/*
[REF]
- HTML: #floatOverlay > .reader-command-panel, existing button IDs are preserved
- JS: renderers.toggleFloatOverlay, group expanded state, reader zoom state
- STATE: .visible / .expanded / body.is-zoomed / data-theme
- LAYER: one command panel above its dismiss backdrop
- SPLIT: LAST (replaces the earlier scattered float placement)
*/
#floatOverlay .float-backdrop,
[data-theme="light"] #floatOverlay .float-backdrop {
  background: rgb(0 0 0 / 36%);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
.reader-command-panel {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(var(--reader-controls-width), calc(100% - 2 * var(--panel-gutter) - var(--safe-left) - var(--safe-right)));
  max-height: calc(100dvh - 2 * var(--panel-gutter) - var(--safe-top) - var(--safe-bottom));
  display: flex;
  flex-direction: column;
  z-index: var(--z-float-title);
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--reader-controls-radius);
  box-shadow: 0 24px 80px rgb(0 0 0 / 30%);
  overflow-x: hidden;
  overflow-y: auto;
  pointer-events: auto;
}
.reader-command-panel .float-title {
  position: static;
  transform: none;
  width: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 6px 12px;
  padding: 16px 20px 12px;
  flex: 0 0 auto;
}
.reader-command-panel .float-title-top { justify-content: flex-start; gap: 8px; }
.reader-command-panel .float-title img { width: 116px; box-shadow: none; border-radius: 0; }
.reader-command-panel .float-version { font-size: .7rem; color: var(--muted); opacity: 1; }
.reader-command-panel h2 { margin: 0; font-size: 1rem; grid-column: 1; }
.reader-command-panel .close-btn { position: static; grid-column: 2; grid-row: 1 / 3; padding: 0; border: 0; }
.reader-command-panel #floatBookTitle {
  position: static;
  transform: none;
  width: auto;
  padding: 0;
  grid-column: 1 / -1;
  text-align: left;
  opacity: 1;
  color: var(--muted);
  font-size: .85rem;
}
.reader-command-panel .float-auth-status {
  grid-column: 1 / -1;
  justify-content: flex-start;
  margin: 0;
  padding: 0;
  background: none;
  border: 0;
  box-shadow: none;
  font-size: .75rem;
  overflow-wrap: anywhere;
}
.reader-command-panel button {
  min-height: var(--control-target-size);
  min-width: 0;
  font: inherit;
  cursor: pointer;
  color: var(--text);
}
.reader-primary-actions {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  padding: 8px 16px 16px;
  flex: 0 0 auto;
  border-bottom: 1px solid var(--border);
}
.reader-primary-actions button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 4px;
  background: var(--control-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: .8rem;
  overflow-wrap: anywhere;
  line-height: 1.25;
}
.reader-command-panel .float-buttons {
  position: static;
  z-index: auto;
  display: flex;
  flex-direction: column;
  gap: var(--reader-controls-gap);
  padding: 16px;
  min-height: min(var(--reader-controls-scroll-min-height), 40dvh);
  overflow-y: auto;
  overscroll-behavior: contain;
  pointer-events: auto;
  scrollbar-width: thin;
}
.reader-command-panel .float-main-menu {
  position: static;
  transform: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--reader-controls-gap);
  max-height: none;
  overflow: visible;
  align-items: start;
  padding: 0;
}
.reader-command-panel .float-menu-group { min-width: 0; border: 1px solid var(--border); border-radius: 12px; background: var(--control-bg); }
.reader-command-panel .float-buttons button {
  min-width: 0;
  box-shadow: none;
  background: transparent;
  font-size: .85rem;
  line-height: 1.4;
  padding: 10px 12px;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  white-space: normal;
}
.reader-command-panel .float-menu-group-header { border: 0; border-radius: 12px; width: 100%; }
.reader-command-panel .float-menu-group-items { gap: 4px; }
.reader-command-panel .float-menu-group.expanded > .float-menu-group-items {
  max-height: none;
  margin: 0;
  padding: 0 8px 8px;
}
.reader-command-panel .float-menu-group-items > button,
.reader-command-panel .float-menu-group-items > .float-menu-group > .float-menu-group-header,
.reader-command-panel .float-menu-group-items > .float-menu-group .float-menu-group-items > button {
  margin-left: 0;
  min-width: 0;
  width: 100%;
  border: 0;
  border-radius: 8px;
}
.reader-command-panel .float-right-controls {
  position: static;
  transform: none;
  align-items: center;
  display: flex;
  flex-flow: row wrap;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.reader-section-label { color: var(--muted); font-size: .8rem; margin-right: auto; }
.reader-command-panel .font-buttons { flex-direction: row; gap: 4px; }
.reader-command-panel button:disabled { opacity: .4; cursor: not-allowed; }
/* Override old theme-specific float colors so every control has the same neutral/selected/hover roles. */
#floatOverlay .reader-command-panel button:not(.bookmark-marker) {
  background: var(--control-bg);
  color: var(--text);
  border-color: var(--border);
  box-shadow: none;
}
#floatOverlay .reader-command-panel .float-menu-group-items > button,
#floatOverlay .reader-command-panel .float-menu-group-items .float-menu-group-header {
  background: transparent;
}
#floatOverlay .reader-command-panel button:not(:disabled):not(.bookmark-marker):hover {
  background: var(--control-hover);
  border-color: var(--accent);
}
#floatOverlay .reader-command-panel .float-menu-group.expanded > .float-menu-group-header {
  background: var(--selection-bg);
  color: var(--selection-text);
  box-shadow: inset 3px 0 var(--accent);
}
.reader-command-panel button:focus-visible,
.modal button:focus-visible, .modal input:focus-visible, .modal select:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}
.reader-command-panel #floatProgress {
  position: static;
  transform: none;
  width: auto;
  flex: 0 0 auto;
  padding: 12px 20px 20px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.reader-command-panel #floatProgressPercent { font-size: .8rem; margin-bottom: 12px; color: var(--muted); }
.reader-command-panel .progress-track { touch-action: none; }

