/* Лавовый фон */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  z-index: -2;
  background: radial-gradient(circle at 20% 20%, #F0FFF0, transparent 60%),
              radial-gradient(circle at 80% 30%, #FFE4E1, transparent 50%),
              radial-gradient(circle at 50% 80%, #FFFFE0, transparent 70%);
  animation: lavaMove 20s ease-in-out infinite;
  background-size: 200% 200%;
  filter: blur(50px);
}

/* Анимация движения "лавы" */
@keyframes lavaMove {
  0% { background-position: 0% 0%; }
  50% { background-position: 100% 100%; }
  100% { background-position: 0% 0%; }
}

/* Фигуры на фоне */
.lava-shape {
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  opacity: 0;
  animation: floatShape 20s infinite ease-in-out;
  filter: blur(30px);
}

/* Анимация появления/исчезновения */
@keyframes floatShape {
  0%   { transform: scale(0.5) translateY(0); opacity: 0; }
  10%  { opacity: 0.3; }
  50%  { transform: scale(1.2) translateY(-100px); opacity: 0.2; }
  90%  { opacity: 0.3; }
  100% { transform: scale(0.5) translateY(0); opacity: 0; }
}
.glass-ios {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}