.engineering-hero{background:linear-gradient(135deg,var(--brand),#061a30);color:#fff;border-radius:18px;padding:22px;margin-bottom:18px}.engineering-hero h1{margin:0 0 6px}.engineering-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.eng-card{background:#fff;border:1px solid #dfe7ef;border-radius:14px;padding:16px;box-shadow:0 6px 20px rgba(15,35,60,.06)}.eng-card h3{margin-top:0}.metric-row{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px dashed #dfe7ef}.metric-row:last-child{border-bottom:0}.code-preview{white-space:pre;overflow:auto;max-height:560px;background:#0b1726;color:#d9f7e8;border-radius:12px;padding:16px;font:13px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace}.warning-list{margin:0;padding-left:20px}.warning-list li{margin:6px 0}.design-table td,.design-table th{vertical-align:top}.ring-board{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.ring-node{border:2px solid #d7e1eb;border-radius:14px;padding:14px;background:#fff}.ring-node.up{border-color:#38a169}.ring-node.down{border-color:#e53e3e}.ring-node.degraded{border-color:#d69e2e}.path-pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 9px;background:#edf2f7;margin:3px;font-size:12px}.decision{font-size:24px;font-weight:800;letter-spacing:.02em}.decision.INCREASE_PEERING{color:#2563eb}.decision.INCREASE_IIL{color:#9a6700}.decision.INCREASE_BOTH{color:#7c3aed}.decision.FIX_NETWORK_BEFORE_CAPACITY{color:#c53030}.ip-chip{display:inline-block;padding:4px 8px;border-radius:7px;background:#eef6ff;font-family:ui-monospace,monospace;margin:2px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:850px){.two-col{grid-template-columns:1fr}.engineering-hero{padding:18px}.decision{font-size:20px}}

.tenant-switch{margin:0}.tenant-switch select{max-width:190px;padding:7px 28px 7px 9px;border-radius:8px;border:1px solid #cad6e2;background:#fff;font-size:12px}@media(max-width:700px){.tenant-switch select{max-width:130px}.user-identity{display:none}}