html, body
{
    height: 100%;
    font-family: 'Jost', sans-serif;
}

body{
    background-color: #3B5998;
}

.button{
    display: inline-block;
    background-color: #02A3C6;
    padding: 8px 8px;
    border-radius: 5px;
    color: #FFF;
    font-size: 1.2rem;
    text-decoration: none;
}

.button:hover{
    color: #FFF;
    text-decoration: none;
}

.sidebar_offnav{
    max-width: 340px;
    width: 0px;
    position: absolute;
    left: 0;
    top: 0;
    background-color: #FFF;
    height: 100%;
    min-height: 100vh;
    box-shadow: 6px 2px 6px rgba(0, 0, 0, 0.3);
    padding: 30px 0px;
    z-index: 9999;
    transition: all 1s;
}

.sidebar_offnav > *{
    display: none;
}

.sidebar_offnav.active{
    width: 100%;
    transition: all 1s;
}

.sidebar_offnav.active > *{
    display: block;
}

.sidebar_offnav ul{
    padding: 0;
    margin: 0;
    list-style-type: none;
    margin-top: 30px;
}

.sidebar_offnav ul li{
    padding: 0px 10px;
}

.sidebar_offnav ul li a{
    text-decoration: none;
    color: #3B5998;
    padding: 5px 2%;
    display: block;
}

.sidebar_offnav ul li a:hover{
    text-decoration: none;
    color: #3B5998;
    background: #ddd;
}

.sidebar_offnav .logo img{
    width: 100px;
}

/**************
* HEADER STYLE
**************/

header{
    background-color: transparent;
    margin-bottom: 20px;
    width: 100%;
}

header nav{
    margin-top: 30px;
}

.desktop_menu{
    list-style-type: none;
    padding: 0;
    margin: 0;
}

/* .logo{
    margin-left: 100px;
} */

.desktop_menu li a{
    color: white;
    text-decoration: none;
    font-size: 24px;
}

.mobile_menu_trigger{
    background-color: #FFF;
    border: 0;
    border-radius: 6px;
    padding: 0px 10px;
    font-size: 2rem;
    color: #3B5998;
    display: none;
    max-height: 50px;
}

/**************
* BANNER STYLE
**************/

.banner{
    background-image: url('../img/banner_home.png');
    background-size: cover;
    background-repeat: no-repeat;
    height: 100%;
    padding-bottom: 40px;
}

.title_banner{
    color: #FFF;
    font-weight: 500;
    font-size: 70px;
}

.title_banner span{
    color: #02A3C6;
    font-weight: 900;
}

.subtitle_banner{
    color: #FFF;
    font-weight: 500;
    font-size: 46px;
    display: flex;
    justify-content: end;
    margin-top: 20px;
}

.subtitle_banner span{
    width: 100%;
    max-width: 800px;
    display: block;
}

.name_banner{
    color: #f8f8f8;
    margin: 0;
    font-size: 46px;
    font-weight: 300;
}

.banner_text_wrapper{
    display: grid;
    place-items: end;
    text-align: end;
    height: 100%;
    width: 100%;
}

.button_access_class{
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 8px 16px;
    width: 331px;
    height: 74px;
    background: #02A3C6;
    border-radius: 10px;

    text-align: center;
    font-weight: 400;
    font-size: 40px;
    color: #FFFFFF;
    text-decoration: none;
    transition: all 0.3s;
}

.button_access_class:hover{
    color: #FFFFFF;
    text-decoration: none;
    filter: brightness(1.1);
}

.brightness_bg{
    background-image: url('../img/brightness_effect.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

/**************
* ABOUT STYLE
**************/

.about{
    background-image: url('../img/banner_home2.svg');
    text-align: center;

    padding-top: 40px;
}

.about_text{
    color: #000;
    font-weight: 300;
    font-size: 18px;
}

.title_about{
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 10px 12px;
    width: 426px;
    height: 70px;
    border-radius: 8px;

    font-size: 35px;
    background-color: #3B5998;
    font-weight: 500;
    text-align: center;
    color: #FFFFFF;
    margin: 0px auto 20px auto;
}

/**************
* FOOTER STYLE
**************/

footer{
    padding: 90px 0;
    text-align: center;
}

footer p{
    margin: 0;
    font-size: 24px;
    font-weight: 600;
    color: #FFF;
}

