/* Seetiefe base layer: self-hosted fonts, reset, focus, scrollbar, utilities.
   Values come from tokens.css. No external font host. */

@font-face {
    font-family: "Barlow";
    src: url("../fonts/Barlow-Regular.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Barlow";
    src: url("../fonts/Barlow-Medium.woff2") format("woff2");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Barlow";
    src: url("../fonts/Barlow-SemiBold.woff2") format("woff2");
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Barlow";
    src: url("../fonts/Barlow-Italic.woff2") format("woff2");
    font-weight: 400;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: "Barlow Semi Condensed";
    src: url("../fonts/BarlowSemiCondensed-Medium.woff2") format("woff2");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Barlow Semi Condensed";
    src: url("../fonts/BarlowSemiCondensed-SemiBold.woff2") format("woff2");
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Barlow Semi Condensed";
    src: url("../fonts/BarlowSemiCondensed-Bold.woff2") format("woff2");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "JetBrains Mono";
    src: url("../fonts/JetBrainsMono-Regular.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    background: var(--paper);
    color-scheme: light;
    scrollbar-color: var(--steel) var(--paper);
    scrollbar-width: thin;
}

html[data-theme="dark"] {
    color-scheme: dark;
}

::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--paper);
}

::-webkit-scrollbar-thumb {
    background: var(--steel);
    border: 3px solid var(--paper);
    border-radius: 999px;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-text);
    font-size: var(--text-body);
    line-height: var(--leading-body);
    -webkit-font-smoothing: antialiased;
}

main {
    flex: 1 0 auto;
}

img,
svg,
video {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    color: inherit;
}

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

button {
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.1;
    margin: 0;
}

time,
table {
    font-variant-numeric: tabular-nums;
}

::selection {
    background: var(--accent);
    color: var(--paper);
}

input,
textarea,
[contenteditable]:not([contenteditable="false"]) {
    caret-color: var(--accent);
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Layout: the one 12-column grid that rules band, lists and footer. */
.wrap {
    width: min(calc(100% - 2 * var(--gutter)), var(--wrap));
    margin-inline: auto;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    column-gap: var(--gutter);
}

/* Small-caps label: meta, table heads, topics. */
.label {
    font-family: var(--font-display);
    font-size: var(--text-meta);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.skip-link {
    position: absolute;
    left: -100vw;
    top: 0;
}

.skip-link:focus {
    left: 24px;
    top: 16px;
    z-index: 10;
    background: var(--paper);
    color: var(--ink);
    padding: 8px 14px;
}