:root {
  /* Main theme */
  --background: #ffffff;
  --foreground: #000000;
  --card: #f8f9fa;
  --popover: #ffffff;
  --primary: #2563eb;
  --secondary: #f1f5f9;
  --muted: #64748b;
  --accent: #f59e0b;
  --destructive: #ef4444;
  --border: #e2e8f0;
  --input: #e2e8f0;
  --ring: #93c5fd;
  --radius: 0.5rem;
  --chart-1: #3b82f6;
  --chart-2: #10b981;
  --chart-3: #f59e0b;
  --chart-4: #ef4444;
  --chart-5: #8b5cf6;

  /* File manager theme */
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-tertiary: #0f3460;
  --text-primary: #e94560;
  --text-secondary: #00d9ff;
  --filemanager-border: #533483;
}

.navbar {
  background: var(--background);
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.mobile-menu-btn {
  display: none;
}

.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-links a {
  color: var(--foreground);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
}

.nav-links a:hover {
  background: var(--secondary);
}

.footer {
  background: var(--background);
  padding: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 2rem;
  justify-content: center;
}

.shortcut-group {
  display: flex;
  gap: 1rem;
}

.shortcut-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
}

.shortcut-btn .key {
  font-weight: bold;
  color: var(--primary);
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }
  
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    background: var(--background);
    width: 100%;
    left: 0;
    padding: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }
  
  .nav-links.hidden {
    display: none;
  }
  
  .nav-links:not(.hidden) {
    display: flex;
  }
  
  .shortcut-group {
    flex-wrap: wrap;
  }
}