body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
  background: #000;
  overflow: hidden;
  min-height: 100vh;
  position: fixed;
  width: 100%;
  height: 100%;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: none;
  touch-action: none;
}

.background-video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
}



.logo-img {
  position: fixed;
  left: 50%;
  top: 6vh;
  transform: translateX(-50%);
  z-index: 2;
  max-width: 800vw;
  max-height: 400vh;
  user-select: none;
  pointer-events: none;
}

.dust-layer {
  position: fixed;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  z-index: 3;
  pointer-events: none;
}

.dust-touch-area {
  position: absolute;
  pointer-events: auto;
  z-index: 3;
}

.dust-img {
  position: absolute;
  left: 0;
  top: 0;
  pointer-events: none;
  user-select: none;
  transition: opacity 0.5s cubic-bezier(0.4,0,0.2,1);
  opacity: 1;
  width: auto !important;
  height: auto !important;
  max-width: none !important;
  max-height: none !important;
  object-fit: none;
}
.dust-img.fade-out {
  opacity: 0;
}

.socials-bar {
  position: fixed;
  left: 50%;
  bottom: 2rem;
  transform: translateX(-50%);
  display: flex;
  gap: 32px;
  z-index: 50;
}
.social-btn {
  width: 112px;
  height: 112px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #e5e7eb;
  transition: background 0.2s, transform 0.1s;
  text-decoration: none;
}
.social-btn:hover {
  background: #f3f4f6;
}
.social-btn:active {
  transform: scale(0.95);
}

.social-btn-img {
  width: 88px;
  height: 88px;
}

#particle-layer {
  position: fixed;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 101;
}

@media (max-width: 440px) {
  .logo-img {
    max-width: 90vw;
    max-height: 24vh;
    top: 4vh;
  }
  .dust-layer {
    top: -20px;
  }
  .socials-bar {
    bottom: 1.2rem;
    gap: 16px;
  }
  .social-btn {
    width: 48px;
    height: 48px;
  }
  .social-btn-img {
    width: 40px;
    height: 40px;
  }
}

@media (min-width: 1900px) {
  .dust-img {
    transform: scale(1.2);
  }
}