/* Light Mode */
body:not(.dark-mode) {
  background-color: #ffffff;
  color: #121212;
}

body:not(.dark-mode) #dataanalysis {
  background-color: #f9f9f9;
}

body:not(.dark-mode) #dataanalysis ul li {
  background-color: #e0e0e0;
  color: #121212;
}

body:not(.dark-mode) footer {
  background-color: #f1f1f1;
  color: #121212;
}

/* Dark Mode */
body.dark-mode {
  background-color: #121212;
  color: #f0f0f0;
}

body.dark-mode #dataanalysis {
  background-color: #1e1e1e;
}

body.dark-mode #dataanalysis ul li {
  background-color: #34495e;
  color: #ffffff;
}

body.dark-mode footer {
  background-color: #030303;
  color: #ecf0f1;
}

/* Common Section Styling */
#dataanalysis {
  padding: 60px 0;
}

#dataanalysis h2 {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 30px;
}

#dataanalysis ul {
  list-style: none;
  padding: 0;
  max-width: 900px;
  margin: 0 auto;
}

#dataanalysis ul li {
  margin: 15px 0;
  padding: 15px;
  border-radius: 8px;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

#dataanalysis ul li:hover {
  background-color: white;
  color: #2c3e50;
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Footer */
footer {
  text-align: center;
  padding: 20px 0;
}

/* Theme Toggle Button */
.theme-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: #1e1e1e;
  color: #ffffff;
  border: none;
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 1.4rem;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  transition: background-color 0.3s ease, transform 0.2s ease;
  z-index: 1000;
}

.theme-toggle:hover {
  background-color: #333;
  transform: scale(1.08);
}