.panphy-fullscreen-button,
[data-panphy-fullscreen] {
  font-size: 0 !important;
}

.panphy-fullscreen-button,
button.panphy-fullscreen-button {
  --panphy-fs-size: 44px;
  --panphy-fs-color-light: var(--brand-primary, #c2410c);
  --panphy-fs-color-dark: var(--brand-accent, #0d9488);
  --panphy-fs-hover-light: color-mix(in srgb, var(--brand-primary, #c2410c), transparent 92%);
  --panphy-fs-hover-dark: color-mix(in srgb, var(--brand-accent, #0d9488), transparent 92%);
  --panphy-fs-focus: color-mix(in srgb, var(--brand-accent, #0d9488), transparent 62%);

  width: var(--panphy-fs-size) !important;
  height: var(--panphy-fs-size) !important;
  min-width: var(--panphy-fs-size) !important;
  min-height: var(--panphy-fs-size) !important;
  display: inline-grid !important;
  place-items: center !important;
  flex: 0 0 auto !important;
  padding: 0 !important;
  border: 1px solid transparent !important;
  border-radius: 12px !important;
  background: transparent !important;
  color: var(--panphy-fs-color-light) !important;
  box-shadow: none !important;
  cursor: pointer;
  font-size: 0 !important;
  line-height: 1 !important;
  overflow: visible;
  text-decoration: none;
  touch-action: manipulation;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease !important;
}

[data-theme="dark"] .panphy-fullscreen-button,
.panphy-fullscreen-button.is-dark {
  color: var(--panphy-fs-color-dark) !important;
}

.panphy-fullscreen-button:hover,
button.panphy-fullscreen-button:hover {
  background: var(--panphy-fs-hover-light) !important;
  border-color: transparent !important;
  transform: translateY(-0.5px) !important;
}

[data-theme="dark"] .panphy-fullscreen-button:hover,
.panphy-fullscreen-button.is-dark:hover {
  background: var(--panphy-fs-hover-dark) !important;
}

.panphy-fullscreen-button:focus-visible,
button.panphy-fullscreen-button:focus-visible {
  outline: 3px solid var(--panphy-fs-focus) !important;
  outline-offset: 3px !important;
}

.panphy-fullscreen-button .panphy-fs-icon {
  width: 24px;
  height: 24px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.3;
  overflow: visible;
  transition: transform 0.18s ease;
}

/* Enter fullscreen hover: corners expand outward */
.panphy-fullscreen-button:not(.is-fullscreen):hover .panphy-fs-icon {
  transform: scale(1.1);
}

/* Exit fullscreen hover: corners compress inward */
.panphy-fullscreen-button.is-fullscreen:hover .panphy-fs-icon {
  transform: scale(0.9);
}

@media (prefers-reduced-motion: reduce) {
  .panphy-fullscreen-button,
  .panphy-fullscreen-button .panphy-fs-icon {
    transition-duration: 0.01ms !important;
  }

  .panphy-fullscreen-button:hover,
  .panphy-fullscreen-button:hover .panphy-fs-icon {
    transform: none !important;
  }
}