/* Shared tokens, layout, header, footer, mobile nav */
:root {
  color-scheme: light;
  --bg: #f7f4ef;
  --paper: #fbf8f2;
  --ink: #161513;
  --muted: #6f6a62;
  --line: #e3dccf;
  --accent: #266df0;
  --code-bg: #15161a;
  --code-ink: #e8e3d6;
  --code-muted: #6e6a5e;

  /* One column width and type scale for every page */
  --content-gutter: 40px;
  --content-width: 680px;
  --type-h1: clamp(32px, 5vw, 44px);
  --type-h2: 22px;
  --type-h3: 1rem;
  --type-lead: 17px;
  --type-body: 1rem;
  --type-body-sm: 0.875rem;
  --leading-prose: 1.65;
  --main-pad-y-top: 56px;
  --main-pad-y-bottom: 64px;
  --h1-tracking: -0.02em;
  --h2-tracking: -0.012em;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: var(--type-body);
  line-height: var(--leading-prose);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: rgba(22, 21, 19, 0.25);
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-color: var(--ink);
}

.wrap {
  width: min(var(--content-width), calc(100% - var(--content-gutter)));
  margin: 0 auto;
}

/* Top bar */
header.top {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
  color: var(--ink);
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink);
  flex: 0 0 auto;
}

nav.top-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0px;
  font-size: 14px;
  flex-wrap: nowrap;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 40px;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

nav.top-nav::-webkit-scrollbar {
  height: 4px;
}

nav.top-nav::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 4px;
}

nav.top-nav a {
  color: var(--muted);
  text-decoration: none;
}

nav.top-nav a:hover {
  color: var(--ink);
}

.nav-link {
  white-space: nowrap;
  flex-shrink: 0;
  padding-right: 8px;
}

.icon-link {
  box-sizing: border-box;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  color: var(--muted);
}

.icon-link:hover {
  background: rgba(25, 24, 22, 0.05);
  color: var(--ink);
}

.icon-link svg {
  width: 16px;
  height: 16px;
  display: block;
}

.lang {
  box-sizing: border-box;
  height: 30px;
  min-width: 38px;
  padding: 0 7px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  font: 600 11.5px/1 Inter, ui-sans-serif, sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

.lang:hover {
  border-color: var(--ink);
}

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

/* Footer */
footer {
  padding: 28px 0 48px;
  margin-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: var(--type-body-sm);
  line-height: var(--leading-prose);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

footer a {
  color: var(--muted);
  text-decoration: none;
}

footer a:hover {
  color: var(--ink);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

@media (min-width: 601px) {
  .top-inner {
    gap: 16px;
  }

  nav.top-nav {
    gap: 0px;
  }
}

@media (max-width: 600px) {
  .top-inner {
    align-items: center;
  }

  nav.top-nav {
    font-size: 13px;
  }

  .icon-link {
    width: 28px;
    height: 28px;
  }

  .lang {
    height: 28px;
    min-width: 34px;
    font-size: 11px;
    padding: 0 5px;
  }
}