body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f7f9fc;
  color: #333;
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

.container {
  max-width: 480px;
  margin: 40px auto;
  background: white;
  padding: 20px 30px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  border-radius: 8px;
}

h1 {
  text-align: center;
  color: #005f73;
  margin-bottom: 24px;
}

h2 {
  color: #0a9396;
  margin-bottom: 12px;
  border-bottom: 2px solid #94d2bd;
  padding-bottom: 4px;
}

p {
  line-height: 1.5;
  margin-bottom: 12px;
}

label {
  font-weight: 600;
  margin-bottom: 6px;
  display: block;
}

/* Applies consistent styling to text inputs, dropdowns, and textareas: */
input[type="text"],
input[type="email"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 8px 10px;
  margin-bottom: 16px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 1rem;
  box-sizing: border-box;
  transition: border-color 0.3s ease;
}

/* On focus */
input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
  border-color: #0a9396;
  outline: none;
}

/* Default button style */
button {
  background-color: #0a9396;
  color: white;
  border: none;
  padding: 12px 18px;
  font-size: 1rem;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  display: block;
  width: 100%;
  margin-top: 12px;
}

/* On hover/focus */
button:hover,
button:focus {
  background-color: #005f73;
}

input[type="checkbox"] {
  margin-right: 8px;
  transform: scale(1.1);
  vertical-align: middle;
}

.error {
  color: #d8000c;
  font-weight: 600;
  margin-bottom: 16px;
}

section {
  margin-bottom: 24px;
  background: white;
  padding: 15px 20px;
  border-radius: 6px;
  box-shadow: 0 0 5px #ccc;
}

ul {
  list-style-type: disc;
  padding-left: 20px;
  margin-top: 0;
}

/* Highlights each diagnosis result */
#diagnosis-text p {
  background: #ffe0e0;
  border-left: 4px solid #f44336;
  padding: 8px 12px;
  margin: 8px 0;
  border-radius: 4px;
}

/* Centers the download and restart buttons and adds spacing below */
#buttons-container {
  text-align: center;
  margin-bottom: 40px;
}

#download-btn {
  background-color: #4caf50;
  width: auto;
  padding: 10px 25px;
  margin-right: 10px;
}

#download-btn:hover {
  background-color: #388e3c;
}

#restart-btn {
  background-color: #f44336;
  width: auto;
  padding: 10px 25px;
}

#restart-btn:hover {
  background-color: #d32f2f;
}

/* On small screens */
@media (max-width: 500px) {
  .container {
    margin: 20px 15px;
    padding: 15px 20px;
  }

  #download-btn, #restart-btn {
    width: 48%;
    margin: 6px 1%;
    display: inline-block;
  }
}