:root {
    color-scheme: light dark;

    /* Typography — system font stack, no external dependencies */
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    --mono: "SF Mono", "Cascadia Code", "JetBrains Mono", Consolas, "Liberation Mono", ui-monospace, monospace;

    /* Surfaces — layered depth */
    --bg: #f8f9fc;
    --surface: #ffffff;
    --surface-alt: #f3f4f8;
    --surface-inset: #eef0f5;
    --response-bg: #fafbfd;

    /* Text */
    --text: #1a1d26;
    --text-strong: #0f1118;
    --text-secondary: #4a5068;
    --text-muted: #6b7394;
    --text-faint: #9ba3c2;

    /* Borders */
    --border: #e2e5f0;
    --border-subtle: #eceef5;

    /* Accents */
    --accent: #4f46e5;
    --accent-hover: #4338ca;
    --accent-soft: rgba(79, 70, 229, 0.08);
    --accent-glow: rgba(79, 70, 229, 0.12);
    --link: #4f46e5;

    /* Code */
    --code-bg: #f0f1f7;
    --inline-code-bg: #eff0f7;

    /* Task accents */
    --task-main: #4f46e5;
    --task-plan: #7c3aed;
    --task-memory: #8b949e;
    --task-relocation: #ea580c;
    --task-grouping: #0891b2;
    --task-default: #57606a;
    --tool-name: #7c3aed;
    --danger: #dc2626;

    /* Badge tints */
    --badge-model-bg: #eef2ff;    --badge-model-fg: #3730a3;
    --badge-tokens-bg: #ecfdf5;   --badge-tokens-fg: #065f46;
    --badge-duration-bg: #fefce8; --badge-duration-fg: #854d0e;
    --badge-error-bg: #fef2f2;    --badge-error-fg: #dc2626;
    --badge-neutral-bg: #f1f3f9;
    --badge-neutral-fg: #4a5068;

    /* Effects */
    --shadow-sm: 0 1px 2px rgba(15, 17, 24, 0.04), 0 1px 3px rgba(15, 17, 24, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(15, 17, 24, 0.05), 0 2px 4px -2px rgba(15, 17, 24, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(15, 17, 24, 0.06), 0 4px 6px -4px rgba(15, 17, 24, 0.04);
    --radius: 10px;
    --radius-sm: 6px;
    --radius-xs: 4px;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0c0d14;
        --surface: #15171f;
        --surface-alt: #1e2130;
        --surface-inset: #12141b;
        --response-bg: #15171f;

        --text: #d1d5e8;
        --text-strong: #edf0fa;
        --text-secondary: #9ba3c2;
        --text-muted: #6b7394;
        --text-faint: #4a5068;

        --border: #262940;
        --border-subtle: #1e2130;

        --accent: #818cf8;
        --accent-hover: #a5b4fc;
        --accent-soft: rgba(129, 140, 248, 0.1);
        --accent-glow: rgba(129, 140, 248, 0.08);
        --link: #818cf8;

        --code-bg: #1a1d28;
        --inline-code-bg: #1e2130;

        --task-main: #818cf8;
        --task-plan: #a78bfa;
        --task-grouping: #22d3ee;
        --task-default: #6b7394;
        --tool-name: #a78bfa;
        --danger: #f87171;

        --badge-model-bg: rgba(129, 140, 248, 0.12);   --badge-model-fg: #a5b4fc;
        --badge-tokens-bg: rgba(52, 211, 153, 0.12);   --badge-tokens-fg: #6ee7b7;
        --badge-duration-bg: rgba(251, 191, 36, 0.12); --badge-duration-fg: #fcd34d;
        --badge-error-bg: rgba(248, 113, 113, 0.12);   --badge-error-fg: #fca5a5;
        --badge-neutral-bg: #1e2130;
        --badge-neutral-fg: #9ba3c2;

