.epub-library-page {
  padding-bottom: 4rem;
}

.epub-privacy-card,
.epub-cloud-panel,
.epub-import-card,
.epub-library-panel,
.epub-reader-panel {
  border: 1px solid var(--line, #d9d4c8);
  border-radius: 1rem;
  background: var(--surface, #fffdf8);
  box-shadow: 0 12px 34px rgba(35, 30, 20, 0.06);
}

.epub-privacy-card {
  margin: 1rem 0 1.5rem;
  padding: 1rem 1.1rem;
  border-left: 4px solid #8a6a32;
}

.epub-privacy-card strong {
  display: block;
  margin-bottom: 0.3rem;
}

.epub-cloud-panel {
  margin: 0 0 1.5rem;
  overflow: hidden;
}

.epub-cloud-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.epub-cloud-status {
  flex: 0 1 22rem;
  text-align: right;
}

.epub-cloud-signed-out,
.epub-cloud-signed-in {
  padding: 1rem 1.1rem 1.1rem;
}

.epub-cloud-signed-out p {
  margin-top: 0;
}

.epub-cloud-account-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

.epub-cloud-account-row strong,
.epub-cloud-account-row span {
  display: inline;
}

.epub-cloud-account-row span {
  color: #6f675a;
  font-size: 0.9rem;
}

.epub-cloud-upload {
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.9rem 1rem;
  border: 1px dashed #a99572;
  border-radius: 0.75rem;
  background: #fbf7ee;
  cursor: pointer;
}

.epub-cloud-upload span,
.epub-cloud-upload strong,
.epub-cloud-upload small {
  display: block;
}

.epub-cloud-upload small {
  margin-top: 0.2rem;
  color: #6f675a;
}

.epub-cloud-upload input[type="file"] {
  max-width: 15rem;
}

.epub-cloud-books {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.epub-cloud-book {
  display: grid;
  gap: 0.7rem;
  padding: 0.85rem;
  border: 1px solid #ded7c8;
  border-radius: 0.75rem;
  background: #fff;
}

.epub-cloud-book strong,
.epub-cloud-book span,
.epub-cloud-book small {
  display: block;
}

.epub-cloud-book span,
.epub-cloud-book small {
  margin-top: 0.18rem;
  color: #746b5d;
}

.epub-cloud-book small {
  font-size: 0.82rem;
}

.epub-cloud-bookmarks {
  margin-top: 1.15rem;
  padding: 0.95rem;
  border: 1px solid #d8d0c1;
  border-radius: 0.75rem;
  background: #fbfaf6;
}

.epub-cloud-bookmark-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.epub-cloud-bookmark-head h3,
.epub-cloud-bookmark-head p {
  margin: 0;
}

.epub-cloud-bookmark-head p,
.epub-cloud-bookmark-hint {
  color: #6f675a;
}

.epub-cloud-bookmark-head p {
  margin-top: 0.2rem;
}

.epub-cloud-bookmark-create {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.epub-cloud-bookmark-create input {
  min-height: 2.45rem;
  min-width: min(18rem, 100%);
  padding: 0.5rem 0.65rem;
  border: 1px solid #cfc6b6;
  border-radius: 0.55rem;
  background: #fff;
}

.epub-cloud-bookmark-hint {
  margin: 0.7rem 0;
  font-size: 0.9rem;
}

.epub-cloud-bookmark-list {
  display: grid;
  gap: 0.6rem;
}

.epub-cloud-bookmark {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  align-items: center;
  padding: 0.7rem;
  border: 1px solid #e2dccf;
  border-radius: 0.65rem;
  background: #fff;
}

.epub-cloud-bookmark strong,
.epub-cloud-bookmark small {
  display: block;
}

.epub-cloud-bookmark small {
  margin-top: 0.15rem;
  color: #746b5d;
}

.epub-cloud-danger {
  margin-top: 1.15rem;
  padding: 0.8rem;
  border: 1px solid #e6c7c1;
  border-radius: 0.7rem;
  background: #fff8f6;
}

.epub-cloud-danger summary {
  cursor: pointer;
  font-weight: 700;
  color: #7d2d23;
}

.epub-cloud-danger p {
  color: #6f514b;
}

.epub-import-card {
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.epub-drop-zone {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 11rem;
  padding: 1.5rem;
  border: 2px dashed #b8aa8d;
  border-radius: 0.9rem;
  background: #fbf7ee;
  text-align: center;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.epub-drop-zone.is-dragging {
  border-color: #765522;
  background: #f4ead5;
  transform: translateY(-2px);
}

.epub-drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.epub-drop-zone strong,
.epub-drop-zone span {
  pointer-events: none;
}

