/* === Burnish Demo App Styles === */

*, *::before, *::after { box-sizing: border-box; }
body, h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; padding: 0; }

body {
    font-family: var(--burnish-font, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif);
    background: var(--burnish-surface-alt, #F8F5F5);
    color: var(--burnish-text, #2D1F1F);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ── Header ── */
.burnish-header {
    height: 48px;
    background: var(--burnish-primary, #2D1F1F);
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    flex-shrink: 0;
    z-index: 10;
}
.burnish-header-left { display: flex; align-items: center; gap: 16px; }
.burnish-header-right { display: flex; align-items: center; gap: 8px; }
.burnish-logo-icon { width: 28px; height: 28px; vertical-align: middle; margin-right: 6px; }
.burnish-logo { font-weight: 700; font-size: 16px; letter-spacing: 1px; }
.burnish-breadcrumb {
    font-size: 13px; opacity: 0.7;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    flex: 1;
}
.burnish-crumb { cursor: pointer; transition: opacity var(--burnish-transition-fast); }
.burnish-crumb:hover { text-decoration: underline; opacity: 1; }
.burnish-crumb-active { cursor: default; font-weight: 600; }
.burnish-crumb-active:hover { text-decoration: none; }
.burnish-crumb-ellipsis { cursor: default; }
.burnish-crumb-ellipsis:hover { text-decoration: none; }
.burnish-crumb-sep { margin: 0 2px; opacity: 0.5; }
.burnish-header-btn {
    background: none; border: none; color: rgba(255,255,255,0.7);
    cursor: pointer; padding: 8px; border-radius: 4px;
    transition: all var(--burnish-transition-fast);
    min-width: 36px; min-height: 36px; display: flex; align-items: center; justify-content: center;
}
.burnish-header-btn:hover { color: white; background: rgba(255,255,255,0.1); }

/* ── Layout ── */
.burnish-layout {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* ── Session Panel (left) ── */
.burnish-session-panel {
    position: fixed;
    left: 0;
    top: 48px;
    bottom: 0;
    width: 260px;
    background: var(--burnish-surface-hover, #F3EDED);
    border-right: 1px solid var(--burnish-border, #E5DDDD);
    display: flex;
    flex-direction: column;
    z-index: 5;
    overflow: hidden;
}
.burnish-session-panel-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--burnish-border-light, #F0EAEA);
    display: flex; align-items: center; justify-content: space-between;
    flex-shrink: 0;
}
.burnish-session-panel-title {
    font-size: 13px; font-weight: 600; color: var(--burnish-text-secondary);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.burnish-session-new-btn {
    background: none; border: 1px solid var(--burnish-border, #E5DDDD);
    color: var(--burnish-text-secondary); cursor: pointer;
    padding: 6px 12px; border-radius: var(--burnish-radius-sm, 4px);
    display: flex; align-items: center;
    transition: all var(--burnish-transition-fast);
}
.burnish-session-new-btn:hover {
    background: var(--burnish-surface, #fff); color: var(--burnish-text);
    border-color: var(--burnish-accent, #8B3A3A);
}
/* ── Session Search ── */
.burnish-session-search-wrap {
    padding: 8px 12px 4px;
    flex-shrink: 0;
}
.burnish-session-search {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid var(--burnish-border, #E5DDDD);
    border-radius: var(--burnish-radius-sm, 4px);
    font-size: 12px;
    font-family: inherit;
    color: var(--burnish-text);
    background: var(--burnish-surface, #fff);
    outline: none;
    transition: border-color var(--burnish-transition-fast);
    box-sizing: border-box;
}
.burnish-session-search:focus {
    border-color: var(--burnish-accent, #8B3A3A);
}
.burnish-session-search::placeholder {
    color: var(--burnish-text-muted, #9C8F8F);
}
.burnish-session-match {
    font-size: 11px;
    color: var(--burnish-text-muted, #9C8F8F);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.burnish-session-match mark {
    background: rgba(139, 58, 58, 0.15);
    color: var(--burnish-accent, #8B3A3A);
    border-radius: 2px;
    padding: 0 1px;
}

.burnish-session-list { flex: 1; overflow-y: auto; padding: 8px; }
.burnish-session-group-label {
    font-size: 11px; font-weight: 600; color: var(--burnish-text-muted);
    text-transform: uppercase; letter-spacing: 0.5px;
    padding: 12px 8px 4px;
}
.burnish-session-item {
    padding: 10px 12px; border-radius: var(--burnish-radius-md, 8px);
    cursor: pointer; transition: all var(--burnish-transition-fast);
    position: relative; margin-bottom: 2px;
}
.burnish-session-item:hover { background: var(--burnish-surface, #fff); }
.burnish-session-item.active {
    background: var(--burnish-surface, #fff); box-shadow: var(--burnish-shadow-sm);
    position: relative;
}
.burnish-session-item.active::before {
    content: '';
    position: absolute;
    top: 0; bottom: 0; left: 0;
    width: 3px;
    background: var(--burnish-accent, #8B3A3A);
    border-radius: var(--burnish-radius-md, 4px) 0 0 var(--burnish-radius-md, 4px);
}
.burnish-session-title {
    font-size: 13px; font-weight: 500; color: var(--burnish-text);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    padding-right: 20px;
}
.burnish-session-meta {
    font-size: 11px; color: var(--burnish-text-secondary); margin-top: 2px;
}
.burnish-session-delete {
    position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
    background: none; border: none; color: var(--burnish-text-muted);
    cursor: pointer; font-size: 16px; padding: 4px 8px; border-radius: 3px;
    opacity: 0; transition: opacity var(--burnish-transition-fast);
}
.burnish-session-item:hover .burnish-session-delete { opacity: 1; }
.burnish-session-delete:hover { color: var(--burnish-error); background: var(--burnish-border-error); }

/* ── Content Area ── */
.burnish-content {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    margin-left: 260px;
}
.burnish-dashboard {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--burnish-space-lg, 16px);
    overflow-x: hidden; /* fallback for Safari <16 */
    overflow-x: clip;
    padding-bottom: 70px; /* Space for fixed LLM Insight prompt bar */
}

