* {
    box-sizing: border-box;
}

:root {
    --color-background: #b6d2df;
    --color-link: #235f8b;
    --color-link-border: #23a1e8;
    --color-text: #1c2c6b;
    --footer-height: 3rem;
    --footer-color-background: rgba(118, 186, 230, 0.72);
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-background: #19243d;
        --color-link: #5b8af6;
        --color-link-border: #90adee;
        --color-text: #c4cfe8;
        --footer-color-background: rgba(0, 0, 0, 0.5);
    }
}

html {
    background-color: var(--color-background);
    color: var(--color-text);
    font-family: 'DM Sans', sans-serif;
    font-optical-sizing: auto;
    font-style: normal;
    font-weight: 300;
    margin: 0;
    padding: 0;
}

body {
    color: var(--color-text);
    margin: 0 auto;
    padding: 0;
}

a {
    border-bottom: 2px solid var(--color-link-border);
    color: var(--color-link);
    display: inline-block;
    font-weight: bold;
    line-height: 1.2;
    text-decoration: none;
}

a:hover {
    border-bottom: 2px dotted var(--color-link-border);
}

body {
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

.c-content {
    align-items: center;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
    height: calc(100vh - var(--footer-height));
    margin: 0 auto;
}

.c-image {
    cursor: pointer;
    filter: grayscale(0.7);
    max-width: 100%;
    transition: filter 0.8s ease;
}

.c-image:hover {
    filter: grayscale(0);
}

.c-footer {
    align-items: center;
    background-color: var(--footer-color-background);
    display: flex;
    font-size: 0.85rem;
    height: var(--footer-height);
    inset: auto 0 0 0;
    justify-content: center;
    padding: 1rem 1.5rem 1rem;
    position: fixed;
    width: 100%;
}