/* ==========================================================================
   Secure PDF reader styles.
   ========================================================================== */

.kja-reader-page {
  max-width: var(--kja-maxw);
  margin: 0 auto;
}

.kja-header--reader {
  border-bottom: none;
}

/* Scope to #kja-reader — body used to share class "kja-reader" which locked page scroll. */
#kja-reader {
  display: flex;
  flex-direction: column;
  background: var(--kja-surface);
  overflow: hidden;
  max-height: calc(100vh - 6rem);
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

.kja-reader__toolbar {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
  padding: 0.35rem 0.5rem;
  background: var(--kja-bg-2);
  border-bottom: 1px solid var(--kja-line);
  position: sticky;
  top: 0;
  z-index: 5;
}
.kja-reader__toolbar-primary,
.kja-reader__toolbar-search {
  display: contents;
}
.kja-reader__group {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.kja-reader__search {
  margin-left: auto;
  flex: 0 0 auto;
  width: max-content;
  max-width: 100%;
}
.kja-reader__search-field {
  position: relative;
  display: flex;
  align-items: center;
  width: min(15rem, 40vw);
  min-width: 120px;
}
.kja-reader__find-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.kja-reader__find-nav[hidden] {
  display: none;
}
.kja-reader__search-icon {
  position: absolute;
  left: 0.45rem;
  color: var(--kja-ink-2);
  pointer-events: none;
  z-index: 1;
}
.kja-reader__search #kja-find {
  width: 100%;
  min-width: 0;
  height: 40px;
  padding: 0 0 0 2rem;
  border: 1px solid var(--kja-line);
  background: var(--kja-bg);
  color: var(--kja-ink);
  font-family: var(--kja-font-mono);
  font-size: 0.8125rem;
}
.kja-reader__search #kja-find::-webkit-search-cancel-button,
.kja-reader__search #kja-find::-webkit-search-decoration {
  -webkit-appearance: none;
  appearance: none;
  display: none;
}
.kja-reader__search #kja-find::-ms-clear {
  display: none;
}
.kja-reader__search #kja-find:focus {
  outline: 2px solid var(--kja-ink-3);
  outline-offset: 1px;
}
.kja-reader__search-clear {
  position: absolute;
  right: 0.45rem;
  z-index: 1;
  padding: 0.15rem 0.35rem;
  border: 0;
  background: transparent;
  color: var(--kja-accent);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
}
.kja-reader__search-clear:hover {
  color: var(--kja-accent-hover);
}
.kja-reader__search-clear[hidden] {
  display: none;
}
.kja-reader__findcount {
  font-size: 0.8rem;
  color: var(--kja-ink-2);
}
.kja-reader__findcount:empty {
  display: none;
}
.kja-reader__findcount:not(:empty) {
  min-width: 3ch;
}

.kja-tool {
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.25rem;
  border: 1px solid var(--kja-line);
  background: var(--kja-surface);
  color: var(--kja-ink);
  cursor: pointer;
  font-size: 0.8125rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition:
    background var(--kja-trans),
    border-color var(--kja-trans);
}
.kja-tool:hover {
  background: var(--kja-surface-2);
  border-color: var(--kja-ink-3);
}
.kja-tool:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.kja-reader__pageinfo {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-variant-numeric: tabular-nums;
}
#kja-page-input {
  width: 3rem;
  height: 2rem;
  padding: 0 0.25rem;
  text-align: center;
  border: none;
  background: transparent;
  color: var(--kja-ink);
  font-family: var(--kja-font-mono);
  font-size: 0.8125rem;
  -moz-appearance: textfield;
  appearance: textfield;
}
#kja-page-input::-webkit-outer-spin-button,
#kja-page-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
#kja-page-input:focus {
  outline: 2px solid var(--kja-ink-3);
  outline-offset: 1px;
}
.kja-reader__pagesep {
  color: var(--kja-ink-2);
}