/* ── Inline Prompt Bubble ── */
.burnish-node-prompt-bubble {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 14px 16px 0;
    border: 1px solid var(--burnish-border, #E5DDDD);
    border-top: none;
    border-bottom: none;
    background: var(--burnish-surface-alt, #F8F5F5);
}
.burnish-prompt-avatar {
    width: 28px; height: 28px; border-radius: var(--burnish-radius-round, 50%);
    background: var(--burnish-accent, #8B3A3A); color: white;
    font-size: 11px; font-weight: 600;
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.burnish-prompt-text {
    font-size: 14px; line-height: 1.5; color: var(--burnish-text); padding-top: 4px;
}
.burnish-node[data-collapsed="true"] .burnish-node-prompt-bubble { display: none; }

.burnish-mobile-only { display: none; }


/* ── Empty State ── */
.burnish-dashboard:has(.burnish-empty-state) {
    min-height: calc(100vh - 48px);
    display: flex;
    align-items: center;
    justify-content: center;
}
.burnish-empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--burnish-text-secondary);
    max-width: 760px;
    margin: 0 auto;
}
.burnish-empty-icon { margin-bottom: 16px; }
.burnish-empty-state h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--burnish-text);
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}
.burnish-empty-state p { font-size: 15px; margin-bottom: 32px; color: var(--burnish-text-muted, #9C8F8F); }

.burnish-suggestions { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.burnish-suggestion {
    padding: 8px 16px;
    border-radius: var(--burnish-radius-pill, 20px);
    border: 1px solid var(--burnish-border, #E5DDDD);
    background: var(--burnish-surface, #fff);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--burnish-transition-fast);
    color: var(--burnish-text);
}
.burnish-server-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}
.burnish-server-buttons > * {
    flex: 0 1 340px;
}
.burnish-server-buttons:empty { display: none; }
.burnish-tool-shortcuts {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    padding-top: 16px;
    border-top: 1px solid var(--burnish-border-light, #F0EAEA);
}
.burnish-tool-shortcuts:empty { display: none; border: none; padding: 0; }
.burnish-starter-prompts {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    padding-top: 12px;
}
.burnish-starter-prompts:empty { display: none; padding: 0; }
.burnish-suggestion-skeleton-pill {
    width: 140px;
    height: 40px;
    border-radius: var(--burnish-radius-pill, 20px);
    background: linear-gradient(90deg, var(--burnish-border, #E5DDDD) 25%, var(--burnish-border-light, #F0EAEA) 50%, var(--burnish-border, #E5DDDD) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}
.burnish-suggestion:hover {
    border-color: var(--burnish-accent, #8B3A3A);
    color: var(--burnish-accent);
    background: rgba(139, 58, 58, 0.04);
}

/* ── Recent Prompts (empty state) ── */
.burnish-recent-prompts {
    padding-top: 16px;
    border-top: 1px solid var(--burnish-border-light, #F0EAEA);
    margin-top: 8px;
}
.burnish-recent-prompts:empty { display: none; border: none; padding: 0; margin: 0; }
.burnish-recent-prompts-label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--burnish-text-muted, #9C8F8F);
    margin-bottom: 8px;
}
.burnish-recent-prompts-list {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}
.burnish-suggestion-recent {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.burnish-recent-icon {
    display: inline-flex;
    opacity: 0.5;
    flex-shrink: 0;
}
.burnish-suggestion-recent:hover .burnish-recent-icon,
.burnish-suggestion-autofill:hover .burnish-recent-icon {
    opacity: 0.8;
}

/* ── Auto-fill Suggestions (tool form) ── */
.burnish-autofill-suggestions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    padding: 10px 14px;
    margin-bottom: 8px;
    background: var(--burnish-surface-alt, #F8F5F5);
    border-radius: var(--burnish-radius-md, 8px);
    border: 1px solid var(--burnish-border-light, #F0EAEA);
}
.burnish-autofill-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--burnish-text-muted, #9C8F8F);
    flex-shrink: 0;
}
.burnish-suggestion-autofill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    padding: 5px 12px;
}

/* ── Ambient Suggestions (post-result chips) ── */
.burnish-ambient-suggestions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--burnish-border-light, #F0EAEA);
}
.burnish-ambient-chip {
    padding: 6px 14px;
    border-radius: var(--burnish-radius-pill, 20px);
    border: 1px solid var(--burnish-border, #E5DDDD);
    background: var(--burnish-surface, #fff);
    font-size: 12px;
    cursor: pointer;
    transition: all var(--burnish-transition-fast);
    color: var(--burnish-text);
    line-height: 1.4;
}
.burnish-ambient-chip:hover {
    border-color: var(--burnish-accent, #8B3A3A);
    color: var(--burnish-accent);
    background: rgba(139, 58, 58, 0.04);
}
.burnish-ambient-chip--static {
    cursor: default;
    font-style: italic;
    color: var(--burnish-text-muted, #9C8F8F);
    border-style: dashed;
}
.burnish-ambient-chip--static:hover {
    border-color: var(--burnish-border, #E5DDDD);
    color: var(--burnish-text-muted, #9C8F8F);
    background: var(--burnish-surface, #fff);
}
.burnish-ambient-chip--insight {
    border-color: var(--burnish-info, #3B82F6);
    color: var(--burnish-info, #3B82F6);
    background: rgba(59, 130, 246, 0.04);
}
.burnish-ambient-chip--insight:hover {
    background: rgba(59, 130, 246, 0.08);
}
.burnish-ambient-chip--insight.burnish-ambient-chip--static:hover {
    background: rgba(59, 130, 246, 0.04);
}
.burnish-ambient-chip--action {
    border-color: var(--burnish-accent, #8B3A3A);
    color: var(--burnish-accent, #8B3A3A);
}
.burnish-ambient-chip--explore {
    border-color: var(--burnish-border, #E5DDDD);
}

/* ── Empty State Hint ── */
.burnish-empty-hint {
    margin-top: 24px;
    font-size: 13px;
    color: var(--burnish-text-muted, #9C8F8F);
}
.burnish-hint-text {
    font-style: italic;
}

