/* ── Insights Dashboard ─────────────────────────────────── */

:root {
    --color-bg:        #0f1117;
    --color-surface:   #1a1d2e;
    --color-border:    #2a2d3e;
    --color-text:      #e1e4ed;
    --color-muted:     #8b8fa3;
    --color-accent:    #6366f1;
    --color-accent-hover: #818cf8;

    /* Status colours */
    --color-done:      #22c55e;
    --color-error:     #ef4444;
    --color-started:   #f59e0b;
    --color-unknown:   #6b7280;

    /* Component type colours */
    --color-generation: #3b82f6;
    --color-tool:       #22c55e;
    --color-span:       #6b7280;
    --color-event:      #eab308;
    --color-evaluator:  #a855f7;

    /* Output section accent */
    --color-output-bg:     rgba(34, 197, 94, 0.06);
    --color-output-border: rgba(34, 197, 94, 0.18);

    --radius:    0.5rem;
    --radius-lg: 0.75rem;
    --font-mono: "JetBrains Mono", "Fira Code", ui-monospace, monospace;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

/* ── Layout ────────────────────────────────────────────── */

.app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1.5rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    z-index: 10;
}

.app-header h1 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
}

.app-header .logo {
    font-size: 1.25rem;
}

/* Three-column layout: sidebar | main content */
.app-layout {
    display: grid;
    grid-template-columns: var(--sidebar-width, 240px) 1fr;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.app-layout.sidebar-collapsed {
    grid-template-columns: 48px 1fr;
}

.app-main {
    flex: 1;
    padding: 1.5rem;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    overflow-y: auto;
}

/* ── Sidebar ───────────────────────────────────────────── */

.sidebar {
    display: flex;
    flex-direction: column;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: 0.75rem 0;
    overflow-y: auto;
    overflow-x: hidden;
    height: calc(100vh - 3rem);
    transition: width 0.2s ease;
}

.sidebar-section {
    padding: 0.5rem 0;
}

.sidebar-section-label {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-muted);
    padding: 0.25rem 1rem 0.375rem;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    color: var(--color-muted);
    text-decoration: none;
    cursor: pointer;
    transition: background 0.1s, color 0.1s;
    white-space: nowrap;
    overflow: hidden;
    border-left: 3px solid transparent;
}

.sidebar-item:hover {
    background: rgba(99, 102, 241, 0.06);
    color: var(--color-text);
}

.sidebar-item.active {
    color: var(--color-accent);
    background: rgba(99, 102, 241, 0.08);
    border-left-color: var(--color-accent);
}

.sidebar-item.sidebar-disabled {
    opacity: 0.4;
    cursor: default;
    pointer-events: none;
}

.sidebar-icon {
    font-size: 1rem;
    flex-shrink: 0;
    width: 1.25rem;
    text-align: center;
}

.sidebar-label {
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0.25rem 0.625rem 0.5rem;
    padding: 0.4rem;
    border: none;
    border-radius: var(--radius);
    background: transparent;
    color: var(--color-muted);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.sidebar-toggle:hover {
    background: rgba(99, 102, 241, 0.08);
    color: var(--color-accent);
}

.sidebar-toggle-icon {
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.sidebar-toggle-icon.collapsed {
    transform: rotate(180deg);
}

/* Collapsed sidebar: hide labels, only show icons */
.sidebar-collapsed .sidebar-label,
.sidebar-collapsed .sidebar-section-label {
    display: none;
}

.sidebar-collapsed .sidebar-item {
    justify-content: center;
    padding: 0.5rem 0;
    border-left: none;
}

.sidebar-collapsed .sidebar-toggle {
    margin: 0.25rem auto 0.5rem;
}

/* ── Trace Detail: Two-Panel Layout ────────────────────── */

.trace-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 0;
    min-height: 0;
    height: calc(100vh - 3rem);
    overflow: hidden;
}

.trace-layout .trace-timeline-panel {
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    padding: 0.75rem 0;
    background: var(--color-bg);
}

.trace-layout .trace-detail-panel {
    overflow-y: auto;
    padding: 1.25rem;
}

/* ── Timeline ──────────────────────────────────────────── */

.timeline-header {
    padding: 0.5rem 1rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.timeline-search {
    width: 100%;
    padding: 0.375rem 0.75rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.timeline-search:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.15);
}

.timeline-filters {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.timeline-chip {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-muted);
    cursor: pointer;
    transition: background 0.1s, color 0.1s, border-color 0.1s;
}

.timeline-chip:hover {
    border-color: var(--color-accent);
    color: var(--color-text);
}

.timeline-chip.active {
    background: rgba(99, 102, 241, 0.12);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.timeline-stats {
    display: flex;
    gap: 0.75rem;
    font-size: 0.7rem;
    color: var(--color-muted);
    padding: 0.375rem 1rem;
    border-bottom: 1px solid var(--color-border);
}

.timeline-stats .mono {
    color: var(--color-text);
}

/* Timeline rows */
.timeline-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: background 0.1s;
    border-left: 3px solid transparent;
    font-size: 0.8rem;
}

.timeline-row:hover {
    background: rgba(99, 102, 241, 0.04);
}

.timeline-row.selected {
    background: rgba(99, 102, 241, 0.08);
    border-left-color: var(--color-accent);
}

.timeline-row-icon {
    font-size: 0.75rem;
    width: 1.25rem;
    text-align: center;
    flex-shrink: 0;
}

.timeline-row-id {
    font-family: var(--font-mono);
    font-weight: 500;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.timeline-row-meta {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    font-size: 0.7rem;
    color: var(--color-muted);
    flex-shrink: 0;
}

.timeline-duration-bar {
    width: 3rem;
    height: 4px;
    border-radius: 2px;
    background: var(--color-border);
    overflow: hidden;
    flex-shrink: 0;
}

