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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #e0f7fa, #e1bee7);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: #333;
}

button {
  padding: 12px 25px;
  font-size: 1rem;
  background-color: #673ab7;
  color: #fff;
  border: none;
  border-radius: 30px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

button:hover {
  background-color: #5e35b1;
  transform: scale(1.05);
}

h2 {
  margin: 25px 0 10px;
  font-size: 1.6rem;
  color: #444;
  margin-top: 40px;
  margin-bottom: 40px;
}

div {
  border-radius: 15px;
  width: 400px;
  height: 200px;
  background-color: #fff;
  border: 2px solid #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #000;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
  transition: background-color 0.4s ease;
}

footer {
  padding: 20px 0;
  text-align: center;
  background-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  font-size: 1rem;
  margin-top: 40px;
  width: 100%;
  margin-bottom: -80px;
}

footer a {
  text-decoration: none;
  color: #512da8;
  font-weight: 500;
  margin: 0 10px;
  display: inline-flex;
  align-items: center;
  transition: color 0.3s;
}

footer a:hover {
  color: #311b92;
}

footer img {
  margin-right: 6px;
  filter: grayscale(100%);
  transition: filter 0.3s, transform 0.3s;
}

footer a:hover img {
  filter: none;
  transform: scale(1.1);
}