/* ── Skeleton Loading ── */
.burnish-skeleton { padding: 16px 0; }
.burnish-skeleton-stat-bar { display: flex; gap: 12px; margin-bottom: 24px; }
.burnish-skeleton-pill {
    width: 120px; height: 40px;
    background: linear-gradient(90deg, var(--burnish-border, #E5DDDD) 25%, var(--burnish-border-light, #F0EAEA) 50%, var(--burnish-border, #E5DDDD) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 20px;
}
.burnish-skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, 340px);
    gap: 12px;
}
.burnish-skeleton-card {
    height: 120px;
    background: linear-gradient(90deg, var(--burnish-border, #E5DDDD) 25%, var(--burnish-border-light, #F0EAEA) 50%, var(--burnish-border, #E5DDDD) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
}
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}


/* ── Component fade-in ── */
.burnish-node-content > :not(.burnish-progress):not(.burnish-skeleton) {
    animation: fadeSlideIn 0.25s ease-out;
}
@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}


/* ── Text Response (Markdown) ── */
.burnish-text-response {
    max-width: 800px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--burnish-text, #2D1F1F);
    padding: 28px 32px;
    background: var(--burnish-surface, #fff);
    border-radius: var(--burnish-radius-md, 8px);
    box-shadow: var(--burnish-shadow-sm);
}

/* Headings */
.burnish-text-response h1,
.burnish-text-response h2,
.burnish-text-response h3,
.burnish-text-response h4 {
    color: var(--burnish-text, #2D1F1F);
    font-weight: 600;
    line-height: 1.3;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}
.burnish-text-response h1:first-child,
.burnish-text-response h2:first-child,
.burnish-text-response h3:first-child,
.burnish-text-response h4:first-child { margin-top: 0; }

.burnish-text-response h1 { font-size: 1.5em; }
.burnish-text-response h2 {
    font-size: 1.25em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid var(--burnish-border-light, #F0EAEA);
}
.burnish-text-response h3 { font-size: 1.1em; }
.burnish-text-response h4 {
    font-size: 1em;
    color: var(--burnish-text-secondary, #6B5A5A);
}

/* Paragraphs */
.burnish-text-response p {
    margin-top: 0;
    margin-bottom: 0.85em;
}
.burnish-text-response p:last-child { margin-bottom: 0; }

/* Lists */
.burnish-text-response ul,
.burnish-text-response ol {
    margin-top: 0;
    margin-bottom: 1em;
    padding-left: 1.75em;
}
.burnish-text-response li {
    margin-bottom: 0.35em;
    line-height: 1.6;
}
.burnish-text-response li:last-child { margin-bottom: 0; }
.burnish-text-response li > ul,
.burnish-text-response li > ol {
    margin-top: 0.35em;
    margin-bottom: 0;
}

/* Inline code */
.burnish-text-response code {
    background: var(--burnish-surface-alt, #F8F5F5);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--burnish-font-mono);
    font-size: 0.875em;
    color: var(--burnish-accent, #8B3A3A);
    border: 1px solid var(--burnish-border-light, #F0EAEA);
}

/* Code blocks */
.burnish-text-response pre {
    background: #1e293b;
    color: #e2e8f0;
    border-radius: var(--burnish-radius-md, 8px);
    padding: 16px 20px;
    overflow-x: auto;
    margin-top: 0;
    margin-bottom: 1em;
    font-size: 13px;
    line-height: 1.5;
}
.burnish-text-response pre code {
    background: none;
    border: none;
    padding: 0;
    color: inherit;
    font-size: inherit;
    border-radius: 0;
}

/* Horizontal rules */
.burnish-text-response hr {
    border: none;
    border-top: 1px solid var(--burnish-border-light, #F0EAEA);
    margin: 1.5em 0;
}

/* Blockquotes */
.burnish-text-response blockquote {
    border-left: 3px solid var(--burnish-accent, #8B3A3A);
    margin: 0 0 1em 0;
    padding: 0.5em 1em;
    color: var(--burnish-text-secondary, #6B5A5A);
    background: var(--burnish-surface-alt, #F8F5F5);
    border-radius: 0 var(--burnish-radius-sm, 4px) var(--burnish-radius-sm, 4px) 0;
}
.burnish-text-response blockquote p:last-child { margin-bottom: 0; }

/* Bold & italic */
.burnish-text-response strong { font-weight: 600; color: var(--burnish-text, #2D1F1F); }
.burnish-text-response em { font-style: italic; }

/* Links */
.burnish-text-response a {
    color: var(--burnish-link, #7C3030);
    text-decoration: none;
}
.burnish-text-response a:hover { text-decoration: underline; }

/* Tables (markdown tables) */
.burnish-text-response table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1em;
    font-size: 13px;
}
.burnish-text-response th {
    text-align: left;
    padding: 8px 12px;
    background: var(--burnish-surface-alt, #F8F5F5);
    border-bottom: 2px solid var(--burnish-border, #E5DDDD);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--burnish-text-secondary, #6B5A5A);
}
.burnish-text-response td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--burnish-border-light, #F0EAEA);
}
.burnish-text-response tr:last-child td { border-bottom: none; }
.burnish-text-preamble {
    max-width: 800px;
    margin-bottom: 16px;
    font-size: 14px;
    line-height: 1.6;
}

