/* Banner: an animated brand-rainbow wash behind Mintlify's white text.
   Mintlify always renders banner text white, so every gradient stop is a
   deep, saturated shade (all >=7:1 on white) — the colors evoke the FastMCP
   watercolor logo while keeping the announcement legible in both themes.
   A dark fallback color is configured in docs.json for the no-CSS case. */
#banner {
  font-size: 0.95rem !important;
  font-weight: 600 !important;
  padding-top: 12px !important;
  padding-bottom: 12px !important;
  overflow: hidden !important;
}

#banner::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(
    90deg,
    #1e40af 0%,
    #5b21b6 22%,
    #115e59 44%,
    #9a3412 66%,
    #9d174d 88%,
    #1e40af 100%
  );
  background-size: 250% 100%;
  animation: colorWave 18s ease-in-out infinite alternate;
  pointer-events: none;
}

/* Keep the announcement text above the animated wash. */
#banner > * {
  position: relative;
  z-index: 1;
}

@keyframes colorWave {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 100% 50%;
  }
}

#banner * {
  margin: 0 !important;
}

@media (max-width: 767px) {
  #banner {
    font-size: 0.8rem !important;
    padding-top: 8px !important;
    padding-bottom: 8px !important;
  }
}