:root{--bg:#f5f7fb;--panel:#fff;--ink:#0b0d12;--muted:#0b0d1294;--line:#0b0d121a;--soft:#0b0d120b;--accent:#2563eb}*{box-sizing:border-box}html,body{min-height:100%}body{background:var(--bg);color:var(--ink);margin:0;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.admin-shell{grid-template-columns:248px minmax(0,1fr);min-height:100vh;display:grid}.admin-sidebar{border-right:1px solid var(--line);background:#eef3fb;flex-direction:column;height:100vh;padding:24px 18px;display:flex;position:sticky;top:0}.sidebar-brand{align-items:center;gap:12px;padding:8px 8px 22px;display:flex}.brand-mark{background:var(--ink);color:#fff;border-radius:12px;place-items:center;width:38px;height:38px;font-weight:900;display:grid}.brand-title,.account-name{margin:0;font-weight:800}.brand-subtitle,.account-role{color:var(--muted);margin:4px 0 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