.language-toggle,
.dev-panel-toggle {
  position: fixed;
  right: 0;
  z-index: 60;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.15rem;
  min-height: 4.5rem;
  padding: 0.9rem 0.55rem;
  border: 0;
  background: #151716;
  color: #ffffff;
  cursor: pointer;
  font-family: var(--font-mono, monospace);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  line-height: 1;
  writing-mode: vertical-rl;
}

.language-toggle {
  top: 50%;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transform: translateY(-100%);
}

.dev-panel-toggle {
  top: 50%;
}

.language-toggle:focus-visible,
.dev-panel-toggle:focus-visible,
.dev-panel button:focus-visible,
.dev-panel input:focus-visible {
  outline: 2px solid #f34848;
  outline-offset: 3px;
}

.dev-panel {
  position: fixed;
  top: 50%;
  right: 0;
  z-index: 61;
  width: min(260px, calc(100vw - 2rem));
  max-height: calc(100dvh - 2rem);
  padding: 1.25rem;
  overflow-y: auto;
  background: #151716;
  color: #ffffff;
  box-shadow: -0.75rem 0 2rem rgba(0, 0, 0, 0.28);
  font-family: var(--font-mono, monospace);
  font-size: 0.69rem;
  letter-spacing: 0.06em;
  line-height: 1.45;
  transform: translate(100%, -50%);
  transition: transform 180ms ease;
}

.dev-panel.is-open {
  transform: translate(0, -50%);
}

.dev-panel__heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 1.25rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
}

.dev-panel__close {
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font: inherit;
  font-size: 0.64rem;
  letter-spacing: 0.12em;
}

.dev-panel__section {
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.dev-panel__section + .dev-panel__section {
  margin-top: 1rem;
}

.dev-panel__section-title {
  margin: 0 0 0.7rem;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.61rem;
  letter-spacing: 0.14em;
}

.dev-panel__options {
  display: grid;
  gap: 0.55rem;
}

.dev-panel__option {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  cursor: pointer;
  text-transform: uppercase;
}

.dev-panel__option:has(input:disabled) {
  color: rgba(255, 255, 255, 0.42);
  cursor: not-allowed;
}

.dev-panel input {
  accent-color: #f34848;
}

.dev-panel__text-input {
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.6rem;
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: 0;
  background: #0a0b0b;
  color: #ffffff;
  font: inherit;
  font-size: 0.62rem;
  letter-spacing: normal;
}

.dev-panel__hint,
.dev-panel__status {
  margin: 0.6rem 0 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.58rem;
  letter-spacing: 0.02em;
}

.dev-panel__status {
  min-height: 1.45em;
  color: #ffffff;
}

@media (prefers-reduced-motion: reduce) {
  .dev-panel {
    transition: none;
  }
}