.social_wrapper{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.social_wrapper .social-item{
    font-size: 2rem;
    color: #02A3C6;
    background: #FFF;
    width: 50px;
    height: 50px;
    border-radius: 50%;

    display: grid;
    place-items: center;
    transition: all 0.3s;
}

.social_wrapper .social-item:hover{
    filter: brightness(1.3);
}

/***************
* REGISTER STYLE
***************/

body.register_page main{
    height: 100%;
    width: 100vw;
}

body.register_page .logo{
    text-align: center;
}

body.register_page .logo img{
    width: 80px;
    height: 80px;
}

body.register_page main .form-wrapper{
    width: 100%;
    height: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: #FFF;
}

body.register_page main .form-wrapper form{
    padding: 1rem;
    width: 100%;
    max-width: 500px;
}

body.register_page main .form-wrapper form label{
    color: #3B5998;
    font-weight: 400;
    font-size: 24px;
    margin: 0;
}

.form-check-label{
    font-size: 16px!important;
    color: #3B5998;
    font-weight: 400;
}

body.register_page main .form-wrapper form input{
    border: 1px solid #3B5998;
}

.forgot_password_form_text{
    color: #3B5998;
    font-weight: 500;
    font-size: 24px;
    line-height: 35px;
}

#register_phrase{
    background-image: url('../img/login_banner.png');
    background-position: center;
    display: grid;
    place-items: center;
    background-color: #3B5998;
}

#register_phrase h2{
    font-weight: 500;
    font-size: 42px;
    text-align: center;
    color: #FFFFFF;
    width: 100%;
    max-width: 500px;
}

.register_title{
    font-size: 36px;
    color: #3B5998;
    font-weight: 600;
    letter-spacing: 1.5px;
    margin-top: 20px;
}

.email_reminder_register{
    font-size: 16px;
    color: #3B5998;
    letter-spacing: 0.9px;
}

.button_submit{
    border: 0;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 8px 16px;
    width: 92px;
    height: 51px;
    background: #02A3C6;
    border-radius: 10px;

    font-weight: 400;
    font-size: 24px;
    transition: all 0.3s;
}

.button_submit:hover{
    filter: brightness(1.1);
}

.button_back{
    border: 0;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 8px 16px;
    width: 92px;
    height: 51px;
    color: #02A3C6;
    border: 1px solid #02A3C6;
    border-radius: 10px;

    font-weight: 400;
    font-size: 24px;
    text-decoration: none;
    transition: all 0.3s;
}

.button_back:hover{
    color: #02A3C6;
    text-decoration: none;
    filter: brightness(1.1);
}

.button_register{
    border: 0;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 8px 16px;
    width: 150px;
    height: 51px;
    color: #02A3C6;
    border: 1px solid #02A3C6;
    border-radius: 10px;

    font-weight: 400;
    font-size: 24px;
    text-decoration: none;
    transition: all 0.3s;
}
.button_register:hover{
    color: #02A3C6;
    text-decoration: none;
    filter: brightness(1.1);
}

.enter_administrator_text{
    font-weight: 400;
    font-size: 20px;
    color: #3B5998;
}

/****************
* ADD CLASS STYLE
****************/

body.add_class .page_wrapper{
    background-image: url('../img/banner_addClass.png');
    background-size: cover;
    height: 100%;
    min-height: 900px;
}

body.add_class header{
    padding-top: 20px;
}

body.add_class header nav ul li a{
    font-weight: 400;
    font-size: 24px;
}

.new_class_form_wrapper{
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
}

.new_class_form_wrapper form{
    padding: 1rem 2rem 2rem 2rem;
    background: #FFF;
    margin-top: 20px;
    border-radius: 12px;
}

.new_class_form_wrapper form h3{
    color: #3B5998;
    font-weight: 600;
    font-size: 24px;
    line-height: 35px;
}

.new_class_form_wrapper form input{
    border: 1px solid #3B5998;
    width: 100%;
    max-width: 400px;
}

.new_class_form_wrapper form label{
    color: #3B5998;
    font-weight: 400;
    font-size: 24px;
    line-height: 35px;
}

.title_add_class{
    color: #FFF;
    text-align: center;
    font-weight: 600;
    font-size: 36px;
}

/****************
* Class Summary Style
****************/

body.class_summary{
    background-color: #FFF!important;
}

body.class_summary .banner_summary_text_wrapper{
    margin-top: 70px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

body.class_summary section.banner_summary{
    background-image: url('../img/banner_summary.png');
    /* background-size: cover; */
    background-repeat: no-repeat;
    height: 650px;
}

body.class_summary.class{
    background:#3B5998!important;
}

body.class_summary.class section.banner_summary{
    background-image: url('../img/class_banner.png');
    background-position: center;
    background-size: cover;
}

body.class_summary .banner_summary_text_wrapper h3{
    text-align: center;
    width: 100%;
    max-width: 1200px;
    font-weight: 600;
    font-size: 35px;
    line-height: 51px;
    color: #FFFFFF;
    text-shadow: 0px 0px 5px rgba(255, 255, 255, 1), 
                     0px 0px 20px #3B5998,
                     0px 0px 30px #3B5998,
                     0px 0px 40px #3B5998,
                     0px 0px 55px #3B5998,
                     0px 0px 75px #3B5998;
}


body.class_summary .banner_summary_text_wrapper p{
    text-align: center;
    font-weight: 300;
    font-size: 35px;
    line-height: 51px;
    color: #FFFFFF;
}

