/*
 * China Industrial Software Survey — design tokens
 *
 * Semantic lanes (non-overlapping):
 *   Lane T  --color-taxonomy-rd/mfg/biz/ops              soft cyan / orange / magenta — ONLY L1/L2 category viz
 *   Lane P  --color-semantic-pass/forbidden/open         strong RGB primaries — pass / gap / open-source ONLY
 *   Lane B  --color-brand* / --color-accent* (alias)      site chrome: nav, links, CTAs, timeline rail (teal)
 *   Lane B′ --color-origin-domestic/open_source          domestic → semantic-pass green; OSS → semantic-open blue
 *   Lane C  --color-chart-rd/mfg/biz/ops (→ taxonomy)     legacy aliases for charts.js categoryL1Color()
 *   Lane D  --color-narrative-*                         timeline before/achieve/still panels (still → semantic red)
 *   Lane E  --color-success/warning/danger/info         aliases → semantic primaries where applicable
 *   Lane F  --color-evidence-*                         source-quality badges (indigo/violet/slate)
 *   Lane G  --color-loc-*                               localization depth (indigo/violet, not taxonomy)
 *   Lane H  --color-chart-1..8                          non-taxonomy chart palette (compare radar, etc.)
 *
 *   --color-bg-* / --color-border-* / --color-text-*    neutral surfaces & typography
 */

:root {
    /* Background */
    --color-bg-base: #f8fafc;
    --color-bg-elevated: #ffffff;
    --color-bg-surface: #f1f5f9;
    --color-bg-muted: #f8fafc;
    --color-bg-accent-subtle: #f0fdfa;
    --color-bg-warning-subtle: #fffbeb;
    --color-bg-danger-subtle: #fff1f2;

    /* Border */
    --color-border-subtle: #f1f5f9;
    --color-border-default: #e2e8f0;
    --color-border-emphasis: #cbd5e1;
    --color-border-strong: #94a3b8;
    --color-border-accent: #5eead4;
    --color-border-accent-muted: #99f6e4;
    --color-border-warning: #fde68a;
    --color-border-danger: #fecaca;

    /* Text */
    --color-text-primary: #0f172a;
    --color-text-secondary: #475569;
    --color-text-muted: #64748b;
    --color-text-subtle: #94a3b8;
    --color-text-inverse: #ffffff;

    /* Lane A: brand — site chrome (teal/cyan; NOT taxonomy triad) */
    --color-brand: #0d9488;
    --color-brand-hover: #0f766e;
    --color-brand-light: #14b8a6;
    --color-brand-muted: #5eead4;
    --color-brand-subtle: #ccfbf1;
    --color-brand-fg: #115e59;
    --color-brand-fg-muted: #0f766e;

    --color-accent: var(--color-brand);
    --color-accent-hover: var(--color-brand-hover);
    --color-accent-light: var(--color-brand-light);
    --color-accent-muted: var(--color-brand-muted);
    --color-accent-subtle: var(--color-brand-subtle);
    --color-accent-fg: var(--color-brand-fg);
    --color-accent-fg-muted: var(--color-brand-fg-muted);

    /* Lane T: taxonomy — soft categorical hues (NOT semantic primaries) */
    --color-taxonomy-rd: #5b9ea8;
    --color-taxonomy-rd-muted: #d4e8ec;
    --color-taxonomy-mfg: #c4955a;
    --color-taxonomy-mfg-muted: #f0e4d4;
    --color-taxonomy-biz: #a67fa8;
    --color-taxonomy-biz-muted: #eadce8;
    --color-taxonomy-ops: #64748b;
    --color-taxonomy-ops-muted: #e2e8f0;

    /* Lane P: semantic primaries — fixed meaning site-wide */
    --color-semantic-pass: #16a34a;
    --color-semantic-pass-muted: #15803d;
    --color-semantic-pass-bg: #dcfce7;
    --color-semantic-pass-border: #86efac;
    --color-semantic-forbidden: #dc2626;
    --color-semantic-forbidden-muted: #b91c1c;
    --color-semantic-forbidden-bg: #fee2e2;
    --color-semantic-forbidden-border: #fca5a5;
    --color-semantic-open: #2563eb;
    --color-semantic-open-muted: #1d4ed8;
    --color-semantic-open-bg: #dbeafe;
    --color-semantic-open-border: #93c5fd;

    /* Lane C: legacy chart aliases → taxonomy */
    --color-chart-rd: var(--color-taxonomy-rd);
    --color-chart-mfg: var(--color-taxonomy-mfg);
    --color-chart-biz: var(--color-taxonomy-biz);
    --color-chart-ops: var(--color-taxonomy-ops);

    /* Lane E: status aliases → semantic primaries */
    --color-success: var(--color-semantic-pass);
    --color-success-light: #22c55e;
    --color-success-bg: var(--color-semantic-pass-bg);
    --color-success-border: var(--color-semantic-pass-border);
    --color-success-fg: var(--color-semantic-pass-muted);

    --color-warning: #d97706;
    --color-warning-bg: var(--color-bg-warning-subtle);
    --color-warning-border: var(--color-border-warning);
    --color-warning-fg: #92400e;
    --color-warning-fg-muted: #b45309;

    --color-danger: var(--color-semantic-forbidden);
    --color-danger-bg: var(--color-semantic-forbidden-bg);
    --color-danger-border: var(--color-semantic-forbidden-border);
    --color-danger-fg: var(--color-semantic-forbidden-muted);

    --color-info: #6366f1;
    --color-info-bg: #eef2ff;
    --color-info-border: #c7d2fe;
    --color-info-fg: #4338ca;

