body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}
header {
    background: #333;
    color: #fff;
    padding: 1rem 0;
    text-align: center;
}
nav {
    display: flex;
    justify-content: center;
    background: #444;
    padding: 0.5rem 0;
}
nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 1rem;
}
nav a:hover {
    text-decoration: underline;
}
.hero {
    text-align: center;
    padding: 2rem;
    background: #f4f4f4;
}
footer {
    text-align: center;
    padding: 1rem;
    background: #333;
    color: #fff;
    position: fixed;
    bottom: 0;
    width: 100%;
}

.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
}

.theme-switch input {
  display: none;
}

.slider {
  width: 40px;
  height: 20px;
  background-color: #ccc;
  border-radius: 20px;
  position: relative;
  transition: background-color 0.3s;
}

.slider::before {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  left: 1px;
  top: 1px;
  background-color: white;
  border-radius: 50%;
  transition: transform 0.3s;
}

input:checked + .slider {
  background-color: #666;
}

input:checked + .slider::before {
  transform: translateX(20px);
}

.dark-mode {
  background-color: #121212;
  color: #f0f0f0;
}

.dark-mode footer {
  background-color: #222;
  color: #ccc;
}

.dark-mode h2 {
  background-color: #222;
  color:#fff;
}

.dark-mode p {
  background-color: #222;
  color:#fff;
}

.dark-mode section {
  background-color: #222;
  color: white;
}