.summary_wrapper{
    position: relative;
    top: -40px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    row-gap: 80px;
    column-gap: 20px;
}

.summary_wrapper .summary_item{
    background-image: url('../img/summary_item_img.png');
    background-size: cover;
    height: 283px;
    width: 30%;
    min-width: 340px;
    border-radius: 12px; 
}

.summary_wrapper .summary_item div{
    background: rgba(59, 89, 152, 0.65);
    display: grid;
    place-items: center;
    width: 100%;
    height: 100%;
    padding: 0.5rem;
    border-radius: 12px; 
}

.summary_wrapper .summary_item div h2{
    font-weight: 900;
    font-size: 55px;
    text-align: center;
    color: #FFFFFF;
}

/**********
* Class Player STYLE
**********/

.header_class_player{
    height: 80px;
    background-color: #4E4E4E;
    padding: 0 2%;
    box-shadow: 6px 2px 6px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 999;
}

.header_class_items{
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header_title{
    display: flex;
    align-items: center;
    height: 80px;
    padding-left: 280px;
}

.header_title h2{
    margin: 0;
    font-weight: 700;
    font-size: 22px;
    color: #FFFFFF;
}

.header_title i{
    font-size: 24px;
    color: #FFFFFF;
}

.button_previous_class{
    color: #FFFFFF;
    text-decoration: none;
    display: grid;
    place-items: center;
    min-width: 140px;
}

.button_previous_class h2{
    margin: 0;
    font-weight: 400;
    font-size: 22px;
}

.button_previous_class:hover{
    margin: 0;
}

.button_previous_class:hover{
    color: #FFFFFF;
    text-decoration: none;
}

.button_next_class{
    background: #02A3C6;
    border-radius: 8px;
    height: 51px;
    display: grid;
    place-items: center;
    padding: 0px 6px;
    text-decoration: none;
    min-width: 300px;
}

.button_next_class h2{
    font-weight: 400;
    font-size: 22px;
    color: #FFFFFF;
    margin: 0;
}

.header_player_buttons{
    display: flex;
    column-gap: 20px;
}

.footer_player_buttons{
    display: flex;
    column-gap: 20px;
}

.footer_class_player{
    height: 80px;
    background-color: #4E4E4E;
    padding: 0 2%;
    box-shadow: 6px 2px 6px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 999;
    display: none;
}

.footer_class_items{
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.player_class_wrapper{
    width: 100%;
    display: flex;
    height: 800px;
}

.player_class_wrapper .player{
    width: 100%;
    height: 100%;
    background-color: #3A3A3A;

    display: grid;
    place-items: center;
}

.player_text{
    display: flex;
    align-items: center;
    padding: 0 2%;
}

.player_text.player_text_mobile{
    display: none;
}

.player_text h2{
    font-weight: 500;
    font-size: 35px;
    color: #FFFFFF;
    margin: 0;
    text-align: center;
}

.player_text i{
    font-size: 35px;
    color: #02A3C6;
}

.all_class.active{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    transition: all 1s;
    max-width: none;
}

.all_class{
    width: 100%;
    max-width: 300px;
    background-color: #4E4E4E;
    overflow-y: scroll;
    overflow-x: hidden;
    box-shadow: 6px 2px 6px rgb(0 0 0 / 30%);
    transition: all 0.6s;
}

.all_class::-webkit-scrollbar {
    width: 12px;               /* width of the entire scrollbar */
  }
  
.all_class::-webkit-scrollbar-track {
    background: #D9D9D9;        /* color of the tracking area */
  }
  
.all_class::-webkit-scrollbar-thumb {
    background: #02A3C6;   /* color of the scroll thumb */
    border-radius: 20px;       /* roundness of the scroll thumb */
    border: 3px solid #D9D9D9;  /* creates padding around scroll thumb */
  }

.button_collapse_show_class{
    width: 100%;
    border: 0;
    height: 59px;
    background: #383838;
    box-shadow: 6px 2px 6px rgba(0, 0, 0, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;

    color: #B9B9B9;
    font-weight: 600;
    font-size: 16px;
}

.button_collapse_show_class:hover{
    filter: brightness(1.1);
}

.button_collapse_show_class.active{
    color: #FFF;
}

.collapsed_class_items{
    border-radius: 0;
    padding: 10px 10px 10px 16px;
    background: #4E4E4E;
    margin: 0;
}