.timeline-duration-fill {
    height: 100%;
    border-radius: 2px;
    background: var(--color-accent);
    transition: width 0.2s ease;
}

/* Timeline hierarchy — root (event) vs child (generation, span, tool, evaluator) */
.timeline-root {
    padding-left: 0.75rem;
    font-weight: 600;
    border-left: 3px solid var(--color-accent);
    opacity: 0.85;
}

.timeline-root:hover {
    opacity: 1;
}

.timeline-child {
    padding-left: 2rem;
    position: relative;
}

.timeline-connector {
    position: absolute;
    left: 1.15rem;
    top: 0;
    bottom: 50%;
    width: 1px;
    background: var(--color-border);
}

.timeline-connector::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0.5rem;
    height: 1px;
    background: var(--color-border);
}

.timeline-child:not(.timeline-last-child) .timeline-connector {
    bottom: 0;
}

/* ── Span Detail Panel ─────────────────────────────────── */

.span-detail-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-muted);
    font-size: 0.9rem;
}

.span-detail-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.span-detail-id {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1rem;
}

.span-badges {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.span-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1rem;
}

.span-tab {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

.span-tab:hover {
    color: var(--color-text);
}

.span-tab.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

/* Input/Output sections in span detail */
.span-section {
    margin-bottom: 1rem;
}

.span-section-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-muted);
    margin-bottom: 0.375rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.span-input-block {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.75rem;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 24rem;
    overflow-y: auto;
}

.span-output-block {
    background: var(--color-output-bg);
    border: 1px solid var(--color-output-border);
    border-left: 4px solid var(--color-tool);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 0.75rem;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 24rem;
    overflow-y: auto;
}

/* Cost badge */
.badge-cost {
    background: rgba(245, 158, 11, 0.12);
    color: var(--color-started);
    font-family: var(--font-mono);
    font-size: 0.7rem;
}

/* Environment badge (purple) */
.badge-env {
    background: rgba(147, 51, 234, 0.12);
    color: #a855f7;
    font-size: 0.7rem;
    text-transform: lowercase;
}

/* User ID badge (blue) */
.badge-user {
    background: rgba(59, 130, 246, 0.12);
    color: #60a5fa;
    font-size: 0.7rem;
}
.badge-user::before { content: "👤 "; }

/* Session badge (green) */
.badge-session {
    background: rgba(34, 197, 94, 0.12);
    color: #4ade80;
    font-size: 0.7rem;
    font-family: var(--font-mono);
    max-width: 18ch;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.badge-session::before { content: "🔗 "; }

/* Release badge (slate) */
.badge-release {
    background: rgba(148, 163, 184, 0.15);
    color: #94a3b8;
    font-size: 0.7rem;
    font-family: var(--font-mono);
}
.badge-release::before { content: "🏷 "; }

/* Copy button */
.btn-copy {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: transparent;
    color: var(--color-muted);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.btn-copy:hover {
    border-color: var(--color-accent);
    color: var(--color-text);
}

.btn-copy.copied {
    border-color: var(--color-done);
    color: var(--color-done);
}

/* Markdown toggle button */
.markdown-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.6rem;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-accent);
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    margin-bottom: 0.5rem;
}
.markdown-toggle-btn:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--color-accent);
}

/* Markdown rendered body */
.markdown-body {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--color-text);
    max-width: 72ch;
    word-wrap: break-word;
    overflow-wrap: break-word;
}
.markdown-body h1, .markdown-body h2, .markdown-body h3,
.markdown-body h4, .markdown-body h5, .markdown-body h6 {
    margin-top: 1em; margin-bottom: 0.5em; font-weight: 600;
}
.markdown-body h1 { font-size: 1.4em; }
.markdown-body h2 { font-size: 1.2em; }
.markdown-body h3 { font-size: 1.05em; }
.markdown-body p { margin: 0.5em 0; }
.markdown-body ul, .markdown-body ol { padding-left: 1.5em; margin: 0.5em 0; }
.markdown-body li { margin: 0.25em 0; }
.markdown-body code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    padding: 0.15em 0.35em;
    border-radius: 3px;
    background: rgba(255,255,255,0.06);
}
.markdown-body pre {
    margin: 0.75em 0;
    padding: 0.75em 1em;
    border-radius: var(--radius);
    background: rgba(0,0,0,0.2);
    overflow-x: auto;
}
.markdown-body pre code { padding: 0; background: none; }
.markdown-body blockquote {
    margin: 0.5em 0;
    padding: 0.25em 1em;
    border-left: 3px solid var(--color-accent);
    color: var(--color-muted);
}
.markdown-body a { color: var(--color-accent); text-decoration: underline; }
.markdown-body table { border-collapse: collapse; margin: 0.75em 0; width: 100%; }
.markdown-body th, .markdown-body td {
    border: 1px solid var(--color-border);
    padding: 0.35em 0.75em;
    text-align: left;
}
.markdown-body th { background: rgba(255,255,255,0.04); font-weight: 600; }
.markdown-body hr { border: none; border-top: 1px solid var(--color-border); margin: 1em 0; }

/* Expandable long content */
.expandable-collapsed {
    position: relative;
    max-height: 12rem;
    overflow: hidden;
}
.expandable-collapsed::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3rem;
    background: linear-gradient(transparent, var(--color-surface));
    pointer-events: none;
}
.expandable-toggle {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--color-accent);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem 0;
}
.expandable-toggle:hover { text-decoration: underline; }

/* Trace ID copy affordance */
.trace-id-code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    background: rgba(255,255,255,0.04);
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    cursor: pointer;
    user-select: all;
    transition: background 0.15s;
}
.trace-id-code:hover {
    background: rgba(255,255,255,0.08);
}
.trace-id-code:active::after {
    content: " ✓";
    color: var(--color-done);
}

/* "Add to dataset" placeholder */
.btn-dataset-placeholder {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius);
    background: transparent;
    color: var(--color-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

