.tech-background {
  background: linear-gradient(to bottom right, #000000, #1a1a2e);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.tech-grid {
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.05) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 20px 20px;
  width: 100%;
  height: 100%;
  animation: pan 50s linear infinite;
}

.tech-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.particle {
  position: absolute;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  animation: float 15s infinite ease-in-out;
}

@keyframes pan {
  from {
    background-position: 0px 0px;
  }
  to {
    background-position: 500px 500px;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

.header-blur {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.section-gradient {
  background: linear-gradient(
    135deg,
    rgba(79, 70, 229, 0.03) 0%,
    rgba(16, 185, 129, 0.03) 100%
  );
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.section-gradient::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    circle at top right,
    rgba(79, 70, 229, 0.03),
    transparent 50%
  );
  pointer-events: none;
}

.section-gradient::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    circle at bottom left,
    rgba(16, 185, 129, 0.03),
    transparent 50%
  );
  pointer-events: none;
}

.glass-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
}

#mobile-menu {
  transition: opacity 0.3s ease-in-out;
}

#mobile-menu.hidden {
  opacity: 0;
  pointer-events: none;
}

#mobile-menu:not(.hidden) {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 768px) {
  section .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  section h2 {
    text-align: center;
  }

  section p {
    text-align: center;
  }
}

.countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.countdown-item span.text-xs {
  opacity: 0.7;
}