html {
  height: -webkit-fill-available;
}

* {
  box-sizing: border-box;
}

body {
  font-family: sans-serif;
  background: #f2f4f7;
  margin: 0;
}

.container {
  max-width: 600px;
  margin: auto;
  padding: 20px;
}

h1 {
  text-align: center;
  margin-bottom: 20px;
}

.card {
  background: white;
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

label {
  display: block;
  margin-top: 10px;
  font-size: 14px;
}

input, select {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  border: 1px solid #ddd;
  border-radius: 6px;
}

button {
  width: 100%;
  padding: 14px;
  margin-top: 20px;
  background: #ff8c42;
  border: none;
  color: white;
  font-size: 18px;
  border-radius: 10px;
}

#calc {
  margin-bottom: 20px;
}

#resultPage {
  display: none;
}

.resultCard {
  background: #fff8ef;
  padding: 20px;
  border-radius: 10px;
  font-size: 18px;
}