    /* Policy Gantt — cyan-teal / amber / slate (NOT taxonomy triad) */
    --color-policy-bar-track: #e2e8f0;
    --color-policy-bar-track-border: #cbd5e1;
    --color-policy-bar-active: #0d9488;
    --color-policy-bar-active-end: #14b8a6;
    --color-policy-bar-active-border: #0f766e;
    --color-policy-bar-nearing: #d97706;
    --color-policy-bar-nearing-end: #b45309;
    --color-policy-bar-nearing-border: #f59e0b;
    --color-policy-bar-past: #94a3b8;
    --color-policy-bar-past-border: #64748b;
    --color-policy-bar-ongoing: #0891b2;
    --color-policy-bar-ongoing-ring: #67e8f9;

    /* Lane G: non-taxonomy chart palette (compare radar, misc series) */
    --color-chart-1: var(--color-brand);
    --color-chart-2: #6366f1;
    --color-chart-3: #d97706;
    --color-chart-4: #64748b;
    --color-chart-5: #8b5cf6;
    --color-chart-6: #78716c;
    --color-chart-7: #0ea5e9;
    --color-chart-8: #a8a29e;

    /* Lane D: timeline narrative panels (before slate / achieve violet / still semantic red) */
    --color-narrative-before-fg: #475569;
    --color-narrative-before-border: #94a3b8;
    --color-narrative-before-bg: #f8fafc;
    --color-narrative-achieve-fg: #6d28d9;
    --color-narrative-achieve-border: #a78bfa;
    --color-narrative-achieve-bg: #f5f3ff;
    --color-narrative-still-fg: var(--color-semantic-forbidden-muted);
    --color-narrative-still-border: var(--color-semantic-forbidden);
    --color-narrative-still-bg: #fff1f2;

    /* Origin badges — domestic = semantic pass; OSS = semantic open */
    --color-origin-domestic: var(--color-semantic-pass);
    --color-origin-intl: #64748b;
    --color-origin-jv: #6366f1;
    --color-origin-open_source: var(--color-semantic-open);
    --color-origin-oss: var(--color-origin-open_source);

    /* Evidence level badges — indigo/violet/slate palette */
    --color-evidence-audited-bg: var(--color-info-bg);
    --color-evidence-audited-fg: var(--color-info-fg);
    --color-evidence-case-bg: #e0e7ff;
    --color-evidence-case-fg: #3730a3;
    --color-evidence-vendor-bg: #f3e8ff;
    --color-evidence-vendor-fg: #6b21a8;
    --color-evidence-media-bg: var(--color-bg-surface);
    --color-evidence-media-fg: var(--color-text-secondary);

    /* Lane F: localization depth (indigo/violet — NOT taxonomy triad) */
    --color-loc-none-bg: var(--color-bg-surface);
    --color-loc-none-fg: var(--color-text-muted);
    --color-loc-pilot-bg: #eef2ff;
    --color-loc-pilot-fg: #4338ca;
    --color-loc-partial-bg: #e0e7ff;
    --color-loc-partial-fg: #3730a3;
    --color-loc-core-bg: #ede9fe;
    --color-loc-core-fg: #5b21b6;

    /* Chart chrome */
    --color-grid: rgba(100, 116, 139, 0.12);
    --color-chart-axis: var(--color-text-secondary);
    --color-chart-legend: #334155;
    --color-chart-split-a: rgba(248, 250, 252, 0.3);
    --color-chart-split-b: rgba(241, 245, 249, 0.3);
    --color-chart-split-line: rgba(148, 163, 184, 0.15);
    --color-overlay: rgba(15, 23, 42, 0.4);
    --color-shadow-sm: rgba(0, 0, 0, 0.05);
    --color-shadow-md: rgba(15, 23, 42, 0.08);
    --color-shadow-lg: rgba(0, 0, 0, 0.1);
    --color-highlight-ring: rgba(13, 148, 136, 0.22);
}

/* ── Dark mode — override only the neutral & chart-chrome tokens.
   Semantic primaries (pass/forbidden/open) and taxonomy hues keep their
   fixed meaning site-wide and stay readable on a dark surface. ── */
html.dark {
    color-scheme: dark;

    /* Backgrounds */
    --color-bg-base: #0b1220;
    --color-bg-elevated: #131d30;
    --color-bg-surface: #0f1a2e;
    --color-bg-muted: #0f1a2e;
    --color-bg-accent-subtle: rgba(13, 148, 136, 0.10);
    --color-bg-warning-subtle: rgba(217, 119, 6, 0.10);
    --color-bg-danger-subtle: rgba(220, 38, 38, 0.10);

    /* Borders */
    --color-border-subtle: #1e293b;
    --color-border-default: #29394f;
    --color-border-emphasis: #475569;
    --color-border-strong: #64748b;
    --color-border-accent: #0f766e;
    --color-border-accent-muted: #14b8a6;
    --color-border-warning: #b45309;
    --color-border-danger: #dc2626;

    /* Text */
    --color-text-primary: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    --color-text-subtle: #64748b;
    --color-text-inverse: #0f172a;

    /* Chart chrome — re-read by ECharts on re-render after a theme switch */
    --color-chart-axis: var(--color-text-secondary);
    --color-chart-legend: #cbd5e1;
    --color-chart-split-a: rgba(30, 41, 59, 0.5);
    --color-chart-split-b: rgba(15, 23, 42, 0.5);
    --color-chart-split-line: rgba(148, 163, 184, 0.20);
    --color-grid: rgba(148, 163, 184, 0.16);

    /* Policy Gantt track fades against dark surface */
    --color-policy-bar-track: #1e293b;
    --color-policy-bar-track-border: #334155;

    /* Narrative panel backgrounds lifted off the dark base */
    --color-narrative-before-bg: #0f1a2e;
    --color-narrative-achieve-bg: rgba(109, 40, 217, 0.14);
    --color-narrative-still-bg: rgba(220, 38, 38, 0.14);