/* ── Selector ──────────────────────────────────────────── */

.selector-form {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: end;
    padding: 1rem 1.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.selector-field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.selector-field label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.selector-field input:not([type="checkbox"]),
.selector-field select {
    padding: 0.5rem 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: 0.875rem;
    min-width: 12rem;
}

.selector-field input:not([type="checkbox"]):focus,
.selector-field select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.selector-field label:has(input[type="checkbox"]) {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    user-select: none;
    color: var(--color-muted);
    font-size: 0.8rem;
    transition: color 0.15s;
    padding: 0.5rem 0;
}
.selector-field label:has(input[type="checkbox"]):hover {
    color: var(--color-text);
}

.selector-field input[type="checkbox"],
.component-filter-bar input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 1rem;
    height: 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: 0.25rem;
    background: var(--color-surface);
    cursor: pointer;
    position: relative;
    transition: background 0.15s, border-color 0.15s;
    flex-shrink: 0;
}
.selector-field input[type="checkbox"]:hover,
.component-filter-bar input[type="checkbox"]:hover {
    border-color: var(--color-accent);
}
.selector-field input[type="checkbox"]:checked,
.component-filter-bar input[type="checkbox"]:checked {
    background: var(--color-accent);
    border-color: var(--color-accent);
}
.selector-field input[type="checkbox"]:checked::after,
.component-filter-bar input[type="checkbox"]:checked::after {
    content: "";
    position: absolute;
    left: 3px;
    top: 0.5px;
    width: 5px;
    height: 9px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-primary {
    background: var(--color-accent);
    color: white;
}

.btn-primary:hover {
    background: var(--color-accent-hover);
}

.btn-secondary {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.btn-secondary:hover {
    background: var(--color-border);
}

/* ── Run List Table ────────────────────────────────────── */

.run-list-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.run-list-table thead th {
    padding: 0.625rem 0.75rem;
    text-align: left;
    font-weight: 500;
    color: var(--color-muted);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.run-list-table tbody tr {
    cursor: pointer;
    transition: background 0.1s;
}

.run-list-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.06);
}

.run-list-table tbody td {
    padding: 0.625rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

.run-list-table .col-select {
    width: 2rem;
    text-align: center;
    padding-left: 0.5rem;
    padding-right: 0.25rem;
}

.run-list-table .col-select input[type="checkbox"] {
    cursor: pointer;
    width: 1rem;
    height: 1rem;
    accent-color: var(--color-accent);
}

.selection-info {
    font-size: 0.8rem;
    color: var(--color-muted);
    margin-left: 0.25rem;
}

/* ── Badges ────────────────────────────────────────────── */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1.5;
}

.badge-done    { background: rgba(34,197,94,0.15); color: var(--color-done); }
.badge-error   { background: rgba(239,68,68,0.15); color: var(--color-error); }
.badge-started { background: rgba(245,158,11,0.15); color: var(--color-started); }
.badge-unknown { background: rgba(107,114,128,0.15); color: var(--color-unknown); }

.badge-generation { background: rgba(59,130,246,0.15); color: var(--color-generation); }
.badge-tool       { background: rgba(34,197,94,0.15); color: var(--color-tool); }
.badge-span       { background: rgba(107,114,128,0.15); color: var(--color-span); }
.badge-event      { background: rgba(234,179,8,0.15); color: var(--color-event); }
.badge-evaluator  { background: rgba(168,85,247,0.15); color: var(--color-evaluator); }

.badge-model {
    background: rgba(99, 102, 241, 0.12);
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 0.7rem;
}

.badge-stalled {
    background: rgba(239, 68, 68, 0.12);
    color: var(--color-error);
    animation: pulse-dot 2s ease-in-out infinite;
}

.badge-legacy {
    background: rgba(180, 130, 50, 0.15);
    color: #d4a843;
}

.legacy-banner {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(180, 130, 50, 0.08);
    border: 1px solid rgba(180, 130, 50, 0.25);
    border-radius: var(--radius-lg);
    font-size: 0.85rem;
    color: #d4a843;
    margin-bottom: 0.75rem;
}

/* ── Trace Detail ──────────────────────────────────────── */

.trace-header {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    padding: 1rem 1.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
}

.trace-stat {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.trace-stat-label {
    font-size: 0.7rem;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.trace-stat-value {
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.trace-stat-divider {
    width: 1px;
    height: 2rem;
    background: var(--color-border);
}

/* ── Trace Date Picker ────────────────────────────────── */

.trace-date-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.trace-date-label {
    font-size: 0.75rem;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.trace-date-input {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.35rem 0.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    color-scheme: dark;
}

.trace-date-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.15);
}

/* ── Component Filter Bar ──────────────────────────────── */

.component-filter-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 0;
    margin-bottom: 0.25rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.component-filter-bar label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    user-select: none;
    color: var(--color-muted);
    font-size: 0.8rem;
    letter-spacing: 0.01em;
    transition: color 0.15s;
}
.component-filter-bar label:hover {
    color: var(--color-text);
}

/* ── Component Card ────────────────────────────────────── */

.component-cards {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-show-more {
    margin-top: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.875rem;
    text-align: center;
    width: 100%;
}
.btn-show-more:hover {
    background: var(--color-border);
}

/* Page-size selector inline styling */
.page-size-select {
    min-width: 5rem;
}

/* Muted "Summary pending" badge */
.summary-unavailable {
    display: inline-block;
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius);
    background: var(--color-surface);
    color: var(--color-muted);
    border: 1px solid var(--color-border);
    cursor: help;
}

.summary-timeout {
    border-color: rgba(245, 158, 11, 0.4);
    color: var(--color-warn, var(--color-muted));
}

.component-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.component-card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    cursor: pointer;
    user-select: none;
}

.component-card-header:hover {
    background: rgba(99, 102, 241, 0.04);
}

.component-card-id {
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.component-card-meta {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--color-muted);
}

