/* Загальні стилі */

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f1f1f1;
}

/* Стилі для шапки */

header {
  display: flex;
  position: fixed;
  z-index: 999;
  align-items: center;
  justify-content: center;
  width: 100%;
  background-color: #333;
  color: #fff;
  padding: 24px;
}

nav ul {
  display: flex;
  gap: 24px;
  justify-content: center;
  list-style-type: none;
  margin: 0;
  padding: 0;
}

nav ul li {
  display: inline;
  margin-right: 24px;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
}

/* Стилі для основного контенту */

main {
  padding: 24px;
}

section h1 {
  font-size: 40px;
  margin-top: 50px;
  margin-bottom: 50px;
}

section p {
  font-size: 22px;
  margin-bottom: 40px;
}

section ul {
  margin-left: 0px;
}

section ul li {
  font-size: 18px;
  margin-bottom: 20px;
}

#about {
  margin-top: 50px;
  margin-bottom: 60px;
}

#about h2 {
  margin-top: 40px;
  margin-bottom: 40px;
}

#services {
  background-color: #38343d;
  color: #fff;
  margin-top: 40px;
  margin-bottom: 40px;
  padding: 20px;
}

#services form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 10px;
}

#services form label {
  font-size: 20px;
  margin-bottom: 0px;
  margin-top: 20px;
}

#services form input[type="number"] {
  padding: 10px;
  border: none;
  border-radius: 4px;
}

#services form input[type="submit"] {
  background-color: #333;
  color: #fff;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

#services form button {
  font-size: 18px;
  cursor: pointer;
}

#results {
  margin-top: 40px;
  margin-bottom: 40px;
}

#results h3:hover {
  cursor: help;
}

#chartContainer {
  display: flex;
  width: 50%;
  margin-bottom: 20px;
}

footer {
  font-size: 16px;
  padding: 20px;
}

/* Медіа-запити для адаптивності */

@media screen and (max-width: 768px) {
  nav ul li {
    display: block;
    margin-right: 0;
    margin-bottom: 10px;
  }

  #services form {
    grid-template-columns: 1fr;
  }
}

@media screen and (max-width: 480px) {
  section h1 {
    font-size: 30px;
  }
}