/* ==========================================================================
   LUMEN READER V2 — scoped exclusively under #view-reader / .lumen-reader
   Does not affect homepage, detail, search, or global chrome.
   ========================================================================== */

#view-reader.lumen-reader {
  --lr-bg: #080a12;
  --lr-bg-2: #0d1020;
  --lr-accent: #8b5cf6;
  --lr-accent-2: #7c3aed;
  --lr-accent-soft: #a78bfa;
  --lr-glass: rgba(12, 14, 25, 0.78);
  --lr-glass-strong: rgba(12, 14, 25, 0.94);
  --lr-border: rgba(255, 255, 255, 0.08);
  --lr-text: #f4f4f8;
  --lr-muted: rgba(244, 244, 248, 0.62);
  --lr-radius: 18px;
  --lr-header-h: 58px;
  --lr-nav-h: 64px;
  --lr-safe-top: env(safe-area-inset-top, 0px);
  --lr-safe-bottom: env(safe-area-inset-bottom, 0px);

  position: relative;
  min-height: 100dvh;
  background: linear-gradient(180deg, var(--lr-bg) 0%, var(--lr-bg-2) 100%);
  color: var(--lr-text);
  overflow-x: hidden;
  padding-bottom: calc(var(--lr-nav-h) + var(--lr-safe-bottom) + 12px);
}

/* Hide default site chrome noise while reading */
body.mode-reader #view-reader.lumen-reader ~ * { }
body.mode-reader:has(#view-reader:not(.is-hidden)) .tabs,
body.mode-reader:has(#view-reader:not(.is-hidden)) .app-header,
body.mode-reader:has(#view-reader:not(.is-hidden)) .search-bar {
  /* leave global alone — only reader paints over */
}

/* ---------- Progress ---------- */
#view-reader.lumen-reader .lumen-reader-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: calc(6px + var(--lr-safe-top)) 14px 0;
  pointer-events: none;
}

#view-reader.lumen-reader .lumen-reader-progress-track {
  flex: 1;
  height: 3px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

#view-reader.lumen-reader .lumen-reader-progress-bar,
#view-reader.lumen-reader #reader-progress-bar {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--lr-accent-2), var(--lr-accent-soft));
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.45);
  transition: width 0.12s linear;
}

#view-reader.lumen-reader .lumen-reader-progress-pct {
  font-size: 11px;
  font-weight: 600;
  color: var(--lr-muted);
  min-width: 2.4em;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

#view-reader.lumen-reader.lumen-reader--hide-progress .lumen-reader-progress {
  display: none;
}

/* ---------- Floating header ---------- */
#view-reader.lumen-reader .lumen-reader-header,
#view-reader.lumen-reader #reader-top {
  position: fixed;
  top: calc(14px + var(--lr-safe-top));
  left: 12px;
  right: 12px;
  z-index: 55;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: var(--lr-header-h);
  padding: 10px 12px;
  background: var(--lr-glass);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--lr-border);
  border-radius: var(--lr-radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.22s ease;
}

#view-reader.lumen-reader #reader-top.is-away {
  transform: translateY(calc(-120% - var(--lr-safe-top)));
  opacity: 0;
  pointer-events: none;
}

#view-reader.lumen-reader .lumen-reader-header-meta {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#view-reader.lumen-reader .lumen-reader-header-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--lr-text);
}

#view-reader.lumen-reader .lumen-reader-header-sub,
#view-reader.lumen-reader #reader-title {
  font-size: 12px;
  color: var(--lr-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#view-reader.lumen-reader .lumen-reader-icon-btn {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--lr-text);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
#view-reader.lumen-reader .lumen-reader-icon-btn:hover {
  background: rgba(139, 92, 246, 0.18);
  color: var(--lr-accent-soft);
}
#view-reader.lumen-reader .lumen-reader-icon-btn:active {
  transform: scale(0.96);
}

