/* Web fonts (SIL Open Font License 1.1).
 * Pretendard: Korean and Latin body text. D2Coding: code, including Korean strings. */
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css");
@import url("https://cdn.jsdelivr.net/npm/@kfonts/d2coding@0.2.0/index.css");

/*
 * Keeps the stock DocC tutorial design, which matches Apple's Develop in Swift
 * tutorials, and adds only what the static GitHub Pages build needs.
 */

/* DocC's global reset can load with no rules on GitHub Pages, so it's repeated here. */
html {
    height: 100%;
}

body {
    height: 100%;
    margin: 0;
    min-width: 320px;
    -webkit-font-smoothing: antialiased;
}

abbr,
blockquote,
body,
button,
dd,
dl,
dt,
fieldset,
figure,
form,
h1,
h2,
h3,
h4,
h5,
h6,
input,
legend,
li,
ol,
p,
pre,
ul {
    margin: 0;
    padding: 0;
}

button {
    background: none;
    border: 0;
    color: inherit;
    cursor: pointer;
    font: inherit;
}

nav ol,
nav ul {
    list-style: none;
    margin: 0;
}

a:link,
a:visited {
    text-decoration: none;
}

#app {
    display: flex;
    flex-flow: column;
    min-height: 100%;
}

#app > * {
    min-width: 0;
}

#app .router-content {
    flex: 1;
}

#skip-nav,
.visuallyhidden {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(0 0 99.9% 99.9%);
    height: 1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
}

#skip-nav:focus {
    clip: auto;
    clip-path: none;
    height: auto;
    left: 12px;
    padding: 10px 14px;
    top: 10px;
    width: auto;
    z-index: 2000;
}

/* Values measured from Apple's Develop in Swift tutorials. */
html body {
    --typography-html-font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
    --typography-html-font-mono: D2Coding, ui-monospace, "SF Mono", Menlo, Monaco, monospace;
    --tutorial-step-border-radius: 15px;
    --color-nav-dark-root-subhead: rgb(84, 196, 188);
}

html body[data-color-scheme="light"] {
    --color-nav-root-subhead: rgb(56, 163, 156);
    --color-step-background: rgb(251, 251, 253);
    --color-step-focused: rgb(76, 169, 255);
}

@media (prefers-color-scheme: light) {
    html body[data-color-scheme="auto"] {
        --color-nav-root-subhead: rgb(56, 163, 156);
        --color-step-background: rgb(251, 251, 253);
        --color-step-focused: rgb(76, 169, 255);
    }
}

/* The color scheme toggle's label styles don't load in the static build. */
html .color-scheme-toggle {
    border: 1px solid rgb(0, 113, 227);
    border-radius: 12px;
    display: inline-flex;
    font-size: 12px;
    line-height: 16px;
    padding: 1px;
}

html .color-scheme-toggle input {
    appearance: none;
    position: absolute;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(0 0 99.9% 99.9%);
    height: 1px;
    width: 1px;
    overflow: hidden;
}

html .color-scheme-toggle .text {
    border: 1px solid transparent;
    border-radius: 10px;
    color: rgb(0, 113, 227);
    cursor: pointer;
    display: inline-block;
    min-width: 42px;
    padding: 1px 6px;
    text-align: center;
}

html .color-scheme-toggle input:checked + .text {
    background-color: rgb(0, 113, 227);
    border-color: rgb(0, 113, 227);
    color: #fff;
}

html .color-scheme-toggle input:focus-visible + .text {
    outline: 2px solid rgb(0, 113, 227);
    outline-offset: 1px;
}

html .step-container .step::before {
    width: 8px;
}

html .tutorial-hero .headline .heading,
html .tutorials-overview .hero .title,
.hero .headline {
    font-weight: 600;
}

/* Korean text wraps between words instead of inside a word. */
html:lang(ko) body,
html body {
    word-break: keep-all;
    overflow-wrap: anywhere;
}

/* Chapter heroes use black artwork with the subject on the right, like Apple's tutorials. */
html .tutorial-hero .hero.dark {
    background-color: #000;
}

html .tutorial-hero .bg {
    opacity: 1;
    background-position: right center;
}