/*
 * The v2 immersive reader. Always full-page, no scroll mode toggle, no
 * visible prev/next arrows — pages turn on wheel scroll, swipe, or the
 * arrow keys (see js/paginate.js), and a compact top nav carries the page
 * jump box and the bookmark tab. Reuses bookshelf.css's :root tokens for
 * the palette so it matches the shelf exactly.
 */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body.reader-page {
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  font-family: var(--sans);
  color: var(--text-light);
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(var(--accent-rgb), 0.08), transparent 60%),
    radial-gradient(ellipse 50% 35% at 85% 30%, rgba(var(--sky-rgb), 0.05), transparent 60%),
    linear-gradient(180deg, var(--bg-base) 0%, var(--bg-deep) 100%);
  /* Page-body text size, picked from the FAB's text-size menu (js/fontsize.js)
     and persisted in localStorage. "Large" deliberately jumps by more than
     a single step so the option is worth picking. */
  --reader-font-size: 1rem;
}

body.reader-page.font-size-large {
  --reader-font-size: 1.3rem;
}

/* ---------- Floating nav ---------- */
/* Both nav clusters live together at top-right, the FAB sitting right
   before the chapter/page navigator, so the top-left corner stays clear
   and nothing competes with the chapter dropdown for space. */
.reader-topbar {
  position: fixed;
  top: 0.9rem;
  right: 0.9rem;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.float-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem;
  border-radius: 999px;
  background: var(--panel-bg);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border: 1px solid var(--glass-border);
  box-shadow: 0 10px 30px rgba(var(--ink-rgb), 0.4);
  /* Stops an oversized intrinsic width from a child (see .chapter-select)
     from bubbling up through this nested flex context too. */
  min-width: 0;
}

.float-nav[hidden] { display: none; }

/* ---------- FAB speed dial (home + contact, expandable) ----------
   A single rounded compass FAB replaces two always-on buttons. Tapping it
   expands a row of actions to its left, using the open space toward the
   center of the page rather than stacking under the button. Add future
   actions inside #fabActions and they'll fall in line automatically. */
.fab-nav {
  gap: 0;
  padding: 0;
  background: none;
  border: none;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.fab-main {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--panel-bg);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 10px 30px rgba(var(--ink-rgb), 0.4);
  color: var(--text-light);
  font-family: inherit;
  cursor: pointer;
  flex: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.fab-main:hover { background: var(--glass-faint); }

.fab-icon { width: 1.15rem; height: 1.15rem; transition: transform 0.3s ease; }

.fab-nav.is-open .fab-main {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
}

.fab-nav.is-open .fab-icon { transform: rotate(45deg); }

.fab-actions {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  max-width: 0;
  margin-right: 0.5rem;
  overflow: hidden;
  border-radius: 999px;
  background: var(--panel-bg);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border: 1px solid transparent;
  box-shadow: none;
  opacity: 0;
  pointer-events: none;
  transition: max-width 0.28s ease, opacity 0.2s ease, padding 0.28s ease,
    border-color 0.28s ease, box-shadow 0.28s ease;
}

.fab-nav.is-open .fab-actions {
  max-width: 8rem;
  opacity: 1;
  padding: 0.35rem;
  border-color: var(--glass-border);
  box-shadow: 0 10px 30px rgba(var(--ink-rgb), 0.4);
  pointer-events: auto;
  /* Once expanded, let the mail/font-size dropdown panels (position:
     absolute children of buttons in here) render outside this row instead
     of being clipped by the overflow:hidden used for the collapse animation. */
  overflow: visible;
}

.fab-action { flex: none; }

.float-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  border: none;
  background: none;
  color: var(--text-light);
  font-family: inherit;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.float-btn:hover { background: var(--glass-faint); }
.float-btn svg { width: 1rem; height: 1rem; }

.float-btn.is-bookmarked-here svg {
  fill: var(--accent-2);
  stroke: var(--accent-2);
}

.chapter-select {
  /* A fixed width, not max-width: browsers size a <select>'s intrinsic
     width off its widest *option* text, ignoring this element's own
     overflow/ellipsis — so a long chapter title silently demanded more
     layout space than it ever visibly showed, pushing the nav to wrap.
     min-width: 0 overrides the flex-item default (min-width: auto),
     which otherwise floors the box back at that same intrinsic size. */
  width: 170px;
  min-width: 0;
  flex-shrink: 0;
  background: transparent;
  color: var(--text-light);
  border: none;
  border-radius: 999px;
  padding: 0.4rem 0.7rem;
  font-size: 0.8rem;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color-scheme: dark;
}

.chapter-select option {
  background: var(--bg-deep);
  color: var(--text-light);
}

