:root{--bg-primary: #ffffff;--bg-secondary: #f9fafb;--text-primary: #1f2937;--text-secondary: #6b7280;--border-primary: #e5e7eb;--accent-primary: #2563eb;--accent-hover: #3776fe}:root.dark{--bg-primary: #1f2937;--bg-secondary: #111827;--text-primary: #f9fafb;--text-secondary: #d1d5db;--border-primary: #374151;--accent-primary: #2563eb;--accent-hover: #3776fe}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;color:#333;background-color:#fff}#app{min-height:100vh}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;white-space:nowrap;border-radius:.375rem;font-size:.875rem;font-weight:500;transition:all .2s;cursor:pointer;border:none;text-decoration:none}.btn-primary{background-color:#2563eb;color:#fff;padding:.5rem 1rem}.btn-primary:hover{background-color:#3776fe}