/* 同じ順序・操作を保ち、狭い画面では片手で届く下側のシートにする。 */
@media (max-width: 640px) {
  .reader-command-panel {
    top: auto;
    bottom: var(--safe-bottom);
    left: var(--safe-left);
    transform: none;
    width: calc(100% - var(--safe-left) - var(--safe-right));
    max-height: calc(100dvh - var(--safe-top) - var(--safe-bottom) - var(--panel-gutter));
    border-radius: var(--reader-controls-radius) var(--reader-controls-radius) 0 0;
  }
  .reader-command-panel .float-title { padding: 12px 16px 8px; }
  .reader-primary-actions { grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 8px 12px 12px; }
  .reader-primary-actions button { flex-direction: column; gap: 4px; padding: 8px 4px; font-size: .75rem; }
  .reader-command-panel .float-main-menu { grid-template-columns: minmax(0, 1fr); }
}
/* 拡大中は読書面へのパン操作を優先し、倍率と解除だけを右上に残す。 */
body.is-zoomed .reader-command-panel {
  inset: 0;
  width: auto;
  max-height: none;
  transform: none;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
  pointer-events: none;
}
body.is-zoomed .reader-primary-actions { display: none; }
body.is-zoomed .reader-command-panel .float-buttons { overflow: visible; pointer-events: none; }
body.is-zoomed .reader-command-panel .float-right-controls {
  position: fixed;
  top: calc(var(--safe-top) + var(--panel-gutter));
  right: calc(var(--safe-right) + var(--panel-gutter));
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px;
}
body.is-zoomed .reader-section-label { display: none; }
@media (prefers-reduced-motion: reduce) {
  .reader-command-panel *, .left-menu, .modal-content { transition: none !important; }
}
/* Local SVG icons share one visual weight and remain legible in both themes. */
.reader-control-icon { width: 22px; height: 22px; flex: 0 0 auto; }
.reader-primary-actions .reader-control-icon { width: 24px; height: 24px; }
.reader-command-panel #share-log-btn { grid-column: 1 / -1; border: 1px solid var(--border); border-radius: 12px; }

/* 狭い主操作ボタンでもアイコンと説明が競合しないようにする。 */
.reader-primary-actions .float-btn-label { min-width: 0; overflow-wrap: anywhere; }
@media (min-width: 480px) and (max-height: 480px) {
  .reader-primary-actions { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .reader-command-panel .float-title-top, .reader-command-panel .float-auth-status { display: none; }
  .reader-command-panel .close-btn { grid-row: 1 / 3; }
  .reader-command-panel #floatProgress { padding: 8px 16px 14px; }
}

