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

body {
  font-family: Arial, sans-serif;
  background: #f4f7fb;
  color: #1f2937;
  min-height: 100vh;
  padding: 32px 16px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
}

h1 {
  font-size: 2rem;
  margin-bottom: 8px;
  text-align: center;
}

.subtitle {
  text-align: center;
  margin-bottom: 24px;
  color: #4b5563;
}

.card {
  background: white;
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

label {
  display: block;
  font-weight: bold;
  margin-bottom: 10px;
}

textarea {
  width: 100%;
  min-height: 180px;
  padding: 12px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  resize: vertical;
  font-size: 1rem;
  margin-bottom: 16px;
}

.buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

button {
  border: none;
  background: #2563eb;
  color: white;
  padding: 12px 18px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: bold;
  transition: 0.2s ease;
}

button:hover {
  opacity: 0.9;
}

button.secondary {
  background: #6b7280;
}

h2 {
  margin-bottom: 12px;
}

ul {
  padding-left: 20px;
}

li {
  margin-bottom: 8px;
}

.result {
  background: #f8fafc;
  border: 1px solid #dbeafe;
  border-radius: 10px;
  padding: 16px;
  min-height: 100px;
  white-space: pre-line;
}