/* ---------- Content / pages ---------- */
#view-reader.lumen-reader .lumen-reader-content,
#view-reader.lumen-reader #reader-stage {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  padding-top: calc(var(--lr-header-h) + var(--lr-safe-top) + 28px);
  background: transparent;
}

#view-reader.lumen-reader .lumen-reader-pages,
#view-reader.lumen-reader #reader-pages {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  background: transparent;
}

#view-reader.lumen-reader .lumen-reader-pages img,
#view-reader.lumen-reader #reader-pages img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  border: none;
  border-radius: 0;
  box-shadow: none;
  background: #000;
  opacity: 0;
  animation: lumenReaderImgIn 0.2s ease forwards;
}

@keyframes lumenReaderImgIn {
  to { opacity: 1; }
}

#view-reader.lumen-reader .page-slot {
  margin: 0;
  padding: 0;
  line-height: 0;
}

#view-reader.lumen-reader .img-error,
#view-reader.lumen-reader .lumen-reader-img-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 220px;
  padding: 28px 20px;
  text-align: center;
  color: var(--lr-muted);
  background: rgba(255, 255, 255, 0.02);
}

/* Fit modes (scoped) */
body[data-reader-fit="width"] #view-reader.lumen-reader #reader-pages img {
  max-width: 100%;
}
body[data-reader-fit="comfortable"] #view-reader.lumen-reader #reader-pages img {
  max-width: min(720px, 100%);
}
body[data-reader-fit="small"] #view-reader.lumen-reader #reader-pages img {
  max-width: min(520px, 92%);
}

/* Theme surfaces */
body[data-reader-theme="dark"] #view-reader.lumen-reader {
  --lr-bg: #05060a;
  --lr-bg-2: #080a12;
}
body[data-reader-theme="light"] #view-reader.lumen-reader {
  --lr-bg: #1a1410;
  --lr-bg-2: #241c16;
  --lr-text: #f5e6d3;
  --lr-muted: rgba(245, 230, 211, 0.65);
}

/* Tap zones */
#view-reader.lumen-reader .tap-zone {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 18%;
  max-width: 96px;
  z-index: 5;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
}
#view-reader.lumen-reader .tap-zone--prev { left: 0; }
#view-reader.lumen-reader .tap-zone--next { right: 0; }
#view-reader.lumen-reader.lumen-reader--no-tap .tap-zone {
  display: none;
}

/* ---------- Settings backdrop + panel ---------- */
#view-reader.lumen-reader .lumen-reader-settings-backdrop {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 1;
  transition: opacity 0.22s ease;
}
#view-reader.lumen-reader .lumen-reader-settings-backdrop.is-hidden {
  display: none;
}

#view-reader.lumen-reader .lumen-reader-settings,
#view-reader.lumen-reader #reader-menu {
  position: fixed;
  z-index: 80;
  left: 12px;
  right: 12px;
  bottom: calc(12px + var(--lr-safe-bottom));
  max-height: min(78dvh, 640px);
  overflow: auto;
  padding: 10px 16px 20px;
  background: var(--lr-glass-strong);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--lr-border);
  border-radius: 24px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
  transform: translateY(0);
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.22s ease;
}

#view-reader.lumen-reader #reader-menu.is-hidden {
  display: none;
}

#view-reader.lumen-reader .lumen-reader-settings-handle {
  width: 40px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  margin: 4px auto 12px;
}

#view-reader.lumen-reader .lumen-reader-settings-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
#view-reader.lumen-reader .lumen-reader-settings-head h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--lr-text);
}

#view-reader.lumen-reader .lumen-reader-setting {
  margin-bottom: 16px;
}
#view-reader.lumen-reader .lumen-reader-setting-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--lr-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

#view-reader.lumen-reader .lumen-reader-seg {
  display: flex;
  gap: 6px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 12px;
}
#view-reader.lumen-reader .lumen-reader-seg-btn,
#view-reader.lumen-reader #reader-menu .seg-btn {
  flex: 1;
  border: none;
  border-radius: 10px;
  padding: 10px 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--lr-muted);
  background: transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
#view-reader.lumen-reader #reader-menu .seg-btn.is-active,
#view-reader.lumen-reader .lumen-reader-seg-btn.is-active {
  background: var(--lr-accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.35);
}

