#app{min-height:100vh}*{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:#f5f5f5}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{display:inline-block;padding:10px 20px;border:none;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;text-decoration:none}.btn-primary{background-color:#3b82f6;color:#fff}.btn-primary:hover{background-color:#2563eb}.btn-secondary{background-color:#6b7280;color:#fff}.btn-secondary:hover{background-color:#4b5563}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;font-weight:500;color:#374151}.form-input{width:100%;padding:10px 12px;border:1px solid #d1d5db;border-radius:6px;font-size:14px;transition:border-color .2s}.form-input:focus{outline:none;border-color:#3b82f6}.card{background:#fff;border-radius:8px;padding:24px;box-shadow:0 1px 3px #0000001a}.alert{padding:12px 16px;border-radius:6px;margin-bottom:16px}.alert-error{background-color:#fee2e2;color:#991b1b;border:1px solid #fecaca}.alert-success{background-color:#d1fae5;color:#065f46;border:1px solid #a7f3d0}.loading{display:flex;justify-content:center;align-items:center;padding:40px}.spinner{width:40px;height:40px;border:4px solid #f3f4f6;border-top-color:#3b82f6;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}