body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f7f7f7;
  overflow-x: hidden;
}

/* Navigation */
#nav {
  position: fixed;
  top: 20px;
  left: 20px;
  width: 180px;
  padding: 20px;
  background: white;
  border: 2px solid #1e3a47;
  border-radius: 10px;
}

#nav h1 {
  margin-top: 0;
  margin-bottom: 20px;
  font-size: 22px;
}
#nav a {
  display: block;
  margin: 10px 0;
  text-decoration: none;
  color: #1e3a47;
  font-size: 18px;
}

/* Draggable blocks */
.block {
  position: absolute;
  width: 220px;
  height: 150px;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 40px;
  cursor: grab;
  user-select: none;
}

/* Your colors */
.b2 { background: #050d03; }       /* darkest */
.b3 { background: #dcd4c1; }       /* lightest */
.b4 { background: #768452; }       /* green */
.b5 { background: #bb8252; }       /* orangey */

/* Social links */
#social {
  position: fixed;
  right: 20px;
  top: 40%;
  background: white;
  border: 2px solid #1e3a47;
  border-radius: 20px;
  padding: 10px 15px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  font-size: 20px;
  text-align: center;
}
#social a {
  text-decoration: none;
  color: #1e3a47;
  font-weight: bold;
}

/* Responsive */
@media (max-width: 768px) {
  #nav {
    width: 150px;
    padding: 15px;
  }
  #nav h1 { font-size: 18px; }
  #nav a { font-size: 16px; }

  .block {
    width: 160px;
    height: 110px;
    font-size: 28px;
  }

  #social {
    right: 10px;
    top: auto;
    bottom: 20px;
    flex-direction: row;
    padding: 8px 12px;
  }
}