:root {
    --background: #fce186;
    --black: #060a05;
    --white: #fdfdfd;

    --primary-highlight: #ca61c3;
    --primary-shadow: #586994;

    --secondary-highlight: #a57662;
    --secondary-shadow: #4c2c27;

    --border-radius: 0.5em;
    --gradient-angle: 120deg;
    --border-width: 5px;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1em;
    min-height: 100vh;

    font-family: "Crimson Text", serif;
    font-weight: 400;
    font-style: normal;
    font-display: swap;

    text-align: center;

    color: var(--black);
}

body {
    background-color: var(--background);
}

hgroup {
    display: flex;
    flex-direction: column;
    gap: 1em;
    margin-bottom: 4em;
}

hgroup h1, hgroup h2 {
    margin: 0;
}

h1 {
    font-size: 500%;
    color: var(--white);
    text-shadow: 0 0 0.1em var(--secondary-shadow);
}

h1, h2, h3 {
    font-weight: 600;
}

header nav {
    position: absolute;
    top: 20px;
    right: 20px;
}

header nav ul {
    display: flex;
    gap: 1em;
    list-style: none;
    margin: 0;
    padding: 0;
}

header nav a:any-link {
    text-decoration: none;
    color: var(--black);
}

header nav a:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

button {
    background: linear-gradient(var(--gradient-angle), var(--primary-highlight), var(--primary-shadow));
    border-radius: var(--border-radius);
    border: none;
    color: var(--white);
    font-weight: 600;
}

.pattern-gradient-border {
    /* safari :( */
    padding: var(--border-width);
    background: linear-gradient(var(--gradient-angle), var(--primary-highlight), var(--primary-shadow));
    border-radius: var(--border-radius);
    display: inline-block;
}

.pattern-gradient-border input[type="text"] {
    border: none;
    background: var(--white);
    border-radius: calc(var(--border-radius) - var(--border-width));
    display: block;
}

input[type="text"]::placeholder {
    color: var(--secondary-highlight);
    opacity: 0.75;
}

form.search {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.7em;
    justify-content: center;
}

button, input[type="text"] {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    margin: 0;

    padding: 1em;
    /* Means that e.g. width includes border and padding. */
    box-sizing: border-box;

    font-size: 120%;
}

input[type="text"] {
    width: 10em;
}

.word-list ul {
    display: flex;
    flex-direction: column;
    gap: 0.7em;
    list-style: none;
    padding: 0;
}

.book { display: none; }

hr {
    border: none;
    height: var(--border-width);
    background: linear-gradient(var(--gradient-angle), var(--primary-highlight), var(--primary-shadow));
    margin: 20px 0;
}

aside {
    font-size: 80%;
}

a {
    color: var(--secondary-shadow);
    text-decoration-color: var(--secondary-shadow);
}

a.visited {
    color: var(--secondary-highlight);
    text-decoration-color: var(--secondary-highlight);
}