:root{--sidebar-w: 240px;--sidebar-bg: #0f172a;--sidebar-border: #1e293b;--sidebar-text: #94a3b8;--sidebar-text-hover: #e2e8f0;--sidebar-active-bg: #1d4ed8;--sidebar-active-text: #ffffff;--sidebar-section: #475569;--bg: #f1f5f9;--card-bg: #ffffff;--border: #e2e8f0;--border-focus: #3b82f6;--text: #0f172a;--text-muted: #64748b;--text-light: #94a3b8;--accent: #3b82f6;--accent-hover: #2563eb;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--danger-hover: #dc2626;--radius: 6px;--shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06)}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe 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var(--sidebar-border);color:#fff;border-radius:4px;width:32px;height:32px;font-size:16px;line-height:1;cursor:pointer}.sidebar{transform:translate(-100%);transition:transform .2s ease;z-index:110;width:260px;min-width:260px}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a80;z-index:105}.main-content{margin-left:0}}.page{min-width:0}.page-header{background:var(--card-bg);border-bottom:1px solid var(--border);padding:16px 28px;display:flex;align-items:center;gap:12px}.page-header h2{margin:0;font-size:18px;font-weight:600;color:var(--text)}.page-header .header-actions{margin-left:auto;display:flex;gap:8px;align-items:center}.page-body{padding:24px 28px;flex:1}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.card-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}.card-header 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