body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: url("background.jpg") no-repeat center center fixed;
  background-size: cover;
  color: white;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  text-align: center;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.6);
}

.menu {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  padding: 2rem;
  justify-items: center;
  align-items: center;
}

.card {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  width: 200px;
  height: 150px;
  border-radius: 12px;
  font-size: 1.2rem;
  font-weight: bold;
  text-decoration: none;
  color: white;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 16px rgba(0,0,0,0.3);
}

.red { background-color: #e74c3c; }
.blue { background-color: #3498db; }
.green { background-color: #2ecc71; }
.yellow { background-color: #f1c40f; color: black; }

footer {
  text-align: center;
  padding: 0.5rem;
  background: rgba(0, 0, 0, 0.6);
  font-size: 0.9rem;
}
body {
  font-family: Arial, sans-serif;
  background-color: #e8edef;
  margin: 0;
  padding: 0;
  text-align: center;
}
header {
  background-color: #2c3e50;
  padding: 20px;
  color: white;
  font-size: 24px;
  font-weight: bold;
}
a {
  color: white;
  text-decoration: none;
  font-size: 14px;
}
.section {
  margin: 40px auto;
  max-width: 500px;
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}
h2 {
  margin-bottom: 15px;
}
input, button {
  padding: 10px;
  margin: 5px;
  border-radius: 5px;
  border: 1px solid #ccc;
}
button {
  cursor: pointer;
  background: #3498db;
  color: white;
  border: none;
}
button.done {
  background: #e74c3c;
}
ul {
  list-style: none;
  padding: 0;
}
li {
  background: #f9f9f9;
  margin: 8px 0;
  padding: 10px;
  border-radius: 5px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}