:root {
    /* CSS HEX */
    --cornsilk: #fff8dcff;
    --jet-black: #293132ff;
    --graphite: #474044ff;
    --charcoal: #4f5165ff;
    --glaucous: #547aa5ff;
    --icy-blue: #A9CEF4FF;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0px;
    background-color: var(--cornsilk);
    font-family: system-ui, sans-serif;
    color: var(--jet-black);
    line-height: 1.6;
}

a {
    color: var(--charcoal);
}
a:hover {
    color: var(--glaucous);
}

h1, h2, h3 {
    line-height: 1.2;
}

.container {
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
    row-gap: 2rem;
}

header {
    /*background-color: var(--graphite);*/
    grid-row: 1;

    .header {
        a {
            text-decoration: none;
        }

        margin: 2rem auto;
        width: min(80rem, calc(100% - 2rem));

        display: flex;
        justify-content: space-between;
        align-items: end;

        .header-logo-box {
            display: grid;
            grid-template-rows: auto auto;
            grid-template-columns: auto auto;
            column-gap: 1rem;
            row-gap: 0.1rem;
            align-items: center;

            #header-logo {
                grid-row: 1 / span 2;
                align-self: center;
            }
            #header-logo-title {
                grid-row: 1;
                grid-column: 2;
                font-size: 2em;
                font-weight: 700;
                a {
                    color: var(--jet-black);
                }
                margin-top: auto;
                margin-bottom: 0px;
            }
            #header-logo-subtitle {
                grid-row: 2;
                grid-column: 2;
                font-size: 1em;
                font-weight: 600;
                color: var(--jet-black);
                a {
                    color: var(--jet-black);
                }
                a:hover {
                    color: var(--glaucous);
                }
                margin-top: 0px;
                margin-bottom: auto;
            }
        }

        nav {
            display: flex;
            gap: 1.5rem;
        }
        nav, nav > a {
            color: var(--jet-black);
            font-weight: 500;
        }
        nav a:hover {
            color: var(--glaucous);
        }
    }

    border-bottom: 2px solid var(--charcoal);
}

.content {
    grid-row: 2;

    width: min(60rem, calc(100% - 2rem));
    margin-inline: auto;
}


.github-icon {
    height: 1em;
    vertical-align: -0.1em;
    margin-right: 0.1em;
}

section {
    p {
        text-align: justify;
    }
}

footer {
    background-color: var(--charcoal);
    .footer {
        margin: 0.1rem auto;
        width: min(80rem, calc(100% - 2rem));

        display: flex;
        justify-content: space-between;

        color: var(--icy-blue);
        a {
            color: var(--icy-blue);
        }
    }
}

.two-panel {
    display: flex;
    align-items: center;
    gap: 3rem;

    > div {
        flex: 1;
    }

    .two-panel-image {
        width: 15rem;
        flex-shrink: 0;
    }
}

@media (max-width: 650px) {
    .header {
        flex-direction: column;
        gap: 1.5rem;
        align-items: flex-start;
    }

    .header-logo-box {
        align-self: center;
    }

    .header nav {
        align-self: center;
    }

    .two-panel {
        flex-direction: column;
        align-items: center;

        .two-panel-image {
            width: 80%;
        }
    }
}