*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Inter", sans-serif;
}

body {
  background: #f5f6fa;
  color: #222;
  text-align: center;
  animation: fadeSlide 0.8s ease-out forwards;
  opacity: 0;
}

@keyframes fadeSlide {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

textarea {
  max-width: 90%;
  width: 500px;
  padding: 12px;
  border: 2px solid #ddd;
  border-radius: 8px;
  font-size: 1.1rem;
  outline: none;
  transition: border-color 0.25s ease;
}

textarea:focus {
  border-color: #4a90e2;
}

.main-text {
  margin: 25px 0;
}

.title {
  font-size: 2.4rem;
  font-weight: 700;
}

.description {
  margin-top: 15px;
  font-size: 1.2rem;
  color: #444;
}

.message-label {
  display: block;
  margin-bottom: 20px;
  font-size: 1.3rem;
  font-weight: 600;
}

#message-input::placeholder {
  color: #aaa;
}

.btn {
  cursor: pointer;
  width: 200px;
  margin: 20px auto;
  padding: 12px 0;
  background: #4a90e2;
  border: none;
  border-radius: 8px;
  color: white;
  font-size: 1.1rem;
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease;
}

.btn:hover {
  background: #3b7ac0;
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

#result {
  font-size: 1.8rem;
  margin: 25px 0;
  font-weight: 600;
}

.footer {
  margin-top: 20px;
  font-size: 0.9rem;
  color: #666;
}