:root{--admin-bg:#f9fafb;--sidebar-bg:#ffffff;--sidebar-width:260px;--border-color:#e5e7eb;--text-primary:#111827;--text-secondary:#6b7280;--primary-blue:#4f46e5}.admin-layout{display:flex;min-height:100vh;background-color:var(--admin-bg)}.admin-sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);border-right:1px solid var(--border-color);display:flex;flex-direction:column;padding:1.5rem;flex-shrink:0}.sidebar-header{margin-bottom:2rem}.sidebar-logo{font-size:1.5rem;font-weight:700;color:var(--text-primary);text-decoration:none}.sidebar-nav{display:flex;flex-direction:column;gap:.5rem}.nav-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:.5rem;text-decoration:none;color:var(--text-secondary);font-weight:500;transition:all .2s ease}.nav-item:hover{background-color:var(--admin-bg);color:var(--text-primary)}.nav-item.active{background-color:#eef2ff;color:var(--primary-blue)}.nav-item svg{width:24px;height:24px}.admin-main-content{flex-grow:1;padding:2rem 3rem;overflow-y:auto}.loading-state{display:flex;flex-direction:column;align-items:center;gap:1rem;padding-top:5rem;color:var(--text-secondary);font-size:1.25rem}.loading-spinner{width:36px;height:36px;border:3px solid var(--border-color);border-top-color:var(--primary-blue);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.dashboard-header{margin-bottom:2rem}.dashboard-header h1{font-size:2rem;font-weight:700;color:var(--text-primary)}.dashboard-header p{font-size:1rem;color:var(--text-secondary)}.stat-cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:1.5rem;gap:1.5rem;margin-bottom:3rem}.stat-card{background:var(--sidebar-bg);padding:1.5rem;border-radius:.75rem;border:1px solid var(--border-color);display:flex;align-items:flex-start;gap:1rem;transition:box-shadow .2s ease,transform .2s ease}.stat-card:hover{box-shadow:0 4px 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