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10px;color:#1f2937}.homework-description,.submission-content{margin-bottom:25px;padding:20px;background:#f8fafc;border-radius:8px}.homework-description h4,.submission-content h4{margin:0 0 15px;color:#374151}.text-response{background:#fff;padding:15px;border-radius:6px;border:1px solid #e5e7eb}.file-download{display:inline-flex;align-items:center;gap:8px;padding:10px 15px;background:#2563eb;color:#fff;text-decoration:none;border-radius:6px;font-weight:500;transition:background-color .3s}.file-download:hover{background:#1d4ed8}.grading-form{margin-top:30px}.grade-selector{margin-bottom:25px}.grade-selector label{display:block;margin-bottom:10px;font-weight:600;color:#374151}.grade-buttons{display:flex;gap:10px}.grade-button{width:50px;height:50px;border:2px solid #d1d5db;background:#fff;border-radius:8px;font-size:18px;font-weight:600;cursor:pointer;transition:all .3s}.grade-button:hover{border-color:#2563eb;background:#f0f4ff}.grade-button.selected{border-color:#2563eb;background:#2563eb;color:#fff}.feedback-input{margin-bottom:25px}.feedback-input label{display:block;margin-bottom:10px;font-weight:600;color:#374151}.feedback-input textarea{width:100%;padding:12px;border:2px solid #d1d5db;border-radius:8px;font-size:14px;resize:vertical;transition:border-color .3s}.feedback-input textarea:focus{outline:none;border-color:#2563eb}.submit-grade-button{width:100%;padding:15px;background:#059669;color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:background-color .3s}.submit-grade-button:hover{background:#047857}.selection-prompt{text-align:center;padding:60px 20px;color:#6b7280;font-size:18px;background:#fff;border-radius:12px;border:2px dashed #d1d5db}.loading-container,.error-container{text-align:center;padding:100px 20px;font-size:18px}.error-container{color:#dc2626}@media(max-width:1024px){.homework-check-container{grid-template-columns:1fr;gap:20px}}