.component-card-body {
    padding: 0 1rem 1rem;
    border-top: 1px solid var(--color-border);
}

.card-search {
    margin-top: 0.75rem;
    margin-bottom: 0.25rem;
}

.card-search input {
    width: 100%;
    padding: 0.375rem 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.card-search input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.component-card-body pre {
    background: var(--color-bg);
    padding: 0.75rem;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-family: var(--font-mono);
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 20rem;
    overflow-y: auto;
    margin-top: 0.75rem;
}

.component-card-body h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-muted);
    margin-top: 0.75rem;
}

/* ── Live indicator ────────────────────────────────────── */

.live-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-done);
}

.live-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: var(--color-done);
    animation: pulse-dot 1.5s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* ── Utilities ─────────────────────────────────────────── */

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: var(--color-muted);
}

.spinner {
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 0.75rem;
}

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

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--color-muted);
}

.empty-hint {
    font-size: 0.85rem;
    margin-top: 0.5rem;
    opacity: 0.7;
}

.error-banner {
    padding: 0.75rem 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius);
    color: var(--color-error);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.ws-banner {
    padding: 0.5rem 1rem;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius);
    color: var(--color-started);
    font-size: 0.8rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.ws-banner-meta {
    color: var(--color-muted);
}

.btn-refetch {
    margin-left: auto;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    border: 1px solid rgba(245, 158, 11, 0.4);
    border-radius: var(--radius);
    background: transparent;
    color: var(--color-started);
    cursor: pointer;
    transition: background 0.15s;
}

.btn-refetch:hover {
    background: rgba(245, 158, 11, 0.15);
}

.mono { font-family: var(--font-mono); }
.text-muted { color: var(--color-muted); }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.flex-gap { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.ml-auto { margin-left: auto; }

/* ── Back link ─────────────────────────────────────────── */

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--color-muted);
    text-decoration: none;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    transition: color 0.15s;
}

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

/* ── Scoring Panel ─────────────────────────────────────── */

.scoring-panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
}

.scoring-title {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.scoring-buttons {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.btn-score {
    padding: 0.375rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    font-size: 1.25rem;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    line-height: 1;
}

.btn-score:hover:not(:disabled) {
    border-color: var(--color-accent);
    background: rgba(99, 102, 241, 0.08);
}

.btn-score:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.scoring-comment {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.scoring-comment input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: 0.875rem;
}

.scoring-comment input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.scoring-history {
    margin-top: 1rem;
    border-top: 1px solid var(--color-border);
    padding-top: 0.75rem;
}

.scoring-history h4 {
    font-size: 0.7rem;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.score-entry {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0;
    font-size: 0.8rem;
}

.score-icon {
    font-size: 1rem;
}

.score-name {
    font-weight: 500;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.score-comment {
    color: var(--color-muted);
    font-size: 0.8rem;
    font-style: italic;
}

.btn-score-delete {
    margin-left: auto;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-muted);
    cursor: pointer;
    font-size: 0.7rem;
    padding: 0.1rem 0.35rem;
    line-height: 1;
    transition: color 0.15s, border-color 0.15s;
}

.btn-score-delete:hover {
    color: #ef4444;
    border-color: #ef4444;
}

/* ── Annotation Section ────────────────────────────────── */

.annotations-section {
    margin-top: 1rem;
    border-top: 1px solid var(--color-border);
    padding-top: 0.75rem;
}

.annotations-section h4 {
    margin: 0 0 0.5rem;
    font-size: 0.85rem;
    color: var(--color-muted);
}

.annotations-list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-bottom: 0.5rem;
}

.annotation-entry {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    font-size: 0.8rem;
}

.annotation-comment {
    flex: 1;
}

.annotation-time {
    color: var(--color-muted);
    font-size: 0.7rem;
    white-space: nowrap;
}

.annotation-form {
    display: flex;
    gap: 0.35rem;
}

.annotation-input {
    flex: 1;
    padding: 0.3rem 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-bg);
    color: var(--color-fg);
    font-size: 0.8rem;
}

.annotation-input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.btn-annotate {
    padding: 0.3rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-bg);
    color: var(--color-fg);
    cursor: pointer;
    font-size: 0.8rem;
    transition: border-color 0.15s;
}

.btn-annotate:hover {
    border-color: var(--color-accent);
}

/* ── Component Annotations ─────────────────────────────── */

.annotations-section {
    margin-top: 1rem;
    border-top: 1px solid var(--color-border);
    padding-top: 0.75rem;
}

.annotations-section h4 {
    margin: 0 0 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-muted);
}

.annotations-list:empty {
    display: none;
}

.annotation-entry {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 0.35rem 0;
    border-bottom: 1px solid var(--color-border);
    gap: 1rem;
}

.annotation-comment {
    font-size: 0.85rem;
    flex: 1;
}

.annotation-time {
    font-size: 0.7rem;
    color: var(--color-muted);
    white-space: nowrap;
    font-family: var(--font-mono);
}

.annotation-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.annotation-input {
    flex: 1;
    padding: 0.35rem 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.85rem;
    background: var(--color-bg);
    color: var(--color-text);
}

.annotation-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 1px var(--color-accent);
}

.btn-annotate {
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: var(--color-bg);
    color: var(--color-text);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
}

.btn-annotate:hover {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.component-comment {
    font-style: italic;
    color: var(--color-muted);
    font-size: 0.85rem;
    margin: 0.25rem 0;
}

/* ── Phase 8: Type-Specific Card Layouts ───────────────── */

/* Formatted text block (replaces raw <pre> for prose content) */
.card-text-block {
    white-space: pre-wrap;
    word-break: break-word;
    font-family: inherit;
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--color-text);
    border-left: 4px solid var(--color-border);
    padding: 0.75rem 1rem;
    margin-top: 0.5rem;
    max-height: 20rem;
    overflow-y: auto;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 0 var(--radius) var(--radius) 0;
}

