-height: 1.4;
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.conv-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 6px;
}

/* WhatsApp-style per-row unread count bubble */
.conv-unread {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 9px;
    background: var(--mud-palette-primary);
    color: var(--mud-palette-primary-text);
    font-size: 11px;
    font-weight: 700;
    line-height: 1;
    flex-shrink: 0;
}

/* Emphasize unread conversations in the list */
.conv-item.unread .conv-name {
    font-weight: 700;
}

.conv-item.unread .conv-preview {
    color: var(--mud-palette-text-primary);
    font-weight: 600;
}

.conv-mode {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 2px 7px;
    border-radius: 6px;
}

.conv-mode-icon {
    font-size: 12px !important;
}

.conv-mode.mode-auto {
    color: var(--mud-palette-primary);
    background: rgba(79, 70, 229, 0.11);
}

.conv-mode.mode-human {
    color: #0A2A4E;
    background: rgba(10, 42, 78, 0.09);
}

.conv-spacer {
    flex: 1;
}

.conv-item .conv-delete {
    padding: 4px !important;
    opacity: 0;
    transition: opacity 0.12s ease;
}

.conv-item:hover .conv-delete {
    opacity: 1;
}

/* ---------- Thread header ---------- */
.thread-center {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 24px;
}

.thread-empty {
    color: var(--mud-palette-text-disabled);
}

.thread-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    background: var(--mud-palette-surface);
    flex-shrink: 0;
}

.thread-back {
    display: none;
}

.thread-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

.thread-title {
    min-width: 0;
    flex: 1;
}

.thread-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.thread-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 2px;
    color: var(--mud-palette-text-secondary);
    font-size: 12px;
}

.thread-meta-icon {
    font-size: 14px !important;
}

/* ---------- Mode toggle (segmented) ---------- */
.mode-toggle {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    background: var(--mud-palette-background-gray);
    border-radius: 10px;
    padding: 3px;
}

.mode-opt {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--mud-palette-text-secondary);
    font-family: inherit;
    font-size: 12.5px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.12s ease, color 0.12s ease;
}

    .mode-opt:disabled {
        cursor: default;
        opacity: 0.6;
    }

.mode-opt-icon {
    font-size: 16px !important;
}

.mode-opt.mode-auto.active {
    background: var(--mud-palette-surface);
    color: var(--mud-palette-primary);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.12);
}

.mode-opt.mode-human.active {
    background: var(--mud-palette-surface);
    color: #0A2A4E;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.12);
}

/* ---------- Mode banner ---------- */
.thread-banner {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 18px;
    font-size: 12.5px;
    flex-shrink: 0;
    border-bottom: 1px solid transparent;
}

.thread-banner .banner-icon {
    font-size: 17px !important;
}

.thread-banner.banner-auto {
    background: rgba(79, 70, 229, 0.06);
    color: #5B21B6;
    border-bottom-color: rgba(79, 70, 229, 0.15);
}

.thread-banner.banner-human {
    background: rgba(10, 42, 78, 0.05);
    color: #0A2A4E;
    border-bottom-color: rgba(10, 42, 78, 0.12);
}

/* ---------- Messages ---------- */
.thread-messages {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    padding: 20px 22px;
}

.thread-messages-inner {
    display: flex;
    flex-direction: column;
    gap: 14px;
    max-width: 760px;
    margin: 0 auto;
}

/* ---------- Message bubble ---------- */
.msg-row {
    display: flex;
    flex-direction: column;
    max-width: 78%;
    animation: msg-fade-in 0.2s ease;
}

    .msg-row.incoming {
        align-self: flex-start;
        align-items: flex-start;
    }

    .msg-row.outgoing {
        align-self: flex-end;
        align-items: flex-end;
    }

.msg-author {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 4px;
    padding: 0 4px;
}

    .msg-author.author-ai {
        color: var(--mud-palette-primary);
    }

    .msg-author.author-human {
        color: #0A2A4E;
    }

.msg-author-icon {
    font-size: 15px !important;
}

.msg-author-name {
    font-size: 11px;
    font-weight: 600;
}

.msg-bubble {
    padding: 10px 14px;
    font-size: 14px;
    line-height: 1.55;
    white-space: pre-wrap;
    word-break: break-word;
    max-width: 100%;
}

.msg-bubble.bubble-customer {
    background: var(--mud-palette-surface);
    border: 1px solid var(--mud-palette-lines-default);
    color: var(--mud-palette-text-primary);
    border-radius: 5px 15px 15px 15px;
}

.msg-bubble.bubble-ai {
    background: var(--mud-palette-primary);
    color: var(--mud-palette-primary-text);
    border-radius: 15px 15px 5px 15px;
}