.kja-reader__stage {
  position: relative;
  flex: 1 1 auto;
  min-height: 50vh;
  background: var(--kja-surface-2);
  overflow: auto;
  padding: 1rem;
  outline: none;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-x pan-y;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}
.kja-reader__stage:not(.kja-reader__stage--zoomed) {
  overflow-x: hidden;
}
.kja-reader__stage--zoomed {
  overflow-x: auto;
  touch-action: pan-x pan-y;
}
.kja-reader__pages {
  position: relative;
  margin: 0 auto;
}
.kja-reader__page {
  position: absolute;
  left: 0;
  line-height: 0;
  border: 0;
  outline: 1px solid var(--kja-line);
  outline-offset: -1px;
  background: #fff;
}
.kja-reader__page .kja-reader__canvas {
  display: block;
  background: #fff;
  -webkit-user-drag: none;
  user-select: none;
}

.kja-reader__textlayer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  opacity: 1;
  line-height: 1;
  pointer-events: none;
}
.kja-reader__textlayer > span {
  color: transparent;
  position: absolute;
  white-space: pre;
  transform-origin: 0 0;
  cursor: default;
}
.kja-reader__textlayer .kja-hl {
  background: rgba(255, 210, 0, 0.5);
  border-radius: 2px;
}
.kja-reader__textlayer .kja-hl--active {
  background: rgba(255, 140, 0, 0.7);
}

/* Screen-share guard — blurs pages while getDisplayMedia capture is active. */
.kja-reader__stage--capture-blocked .kja-reader__pages {
  filter: blur(14px);
  opacity: 0.12;
  pointer-events: none;
}
.kja-reader__capture-block {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  text-align: center;
}
.kja-reader__capture-block[hidden] {
  display: none;
}
.kja-reader__capture-block-message {
  max-width: 22rem;
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.5;
}

/* Security overlay — must not block scroll; drag/right-click are blocked in JS/CSS on the canvas. */
.kja-reader__shield {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: transparent;
  pointer-events: none;
  touch-action: pan-x pan-y;
}

.kja-reader__loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: var(--kja-surface-2);
  color: var(--kja-ink-2);
  z-index: 10;
}
.kja-reader__spinner {
  width: 2rem;
  height: 2rem;
  border: 2px solid var(--kja-line);
  border-top-color: var(--kja-ink-2);
  border-radius: 50%;
  animation: kja-spin 0.75s linear infinite;
  flex-shrink: 0;
}
.kja-reader__loading-status {
  font-size: 0.875rem;
  text-align: center;
}

#kja-reader:fullscreen {
  border-radius: 0;
  border: 0;
  height: 100vh;
  max-height: none;
  display: flex;
  flex-direction: column;
}
#kja-reader:fullscreen .kja-reader__stage {
  min-height: 0;
  flex: 1;
}

body.kja-issue-reading .kja-main,
body.kja-book-reading .kja-main {
  min-height: 0;
  margin-bottom: 0;
}

body.kja-issue-reading .kja-footer,
body.kja-book-reading .kja-footer {
  display: none;
}

body.kja-issue-reading #kja-reader,
body.kja-book-reading #kja-reader {
  height: calc(100dvh - 4rem);
  max-height: calc(100dvh - 4rem);
}

body.kja-issue-reading .kja-reader__stage,
body.kja-book-reading .kja-reader__stage {
  min-height: 0;
  flex: 1 1 0;
}

.kja-reader__notes {
  margin: 2rem auto 0;
}

.kja-reader__download-toast {
  position: fixed;
  left: 50%;
  bottom: calc(1.25rem + env(safe-area-inset-bottom, 0px));
  z-index: 250;
  width: min(32rem, calc(100vw - 2rem));
  pointer-events: none;
  visibility: hidden;
  transform: translateX(-50%);
}
.kja-reader__download-toast.is-open {
  visibility: visible;
}
.kja-reader__download-toast-panel {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  background: var(--kja-bg-2);
  border: 1px solid var(--kja-line);
  box-shadow: 0 10px 28px rgb(0 0 0 / 0.16);
  opacity: 0;
  transform: translateY(calc(100% + 0.75rem));
  transition:
    transform 0.28s cubic-bezier(0.32, 0.72, 0, 1),
    opacity 0.22s ease;
}
.kja-reader__download-toast.is-open .kja-reader__download-toast-panel {
  opacity: 1;
  transform: translateY(0);
}
.kja-reader__download-toast-message {
  margin: 0;
  flex: 1;
  min-width: 0;
  font-size: 0.9375rem;
  line-height: 1.35;
  color: var(--kja-ink);
}
.kja-reader__download-toast-close {
  flex-shrink: 0;
  min-width: var(--kja-control-h);
  padding: 0;
}