/* Toggles */
#view-reader.lumen-reader .lumen-reader-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 14px;
  color: var(--lr-text);
  cursor: pointer;
}
#view-reader.lumen-reader .lumen-reader-toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
#view-reader.lumen-reader .lumen-reader-switch {
  position: relative;
  width: 44px;
  height: 26px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  transition: background 0.2s ease;
  flex-shrink: 0;
}
#view-reader.lumen-reader .lumen-reader-switch::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s ease;
}
#view-reader.lumen-reader .lumen-reader-toggle input:checked + .lumen-reader-switch {
  background: var(--lr-accent);
}
#view-reader.lumen-reader .lumen-reader-toggle input:checked + .lumen-reader-switch::after {
  transform: translateX(18px);
}

#view-reader.lumen-reader .lumen-reader-soft-btn {
  width: 100%;
  margin-top: 14px;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--lr-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--lr-text);
  font-weight: 600;
  cursor: pointer;
}

/* Desktop floating settings */
@media (min-width: 768px) {
  #view-reader.lumen-reader .lumen-reader-settings,
  #view-reader.lumen-reader #reader-menu {
    left: auto;
    right: 24px;
    bottom: auto;
    top: calc(80px + var(--lr-safe-top));
    width: 340px;
    max-height: min(70dvh, 560px);
    border-radius: 20px;
  }
  #view-reader.lumen-reader .lumen-reader-settings-handle {
    display: none;
  }
  #view-reader.lumen-reader .lumen-reader-header,
  #view-reader.lumen-reader #reader-top {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    width: min(720px, calc(100% - 48px));
  }
  #view-reader.lumen-reader #reader-top.is-away {
    transform: translateX(-50%) translateY(calc(-120% - var(--lr-safe-top)));
  }
}

/* ---------- Bottom nav ---------- */
#view-reader.lumen-reader .lumen-reader-nav {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(10px + var(--lr-safe-bottom));
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 8px;
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.22s ease;
}

body.ui-hidden #view-reader.lumen-reader .lumen-reader-nav {
  transform: translateY(140%);
  opacity: 0;
  pointer-events: none;
}

#view-reader.lumen-reader .lumen-reader-nav-btn,
#view-reader.lumen-reader .lumen-reader-nav-center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 48px;
  padding: 10px 8px;
  border-radius: 16px;
  border: 1px solid var(--lr-border);
  background: rgba(15, 18, 30, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: var(--lr-text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
#view-reader.lumen-reader .lumen-reader-nav-center {
  background: rgba(124, 58, 237, 0.22);
  border-color: rgba(139, 92, 246, 0.35);
  color: var(--lr-accent-soft);
}
#view-reader.lumen-reader .lumen-reader-nav-label {
  display: none;
}
@media (min-width: 400px) {
  #view-reader.lumen-reader .lumen-reader-nav-label {
    display: inline;
  }
}

/* ---------- End of chapter ---------- */
#view-reader.lumen-reader .lumen-reader-end,
#view-reader.lumen-reader #reader-end {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 48px 20px 32px;
  text-align: center;
  max-width: 420px;
  margin: 0 auto;
}

#view-reader.lumen-reader .lumen-reader-chibi {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  background: radial-gradient(circle at 30% 30%, rgba(167, 139, 250, 0.35), rgba(12, 14, 25, 0.9));
  border: 1px solid rgba(139, 92, 246, 0.35);
  box-shadow: 0 0 32px rgba(124, 58, 237, 0.25);
  margin-bottom: 8px;
}

#view-reader.lumen-reader .lumen-reader-end-title {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  color: var(--lr-text);
}
#view-reader.lumen-reader .lumen-reader-end-sub {
  margin: 0 0 12px;
  color: var(--lr-muted);
  font-size: 14px;
}