/* ── Node Sections (infinite scroll) ── */
.burnish-node {
    background: transparent;
    border-radius: var(--burnish-radius-md, 8px);
    transition: all var(--burnish-transition-normal);
    /* Keep result cards comfortably contained — without this they stretch
       edge-to-edge inside .burnish-dashboard, making the Focus toggle feel
       like a no-op (the un-focused state already fills the viewport). */
    max-width: min(820px, 100%);
    width: 100%;
    margin-inline: auto;
}
.burnish-node[data-collapsed="false"] {
    position: relative;
    border-radius: var(--burnish-radius-md, 4px);
    box-shadow: var(--burnish-shadow-sm);
}
.burnish-node + .burnish-node {
    margin-top: var(--burnish-space-sm, 8px);
}
.burnish-node-header {
    display: flex;
    align-items: center;
    gap: var(--burnish-space-sm, 8px);
    padding: 10px 16px;
    cursor: pointer;
    user-select: none;
    border-radius: var(--burnish-radius-md, 8px);
    background: var(--burnish-surface, #fff);
    border: 1px solid var(--burnish-border-light, #F0EAEA);
    transition: all var(--burnish-transition-fast);
}
.burnish-node-header:hover {
    background: var(--burnish-surface-hover, #F3EDED);
    border-color: var(--burnish-border, #E5DDDD);
}
.burnish-node[data-collapsed="false"] .burnish-node-header {
    background: var(--burnish-surface, #fff);
    border-color: var(--burnish-border, #E5DDDD);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    border-bottom: none;
    padding-left: 16px;
}
.burnish-node-chevron {
    font-size: 12px;
    color: var(--burnish-text-muted, #9C8F8F);
    transition: transform var(--burnish-transition-fast);
    flex-shrink: 0;
    width: 16px;
    text-align: center;
}
.burnish-node[data-collapsed="true"] .burnish-node-chevron {
    transform: rotate(-90deg);
}
.burnish-node-prompt {
    font-size: var(--burnish-font-size-md, 14px);
    font-weight: 500;
    color: var(--burnish-text, #2D1F1F);
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.burnish-node-summary {
    font-size: var(--burnish-font-size-sm, 12px);
    color: var(--burnish-text-muted, #9C8F8F);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 0 1 auto;
    min-width: 0;
}
.burnish-node-tags {
    display: inline-flex;
    gap: 4px;
}
.burnish-node-tag {
    background: var(--burnish-surface-alt, #F8F5F5);
    color: var(--burnish-text-secondary, #6B5A5A);
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 3px;
    font-family: var(--burnish-font-mono);
}
.burnish-node[data-collapsed="false"] .burnish-node-tag {
    background: var(--burnish-surface, #fff);
}
.burnish-node-time {
    font-size: var(--burnish-font-size-xs, 11px);
    color: var(--burnish-text-muted, #9C8F8F);
    flex-shrink: 0;
}
/* ── Tree Layout ── */
.burnish-tree {
    display: flex;
    flex-direction: column;
    min-width: 0;
}
.burnish-tree-connector {
    width: 1px;
    height: 8px;
    background: var(--burnish-border, #E5DDDD);
    margin: 0 auto;
}
.burnish-tree-branches {
    display: flex;
    gap: 12px;
}
.burnish-tree-branch-col {
    min-width: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.burnish-tree-branch-col:not(.active) {
    opacity: 0.5;
}
.burnish-node-dimmed {
    opacity: 0.6;
}

/* ── Node Action Buttons ── */
.burnish-node-delete {
    background: none;
    border: none;
    color: var(--burnish-text-muted, #9C8F8F);
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 3px;
    opacity: 0;
    transition: opacity var(--burnish-transition-fast);
    flex-shrink: 0;
    line-height: 1;
    min-width: 28px; min-height: 28px; display: inline-flex; align-items: center; justify-content: center;
}
/* Maximize/restore */
.burnish-node-maximize {
    background: none;
    border: none;
    color: var(--burnish-text-muted, #9C8F8F);
    cursor: pointer;
    padding: 4px 6px;
    opacity: 0;
    transition: opacity var(--burnish-transition-fast);
    flex-shrink: 0;
    line-height: 1;
    min-width: 28px; min-height: 28px; display: inline-flex; align-items: center; justify-content: center;
}
.burnish-node-header:hover .burnish-node-maximize { opacity: 1; }
.burnish-node-maximize:hover { color: var(--burnish-accent, #8B3A3A); }
.burnish-node-maximized {
    position: fixed !important;
    top: 48px !important;
    left: 260px !important;
    right: 0 !important;
    bottom: 0 !important;
    width: calc(100vw - 260px) !important;
    z-index: 50;
    background: var(--burnish-surface-alt, #F8F5F5);
    overflow-y: auto;
    border-radius: 0 !important;
    margin: 0 !important;
    box-shadow: none !important;
    opacity: 1 !important;
    max-width: none !important;
    min-width: 0 !important;
    flex: none !important;
}
.burnish-node-maximized .burnish-node-header {
    position: sticky;
    top: 0;
    z-index: 1;
    border-radius: 0;
}
.burnish-node-maximized .burnish-node-maximize { opacity: 1; }
.burnish-node-maximized .burnish-node-content {
    border-radius: 0;
    border-left: none;
    border-right: none;
}
@media (max-width: 768px) {
    .burnish-node-maximized { left: 0 !important; width: 100vw !important; }
}
.burnish-node-info {
    background: none;
    border: none;
    color: var(--burnish-text-muted, #9C8F8F);
    cursor: help;
    padding: 4px 6px;
    opacity: 0;
    transition: opacity var(--burnish-transition-fast);
    flex-shrink: 0;
    line-height: 1;
    min-width: 28px; min-height: 28px; display: inline-flex; align-items: center; justify-content: center;
}
.burnish-node-header:hover .burnish-node-info { opacity: 1; }
.burnish-node-info:hover { color: var(--burnish-accent, #8B3A3A); }
/* Refresh button */
.burnish-node-refresh {
    background: none;
    border: none;
    color: var(--burnish-text-muted, #9C8F8F);
    cursor: pointer;
    padding: 4px 6px;
    opacity: 0;
    transition: opacity var(--burnish-transition-fast);
    flex-shrink: 0;
    line-height: 1;
    min-width: 28px; min-height: 28px; display: inline-flex; align-items: center; justify-content: center;
}
.burnish-node-header:hover .burnish-node-refresh { opacity: 1; }
.burnish-node-refresh:hover { color: var(--burnish-accent, #8B3A3A); }
/* Always show action buttons on expanded nodes */
.burnish-node[data-collapsed="false"] .burnish-node-maximize,
.burnish-node[data-collapsed="false"] .burnish-node-refresh,
.burnish-node[data-collapsed="false"] .burnish-node-delete,
.burnish-node[data-collapsed="false"] .burnish-node-info { opacity: 1; }
.burnish-node-header:hover .burnish-node-delete { opacity: 1; }
.burnish-node-delete:hover {
    color: var(--burnish-error, #ef4444);
    background: var(--burnish-border-error, #fee2e2);
}
.burnish-node-content {
    padding: 16px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--burnish-space-xl, 20px);
    border: 1px solid var(--burnish-border, #E5DDDD);
    border-top: none;
    border-radius: 0 0 var(--burnish-radius-md, 4px) var(--burnish-radius-md, 4px);
    background: var(--burnish-surface-alt, #F8F5F5);
}
/* Non-card elements span full grid width */
.burnish-node-content > :not(burnish-card) {
    grid-column: 1 / -1;
}
/* Stat-bars flow horizontally within result wrappers */
.burnish-result-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: var(--burnish-space-sm, 8px);
    align-items: flex-start;
}
.burnish-result-wrapper > :not(burnish-stat-bar):not(.burnish-metrics-grid) {
    width: 100%;
}
.burnish-metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--burnish-space-md, 12px);
    width: 100%;
}
@media (max-width: 768px) {
    .burnish-node-content { grid-template-columns: 1fr; }
}
.burnish-node[data-collapsed="true"] .burnish-node-content {
    display: none;
}
.burnish-node[data-collapsed="true"] .burnish-node-summary {
    display: inline;
}
/* Flash animation for scroll-to */
@keyframes node-highlight {
    0% { box-shadow: 0 0 0 3px rgba(139, 58, 58, 0.4); }
    100% { box-shadow: 0 0 0 3px transparent; }
}
.burnish-node-highlight {
    animation: node-highlight 1s ease-out;
}