@media (max-width: 720px) {
  body.kja-issue-reading #kja-reader,
  body.kja-book-reading #kja-reader {
    height: calc(
      100dvh - 4rem - var(--kja-mobile-nav-h) - env(safe-area-inset-bottom, 0px)
    );
    max-height: calc(
      100dvh - 4rem - var(--kja-mobile-nav-h) - env(safe-area-inset-bottom, 0px)
    );
  }

  body.kja-mobile-reader.kja-issue-reading #kja-reader,
  body.kja-mobile-reader.kja-book-reading #kja-reader {
    height: calc(
      100dvh - var(--kja-mobile-stack-header-h) -
        env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px)
    );
    max-height: calc(
      100dvh - var(--kja-mobile-stack-header-h) -
        env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px)
    );
  }
}

@media (max-width: 640px) {
  .kja-reader__group--actions .kja-save-btn {
    display: none;
  }
  .kja-reader__toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0;
    border-bottom: none;
  }
  .kja-reader__toolbar-primary {
    display: flex;
    align-items: center;
    gap: 0.15rem;
    justify-content: space-between;
    width: 100%;
    padding: 0.35rem;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .kja-reader__toolbar-primary::-webkit-scrollbar {
    display: none;
  }
  .kja-reader__toolbar-search {
    display: none;
  }
  .kja-reader__group--nav,
  .kja-reader__group--zoom,
  .kja-reader__group--actions {
    flex-shrink: 0;
  }
  .kja-reader__group--nav {
    gap: 0.15rem;
  }
  .kja-reader__group--zoom {
    gap: 0.15rem;
  }
  #kja-page-input {
    width: 2.25rem;
  }
  .kja-reader__stage {
    padding: 0;
  }
}

@media (min-width: 641px) {
  .kja-tool {
    min-width: 2.5rem;
    height: 2.5rem;
    font-size: 0.875rem;
  }
}

html.kja-embed,
html.kja-embed body.kja-embed {
  height: 100%;
  overflow: hidden;
}
html.kja-embed body.kja-issue-reading,
html.kja-embed body.kja-book-reading {
  overflow: hidden;
  padding: 0 !important;
}
html.kja-embed body.kja-issue-reading .kja-main,
html.kja-embed body.kja-book-reading .kja-main {
  min-height: 100dvh;
  height: 100dvh;
  margin: 0;
  display: flex;
  flex-direction: column;
}
html.kja-embed body.kja-issue-reading .kja-section,
html.kja-embed body.kja-book-reading .kja-section {
  max-width: none;
  margin: 0;
  padding: 0;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
html.kja-embed .kja-reader-page {
  max-width: none;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
html.kja-embed body.kja-issue-reading #kja-reader,
html.kja-embed body.kja-book-reading #kja-reader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  width: 100%;
  height: 100dvh !important;
  max-height: none !important;
  border: 0;
  border-radius: 0;
}
html.kja-embed body.kja-issue-reading .kja-reader__stage,
html.kja-embed body.kja-book-reading .kja-reader__stage {
  min-height: 0;
  flex: 1;
}
html.kja-embed .kja-reader__notes {
  display: none;
}

@media (max-width: 380px) {
  .kja-reader__toolbar-primary {
    gap: 0.1rem;
    padding: 0.25rem;
  }
  .kja-tool {
    padding: 0 0.15rem;
    min-width: 1.75rem;
    height: 1.75rem;
    font-size: 0.75rem;
  }
  #kja-page-input {
    width: 1.75rem;
    height: 1.75rem;
    font-size: 0.75rem;
  }
}