body{
    color: #082b48;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    line-height: 1.5;
}

img{
    width: 100%;
    height: auto;
}

a{
    text-decoration: none;
    color: #082b48;
}

a:hover{
    opacity: 0.7;
}

.container{
    width: 90%;
    max-width: 980px;
    margin: auto;
}

.clear::after{
    content:"";
    clear: both;
    display:block ;
}
/*============
header
I==========*/

header{
    padding: 20px 0;
}
.header-title{
    font-weight:  bold;
    font-size: 24px;
}

.header-left{
    float: left;

}
.header-right{
    float: right;
}
.header-nav{

}
.header-nav-item{
    float: left;
    margin-left: 50px ;

}
.header-nav-item a{
    font-size: 15px;
    font-weight: 600;
    line-height: 36px;

}
.top{
    background-image: url(../img/main-vsual-nontitle.png);
    background-size: cover;
    padding: 80px 0;
}
/* 
top
 */

 .top-title{
    font-size: 48px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
 }

 .top-subtitle{
    font-size: 18px;
    text-align: center;
 }
/* 
section共通クラス
 */
 .section{
    padding: 60px 0;
 }
 .section-title{
    font-size: 32px;
    font-family:bold;
    text-align: center;
    margin-bottom: 40px;
 }

 /* about */
 .about-left{
    float: left;
    width: 48%;
 }
 .about-right{
    float: right;
    width: 48%;
 }

 /* course */

 .course{
    background-color:  #e3fcf4;
 }
 .course-wrapper{
    display: flex;
    
    justify-content: space-between;
 }

 .course-item{
    width: 30%;
 }
 /* 
 contact */
 .contact-message{
    text-align: center;
    margin-bottom: 20px;
 }

 input[type="email"]{
    width: 600px;
    font-size: 18px;
    display: block;
    margin: auto;
    padding: 15px;
    border-radius: 999px;
    margin-bottom: 20px;
 }

 .btn{
    padding: 20px 60px;
    display: inline-block;
    background-color: #082b48;
    color: #fff;
    font-size: 24px;
    font-weight: bold;
    border-radius: 4px;
    border: none;
 }
.btn:hover{
    opacity: 0.7;
    cursor: pointer;
}

 .btn-register{
    background-color: #ec6d64;
    display: block;
    margin: auto;

 }
 /* fotter */

 footer{
    background-color: #082b48;
    color: #fff;
    padding: 20px 0;


 }

 .copyright{
    font-size: 12px;
    float: right;

 }

 /* スマホ用の表示
  */

  @media only screen and (max-width:767px) {
    /* header */

    .clear::after{
        content: none;
    }

    .header-left{
        float: none;
    }
    .header-title{
        text-align: center;
    }
    .header-right{
        float: none;
        
    }
    .header-nav{
        display: flex;
        justify-content: space-between;
    }
    .header-nav-item{
        float: none;
        margin: 0;
    }
    /* top */

    .top{
        padding: 120px 0;
    }

    .top-title{
        font-size: 32px;
    }
    .top-subtitle{
        font-style: 14px;

    }
    /* section */
    .section{
        padding: 80px 0;
     }
     .section-title{
        font-size: 24px;
        font-family:bold;
        
     }
     .section p {
        font-size: 14px;
     }
     /* about */
     .about-left{
        float: none;
        width: 100%;
        margin-bottom: 20px;
     }
     .about-right{
        float: none;
        width: 100%;
     }
      /* course */
        .course-wrapper{
            flex-wrap: wrap;
        }

      .course-item{
        width: 100%;
        margin-bottom:  20px;
      }
     /* contact*/
     input[type="email"]{
        width: 100%;

     }
     /* footer */
     .copyright{
        font-style: 10px;
        float: none;
        text-align: center;
     }
  }