/* Reset basic styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #3a0ca3, #7209b7, #f72585);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.container {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(15px);
  border-radius: 15px;
  padding: 30px 40px;
  width: 100%;
  max-width: 450px;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
}

h1 {
  text-align: center;
  margin-bottom: 25px;
  font-size: 26px;
  color: #ffffff;
}

label {
  display: block;
  margin-top: 15px;
  margin-bottom: 5px;
  font-weight: bold;
  color: #e0e0e0;
}

input {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  background: #ffffff;
  color: #333;
  box-shadow: inset 0 0 5px rgba(0,0,0,0.1);
}

input:focus {
  outline: none;
  border: 2px solid #f72585;
  background: #fff;
}

button {
  width: 100%;
  padding: 12px;
  margin-top: 25px;
  background: #f72585;
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s ease;
  box-shadow: 0 5px 15px rgba(247, 37, 133, 0.4);
}

button:hover {
  background: #d61f73;
}

pre#output {
  margin-top: 20px;
  background: rgba(0, 0, 0, 0.3);
  padding: 15px;
  border-radius: 10px;
  max-height: 200px;
  overflow-y: auto;
  font-size: 13px;
  color: #e0e0e0;
}