:root{--bg:#f4f7fb;--surface:#fff;--surface-2:#f8fafc;--text:#172033;--muted:#64748b;--line:#e2e8f0;--primary:#1666d8;--primary-dark:#0f4fae;--success:#147d55;--warning:#a16207;--danger:#b42318;--sidebar:#101827;--sidebar-text:#cbd5e1;--radius:16px;--shadow:0 12px 35px rgba(15,23,42,.07)}*{box-sizing:border-box}html{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}body{margin:0;min-height:100vh}a{color:var(--primary);text-decoration:none}button,input,select,textarea{font:inherit}input,select,textarea{width:100%;border:1px solid #cbd5e1;border-radius:10px;background:#fff;color:var(--text);padding:10px 12px;outline:none;transition:border .15s,box-shadow .15s}input:focus,select:focus,textarea:focus{border-color:#62a1f7;box-shadow:0 0 0 3px rgba(22,102,216,.12)}textarea{resize:vertical;min-height:80px}.admin-shell{display:grid;grid-template-columns:250px 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