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12px;color:#333;font-size:24px;font-weight:600}.placeholder-content p{margin:0 0 8px;color:#666;font-size:16px;line-height:1.5}@media (max-width: 768px){.btn{padding:10px 20px;font-size:14px}.form-input{padding:10px 14px;font-size:16px}.card-header,.card-body,.card-footer{padding:16px 20px}.page-header h1{font-size:24px}.page-header p{font-size:14px}.placeholder-content{padding:40px 20px}.placeholder-content h3{font-size:20px}.placeholder-content p{font-size:14px}}