/* Book detail pages — dqnamo-style content inside the site layout */
.book-detail {
  display: flex;
  flex-direction: column;
}

.book-detail__body {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: stretch;
  width: 100%;
}

/* Flatten main so sections + meta participate in body layout */
.book-detail__main {
  display: contents;
}

.book-detail__main > section[aria-label="Book overview"] {
  order: 1;
  min-width: 0;
}

.book-detail__meta {
  display: block;
  order: 2;
  min-width: 0;
  width: 100%;
}

.book-detail__main > section[aria-label="Notes and highlights"] {
  order: 3;
  min-width: 0;
}

.book-detail__meta .idx-list {
  /* Align with exp-control inset: stage border + pad + panel border + controls pad */
  box-sizing: border-box;
  padding-inline: 24px;
  width: 100%;
  max-width: none;
}

/* Sidebar (360px) + overview (692px) + notes (flex) + margins ≈ 1440px */
@media (min-width: 1440px) {
  .book-detail {
    --book-main-width: 692px;
    /* 9rem root top pad + 4rem root bottom pad + path/title above the grid (~7rem) */
    --book-detail-chrome: calc(9rem + 4rem + 7rem);
  }

  .book-detail__body {
    display: grid;
    grid-template-columns: minmax(0, var(--book-main-width)) minmax(0, 1fr);
    grid-template-rows: auto 1fr;
    column-gap: 24px;
    row-gap: 24px;
    align-items: stretch;
    min-height: calc(100vh - var(--book-detail-chrome));
  }

  .book-detail__main > section[aria-label="Book overview"] {
    grid-column: 1;
    grid-row: 1;
    order: unset;
  }

  .book-detail__meta {
    grid-column: 1;
    grid-row: 2;
    order: unset;
  }

  .book-detail__main > section[aria-label="Notes and highlights"] {
    grid-column: 2;
    grid-row: 1 / -1;
    order: unset;
    display: flex;
    flex-direction: column;
    align-self: stretch;
    height: 0;
    min-height: 100%;
    overflow: hidden;
  }

  .book-detail__main > section[aria-label="Notes and highlights"] .exp-stage,
  .book-detail__main > section[aria-label="Notes and highlights"] .exp-stage__panel,
  .book-detail__main > section[aria-label="Notes and highlights"] .exp-code {
    display: flex;
    flex: 1;
    flex-direction: column;
    min-height: 0;
  }

  .book-detail__main > section[aria-label="Notes and highlights"] .exp-code__bar {
    flex-shrink: 0;
  }

  .book-detail__main > section[aria-label="Notes and highlights"] .exp-code__body {
    flex: 1;
    min-height: 0;
    max-height: none;
    overflow-y: auto;
  }
}

.book-detail .exp-title {
  padding: 0 0 32px;
}

.book-detail .exp-path {
  margin-bottom: 8px;
}

.book-detail .exp-stage__canvas {
  position: relative;
}

.book-read-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 1;
  pointer-events: none;
}

.book-cover {
  width: 148px;
  border-radius: 6px;
  box-shadow:
    0 12px 24px rgba(0, 0, 0, 0.12),
    0 2px 6px rgba(0, 0, 0, 0.08);
  transition: transform 0.35s cubic-bezier(0.23, 1, 0.32, 1);
}

.book-cover:hover {
  transform: rotate(-2deg) scale(1.03);
}

.book-cover--placeholder {
  display: grid;
  place-items: center;
  width: 148px;
  aspect-ratio: 2 / 3;
  border-radius: 6px;
  border: 1px solid var(--gray3);
  background: var(--gray2);
  font-size: 14px;
  font-weight: 500;
  color: var(--gray9);
}

.exp-stage + .exp-stage {
  margin-top: 0;
}