/* Key-value grid for structured fields (event/start cards) */
.card-kv-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.25rem 1rem;
    margin-top: 0.5rem;
    font-size: 0.85rem;
}

.card-kv-key {
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    white-space: nowrap;
}

.card-kv-value {
    color: var(--color-text);
    word-break: break-word;
}

/* Collapsible prompt/section headers */
.card-prompt-section {
    margin-top: 0.75rem;
}

.card-prompt-section > summary {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-muted);
    cursor: pointer;
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-prompt-section > summary::before {
    content: "▸";
    display: inline-block;
    transition: transform 0.15s;
}

.card-prompt-section[open] > summary::before {
    transform: rotate(90deg);
}

/* AI response block (generation cards) */
.card-response-section {
    background: rgba(59, 130, 246, 0.06);
    border-left: 4px solid var(--color-generation);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 0.75rem 1rem;
    margin-top: 0.5rem;
}

.card-response-section .card-text-block {
    border-left: none;
    padding: 0;
    margin-top: 0;
    background: transparent;
    max-height: none;
}

/* Token usage inline */
.card-token-usage {
    margin-top: 0.5rem;
    padding: 0.25rem 0;
}

/* Connection section (RAG prompt inputs) */
.card-connection-section {
    margin-top: 0.5rem;
}

.card-connection-section > summary {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-muted);
    cursor: pointer;
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-connection-section > summary::before {
    content: "▸";
    display: inline-block;
    transition: transform 0.15s;
}

.card-connection-section[open] > summary::before {
    transform: rotate(90deg);
}

/* Transformation / span cards: input → output layout */
.card-transformation {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-top: 0.5rem;
}

.card-transformation-side {
    flex: 1;
    min-width: 0;
}

.card-transformation-arrow {
    display: flex;
    align-items: center;
    font-size: 1.25rem;
    color: var(--color-muted);
    padding-top: 1.5rem;
    flex-shrink: 0;
}

/* Evaluator cards */
.card-eval-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    margin-top: 0.5rem;
}

.card-eval-branch {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-muted);
}

.card-eval-result {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
}

.card-eval-true {
    background: rgba(34, 197, 94, 0.12);
    color: var(--color-done);
}

.card-eval-false {
    background: rgba(239, 68, 68, 0.12);
    color: var(--color-error);
}

.card-eval-string {
    background: rgba(168, 85, 247, 0.10);
    color: var(--color-evaluator);
    font-size: 0.875rem;
    font-weight: 400;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.card-eval-other {
    background: rgba(107, 114, 128, 0.10);
    color: var(--color-muted);
    font-size: 0.875rem;
    font-weight: 400;
    font-family: var(--font-mono);
}

/* RAG documents section */
.card-rag-section {
    margin-top: 0.75rem;
    border-left: 4px solid var(--color-generation);
    padding-left: 0.75rem;
}

.card-rag-section > summary {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-muted);
    cursor: pointer;
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-rag-section > summary::before {
    content: "▸";
    display: inline-block;
    transition: transform 0.15s;
}

.card-rag-section[open] > summary::before {
    transform: rotate(90deg);
}

.card-rag-doc {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border);
}

.card-rag-doc:last-child {
    border-bottom: none;
}

.card-rag-doc-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-rag-title {
    font-weight: 600;
    font-size: 0.85rem;
}

.card-rag-score {
    font-size: 0.75rem;
    padding: 0.125rem 0.5rem;
    border-radius: 9999px;
    background: rgba(59, 130, 246, 0.12);
    color: var(--color-generation);
    font-family: var(--font-mono);
}

.card-rag-preview {
    font-size: 0.8rem;
    color: var(--color-muted);
    max-height: 4.5em;
    overflow: hidden;
    border-left: none;
    padding: 0;
    margin-top: 0;
    background: transparent;
}

/* Raw JSON fallback (collapsible) */
.card-raw-json {
    margin-top: 0.75rem;
}

.card-raw-json > summary {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-muted);
    cursor: pointer;
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-raw-json > summary::before {
    content: "▸";
    display: inline-block;
    transition: transform 0.15s;
}

.card-raw-json[open] > summary::before {
    transform: rotate(90deg);
}

.card-raw-json pre,
.card-raw-json-pre {
    background: var(--color-bg);
    padding: 0.75rem;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-family: var(--font-mono);
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 20rem;
    overflow-y: auto;
    margin-top: 0.5rem;
}

/* SmartJsonValue extracted field */
.smart-json-field {
    margin-top: 0.5rem;
}

/* Tool card metadata pills */
.card-tool-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.badge-tool-meta {
    display: inline-flex;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.125rem 0.5rem;
    border-radius: 999px;
    background: rgba(34, 197, 94, 0.12);
    color: var(--color-tool);
}

/* Responsive: stack transformation on narrow screens */
@media (max-width: 768px) {
    .card-transformation {
        flex-direction: column;
    }

    .card-transformation-arrow {
        padding-top: 0;
        transform: rotate(90deg);
        align-self: center;
    }
}

/* ── Toast Notifications ───────────────────────────────── */

.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 1000;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    pointer-events: auto;
    animation: toast-in 0.25s ease-out;
    max-width: 22rem;
}

.toast-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: var(--color-error);
}

.toast-success {
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.4);
    color: var(--color-done);
}

.toast-dismiss {
    margin-left: auto;
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 0.8rem;
    opacity: 0.7;
    padding: 0;
    line-height: 1;
}

.toast-dismiss:hover {
    opacity: 1;
}

@keyframes toast-in {
    from { opacity: 0; transform: translateY(0.5rem); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Refresh Button ────────────────────────────────────── */

.run-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.run-list-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-refresh {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.375rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 0.8rem;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.btn-refresh:hover {
    border-color: var(--color-accent);
    background: rgba(99, 102, 241, 0.08);
}

