/* Native reader button reset and touch activation hardening. */
.reader-canvas {
  width: 100%;
  height: 100dvh;
  position: relative;
  top: auto;
  left: auto;
  z-index: 1;
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
  appearance: none;
  -webkit-appearance: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.reader > button.reader-canvas {
  position: relative;
  top: auto;
  left: auto;
  z-index: 1;
}

/* styles.css historically targeted every direct child button. Keep that
   rule from repositioning the full-screen reader surface. */
.reader > #close {
  position: absolute;
  top: 24px;
  left: 4vw;
  z-index: 3;
  border: 0;
  background: none;
  padding: 8px;
  color: var(--ink);
  font: 10px var(--mono);
  letter-spacing: .12em;
  cursor: pointer;
}

.reader > #close:focus-visible {
  outline: 1px solid var(--ink);
  outline-offset: 5px;
}

.reader-canvas:focus-visible {
  outline: 1px solid var(--ink);
  outline-offset: -8px;
}

.reader-index {
  pointer-events: none;
}

@media (max-width: 720px) {
  .reader > #close {
    left: 15px;
    top: 14px;
  }
}