.msg-bubble.bubble-human {
    background: #0A2A4E;
    color: #FFFFFF;
    border-radius: 15px 15px 5px 15px;
}

/* Markdown-rendered message body: block HTML now handles its own spacing,
   so drop the plain-text pre-wrap and style the generated elements. */
.msg-bubble.markdown-body {
    white-space: normal;
}

.markdown-body > *:first-child {
    margin-top: 0;
}

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

.markdown-body p {
    margin: 0 0 6px;
}

.markdown-body ul,
.markdown-body ol {
    margin: 0 0 6px;
    padding-left: 20px;
}

.markdown-body li {
    margin: 1px 0;
}

/* Markdig wraps "loose" list items (blank line between items) in <p>;
   strip that inner margin so list items stay tight. */
.markdown-body li > p {
    margin: 0;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    margin: 8px 0 4px;
    font-weight: 600;
    line-height: 1.3;
}

.markdown-body a {
    color: inherit;
    text-decoration: underline;
}

.markdown-body code {
    background: rgba(0, 0, 0, 0.08);
    padding: 1px 5px;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.markdown-body pre {
    background: rgba(0, 0, 0, 0.08);
    padding: 10px 12px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 0 0 8px;
}

.markdown-body pre code {
    background: none;
    padding: 0;
}

.markdown-body blockquote {
    margin: 0 0 8px;
    padding-left: 10px;
    border-left: 3px solid rgba(0, 0, 0, 0.15);
}

.markdown-body table {
    border-collapse: collapse;
    margin: 0 0 8px;
}

.markdown-body th,
.markdown-body td {
    border: 1px solid rgba(0, 0, 0, 0.15);
    padding: 4px 8px;
}

.markdown-body img {
    max-width: 100%;
}

/* AI bubble has a dark (primary) background + light text — lighten code tints for contrast */
.msg-bubble.bubble-ai.markdown-body code,
.msg-bubble.bubble-ai.markdown-body pre {
    background: rgba(255, 255, 255, 0.15);
}

.msg-bubble.bubble-ai.markdown-body blockquote {
    border-left-color: rgba(255, 255, 255, 0.4);
}

.msg-citations {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 6px;
    padding: 0 2px;
}

.msg-citation {
    display: inline-flex;
    align-items: center;
    font-size: 11.5px;
    color: var(--mud-palette-text-secondary);
    background: var(--mud-palette-background-gray);
    border: 1px solid var(--mud-palette-lines-default);
    border-radius: 6px;
    padding: 2px 8px;
}

.msg-toolbar {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-top: 4px;
    padding: 0 2px;
}

.msg-time {
    font-size: 11px;
    color: var(--mud-palette-text-secondary);
    margin-right: 4px;
}

.msg-toolbar .msg-tool-btn {
    padding: 4px !important;
}

/* ---------- Composer ---------- */
.thread-composer {
    border-top: 1px solid var(--mud-palette-lines-default);
    padding: 12px 18px;
    background: var(--mud-palette-surface);
    flex-shrink: 0;
}

.composer {
    border: 1px solid var(--mud-palette-lines-inputs);
    border-radius: 14px;
    padding: 6px 10px 8px 12px;
    background: var(--mud-palette-surface);
}

.composer-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
}

.composer-placeholder-icon {
    font-size: 19px !important;
    color: var(--mud-palette-action-disabled);
}

.composer-spacer {
    flex: 1;
}

.composer-hint {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 11.5px;
    color: var(--mud-palette-text-secondary);
}

.composer-hint-icon {
    font-size: 14px !important;
}

.composer .composer-send {
    padding: 6px !important;
}

/* ---------- Auto-pilot locked composer ---------- */
.composer-locked {
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px dashed rgba(79, 70, 229, 0.35);
    background: rgba(79, 70, 229, 0.05);
    border-radius: 12px;
    padding: 12px 16px;
}

.composer-locked-icon {
    font-size: 22px !important;
    color: var(--mud-palette-primary);
    flex-shrink: 0;
}

.composer-locked-text {
    flex: 1;
    min-width: 0;
}

.composer-locked-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
}

.composer-locked-sub {
    font-size: 12px;
    color: var(--mud-palette-text-secondary);
    margin-top: 1px;
}

@keyframes msg-fade-in {
    from {
        opacity: 0;
        transform: translateY(4px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- Responsive: single-pane on small screens ---------- */
@media (max-width: 820px) {
    .conv-list-pane {
        width: 100%;
        border-right: none;
    }

    .conv-shell.has-selection .conv-list-pane {
        display: none;
    }

    .conv-shell:not(.has-selection) .conv-thread-pane {
        display: none;
    }

    .thread-back {
        display: inline-flex;
    }

    .msg-row {
        max-width: 88%;
    }
}