/* variable 不支援 IE*/
:root {
    --box-shadow: 0 2px 1px -1px rgba(0,0,0,.2), 0 1px 1px 0 rgba(0,0,0,.14), 0 1px 3px 0 rgba(0,0,0,.12);
    --padding-space: 15px;
    --padding-basic: 3em 1.6em;
    --primary: #53B332;
    --primary-light: #CEEEC3;
    --primary-dark: #4A9F2C;
    --white: white;
    --black: #33333b;
    --border-color: rgba(102, 119, 136, 0.2);
    --gray-50: #f5f5f5;
    --gray-100: #f1f3f5;
    --gray-200: #eee;
    --gray-300: #dcdee2;
    --maring-space: 2em;
    --domHeader-height: 56px;
}
.bg-white {
    background-color: white!important;
}
.bg-gray-50 {
    background-color: var(--gray-50)!important;
}
.bg-gray-100 {
    background-color: var(--gray-100)!important;
}
/* Text Center */
.text-center {text-align: center!important;}
/* Flex */
.d-flex {
    display: flex!important;
}
.d-flex.center {
    justify-content: center!important;
}
.mx-auto {
    margin-left: auto!important;
    margin-right: auto!important;
}
.text-primary { color: var(--primary)!important;}

.ml-auto {margin-left: auto!important;}
.mb-5 {margin-bottom: 5em!important;}
.mr-1 {margin-right: calc(var(--maring-space) / 5)!important;}
.mr-2 {margin-right: calc(var(--maring-space) / 4)!important;}
.mr-3 {margin-right: calc(var(--maring-space) / 3)!important;}
.mr-4 {margin-right: calc(var(--maring-space) / 2)!important;}
.mr-5 {margin-right: calc(var(--maring-space) / 1)!important;}
html {overflow: hidden;}
html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
}
body {
    background-color: var( --gray-100);
    font-family: -apple-system, BlinkMacSystemFont, Helvetica, "微軟正黑體", "Microsoft JhengHei", "Heiti TC", "黑體", Arial, sans-serif, serif;
    font-size: 1rem;
    color: #565C5A;
    line-height: 1.5;
    overflow: auto;
}
a {
    text-decoration: none;
    color: inherit;
    margin: 0;
    padding: 0;
}


pre {margin: 0;}
.btn {
    box-sizing: border-box;
    background-color: white;
    border: none;
    padding: 1em .8em;
    border: solid 1px rgba(0, 0, 0, .08); 
    margin: 0;
    color: #53B332;
    line-height: 100%;
    font-size: 1rem;
    box-sizing: border-box;

}
    .btn:hover {
        background-color: var(--primary-light);
    }
    .btn:active {
        background-color: #CEF0C2;
    }
    .btn:focus {
        outline: none;
    }



/* Layout */
.container {
    width: 984px;
    min-height: 100%;
    margin-left: auto;
    margin-right: auto;
}

.header {
    background-color: var(--white);
    padding: var(--padding-basic);
    text-align: center;
}
    .header > h1 {
        margin: 0;
    }

nav.fixedTop {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10;
    margin: 0;
    background-color: white;
    box-shadow: 0 12px 24px rgba(0, 0, 0, .08);
    text-align: center;
    transition: .4s cubic-bezier(0.215, 0.61, 0.355, 1);
    opacity: 0;
    transform: translateY(-100%);
}
nav.fixedTop.show {
    opacity: 1;
    transform: translateY(0);
}

    nav.fixedTop > .menu {
        margin: 0;
    }
.menu {
    font-size: 1.2rem;
    height: var(--domHeader-height);
    margin-inline-start: 0;
    margin-inline-end: 0;
    padding-inline-start: 0;
    padding-inline-start: 0;
    padding-right: 15px;
    padding-left: 15px; 
}
    .menu > li {
        display: inline-block;
        height: 100%;
    }

        .menu > li > a {
            color: var(--black);
            display: block;
            padding: 0 .6em 0 .6em;
            height: 100%;
            line-height: var(--domHeader-height);
        }
        .menu > li > a:hover,
        .menu > li > a.active {
           color: var(--primary);
        }


/* section */
.section {
    padding: var(--padding-basic);
    background-color: var(--white);
}

.section h2 {
    text-align: left;
    font-size: 1.8rem;
    font-weight: 400;
}

.features {
    column-count: 3;
    column-gap: 10%;
}
    .features__list {
        width: 100%;
        display: inline-block;
    }
    .features__list > ul {
        padding-inline-start: 20px;
    }
    .features__list > ul > li {
        padding: .2em 0;
        list-style-type: disc;
    }



/* table */
.table {
    width: 100%;
    margin-bottom: 1rem;
    border-collapse: collapse;
}
    .table th,
    .table td {
        padding: .8em .4em;
        border-bottom: solid 1px var(--gray-50);
    }
    .table th {
        text-align: left;
    }
    .table a {
        display: block;
        color: var(--primary);
        padding: .3em .6em;
        text-align: center;
        border-radius: 3px; 
        transition: background-color .2s ease-in;
    }
    .table a:hover {
        background-color: var(--primary-light);
    }

/* history */
.history {
    margin-block-start: 0;
    margin-block-end: 0;
    padding-inline-start: 0;
    padding-inline-end: 0; 
}
    .history > li {
        list-style-type: none;
        padding: .6em 1.2em;
        border-radius: 1.2em;
        margin-bottom: 1em;
        background-color: var(--gray-50);
    }
/* footer */
.footer {
    background-color: var(--gray-300);
    padding: var(--padding-basic);
    margin-bottom: 0;
    border-top: solid 1px rgba(0,0,0,.04);
}
    .footer a {
        display: inline-block;
        margin-right: 2em;
    }