#view-reader.lumen-reader .lumen-reader-btn-primary,
#view-reader.lumen-reader #reader-end .btn-primary {
  width: 100%;
  max-width: 320px;
  padding: 14px 18px;
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--lr-accent-2), var(--lr-accent));
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.35);
}
#view-reader.lumen-reader .lumen-reader-btn-ghost,
#view-reader.lumen-reader #reader-end .btn:not(.btn-primary) {
  width: 100%;
  max-width: 320px;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid var(--lr-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--lr-text);
  font-weight: 600;
  cursor: pointer;
}

/* ---------- Loading overlay when in reader (optional polish) ---------- */
body.mode-reader #loading:not(.is-hidden) {
  background: rgba(8, 10, 18, 0.72);
  backdrop-filter: blur(8px);
}

/* Override legacy reader chrome inside v2 only */
#view-reader.lumen-reader .reader-progress { display: none; }
#view-reader.lumen-reader .btn.btn-ghost {
  /* legacy buttons inside reader header replaced */
}

/* Small phones */
@media (max-width: 360px) {
  #view-reader.lumen-reader .lumen-reader-header,
  #view-reader.lumen-reader #reader-top {
    left: 8px;
    right: 8px;
    padding: 8px 10px;
  }
  #view-reader.lumen-reader .lumen-reader-nav {
    left: 8px;
    right: 8px;
  }
  #view-reader.lumen-reader .lumen-reader-header-title {
    font-size: 13px;
  }
}

/* Desktop content width */
@media (min-width: 1024px) {
  #view-reader.lumen-reader .lumen-reader-content,
  #view-reader.lumen-reader #reader-stage {
    max-width: 900px;
  }
}

/* ===== Reader V2 polish (mockup parity) ===== */

#view-reader.lumen-reader .lumen-reader-header-cover {
  width: 36px;
  height: 48px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: none;
}
#view-reader.lumen-reader .lumen-reader-header-cover.is-on {
  display: block;
}

/* Themes scoped to reader only */
#view-reader.lumen-reader[data-lr-theme="amoled"] {
  --lr-bg: #000000;
  --lr-bg-2: #050508;
  --lr-text: #f5f5f5;
}
#view-reader.lumen-reader[data-lr-theme="dark"] {
  --lr-bg: #080a12;
  --lr-bg-2: #0d1020;
}
#view-reader.lumen-reader[data-lr-theme="sepia"] {
  --lr-bg: #1a1410;
  --lr-bg-2: #241c14;
  --lr-text: #f0e6d2;
  --lr-muted: rgba(240, 230, 210, 0.65);
}

/* Width slider */
#view-reader.lumen-reader .lumen-reader-width-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
#view-reader.lumen-reader .lumen-reader-width-ico {
  color: var(--lr-muted);
  font-size: 12px;
  line-height: 1;
}
#view-reader.lumen-reader .lumen-reader-width-range {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  outline: none;
}
#view-reader.lumen-reader .lumen-reader-width-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--lr-accent);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.25);
  cursor: pointer;
}

/* Page images — immersive, no cards */
#view-reader.lumen-reader .page-slot {
  margin: 0;
  padding: 0;
  line-height: 0;
  background: transparent;
}
#view-reader.lumen-reader .page-slot img,
#view-reader.lumen-reader .lumen-reader-pages img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  border: none;
  border-radius: 0;
  box-shadow: none;
  background: #0a0c14;
  opacity: 0;
  transition: opacity 0.2s ease;
}
#view-reader.lumen-reader .page-slot img.is-loaded,
#view-reader.lumen-reader .lumen-reader-pages img.is-loaded {
  opacity: 1;
}
#view-reader.lumen-reader .page-slot img.img-pending {
  min-height: 120px;
  opacity: 0.15;
}

/* Fit modes via CSS variables on content */
#view-reader.lumen-reader .lumen-reader-content {
  --lr-img-width: 100%;
}
#view-reader.lumen-reader .lumen-reader-pages {
  width: var(--lr-img-width);
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
}
#view-reader.lumen-reader[data-lr-fit="comfortable"] .lumen-reader-pages {
  width: min(100%, 720px);
}
#view-reader.lumen-reader[data-lr-fit="small"] .lumen-reader-pages {
  width: min(100%, 560px);
}