    /* Shadows flatten (no lift against dark) */
    --color-shadow-sm: rgba(0, 0, 0, 0.30);
    --color-shadow-md: rgba(0, 0, 0, 0.38);
    --color-shadow-lg: rgba(0, 0, 0, 0.45);
    --color-overlay: rgba(0, 0, 0, 0.6);
}

/* Nav square toggle buttons (lang + theme) — light + dark.
   Uses semantic tokens so both modes are covered without a Tailwind rebuild. */
.nav-square-btn {
    width: 2.25rem;
    height: 2.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.5rem;
    border: 1px solid var(--color-border-default);
    background: var(--color-bg-elevated);
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
    cursor: pointer;
    flex: 0 0 auto;
}
.nav-square-btn:hover {
    background: var(--color-bg-surface);
    color: var(--color-text-primary);
    border-color: var(--color-border-emphasis);
}
.nav-square-btn:focus-visible {
    outline: 2px solid var(--color-border-strong);
    outline-offset: 2px;
}

/* Sun/moon theme-toggle icon animation — dark shows sun, light shows moon */
#theme-toggle .sun-icon,
#theme-toggle .moon-icon { transition: opacity 0.25s, transform 0.3s; }
html.dark #theme-toggle .sun-icon  { opacity: 1; transform: rotate(0deg) scale(1); }
html.dark #theme-toggle .moon-icon { opacity: 0; transform: rotate(-90deg) scale(0.6); }
#theme-toggle .sun-icon  { opacity: 0; transform: rotate(90deg) scale(0.6); }
#theme-toggle .moon-icon { opacity: 1; transform: rotate(0deg) scale(1); }

/* ── Token utilities (HTML / JS class hooks) ── */
.text-link {
    color: var(--color-accent-fg-muted);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.text-link:hover { color: var(--color-accent-hover); }

.text-accent { color: var(--color-accent-fg-muted); }
.text-semantic-pass { color: var(--color-semantic-pass); }
.text-semantic-forbidden { color: var(--color-semantic-forbidden); }
.text-semantic-open { color: var(--color-semantic-open); }
.text-warning { color: var(--color-warning-fg-muted); }

.bg-accent {
    background-color: var(--color-accent);
    color: var(--color-text-inverse);
}
.bg-accent:hover { background-color: var(--color-accent-hover); }

.btn-accent-outline {
    border: 1px solid var(--color-border-accent-muted);
    color: var(--color-accent-fg);
    background-color: var(--color-bg-accent-subtle);
}
.btn-accent-outline:hover { background-color: var(--color-accent-subtle); }

.panel-accent {
    border: 1px solid var(--color-border-accent-muted);
    background-color: color-mix(in srgb, var(--color-bg-accent-subtle) 50%, transparent);
}

.panel-warning {
    border: 1px solid var(--color-border-warning);
    background-color: color-mix(in srgb, var(--color-bg-warning-subtle) 60%, transparent);
}
.panel-warning .panel-title { color: var(--color-warning-fg-muted); }

.banner-warning {
    color: var(--color-warning-fg);
    background-color: var(--color-warning-bg);
    border-bottom: 1px solid var(--color-border-warning);
}

.hover-danger:hover { color: var(--color-danger); }

/* ── Base ── */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-bg-base);
    color: var(--color-text-primary);
    overflow-x: hidden;
}

.site-nav { box-shadow: none; }

/* ── Dark mode — map the pre-built Tailwind light-mode utility classes
   (used in index.html) onto dark surfaces, since the compiled CSS ships no
   `.dark` variants. Mirrors the wfoe-china approach. ── */
html.dark .bg-white { background-color: var(--color-bg-elevated) !important; }
html.dark .bg-white\/85 { background-color: rgba(19, 29, 48, 0.85) !important; }
html.dark .bg-white\/95 { background-color: rgba(19, 29, 48, 0.95) !important; }
html.dark .bg-slate-50 { background-color: var(--color-bg-surface) !important; }
html.dark .bg-slate-50\/60 { background-color: rgba(15, 26, 46, 0.6) !important; }

html.dark .border-slate-100 { border-color: var(--color-border-subtle) !important; }
html.dark .border-slate-100\/90 { border-color: rgba(30, 41, 59, 0.9) !important; }
html.dark .border-slate-200 { border-color: var(--color-border-default) !important; }
html.dark .border-slate-200\/90 { border-color: rgba(41, 57, 79, 0.9) !important; }

html.dark .text-slate-900 { color: var(--color-text-primary) !important; }
html.dark .text-slate-800 { color: var(--color-text-primary) !important; }
html.dark .text-slate-700 { color: var(--color-text-secondary) !important; }
html.dark .text-slate-600 { color: var(--color-text-muted) !important; }
html.dark .text-slate-500 { color: var(--color-text-muted) !important; }
html.dark .text-slate-400 { color: var(--color-text-subtle) !important; }

html.dark .hover\:bg-slate-50:hover { background-color: var(--color-bg-surface) !important; }
html.dark .hover\:text-slate-900:hover { color: var(--color-text-primary) !important; }
html.dark .hover\:text-slate-800:hover { color: var(--color-text-primary) !important; }

.chart-box {
    position: relative;
    width: 100%;
    height: 320px;
    min-height: 280px;
}

.chart-box-tall { height: 420px; }
.chart-box-wide { height: 380px; max-width: 100%; }

@media (min-width: 768px) {
    .chart-box { height: 360px; }
    .chart-box-tall { height: 480px; }
}

.kpi-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-default);
    border-radius: 0.75rem;
    padding: 1.25rem 1.5rem;
    box-shadow: 0 1px 3px 0 var(--color-shadow-sm);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.kpi-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-border-emphasis);
    box-shadow: 0 4px 12px -1px var(--color-shadow-md);
}