.btn-refresh .refresh-icon {
    display: inline-block;
    transition: transform 0.3s;
}

.btn-refresh:active .refresh-icon {
    transform: rotate(180deg);
}

/* ── Pagination footer ─────────────────────────────────── */

.pagination-footer {
    display: flex;
    justify-content: center;
    padding: 1rem 0;
    margin-top: 0.5rem;
    border-top: 1px solid var(--color-border);
}

.btn-pagination {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--color-accent);
    border-radius: var(--radius);
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, transform 0.1s;
}

.btn-pagination:hover {
    background: rgba(99, 102, 241, 0.2);
}

.btn-pagination:active {
    transform: translateY(1px);
}

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

/* ── Responsive — Tablet (≤768px) ──────────────────────── */

@media (max-width: 768px) {
    .app-header {
        padding: 0.5rem 1rem;
    }

    .app-main {
        padding: 1rem;
    }

    .selector-form {
        flex-direction: column;
        align-items: stretch;
    }

    .selector-field input:not([type="checkbox"]),
    .selector-field select {
        min-width: unset;
        width: 100%;
    }

    .run-list-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .trace-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .trace-stat-divider {
        display: none;
    }

    .component-card-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .component-card-meta {
        margin-left: 0;
        width: 100%;
        justify-content: flex-start;
    }

    .scoring-panel {
        padding: 0.75rem 1rem;
    }

    .run-list-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* ── Responsive — Mobile (≤640px) ──────────────────────── */

@media (max-width: 640px) {
    .app-header h1 {
        font-size: 0.95rem;
    }

    .app-main {
        padding: 0.75rem;
    }

    .component-cards {
        gap: 0.5rem;
    }

    .component-card-header {
        padding: 0.625rem 0.75rem;
    }

    .component-card-body {
        padding: 0 0.75rem 0.75rem;
    }

    .component-card-body pre {
        font-size: 0.7rem;
        max-height: 14rem;
    }

    .scoring-buttons {
        gap: 0.75rem;
    }

    .btn-score {
        min-width: 3rem;
        min-height: 2.75rem;
        font-size: 1.5rem;
    }

    .scoring-comment input,
    .annotation-input {
        font-size: 1rem;
        padding: 0.5rem 0.75rem;
    }

    .btn-annotate,
    .btn-refetch,
    .btn-refresh {
        min-height: 2.75rem;
        font-size: 0.85rem;
    }

    .badge {
        font-size: 0.7rem;
    }

    .trace-stat-value {
        font-size: 0.875rem;
    }
}

/* ── Theme Toggle Button ────────────────────────────────── */

.btn-theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    transition: border-color 0.15s, background 0.15s;
}

.btn-theme-toggle:hover {
    border-color: var(--color-accent);
    background: rgba(99, 102, 241, 0.08);
}

/* ── Light Mode ────────────────────────────────────────── */

html[data-theme="light"] {
    --color-bg:         #f8f9fb;
    --color-surface:    #ffffff;
    --color-border:     #e2e4ea;
    --color-text:       #1a1d2e;
    --color-muted:      #6b7280;
    --color-accent:     #4f46e5;
    --color-accent-hover: #4338ca;

    --color-done:       #16a34a;
    --color-error:      #dc2626;
    --color-started:    #d97706;
    --color-unknown:    #9ca3af;

    --color-generation: #2563eb;
    --color-tool:       #16a34a;
    --color-span:       #9ca3af;
    --color-event:      #ca8a04;
    --color-evaluator:  #9333ea;
}

html[data-theme="light"] .component-card-header:hover {
    background: rgba(79, 70, 229, 0.04);
}

html[data-theme="light"] .run-list-table tbody tr:hover {
    background: rgba(79, 70, 229, 0.04);
}

html[data-theme="light"] .badge-done    { background: rgba(22,163,74,0.1);  color: var(--color-done); }
html[data-theme="light"] .badge-error   { background: rgba(220,38,38,0.1);  color: var(--color-error); }
html[data-theme="light"] .badge-started { background: rgba(217,119,6,0.1);  color: var(--color-started); }
html[data-theme="light"] .badge-unknown { background: rgba(156,163,175,0.1);color: var(--color-unknown); }

html[data-theme="light"] .badge-generation { background: rgba(37,99,235,0.1);  color: var(--color-generation); }
html[data-theme="light"] .badge-tool       { background: rgba(22,163,74,0.1);  color: var(--color-tool); }
html[data-theme="light"] .badge-span       { background: rgba(156,163,175,0.1);color: var(--color-span); }
html[data-theme="light"] .badge-event      { background: rgba(202,138,4,0.1);  color: var(--color-event); }
html[data-theme="light"] .badge-evaluator  { background: rgba(147,51,234,0.1); color: var(--color-evaluator); }

html[data-theme="light"] .badge-model {
    background: rgba(79, 70, 229, 0.08);
    color: var(--color-accent);
}

html[data-theme="light"] .badge-stalled {
    background: rgba(220, 38, 38, 0.08);
}

/* ── Phase 9 Light Mode ────────────────────────────────── */

html[data-theme="light"] .sidebar {
    background: #fff;
}

html[data-theme="light"] .sidebar-item:hover {
    background: rgba(79, 70, 229, 0.04);
}

html[data-theme="light"] .sidebar-item.active {
    background: rgba(79, 70, 229, 0.06);
    color: var(--color-accent);
}

html[data-theme="light"] .timeline-row:hover {
    background: rgba(79, 70, 229, 0.03);
}

html[data-theme="light"] .timeline-row.selected {
    background: rgba(79, 70, 229, 0.06);
}

html[data-theme="light"] .span-output-block {
    --color-output-bg: rgba(22, 163, 74, 0.04);
    --color-output-border: rgba(22, 163, 74, 0.2);
}

html[data-theme="light"] .badge-cost {
    background: rgba(217, 119, 6, 0.08);
}