.chapter-select[hidden] { display: none; }

/* ---------- Page-number jump ---------- */
.page-jump {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 0 0.3rem;
  white-space: nowrap;
}

.page-jump[hidden] { display: none; }

.page-jump-input {
  width: 2.6rem;
  background: var(--glass-faint);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-light);
  text-align: center;
  font-family: inherit;
  font-size: 0.82rem;
  padding: 0.32rem 0.1rem;
}

.page-jump-input:focus {
  outline: none;
  border-color: var(--accent);
}

/* ---------- Mail tab: floating, expands to the mail-me menu ---------- */
.mail-tab {
  position: relative;
}

.mail-tab.is-open .float-btn {
  background: var(--glass-faint);
  color: var(--accent);
}

/* .mail-panel itself is styled in bookshelf.css (shared with index.html);
   this only repositions it to hang off the reader's nav pill instead of
   the shelf header. */
.mail-tab .mail-panel {
  top: calc(100% + 0.7rem);
  left: 0;
  right: auto;
}

/* ---------- Zoom controls: two plain buttons next to the bookmark tab ----------
   Same normal/large text-size toggle js/fontsize.js always had, just
   triggered directly instead of picked from a dropdown menu. */
.zoom-controls {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.zoom-btn:disabled {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}

/* ---------- Bookmark tab: floating, expands to a small panel ---------- */
.bookmark-tab {
  position: relative;
}

.bookmark-count {
  position: absolute;
  top: 0.05rem;
  right: 0.05rem;
  min-width: 1rem;
  height: 1rem;
  padding: 0 0.25rem;
  border-radius: 999px;
  background: var(--accent-2);
  color: var(--accent-ink);
  font-size: 0.6rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.bookmark-count[hidden] { display: none; }

.bookmark-panel {
  position: absolute;
  top: calc(100% + 0.7rem);
  right: 0;
  width: 260px;
  max-width: calc(100vw - 1.8rem);
  /* Floats directly over page text here (unlike the shelf's detail panel,
     which sits over a plain backdrop), so it needs a near-opaque backing —
     panel-bg's usual 0.6 alpha let the title underneath bleed through the
     blur and made "Add this page" illegible against it. */
  background: rgba(var(--panel-rgb), 0.97);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(var(--ink-rgb), 0.6);
  padding: 0.8rem;
  z-index: 110;
  animation: bookmarkPanelIn 0.2s ease;
}

.bookmark-panel[hidden] { display: none; }

@keyframes bookmarkPanelIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.bookmark-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.bookmark-panel-head span {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.bookmark-add {
  appearance: none;
  border: none;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease;
}

.bookmark-add:hover:not(:disabled) {
  background: var(--accent);
  color: var(--accent-ink);
}

.bookmark-add:disabled {
  opacity: 0.5;
  cursor: default;
}

.bookmark-list {
  list-style: none;
  margin: 0 0 0.4rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-height: 240px;
  overflow-y: auto;
}

.bookmark-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.bookmark-item-link {
  flex: 1;
  display: block;
  text-align: left;
  background: var(--glass-faint);
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 0.5rem 0.6rem;
  color: var(--text-light);
  font-size: 0.78rem;
  font-family: inherit;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bookmark-item-link:hover { border-color: var(--accent); }
.bookmark-item-link.is-current { border-color: var(--accent-2); }

.bookmark-item-remove {
  appearance: none;
  border: none;
  background: none;
  color: var(--text-muted);
  flex: 0 0 auto;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}

.bookmark-item-remove:hover {
  background: rgba(var(--ink-rgb), 0.35);
  color: var(--text-light);
}

.bookmark-empty {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  padding: 0.5rem 0 0.1rem;
}

.bookmark-empty[hidden] { display: none; }

/* ---------- Reader viewport: compact fixed header + paginated body ---------- */
.reader-viewport {
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
}

.reader-fixed-header {
  flex-shrink: 0;
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  padding: clamp(2.8rem, 8vh, 3.8rem) 1.5rem 0.3rem;
  text-align: left;
}

.reader-fixed-header .eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.2rem;
}

.reader-fixed-header h1 {
  font-family: var(--serif-title);
  font-weight: 700;
  font-style: italic;
  font-size: clamp(1.05rem, 2.6vh, 1.5rem);
  line-height: 1.2;
  margin: 0.15rem 0 0.3rem;
  color: var(--text-light);
}

.reader-meta {
  color: var(--text-muted);
  font-size: 0.76rem;
  margin: 0 0 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--glass-border);
}

.reader-viewport--poem .reader-fixed-header,
.reader-viewport--poem .pager {
  max-width: 640px;
}

/* ---------- Pager: the paginated, swipe/scroll-turned body ---------- */
.pager {
  position: relative;
  flex: 1;
  min-height: 0;
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  padding: 0.2rem 1.6rem 1.6rem;
}

