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

/* Global body */
body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background-color: #f0f4f8;
  color: #222;
  line-height: 1.6;
  margin: 0;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  background: linear-gradient(90deg, #4c8c4a, #6fbf73);
  color: white;
  padding: 20px;
  border-bottom: 5px solid #3b7137;
}

.header img.logo {
  width: 80px;
  height: auto;
  border-radius: 10px;
}

/* General section divs */
.SubDiv {
  background-color: rgb(153, 193, 228);
  border-radius: 10px;
  padding: 20px;
  margin: 20px auto;
  width: 90%;
  max-width: 900px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.SubDiv h2 {
  color: #333;
  margin-bottom: 10px;
}

.SubDiv h3 {
  font-weight: normal;
  color: #555;
  margin: 8px 0;
}

/* Lists */
ul {
  margin: 10px 0 10px 25px;
}

/* Links */
a {
  color: #1DB954; /* Spotify green */
  text-decoration: none;
  font-weight: bold;
}

a:hover {
  text-decoration: underline;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
  font-size: 16px;
}

th, td {
  border: 1px solid #ccc;
  padding: 10px;
  text-align: left;
}

th {
  background-color: #333;
  color: white;
}

tr:nth-child(even) {
  background-color: #f2f2f2;
}

tr:nth-child(odd) {
  background-color: #ffffff;
}

tr:hover {
  background-color: #eaf5ea;
}

/* Responsive iframe */
iframe {
  border-radius: 10px;
  max-width: 100%;
  display: block;
  margin: 10px auto;
}