.container{max-width:900px;margin:50px auto;padding:30px;font-family:Segoe UI,sans-serif;background-color:#ffffff;box-shadow:0 4px 12px rgba(0,0,0,.05);border-radius:12px}.title{font-size:32px;margin-bottom:10px;color:#222}.subtitle,.title{text-align:center}.subtitle{font-size:16px;margin-bottom:30px;color:#555}code{background:#f1f1f1;padding:2px 4px;border-radius:4px;font-size:90%}.upload-section{margin-bottom:25px;display:flex;flex-direction:column;gap:8px}.upload-label{font-weight:600}.helper-text{font-size:13px;color:#888}.error-message{background:#ffe0e0;color:#b20000}.error-message,.success-message{padding:10px;border-radius:4px;margin-bottom:20px;font-weight:500}.success-message{background:#e0ffe0;color:#147814}.table-wrapper{overflow-x:auto}.csv-table{width:100%;border-collapse:collapse;margin-bottom:20px;font-size:14px;background-color:white}.csv-table th{background-color:#f3f3f3;padding:10px;border:1px solid #ccc;font-weight:600;text-align:left}.csv-table td{padding:8px;border:1px solid #ccc;background-color:#fafafa}.edit-input{width:100%;border:none;background:transparent;font-size:14px;padding:4px}.edit-input:focus{outline:1px solid #007bff;background:#fff}.sync-button{background-color:#007bff;color:#fff;padding:12px 25px;border:none;border-radius:5px;cursor:pointer;font-size:16px;display:block;margin:0 auto;transition:background-color .2s ease-in-out}.sync-button:hover{background-color:#005fcc}.download-button{background-color:#28a745;color:#fff;padding:12px 25px;border:none;border-radius:5px;cursor:pointer;font-size:16px;display:block;margin:20px auto 0;transition:background-color .2s ease-in-out}.download-button:hover{background-color:#218838}.download-reminder{text-align:center;color:#444;font-size:15px;margin-top:25px;margin-bottom:10px}