.bpdf-viewer {
  --bpdf-bg: #202328;
  --bpdf-panel: #ffffff;
  --bpdf-panel-soft: #f5f7fb;
  --bpdf-text: #151922;
  --bpdf-muted: #697386;
  --bpdf-border: #d9dee8;
  --bpdf-accent: #0f7a7a;
  --bpdf-accent-strong: #0b5f60;
  --bpdf-page-bg: #3f434b;
  --bpdf-shadow: 0 18px 46px rgba(15, 23, 42, 0.2);
  color: var(--bpdf-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  width: 100%;
}

.bpdf-theme-light {
  --bpdf-bg: #eef2f6;
  --bpdf-page-bg: #dfe5ec;
  --bpdf-panel-soft: #f8fafc;
  --bpdf-accent: #1d6fbe;
  --bpdf-accent-strong: #164f89;
}

.bpdf-theme-midnight {
  --bpdf-bg: #10141d;
  --bpdf-panel: #151b26;
  --bpdf-panel-soft: #1c2533;
  --bpdf-text: #f2f5f9;
  --bpdf-muted: #aab4c2;
  --bpdf-border: #2d3747;
  --bpdf-page-bg: #0c1017;
  --bpdf-accent: #2aa7a1;
  --bpdf-accent-strong: #5ccbc5;
}

.bpdf-shell {
  background: var(--bpdf-bg);
  border: 1px solid var(--bpdf-border);
  border-radius: 8px;
  box-shadow: var(--bpdf-shadow);
  min-height: 380px;
  overflow: hidden;
}

.bpdf-toolbar {
  align-items: center;
  background: var(--bpdf-panel);
  border-bottom: 1px solid var(--bpdf-border);
  display: flex;
  gap: 12px;
  justify-content: space-between;
  min-height: 68px;
  padding: 10px 12px;
}

.bpdf-toolbar__group {
  align-items: center;
  display: flex;
  flex: 0 0 auto;
  gap: 8px;
}

.bpdf-toolbar__group--title {
  flex: 1 1 220px;
  min-width: 0;
}

.bpdf-title {
  display: grid;
  line-height: 1.25;
  min-width: 0;
}

.bpdf-title strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bpdf-title span {
  color: var(--bpdf-muted);
  font-size: 12px;
}

.bpdf-icon-button,
.bpdf-zoom-value,
.bpdf-primary-button {
  align-items: center;
  appearance: none;
  background: var(--bpdf-panel-soft);
  border: 1px solid var(--bpdf-border);
  border-radius: 6px;
  color: var(--bpdf-text);
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-size: 14px;
  font-weight: 650;
  height: 38px;
  justify-content: center;
  line-height: 1;
  min-width: 38px;
  padding: 0 12px;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.bpdf-icon-button:hover,
.bpdf-zoom-value:hover,
.bpdf-primary-button:hover {
  border-color: var(--bpdf-accent);
  color: var(--bpdf-accent-strong);
}

.bpdf-icon-button:focus-visible,
.bpdf-zoom-value:focus-visible,
.bpdf-primary-button:focus-visible,
.bpdf-page-jump input:focus-visible,
.bpdf-document:focus-visible {
  outline: 3px solid rgba(15, 122, 122, 0.28);
  outline-offset: 2px;
}

.bpdf-primary-button {
  background: var(--bpdf-accent);
  border-color: var(--bpdf-accent);
  color: #ffffff;
  padding: 0 16px;
}

.bpdf-primary-button:hover {
  background: var(--bpdf-accent-strong);
  color: #ffffff;
}

.bpdf-page-jump {
  align-items: center;
  background: var(--bpdf-panel-soft);
  border: 1px solid var(--bpdf-border);
  border-radius: 6px;
  color: var(--bpdf-muted);
  display: inline-flex;
  font-size: 13px;
  gap: 6px;
  height: 38px;
  padding: 0 10px;
}

.bpdf-page-jump input {
  background: var(--bpdf-panel);
  border: 1px solid var(--bpdf-border);
  border-radius: 5px;
  color: var(--bpdf-text);
  height: 26px;
  line-height: 26px;
  padding: 0 4px;
  text-align: center;
  width: 58px;
}

.bpdf-stage {
  display: grid;
  grid-template-columns: 154px minmax(0, 1fr);
  height: var(--bpdf-height, 720px);
  min-height: 360px;
}

.bpdf-thumbs {
  background: var(--bpdf-panel-soft);
  border-right: 1px solid var(--bpdf-border);
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: auto;
  padding: 14px;
}

