body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: #e5e7eb;
}

.container {
  max-width: 700px;
  margin: 60px auto;
  text-align: center;
}

h1 {
  margin-bottom: 10px;
}

.subtitle {
  color: #94a3b8;
  margin-bottom: 20px;
}

textarea {
  width: 100%;
  height: 120px;
  padding: 10px;
  border-radius: 8px;
  border: none;
  margin-bottom: 20px;
  font-size: 14px;
}

button {
  padding: 10px 20px;
  background: #38bdf8;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
}

.result-box {
  margin-top: 20px;
  padding: 15px;
  border-radius: 8px;
  text-align: left;
}

.hidden {
  display: none;
}

.safe {
  background: #064e3b;
}

.warning {
  background: #78350f;
}

.danger {
  background: #7f1d1d;
}