body{margin:0;background:#f7f7f7;font-family:Arial;color:#222}.box{max-width:1050px;margin:30px auto;padding:0 15px}header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #ddd;padding-bottom:12px;margin-bottom:18px}header h1{font-size:20px;margin:0}a{color:#444}.card{background:#fff;border:1px solid #ddd;padding:18px;margin-bottom:15px}input,select{padding:9px;border:1px solid #bbb;width:100%;box-sizing:border-box;margin:5px 0 12px}button,.btn{background:#333;color:#fff;border:0;padding:9px 13px;text-decoration:none;display:inline-block;cursor:pointer}.gray{background:#777}.red{background:#933}.login{max-width:360px;margin:100px auto;background:#fff;border:1px solid #ddd;padding:25px}table{width:100%;border-collapse:collapse}th,td{padding:9px;border-bottom:1px solid #ddd;text-align:left}