/* ── View Switcher ── */
.burnish-view-switcher {
    display: flex; align-items: center; gap: 4px; padding: 8px 0; margin-bottom: 4px;
}
.burnish-view-btn {
    padding: 6px 14px; border: 1px solid var(--burnish-border, #E5DDDD); border-radius: 4px;
    background: var(--burnish-surface, #fff); cursor: pointer; font-size: 13px;
    color: var(--burnish-text-secondary, #6B5A5A); transition: all 0.15s ease;
}
.burnish-view-btn:hover { border-color: var(--burnish-accent, #8B3A3A); color: var(--burnish-accent, #8B3A3A); }
.burnish-view-btn.active {
    background: var(--burnish-accent, #8B3A3A); color: white;
    border-color: var(--burnish-accent, #8B3A3A);
}
.burnish-view-count {
    font-size: 12px; color: var(--burnish-text-muted, #9C8F8F); margin-left: 8px;
}
.burnish-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--burnish-space-md, 12px);
}
.burnish-cards-grid > :only-child {
    grid-column: 1 / -1;
}
.burnish-json-view {
    background: var(--burnish-surface-alt, #F8F5F5); padding: 16px; border-radius: 4px;
    font-size: 11px; font-family: var(--burnish-font-mono, 'SF Mono', monospace);
    overflow: auto; max-height: 500px; white-space: pre-wrap; word-break: break-word;
    border: 1px solid var(--burnish-border-light, #F0EAEA);
}
.burnish-markdown-content {
    background: var(--burnish-surface, #fff);
    padding: 16px 20px;
    border-radius: var(--burnish-radius-md, 4px);
    border: 1px solid var(--burnish-border-light, #F0EAEA);
    font-size: 14px; line-height: 1.6; color: var(--burnish-text, #2D1F1F);
    overflow-wrap: break-word; word-break: break-word;
    max-height: 600px; overflow-y: auto;
}
.burnish-markdown-content h1, .burnish-markdown-content h2, .burnish-markdown-content h3 {
    margin: 16px 0 8px; color: var(--burnish-text, #2D1F1F);
}
.burnish-markdown-content h1 { font-size: 20px; }
.burnish-markdown-content h2 { font-size: 17px; }
.burnish-markdown-content h3 { font-size: 15px; }
.burnish-markdown-content p { margin: 0 0 8px; }
.burnish-markdown-content code {
    background: var(--burnish-surface-alt, #F8F5F5); padding: 1px 4px;
    border-radius: 3px; font-size: 13px;
}
.burnish-markdown-content pre {
    background: var(--burnish-surface-alt, #F8F5F5); padding: 12px;
    border-radius: 4px; overflow-x: auto; font-size: 13px;
}
.burnish-markdown-content ul, .burnish-markdown-content ol { padding-left: 20px; margin: 8px 0; }
.burnish-markdown-content a { color: var(--burnish-link, #7C3030); }

/* ── Diagnostic Panel ── */
.burnish-diagnostic-panel {
    background: var(--burnish-surface, #fff);
    border: 1px solid var(--burnish-border-light, #F0EAEA);
    border-radius: var(--burnish-radius-sm, 4px);
    padding: 12px 16px;
    font-size: 12px;
    font-family: var(--burnish-font-mono, 'SF Mono', 'Fira Code', 'Fira Mono', monospace);
    color: var(--burnish-text-secondary, #6B5A5A);
    animation: fadeSlideIn 0.2s ease-out;
}
.burnish-diag-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--burnish-border-light, #F0EAEA);
}
.burnish-diag-metric strong {
    color: var(--burnish-text, #2D1F1F);
    margin-right: 4px;
}
.burnish-diag-steps {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.burnish-diag-step {
    display: flex;
    align-items: center;
    gap: 8px;
}
.burnish-diag-check {
    color: var(--burnish-success, #22c55e);
    font-size: 11px;
    flex-shrink: 0;
    width: 14px;
    text-align: center;
}
.burnish-diag-label {
    flex: 1;
    min-width: 0;
}
.burnish-diag-time {
    color: var(--burnish-text-muted, #9C8F8F);
    font-variant-numeric: tabular-nums;
    min-width: 36px;
    text-align: right;
    flex-shrink: 0;
}

.burnish-diag-section-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--burnish-text, #2D1F1F);
    margin: 10px 0 6px;
    padding-top: 10px;
    border-top: 1px solid var(--burnish-border-light, #F0EAEA);
}

