body {
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(90deg, #1c1c1c, #6220fb);
  font-family: Arial, sans-serif;
}

.container {
  width: 100%;
  max-width: 600px;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-y: auto;
  padding: 20px;
  box-sizing: border-box;
}

.form_main {
  width: 100%;
  max-height: 100%;
  padding: 20px;
  background: #2f2f2f;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  border-radius: 5px;
  border: 2px solid #522afb;
  box-shadow: 4px 4px #1c1c1c;
  overflow-y: auto;
}

.heading {
  color: #fff;
  font-weight: 900;
  font-size: 20px;
  margin-bottom: 25px;
}

.inputContainer {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.labelField {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
}

.inputField {
  width: 250px;
  height: 40px;
  border-radius: 5px;
  border: 2px solid #522afb;
  background-color: #1c1c1c;
  box-shadow: 4px 4px #1c1c1c;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  padding: 5px 10px;
  outline: none;
}

.inputField::placeholder {
  color: #666;
  opacity: 0.8;
}

.inputField:focus {
  border: 2px solid #2d8cf0;
}

#calculateButton, #backButton {
  margin: 20px auto 0 auto;
  width: 160px;
  height: 40px;
  border-radius: .5rem;
  border: none;
  background-image: linear-gradient(90deg, #2f2f2f, #522afb);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  transition: all 0.3s;
  text-transform: uppercase;
  letter-spacing: 1px;
}

#calculateButton:active, #backButton:active {
  box-shadow: 0px 0px #1c1c1c;
  transform: translate(3px, 3px);
}

#calculateButton:hover, #backButton:hover {
  padding: 15px 50px;
  transition: all 0.3s;
}

.resultField {
  color: #fff;
  font-weight: 600;
  font-size: 18px;
  margin-top: 20px;
}