.collapsed_class_items li{
    list-style-type: none;
}

.collapsed_class_items li a{
    font-size: 16px;
    line-height: 19px;
    text-decoration: none;
    display: block;
    padding: 6px 0;
    color: #B9B9B9;
}

.collapsed_class_items li a.active{
    color: #FFFFFF;
}

.collapsed_class_items li a:hover{
    color: #FFFFFF;
    text-decoration: none;
}

.class_description{
    background: #3B5998;
}

.description_class_text{
    padding: 90px 0;
}

.description_class_text h2{
    font-weight: 600;
    font-size: 24px;
    line-height: 35px;
    color: #FFFFFF;
    text-align: center;
    margin-bottom: 60px;
}

.description_class_text p{
    font-weight: 500;
    font-size: 16px;
    line-height: 19px;
    color: #FFFFFF;
}

.description_class_text a{
    font-weight: 500;
    font-size: 16px;
    line-height: 19px;
    color: #FFFFFF;
    word-break: break-all;
}

.sidebar_class{
    display: none;
    border: 0;
    background: transparent;
    color: #FFF;
    font-size: 1.6rem;
}

.sidebar_class{
    display: none;
    border: 0;
    background: #4E4E4E;
    color: #FFF;
    font-size: 1.6rem;
    border-radius: 6px;
    padding: 5px 10px;
}

.sidebar_class:hover{
    filter: brightness(1.1);
}

/****************
* MEDIA QUERIES
****************/

@media screen and (min-width:1800px) {
    body.class_summary section.banner_summary{
        background-size: cover;
    }
}

@media screen and (max-width:1200px) {
    .header_player_buttons{
        display: none;
    }

    .header_title{
        padding-left: 0px;
        width: 100%;
        display: flex;
        justify-content: center;
    }

    .header_class_items{
        justify-content: space-between;
    }

    .footer_class_player{
        display: block;
    }
}

@media screen and (max-width:991px) {
    #register_phrase{
        display: none;
    }
}

@media screen and (max-width:768px) {
    .banner_text_wrapper{
        display: grid;
        place-items: center;
        text-align: center;
        height: 100%;
        width: 100%;
    }
    .subtitle_banner span{
        width: 100%; 
        max-width: none;
    }

    .desktop_menu{
        display: none!important;
    }

    .mobile_menu_trigger{
        display: block!important;
    }
    
    body.class_summary section.banner{
        height: 100vh;
    }

    .all_class{
        width: 0px;
    }

    .sidebar_class{
        display: block;
    }

    .player_class_wrapper{
        position: relative;
        height: 500px;
    }

    .player_text{
        display: none;
    }

    .player_text.player_text_mobile{
        display: block!important;
    }

    body.add_class header{
        padding-top: 0px;
    }
}

@media screen and (max-width:576px) {
    .title_banner{
        font-size: 43px;
    }
    .subtitle_banner{
        font-size: 30px;
    }

    .name_banner{
        font-size: 30px;
    }

    .button_access_class{
        width: 320px;
        font-size: 30px;
    }

    .logo img{
        width: 80px;
    }

    .banner_text_wrapper{
        margin-top: 60px;
    }

    .social_wrapper .social-item{
        font-size: 1.5rem;
    }
    body.class_summary .banner_summary_text_wrapper h3{
        font-size: 30px;
    }

    .footer_class_items{
        flex-direction: column-reverse;
        justify-content: center;
        gap: 10px;
    }

    .footer_class_player{
        height: 120px;
    }

    .player_class_wrapper{
        height: 400px;
    }
}

@media screen and (max-width:470px) {
    .title_about{
        width: 100%;
        font-size: 25px;
    }

    body.register_page main .form-wrapper form{
        padding: 0.2rem;
    }

    .enter_administrator_text{
        font-size: 16px;
    }

    body.class_summary .banner_summary_text_wrapper h3{
        font-size: 1.6rem;
    }

    body.class_summary .banner_summary_text_wrapper p{
        text-shadow: 2px 2px 3px #3b5998;
    }

    .player_class_wrapper{
        height: 320px;
    }

    .button_access_class{
        width: 290px;
    }

    .summary_wrapper .summary_item{
        min-width: 300px;
    }

    .summary_wrapper .summary_item div h2{
        font-size: 40px;
    }

    .summary_wrapper{
        top: 40px;
    }

    section.banner{
        height: 650px;
    }

    .new_class_form_wrapper form{
        padding: 1rem;
    }

    footer p{
        font-size:22px;
    }

    body.class_summary .banner_summary_text_wrapper{
        margin-top: 30px;
    }
}