/* Small devices */
@media only screen and (max-width: 768px) {
    body { 
        grid-template-areas: 
            "header"
            "sidebar"
            "content"
            "footer";
        --space-xs: 4px;
        --space-sm: 8px;
        --space-md: 16px;
        --space-lg: 32px;
    
        --grid-gap: 20px;
        --sidebar-padding-x: 30px;
        --sidebar-padding-y: 20px;
        --sidebar-width: 100%;
        --outer-padding-x: 32px;
        --outer-padding-y: 32px;
    }

    img {
        width: 100%;
    }
}

/* Medium devices */
@media only screen and (min-width: 768px) {
    body { 
        grid-template-areas: 
            "header header"
            "sidebar content"
            "footer footer";
        --space-xs: 6px;
        --space-sm: 12px;
        --space-md: 24px;
        --space-lg: 48px;

        --grid-gap: 40px;
        --sidebar-padding-x: 30px;
        --sidebar-padding-y: 30px;
        --sidebar-width: 250px;
        --outer-padding-x: 12%;
        --outer-padding-y: 32px;
    }
}

/* Large devices */
@media only screen and (min-width: 1200px) {
    body { 
        grid-template-areas: 
            "header header"
            "sidebar content"
            "footer footer";
        --space-xs: 8px;
        --space-sm: 16px;
        --space-md: 32px;
        --space-lg: 64px;

        --grid-gap: 40px;
        --sidebar-padding-x: 30px;
        --sidebar-padding-y: 30px;
        --sidebar-width: 300px;
        --outer-padding-x: 15%;
        --outer-padding-y: 32px;
    }
}

body {
    /* Make the site take up the full browser screen */
    min-height: 100vh;
    width: 100vw;

    display: grid;
    gap: var(--grid-gap);
    grid-template-columns: var(--sidebar-width) 1fr;
    grid-template-rows: auto 1fr auto;

    margin: 0;
    padding: var(--outer-padding-y) var(--outer-padding-x);
}

/* Grid areas */

.header {
    grid-area: header;
    text-align: center;
}

.sidebar {
    grid-area: sidebar;
}

.content {
    grid-area: content;
}

.footer {
    grid-area: footer;
    min-height: auto;
}

/* Two column setup */
@media only screen and (max-width: 1200px) {
    .two-columns { 
        grid-template-areas: 
            "left"
            "right";
        gap: 0;
    }
}

@media only screen and (min-width: 1200px) {
    .two-columns { 
        grid-template-areas: 
            "left right";
        gap: var(--grid-gap);
    }
}

.two-columns {
    display: grid;
    align-items: start;
}

.left-column {
    grid-area: left;
}

.right-column {
    grid-area: right;
}

/* Static page */

body.no-sidebar {
    grid-template-areas:
        "header"
        "content"
        "footer";
    grid-template-columns: auto;
    grid-template-rows: auto 1fr auto;
}

@media only screen and (max-width: 768px) {
    body.no-sidebar {
        padding: var(--outer-padding-y) var(--outer-padding-x);
    }
}

@media only screen and (min-width: 768px) {
    body.no-sidebar {
        padding: var(--outer-padding-y) calc(var(--outer-padding-x) + var(--sidebar-width)/2);
    }
}