:root{--color-primary: #1a1a2e;--color-secondary: #16213e;--color-accent: #0f3460;--color-danger: #e94560;--color-success: #2ecc71;--color-warning: #f39c12;--color-bg: #f4f6f9;--color-surface: #ffffff;--color-border: #e0e4ea;--color-text: #1e1e2f;--color-text-secondary: #6b7280;--color-text-muted: #9ca3af;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 2px 8px rgba(0, 0, 0, .08);--shadow-lg: 0 4px 20px rgba(0, 0, 0, .12);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";--font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;--sidebar-width: 220px;--header-height: 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