.pager-viewport {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
}

.pager-track {
  display: flex;
  width: 100%;
  height: 100%;
  will-change: transform;
}

.pager-page {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  overflow: hidden;
  box-sizing: border-box;
  line-height: 1.55;
}

/* ---------- Body typography ----------
   Sized off --reader-font-size (set by js/fontsize.js from the FAB's text-size
   picker) rather than a fixed rem, so every rule below that sizes itself in
   em inherits the chosen scale. Headings/lede/table/scene-break font-sizes
   are em (not rem) for the same reason — they need to track this element's
   own computed size, not the page root's. */
.reader-body,
.pager-page {
  font-size: var(--reader-font-size, 1rem);
}

.pager-page h2 {
  font-family: var(--serif);
  font-size: 1.25em;
  margin: 0.9rem 0 0.5rem;
  color: var(--text-light);
}

.pager-page h3 {
  font-family: var(--serif);
  font-size: 1.05em;
  margin: 0.8rem 0 0.4rem;
  color: var(--text-light);
}

.pager-page > h2:first-child,
.pager-page > h3:first-child {
  margin-top: 0;
}

.pager-page p {
  margin: 0 0 0.85rem;
  color: var(--text-light);
  text-align: justify;
  text-justify: inter-word;
}

.pager-page p.lede {
  font-size: 1.1em;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.pager-page ul,
.pager-page ol {
  margin: 0 0 0.85rem 1.3rem;
  color: var(--text-light);
}

.pager-page li {
  margin-bottom: 0.3rem;
  text-align: justify;
  text-justify: inter-word;
}

.pager-page ol li { list-style: decimal; }
.pager-page ul li { list-style: disc; }

.pager-page blockquote {
  margin: 1rem 0;
  padding: 0.8rem 1.1rem;
  text-align: justify;
  text-justify: inter-word;
  border-left: 3px solid var(--accent);
  background: var(--glass-faint);
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: var(--text-muted);
}

.pager-page table {
  width: 100%;
  margin: 1rem 0;
  border-collapse: collapse;
  font-size: 0.92em;
}

.pager-page th,
.pager-page td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--glass-border);
  color: var(--text-light);
}

.pager-page th {
  color: var(--text-muted);
  font-weight: 600;
  border-bottom: 2px solid var(--accent);
}

.pager-page .scene-break {
  text-align: center;
  color: var(--accent);
  letter-spacing: 0.3em;
  margin: 1.2rem 0;
  font-size: 0.9em;
}

.pager-page .status-marker {
  text-align: center;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin: 2rem 0 0.5rem;
  font-size: 0.85em;
  font-style: italic;
}

.pager-page .poem-stanza {
  margin-bottom: 1rem;
  color: var(--text-light);
  line-height: 1.75;
}

.pager-page p.voice-aside {
  font-style: italic;
  color: var(--text-muted);
}

figure.illustration {
  margin: 1rem 0;
}

figure.illustration img {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  display: block;
}

figure.illustration figcaption {
  margin-top: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  font-style: italic;
}

/* Immersive pages have a fixed height, so an illustration can't be allowed
   to grow past what a lone page can hold — cap it so it's always fittable. */
.pager-page figure.illustration img {
  max-height: 55vh;
  object-fit: contain;
}

/* ---------- Loading skeleton ---------- */
.pager-loading-skeleton {
  width: 100%;
  height: 100%;
}

.skeleton-card {
  border-radius: 14px;
  background: linear-gradient(
    100deg,
    var(--glass-faint) 30%,
    var(--glass-soft) 50%,
    var(--glass-faint) 70%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.4s ease-in-out infinite;
}

@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .reader-topbar { top: 0.6rem; right: 0.6rem; gap: 0.35rem; }
  .float-nav { padding: 0.3rem; gap: 0.25rem; }
  .float-btn { width: 2rem; height: 2rem; }
  .fab-nav { padding: 0; }
  .fab-main { width: 2.3rem; height: 2.3rem; }
  .fab-actions { margin-right: 0.35rem; }
  .fab-nav.is-open .fab-actions { max-width: 6rem; }
  .chapter-select { width: 90px; font-size: 0.72rem; padding: 0.35rem 0.5rem; }
  .page-jump { font-size: 0.7rem; }
  .page-jump-input { width: 2.2rem; font-size: 0.75rem; }
  /* Clears the floating nav pill (0.6rem top offset + ~2.6rem pill height)
     with a visible gap instead of the title crowding right under it. */
  .reader-fixed-header { padding: 3.6rem 1rem 0.3rem; }
  .pager { padding: 0.2rem 1.1rem 1.2rem; }
  .bookmark-panel { width: 220px; }
}