* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}

body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: radial-gradient(circle at top, #1f1c2c, #0f0c29);
  color: #fff;
}

/* Container */
.container {
  width: 90%;
  max-width: 600px;
  padding: 25px;
  border-radius: 16px;
  background: #15142b;
  box-shadow: 0 0 30px rgba(0, 255, 255, 0.15);
  border: 1px solid rgba(0,255,255,0.2);
}

/* Title */
h1 {
  text-align: center;
  margin-bottom: 20px;
  color: #00f7ff;
}

/* Textarea */
textarea {
  width: 95%;
  height: 140px;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid rgba(0,255,255,0.3);
  background: #0f0c29;
  color: white;
  outline: none;
  margin-bottom: 15px;
  transition: 0.3s;
}

textarea:focus {
  border-color: #00f7ff;
  box-shadow: 0 0 10px rgba(0,255,255,0.4);
}

/* Buttons */
.btn-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 15px;
}

button {
  padding: 20px;
  border-radius: 8px;
  border: none;
  background: #00f7ff;
  color: black;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #00c6cc;
  box-shadow: 0 0 10px #00f7ff;
}

/* Output */
#output {
  background: #0f0c29;
  padding: 12px;
  border-radius: 10px;
  min-height: 120px;
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid rgba(0,255,255,0.3);
  line-height: 1.5;
  white-space: pre-line;
}

/* Output title */
h3 {
  margin-bottom: 8px;
  color: #00f7ff;
}