:root{--bg: #f6f7f9;--surface: #ffffff;--surface-2: #f0f2f5;--surface-hover: #eef1f5;--border: #e2e6ec;--border-strong: #cdd4de;--text: #14181f;--text-muted: #5b6472;--text-faint: #8a93a1;--accent: #0f766e;--accent-hover: #0c5f59;--accent-soft: #d7f0ec;--accent-contrast: #ffffff;--info: #1d4ed8;--success: #15803d;--warning: #b45309;--danger: #b91c1c;--danger-hover: #991b1b;--danger-soft: #fbe4e4;--warning-soft: #fdf0dc;--success-soft: #dcf2e3;--info-soft: #dde6fb;--ring: #14b8a6;--radius: 10px;--radius-sm: 7px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .05);--shadow-md: 0 4px 12px rgba(16, 24, 40, .08), 0 2px 4px rgba(16, 24, 40, .04);--shadow-lg: 0 20px 48px rgba(16, 24, 40, .18);--sidebar-w: 256px;--topbar-h: 60px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";--mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", 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