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

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  background-color: #1a1a1e;
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  margin: 0;
}

.container {
  border: 10px solid rgb(0, 0, 0);
  padding: 20px;
  max-width: 1200px;
  width: 100%;
  background-color: white;
  margin: 0 auto;
  margin-bottom: 40px;
  flex: 1;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  border-radius: 40px;
  display: flex;
  flex-direction: column;
}

.container-alt {
  border: 10px solid black;
  padding: 20px;
  width: 80%;
  background-color: white;
}

main {
  flex: 1;
  margin-top: 20px;
  overflow: auto;
}

.content-section {
  margin-bottom: 40px;
  border-top: 2px solid #4a76a8;
  padding-top: 20px;
}

.section-heading {
  background-color: #4a76a8;
  color: white;
  padding: 10px 15px;
  margin-bottom: 20px;
  border-radius: 4px;
  font-size: 1.6em;
}

.content-block {
  margin-bottom: 30px;
  padding: 15px;
  background-color: #f9f9f9;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

header nav ul {
  display: flex;
  justify-content: space-between;
  list-style: none;
}

header nav ul li {
  flex: 1;
  text-align: center;
}

header nav ul {
  display: flex;
  justify-content: space-between;
  list-style: none;
  border: 5px solid black;
  border-radius: 5px;
}

header nav ul li:nth-child(1){
  flex: 1;
  border-right: 4px solid black;
  text-align: center;
}

header nav ul li:nth-child(2){
  flex: 1;
  border-right: 4px solid black;
  text-align: center;
}

header nav ul li:nth-child(3){
  flex: 1;
  border-right: 4px solid black;
  text-align: center;
}

header nav ul li:nth-child(4){
  flex: 1;
  text-align: center;
  border-radius: 1px;
}

header nav ul li a {
  display: block;
  padding: 10px;
  text-decoration: none;
  color: black;
  font-weight: bold;
}

header nav ul li:nth-child(3) a {
  background-color: rgb(128, 209, 247);
}

h1 {
  text-align: center;
  text-decoration: underline;
  margin: 60px 0 40px;
  color: rgb(55, 52, 99);
}

h2 {
  margin: 20px 0 30px;
}

.content-block h2 {
  color: #4a76a8;
  border-bottom: 1px solid #e0e0e0;
  padding-bottom: 8px;
  margin-top: 0;
}

ol li,
.numbered li {
  list-style-type: none;
  padding: 0;
  margin: 10px 0;
}

.numbered li {
  margin: 100px 0;
}


table {
  width: 100%;
  border-collapse: collapse;
  margin: 15px 0;
}

th,
td {
  border: 1px solid #ddd;
  padding: 8px;
  text-align: center;
  vertical-align: middle;
}

th {
  background-color: #f2f2f2;
  font-weight: bold;
}

td {
  background-color: #fdfdfd;
}

td:first-child,
th:first-child {
  width: 120px;
  text-align: left;
}

@media (max-width: 768px) {
  .container {
    width: 90%;
  }

  table {
    font-size: 0.9em;
  }

  header nav ul {
    flex-direction: column;
  }

  .section-heading {
    font-size: 1.3em;
  }
}

body {
  background-color: #1a1a1e;
  background-size: cover;
  background-position: center;
}

nav ul li a:hover,
nav ul li button:hover {
  background-color: rgb(149, 220, 255);
  border-color: rgb(149, 220, 255);
  transition: background-color 0.4s ease, opacity 0.4s ease;
}

.video-container {
  position: relative;
  padding-bottom: 35%;
  overflow: hidden;
  max-width: 62.23%;
  margin-bottom: 20px;
  max-height: 62.23%;
  justify-content: center;
  align-items: center;
  margin: auto;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.line {
  display: block;
  border-bottom: 1px solid #e0e0e0;
  width: 100%;
  margin-bottom: 30px;
  margin-top: 30px;
}

@media (max-width: 768px) {
  header nav ul li:nth-child(1),
  header nav ul li:nth-child(2),
  header nav ul li:nth-child(3),
  header nav ul li:nth-child(4) {
    border-right: none;
  }
}

@media (max-width: 768px) {
  header nav ul li:nth-child(2),
  header nav ul li:nth-child(3),
  header nav ul li:nth-child(4),
  header nav ul li:nth-child(5) {
    border-top: 4px solid black;
  }
}