/* Give the seek track a touch area without enlarging its visual line or bookmark dots. */
.reader-command-panel #floatProgressPercent { margin-bottom: 0; }
.reader-command-panel #floatProgressTrack { height: var(--control-target-size); background: transparent; }
.reader-command-panel #floatProgressTrack::before {
  content: ""; position: absolute; top: 50%; left: 0; width: 100%; height: 6px;
  transform: translateY(-50%); background: var(--border); border-radius: 3px;
}
.reader-command-panel #floatProgressFill { top: calc(50% - 3px); height: 6px; }
.reader-command-panel #floatProgressThumb { top: 50%; transform: translateY(-50%); }
.reader-command-panel .bookmark-marker { min-height: 12px; min-width: 12px; }
.reader-command-panel .bookmark-marker::before { content: ""; position: absolute; inset: -16px; }
body.is-zoomed .reader-command-panel .float-title { display: none; }
body.is-zoomed #floatOverlay .float-backdrop { -webkit-backdrop-filter: none !important; }
body.is-zoomed .reader-command-panel .zoom-slider-container { min-height: var(--control-target-size); }
/* In short windows or with large UI text, let the entire panel scroll instead of clipping tools. */
@media (max-height: 480px) {
  .reader-command-panel { overflow-y: auto; }
  .reader-command-panel .float-buttons { flex-shrink: 0; overflow: visible; }
}

.reader-command-panel #toggleZoom { display: flex; align-items: center; gap: 8px; font-size: .85rem; }
.reader-command-panel .float-menu-group-chevron {
  font-size: 0; width: 8px; height: 8px; border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor; transform: rotate(45deg); margin-right: 4px;
}
.reader-command-panel .float-menu-group.expanded > .float-menu-group-header .float-menu-group-chevron { transform: rotate(225deg); }

/* Horizontal zoom controls fit short landscape windows as well as portrait phones. */
body.is-zoomed .reader-command-panel .zoom-slider-container {
  position: fixed;
  top: calc(var(--safe-top) + 2 * var(--panel-gutter) + var(--control-target-size));
  right: calc(var(--safe-right) + var(--panel-gutter));
  width: min(240px, calc(100vw - 2 * var(--panel-gutter) - var(--safe-left) - var(--safe-right)));
  height: var(--control-target-size);
  transform: none;
  padding: 0 12px;
  border-radius: 12px;
}
body.is-zoomed .reader-command-panel #zoomSlider { min-height: var(--control-target-size); margin: 0; }
.reader-command-panel #floatProgressTrack { border: 0; box-shadow: none; }

/*
[REF]
- HTML: app.js creates .reading-log-share-backdrop > .reading-log-share-dialog
- STATE: data-theme / focus-visible; shared palette, no inline fallback colors
- LAYER: --z-modal; scroll inside the dialog in short windows
*/
.reading-log-share-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(var(--panel-gutter), var(--safe-top)) max(var(--panel-gutter), var(--safe-right))
    max(var(--panel-gutter), var(--safe-bottom)) max(var(--panel-gutter), var(--safe-left));
  background: rgb(0 0 0 / 36%);
}
.reading-log-share-dialog {
  width: min(440px, 100%);
  max-height: calc(100dvh - 2 * var(--panel-gutter) - var(--safe-top) - var(--safe-bottom));
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--reader-controls-gap);
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--reader-controls-radius);
  background: var(--card);
  color: var(--text);
  box-shadow: 0 24px 80px rgb(0 0 0 / 30%);
}
.reading-log-share-dialog h3 { margin: 0; font-size: 1rem; color: var(--text); }
.reading-log-share-dialog p { margin: 0; color: var(--muted); font-size: .85rem; line-height: 1.6; overflow-wrap: anywhere; }
.reading-log-share-dialog button {
  min-height: var(--control-target-size);
  flex-shrink: 0;
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: .9rem;
  text-align: left;
  cursor: pointer;
}
.reading-log-share-dialog .reading-log-share-primary {
  background: var(--accent-strong);
  color: var(--on-accent);
  border-color: var(--accent-strong);
  font-weight: 600;
}
.reading-log-share-dialog .reading-log-share-cancel { background: transparent; color: var(--muted); border: 0; text-align: center; }
.reading-log-share-dialog button:hover { filter: brightness(.95); }
.reading-log-share-dialog button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
@media (max-width: 640px) {
  .reading-log-share-backdrop { align-items: flex-end; }
}