        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.2);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    }
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    padding-bottom: 4rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

code, pre {
    font-family: var(--mono);
}

/* ── Navigation ── */
nav.breadcrumb {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0 1.5rem;
    height: 52px;
    display: flex;
    align-items: center;
    font-size: 0.875rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
}

@supports (backdrop-filter: blur(12px)) and (background: color-mix(in srgb, red 50%, blue)) {
    nav.breadcrumb {
        background: color-mix(in srgb, var(--surface) 85%, transparent);
    }
}

nav.breadcrumb .nav-brand {
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: -0.02em;
    color: var(--text-strong);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color var(--transition);
}
nav.breadcrumb .nav-brand:hover { color: var(--accent); }

nav.breadcrumb .nav-brand .brand-icon {
    width: 22px;
    height: 22px;
    border-radius: 5px;
    display: inline-block;
    flex-shrink: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 64 64'%3E%3Cdefs%3E%3CclipPath id='a'%3E%3Crect width='64' height='64' rx='16'/%3E%3C/clipPath%3E%3C/defs%3E%3Cg clip-path='url(%23a)'%3E%3Crect width='64' height='64' rx='16' fill='%232BDE5E'/%3E%3Cpath fill-rule='evenodd' fill='%23000' d='M16.01 24.65c-1.81 1.4-3.41 3.05-4.72 4.91-.09.12-.3.02-.24-.12 1.32-2.68 2.96-5.07 4.84-7.12V14.09c0-.8.65-1.46 1.46-1.46h29.3c.8 0 1.46.65 1.46 1.46v10.66c-4.5-3.46-10.16-5.33-16.1-5.33-5.9 0-11.51 1.84-15.99 5.24Zm15.98 12.24c3.15 0 5.7-2.56 5.7-5.71 0-.59-.09-1.17-.27-1.73-.46.98-1.44 1.6-2.52 1.6-1.54 0-2.78-1.25-2.78-2.79 0-1.08.62-2.06 1.59-2.52-.56-.18-1.14-.27-1.72-.27-3.15 0-5.7 2.56-5.7 5.71s2.55 5.71 5.7 5.71Zm15.16 3.83c2.28-2.12 4.25-4.72 5.79-7.69.07-.14-.14-.27-.23-.14-1.35 1.88-2.99 3.53-4.85 4.93l.01-.03c-4.41 3.31-9.9 5.12-15.68 5.16h-.02c-.06 0-.12 0-.18 0-5.84 0-11.42-1.81-15.88-5.16 1.22 7.64 7.26 13.93 15.35 16.46.35.11.72.11 1.07 0 7.03-2.2 12.51-7.23 14.62-13.52Z'/%3E%3C/g%3E%3C/svg%3E") no-repeat center / contain;
}

nav.breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
}
nav.breadcrumb a:hover { color: var(--accent); }

nav.breadcrumb .sep {
    color: var(--text-faint);
    margin: 0 0.5rem;
    font-size: 0.75rem;
}

nav.breadcrumb .current {
    color: var(--text-strong);
    font-weight: 600;
}

/* ── Layout ── */
main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

h2 {
    margin-bottom: 1.25rem;
    color: var(--text-strong);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.03em;
}

h3 {
    margin: 2rem 0 1rem;
    color: var(--text-strong);
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.repository-search {
    display: grid;
    gap: 0.35rem;
    margin-bottom: 1rem;
}
.repository-search label {
    color: var(--text-muted);
    font-size: 0.9rem;
}
.repository-search input {
    width: min(100%, 24rem);
    padding: 0.5rem 0.65rem;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    font: inherit;
}
.repository-search input:focus {
    outline: 2px solid var(--link);
    outline-offset: 1px;
}