/* L1/L2 category badges — soft taxonomy hues only */
.badge-rd { background: var(--color-taxonomy-rd); color: var(--color-text-inverse); }
.badge-mfg { background: var(--color-taxonomy-mfg); color: var(--color-text-inverse); }
.badge-biz { background: var(--color-taxonomy-biz); color: var(--color-text-inverse); }
.badge-plat { background: var(--color-taxonomy-ops); color: var(--color-text-inverse); }

.badge-domestic { background: var(--color-origin-domestic); color: var(--color-text-inverse); }
.badge-international { background: var(--color-origin-intl); color: var(--color-text-inverse); }
.badge-jv { background: var(--color-origin-jv); color: var(--color-text-inverse); }
.badge-oss { background: var(--color-origin-oss); color: var(--color-text-inverse); }

.badge-origin {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 500;
    line-height: 1.15;
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    white-space: nowrap;
    vertical-align: middle;
}

.kernels-table th[data-kernel-sort="origin"],
.kernels-table td:nth-child(3) {
    white-space: nowrap;
    width: 1%;
}

.catalog-table th[data-sort="origin"],
.catalog-table td:nth-child(4) {
    white-space: nowrap;
    width: 1%;
}

.badge-confidence-low {
    background: var(--color-warning-bg);
    color: var(--color-warning-fg);
    border: 1px solid var(--color-border-warning);
}

.catalog-table th, .kernels-table th {
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
    transition: background-color 0.15s ease;
}

.catalog-table th:hover, .kernels-table th:hover { background: var(--color-bg-surface); }
.catalog-table tbody tr, .kernels-table tbody tr {
    cursor: pointer;
    transition: background-color 0.15s ease;
}
.catalog-table tbody tr:hover, .kernels-table tbody tr:hover { background: var(--color-bg-muted); }

@keyframes modal-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes modal-scale-in {
    from { transform: scale(0.96); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding: 2rem 1rem;
    overflow-y: auto;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all 0.25s ease;
}

.modal-backdrop:not(.hidden) {
    display: flex;
    background: var(--color-overlay);
    animation: modal-fade-in 0.2s ease-out;
}

.modal-panel {
    background: var(--color-bg-elevated);
    border-radius: 0.75rem;
    max-width: 42rem;
    width: 100%;
    box-shadow: 0 20px 25px -5px var(--color-shadow-lg), 0 10px 10px -5px var(--color-shadow-sm);
    border: 1px solid var(--color-border-default);
    animation: modal-scale-in 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-panel-wide {
    max-width: 56rem;
}

#compare-modal .modal-panel {
    margin-top: 1rem;
}

/* Vertical milestone timeline (#milestone-list) */
.timeline-rail {
    position: relative;
    max-width: 52rem;
    padding-left: 5.25rem;
}

.timeline-rail::before {
    content: '';
    position: absolute;
    left: 4.875rem;
    top: 0.5rem;
    bottom: 0.5rem;
    width: 2px;
    background: linear-gradient(180deg, var(--color-border-emphasis) 0%, var(--color-accent-light) 50%, var(--color-border-emphasis) 100%);
    border-radius: 1px;
}

.timeline-node {
    position: relative;
    padding-bottom: 0.6rem;
}

.timeline-node:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -5.25rem;
    top: 0.15rem;
    width: 5.25rem;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    padding-right: 1.125rem;
}

.timeline-date {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-accent);
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
    margin-bottom: 0.35rem;
    white-space: nowrap;
}

.timeline-dot {
    flex-shrink: 0;
    width: 0.625rem;
    height: 0.625rem;
    border-radius: 50%;
    background: var(--color-accent-light);
    border: 2px solid var(--color-bg-elevated);
    box-shadow: 0 0 0 2px var(--color-accent-muted);
}

.timeline-node-body {
    border: 1px solid var(--color-border-default);
    border-radius: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--color-bg-elevated);
    transition: box-shadow 0.2s, border-color 0.2s;
}

/* Compact clickable summary row — whole row toggles, no separate button */
.timeline-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    cursor: pointer;
    list-style: none;
    user-select: none;
    font-size: 0.8rem;
}

.timeline-row::-webkit-details-marker {
    display: none;
}

.timeline-row-date {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-accent);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.ms-cap-chip {
    padding: 0.05rem 0.45rem;
    border-radius: 0.25rem;
    background: var(--color-accent-muted, #ecfdf5);
    color: var(--color-accent, #047857);
    font-size: 0.68rem;
    font-weight: 600;
    white-space: nowrap;
}

.ms-row-headline {
    flex: 1 1 12rem;
    font-weight: 600;
    color: var(--color-text-primary, #0f172a);
    line-height: 1.35;
}

.ms-row-caret {
    margin-left: auto;
    color: var(--color-text-secondary);
    transition: transform 0.15s ease;
    font-size: 0.75rem;
}

.timeline-node-details[open] .ms-row-caret {
    transform: rotate(90deg);
}

.timeline-node-detailbody {
    margin-top: 0.6rem;
    padding-top: 0.6rem;
    border-top: 1px dashed var(--color-border-default);
}

.timeline-node:hover .timeline-node-body {
    border-color: var(--color-border-emphasis);
    box-shadow: 0 2px 10px var(--color-shadow-sm);
}

.timeline-category-badge {
    padding: 0.125rem 0.5rem;
    border-radius: 0.25rem;
    background: var(--color-bg-surface);
    color: var(--color-text-secondary);
}

.timeline-node-summary {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-accent);
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.timeline-node-summary::-webkit-details-marker {
    display: none;
}

.timeline-node-summary::before {
    content: '▸ ';
    display: inline-block;
    transition: transform 0.15s ease;
}

.timeline-node-details[open] .timeline-node-summary::before {
    transform: rotate(90deg);
}

.timeline-node-details[open] .timeline-node-summary {
    margin-bottom: 0.25rem;
}

.milestone-highlight .timeline-node-body {
    border-color: var(--color-accent-light) !important;
    box-shadow: 0 0 0 3px var(--color-highlight-ring);
}

