html{
    background: linear-gradient(rgb(255, 219, 225),rgb(209, 243, 255));
}
html, body {
    height: fit-content;
    margin: 0;
    min-height: 100vh;
}
#logo{
    height: 70px;
}
.main_title,#title_logo{
    display: block;
    height: 1.5em;
    max-width: 70%;
    margin: auto;
    
}
.main_title{
    height: fit-content;
    border-bottom: 2px gray solid;
}
.sub_title{
    display: block;
    margin: auto;
    text-align: center;
}
#othello_board{
    position: relative;
    background-color: rgb(36, 164, 26);
    width: 740px;
    height: 740px;
    border-radius: 10px;
    margin: auto;
    transform-origin: top left;
}
.box{
    position: absolute;
    width: 80px;
    height: 80px;
    border: 2px solid black;
    /* cursor: pointer; */
}
.stone{
    position: absolute;
    width: 75%;
    height: 75%;
    border-radius: 100%;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    pointer-events: none;
}
.legal{
    position: absolute;
    width: 30%;
    height: 30%;
    border-radius: 100%;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    pointer-events: none;
}
.black{
    background-color: black;
}
.white{
    background-color: white;
}
.empty,.not_legal{
    background-color: none;
}
.legal_black{
    background-color: rgb(122, 122, 122);
}
.legal_white{
    background:radial-gradient(rgba(0,0,0,0) 30%,rgb(167, 167, 167) 30%,rgb(167, 167, 167) 100%);
}

#over_wrap{
    position: absolute;
    display: none;
    width: 100%;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: 5;
    background-color: rgba(0, 0, 0, 0.432);
}

#mode_button_parent{
    display: none;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    z-index: 10;
    -webkit-text-stroke-width: 0.3px;
    -webkit-text-stroke-color: white;
    width: 50%;
    color: rgb(0, 0, 0);
    & .mode_button{
        margin:auto;
        background-color: rgba(182, 255, 255, 0.518);
        backdrop-filter: blur(10px);
        padding: 20px;
        margin-top: 10px;
        cursor:pointer;
        width: 40%;
        & h2{
            pointer-events: none;
            color: rgb(255, 200, 242);
            margin: 0;
        }
    }
    & h3{
        font-size: 17pt;
    }
}
#color_button_parent{
    display: none;
    text-align: center;
    position: absolute;
    top: 45%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    z-index: 10;
    -webkit-text-stroke-width: 0.3px;
    width: 80%;
    color: rgb(0, 0, 0);
    & .color_button{
        margin:auto;
        background-color: rgba(182, 255, 255, 0.518);
        backdrop-filter: blur(10px);
        padding: 20px;
        margin-top: 10px;
        cursor:pointer;
        width: 30%;
        font-size: 20pt;
        & h3{
            color: gray;
            pointer-events: none;
        }
        & h2{
            pointer-events: none;
        }
    }
    & h1{
        font-size: 30pt;
        -webkit-text-stroke-width: 0.3px;
        -webkit-text-stroke-color: white;
        pointer-events: none;
    }
}

#white{
    color: white;
}
#black{
    color: black;
}
.flex{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;

}

#level{
    text-align: center;
    font-size: 18pt;
    margin: 0;
}

#col_guide_parent{
    margin: 0 auto;
    display: flex;
    justify-content: center;
    height: 50px;
    & div{
        text-align: center;
        width: 80px;
        font-size: 23pt;
    }
}
#row_guide_parent{
    width: 50px;
    margin-top: 20px;
    & div{
        vertical-align: middle;
        text-align: center;
        height: 80px;
        font-size: 23pt;
    }
}
#result_parent{
    display: none;
    padding: 0 20px;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    position: absolute;
    width: 40%;
    height: fit-content;
    background-color: rgba(0, 255, 187, 0.869);
    backdrop-filter: saturate(300%);
    box-shadow: 2px 2px 20px rgb(0, 0, 0);
    z-index: 10;
    text-align: center;
    & p{
        vertical-align: middle;
        font-size: 23pt;
    }
    & h1{
        font-size: 26pt;
    }
    & p#record{
        font-size: 10pt;
        white-space: normal;
        overflow-wrap: break-word;
        word-wrap: break-word;
        border: gray 2px solid;
        padding: 5px;
        margin: 0;
        margin-bottom: 10px;
    }
}
#black_stone,#white_stone{
    content: "";
    vertical-align: middle;
    margin-right: 10px;
    display: inline-block;
    width: 1.3em;
    height: 1.3em;
    background-color: black;
    border-radius: 50%;
    border: gray 2px solid;
}
#white_stone{
    background-color: white;
}
#copy,#re_copy_record,#reset{
    display: block;
    width: fit-content;
    background-color: rgba(255, 221, 226, 0.869);
    cursor: pointer;
    margin: 0 auto;
    margin-bottom: 5px;
    padding: 5px;
}
#close_parent{
    position: absolute;
    top: 30px;
    right: 30px;
    background-color: black;
    cursor: pointer;
}
#close1,#close2{
    position: absolute;
    top: 50%;
    left: 50%;
    
    width: 50px;
    height: 10px;
    background-color: red;
}
#close1{
    transform: translateX(-50%) translateY(-50%) rotate(45deg);
}
#close2{
    transform: translateX(-50%) translateY(-50%) rotate(-45deg);
}

#re_copy_record,#reset{
    display: none;
    margin: 0;
}
#reset{
    background-color: rgba(173, 216, 230, 0.728);
}
#calculating,#whitch_color{
    display: none;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}
#under1{
    display: flex;justify-content: center;gap: 20px;margin-top: 10px;
}
#overview{
    text-align: center;
}
.black_turn{
    color: gray;
    -webkit-text-stroke-width: 0.5px;
    -webkit-text-stroke-color: black;
}
.white_turn{
    color: gray;
    -webkit-text-stroke-width: 0.5px;
    -webkit-text-stroke-color: white;
}
#ad_space1_parent,#ad_space2_parent,#upper_space{
    display: flex;
    gap: 10px;
    flex-wrap: wrap-reverse;
    
}
#ad_space3_parent,#ad_space4_parent{
    margin: 10px;
}
.ad_space1,.ad_space2{
    width: 400px;
    height: 250px;
    background-color: white;
    margin: 10px auto;
}
.ad_space3,.ad_space4{
    height: 80%;
    width: 300px;
    background-color: white;
}
#fotter{
    height: fit-content;
    margin-top: 100px;
    text-align: center;
    & p{
        display: block;
        margin: 25px;
    }
}
@media screen and (max-width: 500px) {
    #logo{
        height: 50px;
    }
    .ad_space1,.ad_space2{
        width: 80%;
    }
    .main_title{
        max-width: 90%;
    }
}
@media screen and (max-width: 920px) {
	
    h1{
        font-size: 12pt;
    }
    h2{
        font-size: 9pt;
    }
    h3 {
        font-size: 15pt;
    }
    #mode_button_parent{
        width: 100%;
        & h3{
            font-size: 8pt;
        }
    }
    #result_parent{
        width: 80%;
    }
    #under1{
        display: block;
        margin-bottom: 30px;
    }
    #level{
        display: block;
        
    }
    #reset,#re_copy_record{
        margin: 15px auto;
    }
    .flex{
        gap: 0;
    }
}
@media screen and (max-width: 1415px) {
    #ad_space3_parent,#ad_space4_parent{
        display: none;
    }
    #upper_space{
        display: block;
    }
}

#ad_space1_parent,#ad_space2_parent,#ad_space3_parent,#ad_space4_parent{
    display: none;
}