:root{--ink:#17213a;--muted:#6c7487;--line:#e6e8ef;--bg:#f7f8fb;--card:#fff;--primary:#6757df;--danger:#c13e4f;--success:#17775a;--radius:18px;--shadow:0 14px 42px rgba(21,31,56,.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,system-ui,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.admin-shell{min-height:100vh;display:grid;grid-template-columns:260px 1fr}.sidebar{background:#fff;border-right:1px solid var(--line);padding:24px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:12px;margin-bottom:36px}.brand span,.logo-mark{width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,#6757df,#8c7df0);display:grid;place-items:center;color:#fff;font-weight:800}.sidebar nav{display:grid;gap:8px}.sidebar nav a{padding:12px 14px;border-radius:12px;color:#4d566b}.sidebar nav 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