:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-bg: #f8fafc;--color-text: #0f172a;--color-muted: #64748b;--color-label: #334155;--color-border: #e2e8f0;--color-border-strong: #cbd5e1;--color-sidebar-bg: #0f172a;--color-sidebar-border: #334155;--color-sidebar-text: #cbd5e1;--color-sidebar-text-muted: #94a3b8;--color-sidebar-hover: #1e293b;--color-danger: #dc2626;--color-danger-hover: #b91c1c;--color-danger-text: #b91c1c;--color-success-bg: #dcfce7;--color-success-text: #166534;--color-warning-bg: #fef3c7;--color-warning-text: #92400e;--color-danger-bg: #fee2e2;--color-danger-bg-text: #991b1b;--radius-sm: .5rem;--radius-md: .75rem}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,sans-serif;background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased}a{color:inherit}.layout{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--color-sidebar-bg);color:#fff;display:flex;flex-direction:column}.sidebar-header{padding:1rem 1.25rem;border-bottom:1px solid var(--color-sidebar-border)}.sidebar-title{font-size:1.125rem;font-weight:700}.sidebar-user{font-size:.75rem;color:var(--color-sidebar-text-muted);margin-top:.25rem;overflow:hidden;text-overflow:ellipsis}.sidebar-nav{flex:1;padding:.75rem;display:flex;flex-direction:column;gap:.25rem;overflow-y:auto}.nav-link{display:flex;align-items:center;gap:.625rem;padding:.5rem .75rem;border-radius:var(--radius-sm);color:var(--color-sidebar-text);text-decoration:none;font-size:.875rem}.nav-link 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