/* ── Dashboard Mode ── */
[data-dashboard="true"] .burnish-session-panel { display: none; }
[data-dashboard="true"] .burnish-content { margin-left: 0; }
[data-dashboard="true"] .burnish-node-header { display: none; }
[data-dashboard="true"] .burnish-node-prompt-bubble { display: none; }
[data-dashboard="true"] .burnish-node[data-collapsed="true"] .burnish-node-content { display: grid; }
[data-dashboard="true"] .burnish-node-content {
    border: none;
    border-radius: 0;
    padding: 8px 0;
    background: transparent;
}
[data-dashboard="true"] .burnish-node {
    box-shadow: none;
}
[data-dashboard="true"] .burnish-node + .burnish-node {
    margin-top: 0;
}
[data-dashboard="true"] .burnish-empty-state { display: none; }
.burnish-dashboard-empty-state { display: none; }
[data-dashboard="true"] .burnish-dashboard-empty-state {
    display: block;
    text-align: center;
    padding: 60px 20px;
    color: var(--burnish-text-secondary, #6B5A5A);
    max-width: 480px;
    margin: 0 auto;
}
.burnish-dashboard-empty-state svg {
    color: var(--burnish-text-muted, #A89999);
    margin-bottom: 16px;
}
.burnish-dashboard-empty-state h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--burnish-text, #2D1F1F);
    margin-bottom: 8px;
}
.burnish-dashboard-empty-state p {
    font-size: 14px;
    line-height: 1.5;
}
#btn-dashboard-toggle.active {
    color: white;
    background: rgba(255,255,255,0.15);
}

/* ── Workflow Trace (cross-server pipeline) ── */
.burnish-workflow-trace {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    margin-bottom: 8px;
    background: var(--burnish-bg-secondary, #2D1F1F);
    border-radius: 8px;
    font-size: 12px;
    flex-wrap: wrap;
    animation: fadeSlideIn 0.25s ease-out;
}
.burnish-trace-step {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 4px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
}
.burnish-trace-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    flex-shrink: 0;
}
.burnish-trace-step.running .burnish-trace-dot {
    background: var(--burnish-warning, #f0ad4e);
    animation: pulse 1s ease-in-out infinite;
}
.burnish-trace-step.success .burnish-trace-dot {
    background: var(--burnish-success, #5cb85c);
}
.burnish-trace-step.error .burnish-trace-dot {
    background: var(--burnish-error, #d9534f);
}
.burnish-trace-server {
    color: rgba(255,255,255,0.5);
    font-weight: 500;
}
.burnish-trace-server::after {
    content: ':';
}
.burnish-trace-tool {
    color: rgba(255,255,255,0.85);
}
.burnish-trace-arrow {
    color: rgba(255,255,255,0.3);
    font-size: 14px;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ── Mode Toggle ── */
.burnish-mode-toggle {
    display: flex;
    gap: 2px;
    padding: 2px;
    background: var(--burnish-surface-alt, #F0EAEA);
    border-radius: 6px;
}
.burnish-mode-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
    border: none;
    border-radius: 4px;
    background: transparent;
    font-size: 13px;
    cursor: pointer;
    color: var(--burnish-text-secondary, #6B5A5A);
    transition: all 0.15s ease;
    white-space: nowrap;
}
.burnish-mode-btn.active {
    background: var(--burnish-surface, #fff);
    color: var(--burnish-text, #2D1F1F);
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

/* ── Sidebar Backdrop (mobile overlay) ── */
.burnish-sidebar-backdrop {
    display: none;
    position: fixed;
    top: 48px;
    left: 0;
    width: 100%;
    height: calc(100% - 48px);
    background: rgba(0, 0, 0, 0.5);
    z-index: 4;
}
.burnish-sidebar-backdrop.visible { display: block; }

/* ── Responsive ── */
@media (max-width: 1024px) {
    .burnish-session-panel { left: -260px; transition: left var(--burnish-transition-normal); }
    .burnish-session-panel.open { left: 0; }
    .burnish-content { margin-left: 0; }
    .burnish-mobile-only { display: flex; }
}

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

@media (max-width: 480px) {
    .burnish-header { padding: 0 6px; overflow: hidden; gap: 4px; }
    .burnish-header-left { min-width: 0; overflow: hidden; gap: 6px; }
    .burnish-header-right { min-width: 0; overflow: hidden; gap: 2px; flex-shrink: 1; }
    .burnish-logo { font-size: 14px; letter-spacing: 0.5px; }
    .burnish-mode-label { display: none; }
    .burnish-mode-btn { padding: 4px 6px; }
    .burnish-breadcrumb { display: none; }
    .burnish-theme-toggle span { display: none; }
    .burnish-empty-state { padding: 40px 16px 40px; }
    .burnish-empty-state h2 { font-size: 22px; }
    .burnish-server-buttons > * { flex: 1 1 100%; }
    .burnish-tool-shortcuts { flex-direction: column; align-items: center; }
    .burnish-starter-prompts { flex-direction: column; align-items: center; }
}

/* Loading spinner for tool execution */
.burnish-loading {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px;
    color: var(--burnish-text-muted, #9C8F8F);
    font-size: 14px;
}
.burnish-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid var(--burnish-border, #E5DDDD);
    border-top-color: var(--burnish-accent, #8B3A3A);
    border-radius: 50%;
    animation: burnish-spin 0.6s linear infinite;
}
@keyframes burnish-spin {
    to { transform: rotate(360deg); }
}

/* Truncation notice */
.burnish-truncation-notice {
    padding: 8px 12px;
    margin-top: 8px;
    font-size: 12px;
    color: var(--burnish-text-muted, #9C8F8F);
    text-align: center;
    border-top: 1px solid var(--burnish-border, #E5DDDD);
}

/* ── AI Insight Slot ── */
.burnish-ai-insight {
    display: none;
    min-height: 48px;
    margin-top: 12px;
    padding: 12px;
    border-left: 3px solid var(--burnish-accent, #8B3A3A);
    background: var(--burnish-surface-alt, #F8F5F5);
    border-radius: 0 4px 4px 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.burnish-ai-insight.loaded { opacity: 1; }
.burnish-insight-loading {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--burnish-text-muted, #9C8F8F);
    font-size: 13px;
    font-style: italic;
}

/* ── Execution Mode Badge ── */
.burnish-exec-badge {
    display: inline-block;
    padding: 1px 8px;
    margin-left: 4px;
    font-size: var(--burnish-font-size-xs, 12px);
    font-weight: 600;
    line-height: 1.4;
    border-radius: 10px;
    white-space: nowrap;
    flex-shrink: 0;
}
.burnish-exec-badge--direct {
    color: var(--burnish-text-secondary, #6B5E5E);
    background: var(--burnish-success-bg, #F2F5EB);
    border: 1px solid var(--burnish-border-success, #D5DEC3);
}

