html, body { margin: 0; background: #f5f8f7; }
#tanktrail-app { position: fixed; inset: 48px 0 0; width: 100%; height: calc(100% - 48px); }
.catalog-link {
  position: fixed; z-index: 20; top: 6px; right: 22px;
  padding: 8px 12px; border-radius: 8px; color: #124958; background: #fff;
  font: 600 14px system-ui, sans-serif; text-decoration: none;
}
.catalog-link:focus-visible { outline: 3px solid #047b87; outline-offset: 3px; }
noscript { display: block; margin: 100px 24px; font: 18px system-ui, sans-serif; }