*{box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;margin:0;padding:0;background:#fafafa;color:#1a202c}.page-container{max-width:900px;margin:0 auto;padding:2rem}h1{font-size:2rem;margin-bottom:.5rem;color:#1a202c}h2{font-size:1.25rem;color:#2d3748;margin-bottom:1rem}.subtitle{color:#666;margin-bottom:2rem}.back-link{display:inline-block;color:#007acc;text-decoration:none;margin-bottom:1.5rem}.back-link:hover{text-decoration:underline}.card{background:#fff;border:1px solid #e0e0e0;border-radius:12px;padding:1.5rem}.card-section{background:#f7fafc;border-radius:12px;padding:1.5rem;margin-bottom:1.5rem}label{font-size:.85rem;font-weight:500;color:#4a5568}input[type=text],input[type=number],select{padding:.6rem;border:1px solid #e2e8f0;border-radius:8px;font-size:1rem;background:#fff;width:100%}input:focus,select:focus{outline:none;border-color:#007acc;box-shadow:0 0 0 3px #007acc1a}.btn{padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;gap:.5rem}.btn-primary{background:#007acc;color:#fff}.btn-primary:hover:not(:disabled){background:#006bb3;transform:translateY(-1px);box-shadow:0 4px 12px #007acc4d}.btn:disabled{opacity:.6;cursor:not-allowed}.drop-zone{border:2px dashed #cbd5e0;border-radius:12px;padding:2rem;text-align:center;transition:all .3s ease;cursor:pointer;background:#f7fafc}.drop-zone:hover{border-color:#007acc;background:#f0f7ff}.drop-zone.has-file{border-style:solid;border-color:#48bb78;background:#f0fff4}.text-muted{color:#718096}.text-success{color:#48bb78}.text-error{color:#e53e3e}.text-center{text-align:center}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.error-message{background:#fed7d7;color:#c53030;padding:1rem;border-radius:8px;margin-bottom:1.5rem;text-align:center}.spinner{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:600px){.page-container{padding:1rem}h1{font-size:1.5rem}}