/* ── Execution Timing Badge ── */
.burnish-timing {
    display: inline-block;
    padding: 2px 8px;
    margin-left: 8px;
    font-family: var(--burnish-font-mono, monospace);
    font-size: var(--burnish-font-size-xs, 12px);
    color: var(--burnish-text-muted, #9C8F8F);
    background: var(--burnish-surface-alt, #F8F5F5);
    border-radius: 10px;
    border: 1px solid var(--burnish-border, #E5DDDD);
}

/* ── Copy to Clipboard ── */
.burnish-json-wrapper {
    position: relative;
}
.burnish-copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 6px 12px;
    font-size: var(--burnish-font-size-xs, 12px);
    border: 1px solid var(--burnish-border, #E5DDDD);
    border-radius: 4px;
    background: var(--burnish-surface, #fff);
    color: var(--burnish-text-secondary, #6B5A5A);
    cursor: pointer;
    transition: all 0.15s ease;
    z-index: 1;
}
.burnish-copy-btn:hover {
    border-color: var(--burnish-accent, #8B3A3A);
    color: var(--burnish-accent, #8B3A3A);
}
.burnish-copied {
    background: var(--burnish-success-bg, #dcfce7);
    border-color: var(--burnish-success, #22c55e);
    color: var(--burnish-success, #22c55e);
}

/* ── Tool Call Section ── */
.burnish-tool-call {
    margin-top: 8px;
    border: 1px solid var(--burnish-border, #E5DDDD);
    border-radius: 6px;
    overflow: hidden;
}
.burnish-tool-call > summary {
    padding: 8px 12px;
    font-size: var(--burnish-font-size-sm, 13px);
    font-weight: 500;
    color: var(--burnish-text-secondary, #6B5A5A);
    background: var(--burnish-surface-alt, #F8F5F5);
    cursor: pointer;
    user-select: none;
}
.burnish-tool-call > summary:hover {
    color: var(--burnish-text, #2D1F1F);
}
.burnish-tool-call-content {
    position: relative;
    padding: 0;
}
.burnish-tool-call-content pre {
    margin: 0;
    padding: 12px;
    font-size: var(--burnish-font-size-sm, 13px);
    background: var(--burnish-surface, #fff);
    overflow-x: auto;
}
.burnish-tool-call-content .burnish-copy-btn {
    top: 4px;
    right: 4px;
}

/* ── Tool Filter/Search Bar ── */
.burnish-tool-filter-container {
    position: sticky;
    top: 0;
    z-index: 10;
    padding: 8px 0 12px;
    background: var(--burnish-surface-alt, #F8F5F5);
}
/* No ::before overlay — the filter container's own background
   covers content behind the sticky bar. */
.burnish-tool-filter {
    width: 100%;
    padding: 10px 12px 10px 36px;
    border: 1px solid var(--burnish-border, #E5DDDD);
    border-radius: 8px;
    font-size: var(--burnish-font-size-base, 14px);
    color: var(--burnish-text, #2D1F1F);
    background-color: var(--burnish-surface, #fff);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239C8F8F' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
    background-position: 12px center;
    background-repeat: no-repeat;
    outline: none;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}
.burnish-tool-filter:focus {
    border-color: var(--burnish-accent, #8B3A3A);
    box-shadow: 0 0 0 3px var(--burnish-accent-light, #F5ECEC);
}
.burnish-tool-filter::placeholder {
    color: var(--burnish-text-muted, #9C8F8F);
}

/* ── Schema Tree Viewer ── */
.burnish-schema-tree-wrapper {
    margin-bottom: 12px;
}
.burnish-schema-tree-wrapper > summary {
    cursor: pointer;
    list-style: none;
}
.burnish-schema-tree-wrapper > summary::before {
    content: '\25BC';
    font-size: 10px;
    margin-right: 8px;
}
.burnish-schema-tree-wrapper:not([open]) > summary::before {
    content: '\25B6';
}
.burnish-schema-tree {
    font-family: var(--burnish-font-mono, monospace);
    font-size: var(--burnish-font-size-sm, 13px);
    line-height: 1.8;
    padding: 12px 16px;
    background: var(--burnish-surface-alt, #F8F5F5);
    border: 1px solid var(--burnish-border, #E5DDDD);
    border-radius: 8px;
    margin-top: 6px;
    overflow-x: auto;
}
.burnish-schema-header {
    font-weight: 600;
    font-size: var(--burnish-font-size-base, 14px);
    padding: 4px 0;
    color: var(--burnish-text, #2D1F1F);
    font-family: var(--burnish-font-family, sans-serif);
}
.burnish-schema-row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 6px;
    padding: 2px 0;
}
.burnish-schema-indent {
    color: var(--burnish-text-muted, #9C8F8F);
    white-space: pre;
    user-select: none;
}
.burnish-schema-name {
    font-weight: 600;
    color: var(--burnish-text, #2D1F1F);
}
.burnish-schema-type {
    display: inline-block;
    padding: 1px 6px;
    font-size: var(--burnish-font-size-xs, 12px);
    background: var(--burnish-accent-light, #F5ECEC);
    color: var(--burnish-accent, #8B3A3A);
    border-radius: 3px;
    font-weight: 500;
}
.burnish-schema-required {
    display: inline-block;
    padding: 1px 5px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--burnish-error, #ef4444);
    background: var(--burnish-border-error, #fee2e2);
    border-radius: 3px;
}
.burnish-schema-optional {
    display: inline-block;
    padding: 1px 5px;
    font-size: 10px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--burnish-text-muted, #9C8F8F);
    border-radius: 3px;
}
.burnish-schema-desc {
    color: var(--burnish-text-secondary, #6B5A5A);
    font-style: italic;
    font-family: var(--burnish-font-family, sans-serif);
    font-size: var(--burnish-font-size-sm, 13px);
}
.burnish-schema-constraints {
    font-size: var(--burnish-font-size-xs, 12px);
    color: var(--burnish-text-muted, #9C8F8F);
    padding: 0 0 2px;
}
.burnish-schema-empty {
    color: var(--burnish-text-muted, #9C8F8F);
    font-style: italic;
    padding: 12px;
}
details.burnish-schema-prop > summary {
    cursor: pointer;
    list-style: none;
}
details.burnish-schema-prop > summary::before {
    content: '\25B6';
    font-size: 10px;
    margin-right: 8px;
}
details.burnish-schema-prop[open] > summary::before {
    content: '\25BC';
}