/* Friendly image error */
#view-reader.lumen-reader .img-error,
#view-reader.lumen-reader .lumen-reader-img-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 220px;
  margin: 16px;
  padding: 24px 16px;
  border-radius: 20px;
  border: 1px solid var(--lr-border);
  background: rgba(12, 14, 25, 0.65);
  color: var(--lr-muted);
  text-align: center;
  font-size: 14px;
  line-height: 1.45;
}
#view-reader.lumen-reader .img-error strong {
  color: var(--lr-text);
  font-size: 16px;
}
#view-reader.lumen-reader .img-error button {
  margin-top: 6px;
  padding: 12px 22px;
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--lr-accent-2), var(--lr-accent));
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.35);
}

/* End of chapter */
#view-reader.lumen-reader .lumen-reader-end {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  padding: 48px 20px 32px;
  max-width: 420px;
  margin: 0 auto;
}
#view-reader.lumen-reader .lumen-reader-chibi {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 40% 35%, rgba(167, 139, 250, 0.35), rgba(12, 14, 25, 0.9));
  border: 1px solid rgba(139, 92, 246, 0.35);
  box-shadow: 0 0 40px rgba(139, 92, 246, 0.25);
  position: relative;
  font-size: 36px;
}
#view-reader.lumen-reader .lumen-reader-chibi-spark {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 14px;
  color: var(--lr-accent-soft);
}
#view-reader.lumen-reader .lumen-reader-end-title {
  margin: 8px 0 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--lr-text);
}
#view-reader.lumen-reader .lumen-reader-end-sub {
  margin: 0 0 12px;
  color: var(--lr-muted);
  font-size: 14px;
}
#view-reader.lumen-reader .lumen-reader-btn-primary {
  width: 100%;
  max-width: 320px;
  padding: 14px 18px;
  border: none;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--lr-accent-2), var(--lr-accent));
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  box-shadow: 0 10px 28px rgba(124, 58, 237, 0.4);
}
#view-reader.lumen-reader .lumen-reader-btn-ghost {
  width: 100%;
  max-width: 320px;
  padding: 12px 18px;
  border-radius: 16px;
  border: 1px solid var(--lr-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--lr-text);
  font-weight: 600;
  cursor: pointer;
}

/* Bottom nav glass */
#view-reader.lumen-reader .lumen-reader-nav {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 8px;
  padding: 10px;
  background: rgba(15, 18, 30, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--lr-border);
  border-radius: 18px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  transition: transform 0.28s ease, opacity 0.22s ease;
}
body.ui-hidden #view-reader.lumen-reader .lumen-reader-nav {
  transform: translateY(calc(120% + var(--lr-safe-bottom)));
  opacity: 0;
  pointer-events: none;
}
#view-reader.lumen-reader .lumen-reader-nav-btn,
#view-reader.lumen-reader .lumen-reader-nav-center {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 10px 8px;
  border: none;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--lr-text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
#view-reader.lumen-reader .lumen-reader-nav-center {
  background: rgba(139, 92, 246, 0.16);
  color: var(--lr-accent-soft);
}

/* Loading overlay when body.mode-reader */
body.mode-reader #loading:not(.is-hidden) {
  background: rgba(8, 10, 18, 0.88);
  backdrop-filter: blur(8px);
}
body.mode-reader #loading .spinner {
  width: 42px;
  height: 42px;
  border: 3px solid rgba(139, 92, 246, 0.2);
  border-top-color: var(--lr-accent, #8b5cf6);
  border-radius: 50%;
  animation: lr-spin 0.8s linear infinite;
}
@keyframes lr-spin {
  to { transform: rotate(360deg); }
}

@media (min-width: 768px) {
  #view-reader.lumen-reader .lumen-reader-content {
    max-width: 900px;
  }
}