@import '../../assets/style/colors.scss';

:host {
  --thumbnail-border-radius: 4px;
  --sidebar-width: 160px;
  --sidebar-transition-duration: 240ms;
  --sidebar-transition-easing: cubic-bezier(0.65, 0, 0.35, 1);

  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  width: 0;
  box-sizing: border-box;
  overflow: hidden;
  padding: 12px 0;
  background-color: var(--litpdf-surface-background, #fff);
  border-right: 1px solid transparent;
  opacity: 0;
  transform: translateX(-12px);
  pointer-events: none;
  transition:
    width var(--sidebar-transition-duration) var(--sidebar-transition-easing),
    padding var(--sidebar-transition-duration) var(--sidebar-transition-easing),
    opacity var(--sidebar-transition-duration) var(--sidebar-transition-easing),
    transform var(--sidebar-transition-duration) var(--sidebar-transition-easing);
}

:host([open]) {
  width: var(--sidebar-width);
  padding: 12px 8px;
  overflow-y: auto;
  border-right-color: var(--litpdf-border-color, #{map-get($primary-color-2, '50')});
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0;

  li {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
  }
}

.thumbnail {
  display: flex;
  padding: 4px;
  border: 2px solid transparent;
  border-radius: var(--thumbnail-border-radius);
  background: transparent;
  cursor: pointer;
  box-sizing: border-box;
  outline: 0;

  &:hover {
    border-color: var(--litpdf-button-border-hover, #{map-get($primary-color, 'medium')});
  }

  &:focus-visible {
    box-shadow: 0 0 0 2px var(--litpdf-focus-ring-color, #{map-get($primary-color, 'medium')});
  }

  &[data-current] {
    border-color: var(--litpdf-accent-color, #{map-get($primary-color, 'medium')});
  }
}

.canvas {
  display: block;
  background-color: #fff;
  box-shadow: var(--litpdf-surface-shadow, #{$shadow});
}

.pageNumber {
  font-size: 0.7rem;
  color: var(--litpdf-text-color-muted, #{map-get($primary-color-2, '75')});
}

// On small screens a fixed-width sidebar would leave no room for the
// document itself, so it overlays the viewer as a drawer instead of sharing
// the row with it. Fixed width regardless of open state (unlike the desktop
// push layout, which collapses to 0) — only opacity/transform (inherited
// from the base :host/:host([open]) rules above) show or hide it.
@media (max-width: 600px) {
  :host {
    position: absolute;
    inset: 0 auto 0 0;
    z-index: 600;
    width: 75vw;
    max-width: 260px;
    padding: 12px 8px;
    overflow-y: auto;
    box-shadow: var(--litpdf-surface-shadow, #{$shadow});
  }

  :host([open]) {
    width: 75vw;
    max-width: 260px;
  }
}