.bpdf-thumb {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
  color: var(--bpdf-muted);
  cursor: pointer;
  display: grid;
  gap: 6px;
  padding: 7px;
  text-align: center;
  transition: background 160ms ease, border-color 160ms ease;
}

.bpdf-thumb:hover,
.bpdf-thumb.is-active {
  background: var(--bpdf-panel);
  border-color: var(--bpdf-accent);
}

.bpdf-thumb__canvas {
  align-items: center;
  aspect-ratio: 0.72;
  background: #ffffff;
  border-radius: 4px;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.18);
  display: flex;
  justify-content: center;
  overflow: hidden;
}

.bpdf-thumb__canvas canvas {
  display: block;
  max-width: 100%;
}

.bpdf-thumb__label {
  font-size: 12px;
  font-weight: 650;
}

.bpdf-document {
  background: var(--bpdf-page-bg);
  overflow: auto;
  position: relative;
  scroll-behavior: smooth;
}

.bpdf-document::-webkit-scrollbar,
.bpdf-thumbs::-webkit-scrollbar {
  height: 12px;
  width: 12px;
}

.bpdf-document::-webkit-scrollbar-track,
.bpdf-thumbs::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.12);
}

.bpdf-document::-webkit-scrollbar-thumb,
.bpdf-thumbs::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.42);
  border: 3px solid transparent;
  border-radius: 999px;
  background-clip: padding-box;
}

.bpdf-pages {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 100%;
  padding: 28px 18px;
}

.bpdf-page {
  align-items: center;
  display: flex;
  justify-content: center;
  min-height: 760px;
  width: max-content;
  min-width: 100%;
}

.bpdf-page canvas {
  background: #ffffff;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.34);
  display: block;
  max-width: none;
}

.bpdf-page__placeholder {
  align-items: center;
  background: rgba(255, 255, 255, 0.82);
  border: 1px dashed rgba(105, 115, 134, 0.6);
  border-radius: 6px;
  color: #697386;
  display: flex;
  height: 720px;
  justify-content: center;
  width: min(92%, 520px);
}

.bpdf-loader {
  align-items: center;
  background: rgba(32, 35, 40, 0.88);
  color: #ffffff;
  display: flex;
  flex-direction: column;
  gap: 10px;
  inset: 0;
  justify-content: center;
  position: absolute;
  text-align: center;
  z-index: 3;
}

.bpdf-loader[hidden] {
  display: none;
}

.bpdf-spinner {
  animation: bpdf-spin 900ms linear infinite;
  border: 4px solid rgba(255, 255, 255, 0.32);
  border-radius: 50%;
  border-top-color: #ffffff;
  height: 48px;
  width: 48px;
}

.bpdf-error {
  align-items: center;
  background: #fff5f5;
  border: 1px solid #fecaca;
  border-radius: 8px;
  color: #991b1b;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 480px;
  padding: 24px;
}

.bpdf-print-frame {
  border: 0;
  height: 0;
  position: fixed;
  right: 0;
  top: 0;
  width: 0;
}

.bpdf-notice {
  background: #fff8e1;
  border: 1px solid #f4d06f;
  border-radius: 8px;
  color: #6a4a00;
  padding: 14px 16px;
}

.thumbs-collapsed .bpdf-stage,
.no-thumbs .bpdf-stage {
  grid-template-columns: minmax(0, 1fr);
}

.thumbs-collapsed .bpdf-thumbs,
.no-thumbs .bpdf-thumbs {
  display: none;
}

.bpdf-viewer:fullscreen {
  background: var(--bpdf-bg);
  height: 100vh;
  padding: 14px;
}

.bpdf-viewer:fullscreen .bpdf-stage {
  height: calc(100vh - 96px);
}

@keyframes bpdf-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 820px) {
  .bpdf-toolbar {
    align-items: stretch;
    flex-wrap: wrap;
  }

  .bpdf-toolbar__group {
    flex: 1 1 auto;
  }

  .bpdf-toolbar__group--title {
    flex-basis: 100%;
  }

  .bpdf-stage {
    grid-template-columns: minmax(0, 1fr);
  }

  .bpdf-thumbs {
    display: none;
  }

  .bpdf-pages {
    padding: 18px 10px;
  }
}

@media (max-width: 520px) {
  .bpdf-toolbar {
    gap: 8px;
    padding: 8px;
  }

  .bpdf-toolbar__group {
    justify-content: center;
  }

  .bpdf-icon-button,
  .bpdf-zoom-value,
  .bpdf-primary-button {
    height: 36px;
    min-width: 36px;
    padding: 0 9px;
  }

  .bpdf-page-jump {
    padding: 0 8px;
  }

  .bpdf-page-jump span:first-child {
    display: none;
  }
}