*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #4f46e5;--primary-hover: #4338ca;--secondary-color: #6366f1;--success-color: #10b981;--text-primary: #1f2937;--text-secondary: #6b7280;--bg-primary: #ffffff;--bg-secondary: #f9fafb;--border-color: #e5e7eb;--shadow: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px 0 rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--radius: 8px;--radius-lg: 12px}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:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:var(--text-primary)}.app{max-width:1200px;margin:0 auto;padding:2rem 1rem;min-height:100vh}.app-header{text-align:center;margin-bottom:3rem;color:#fff}.app-header h1{font-size:2.5rem;font-weight:700;margin-bottom:1rem;text-shadow:0 2px 4px rgba(0,0,0,.1)}.app-subtitle{font-size:1.1rem;opacity:.95;max-width:600px;margin:0 auto;line-height:1.6}.app-main{background:var(--bg-primary);border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow-lg)}.upload-zone{border:3px dashed var(--border-color);border-radius:var(--radius);padding:3rem 2rem;text-align:center;cursor:pointer;transition:all .3s ease;background:var(--bg-secondary)}.upload-zone:hover:not(.disabled){border-color:var(--primary-color);background:#f3f4f6;transform:translateY(-2px);box-shadow:var(--shadow-md)}.upload-zone.active{border-color:var(--primary-color);background:#eef2ff;transform:scale(1.02)}.upload-zone.disabled{opacity:.6;cursor:not-allowed}.upload-content{display:flex;flex-direction:column;align-items:center;gap:1rem}.upload-icon{color:var(--primary-color);margin-bottom:.5rem}.upload-text{font-size:1.1rem;font-weight:500;color:var(--text-primary);margin:0}.upload-hint{font-size:.9rem;color:var(--text-secondary);margin:0}.upload-progress{background:var(--bg-secondary);border-radius:var(--radius);padding:1.5rem;margin-bottom:2rem}.progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.progress-header h3{font-size:1.1rem;font-weight:600;color:var(--text-primary)}.progress-percentage{font-size:1.1rem;font-weight:700;color:var(--primary-color)}.progress-bar-container{width:100%;height:8px;background:var(--border-color);border-radius:4px;overflow:hidden;margin-bottom:1rem}.progress-bar{height:100%;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));border-radius:4px;transition:width .3s ease;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.8}}.progress-spinner{display:flex;justify-content:center;margin-top:1rem}.spinner{width:32px;height:32px;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.results-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:2px solid var(--border-color)}.results-info{color:var(--text-primary)}.results-info p{font-size:1rem;margin:0}.reset-button{background:var(--text-secondary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:var(--radius);font-size:.95rem;font-weight:500;cursor:pointer;transition:all .2s ease}.reset-button:hover{background:#4b5563;transform:translateY(-1px);box-shadow:var(--shadow-md)}.batch-list{margin-top:2rem}.batch-list-title{font-size:1.5rem;font-weight:600;margin-bottom:1.5rem;color:var(--text-primary)}.batches-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.batch-item{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius);padding:1.5rem;display:flex;flex-direction:column;gap:1rem;transition:all .2s ease}.batch-item:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--primary-color)}.batch-info{flex:1}.batch-title{font-size:1.2rem;font-weight:600;color:var(--text-primary);margin-bottom:.75rem}.batch-details{display:flex;flex-direction:column;gap:.5rem}.batch-detail{font-size:.9rem;color:var(--text-secondary)}.batch-detail strong{color:var(--text-primary);font-weight:600}.download-button{background:var(--primary-color);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:var(--radius);font-size:.95rem;font-weight:500;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:all .2s ease;width:100%}.download-button:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.download-button:active{transform:translateY(0)}.download-button svg{width:20px;height:20px}@media (max-width: 768px){.app{padding:1rem .5rem}.app-header h1{font-size:2rem}.app-subtitle{font-size:1rem}.app-main{padding:1.5rem}.upload-zone{padding:2rem 1rem}.results-header{flex-direction:column;align-items:flex-start;gap:1rem}.batches-grid{grid-template-columns:1fr}}@media (max-width: 480px){.app-header h1{font-size:1.75rem}.upload-text{font-size:1rem}.batch-item{padding:1rem}}.app-footer{text-align:center;margin-top:3rem;padding:1.5rem 0;color:#fff;opacity:.9}.app-footer p{font-size:.95rem;margin:0}.footer-link{color:#fff;text-decoration:none;font-weight:600;transition:all .2s ease;border-bottom:1px solid transparent}.footer-link:hover{opacity:.8;border-bottom-color:#fff}@media (max-width: 768px){.app-footer{margin-top:2rem;padding:1rem 0}.app-footer p{font-size:.85rem}}