@media (max-width: 639px) {
    .timeline-rail {
        padding-left: 1.5rem;
        max-width: none;
    }

    .timeline-rail::before {
        left: 0.4375rem;
    }

    .timeline-node {
        padding-bottom: 1.5rem;
    }

    .timeline-marker {
        position: static;
        width: auto;
        flex-direction: row;
        align-items: center;
        gap: 0.5rem;
        padding-right: 0;
        margin-bottom: 0.5rem;
    }

    .timeline-date {
        margin-bottom: 0;
        order: 2;
    }

    .timeline-dot {
        order: 1;
        margin-left: -1.0625rem;
    }
}

.milestone-panel {
    border-radius: 0.375rem;
    padding: 0.625rem 0.875rem;
    background: transparent;
    border: none;
    border-left: 3px solid transparent;
}

.milestone-panel-label {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.milestone-panel-gap {
    border-left-color: var(--color-narrative-before-border);
    background: color-mix(in srgb, var(--color-narrative-before-bg) 85%, transparent);
}

.milestone-panel-gap .milestone-panel-label {
    color: var(--color-narrative-before-fg);
}

.milestone-panel-achieve {
    border-left-color: var(--color-narrative-achieve-border);
    background: color-mix(in srgb, var(--color-narrative-achieve-bg) 70%, transparent);
}

.milestone-panel-achieve .milestone-panel-label {
    color: var(--color-narrative-achieve-fg);
}

.milestone-panel-still {
    border-left-color: var(--color-narrative-still-border);
    background: color-mix(in srgb, var(--color-narrative-still-bg) 70%, transparent);
}

.milestone-panel-still .milestone-panel-label {
    color: var(--color-narrative-still-fg);
}

/* Taxonomy soft-hue legend (#taxonomy sunburst) */
.taxonomy-color-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1.25rem;
    margin-top: 0.75rem;
    padding: 0;
    list-style: none;
    font-size: 0.65rem;
    color: var(--color-text-muted);
}

.taxonomy-color-legend li {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.taxonomy-legend-swatch {
    flex-shrink: 0;
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 0.125rem;
}

.taxonomy-legend-swatch--rd { background: var(--color-taxonomy-rd); }
.taxonomy-legend-swatch--mfg { background: var(--color-taxonomy-mfg); }
.taxonomy-legend-swatch--biz { background: var(--color-taxonomy-biz); }
.taxonomy-legend-swatch--ops { background: var(--color-taxonomy-ops); }

/* Semantic primary legend (pass / gap / open) */
.semantic-color-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1.25rem;
    margin-top: 0.35rem;
    padding: 0;
    list-style: none;
    font-size: 0.65rem;
    color: var(--color-text-muted);
}

.semantic-color-legend li {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.semantic-legend-swatch {
    flex-shrink: 0;
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 0.125rem;
}

.semantic-legend-swatch--pass { background: var(--color-semantic-pass); }
.semantic-legend-swatch--forbidden { background: var(--color-semantic-forbidden); }
.semantic-legend-swatch--open { background: var(--color-semantic-open); }

.metric-chip {
    font-size: 0.7rem;
    padding: 0.2rem 0.55rem;
    border-radius: 9999px;
    background: var(--color-semantic-pass-bg);
    color: var(--color-semantic-pass-muted);
    border: 1px solid var(--color-semantic-pass-border);
}

.badge-evidence-audited { background: var(--color-evidence-audited-bg); color: var(--color-evidence-audited-fg); }
.badge-evidence-case { background: var(--color-evidence-case-bg); color: var(--color-evidence-case-fg); }
.badge-evidence-vendor { background: var(--color-evidence-vendor-bg); color: var(--color-evidence-vendor-fg); }
.badge-evidence-media { background: var(--color-evidence-media-bg); color: var(--color-evidence-media-fg); }

/* Policy subsection — visual break after milestone cards (#timeline) */
.timeline-policies {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border-subtle);
}

@media (min-width: 768px) {
    .timeline-policies {
        margin-top: 3.5rem;
        padding-top: 2.5rem;
    }
}

/* Policy Gantt — horizontal time axis under milestone vertical rail */
.policy-gantt-scroll {
    overflow: auto;
    max-height: max(40rem, 70vh);
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--color-border-default);
    border-radius: 0.75rem;
    background: var(--color-bg-elevated);
}

.policy-gantt-scroll::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
.policy-gantt-scroll::-webkit-scrollbar-track {
    background: var(--color-bg-muted);
}
.policy-gantt-scroll::-webkit-scrollbar-thumb {
    background: var(--color-border-emphasis);
    border-radius: 3px;
}

.policy-gantt {
    --policy-gantt-label-w: minmax(10.5rem, 32%);
    --policy-gantt-track-min: 28rem;
    min-width: min(100%, 52rem);
    padding: 0.75rem 0.875rem 0.5rem;
}

.policy-gantt-header {
    display: grid;
    grid-template-columns: var(--policy-gantt-label-w) 1fr;
    gap: 0.75rem;
    align-items: end;
    margin-bottom: 0.5rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--color-border-subtle);
    /* Keep the time axis visible while the rows scroll vertically. */
    position: sticky;
    top: 0;
    z-index: 6;
    padding-top: 0.75rem;
    margin-top: -0.75rem;
    background: var(--color-bg-elevated);
}

.policy-gantt-axis-col {
    position: relative;
    min-width: var(--policy-gantt-track-min);
}

.policy-gantt-axis {
    position: relative;
    height: 1.25rem;
    border-bottom: 2px solid var(--color-border-emphasis);
}

.policy-gantt-axis::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-border-emphasis) 0%, var(--color-accent-light) 50%, var(--color-border-emphasis) 100%);
    border-radius: 1px;
}