.epub-drop-zone strong {
  font-size: 1.15rem;
}

.epub-drop-zone span {
  margin-top: 0.35rem;
  color: #6f675a;
}

.epub-status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 0.9rem;
}

.epub-status,
.epub-error {
  margin: 0;
}

.epub-status {
  color: #5d574c;
}

.epub-error {
  padding: 0.65rem 0.8rem;
  border-radius: 0.6rem;
  background: #fff0ed;
  color: #8a241a;
  border: 1px solid #efc1ba;
}

.epub-app-grid {
  display: grid;
  grid-template-columns: minmax(15rem, 0.32fr) minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.epub-library-panel,
.epub-reader-panel {
  overflow: hidden;
}

.epub-panel-head {
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--line, #d9d4c8);
  background: #f8f4eb;
}

.epub-panel-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.epub-panel-title-row .button {
  flex: 0 0 auto;
  padding: 0.45rem 0.65rem;
  font-size: 0.84rem;
}

.epub-panel-title-row .button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.epub-panel-head h2,
.epub-panel-head p {
  margin: 0;
}

.epub-panel-head p {
  margin-top: 0.35rem;
  color: #6f675a;
  font-size: 0.92rem;
}

.epub-library-list {
  display: grid;
  gap: 0.7rem;
  padding: 0.9rem;
  max-height: 65vh;
  overflow: auto;
}

.epub-library-empty,
.epub-reader-empty {
  padding: 1.25rem;
  color: #6f675a;
}

.epub-local-book {
  display: grid;
  gap: 0.65rem;
  padding: 0.8rem;
  border: 1px solid #ded7c8;
  border-radius: 0.75rem;
  background: #fff;
}

.epub-local-book strong,
.epub-local-book span {
  display: block;
}

.epub-local-book span {
  margin-top: 0.2rem;
  color: #746b5d;
  font-size: 0.88rem;
}

.epub-local-book-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.epub-local-book-actions .button {
  padding: 0.45rem 0.65rem;
  font-size: 0.86rem;
}

.epub-reader-shell[hidden],
.epub-reader-empty[hidden],
.epub-cloud-bookmarks[hidden],
.epub-error[hidden],
.epub-library-empty[hidden],
button[hidden] {
  display: none !important;
}

.epub-reader-header {
  display: grid;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--line, #d9d4c8);
}

.epub-reader-title-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.epub-reader-title-row h2,
.epub-reader-title-row p {
  margin: 0;
}

.epub-reader-title-row p {
  margin-top: 0.25rem;
  color: #6f675a;
}

.epub-reader-actions,
.epub-reader-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
}

.epub-reader-controls select,
.epub-reader-controls button {
  min-height: 2.45rem;
}

.epub-reader-controls select {
  max-width: min(24rem, 100%);
  padding: 0.5rem 0.65rem;
  border: 1px solid #cfc6b6;
  border-radius: 0.55rem;
  background: #fff;
}

.epub-font-group {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.3rem;
  border: 1px solid #d8d0c1;
  border-radius: 0.6rem;
  background: #fff;
}

.epub-font-group button {
  min-width: 2.4rem;
}

.epub-font-value {
  min-width: 3.1rem;
  text-align: center;
  color: #5e574b;
  font-size: 0.9rem;
}

.epub-location {
  margin-left: auto;
  color: #6f675a;
  font-size: 0.9rem;
}

.epub-viewer {
  height: 68vh;
  min-height: 32rem;
  background: #fbfaf6;
}

.epub-viewer iframe {
  border: 0;
}

.epub-reader-footnote {
  margin: 0;
  padding: 0.75rem 1.1rem 1rem;
  color: #6f675a;
  font-size: 0.86rem;
  border-top: 1px solid var(--line, #d9d4c8);
}

@media (max-width: 900px) {
  .epub-app-grid {
    grid-template-columns: 1fr;
  }

  .epub-library-list {
    max-height: 18rem;
  }

  .epub-viewer {
    height: 64vh;
    min-height: 28rem;
  }
}

@media (max-width: 640px) {
  .epub-import-card,
  .epub-reader-header,
  .epub-panel-head,
  .epub-cloud-signed-out,
  .epub-cloud-signed-in {
    padding: 0.85rem;
  }

  .epub-reader-title-row,
  .epub-cloud-head,
  .epub-cloud-account-row,
  .epub-cloud-upload,
  .epub-cloud-bookmark-head,
  .epub-cloud-bookmark {
    display: grid;
  }

  .epub-cloud-status {
    text-align: left;
  }

  .epub-cloud-upload input[type="file"] {
    max-width: 100%;
    width: 100%;
  }

  .epub-reader-actions,
  .epub-reader-controls {
    align-items: stretch;
  }

  .epub-reader-controls > select,
  .epub-reader-controls > .button {
    width: 100%;
  }

  .epub-font-group {
    width: 100%;
    justify-content: center;
  }

  .epub-location {
    width: 100%;
    margin-left: 0;
  }

  .epub-viewer {
    height: 61vh;
    min-height: 25rem;
  }
}