/* =========================================================
   BOOK ILLUSTRATIONS MOBILE FIX
   Fixed mobile reading mode: hides intro while reading,
   keeps the book stage stable, centers all image sizes,
   and keeps arrows inside the book frame.
   Desktop remains unchanged.
   ========================================================= */

@media (max-width: 768px) {
  html,
  body {
    width: 100% !important;
    max-width: 100% !important;
    overflow-x: hidden !important;
  }

  main {
    overflow: visible !important;
  }

  .book-illustrations-section {
    width: 100% !important;
    max-width: 100% !important;
    padding-left: 10px !important;
    padding-right: 10px !important;
    padding-top: calc(var(--header-height) + 18px) !important;
    padding-bottom: 26px !important;
    overflow: visible !important;
  }

  .book-illustrations-heading {
    width: 100% !important;
    max-width: 100% !important;
    margin-bottom: 12px !important;
  }

  .book-illustrations-heading .page-title,
  #book-illustrations-title {
    width: 100% !important;
    max-width: 100% !important;
    font-size: clamp(1.75rem, 9vw, 2.85rem) !important;
    line-height: 1 !important;
    letter-spacing: 0 !important;
    word-break: normal !important;
    overflow-wrap: normal !important;
  }

  .page-disclaimer {
    width: 100% !important;
    max-width: 100% !important;
    margin-top: 8px !important;
    font-size: 0.92rem !important;
    line-height: 1.28 !important;
    white-space: normal !important;
  }

  .book-illustrations-section:has(.book-viewer:not([hidden])) {
    padding-top: calc(var(--header-height) + 8px) !important;
  }

  .book-illustrations-section:has(.book-viewer:not([hidden])) .book-illustrations-heading {
    display: none !important;
  }

  .book-illustrations-section:has(.book-viewer:not([hidden])) .book-selection-grid {
    display: none !important;
  }

  .book-illustrations-shell,
  .book-selection-grid,
  .book-viewer {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    margin-left: auto !important;
    margin-right: auto !important;
    overflow: visible !important;
  }

  .book-selection-grid[hidden],
  .book-viewer[hidden] {
    display: none !important;
  }

  .book-selection-grid {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 14px !important;
    padding: 0 !important;
  }

  .book-select-card {
    display: grid !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    padding: 11px !important;
  }

  .book-select-image {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    overflow: visible !important;
  }

  .book-select-image img {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    object-fit: contain !important;
  }

  .book-viewer-topbar {
    position: sticky !important;
    top: var(--header-height) !important;
    z-index: 60 !important;
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 8px !important;
    width: 100% !important;
    padding: 8px 0 8px !important;
    margin-bottom: 8px !important;
    background:
      linear-gradient(180deg, rgba(3, 3, 2, 0.98), rgba(3, 3, 2, 0.86)) !important;
    backdrop-filter: blur(10px) !important;
  }

  .book-current-title {
    width: 100% !important;
  }

  .book-current-title span,
  .book-current-title strong {
    line-height: 1.15 !important;
  }

  .book-current-title strong {
    font-size: 0.95rem !important;
  }

  .open-book-wrap {
    position: relative !important;
    display: block !important;
    width: min(100%, 420px) !important;
    max-width: 100% !important;
    min-width: 0 !important;
    overflow: visible !important;
    margin: 0 auto !important;
  }

  .open-book {
    position: relative !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    min-height: 0 !important;
    padding: 7px !important;
    border-width: 1px !important;
    border-radius: 12px !important;
    overflow: visible !important;
  }

  .book-pages {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    height: clamp(350px, 58vh, 560px) !important;
    min-height: 350px !important;
    overflow: hidden !important;
    border-width: 1px !important;
    border-radius: 10px !important;
    background: rgba(3, 3, 2, 0.58) !important;
  }

  .book-page {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    height: 100% !important;
    min-height: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
  }

  .book-page-left {
    display: flex !important;
  }

  .book-page-right {
    display: none !important;
  }

  .book-illustration {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    height: 100% !important;
    min-height: 0 !important;
    margin: 0 !important;
    overflow: hidden !important;
  }

  .book-illustration img {
    display: block !important;
    flex: 1 1 auto !important;
    width: 100% !important;
    max-width: 100% !important;
    height: calc(100% - 34px) !important;
    max-height: calc(100% - 34px) !important;
    object-fit: contain !important;
    object-position: center center !important;
    background: rgba(3, 3, 2, 0.55) !important;
  }

  .book-illustration figcaption {
    flex: 0 0 34px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    height: 34px !important;
    margin: 0 !important;
    padding: 4px 8px !important;
    overflow: hidden !important;
    font-size: 0.8rem !important;
    line-height: 1.1 !important;
    white-space: nowrap !important;
    text-overflow: ellipsis !important;
  }

  .book-spine,
  .turning-page,
  .open-book::before,
  .open-book::after {
    display: none !important;
  }

  .book-edge {
    position: absolute !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    z-index: 50 !important;
    width: 38px !important;
    height: 58px !important;
    min-height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    border-radius: 999px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: rgba(0, 0, 0, 0.72) !important;
    border: 1px solid rgba(216, 183, 102, 0.95) !important;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.42) !important;
  }

  .book-edge::before {
    font-family: var(--display), Georgia, serif !important;
    font-size: 1.9rem !important;
    line-height: 1 !important;
    color: #d8b766 !important;
  }

  .book-edge-left {
    left: 7px !important;
    right: auto !important;
  }

  .book-edge-left::before {
    content: "‹";
  }

  .book-edge-right {
    right: 7px !important;
    left: auto !important;
  }

  .book-edge-right::before {
    content: "›";
  }

  .book-edge:disabled {
    opacity: 0.28 !important;
  }

  .book-reader-controls {
    display: none !important;
  }

  .book-control {
    width: 100% !important;
    min-width: 0 !important;
    min-height: 38px !important;
    padding: 9px 14px !important;
    font-size: 0.68rem !important;
  }

  .book-end-panel {
    width: 100% !important;
    max-width: 100% !important;
    padding: 18px 12px !important;
  }

  .book-end-actions {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 9px !important;
  }
}

@media (max-width: 430px) {
  .open-book-wrap {
    width: min(100%, 390px) !important;
  }

  .book-pages {
    height: clamp(340px, 57vh, 540px) !important;
    min-height: 340px !important;
  }
}

@media (max-width: 380px) {
  .open-book-wrap {
    width: min(100%, 355px) !important;
  }

  .book-pages {
    height: clamp(320px, 55vh, 500px) !important;
    min-height: 320px !important;
  }

  .book-edge {
    width: 34px !important;
    height: 52px !important;
  }

  .book-edge::before {
    font-size: 1.65rem !important;
  }
}