/* Animation */
@keyframes fade-in-up {
  0% {
    transform: translateY(2rem);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}
.animate {
  opacity: 0;
  animation: 300ms fade-in-up;
  animation-fill-mode: forwards;
}
@media (prefers-reduced-motion) {
  .animate {
    opacity: 0;
    animation: 100ms fade-in-up;
    animation-fill-mode: forwards;
  }
}
#content-header {
  animation-delay: 50ms;
}
#content {
  animation-delay: 100ms;
}
#sidebar {
  animation-delay: 150ms;
}

/* Katex */
span.katex-display {
  overflow-y: scroll;
  padding: 0.5rem;
}
.katex-html {
  overflow: auto hidden;
  padding: 3px;
}
.katex-html .base {
  margin-block: 0;
  margin-inline: auto;
}
.katex-html .tag {
  position: relative !important;
  display: inline-block;
  padding-inline-start: 0.5rem;
}

/* Shiki */
.astro-code {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
  border-radius: 0.5rem;
  background-color: hsl(var(--muted) / var(--un-bg-opacity, 1)) !important;

  /* Code container */
  & pre {
    margin: 0;
    padding-inline: 0;
    background: none;
    overflow-x: scroll;

    & code {
      display: block;
      width: fit-content;
      min-width: 100%;
      min-height: 1.5rem;
      counter-reset: step;
      counter-increment: step 0;
      &::before {
        position: absolute;
        inset-inline-start: 0;
        width: 2.75rem;
        top: 0.8571429em;
        bottom: 0;
        content: '';
        display: block;
        background-color: hsl(var(--muted) / var(--un-bg-opacity, 1));
        z-index: 1;
      }
      & .line {
        padding-inline-end: 3rem;
        &::before {
          position: sticky;
          content: counter(step);
          counter-increment: step;
          color: hsl(var(--muted-foreground) / 0.6);
          background-color: hsl(var(--muted) / var(--un-bg-opacity, 1));
          inset-inline-start: 0;
          justify-content: end;
          display: inline-flex;
          width: 2rem;
          padding-inline-end: 0.75rem;
          box-sizing: content-box;
          z-index: 2;
        }
        &:last-child:empty,
        &:last-child:has(> span:empty:only-child) {
          display: none;
        }
      }
    }
  }

  /* Shiki transformer */
  &:has(code) {
    position: relative;
  }
  &:has(div.title) {
    padding-top: 2rem;
    & code::before {
      top: calc(2rem + 0.8571429em);
    }
  }
  & .language {
    transition: opacity 0.3s;
    position: absolute;
    top: 0.75rem;
    right: 0;
  }
  & button.copy {
    transition: opacity 0.3s;
    opacity: 0;
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    user-select: none;

    & .success::before {
      content: 'Copied!';
      position: absolute;
      right: 100%;
      top: 0;
      bottom: 0;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 0.75rem;
      padding: 0.5rem;
      margin-right: 0.5rem;
      border-radius: 0.25rem;
      color: hsl(var(--muted-foreground) / var(--un-text-opacity, 1));
      background-color: hsl(var(--primary-foreground) / var(--un-bg-opacity, 1));
      border: 1px solid hsl(var(--border) / var(--un-border-opacity, 1));
    }
    &.copied {
      & .success {
        display: block;
      }

      & .ready {
        display: none;
      }
    }
  }
  &:hover {
    button.copy {
      opacity: 1;
    }
    .language {
      opacity: 0;
    }
  }

  & .highlighted,
  & .diff {
    min-width: 100%;
    display: inline-block;
  }
  & .highlighted,
  & .highlighted::before {
    background-color: rgba(149, 166, 183, 0.32) !important;
  }

  & .diff {
    &.remove {
      background-color: rgba(244, 63, 94, 0.16);
      &::before {
        background-color: rgba(244, 63, 94, 0.16);
        content: '-';
      }
    }
    &.add {
      background-color: rgba(16, 185, 129, 0.16);
      &::before {
        background-color: rgba(16, 185, 129, 0.16);
        content: '+';
      }
    }
  }
}
.dark {
  .astro-code pre span {
    color: var(--shiki-dark) !important;
  }
}

/* Scroll bar */
:root {
  --scrollbar-width: 6px;
  --scrollbar-bg: #e0e0e0;
  --scrollbar-thumb-bg: #c0c0c0;
}
html.dark {
  --scrollbar-bg: #2e2e2e;
  --scrollbar-thumb-bg: #4e4e4e;
}
body::-webkit-scrollbar {
  height: 0;
}
::-webkit-scrollbar {
  width: 6px !important;
  height: 6px !important;
  background: #0000;
}
::-webkit-scrollbar-thumb {
  background-color: var(--scrollbar-thumb-bg);
  border-radius: 999px;
  border: 2px solid var(--scrollbar-thumb-bg);
  opacity: 0.5;
}
::-webkit-scrollbar-corner {
  background: transparent;
}
::-webkit-scrollbar-track {
  background: transparent;
}