/* demoHeader */
.demoHeader {
    overflow: hidden;
    position: fixed;
    width: 100%;
    z-index: 10;
    background-color: white;
    color: #53B332;
    border-bottom: solid 1px rgba(102, 119, 136, 0.2);;
    display: flex;
    align-items: center;
    height: var(--domHeader-height);
    padding: 0 var(--padding-space) 0 var(--padding-space);
}
    .demoHeader__title > img {  vertical-align: middle; }

        .demoHeader__title > h1 {font-size: 1.25rem; margin: 0 0 .3em 0;}
        .demoHeader__title > p {font-size: 0.85rem; margin: 0;}   
    .demoHeader > .menu { margin: 0 var(--padding-space) 0 auto; font-size: 1rem;}
.demoCode { 
    width: 100%;
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    padding: 0;
}
        
    .demoCode > .demoCode__card,
    .demoCode > .demoCode__side {
        box-sizing: content-box;
    }

    .demoCode > .demoCode__card,
    .demoCode > .demoCode__side { 
        margin-top: 1em; 
    }
    
    .demoCode > .demoCode__card {
        margin-left: 2em;
        box-sizing: border-box;
        min-width: 70%;
        width: 70%;
        border-radius: 2px;
        background: white;
        box-shadow: var(--box-shadow);    
    }   

        .demoCode__card > h2 { 
            margin: 0;           
            color: var(--primary); 
        }
        .demoCode__card > h2,
        .demoCode__body__title > h3 {
            border-radius: 1px; 
            font-size: 1rem;
            display: block;
            padding: 1em .8em;
        }

        .demoCode__body__title {
            display: flex;
            justify-content: space-between;
            border-bottom: solid 1px rgba(0, 0, 0, .08);
        }
        .demoCode__body__title > .funTitle,
        .demoCode__body__title .btnGroup {
            display: inline-block;
            margin: 0;
        }

        .demoCode__body__title > .btnGroup {
            display: flex;
        }
        .demoCode__body__title > .btnGroup > .btn {
            border: none;
        }

        .demoCode__body__title > .funTitle {
            background-color: white;                              
            margin-bottom: 0;
            font-weight: 400;
        }

        .demoCode__card .javascript {padding: 0 1em;}


    .demoCode > .demoCode__side {
        width: 30%;
    }   
        .demoCode__side__nav a {
            display: block;
            padding: .8em 1.2em;
            transition: background-color .2s ease-in;
        }
        .demoCode__side__nav a {color: var(--black);}
        .demoCode__side__nav a:hover {
            transition-delay: background-color .4s ease-out;
            background-color: var(--gray-300);
        }
        .demoCode__side__nav a.active {
            background-color: var(--primary);
            color: white;
        }

        .demoCode__side__nav__part > ul {
            margin-inline-start: 0;
            padding-inline-start: 0;
            margin: 0;
            padding: 0;
            font-size: .85rem;
            margin-inline-start: 1.6em;
            overflow: hidden;
            /* transiton 寫在 js */
            margin-inline-start: 0;

        }

            .demoCode__side__nav__part {
                background-color: white;
                border-radius: 2px;
                box-shadow: var(--box-shadow);     
                font-weight: bold;
                cursor: pointer;
                margin-bottom: 1em;                
            }



                .demoCode__side__nav__part > span {display: block;padding: .4em .8em;}
                .demoCode__side__nav__part > span:hover,
                .demoCode__side__nav__part > span:hover::before {
                    color: var(--primary);
                }
                .demoCode__side__nav__part > span::before {    
                    content: '▸';
                    display: inline-block;
                    padding: 8px;
                    color: var(--gray-300);
                }

                .demoCode__side__nav__part > span.expand::before {content: '▾';}   



                    .demoCode__side__nav__part > ul > li {
                        background-color: var(--gray-50);
                        font-weight: 500;
                        box-sizing: border-box;
                    }
                    .demoCode__side__nav__part
                    > ul
                    > li:nth-child(odd) {
                        background-color: var(--gray-200);
                    }

                    
/* download */
.download { padding: 2em 0;}

    .download__link {
        width: 144px;
        padding: .6em 1.2em;
        display: block;
        text-align: center;
        color: var(--primary);
        border: solid 1px var(--primary);
        border-radius: 44px;
        margin: 0 .6em;
    }
        .download__link.fill {background-color: var(--primary); color: white;}
        .download__link:hover {background-color: var(--primary); color: white; }
        .download__link.fill:hover {background-color: var(--primary-dark); }

    .download > img {width: 144px; height: 144px; display: block; padding: 1em;} 

    
    .download > img {
        margin: 0 auto;
    }  


.copyright {
    font-size: 0.85rem;
}
/* Form component */
.form-search {
    margin-left: auto;
}
.form-search > [type=text] {
    padding: .3em;
    border: solid 1px var(--border-color);
    border-radius: 20px;
    transition: all .3s;
    /* background-size: 16px; */
    background-image: url(../imgs/icon_search.svg);
    background-repeat: no-repeat;
    background-size: 21px;
    background-position: 6px;
    padding-left: 2.6em;
}
    .form-search  > [type=text]:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 12px  rgba(0, 212, 191, .25);
    }
    .form-search:before {
        content: "";
        display: block;
    }