/* ── Table ── */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}
.table th {
    background: var(--surface-alt);
    text-align: left;
    padding: 0.75rem 1.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
}
.table td {
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: background var(--transition);
}
.table tr:last-child td { border-bottom: none; }
.table tbody tr {
    transition: background var(--transition);
}
.table tbody tr:hover {
    background: var(--accent-soft);
}
.table a {
    color: var(--link);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
}
.table a:hover { color: var(--accent-hover); }
.table code {
    background: var(--code-bg);
    padding: 0.2em 0.5em;
    border-radius: var(--radius-xs);
    font-size: 0.82em;
    color: var(--text-secondary);
}

/* ── Session Header ── */
.session-header {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.75rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}
.session-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2BDE5E, var(--accent), #7c3aed);
    opacity: 0.8;
}
.session-header h2 {
    margin-bottom: 0.75rem;
    word-break: break-all;
    font-size: 1.25rem;
}
.meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.meta span {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.meta strong {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.meta code {
    background: var(--code-bg);
    padding: 0.15em 0.45em;
    border-radius: var(--radius-xs);
    font-size: 0.82em;
}

/* ── Token Usage Summary ── */
.token-summary {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.75rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}
.token-summary h3 {
    margin: 0 0 1.25rem;
    font-size: 1rem;
}
.token-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.token-item {
    text-align: center;
    padding: 1rem 0.5rem;
    background: var(--surface-alt);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
    transition: transform var(--transition), box-shadow var(--transition);
}
.token-item:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
.token-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1.2;
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
}
.token-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 0.25rem;
    font-weight: 500;
}
.token-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.82rem;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}
.token-table th {
    background: var(--surface-alt);
    text-align: left;
    padding: 0.55rem 0.85rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.token-table td {
    padding: 0.5rem 0.85rem;
    border-bottom: 1px solid var(--border-subtle);
    font-variant-numeric: tabular-nums;
}
.token-table tr:last-child td { border-bottom: none; }
.token-table tbody tr {
    transition: background var(--transition);
}
.token-table tbody tr:hover { background: var(--accent-soft); }

.token-breakdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 600;
    list-style: none;
    padding: 0.25rem 0 0.75rem;
}
.token-breakdown-toggle::-webkit-details-marker { display: none; }
.token-breakdown-toggle::marker { content: none; }
.token-breakdown-toggle .file-count-badge { margin-left: auto; }
.token-breakdown[open] > .token-breakdown-toggle .chevron-sm { transform: rotate(45deg); }
.token-breakdown-body {
    overflow-x: auto;
    padding-top: 0.25rem;
}

/* ── File List ── */
.file-list {
    list-style: none;
    padding: 0;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden;
}
.file-list li {
    padding: 0.6rem 1.25rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-subtle);
    font-family: var(--mono);
    font-size: 0.82rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background var(--transition);
}
.file-list li:last-child { border-bottom: none; }
.file-list li:hover { background: var(--accent-soft); }
.file-list li::before {
    content: "";
    width: 16px;
    height: 16px;
    background: var(--surface-alt);
    border-radius: 3px;
    border: 1px solid var(--border);
    flex-shrink: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%236b7394' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpolyline points='14 2 14 8 20 8'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 10px;
}

/* ── Conversations Section ── */
.conversations { margin-top: 0.75rem; }

/* File Accordion */
.file-accordion {
    background: var(--surface);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: box-shadow var(--transition);
}
.file-accordion:hover {
    box-shadow: var(--shadow-md);
}

.file-accordion-header {
    cursor: pointer;
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
    color: var(--text-strong);
    user-select: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: background var(--transition);
    list-style: none;
}
.file-accordion-header::-webkit-details-marker { display: none; }
.file-accordion-header::marker { display: none; content: ""; }
.file-accordion-header:hover { background: var(--accent-soft); }

/* Chevron icon */
.chevron {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    background: var(--surface-alt);
    border: 1px solid var(--border-subtle);
    flex-shrink: 0;
    transition: transform var(--transition), background var(--transition);
}
.chevron::after {
    content: "";
    width: 6px;
    height: 6px;
    border-right: 1.5px solid var(--text-muted);
    border-bottom: 1.5px solid var(--text-muted);
    transform: rotate(-45deg);
    margin-top: -1px;
    transition: transform var(--transition);
}
.file-accordion[open] > .file-accordion-header .chevron::after {
    transform: rotate(45deg);
    margin-top: -2px;
}