.policy-gantt-axis-tick {
    position: absolute;
    bottom: 0.15rem;
    transform: translateX(-50%);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--color-text-muted);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.policy-gantt-axis-tick::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -0.45rem;
    width: 1px;
    height: 0.35rem;
    background: var(--color-border-emphasis);
    transform: translateX(-50%);
}

.policy-gantt-body {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.policy-gantt-entry {
    display: grid;
    grid-template-columns: var(--policy-gantt-label-w) 1fr;
    gap: 0 0.75rem;
    border-bottom: 1px solid var(--color-border-subtle);
}

.policy-gantt-entry:last-child {
    border-bottom: none;
}

.policy-gantt-row {
    display: contents;
}

.policy-gantt-label {
    grid-column: 1;
    min-width: 0;
    align-self: center;
}

button.policy-gantt-label {
    display: block;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 0.35rem 0.25rem 0.35rem 0;
    cursor: pointer;
    font: inherit;
    color: inherit;
    border-radius: 0.25rem;
}

button.policy-gantt-label:hover .policy-gantt-label-text,
button.policy-gantt-label:focus-visible .policy-gantt-label-text {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

button.policy-gantt-label:focus-visible {
    outline: 2px solid var(--color-accent-muted);
    outline-offset: 1px;
}

.policy-gantt-label-text {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-primary);
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.policy-gantt-label-dates {
    display: block;
    margin-top: 0.15rem;
    font-size: 0.65rem;
    color: var(--color-text-subtle);
    font-variant-numeric: tabular-nums;
}

.policy-type-chip {
    display: inline-block;
    margin-right: 0.35rem;
    padding: 0.02rem 0.4rem;
    border-radius: 0.25rem;
    background: var(--color-bg-surface, #f1f5f9);
    color: var(--color-text-secondary, #475569);
    font-size: 0.62rem;
    font-weight: 600;
    vertical-align: middle;
    white-space: nowrap;
}

.policy-gantt-track {
    grid-column: 2;
    position: relative;
    min-width: var(--policy-gantt-track-min);
    height: 1.375rem;
    margin: 0.35rem 0;
    align-self: center;
    border-radius: 0.25rem;
    background: var(--color-policy-bar-track);
    border: 1px solid var(--color-policy-bar-track-border);
}

.policy-gantt-track-grid {
    position: absolute;
    inset: 0;
    background-image: repeating-linear-gradient(
        90deg,
        transparent,
        transparent calc(20% - 1px),
        var(--color-border-subtle) calc(20% - 1px),
        var(--color-border-subtle) 20%
    );
    opacity: 0.65;
    border-radius: inherit;
    pointer-events: none;
}

.policy-gantt-bar {
    position: absolute;
    top: 0.2rem;
    bottom: 0.2rem;
    min-width: 4px;
    border-radius: 0.2rem;
    cursor: pointer;
    padding: 0;
    font: inherit;
    transition: filter 0.15s, box-shadow 0.15s;
}

.policy-gantt-bar:hover,
.policy-gantt-bar:focus-visible {
    filter: brightness(1.08);
    box-shadow: 0 1px 4px var(--color-shadow-sm);
}

.policy-gantt-bar:focus-visible {
    outline: 2px solid var(--color-accent-light);
    outline-offset: 1px;
}

.policy-gantt-bar--active {
    background: linear-gradient(90deg, var(--color-policy-bar-active) 0%, var(--color-policy-bar-active-end) 100%);
    border: 1px solid var(--color-policy-bar-active-border);
}

.policy-gantt-bar--nearing {
    background: linear-gradient(90deg, var(--color-policy-bar-nearing) 0%, var(--color-policy-bar-nearing-end) 100%);
    border: 1px solid var(--color-policy-bar-nearing-border);
}

.policy-gantt-bar--past {
    background: var(--color-policy-bar-past);
    border: 1px solid var(--color-policy-bar-past-border);
}

.policy-gantt-marker {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 0.625rem;
    height: 0.625rem;
    border-radius: 50%;
    z-index: 1;
    padding: 0;
    font: inherit;
    cursor: pointer;
}

.policy-gantt-marker--ongoing {
    background: var(--color-policy-bar-ongoing);
    border: 2px solid var(--color-bg-elevated);
    box-shadow: 0 0 0 2px var(--color-policy-bar-ongoing-ring);
}

.policy-gantt-marker--ongoing:hover,
.policy-gantt-marker--ongoing:focus-visible {
    filter: brightness(1.1);
    box-shadow: 0 0 0 3px var(--color-policy-bar-ongoing-ring);
}

.policy-gantt-marker--ongoing:focus-visible {
    outline: 2px solid var(--color-info-border);
    outline-offset: 2px;
}

.policy-gantt-marker-stub {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 2.5rem;
    height: 0.25rem;
    margin-left: 0.35rem;
    transform: translateY(-50%);
    border-radius: 0.125rem;
    background: linear-gradient(90deg, var(--color-policy-bar-ongoing) 0%, transparent 100%);
    opacity: 0.7;
    pointer-events: none;
}

