.demo-banner-region {
  position: fixed;
  top: var(--demo-banner-top, calc(env(safe-area-inset-top, 0px) + 76px));
  left: 50%;
  transform: translateX(-50%);
  width: min(440px, calc(100vw - 24px));
  z-index: 1600;
  pointer-events: none;
}

.demo-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 16px;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(12, 12, 12, 0.96), rgba(18, 18, 18, 0.9));
  border: 1px solid rgba(0, 255, 102, 0.24);
  box-shadow:
    0 18px 40px rgba(0, 0, 0, 0.42),
    0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: rgba(245, 245, 245, 0.94);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  pointer-events: auto;
  animation: demoBannerSlideIn 480ms cubic-bezier(0.16, 1, 0.3, 1);
}

.demo-banner__text {
  flex: 1 1 auto;
  min-width: 0;
}

.demo-banner__link {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
  text-underline-offset: 2px;
}

.demo-banner__link:hover {
  text-decoration: underline;
}

.demo-banner__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(245, 245, 245, 0.92);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: background 140ms ease, border-color 140ms ease, transform 140ms ease;
}

.demo-banner__close:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(0, 255, 102, 0.26);
  transform: translateY(-1px);
}

.demo-banner__close:focus-visible {
  outline: 2px solid rgba(0, 255, 102, 0.65);
  outline-offset: 2px;
}

@keyframes demoBannerSlideIn {
  from {
    opacity: 0;
    transform: translateY(-14px) scale(0.97);
  }

  70% {
    opacity: 1;
    transform: translateY(2px) scale(1);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 520px) {
  .demo-banner-region {
    top: var(--demo-banner-top, calc(env(safe-area-inset-top, 0px) + 86px));
    width: calc(100vw - 20px);
  }

  .demo-banner {
    gap: 12px;
    padding: 12px 13px;
    font-size: 13px;
  }
}