.file-path {
    font-weight: 500;
    font-family: var(--mono);
    font-size: 0.84rem;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-strong);
}

.file-count-badge {
    background: var(--badge-neutral-bg);
    color: var(--badge-neutral-fg);
    padding: 0.2em 0.7em;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 500;
    white-space: nowrap;
    flex-shrink: 0;
}

.file-accordion[open] > .file-accordion-header {
    border-bottom: 1px solid var(--border);
}

.file-accordion-body {
    padding: 1rem 1.25rem 1.25rem;
}

.section-accordion {
    margin-top: 1.25rem;
}
.section-title {
    flex: 1;
    font-weight: 600;
}
.section-accordion .file-list,
.section-accordion .conversations {
    margin: 0;
}

/* Task Group */
.task-group { margin-bottom: 1.25rem; }
.task-group:last-child { margin-bottom: 0; }

.task-type-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    letter-spacing: 0.06em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.task-type-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: 0 0 0 2px var(--surface), 0 0 0 3px currentColor;
}
.task-main .task-type-dot { background: var(--task-main); color: var(--task-main); }
.task-plan .task-type-dot { background: var(--task-plan); color: var(--task-plan); }
.task-memory .task-type-dot { background: var(--task-memory); color: var(--task-memory); }
.task-relocation .task-type-dot { background: var(--task-relocation); color: var(--task-relocation); }
.task-grouping .task-type-dot { background: var(--task-grouping); color: var(--task-grouping); }
.task-default .task-type-dot { background: var(--task-default); color: var(--task-default); }

/* Card */
.card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 0.85rem;
    overflow: hidden;
    transition: box-shadow var(--transition), border-color var(--transition);
}
.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border);
    border-color: color-mix(in srgb, var(--border) 50%, var(--accent) 15%);
}
.task-main .card { border-left: 3px solid var(--task-main); }
.task-plan .card { border-left: 3px solid var(--task-plan); }
.task-memory .card { border-left: 3px solid var(--task-memory); }
.task-relocation .card { border-left: 3px solid var(--task-relocation); }
.task-grouping .card { border-left: 3px solid var(--task-grouping); }

.card-header {
    background: var(--surface-alt);
    padding: 0.7rem 1rem;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-subtle);
}

.request-label {
    font-weight: 600;
    color: var(--text-strong);
    font-size: 0.82rem;
}

/* Badges */
.badge {
    padding: 0.2em 0.6em;
    border-radius: 20px;
    font-size: 0.7em;
    font-weight: 500;
    white-space: nowrap;
    letter-spacing: 0.01em;
}
.badge-model { background: var(--badge-model-bg); color: var(--badge-model-fg); }
.badge-tokens { background: var(--badge-tokens-bg); color: var(--badge-tokens-fg); }
.badge-duration { background: var(--badge-duration-bg); color: var(--badge-duration-fg); }
.badge-error { background: var(--badge-error-bg); color: var(--badge-error-fg); }

/* Response Content */
.card-body { padding: 0; }
.response-content {
    background: var(--response-bg);
    border-top: none;
}
.response-text {
    padding: 1rem 1.25rem;
    font-size: 0.85rem;
    line-height: 1.75;
    color: var(--text-strong);
    max-height: 450px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

/* Scrollbar styling */
.response-text::-webkit-scrollbar { width: 6px; }
.response-text::-webkit-scrollbar-track { background: transparent; }
.response-text::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}
.response-text::-webkit-scrollbar-thumb:hover {
    background: var(--text-faint);
}