.policy-modal-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
}

.policy-modal-metrics dt {
    margin-bottom: 0.15rem;
}

/* ---- Directional detail block (rich policy narrative) ---- */
.policy-detail {
    border-top: 1px solid var(--color-border-subtle);
    padding-top: 0.75rem;
}
.policy-detail-block {
    margin-top: 0.875rem;
}
.policy-detail-block:first-child {
    margin-top: 0;
}
.policy-detail-h {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-secondary);
    margin-bottom: 0.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.policy-init-list {
    list-style: disc;
    padding-left: 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.policy-impl {
    background: var(--color-bg-muted);
    border-left: 3px solid var(--color-accent, var(--color-border-emphasis));
    border-radius: 0.4rem;
    padding: 0.6rem 0.75rem;
}
.policy-impl .policy-detail-h {
    margin-bottom: 0.2rem;
}
.policy-related-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}
.policy-related-chip {
    font-size: 0.72rem;
    line-height: 1.2;
    text-align: left;
    padding: 0.3rem 0.55rem;
    border: 1px solid var(--color-border-default);
    border-radius: 0.4rem;
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    max-width: 100%;
}
.policy-related-chip:hover {
    background: var(--color-bg-muted);
    border-color: var(--color-border-emphasis);
}
.policy-source-list {
    list-style: none;
    padding-left: 0;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}
.policy-source-pub {
    color: var(--color-text-secondary);
    font-size: 0.68rem;
}
.policy-conf {
    font-size: 0.62rem;
    font-weight: 600;
    text-transform: none;
    letter-spacing: 0;
    padding: 0.05rem 0.4rem;
    border-radius: 999px;
}
.policy-conf--high { background: rgba(16,185,129,0.14); color: #047857; }
.policy-conf--medium { background: rgba(245,158,11,0.16); color: #b45309; }
.policy-conf--low { background: rgba(148,163,184,0.2); color: #475569; }

@media (max-width: 639px) {
    .policy-gantt {
        min-width: 36rem;
        --policy-gantt-label-w: 9.5rem;
        --policy-gantt-track-min: 22rem;
    }

}

@media (min-width: 768px) {
    .policy-gantt {
        min-width: 52rem;
    }
}

.vendor-card {
    border: 1px solid var(--color-border-default);
    border-radius: 0.5rem;
    padding: 1rem;
    background: var(--color-bg-elevated);
    transition: border-color 0.15s;
}

.vendor-card:hover { border-color: var(--color-border-strong); }

.compare-slot {
    border: 1.5px dashed var(--color-border-emphasis);
    border-radius: 0.5rem;
    min-height: 3.25rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.2s ease;
}

.compare-slot:hover {
    border-color: var(--color-border-strong);
}

.compare-slot.filled {
    border-style: solid;
    border-width: 1.5px;
    border-color: var(--color-border-accent-muted);
    background: var(--color-bg-accent-subtle);
    color: var(--color-text-primary);
    font-weight: 500;
    box-shadow: 0 1px 2px 0 var(--color-shadow-sm);
}

.compare-add-btn {
    border: 1px solid var(--color-accent);
    border-radius: 9999px;
    padding: 0.125rem 0.625rem;
    font-weight: 500;
    transition: all 0.15s ease;
    background-color: transparent;
    color: var(--color-accent-fg-muted);
    display: inline-block;
    text-align: center;
}

.compare-add-btn:hover {
    background-color: var(--color-accent);
    color: var(--color-text-inverse) !important;
    text-decoration: none !important;
}

.compare-add-btn.added {
    background-color: var(--color-bg-accent-subtle);
    border-color: var(--color-accent);
    color: var(--color-accent-fg) !important;
}

.compare-add-btn.added:hover {
    background-color: var(--color-danger-bg);
    border-color: var(--color-danger);
    color: var(--color-danger) !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.sr-only:focus {
    position: static;
    width: auto;
    height: auto;
    margin: 0;
    clip: auto;
    padding: 0.5rem 1rem;
}

/* Methodology collapsible (default closed) — matches china-housing pattern */
.methodology-details > summary {
    list-style: none;
    cursor: pointer;
    user-select: none;
}
.methodology-details > summary::-webkit-details-marker { display: none; }
.methodology-details > summary::after {
    content: '▸';
    float: right;
    font-size: 0.75rem;
    color: var(--color-text-subtle);
    transition: transform 0.2s;
}
.methodology-details[open] > summary::after { transform: rotate(90deg); }

#methodology .rounded-xl ul {
    list-style: disc;
    padding-left: 1.25rem;
    margin-top: 0.5rem;
}
#methodology .rounded-xl li + li { margin-top: 0.375rem; }
#methodology .rounded-xl p + p { margin-top: 0.5rem; }

@media print {
    .site-nav, #lang-toggle, .no-print { display: none !important; }
    .chart-box { height: 240px; page-break-inside: avoid; }
}

/* Capability Matrix Styles */
.matrix-container {
    max-height: 550px;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
}

/* Custom Scrollbar for Matrix */
.matrix-container::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
.matrix-container::-webkit-scrollbar-track {
    background: var(--color-bg-muted);
}
.matrix-container::-webkit-scrollbar-thumb {
    background: var(--color-border-emphasis);
    border-radius: 3px;
}

.matrix-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.725rem;
}

.matrix-table th, .matrix-table td {
    padding: 0.5rem 0.625rem;
    border: 1px solid var(--color-border-subtle);
    text-align: center;
    vertical-align: middle;
}

.matrix-table thead th {
    position: sticky;
    top: 0;
    background-color: var(--color-bg-surface);
    color: var(--color-text-secondary);
    font-weight: 600;
    z-index: 10;
    box-shadow: inset 0 -1px 0 var(--color-border-default);
}

/* Sticky first column (Product Name) */
.matrix-table th:first-child,
.matrix-table td:first-child {
    position: sticky;
    left: 0;
    background-color: var(--color-bg-elevated);
    z-index: 5;
    border-right: 1.5px solid var(--color-border-default);
    font-weight: 600;
    text-align: left;
    min-width: 150px;
    max-width: 180px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    box-shadow: 2px 0 5px -2px rgba(0, 0, 0, 0.05);
}

.matrix-table thead th:first-child {
    z-index: 15;
    background-color: var(--color-bg-surface);
}

.matrix-table tbody tr:hover td:first-child {
    background-color: var(--color-bg-muted);
}

/* ============================================================
   Reusable sticky-scroll table primitives
   Mirrors .matrix-container pattern; opt-in via .col-sticky /
   .th-sort classes (contract with HTML/JS authored in parallel).
   ============================================================ */

