*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #2563eb;--secondary-color: #1e40af;--background-color: #ffffff;--text-color: #1f2937;--border-color: #e5e7eb;--error-color: #dc2626;--success-color: #16a34a}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--background-color);color:var(--text-color);line-height:1.6}#root{min-height:100vh}h1,h2,h3,h4,h5,h6{margin-bottom:1rem;font-weight:600}button{cursor:pointer;font-family:inherit;border:none;background:none}.container{max-width:1200px;margin:0 auto;padding:2rem}.button-primary{background-color:var(--primary-color);color:#fff;padding:.75rem 1.5rem;border-radius:.5rem;font-weight:500;transition:background-color .2s}.button-primary:hover{background-color:var(--secondary-color)}.button-secondary{background-color:transparent;color:var(--primary-color);padding:.75rem 1.5rem;border:2px solid var(--primary-color);border-radius:.5rem;font-weight:500;transition:all .2s}.button-secondary:hover{background-color:var(--primary-color);color:#fff}.card{background:#fff;border:1px solid var(--border-color);border-radius:.75rem;padding:1.5rem;box-shadow:0 1px 3px #0000001a}input,textarea,select{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:.5rem;font-family:inherit;font-size:1rem}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}label{display:block;margin-bottom:.5rem;font-weight:500}.error-message{color:var(--error-color);font-size:.875rem;margin-top:.25rem}.loading{display:inline-block;width:1rem;height:1rem;border:2px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}