* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #0a1a2e 0%, #16213e 100%);
  color: #e6edf3;
  min-height: 100vh;
  padding: 20px;
}
.container {
  max-width: 800px;
  margin: 0 auto;
}
h1 { text-align: center; margin-bottom: 10px; }
.subtitle { text-align: center; color: #888; margin-bottom: 30px; }
.input-section {
  background: rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}
.inputs { display: flex; flex-direction: column; gap: 15px; }
.input-group {
  display: flex;
  align-items: center;
  gap: 10px;
}
.input-group label { width: 180px; }
.input-group input { flex: 1; }
.input-group span { width: 60px; text-align: right; }
button {
  display: block;
  margin: 20px auto;
  padding: 12px 30px;
  background: #4a90d9;
  border: none;
  border-radius: 6px;
  color: white;
  font-size: 16px;
  cursor: pointer;
}
button:hover { background: #357abd; }
.result-section {
  background: rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
}
.result-section h2 { margin-bottom: 15px; }
.hidden { display: none; }
.risk-high { color: #ff6b6b; }
.risk-medium { color: #ffd93d; }
.risk-low { color: #6bcb77; }