*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #0078d4;--secondary-color: #106ebe;--background-color: #f5f5f5;--text-color: #333;--border-color: #e0e0e0;--success-color: #107c10;--error-color: #d13438;--warning-color: #ffaa44}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-color:var(--background-color);color:var(--text-color);line-height:1.6}a{color:var(--primary-color);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit;font-size:inherit}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.card{background:#fff;border-radius:8px;box-shadow:0 2px 4px #0000001a;padding:1.5rem;margin-bottom:1rem}.btn{display:inline-block;padding:.5rem 1rem;border:none;border-radius:4px;font-size:.875rem;transition:background-color .2s}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--secondary-color);text-decoration:none}.btn-secondary{background-color:#6c757d;color:#fff}.btn-secondary:hover{background-color:#5a6268;text-decoration:none}.form-group{margin-bottom:1rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500}.form-input{width:100%;padding:.5rem .75rem;border:1px solid var(--border-color);border-radius:4px;font-size:1rem}.form-input:focus{outline:none;border-color:var(--primary-color)}.loading{display:flex;align-items:center;justify-content:center;min-height:200px}.spinner{border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-message{background-color:#fde8e8;color:var(--error-color);padding:.75rem 1rem;border-radius:4px;margin-bottom:1rem}.success-message{background-color:#e8f5e9;color:var(--success-color);padding:.75rem 1rem;border-radius:4px;margin-bottom:1rem}