:root{--color-bg: #0f1219;--color-bg-elevated: #161b26;--color-surface: #ffffff;--color-surface-subtle: #f4f6fb;--color-border: #e2e8f0;--color-border-strong: #cbd5e1;--color-text: #0f172a;--color-text-muted: #64748b;--color-text-faint: #94a3b8;--color-accent: #2563eb;--color-accent-hover: #1d4ed8;--color-accent-soft: rgba(37, 99, 235, .1);--color-success: #059669;--color-success-soft: rgba(5, 150, 105, .1);--color-danger: #dc2626;--color-danger-hover: #b91c1c;--color-danger-soft: rgba(220, 38, 38, .08);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);--shadow-md: 0 4px 16px -4px rgba(15, 23, 42, .08), 0 0 0 1px rgba(15, 23, 42, .04);--shadow-lg: 0 20px 50px -24px rgba(15, 23, 42, .18);--font: "Be Vietnam Pro", "Segoe UI", system-ui, sans-serif;--font-mono: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;--header-offset: 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summary::-webkit-details-marker{display:none}.details-toggle summary:before{content:"▶";font-size:.65rem;transition:transform .2s;color:var(--color-text-muted)}.details-toggle[open] summary:before{transform:rotate(90deg)}.details-toggle__body{padding:14px 16px 16px;border-top:1px solid var(--color-border);background:var(--color-surface);font-size:.88rem;color:var(--color-text-muted);line-height:1.6}.details-toggle__body p{margin:0 0 10px}.details-toggle__body p:last-child{margin-bottom:0}.details-toggle__body code{font-family:var(--font-mono);font-size:.82em;background:var(--color-surface-subtle);padding:1px 5px;border-radius:4px;border:1px solid var(--color-border);color:var(--color-accent)}.details-toggle__body kbd{font-family:var(--font-mono);font-size:.8em;background:#1e293b;color:#e2e8f0;padding:1px 6px;border-radius:4px;border-bottom:2px solid #0f172a}.preview-card{border:1px solid 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