.coa-container{max-width:800px;margin:0 auto;padding:40px 20px}.coa-content{background:#fff;padding:30px;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.1)}.coa-header{margin-bottom:30px;padding-bottom:20px;border-bottom:2px solid #eee}.coa-title{margin:0;font-size:28px;color:#333}.coa-details{margin-bottom:30px}.coa-field{padding:12px 0;border-bottom:1px solid #f0f0f0}.coa-label{font-weight:600;color:#666;display:inline-block;min-width:150px}.coa-value{color:#333}.coa-expired-warning{background:#fff3cd;padding:12px;border-radius:4px;border:1px solid #ffc107}.coa-expired-warning .coa-value{color:#856404;font-weight:600}.coa-actions{text-align:center;margin-top:30px}.coa-download-btn{display:inline-block;padding:15px 30px;background:#0073aa;color:#fff;text-decoration:none;border-radius:4px;font-weight:600;transition:background 0.3s}.coa-download-btn:hover{background:#005177}.coa-error{text-align:center;padding:60px 20px}