body {
  margin: 0;
  font-family: Verdana, sans-serif;
  background: #ffe9b8;
  background-image: linear-gradient(45deg, #ffe9b8 25%, #fff1cc 25%, #fff1cc 50%, #ffe9b8 50%, #ffe9b8 75%, #fff1cc 75%);
  background-size: 40px 40px;
}

#container {
  width: 1000px;
  margin: 20px auto;
  background: #ffd6e7;
  border: 4px solid #f7a8c4;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(0,0,0,0.15);
}

#header {
  background: linear-gradient(#ffb6d3, #ffa6c8);
  padding: 25px;
  text-align: center;
  border-bottom: 4px dashed #fff;
}

#header h1 {
  margin: 0;
  font-size: 40px;
  letter-spacing: 3px;
  color: white;
  text-shadow: 2px 2px #ff6fa5;
}

#layout {
  display: grid;
  grid-template-columns: 200px 1fr 240px;
  gap: 15px;
  padding: 15px;
}

.sidebar {
  background: #ffeef5;
  border: 3px solid #ffc2da;
  border-radius: 10px;
  padding: 10px;
}

.navbtn {
  display: block;
  background: linear-gradient(#ffb6d3, #ff9ec4);
  color: white;
  text-decoration: none;
  padding: 10px;
  margin: 8px 0;
  border-radius: 8px;
  text-align: center;
  font-weight: bold;
  border: 2px solid #fff;
}

.navbtn:hover {
  background: linear-gradient(#ffa6c8, #ff8fba);
}

.card {
  background: #fff6e8;
  border: 3px dashed #ffb7cf;
  border-radius: 12px;
  padding: 15px;
  margin-bottom: 15px;
}

.card h2 {
  margin-top: 0;
  color: #ff6fa5;
}

.button-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.button-grid img {
  width: 100%;
}

.extra-box {
  background: #fff6e8;
  border: 3px dotted #ffc2da;
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 12px;
  font-size: 14px;
}

#footer {
  text-align: center;
  padding: 12px;
  background: #ffc2da;
  color: white;
  font-size: 13px;
  border-top: 3px dashed white;
}