:root{color-scheme:dark;--bg-app:#0b0f14;--bg-sidebar:#0e141b;--surface-card:#131a22;--surface-raised:#1c2836;--surface-bot-bubble:#22303f;--border-subtle:#161d26;--border-default:#1e2732;--border-card:#223;--border-input:#2a3644;--text-primary:#e6edf3;--text-strong:#c3cdd7;--text-secondary:#9aa7b4;--text-tertiary:#8b98a5;--text-muted:#6b7785;--accent-blue:#3b82f6;--accent-blue-strong:#2563eb;--accent-blue-text:#fff;--success:#4ade80;--success-solid:#166534;--warning:#f59e0b;--danger:#f87171;--danger-solid:#7c2d12;--status-bot:var(--success);--status-human:var(--warning);--text-error:var(--danger);--focus-ring:var(--accent-blue);--font-sans:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;--text-hero:40px;--text-h1:24px;--text-h2:18px;--text-h3:16px;--text-body:14px;--text-small:13px;--text-xs:12px;--text-mini:11px;--text-mono:13px;--weight-normal:400;--weight-medium:500;--weight-semibold:600;--weight-bold:700;--leading-tight:1.2;--leading-normal:1.5;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-7:28px;--space-8:32px;--pad-input:9px 11px;--pad-input-lg:10px 12px;--pad-button:9px 16px;--pad-button-sm:5px 10px;--pad-card:18px;--pad-page:28px;--radius-badge:6px;--radius-input:8px;--radius-card:10px;--radius-card-lg:12px;--radius-pill:20px;--border-width:1px;--shadow-none:none;--shadow-sm:0 1px 2px rgba(0,0,0,.4);--shadow-toast:0 4px 16px rgba(0,0,0,.45);--transition-fast:120ms ease;--hue-purple:#a855f7;--hue-blue:#3b82f6;--hue-orange:#f97316;--hue-teal:#14b8a6;--grad-purple:linear-gradient(135deg,#a855f7,#7c3aed);--grad-blue:linear-gradient(135deg,#3b82f6,#2563eb);--grad-orange:linear-gradient(135deg,#fb923c,#f97316);--grad-teal:linear-gradient(135deg,#2dd4bf,#10b981);--grad-text:linear-gradient(90deg,#60a5fa,#a855f7);--hero-wash:radial-gradient(120% 140% at 88% 0%,rgba(124,58,237,.2),transparent 55%),radial-gradient(90% 120% at 0% 0%,rgba(37,99,235,.14),transparent 50%),var(--surface-card);--glow-opacity:0.45;--glow-blur:30px}:root[data-theme=light]{color-scheme:light;--bg-app:#f5f7fa;--bg-sidebar:#eef1f5;--surface-card:#fff;--surface-raised:#e7ecf2;--surface-bot-bubble:#e3ebf5;--border-subtle:#eceff3;--border-default:#e2e6ec;--border-card:#e4e8ee;--border-input:#cbd3dd;--text-primary:#0f172a;--text-strong:#1f2937;--text-secondary:#475569;--text-tertiary:#64748b;--text-muted:#94a3b8;--accent-blue:#2563eb;--accent-blue-strong:#1d4ed8;--accent-blue-text:#fff;--success:#16a34a;--success-solid:#15803d;--warning:#d97706;--danger:#dc2626;--danger-solid:#b91c1c;--shadow-sm:0 1px 2px rgba(15,23,42,.08);--shadow-toast:0 6px 20px rgba(15,23,42,.14);--glow-opacity:0.22;--hero-wash:radial-gradient(120% 140% at 88% 0%,rgba(124,58,237,.1),transparent 55%),radial-gradient(90% 120% at 0% 0%,rgba(37,99,235,.08),transparent 50%),var(--surface-card)}