html[data-theme="light"] .badge-env {
    background: rgba(147, 51, 234, 0.08);
    color: #7c3aed;
}

html[data-theme="light"] .badge-user {
    background: rgba(59, 130, 246, 0.08);
    color: #2563eb;
}

html[data-theme="light"] .badge-session {
    background: rgba(22, 163, 74, 0.08);
    color: #16a34a;
}

html[data-theme="light"] .badge-release {
    background: rgba(100, 116, 139, 0.1);
    color: #475569;
}

html[data-theme="light"] .markdown-body code {
    background: rgba(0, 0, 0, 0.05);
}
html[data-theme="light"] .markdown-body pre {
    background: rgba(0, 0, 0, 0.04);
}
html[data-theme="light"] .markdown-body th {
    background: rgba(0, 0, 0, 0.03);
}

html[data-theme="light"] .expandable-collapsed::after {
    background: linear-gradient(transparent, #fff);
}

html[data-theme="light"] .trace-id-code {
    background: rgba(0, 0, 0, 0.04);
}
html[data-theme="light"] .trace-id-code:hover {
    background: rgba(0, 0, 0, 0.07);
}

/* ── Phase 9 Responsive ────────────────────────────────── */

@media (max-width: 1024px) {
    .app-layout {
        grid-template-columns: 48px 1fr;
    }

    .sidebar .sidebar-label,
    .sidebar .sidebar-section-label {
        display: none;
    }

    .sidebar .sidebar-item {
        justify-content: center;
        padding: 0.5rem 0;
        border-left: none;
    }

    .trace-layout {
        grid-template-columns: 280px 1fr;
    }
}

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

    .sidebar {
        display: none;
    }

    .trace-layout {
        grid-template-columns: 1fr;
        height: auto;
    }

    .trace-layout .trace-timeline-panel {
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        max-height: 40vh;
    }

    .trace-layout .trace-detail-panel {
        padding: 1rem;
    }
}

html[data-theme="light"] .badge-legacy {
    background: rgba(180, 130, 50, 0.08);
    color: #a07830;
}

html[data-theme="light"] .legacy-banner {
    background: rgba(180, 130, 50, 0.05);
    border-color: rgba(180, 130, 50, 0.2);
    color: #a07830;
}

html[data-theme="light"] .error-banner {
    background: rgba(220, 38, 38, 0.06);
    border-color: rgba(220, 38, 38, 0.2);
}

html[data-theme="light"] .ws-banner {
    background: rgba(217, 119, 6, 0.06);
    border-color: rgba(217, 119, 6, 0.2);
}

html[data-theme="light"] .toast-error {
    background: rgba(220, 38, 38, 0.08);
    border-color: rgba(220, 38, 38, 0.25);
}

html[data-theme="light"] .toast-success {
    background: rgba(22, 163, 74, 0.08);
    border-color: rgba(22, 163, 74, 0.25);
}

html[data-theme="light"] .component-card-body pre {
    background: #f1f3f5;
}

/* Phase 8 light theme overrides */
html[data-theme="light"] .card-text-block {
    background: rgba(0, 0, 0, 0.02);
}

html[data-theme="light"] .card-response-section {
    background: rgba(37, 99, 235, 0.04);
}

html[data-theme="light"] .card-eval-true {
    background: rgba(22, 163, 74, 0.08);
}

html[data-theme="light"] .card-eval-false {
    background: rgba(220, 38, 38, 0.08);
}

html[data-theme="light"] .card-eval-string {
    background: rgba(147, 51, 234, 0.06);
}

html[data-theme="light"] .card-eval-other {
    background: rgba(156, 163, 175, 0.06);
}

html[data-theme="light"] .card-rag-score {
    background: rgba(37, 99, 235, 0.08);
}

html[data-theme="light"] .card-raw-json pre,
html[data-theme="light"] .card-raw-json-pre {
    background: #f1f3f5;
}

html[data-theme="light"] .btn-score:hover:not(:disabled) {
    background: rgba(79, 70, 229, 0.06);
}

html[data-theme="light"] .btn-refresh:hover {
    background: rgba(79, 70, 229, 0.06);
}

html[data-theme="light"] .btn-pagination {
    background: rgba(79, 70, 229, 0.08);
}

html[data-theme="light"] .btn-pagination:hover {
    background: rgba(79, 70, 229, 0.15);
}

html[data-theme="light"] .btn-theme-toggle:hover {
    background: rgba(79, 70, 229, 0.06);
}

/* ========================================================================
   Tag pills & Tag editor
   ======================================================================== */

.tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 500;
    line-height: 1.4;
    white-space: nowrap;
}

.tag-pill-auto {
    background: var(--color-border);
    color: var(--color-text-muted);
}

.tag-pill-user {
    background: rgba(79, 70, 229, 0.15);
    color: rgba(79, 70, 229, 1);
}

.tag-pill-remove {
    all: unset;
    cursor: pointer;
    font-size: 0.85rem;
    line-height: 1;
    margin-left: 0.1rem;
    opacity: 0.6;
}

.tag-pill-remove:hover {
    opacity: 1;
}

.tag-editor {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
}

.tag-editor-title {
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0 0 0.5rem;
}

.tag-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 0.5rem;
    min-height: 1.6rem;
}

.tag-editor-input {
    display: flex;
    gap: 0.35rem;
    align-items: center;
}

.tag-editor-input input {
    flex: 1;
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
}

.tag-editor-error {
    color: #ef4444;
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

/* ========================================================================
   Annotation search
   ======================================================================== */

.annotation-search-form {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 1rem;
}

.annotation-search-input {
    flex: 1;
    padding: 0.4rem 0.75rem;
    font-size: 0.9rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
}

.annotation-search-days {
    padding: 0.4rem 0.5rem;
    font-size: 0.85rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
}

.annotation-search-summary {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

