/* ================================
   Collapsible Floating Reader Panel
   ================================ */

/* Toggle Button */
.reader-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background: #fff;
  border: 2px solid var(--border);
  padding: 0.5rem 0.75rem;
  font-weight: 700;
  cursor: pointer;
  z-index: 10000;
}

.reader-toggle:hover,
.reader-toggle:focus-visible {
  background: #000;
  color: #fff;
}

/* Reader Panel */
.reader-panel {
  position: fixed;
  top: 3.5rem;
  right: 1rem;
  width: 260px;
  background: #fff;
  border: 2px solid var(--border);
  padding: 0.75rem;
  z-index: 9999;
  font-size: 0.85rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

/* Hidden state */
.reader-panel[hidden] {
  display: none;
}

/* Reader Rows */
.reader-row {
  margin-bottom: 0.5rem;
}

.reader-row label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.reader-row select {
  width: 100%;
  padding: 0.25rem;
  border: 1px solid var(--border);
  background: #fafafa;
  font-size: 0.85rem;
}

/* Reader Buttons */
.reader-buttons {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
}

.reader-buttons button {
  flex: 1;
  padding: 0.35rem;
  background: #fafafa;
  border: 2px solid var(--border);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
}

.reader-buttons button:hover,
.reader-buttons button:focus-visible {
  background: #000;
  color: #fff;
}

/* Mobile */
@media (max-width: 600px) {
  .reader-panel {
    width: 90%;
    left: 0.5rem;
    right: 0.5rem;
    top: 4rem;
  }

  .reader-toggle {
    right: 0.5rem;
  }
}