* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #ebebeb;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: #000;
  padding-top: 70px;
}

main a {
  color: #045a96;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: bold;
  font-size: 1em;
  text-decoration: underline;
  padding: 0 2px;
}

main a:hover,
main a:visited {
  color: #045a96;
  text-decoration: underline;
}

main a:active,
main a:focus {
  color: #045a96;
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid #045a96;
  outline-offset: 2px;
}

main ul {
  list-style: disc;
  margin: 0 0 20px 20px;
  padding: 0;
}

main ul ul {
  list-style: circle;
  margin: 5px 0 5px 20px;
}

main ul li {
  margin-bottom: 5px;
}

main ol {
  list-style: decimal;
  margin: 0 0 20px 20px;
  padding: 0;
}

header {
  background-color: #045A96;
  text-align: center;
  padding: 20px;
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

header a {
  font-size: 1.5em;
  font-weight: bold;
  color: #fff;
  font-family: Arial, Helvetica, sans-serif;
  text-decoration: none;
}

header a:hover {
  text-decoration: underline;
}

header a:visited,
header a:active,
header a:focus {
  color: #fff;
  text-decoration: none;
}

.container {
  max-width: 970px;
  margin: 20px auto;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.sidebar {
  background-color: #ebebeb;
  padding: 20px;
  flex: 1;
  min-width: 200px;
  max-width: 250px;
}

.sidebar h2 {
  font-size: 1.5em;
  font-weight: bold;
  color: #000;
  margin: 0 0 20px 0;
}

.sidebar ul {
  list-style: none;
  margin: 0 0 20px 0;
  padding: 0;
}

.sidebar ul li {
  margin-bottom: 0;
  line-height: 1.2;
}

.sidebar ul li a {
  color: #045a96;
  font-weight: bold;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1em;
  text-decoration: none;
  padding: 5px 10px;
  display: block;
}

.sidebar ul li a.current {
  background-color: #d0d0d0;
  color: #000;
  border-left: 4px solid #045a96;
}

.sidebar ul li a:hover,
.sidebar ul li a:visited,
.sidebar ul li a:active,
.sidebar ul li a:focus {
  color: #045a96;
  text-decoration: none;
}

.sidebar ul li .upcoming-link {
  color: #666;
  font-weight: bold;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1em;
  text-decoration: none;
  padding: 5px 10px;
  display: block;
}

main {
  max-width: 710px;
  padding: 20px;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  flex: 3;
}

h1 {
  font-size: 2em;
  margin-bottom: 10px;
  margin-top: 0;
  color: #000;
}

h2 {
  font-size: 1.5em;
  margin: 10px 0;
  color: #000;
}

p {
  font-size: 1em;
  margin-bottom: 20px;
}

.inline-image {
  max-width: 100%;
  height: auto;
  margin: 10px;
}

.inline-image.gif {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.standalone-image {
  max-width: 100%;
  height: auto;
  margin: 10px auto 20px auto;
  display: block;
}

.standalone-image.gif {
  max-width: 100%;
  height: auto;
  margin: 10px auto 20px auto;
  object-fit: contain;
}

.left-orientation {
  float: left;
  margin-right: 20px;
}

.right-orientation {
  float: right;
  margin-left: 20px;
}

.center-orientation {
  margin-left: auto;
  margin-right: auto;
}

.centered-image-group {
  text-align: center;
}

.centered-image-group img {
  display: inline-block;
  float: none;
  vertical-align: middle;
  max-width: 100%;
  height: auto;
  margin: 0;
}

main .content-banner {
  margin: 20px 0;
  text-align: center;
}

main .content-banner.amazon-affiliate img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

main .video-container {
  max-width: 100%;
  margin: 20px 0;
  text-align: center;
}

main .youtube-video,
main .hosted-video {
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  display: block;
  margin: 0 auto;
}

main .copyright {
  font-size: 0.8em;
  color: #fff;
  text-align: center;
  margin: 30px -20px -20px -20px;
  padding: 15px 20px 15px 20px;
  display: block;
  background-color: #3d3d3d;
  border-top: 1px solid #555;
  border-left: 1px solid #555;
  border-right: 1px solid #555;
}

main .copyright a {
  color: #fff;
  font-weight: bold;
  text-decoration: none;
  display: block;
  text-align: center;
  font-size: 1em;
}

main .copyright a:hover,
main .copyright a:visited,
main .copyright a:active,
main .copyright a:focus {
  color: #ddd;
  text-decoration: underline;
}

main .copyright strong {
  display: block;
  margin-bottom: 4px;
  text-align: center;
}

main .copyright span {
  font-style: italic;
  display: block;
  text-align: center;
}

.explanation-text {
  text-align: center;
  font-size: 0.85em;
  font-style: italic;
  color: #555;
  margin: 0 0 18px 0;
  line-height: 1.3;
}

hr.section-divider {
  border: 1px dashed #000;
  margin: 40px 0 20px 0;
  width: 100%;
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
    margin: 10px;
  }

  .sidebar {
    max-width: 100%;
    min-width: 100%;
    order: 2;
  }

  main {
    margin: 0;
    padding: 15px;
    max-width: 100%;
    order: 1;
  }

  h1,
  h2 {
    text-align: center;
  }

  .inline-image,
  .left-orientation,
  .right-orientation {
    max-width: 100%;
    float: none;
    margin: 15px auto 20px auto;
    display: block;
  }

  .centered-image-group img {
    margin: 0;
    display: inline-block;
  }
}

@media (max-width: 600px) {
  .container {
    margin: 8px;
    gap: 12px;
  }

  .sidebar {
    padding: 15px;
  }

  main {
    padding: 12px;
  }

  h1 {
    font-size: 1.6em;
  }

  h2 {
    font-size: 1.3em;
  }
}

@media (max-width: 480px) {
  header {
    padding: 12px 8px;
  }

  header a {
    font-size: 1.1em;
  }

  h1 {
    font-size: 1.35em;
  }

  body {
    padding-top: 60px;
  }
}

@media (max-width: 360px) {
  header {
    padding: 10px 6px;
  }

  header a {
    font-size: 1em;
  }

  main {
    padding: 10px;
  }

  h1 {
    font-size: 1.25em;
  }

  h2 {
    font-size: 1.15em;
  }

  main .copyright {
    margin-left: -10px;
    margin-right: -10px;
    padding-left: 10px;
    padding-right: 10px;
  }
}