/* Based on SPCSS by Susam Pal: https://github.com/susam/spcss
   Enhanced with colorful heading hierarchy and brighter code colors */

body {
  color: #333;
  font-family: helvetica, arial, sans-serif;
  line-height: 1.5;
  margin: 0 auto;
  max-width: 40em;
  padding: 0 1em;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid #111;
  outline-offset: 2px;
}

fieldset {
  border: 0;
  margin: 0;
  min-width: 0;
  padding: 0;
}

legend {
  padding: 0;
}

.sr-only {
  border: 0;
  clip: rect(0, 0, 0, 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

h1, h2, h3, h4, h5, h6 {
  margin: 1.25em 0 0.5em 0;
  line-height: 1.2;
}

/* Colorful heading hierarchy */
h1 {
  color: #ff4500;
}
h2 {
  color: #008844;
}
h3 {
  color: #336699;
}

a:link {
  color: #0000ff;
}
a:visited {
  color: #336699;
}
a:focus, a:hover {
  color: #03f;
}
a:active {
  color: #e00;
}

h1 a:empty:before, h2 a:empty:before, h3 a:empty:before,
h4 a:empty:before, h5 a:empty:before, h6 a:empty:before {
  content: "#";
}
h1 a:empty, h2 a:empty, h3 a:empty, h4 a:empty, h5 a:empty, h6 a:empty {
  visibility: hidden;
  padding-left: 0.25em;
}
h1:hover a:empty, h2:hover a:empty, h3:hover a:empty,
h4:hover a:empty, h5:hover a:empty, h6:hover a:empty {
  visibility: visible;
}

img {
  max-width: 100%;
}

figure {
  margin: 1em 0;
  text-align: center;
}

figcaption {
  font-size: small;
}

pre, code, samp, kbd {
  font-family: monospace, monospace;
}

/* Brighter code colors */
pre, code, kbd {
  color: #009;
}
pre kbd {
  color: #060;
}
samp {
  color: #730;
}

pre, blockquote {
  background: #eee;
  padding: 0.5em;
}

pre {
  overflow: auto;
}

blockquote {
  border-left: medium solid #ccc;
  margin: 1em 0;
}

blockquote :first-child {
  margin-top: 0;
}

blockquote :last-child {
  margin-bottom: 0;
}

.announcement {
  border-left: 3px solid #22c55e;
  margin-left: 0;
  padding-left: 1em;
}

.notice {
  border-left: 3px solid #ef4444;
  margin-left: 0;
  padding-left: 1em;
}

table {
  border-collapse: collapse;
}

th, td {
  border: thin solid #999;
  padding: 0.3em 0.4em;
  text-align: left;
}

/* Optional header section styling */
#header {
  background-color: #33bb33;
  color: #cccccc;
  border-bottom: 2px solid #336699;
  padding: 3px 10px;
  margin: -0.5em -1em 1em -1em;
}
#header a {
  color: #cccccc;
}
#header li {
  display: inline;
  margin-right: 1em;
}

/* Blink animation for special effects */
@keyframes blink {
  50% { opacity: 0.0; }
}
.blink {
  animation: blink 1s step-start 0s infinite;
}

/* Dark mode with adjusted vibrant colors */
@media (prefers-color-scheme: dark) {
  body {
    background: #111;
    color: #bbb;
  }

  /* Lighter, more vibrant heading colors for dark mode */
  h1 {
    color: #ff6347;
  }
  h2 {
    color: #4ed34e;
  }
  h3 {
    color: #5cacee;
  }

  a:link {
    color: #9bf;
  }
  a:visited {
    color: #caf;
  }
  a:focus, a:hover {
    color: #9cf;
  }
  a:active {
    color: #f99;
  }

  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  select:focus-visible,
  textarea:focus-visible {
    outline-color: #fff;
  }

  /* Lighter code colors for dark backgrounds */
  pre, code, kbd {
    color: #6c9bd1;
  }
  pre kbd {
    color: #9c6;
  }
  samp {
    color: #db0;
  }

  pre, blockquote {
    background: #000;
  }

  blockquote {
    border-color: #333;
  }

  .announcement {
    border-color: #4ade80;
  }

  .notice {
    border-color: #f87171;
  }

  th, td {
    border-color: #666;
  }

  /* Dark mode header */
  #header {
    background-color: #2a9d2a;
    border-bottom-color: #5cacee;
  }
}