/* ========================================================================
   Light theme overrides for tags & search
   ======================================================================== */

html[data-theme="light"] .tag-pill-auto {
    background: #e5e7eb;
    color: #6b7280;
}

html[data-theme="light"] .tag-pill-user {
    background: rgba(79, 70, 229, 0.1);
    color: #4f46e5;
}

/* ========================================================================
   Phase 10 — Analytics, Export & Navigation
   ======================================================================== */

/* ── Toggle group (three-way segmented control) ───────── */

.toggle-group {
    display: inline-flex;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.toggle-segment {
    padding: 0.2rem 0.6rem;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.toggle-segment:not(:last-child) {
    border-right: 1px solid var(--color-border);
}

.toggle-segment:hover {
    background: rgba(99, 102, 241, 0.08);
}

.toggle-segment.active {
    background: rgba(99, 102, 241, 0.15);
    color: var(--color-accent);
    font-weight: 600;
}

/* ── JSON pre block ───────────────────────────────────── */

.json-pre {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.45;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--color-text);
    max-height: 500px;
    overflow-y: auto;
}

/* ── Sidebar breadcrumb ───────────────────────────────── */

.sidebar-breadcrumb {
    font-size: 0.7rem;
    color: var(--color-muted);
    padding: 0.5rem 0.75rem;
    margin: 0 0 0.25rem;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ── Export menu ──────────────────────────────────────── */

.export-menu {
    position: relative;
    display: inline-block;
}

.export-menu-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.2rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.export-menu-btn:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--color-accent);
}

.export-menu-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    min-width: 140px;
    z-index: 50;
    overflow: hidden;
}

.export-menu-item {
    display: block;
    width: 100%;
    padding: 0.45rem 0.75rem;
    font-size: 0.8rem;
    color: var(--color-text);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: background 0.1s;
}

.export-menu-item:hover {
    background: rgba(99, 102, 241, 0.12);
}

.export-menu-item:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
}

/* ── Analytics page ───────────────────────────────────── */

.analytics-page {
    padding: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.analytics-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.analytics-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.analytics-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.analytics-controls label {
    font-size: 0.8rem;
    color: var(--color-muted);
}

.analytics-controls select,
.analytics-controls input[type="number"] {
    padding: 0.3rem 0.5rem;
    font-size: 0.8rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
}

/* ── KPI cards ────────────────────────────────────────── */

.kpi-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.kpi-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.kpi-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.kpi-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-text);
    font-family: var(--font-mono);
    line-height: 1.2;
}

.kpi-subtitle {
    font-size: 0.72rem;
    color: var(--color-muted);
}

/* ── Chart grid ───────────────────────────────────────── */

.chart-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.chart-wide {
    grid-column: 1 / -1;
}

@media (max-width: 900px) {
    .chart-grid {
        grid-template-columns: 1fr;
    }
}

/* ── Chart container ──────────────────────────────────── */

.chart-container {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.chart-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.chart-svg {
    width: 100%;
    height: auto;
}

.chart-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 180px;
    color: var(--color-muted);
    font-size: 0.85rem;
}

/* SVG chart styling */
.chart-grid-line {
    stroke: var(--color-border);
    stroke-dasharray: 3 3;
}

.chart-tick {
    font-size: 10px;
    fill: var(--color-muted);
    font-family: var(--font-mono);
}

.chart-label {
    font-size: 9px;
    fill: var(--color-muted);
    font-family: var(--font-mono);
}

.chart-dot {
    transition: r 0.15s;
}

.chart-dot:hover {
    r: 5;
}

/* ── Chart legend ─────────────────────────────────────── */

.chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.25rem;
}

.chart-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.72rem;
    color: var(--color-muted);
}

.chart-legend-swatch {
    width: 10px;
    height: 10px;
    border-radius: 2px;
    display: inline-block;
    flex-shrink: 0;
}

/* ── Model Costs Table ─────────────────────────────────── */

.model-costs-table-container {
    grid-column: 1 / -1;
    margin-bottom: 1.25rem;
}

.model-costs-scroll {
    overflow-x: auto;
}

.model-costs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.model-costs-table thead th {
    text-align: left;
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-muted);
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

.model-costs-table thead th.num {
    text-align: right;
}

.model-costs-table tbody td,
.model-costs-table tfoot td {
    padding: 0.4rem 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--color-text);
}

.model-costs-table tbody td.num,
.model-costs-table tfoot td.num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.model-costs-table tbody td.model-name {
    font-weight: 500;
}

.model-costs-table tbody td.cost {
    color: #10b981;
    font-weight: 500;
}

.model-costs-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.04);
}

.model-costs-table tfoot .totals-row td {
    border-top: 2px solid var(--color-border);
    border-bottom: none;
    font-weight: 600;
    padding-top: 0.6rem;
}

.model-costs-table tfoot .totals-row td.cost {
    color: #10b981;
    font-weight: 700;
}

/* ========================================================================
   Light theme overrides for Phase 10
   ======================================================================== */

html[data-theme="light"] .model-costs-table tbody td {
    border-bottom-color: rgba(0, 0, 0, 0.04);
}

html[data-theme="light"] .model-costs-table tbody tr:hover {
    background: rgba(79, 70, 229, 0.03);
}

html[data-theme="light"] .kpi-card {
    background: #fff;
    border-color: #e5e7eb;
    border-left-color: var(--color-accent);
}

html[data-theme="light"] .chart-container {
    background: #fff;
    border-color: #e5e7eb;
}

html[data-theme="light"] .json-pre {
    background: #f9fafb;
    border-color: #e5e7eb;
}

html[data-theme="light"] .toggle-segment.active {
    background: rgba(79, 70, 229, 0.1);
    color: #4f46e5;
}

html[data-theme="light"] .export-menu-dropdown {
    background: #fff;
    border-color: #e5e7eb;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

html[data-theme="light"] .export-menu-item:hover {
    background: rgba(79, 70, 229, 0.06);
}