:root{--teal: #5BC0BE;--teal-dark: #3A9896;--teal-light: #8ED4D2;--coral: #E85A4F;--coral-dark: #D64940;--coral-light: #F08B83;--gray-50: #F9FAFB;--gray-100: #F3F4F6;--gray-200: #E5E7EB;--gray-300: #D1D5DB;--gray-400: #9CA3AF;--gray-500: #6B7280;--gray-600: #4B5563;--gray-700: #374151;--gray-800: #1F2937;--gray-900: #111827;--success: #10B981;--warning: #F59E0B;--error: #EF4444;--info: #3B82F6;--sidebar-width: 260px;--header-height: 64px;--font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "SF Mono", "Fira Code", monospace;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--radius-sm: 6px;--radius: 8px;--radius-lg: 12px;--radius-xl: 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rgba(255,255,255,.1)}.sidebar-user{display:flex;align-items:center;gap:12px}.sidebar-avatar{width:36px;height:36px;border-radius:50%;background:var(--teal);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px}.sidebar-user-info{flex:1;min-width:0}.sidebar-user-name{font-weight:600;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-user-role{font-size:11px;color:var(--gray-500)}.page-header{margin-bottom:24px}.page-header h1{font-size:24px;font-weight:700;color:var(--gray-900);margin-bottom:4px}.page-header p{color:var(--gray-500);font-size:14px}.page-header-actions{display:flex;align-items:center;gap:12px;margin-top:16px}.card{background:#fff;border-radius:var(--radius-lg);border:1px solid var(--gray-200);box-shadow:var(--shadow-sm)}.card-header{padding:16px 20px;border-bottom:1px solid var(--gray-200);display:flex;align-items:center;justify-content:space-between}.card-header 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