/* 1. Generic scroll container */
.sticky-scroll {
    max-height: 560px;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
}
/* Floor at 40rem so the pane never collapses if 1vh resolves to 0
   (some headless/embedded viewports); otherwise grows with the viewport. */
.sticky-scroll--tall { max-height: max(40rem, 70vh); }

/* Milestone timeline rail inside a scroll pane: breathing room + keep the
   connecting line/markers clear of the scrollbar gutter. */
.milestone-scroll {
    padding: 0.5rem 0.75rem 0.5rem 0;
}
.milestone-scroll .timeline-rail {
    max-width: none;
}

.sticky-scroll::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
.sticky-scroll::-webkit-scrollbar-track {
    background: var(--color-bg-muted);
}
.sticky-scroll::-webkit-scrollbar-thumb {
    background: var(--color-border-emphasis);
    border-radius: 3px;
}

/* 2. Sticky header row */
.sticky-scroll table thead th {
    position: sticky;
    top: 0;
    z-index: 10;
    background-color: var(--color-bg-surface);
    box-shadow: inset 0 -1px 0 var(--color-border-default);
}

/* 3. Opt-in sticky first column */
.sticky-scroll table th.col-sticky,
.sticky-scroll table td.col-sticky {
    position: sticky;
    left: 0;
    z-index: 5;
    background-color: var(--color-bg-elevated);
    box-shadow: 2px 0 5px -2px rgba(0, 0, 0, 0.05);
}
.sticky-scroll table thead th.col-sticky {
    z-index: 15;
    background-color: var(--color-bg-surface);
}
.sticky-scroll table tbody tr:hover td.col-sticky {
    background-color: var(--color-bg-muted);
}

/* 4. Sortable header affordance */
.th-sort {
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    white-space: nowrap;
}
.th-sort::after {
    content: '⇅';
    opacity: 0.25;
    margin-left: 0.3em;
    font-size: 0.85em;
    color: var(--color-text-secondary);
}
.th-sort:hover::after { opacity: 0.55; }
.th-sort.sort-asc::after {
    content: '▲';
    opacity: 0.9;
    color: var(--color-text-secondary);
}
.th-sort.sort-desc::after {
    content: '▼';
    opacity: 0.9;
    color: var(--color-text-secondary);
}

/* 5. Clear-filters ghost control */
.clear-filters-btn {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    background-color: transparent;
    border: 1px solid var(--color-border-default);
    border-radius: 0.375rem;
    padding: 0.25rem 0.625rem;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.clear-filters-btn:hover {
    background-color: var(--color-bg-muted);
    border-color: var(--color-border-emphasis);
    color: var(--color-text-primary);
}
.clear-filters-btn[hidden] { display: none; }

/* 6. Live filter result count */
.filter-result-count {
    font-size: 0.72rem;
    color: var(--color-text-secondary);
}

.matrix-check {
    font-size: 0.875rem;
}

.matrix-partial {
    font-size: 0.95rem;
}

.matrix-none {
    color: var(--color-border-default);
}

/* Product Detail Modal Tabs */
.modal-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border-default);
    margin-top: 1rem;
    margin-bottom: 1rem;
    gap: 1.5rem;
}

.modal-tab-btn {
    padding-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    border-bottom: 2px solid transparent;
    transition: all 0.15s ease;
    cursor: pointer;
    background: transparent;
    border-top: none;
    border-left: none;
    border-right: none;
}

.modal-tab-btn:hover {
    color: var(--color-text-primary);
}

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

/* Competitor Product Links */
.modal-product-link {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    margin: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.375rem;
    border: 1px solid var(--color-border-default);
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    transition: all 0.15s ease;
    cursor: pointer;
}

.modal-product-link:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: var(--color-bg-muted);
}


/* ── Matrix: sticky product column + grouped headers + gap analysis ── */
.matrix-sticky-col {
    position: sticky;
    left: 0;
    background: #ffffff;
    z-index: 10;
}
thead .matrix-sticky-col {
    /* corner cell: above both the sticky thead (z-20) and sticky body col (z-10) */
    z-index: 30;
    background: #f8fafc;
}
.matrix-container tbody tr:hover .matrix-sticky-col {
    background: #f8fafc;
}
.matrix-cap-label {
    display: inline-block;
    font-weight: 500;
    line-height: 1.15;
    word-break: break-word;
}
.matrix-table th.th-sort.matrix-cap-sort::after {
    display: block;
    margin-left: 0;
    margin-top: 0.15em;
    font-size: 0.65rem;
    line-height: 1;
}
.matrix-table th.th-sort.matrix-cap-sort.sort-asc,
.matrix-table th.th-sort.matrix-cap-sort.sort-desc {
    background-color: #ecfdf5;
}

/* Gap-analysis tab */
.gap-section { margin-bottom: 1.25rem; }
.gap-row {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.4rem 0;
    border-bottom: 1px dashed var(--color-border-default);
    font-size: 0.8125rem;
}
.gap-row:last-child { border-bottom: none; }
.gap-cap-label {
    flex: 0 0 9.5rem;
    font-weight: 500;
    color: var(--color-text-primary);
}
.gap-cap-peers { flex: 1; color: var(--color-text-secondary); }
.gap-peer-chip {
    display: inline-block;
    padding: 0.05rem 0.4rem;
    margin: 0.1rem 0.15rem 0.1rem 0;
    border-radius: 0.25rem;
    font-size: 0.6875rem;
    background: var(--color-bg-muted);
    border: 1px solid var(--color-border-default);
    cursor: pointer;
}
.gap-peer-chip:hover { border-color: var(--color-accent); color: var(--color-accent); }
.gap-coverage-bar {
    height: 0.5rem;
    border-radius: 0.25rem;
    background: var(--color-bg-muted);
    overflow: hidden;
    display: flex;
}
.gap-coverage-bar > span { display: block; height: 100%; }