body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  background: linear-gradient(to bottom, #e6f0ff 0%, #f5faff 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  margin: 0;
}

.calculator {
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  padding: 24px;
  max-width: 600px;
  width: 100%;
  box-sizing: border-box;
}

.section {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e5e7eb;
}

.section:last-child {
  border-bottom: none;
}

.inline-label {
  display: inline;
}

.traffic-light {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  margin-left: 8px;
  transition: background-color 0.3s;
}

.finanzierung-fields {
  margin-top: 16px;
  padding-left: 24px;
  border-left: 2px solid #e5e7eb;
}

/* Nummernfelder ohne Pfeile */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input[type="number"] {
  -moz-appearance: textfield;
}

/* Mobile */
@media (max-width: 600px) {
  .calculator {
    padding: 16px;
  }
  h1 {
    font-size: 24px;
  }
}