* {
    margin: 0;
    padding: 0;
}

html {
    height: 100%;
    font: 100%/1.5 sans-serif;
    word-wrap: break-word;
    margin: 0 auto;
}

body {
    font-family: sans-serif;
    color: #000;
    background-color: #f4f4f4;
    margin: 0 auto;
    font-size: 18px;
    font-weight: 100;
    line-height: 1.4;
}

h1 {
    font-weight: 400;
    font-size: 2.7rem;
    margin: 0;
}

h2 {
    font-weight: lighter;
    font-size: 1.4rem;
    margin: 0;
}

h3 {
    font-weight: 400;
    font-size: 2.2rem;
}

h4 {
    font-weight: 100;
    font-size: 1.5rem;
}

h3,
h4 {
    position: relative;
    margin: 0.5em 0;
    line-height: 1.1;
    letter-spacing: -0.5px;
    color: #061b09;
}

time {
    font-weight: 100;
    font-family: 'Courier New', Courier, monospace;
    font-size: smaller;
}

a {
    color: #000;
    text-decoration: none;
}

a:hover {
    color: #797979;
}

a.articleLink {
    padding-left: 20px;
}

ul {
    list-style-type: none;
    padding-left: 20px;
}

ul li::before {
    content: none;
    font-size: smaller;
    margin-right: 8px;
    color: #2b2b2b;
}

li {
    padding-bottom: 10px;
}

.flag,
.pdf {
    vertical-align: middle;
}

footer {
    font-style: italic;
    text-align: center;
    font-size: small;
}

main {
    max-width: 1000px;
    margin: 0 auto;
    padding-left: 10px;
    padding-right: 10px;
}

header {
    padding: 0;
    margin: 0;
    background-color: #061b09;
    color: white;
    width: 100%;
}

header .inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 8px;
    display: flex;
    align-items: stretch;
    gap: 30px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 6rem;
    line-height: 0;
    font-weight: lighter;
    font-family: 'Courier New', Courier, monospace;
    letter-spacing: -0.25em;
}

hr {
    height: 0.15em;
    background: #000000;
    border: none;
}

.tag {
    border: 1px solid rgb(86, 86, 86);
    border-radius: 5px;
    padding: 3px;
    color: rgb(86, 86, 86);
}

.maths {
    background-color: #FFEEAD;
}

.astronomy {
    background-color: #D0E6FF
}

.lined {
    position: relative;
    display: flex;
    align-items: center;
}

.lined::after {
    content: "";
    flex: 1;
    height: 3px;
    background: #000000;
    margin-left: 0.5rem;
    border-radius: 20px;
    position: relative;
}