:root{--color-primary: #6366F1;--color-primary-hover: #818CF8;--color-primary-dim: rgba(99, 102, 241, .15);--color-primary-glow: rgba(99, 102, 241, .3);--color-secondary: #10B981;--color-secondary-hover: #34D399;--color-secondary-dim: rgba(16, 185, 129, .15);--color-warning: #F59E0B;--color-warning-hover: #FBBF24;--color-warning-dim: rgba(245, 158, 11, .15);--color-danger: #EF4444;--color-danger-hover: #F87171;--color-danger-dim: rgba(239, 68, 68, .15);--color-info: #3B82F6;--color-info-dim: rgba(59, 130, 246, .15);--bg-base: #F8FAFC;--bg-surface: #FFFFFF;--bg-surface-hover: #F1F5F9;--bg-surface-active: #E2E8F0;--bg-elevated: rgba(255, 255, 255, .9);--bg-glass: rgba(255, 255, 255, .7);--bg-overlay: rgba(0, 0, 0, .3);--text-primary: #0F172A;--text-secondary: #475569;--text-tertiary: #64748B;--text-inverse: #FFFFFF;--border-default: #E2E8F0;--border-hover: #CBD5E1;--border-focus: #6366F1}:root.dark-theme{--bg-base: #0F172A;--bg-surface: #1E293B;--bg-surface-hover: #334155;--bg-surface-active: #475569;--bg-elevated: rgba(30, 41, 59, .8);--bg-glass: rgba(30, 41, 59, .6);--bg-overlay: rgba(0, 0, 0, .5);--text-primary: #F8FAFC;--text-secondary: #94A3B8;--text-tertiary: #64748B;--text-inverse: #0F172A;--border-default: #334155;--border-hover: #475569;--border-focus: #6366F1}:root{--border-radius-sm: 6px;--border-radius-md: 10px;--border-radius-lg: 16px;--border-radius-xl: 24px;--border-radius-full: 9999px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-xl: 0 16px 48px rgba(0, 0, 0, .6);--shadow-glow: 0 0 20px rgba(99, 102, 241, .3);--shadow-glow-success: 0 0 20px rgba(16, 185, 129, .3);--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--space-3xl: 64px;--font-family: "Inter", "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--font-size-xs: 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svg{width:20px;height:20px;flex-shrink:0}.sidebar-nav-label{overflow:hidden;text-overflow:ellipsis}.sidebar-collapsed .sidebar-nav-label{opacity:0;width:0}.sidebar-footer{padding:var(--space-md);border-top:1px solid var(--border-default)}.sidebar-toggle{display:flex;align-items:center;justify-content:center;width:100%;padding:var(--space-sm);border:none;background:none;color:var(--text-secondary);cursor:pointer;border-radius:var(--border-radius-md);transition:all var(--transition-fast)}.sidebar-toggle:hover{background:var(--bg-surface-hover);color:var(--text-primary)}.header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-xl);min-height:var(--header-height);border-bottom:1px solid 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