:root {
  --bg-color: #121212;
  --text-color: #ffffff;
  --sidebar-bg: #1e1e1e;
  --nav-active: #0a84ff;
}

[data-theme="light"] {
  --bg-color: #ffffff;
  --text-color: #333333;
  --sidebar-bg: #f0f0f0;
  --nav-active: #007aff;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
}

html:not([data-theme]) body {
  display: none;
}


.loading {
  transition: none;
}

.container {
  display: flex;
  min-height: 100vh;
}

.content {
  flex: 1;
  padding: 20px;
  padding-bottom: 80px; /* Space for mobile nav */
}

/* Navigation styles */
nav {
  background-color: var(--sidebar-bg);
  transition: background-color 0.3s;
}

.nav-link {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--text-color);
}

.nav-link.active {
  color: var(--nav-active);
}

.nav-icon {
  margin-right: 8px;
  font-size: 1.2em;
}

/* Theme toggle */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5em;
  color: var(--text-color);
}

/* Mobile navigation (bottom) */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    display: flex;
    justify-content: space-around;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
  }

  .nav-link {
    flex-direction: column;
    font-size: 0.8em;
    padding: 8px 0;
  }

  .nav-icon {
    margin-right: 0;
    margin-bottom: 4px;
  }
}

/* Desktop navigation (sidebar) */
@media (min-width: 769px) {
  .sidebar {
    width: 220px;
    min-height: 100vh;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
  }

  .nav-link {
    padding: 12px 24px;
  }
}