/* start light mode styling */
:root {
  --text: darkslategrey;
  --border: lightgrey;
  --accent: teal;
  --bg: #dce3e1;
  --gradientTop: white;
  --gradientBottom: rgb(240, 248, 255, 0.8);
}
header {
  background: url("***light mode banner image***");
}
/* end light mode styling */

/* start dark mode styling */
@media (prefers-color-scheme: dark) {
  :root {
    --text: white;
    --border: #5a7678;
    --accent: #74c365;
    --bg: rgb(0, 60, 60, 0.8);
    --gradientBottom: rgb(0, 50, 60);
    --gradientTop: darkslategrey;
    a:link {
      color: lightblue;
    }
  }
  header {
    background: url("***dark mode banner image***");
  }
}
/* end dark mode styling */

* {
  box-sizing: border-box;
}
body {
  padding: 10px;
  font-family: "MS PGothic", sans-serif;
  color: var(--text);

  /* page background pattern */
  background-color: var(--gradientTop);
  background-image:
    linear-gradient(
      30deg,
      var(--bg) 12%,
      transparent 12.5%,
      transparent 87%,
      var(--bg) 87.5%,
      var(--bg)
    ),
    linear-gradient(
      150deg,
      var(--bg) 12%,
      transparent 12.5%,
      transparent 87%,
      var(--bg) 87.5%,
      var(--bg)
    ),
    linear-gradient(
      30deg,
      var(--bg) 12%,
      transparent 12.5%,
      transparent 87%,
      var(--bg) 87.5%,
      var(--bg)
    ),
    linear-gradient(
      150deg,
      var(--bg) 12%,
      transparent 12.5%,
      transparent 87%,
      var(--bg) 87.5%,
      var(--bg)
    ),
    linear-gradient(
      60deg,
      var(--bg) 25%,
      transparent 25.5%,
      transparent 75%,
      var(--bg) 75%,
      var(--bg)
    ),
    linear-gradient(
      60deg,
      var(--bg) 25%,
      transparent 25.5%,
      transparent 75%,
      var(--bg) 75%,
      var(--bg)
    );
  background-size: 20px 35px;
  background-position:
    0 0,
    0 0,
    10px 18px,
    10px 18px,
    0 0,
    10px 18px;
}

.container {
  max-width: 55rem;
  margin: 5vw auto 12px auto;
  border: 6px ridge var(--border);
  outline: 3px solid var(--gradientTop);
  outline-offset: 4px;
  border-radius: 10px;
  display: flex;
  flex-wrap: wrap;
  padding: 5px;
  gap: 5px;

  /* container background pattern */
  background-color: var(--gradientBottom);
  background-image:
    repeating-radial-gradient(
      circle at 0 0,
      transparent 0,
      var(--gradientBottom) 9px
    ),
    repeating-linear-gradient(var(--bg), var(--bg));
}
/* these control the column widths */
.small {
  flex: 1 1 9%;
}
.large {
  flex: 1 1 82%;
}
.full {
  flex: 1 1 100%;
}
.half {
  flex: 1 1 49%;
}

header {
  background-size: cover;
  background-position: center;
  width: 100%;
  height: 120px; /* change banner height here*/
  border: 2px ridge var(--border);
  border-radius: 5px;
  position: relative;
}
header span {
  font-size: 2.5rem;
  position: absolute;
  bottom: 0;
  right: 10px;
  margin: 10px;
  font-weight: bold;
  text-shadow:
    1px 1px var(--text),
    -1px 1px var(--text),
    1px -1px var(--accent),
    -1px -1px var(--accent);
  color: var(--gradientTop);
}

nav {
  border: 2px ridge var(--border);
  border-radius: 5px;
  padding: 5px;
  background: linear-gradient(var(--gradientTop), var(--gradientBottom));
}
nav div {
  text-align: center;
  font-size: 1.25rem;
  margin: 5px 5px 10px 5px;
}
nav a {
  display: block;
  margin: 5px;
  background: linear-gradient(to right, var(--bg), var(--gradientBottom));
  border-radius: 5px;
  padding: 2px 7px;
  text-decoration: none;
}
nav a:link,
nav a:visited {
  color: var(--text);
}
nav a:hover,
nav a:focus {
  background: linear-gradient(
    to right,
    var(--bg),
    var(--gradientBottom),
    var(--gradientTop)
  );
}

/* optional button styling like in the preview */
div.small > img {
  display: block;
  margin: 5px auto;
  border: 2px ridge var(--border);
  border-radius: 5px;
}

div.gallery {
  display: flex;
  margin: 5px auto;
  flex-wrap: wrap;
  justify-content: flex-start;
}

div.gallery > img {
  max-width: 28px;
}

section {
  border: 2px ridge var(--border);
  border-radius: 5px;
  background: linear-gradient(var(--gradientTop), var(--gradientBottom));
  padding: 5px;
}

footer {
  text-align: center;
  margin-bottom: 5vw;
  font-size: 0.8rem;
}
footer a {
  text-decoration: none;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin: 5px;
  line-height: 1.2;
}
h1 {
  font-size: 1.4rem;
  letter-spacing: 2px;
  font-weight: normal;
  text-align: center;
  border-bottom: 2px ridge var(--border);
  padding-bottom: 5px;
}
h2 {
  font-size: 1.25rem;
  font-weight: normal;
  text-align: center;
}
h3 {
  font-size: 1.1rem;
}
h4 {
  font-size: 1rem;
  color: var(--accent);
  padding-left: 12px;
}

/* prevents overflow on smaller screens */
img {
  max-width: 100%;
}
pre {
  overflow-x: auto;
}

a:hover,
a:focus {
  font-style: italic;
}
a:visited {
  color: var(--accent);
}