.b64-to-text-tool {
  font-family: Arial, sans-serif;
  max-width: 700px;
  margin: 30px auto;
  background: #fff;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  text-align: center;
}

.b64-to-text-title {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: #222;
}

.b64-to-text-input,
.b64-to-text-result {
  width: 100%;
  height: 120px;
  padding: 10px;
  font-size: 1rem;
  border-radius: 6px;
  border: 1px solid #ccc;
  margin-bottom: 15px;
  resize: none;
}

.b64-to-text-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 20px;
}

.b64-to-text-btn {
  background-color: #4CAF50;
  color: #fff;
  border: none;
  padding: 10px 18px;
  font-size: 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.b64-to-text-btn:hover { background-color: #45a049; }

.b64-to-text-output h3 {
  text-align: left;
  margin-bottom: 8px;
  color: #333;
}

@media (max-width: 600px) {
  .b64-to-text-input,
  .b64-to-text-result { height: 100px; }
  .b64-to-text-btn { flex: 1 1 100%; }
}