:root{--color-bg: #f8f8f6;--color-surface: #ffffff;--color-surface-2: #f2f2ef;--color-border: #e5e5e0;--color-border-light: #eeeeea;--color-text: #1a1a1a;--color-text-secondary: #6b6b6b;--color-text-muted: #9b9b9b;--color-primary: #2d2d2d;--color-primary-hover: #111111;--color-accent: #4f46e5;--color-accent-light: #eef2ff;--color-accent-hover: #4338ca;--color-open: #6b7280;--color-open-bg: #f3f4f6;--color-in-progress: #2563eb;--color-in-progress-bg: #eff6ff;--color-review: #d97706;--color-review-bg: #fffbeb;--color-done: #16a34a;--color-done-bg: #f0fdf4;--color-low: #6b7280;--color-low-bg: #f3f4f6;--color-medium: #2563eb;--color-medium-bg: #eff6ff;--color-high: #d97706;--color-high-bg: #fffbeb;--color-urgent: #dc2626;--color-urgent-bg: #fef2f2;--sidebar-width: 240px;--sidebar-bg: #1a1a2e;--sidebar-text: #c8c8d4;--sidebar-text-active: #ffffff;--sidebar-accent: #4f46e5;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);--shadow-lg: 0 16px 40px rgba(0,0,0,.12), 0 4px 10px rgba(0,0,0,.06);--shadow-modal: 0 24px 80px rgba(0,0,0,.18);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-size-xs: 11px;--font-size-sm: 13px;--font-size-base: 15px;--font-size-md: 16px;--font-size-lg: 18px;--font-size-xl: 22px;--font-size-2xl: 28px;--font-size-3xl: 36px;--transition: .15s cubic-bezier(.4, 0, .2, 1);--transition-slow: .3s cubic-bezier(.4, 0, .2, 1);--bottom-nav-height: 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var(--space-3);border-radius:var(--radius-sm);color:var(--sidebar-text);font-size:var(--font-size-sm);font-weight:500;transition:background var(--transition),color var(--transition);cursor:pointer}.nav-item:hover{background:#ffffff14;color:#fff}.nav-item.active{background:var(--color-accent);color:#fff}.nav-item svg{width:18px;height:18px;flex-shrink:0}.sidebar-footer{padding:var(--space-4) var(--space-3);border-top:1px solid rgba(255,255,255,.08)}.sidebar-user{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);cursor:pointer;transition:background 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