/* Markdown-rendered elements */
.response-text .code-block {
    background: var(--surface-inset);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    margin: 0.6rem 0;
    font-size: 0.8rem;
    overflow-x: auto;
    white-space: pre;
    line-height: 1.6;
}
.response-text .code-block code {
    background: none;
    padding: 0;
    font-size: inherit;
}
.response-text .inline-code {
    background: var(--inline-code-bg);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-xs);
    font-size: 0.86em;
    color: var(--accent);
}
.response-text .md-h1 { font-size: 1.15em; font-weight: 700; margin: 0.75em 0 0.35em; color: var(--text-strong); letter-spacing: -0.02em; }
.response-text .md-h2 { font-size: 1.05em; font-weight: 600; margin: 0.6em 0 0.3em; color: var(--text-strong); letter-spacing: -0.01em; }
.response-text .md-h3 { font-size: 0.95em; font-weight: 600; margin: 0.5em 0 0.25em; color: var(--text-strong); }
.response-text .md-li { padding-left: 1.2em; text-indent: -0.9em; margin: 0.2em 0; }

/* ── Tool Calls Section ── */
.tool-calls-section {
    background: var(--surface-inset);
    border-top: 1px solid var(--border);
    padding: 0.85rem 1rem;
}

.tool-calls-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    margin-bottom: 0.6rem;
}

.tool-call-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    overflow: hidden;
    transition: border-color var(--transition);
}
.tool-call-item:last-child { margin-bottom: 0; }
.tool-call-item:hover {
    border-color: var(--border);
    border-color: color-mix(in srgb, var(--border) 50%, var(--tool-name) 20%);
}

.tool-call-error {
    border-left: 3px solid var(--danger);
}

.tool-call-header {
    padding: 0.55rem 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.82rem;
    flex-wrap: wrap;
}

.tool-icon {
    color: var(--text-faint);
    font-size: 0.85em;
}

.tool-name {
    color: var(--tool-name);
    font-family: var(--mono);
    font-size: 0.82em;
    font-weight: 500;
}

/* Tool Detail Toggle */
.tool-detail {
    border-top: 1px solid var(--border-subtle);
}
.tool-detail summary { list-style: none; }
.tool-detail summary::-webkit-details-marker { display: none; }
.tool-detail summary::marker { display: none; content: ""; }

.tool-detail-toggle {
    cursor: pointer;
    padding: 0.45rem 0.85rem;
    font-size: 0.76rem;
    color: var(--link);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    user-select: none;
    transition: background var(--transition);
    font-weight: 500;
}
.tool-detail-toggle:hover { background: var(--accent-soft); }

/* Small chevron for tool details */
.chevron-sm {
    display: inline-block;
    width: 5px;
    height: 5px;
    border-right: 1.5px solid var(--link);
    border-bottom: 1.5px solid var(--link);
    transform: rotate(-45deg);
    transition: transform var(--transition);
    flex-shrink: 0;
}
.tool-detail[open] > .tool-detail-toggle .chevron-sm {
    transform: rotate(45deg);
}

.tool-detail-body {
    padding: 0 0.85rem 0.75rem;
    animation: slideDown 0.2s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Error detail (expandable) */
.error-detail {
    border-top: 1px solid var(--danger);
    background: color-mix(in srgb, var(--danger) 5%, transparent);
}
.error-detail summary { list-style: none; }
.error-detail summary::-webkit-details-marker { display: none; }
.error-detail summary::marker { display: none; content: ""; }
.error-detail-toggle {
    cursor: pointer;
    padding: 0.45rem 0.85rem;
    font-size: 0.76rem;
    color: var(--danger);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    user-select: none;
    transition: background var(--transition);
    font-weight: 500;
}
.error-detail-toggle:hover { background: color-mix(in srgb, var(--danger) 10%, transparent); }
.error-detail[open] > .error-detail-toggle .chevron-sm {
    transform: rotate(45deg);
}
.error-detail-toggle .chevron-sm {
    border-right-color: var(--danger);
    border-bottom-color: var(--danger);
}
.error-detail-body {
    padding: 0 0.85rem 0.75rem;
    animation: slideDown 0.2s ease;
}
.error-content {
    font-size: 0.78rem;
    white-space: pre-wrap;
    word-break: break-all;
    color: var(--danger);
    margin: 0;
    padding: 0.5rem;
    background: color-mix(in srgb, var(--danger) 4%, var(--surface));
    border-radius: var(--radius);
    border: 1px solid color-mix(in srgb, var(--danger) 20%, transparent);
}

