html {
    font-size: 100%;
    --bg-color: #181818;
    --body-color: #fff8f0;
    --heading-font: "Enfantine Web", monospace;
    --heading-color: #caffbf;
    --link-font: "Trebuchet MS", sans-serif;
    --link-color-normal: #9bf6ff;
    --link-border-color-normal: #9bf6ff;
    --link-color-hover: #fdffb6;
    --link-border-color-hover: #fdffb6;
    --datetime-font: "Enfantine Web", monospace;
    --datetime-color: #ffd6a5;
}

/*16px*/

body {
    background-color: var(--bg-color);
    line-height: 1.65;
    color: var(--body-color);
    margin: 0;
}

p {
    margin-bottom: 1.15rem;
}

h1,
h2,
h3,
h4,
h5 {
    margin: 2.75rem 0 1.05rem;
    /* font-family: "Dank Mono", monospace; */
    font-family: var(--heading-font);

    font-weight: 500;
    line-height: 1.15;
}

h1 {
    margin-top: 0;
    font-size: 3.052em;
}

h2 {
    font-size: 2.441em;
}

h3 {
    font-size: 1.953em;
}

h4 {
    font-size: 1.563em;
    padding-bottom: 1em;
    color: var(--heading-color);
}

h5 {
    font-size: 1.25em;
}

small,
.text_small {
    font-size: 0.8em;
}

.card {
    margin: 2em 2em 0 2em;
    display: flex;
    justify-content: start;
    flex-direction: column;
}

.link {
    /* text-transform : lowercase; */
    text-decoration: none;
    color: var(--link-color-normal);
    font-family: var(--link-font);
    font-weight: 500;
    letter-spacing: 1px;
    margin: 0em 0em 1em 0em;
    padding: 0.5em;
    transition: color 0.15s, left 0.15s, border 0.15s;
    position: relative;
    left: 0;
    border: 0.5px solid var(--link-border-color-normal);
    border-radius: 3px;
}

.link:hover {
    color: var(--link-color-hover);
    left: 6px;
    border: 0.5px solid var(--link-border-color-hover);
}

.container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    margin: auto;
}

.main {
    height: 100vh;
    width: 90vw;
    margin: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.not-highlight {
    opacity: 0.5;
    color: #fefefa;
}

#datetime {
    margin: 1em;
    padding: 1em;
    /* width  : 90vw; */
    text-align: center;
    color: var(--datetime-color);
    font-family: var(--datetime-font);
    /* font-weight: 600; */
    font-size: 1.563em;
}