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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #ffffff;
  color: #222;
  padding: 0px;
}

.wrapper {
  max-width: 800px;
  margin: auto;
}

.tool-box {
  background-color: #ffffff;
  padding: 25px;
  border-radius: 12px;
  border: 1px solid #d1fae5;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.1);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

h1 {
  font-size: 28px;
  text-align: center;
  color: #222;
}

p {
  text-align: center;
  font-size: 16px;
  color: #666;
}

label {
  font-weight: bold;
  color: #333;
}

textarea {
  width: 100%;
  min-height: 120px;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid #ccc;
  font-size: 15px;
  resize: vertical;
  background-color: #f9f9f9;
  color: #222;
}

textarea:focus {
  outline: none;
  border-color: #888;
  background-color: #fff;
}

.button-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.button-row button {
  flex: 1;
  padding: 12px;
  font-size: 15px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background-color 0.3s ease;
  background-color: #007BFF;
  color: #fff;
}

.button-row .reset-btn {
  background-color: #dc3545;
}

.button-row .reset-btn:hover {
  background-color: #c82333;
}

.button-row button:hover {
  background-color: #0056b3;
}

.button-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.button-group button {
  flex: 1;
  padding: 12px;
  font-size: 15px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background-color: #28a745;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background-color 0.3s ease;
}

.button-group button:hover {
  background-color: #218838;
}

@media (max-width: 600px) {
  .button-row button,
  .button-group button {
    flex: 1 1 100%;
  }
}