:root {
    --white: #ffffff;
    --black: #252525;
    --light-gray: #ececec;
    --gray: #c0c0c0;
    --dark-gray: #4d4d4d;
    --link-color: rgb(56, 188, 228);
    --width: 900px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: OpenSans;
    font-weight: 100;
    font-style: normal;
    font-size: 20px;
    text-align: left;
    color: var(--black);

    display: flex;
    flex-direction: column;
    align-items: center;
    letter-spacing: 0px;
}

header {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    gap: 20px;
    background-color: var(--light-gray);
}

h1 {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
}

h2 {
    font-size: 24px;
    font-weight: 100;
}

h3 {
    font-size: 14px;
    font-weight: 100;
}

strong {
    font-weight: 300;
}

p {
    text-indent: 0px;
    font-size: 20px;
}

ul {
    list-style-position: outside;
    margin-left: 20px;
}

ul li {
    padding: 5px;
}

.section {
    display: flex;
    flex-direction: column;
    align-items: left;

    max-width: var(--width);
    margin: 40px;
}

.block {
    display: flex;
    flex-direction: column;
    align-items: left;

    gap: 20px;
    margin: 20px;
}

.linkblock {
    display: flex;
    flex-direction: row;
    align-self: center;

    gap: 20px;
    margin: 0px;
}

a {
    font-family: SansOpen;
    font-weight: 100;
    font-size: 22px;
    color: var(--link-color);
    text-decoration: none;
}

a:visited {
    color: var(--link-color);
}

hr {
    margin: 20px;
    width: 60%;
    align-self: center;
    border: none;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--black), transparent);
}



.button {
    margin: 20px;
    display: inline-block;
    padding: 12px 18px;
    background-color: var(--white);
    color: var(--black);
    text-decoration: none;
    font-family: OpenSans;
    border: 2px solid var(--black);
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

.button:visited {
    color: var(--black);
}

.button:hover {
    background-color: var(--gray);
}

.button:active {
    transform: scale(0.97);
}