body {
  font-family: 'Roboto', sans-serif;
  background-color: #fafafa;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* Gear / pulse animation */
.gear-container {
  position: relative;
  height: 120px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 1.5rem 0;
}

.pulse-circle {
  position: absolute;
  width: 100px;
  height: 100px;
  background-color: #3f5c78;
  border-radius: 50%;
  opacity: 0.18;
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1);   opacity: 0.18; }
  50%       { transform: scale(1.5); opacity: 0;    }
}

.floating {
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%   { transform: translateY(0px);   }
  50%  { transform: translateY(-10px); }
  100% { transform: translateY(0px);   }
}