.back-home {
  position: fixed;
  top: 16px;
  left: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
  border-radius: 16px;
  background: rgba(231, 229, 225, 0.5);
  color: #111;
  letter-spacing: 0.01em;
  font-weight: 600;
  font-size: 18px;
  font-family: "Brockmann", "BrockmannRegular", "Helvetica Neue", Arial, sans-serif;
  text-decoration: none;
  transition: transform 0.2s ease, background-color 0.2s ease, opacity 0.2s ease;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: 60;
}

.back-home:hover,
.back-home:focus-visible {
  transform: translateY(-2px);
  background: rgba(231, 229, 225, 0.65);
  outline: none;
}

.back-home:active {
  transform: translateY(0);
  background: rgba(231, 229, 225, 0.55);
}

.back-home:focus-visible {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.6);
}

.back-home.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.experiment-switcher {
  position: fixed;
  right: 16px;
  bottom: 16px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  z-index: 50;
  font-family: inherit;
}

.info-toggle {
  position: fixed;
  left: 16px;
  bottom: 16px;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
  border-radius: 16px;
  border: none;
  background: rgba(231, 229, 225, 0.5);
  color: #111;
  letter-spacing: 0.01em;
  font-weight: 600;
  font-family: "Brockmann", "BrockmannRegular", "Helvetica Neue", Arial, sans-serif;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, background-color 0.2s ease, opacity 0.2s ease;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: 50;
}

.info-toggle:hover,
.info-toggle:focus-visible {
  transform: translateY(-2px);
  background: rgba(231, 229, 225, 0.65);
  outline: none;
}

.info-toggle:active {
  transform: translateY(0);
  background: rgba(231, 229, 225, 0.55);
}

.info-toggle:focus-visible {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.6);
}

.info-toggle.is-active {
  opacity: 0.85;
}

.experiment-switcher__toggle,
.experiment-switcher__item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
  border-radius: 16px;
  border: none;
  background: rgba(231, 229, 225, 0.5);
  color: #111;
  letter-spacing: 0.01em;
  font-weight: 600;
  font-family: "Brockmann", "BrockmannRegular", "Helvetica Neue", Arial, sans-serif;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, opacity 0.2s ease;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  box-sizing: border-box;
}

.experiment-switcher__toggle:hover,
.experiment-switcher__toggle:focus-visible,
.experiment-switcher__item:hover,
.experiment-switcher__item:focus-visible {
  transform: translateY(-2px);
  background: rgba(231, 229, 225, 0.65);
  outline: none;
}

.experiment-switcher__toggle:active,
.experiment-switcher__item:active {
  transform: translateY(0);
  background: rgba(231, 229, 225, 0.55);
}

.experiment-switcher__toggle:focus-visible,
.experiment-switcher__item:focus-visible {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.6);
}

.experiment-switcher__toggle {
  font-size: 15px;
  gap: 8px;
}

.experiment-switcher__list {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  align-self: stretch;
  width: 100%;
}

.experiment-switcher__item {
  font-size: 14px;
  transform: translateY(12px);
  opacity: 0;
  transition: transform 0.35s ease, opacity 0.35s ease;
  justify-content: flex-start;
  text-align: left;
}

.experiment-switcher--open .experiment-switcher__list {
  opacity: 1;
  pointer-events: auto;
}

.experiment-switcher--open .experiment-switcher__item {
  transform: translateY(0);
  opacity: 1;
}

.experiment-switcher__item.is-current {
  opacity: 0.6;
  cursor: default;
  pointer-events: none;
}

.experiment-switcher__item:disabled {
  opacity: 0.6;
  cursor: default;
}

@media (max-width: 660px) {
  .info-toggle {
    display: inline-flex;
  }

  .info-panel {
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
    bottom: calc(16px + 58px);
  }

  .info-panel.is-info-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .info-panel.is-info-open .instruction-card {
    pointer-events: auto;
    margin-bottom: 0;
  }
}

@media (max-width: 560px) {
  .back-home {
    top: 12px;
    left: 12px;
    padding: 12px 16px;
    font-size: 16px;
  }

  .experiment-switcher {
    right: 12px;
    bottom: 12px;
  }

  .experiment-switcher__toggle,
  .experiment-switcher__item {
    padding: 12px 16px;
    font-size: 14px;
  }

  .info-toggle {
    padding: 12px 16px;
    font-size: 14px;
  }
}