.tool-section { margin-top: 0.5rem; }

.tool-section-label {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-faint);
    letter-spacing: 0.05em;
    margin-bottom: 0.3rem;
}

.tool-section pre {
    background: var(--surface-inset);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 0.65rem 0.85rem;
    font-size: 0.76rem;
    max-height: 220px;
    overflow-y: auto;
    margin: 0;
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.55;
}

p {
    color: var(--text-muted);
    padding: 1.5rem 0;
    font-size: 0.9rem;
}

/* ── Empty State ── */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}
.empty-state-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}
.empty-state-text {
    font-size: 0.95rem;
}

/* ── Review Comments Section ── */
.comments-section {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.75rem;
    margin-top: 1.25rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}
.comments-section h3 {
    margin: 0 0 1rem;
    font-size: 1rem;
}

.comment-filter-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.65rem;
}
.category-filters {
    margin-bottom: 1.25rem;
}
.comment-filter-label {
    min-width: 4.75rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 600;
}
.comment-filter-chip {
    appearance: none;
    border: 1px solid transparent;
    border-radius: 20px;
    padding: 0.3em 0.75em;
    font: inherit;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    line-height: 1.35;
    cursor: pointer;
    transition: opacity var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.comment-filter-chip:not(.is-active) { opacity: 0.72; }
.comment-filter-chip:hover,
.comment-filter-chip.is-active { opacity: 1; }
.comment-filter-chip.is-active {
    border-color: transparent;
    box-shadow: 0 0 0 2px currentColor;
}
.comment-filter-chip:focus-visible {
    outline: 2px solid var(--link);
    outline-offset: 2px;
}
.filter-all { background: var(--badge-neutral-bg); color: var(--badge-neutral-fg); }
.severity-badge {
    padding: 0.3em 0.75em;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}
.severity-critical { background: #fef2f2; color: #dc2626; }
.severity-high { background: #fff7ed; color: #ea580c; }
.severity-medium { background: #fefce8; color: #a16207; }
.severity-low { background: var(--badge-neutral-bg); color: var(--badge-neutral-fg); }

@media (prefers-color-scheme: dark) {
    .severity-critical { background: rgba(220, 38, 38, 0.12); color: #fca5a5; }
    .severity-high { background: rgba(234, 88, 12, 0.12); color: #fdba74; }
    .severity-medium { background: rgba(251, 191, 36, 0.12); color: #fcd34d; }
    .severity-low { background: var(--badge-neutral-bg); color: var(--badge-neutral-fg); }
}

.comment-groups { margin-top: 0.5rem; }

.comment-file-group {
    background: var(--surface-alt);
    border-radius: var(--radius-sm);
    margin-bottom: 0.75rem;
    border: 1px solid var(--border-subtle);
    overflow: hidden;
}
.comment-file-header {
    cursor: pointer;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    color: var(--text-strong);
    user-select: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: background var(--transition);
    list-style: none;
}
.comment-file-header::-webkit-details-marker { display: none; }
.comment-file-header::marker { content: none; }
.comment-file-header:hover { background: var(--accent-soft); }
.comment-file-group[open] > .comment-file-header {
    border-bottom: 1px solid var(--border-subtle);
}
.comment-file-group[open] > .comment-file-header .chevron::after {
    transform: rotate(45deg);
    margin-top: -2px;
}

.comment-file-body {
    padding: 0.75rem 1rem;
}

.comment-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: box-shadow var(--transition);
}
.comment-card:last-child { margin-bottom: 0; }
.comment-card:hover { box-shadow: var(--shadow-md); }

