:root {
  color-scheme: light;
  --bg-color: #f9f9f9;
  --text-color: #333;
  --border-color: #abaaaa;
  --hover-color: #45a049;
  --input-bg: #ffffff;
  --input-text: #000000;
  --button-bg: #4caf50;
  --button-text: #ffffff;
}

#theme-toggle:checked ~ * {
  color-scheme: dark;
  --bg-color: #1e1e1e;
  --text-color: #ffffff;
  --border-color: #555;
  --hover-color: #369c3f;
  --input-bg: #2c2c2c;
  --input-text: #ffffff;
  --button-bg: #4caf50;
  --button-text: #ffffff;
}

#theme-toggle:checked ~ * input,
#theme-toggle:checked ~ * input[list],
#theme-toggle:checked ~ * select{
  border-top-color: #000;   
  border-left-color: #000;  
  border-right-color: var(--border-color);  
  border-bottom-color: var(--border-color); 
  border-width: 2px;
  border-style: solid;
  background-color: var(--input-bg);
  color: var(--input-text);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  align-items: center;
}

html {
  font-size: 16px;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  padding: 20px;
  margin: 0;
}

main {
  display: flex;
  flex-direction: column;
  align-items: center;
}

h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #222;
}

form {
  max-width: 500px;
  width: 100%;
  background-color: var(--bg-color);
  color: var(--text-color);
  padding: 20px;
  margin: 0 10px 10px 10px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.4);
  border: 2px solid var(--border-color);
}

label {
  display: block;
  padding: 0;
  margin-top: 10px;
  color: var(--text-color);
  cursor: pointer;
}

input,
select,
textarea {
  width: 100%;
  padding: 8px;
  height: 40px;
  font-size: 16px;
  border: 2px solid var(--border-color);
  border-radius: 2px;
  background-color: var(--input-bg);
  color: var(--input-text);
}

input[type='color'] {
  height: 40px;
  padding: 0;
  cursor: pointer;
}

input[type='date'] {
  height: 40px;
  padding: 0 8px;
  cursor: pointer;
}

fieldset {
  margin-top: 15px;
  border: 2px solid var(--border-color);
  padding: 10px;
  border-radius: 2px;
}

input[type='radio'],
input[type='checkbox'] {
  width: auto;
  height: auto;
  margin-right: 5px;
  cursor: pointer;
}

input[type="date"] {
  background-color: var(--input-bg);
  color: var(--input-text);
  border: 2px solid var(--border-color);
}

legend {
  padding: 0px 10px;
  color: var(--text-color);
}

#submit {
  background-color: var(--button-bg);
  color: var(--button-text);
  border: none;
  padding: 15px;
  margin-top: 10px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

#submit:hover {
  background-color: var(--hover-color);
}

#theme-icon {
  font-size: 40px;
  cursor: pointer;
  text-align: center;
  margin-bottom: 1rem;
}

nav {
  margin-bottom: 1.25rem;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 0.5rem;
  padding: 0.625rem;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 0.625rem;
}

nav a {
  text-decoration: none;
  color: #007bff;
  font-weight: bold;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  transition: background 0.2s, color 0.2s;
}

nav a[aria-current='page'],
nav li.active > a,
nav a.active {
  pointer-events: none !important;
  cursor: default;
  background-color: #e6f0ff;
  color: #0056b3;
}

nav a:hover {
  background-color: #e6f0ff;
  color: #0056b3;
}

.info-header {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  align-items: center;
  max-width: 500px;
  margin: 10px 10px 0 10px;
}

.info-header h1 {
  font-size: 28px;
  margin-left: 2px;
  text-align: left;
  line-height: 1.5;
}

#submit {
  background-color: #4caf50;
  font-weight: bold;
  width: 100%;
  color: white;
  border: none;
  padding: 15px;
  margin-top: 10px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 8px;
  transition: background-color 0.3s ease;
}

#submit:hover {
  background-color: var(--hover-color);
}