* {
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  margin: 0;
  padding: 0;
  background-color: #fffaf0; /* soft cream */
}

header {
  background-color: #ffdd99;
  padding: 15px;
  text-align: center;
  border-bottom: 3px solid #ffcc66;
}

header h1 {
  color: #331a00;
}

header p {
  color: #331a00;
  margin-top: 5px;
}

ul.topnav {
  display: flex;
  list-style: none;
  margin:0;
  padding:0;
  background-color: #331a00;
}

ul.topnav li a {
  display: block;
  color: #f1f1f1;
  padding: 14px 20px;
  text-decoration: none;
  transition: 0.3s;
}

ul.topnav li a:hover {
  background-color: #f1c27d;
  color: #331a00;
}

h2.page-title {
  text-align: center;
  color: #331a00;
  margin-top: 25px;
}

/* Flex container */
div.flex-container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin: 20px;
}

div.flex-container > div {
  flex: 1;
  min-width: 250px;
  max-width: 300px;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 6px 15px rgba(0,0,0,0.1);
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

div.flex-container > div:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

div.flex-container > div h3 {
  color: #331a00;
  margin-bottom: 10px;
}

div.flex-container > div p {
  font-size: 15px;
  line-height: 1.5;
  color: #331a00;
}

/* Box colors */
#activity1 { background-color: #cce5ff; } /* blue */
#activity2 { background-color: #d4edda; } /* green */
#activity3 { background-color: #fff3cd; } /* yellow */
#activity4 { background-color: #ffd6e0; } /* pink */

footer {
  background-color: #331a00;
  color: white;
  text-align: center;
  padding: 20px;
  font-size: 15px;
  margin-top: 20px;
  border-top: 3px solid #ffcc66;
}

@media screen and (max-width:900px) {
  div.flex-container {
    flex-direction: column;
    align-items: center;
  }
}