*{margin:0;padding:0;box-sizing:border-box}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;display:flex;align-items:center;justify-content:center;padding:20px}.container{max-width:800px;width:100%;background:#fff;border-radius:20px;padding:40px;box-shadow:0 20px 60px #0000004d}h1{color:#333;font-size:2.5rem;margin-bottom:10px;text-align:center}.subtitle{color:#666;text-align:center;margin-bottom:30px;font-size:1.1rem}.drop-zone{border:3px dashed #667eea;border-radius:15px;padding:60px 40px;text-align:center;cursor:pointer;transition:all .3s ease;background:#f8f9ff;margin-bottom:30px}.drop-zone:hover{border-color:#764ba2;background:#f0f2ff;transform:translateY(-2px)}.drop-zone.dragging{border-color:#764ba2;background:#e8ebff;transform:scale(1.02)}.drop-zone-content svg{color:#667eea;margin-bottom:20px}.drop-zone-content p{color:#666;font-size:1.1rem;margin-bottom:5px}.file-name{color:#667eea;font-weight:600;margin-top:10px}.autofill-section{margin-top:40px;padding-top:40px;border-top:2px solid #eee}.autofill-section h2{color:#333;margin-bottom:10px;font-size:1.8rem}.info{color:#666;margin-bottom:25px}.sheet-info{background:#f0f2ff;padding:12px 16px;border-radius:8px;margin-bottom:25px;color:#555;font-size:.9rem;border-left:4px solid #667eea}.sheet-info strong{color:#667eea}.info-box{background:linear-gradient(135deg,#f5f7ff,#e8ebff);padding:25px;border-radius:12px;margin-bottom:30px;border:2px solid #667eea}.info-box h3{color:#667eea;margin-bottom:20px;font-size:1.2rem}.field-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}.field-column p{color:#555;margin:8px 0;font-size:.95rem;padding-left:5px}.process-button{width:100%;padding:18px 32px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;font-size:1.2rem;font-weight:700;cursor:pointer;transition:all .3s ease;box-shadow:0 5px 20px #667eea66}.process-button:hover{transform:translateY(-3px);box-shadow:0 8px 25px #667eea99}.process-button:active{transform:translateY(0)}.process-button:disabled{opacity:.6;cursor:not-allowed;transform:none}@media(max-width:768px){.container{padding:30px 20px}h1{font-size:2rem}.form-grid{grid-template-columns:1fr}}