:root{--admin-bg: #f6f7fb;--admin-card: #ffffff;--admin-border: #e5e7eb;--admin-text: #0f172a;--admin-muted: #64748b;--admin-primary: #2563eb;--admin-active: rgba(37,99,235,.1)}.admin-shell{background:var(--admin-bg);min-height:100vh}.admin-sidebar{background:var(--admin-card);border-right:1px solid var(--admin-border)}.admin-brand{font-weight:700;letter-spacing:.2px;color:var(--admin-text)}.admin-subtitle{color:var(--admin-muted);font-size:.85rem}.admin-nav-link{color:var(--admin-text);border-radius:12px;transition:background .15s ease,transform .15s ease}.admin-nav-link:hover{background:#f1f5f9;transform:translateY(-1px)}.admin-nav-link.active{background:var(--admin-active);color:var(--admin-primary);font-weight:600}.admin-icon{width:18px;height:18px}.admin-badge{font-size:.72rem;border-radius:999px;padding:.25rem .5rem}