.comment-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.6rem;
    flex-wrap: wrap;
}

.comment-badge {
    padding: 0.15em 0.55em;
    border-radius: 20px;
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.cat-bug { background: #fef2f2; color: #dc2626; }
.cat-security { background: #fdf2f8; color: #be185d; }
.cat-performance { background: #fff7ed; color: #ea580c; }
.cat-maintainability { background: #eff6ff; color: #2563eb; }
.cat-test { background: #f0fdf4; color: #15803d; }
.cat-style { background: #f5f3ff; color: #7c3aed; }
.cat-documentation { background: #ecfeff; color: #0e7490; }
.cat-other { background: var(--badge-neutral-bg); color: var(--badge-neutral-fg); }
.cat-default { background: var(--badge-neutral-bg); color: var(--badge-neutral-fg); }
.severity-default { background: var(--badge-neutral-bg); color: var(--badge-neutral-fg); }

@media (prefers-color-scheme: dark) {
    .cat-bug { background: rgba(220, 38, 38, 0.12); color: #fca5a5; }
    .cat-security { background: rgba(190, 24, 93, 0.12); color: #f9a8d4; }
    .cat-performance { background: rgba(234, 88, 12, 0.12); color: #fdba74; }
    .cat-maintainability { background: rgba(37, 99, 235, 0.12); color: #93c5fd; }
    .cat-test { background: rgba(21, 128, 61, 0.12); color: #86efac; }
    .cat-style { background: rgba(124, 58, 237, 0.12); color: #c4b5fd; }
    .cat-documentation { background: rgba(14, 116, 144, 0.12); color: #67e8f9; }
    .cat-other { background: var(--badge-neutral-bg); color: var(--badge-neutral-fg); }
    .cat-default { background: var(--badge-neutral-bg); color: var(--badge-neutral-fg); }
}

.comment-filter-empty {
    margin: 1.25rem 0 0;
    color: var(--text-muted);
    text-align: center;
    font-size: 0.85rem;
}

.comment-lines {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    background: var(--code-bg);
    padding: 0.15em 0.5em;
    border-radius: var(--radius-xs);
}

.comment-content {
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--text-strong);
    white-space: pre-wrap;
    word-break: break-word;
}

.comment-code-diff {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    margin-top: 0.85rem;
}

.code-panel {
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}
.code-panel-label {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.4rem 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
}
.code-panel pre {
    margin: 0;
    padding: 0.65rem 0.75rem;
    font-size: 0.76rem;
    line-height: 1.55;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}
.code-panel code {
    font-size: inherit;
    background: none;
}

.code-existing .code-panel-label {
    background: #fef2f2;
    color: #dc2626;
}
.code-existing pre {
    background: #fef8f8;
}
.code-suggestion .code-panel-label {
    background: #ecfdf5;
    color: #065f46;
}
.code-suggestion pre {
    background: #f8fdfb;
}

@media (prefers-color-scheme: dark) {
    .code-existing .code-panel-label { background: rgba(220, 38, 38, 0.12); color: #fca5a5; }
    .code-existing pre { background: rgba(220, 38, 38, 0.05); }
    .code-suggestion .code-panel-label { background: rgba(52, 211, 153, 0.12); color: #6ee7b7; }
    .code-suggestion pre { background: rgba(52, 211, 153, 0.05); }
}

/* ── Responsive ── */
@media (max-width: 768px) {
    main { padding: 0 1rem; margin: 1.25rem auto; }
    nav.breadcrumb { padding: 0 1rem; }
    .session-header { padding: 1.25rem; }
    .token-stats { grid-template-columns: repeat(2, 1fr); }
    .meta { gap: 0.5rem 1rem; font-size: 0.8rem; }
    .table th, .table td { padding: 0.6rem 0.75rem; font-size: 0.82rem; }
}

/* ── Accessibility: reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}