/* ── Theme Toggle ── */
.burnish-theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: rgba(255,255,255,0.7);
    cursor: pointer;
    transition: color 0.15s ease, background 0.15s ease;
}
.burnish-theme-toggle:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}
/* Show sun icon in dark mode, moon icon in light mode */
.burnish-theme-icon-moon { display: inline; }
.burnish-theme-icon-sun { display: none; }
[data-theme="dark"] .burnish-theme-icon-moon { display: none; }
[data-theme="dark"] .burnish-theme-icon-sun { display: inline; }
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .burnish-theme-icon-moon { display: none; }
    :root:not([data-theme="light"]) .burnish-theme-icon-sun { display: inline; }
}

/* ── Performance Panel ── */
.burnish-perf-panel {
    position: fixed;
    top: 48px;
    right: 0;
    bottom: 0;
    width: 480px;
    max-width: 100vw;
    background: var(--burnish-surface, #fff);
    border-left: 1px solid var(--burnish-border, #E5DDDD);
    box-shadow: var(--burnish-shadow-lg);
    z-index: 100;
    display: none;
    flex-direction: column;
    overflow: hidden;
}
.burnish-perf-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--burnish-border, #E5DDDD);
    flex-shrink: 0;
}
.burnish-perf-title {
    font-size: var(--burnish-font-size-md, 15px);
    font-weight: 600;
    color: var(--burnish-text, #2D1F1F);
    margin: 0;
}
.burnish-perf-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--burnish-text-muted, #9C8F8F);
    padding: 2px 6px;
    border-radius: var(--burnish-radius-md, 4px);
    transition: all var(--burnish-transition-fast);
}
.burnish-perf-close:hover {
    background: var(--burnish-surface-hover, #F3EDED);
    color: var(--burnish-text, #2D1F1F);
}
.burnish-perf-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}
.burnish-perf-summary {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}
.burnish-perf-stat {
    background: var(--burnish-surface-alt, #F8F5F5);
    border: 1px solid var(--burnish-border-light, #F0EAEA);
    border-radius: var(--burnish-radius-lg, 8px);
    padding: 10px;
    text-align: center;
}
.burnish-perf-stat-value {
    display: block;
    font-size: var(--burnish-font-size-lg, 17px);
    font-weight: 700;
    color: var(--burnish-text, #2D1F1F);
    line-height: 1.2;
}
.burnish-perf-stat-label {
    display: block;
    font-size: var(--burnish-font-size-xs, 12px);
    color: var(--burnish-text-muted, #9C8F8F);
    margin-top: 2px;
}
.burnish-perf-section-title {
    font-size: var(--burnish-font-size-sm, 13px);
    font-weight: 600;
    color: var(--burnish-text-secondary, #6B5A5A);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 16px 0 8px;
}
.burnish-perf-table-wrap {
    overflow-x: auto;
    margin-bottom: 8px;
}
.burnish-perf-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--burnish-font-size-sm, 13px);
}
.burnish-perf-table th {
    text-align: left;
    padding: 6px 8px;
    font-weight: 600;
    color: var(--burnish-text-secondary, #6B5A5A);
    border-bottom: 2px solid var(--burnish-border, #E5DDDD);
    white-space: nowrap;
}
.burnish-perf-table td {
    padding: 5px 8px;
    border-bottom: 1px solid var(--burnish-border-light, #F0EAEA);
    color: var(--burnish-text, #2D1F1F);
}
.burnish-perf-table tbody tr:hover {
    background: var(--burnish-surface-hover, #F3EDED);
}
.burnish-perf-model-name {
    font-weight: 600;
    font-family: var(--burnish-font-mono, monospace);
    font-size: var(--burnish-font-size-xs, 12px);
}
.burnish-perf-tool-name {
    font-family: var(--burnish-font-mono, monospace);
    font-size: var(--burnish-font-size-xs, 12px);
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.burnish-perf-time {
    font-family: var(--burnish-font-mono, monospace);
    font-size: var(--burnish-font-size-xs, 12px);
    white-space: nowrap;
    color: var(--burnish-text-muted, #9C8F8F);
}
.burnish-perf-rate {
    display: inline-block;
    padding: 1px 6px;
    border-radius: var(--burnish-radius-pill, 20px);
    font-size: var(--burnish-font-size-xs, 12px);
    font-weight: 600;
}
.burnish-perf-rate--success {
    background: var(--burnish-border-success, #bbf7d0);
    color: var(--burnish-success, #16a34a);
}
.burnish-perf-rate--warning {
    background: var(--burnish-border-warning, #fef08a);
    color: var(--burnish-warning, #ca8a04);
}
.burnish-perf-rate--error {
    background: var(--burnish-border-error, #fecaca);
    color: var(--burnish-error, #dc2626);
}
.burnish-perf-status {
    font-weight: 600;
    font-size: var(--burnish-font-size-xs, 12px);
}
.burnish-perf-status--success { color: var(--burnish-success, #16a34a); }
.burnish-perf-status--error { color: var(--burnish-error, #dc2626); }
.burnish-perf-empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--burnish-text-muted, #9C8F8F);
}
.burnish-perf-empty p {
    margin: 4px 0;
    font-size: var(--burnish-font-size-sm, 13px);
}
.burnish-perf-actions {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--burnish-border-light, #F0EAEA);
    text-align: center;
}
.burnish-perf-clear-btn {
    background: none;
    border: 1px solid var(--burnish-border, #E5DDDD);
    color: var(--burnish-text-secondary, #6B5A5A);
    padding: 6px 14px;
    border-radius: var(--burnish-radius-md, 4px);
    font-size: var(--burnish-font-size-sm, 13px);
    cursor: pointer;
    transition: all var(--burnish-transition-fast);
}
.burnish-perf-clear-btn:hover {
    background: var(--burnish-surface-hover, #F3EDED);
    color: var(--burnish-error, #dc2626);
    border-color: var(--burnish-error, #dc2626);
}

@media (max-width: 640px) {
    .burnish-perf-panel { width: 100vw; }
    .burnish-perf-summary { grid-template-columns: repeat(2, 1fr); }
}