:root {
  --primary-color: #007bff;
  --accent-color: #ffc107;
  --bg-color-light: #ffffff;
  --bg-color-dark: #121212;
  --text-color-light: #000000;
  --text-color-dark: #ffffff;
  --font-main: 'Rubik', sans-serif;
}

html, body {
  font-family: var(--font-main);
  transition: all 0.3s ease;
}

[data-theme="light"] {
  background-color: var(--bg-color-light);
  color: var(--text-color-light);
}

[data-theme="dark"] {
  background-color: var(--bg-color-dark);
  color: var(--text-color-dark);
}

[data-theme="dark"] .card {
  background-color: #1f1f1f;
  color: var(--text-color-dark);
}

[data-theme="dark"] .navbar, 
[data-theme="dark"] footer {
  background-color: #1a1a1a;
  color: white;
}

a {
  text-decoration: none;
}

.card i {
  margin-bottom: 10px;
}

#themeToggle {
  border: none;
  background: none;
  color: var(--primary-color);
}