body {
  font-family: "Segoe UI", sans-serif;
  background-color: #f5f7fa;
  color: #333;
  margin: 0;
  padding: 0;
}

.container {
  width: 90%;
  max-width: 800px;
  margin: 40px auto;
  background: white;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
}

h1 {
  text-align: center;
  color: #0066cc;
}

label {
  display: block;
  margin-top: 15px;
  font-weight: bold;
}

select, textarea, button {
  width: 100%;
  margin-top: 8px;
  padding: 10px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 15px;
}

button {
  background-color: #0066cc;
  color: white;
  cursor: pointer;
  border: none;
  margin-top: 20px;
}

button:hover {
  background-color: #0052a3;
}

.result {
  margin-top: 25px;
  padding: 15px;
  border-radius: 6px;
}

.success {
  background-color: #e0ffe0;
  color: #2b7a2b;
  border: 1px solid #2b7a2b;
}

.error {
  background-color: #ffe0e0;
  color: #a32b2b;
  border: 1px solid #a32b2b;
}

ul {
  margin: 10px 0 0 20px;
}

.result ul {
  max-height: 200px;
  overflow-y: auto;
  padding-left: 1rem;
  margin-top: 0.5rem;
}
.result li {
  margin-bottom: 0.4rem;
  font-family: monospace;
}