*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-base: #f5f6fa;--bg-surface: #ffffff;--bg-elevated: #f9fafb;--bg-overlay: #f3f4f6;--border: #e5e7eb;--border-bright: #d1d5db;--text-primary: #111827;--text-secondary: #6b7280;--text-muted: #9ca3af;--text-inverse: #ffffff;--accent: #3b82f6;--accent-dim: #2563eb;--accent-glow: rgba(59, 130, 246, .15);--accent-faint: rgba(59, 130, 246, .08);--green: #22c55e;--green-dim: rgba(34, 197, 94, .1);--red: #ef4444;--red-dim: rgba(239, 68, 68, .1);--blue: #3b82f6;--blue-dim: rgba(59, 130, 246, .1);--r-sm: 3px;--r-md: 6px;--r-lg: 10px;--r-xl: 16px;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 16px rgba(0,0,0,.1);--shadow-lg: 0 8px 32px rgba(0,0,0,.12);--sidebar-w: 220px;--topbar-h: 48px;--font-display: "Syne", sans-serif;--font-body: "DM Sans", sans-serif;--font-mono: "DM Mono", 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var(--green)}.toast.error{border-left:3px solid var(--red)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:60px 20px;color:var(--text-muted);text-align:center}.empty-state-icon{opacity:.3}.empty-state h3{font-size:16px;color:var(--text-secondary)}.empty-state p{font-size:13px;max-width:300px}.spinner{width:18px;height:18px;border:2px solid var(--border-bright);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes 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