$theme-color-blue: #3EA3D8;
$theme-color-red: #FF9393;

$theme-color-light-layout: #F8F8F8;
$theme-color-light-background: #f4f0f1;
$theme-color-light-title: rgba(0, 0, 0, .65);
$theme-color-light-text: rgba(0, 0, 0, .5);
$theme-color-light-line: rgba(0, 0, 0, .25);

$theme-color-dark-layout: #1f1f1f;
$theme-color-dark-background: #181615;
$theme-color-dark-title: rgba(255, 255, 255, .65);
$theme-color-dark-text: rgba(255, 255, 255, .5);
$theme-color-dark-line: rgba(255, 255, 255, .25);

$black-filter: brightness(0) opacity(.65);
$white-filter: brightness(100) opacity(.65);
$blue-filter: opacity(1);
$green-filter: hue-rotate(-110deg) opacity(1);

@mixin container {
    width: 88%;
    padding: 0 6%;
}

// 页面容器外边距
view.container {
    @include container;
}

// 带阴影的 card
view.card {
    width: calc( 100% - 40px );
    padding: 0 20px;
    border-radius: 15px;
    background-color: $theme-color-light-layout;
    box-shadow: 0 1.6px 3.6px 0 rgba(0, 0, 0, .08), 
                0 0.3px 0.9px 0 rgba(0, 0, 0, .05);
}

image.icon {
    filter: $black-filter;
}

image.icon-sub {
    filter: $black-filter;
    opacity: .6;
}

// 顶部导航栏阴影
view.top-shadow {
    position: fixed;
    z-index: 9999;
    width: 100%;
    height: 10px;
    top: -10px;
    box-shadow: 0 1.6px 3.6px 0 rgba(0, 0, 0, .05);
}

page {
    background-color: $theme-color-light-background;
    color: $theme-color-light-text;
}

view, text {
    font-size: .97em;
    letter-spacing: .1em;
    font-family: Hiragino Sans GB, MicroSoft YaHei;
}

view.h1 {
    color: $theme-color-light-title;
    font-size: 1.5em;
    letter-spacing: .1em;
}

view.h2 {
    color: $theme-color-light-title;
    font-size: 1.3em;
    letter-spacing: .1em;
}

view.h3 {
    color: $theme-color-light-title;
    font-size: 1em;
    letter-spacing: .1em;
}

view.button {
    color: white;
    background-color: $theme-color-blue;
    text-align: center;
    padding: 10px;
    border-radius: 10px;
}
 
@media (prefers-color-scheme: dark){
    page {
        background-color: $theme-color-dark-background;
        color: $theme-color-dark-text;
    }

    view.card {
        background-color: $theme-color-dark-layout;
    }

    image.icon {
        filter: $white-filter;
    }

    image.icon-sub {
        filter: $white-filter;
    }

    view.h1 {
        color: $theme-color-dark-title;
        font-size: 1.2em;
    }

    view.h2 {
        color: $theme-color-dark-title;
        font-size: 1.3em;
    }
    
    view.h3 {
        color: $theme-color-dark-title;
        font-size: 1em;
    }
}