/* halfgate landing, /pair/ and 404. Colours and radii come from halfgate-tokens.css (apps/halfgate/design/tokens.json). */
.halfgate {
  --ink: var(--halfgate-on-surface);
  --mute: var(--halfgate-on-surface-variant);
  --paper: var(--halfgate-surface);
  --card: var(--halfgate-surface-container-low);
  --rule: var(--halfgate-outline-variant);
  --link: var(--halfgate-primary);
  --display: "Nunito", "halfgate-display-cjk", "halfgate-body", system-ui, sans-serif;
  --body: "halfgate-body", system-ui, sans-serif;
  --gutter: 16px;
  color-scheme: light;
}
.halfgate:not(:lang(zh)):not(:lang(ja)):not(:lang(ko)) { font-feature-settings: "pwid"; }
@media (min-width: 900px) { .halfgate { --gutter: 64px; } }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body.halfgate { margin: 0; background: var(--paper); color: var(--ink); font: 400 16px/1.8 var(--body); -webkit-font-smoothing: antialiased; font-synthesis: none; overflow-x: clip; }
.halfgate a { color: var(--link); text-underline-offset: .2em; text-decoration-thickness: 1px; }
.halfgate a:hover { color: var(--ink); }
.halfgate :focus-visible { outline: 2px solid var(--halfgate-secondary); outline-offset: 3px; border-radius: 2px; }
:where(.halfgate) :is(h1, h2, p, ul) { margin: 0; }
:where(.halfgate) ul { padding: 0; list-style: none; }
:where(.halfgate) :is(h1, h2) { font-family: var(--display); font-weight: 700; }
.halfgate:lang(ja) :is(h1, h2, .lede) { word-break: auto-phrase; }
.halfgate:lang(ko) { word-break: keep-all; }

.skip { position: absolute; left: 12px; top: -60px; z-index: 100; padding: 10px 18px; border-radius: var(--halfgate-radius-full); background: var(--ink); color: var(--paper) !important; text-decoration: none; }
.skip:focus { top: 12px; }

.bar { background: var(--paper); border-bottom: 1px solid var(--rule); }
.nav { max-width: 1120px; margin: 0 auto; padding: 10px var(--gutter); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; padding: 4px 0; font: 800 24px/1 var(--display); color: var(--ink) !important; }
.brand .word { font: 800 24px/1 "Nunito", sans-serif; letter-spacing: -.01em; }
.mark { width: 26px; height: 24px; flex: none; }

.lang { position: relative; font: 500 14px/1.4 system-ui, sans-serif; }
.lang summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: 6px; min-height: 40px; padding: 8px 14px; border-radius: var(--halfgate-radius-full); border: 1px solid var(--rule); background: var(--halfgate-surface-container-lowest); }
.lang summary::-webkit-details-marker { display: none; }
.lang svg { fill: none; stroke: currentColor; stroke-width: 1.6; }
.lang ul { position: absolute; right: 0; top: calc(100% + 6px); min-width: 180px; padding: 6px; border-radius: var(--halfgate-radius-medium); background: var(--halfgate-surface-container-lowest); border: 1px solid var(--halfgate-outline); z-index: 30; }
.lang a { display: block; padding: 8px 12px; border-radius: var(--halfgate-radius-small); color: var(--ink); text-decoration: none; }
.lang a:hover { background: var(--card); color: var(--ink); }
.lang a[aria-current] { color: var(--link); box-shadow: inset 2px 0 0 var(--halfgate-you); }

main { max-width: 1120px; margin: 0 auto; padding: 0 var(--gutter); }
.hero { padding: 56px 0 40px; max-width: 760px; }
.kicker { font: 700 14px/1.4 var(--display); letter-spacing: .08em; text-transform: uppercase; color: var(--halfgate-other); }
.hero h1 { margin-top: 14px; font-size: clamp(32px, 8vw, 56px); line-height: 1.15; letter-spacing: -.01em; }
.hero h1 + .lede { margin-top: 20px; }
.lede { font-size: 18px; line-height: 1.7; color: var(--halfgate-reading); max-width: 620px; }

.points ul { display: grid; gap: 16px; padding: 8px 0 24px; }
@media (min-width: 800px) { .points ul { grid-template-columns: repeat(3, 1fr); gap: 24px; } }
.points li { padding: 24px; border: 1px solid var(--rule); border-radius: var(--halfgate-radius-large); background: var(--card); }
.points li:nth-child(1) { border-top: 4px solid var(--halfgate-you); }
.points li:nth-child(2) { border-top: 4px solid var(--halfgate-other); }
.points li:nth-child(3) { border-top: 4px solid var(--halfgate-you); }
.points h2 { font-size: 20px; line-height: 1.3; }
.points p { margin-top: 8px; color: var(--halfgate-reading); }

.soon { padding: 24px 0 72px; }
.soon p { display: inline-block; padding: 12px 24px; border-radius: var(--halfgate-radius-full); background: var(--halfgate-secondary-container); color: var(--halfgate-on-secondary-container); font-weight: 700; }

.lost { padding-top: 56px; padding-bottom: 72px; }
.lost .code { font: 800 96px/1 "Nunito", sans-serif; color: var(--halfgate-you); }
.lost h1 { margin-top: 8px; font-size: clamp(28px, 7vw, 44px); line-height: 1.2; }
.lost .lede { margin-top: 16px; }
.lost p + p { margin-top: 16px; }

.foot { border-top: 1px solid var(--rule); padding: 40px var(--gutter) 48px; text-align: center; font-size: 14px; color: var(--mute); display: grid; gap: 16px; justify-items: center; }
.foot .brand { color: var(--ink); }
.foot-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 22px; }
.foot-links a, .langs a { display: inline-block; padding: 4px 2px; }
.langs { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 16px; font: 13px/1.6 system-ui, sans-serif; }
.langs a { color: var(--mute); text-decoration: none; }
.langs a[aria-current] { color: var(--link); }