/* The OP–XY's own language: an aluminium body, a black screen, lower-case
   labels, and the screen header's stepped grey bar. The screen's shades and
   type sizes are the SDK's (sdk/browser/display.mjs, docs/ux.md). */

@font-face {
  /* The OP–XY draws its screen in Univers, used here when it is installed.
     To serve a licensed webfont, add it as assets/fonts/xy.woff2 and append
     url("assets/fonts/xy.woff2") format("woff2") to src. */
  font-family: "XY";
  src: local("Univers LT Std"), local("UniversLTStd-Roman"), local("Univers"),
       local("Univers Next");
  font-display: swap;
}

:root {
  --body: #e4e4e1;
  --body-2: #d9d9d5;
  --ink: #0d0d0d;
  --ink-2: #555553;
  --ink-3: #8a8a86;
  --rule: #c3c3bf;
  --screen: #000;

  /* The screen header's eight steps, black to light grey. */
  --s0: #000000; --s1: #323232; --s2: #4b4b4b; --s3: #646464;
  --s4: #7d7d7d; --s5: #969696; --s6: #afafaf; --s7: #cdcdcd;
  --lit: #cbcbcb;    /* bright header text on the dark half */
  --grey-t: #5a5a5a; /* the other page's titles */
  --grey-v: #707070; /* the other page's values */

  --xy: "XY", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --gut: 16px;
  --max: 1240px;
  --r: 10px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--body); color: var(--ink);
  font: 400 15px/1.5 var(--xy);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  font-variant-numeric: tabular-nums;
}
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink-2); }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 3px; }
h1, h2, h3, p { margin: 0; }
img, video, svg { display: block; max-width: 100%; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gut); }
@media (min-width: 720px) { :root { --gut: 32px; } }

.label, .kicker, .cap, .num, .sub-label {
  font-size: 12px; letter-spacing: .02em; text-transform: lowercase; color: var(--ink-2); font-weight: 400;
}

/* top bar */
.bar { position: sticky; top: 0; z-index: 10; background: rgba(228, 228, 225, .9);
  backdrop-filter: saturate(1.2) blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--rule); }
.bar-in { display: flex; align-items: center; justify-content: space-between; height: 52px; gap: 16px; }
.mark { display: flex; align-items: center; gap: 8px; text-decoration: none; font-size: 13px; white-space: nowrap; }
.mark svg { width: 18px; height: 18px; fill: none; stroke: var(--ink); stroke-width: 1.2; }
.mark svg rect + rect { fill: var(--ink); stroke: none; }
.mark span { color: var(--ink-2); }
.mark b { font-weight: 500; }
.nav { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.nav::-webkit-scrollbar { display: none; }
.nav a { font-size: 13px; text-decoration: none; padding: 6px 10px; border-radius: 999px; white-space: nowrap; color: var(--ink-2); }
.nav a:hover { background: var(--body-2); color: var(--ink); }
.mark { flex: none; }
@media (max-width: 560px) {
  .nav a.opt, .mark span { display: none; }
  .nav a { padding: 6px 8px; }
}

/* hero */
.hero { display: grid; gap: 40px; padding-top: 56px; padding-bottom: 40px; }
@media (min-width: 1000px) { .hero { grid-template-columns: 5fr 7fr; align-items: center; padding-top: 88px; padding-bottom: 64px; } }
.hero h1 { max-width: 9.5em; font-size: clamp(38px, 4.6vw, 60px); line-height: 1.02; font-weight: 300; letter-spacing: -.02em; margin: 14px 0 20px; }
.lead { font-size: 17px; line-height: 1.55; color: var(--ink-2); max-width: 34em; }
.lead a { color: var(--ink); }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 16px; border-radius: 999px;
  border: 1px solid var(--ink); font-size: 13px; text-decoration: none; white-space: nowrap; transition: background .15s, color .15s; }
.btn:hover { background: var(--ink); color: var(--body); }
.btn-ink { background: var(--ink); color: var(--body); }
.btn-ink:hover { background: var(--s2); border-color: var(--s2); color: var(--body); }

/* the screen: black glass in a thin bezel */
.device { margin: 0; }
.screen { position: relative; background: var(--screen); border-radius: var(--r); overflow: hidden;
  box-shadow: 0 0 0 1px #000, 0 0 0 5px #1b1b1b, 0 0 0 6px #000, 0 18px 40px -18px rgba(0,0,0,.45); }
.screen video, .screen img { width: 100%; height: 100%; object-fit: cover; }
.screen-hero { aspect-ratio: 1476 / 464; margin: 6px; }
.device .cap { margin-top: 18px; padding-left: 6px; }
.zoom { cursor: zoom-in; }

/* the header bar, drawn as the SDK draws it */
.xy { width: 100%; height: auto; font-family: var(--xy); }
.xy text { font-family: var(--xy); }

.spec { margin: 36px 6px 0; }
.hdr-wide { display: none; }
.hdr-narrow { display: grid; gap: 16px; }
@media (min-width: 640px) { .hdr-wide { display: block; } .hdr-narrow { display: none; } }

/* legend + filter */
.legend { display: grid; gap: 14px; padding-top: 8px; padding-bottom: 24px; border-top: 1px solid var(--rule); padding-top: 24px; }
@media (min-width: 900px) { .legend { grid-template-columns: 120px 1fr; } }
.legend-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px 28px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.legend-list li { display: grid; gap: 6px; align-content: start; font-size: 13px; color: var(--ink-2); }

.st { display: inline-flex; align-items: center; gap: 7px; height: 24px; padding: 0 10px 0 9px; border-radius: 999px;
  font-size: 12px; line-height: 1; white-space: nowrap; justify-self: start; border: 1px solid transparent; }
.st i { width: 7px; height: 7px; border-radius: 50%; flex: none; }
.st-live { background: var(--ink); color: var(--body); }
.st-live i { background: var(--body); box-shadow: 0 0 0 2px rgba(228,228,225,.25); }
.st-review { background: var(--s2); color: var(--s7); }
.st-review i { background: var(--s7); }
.st-soon { border-color: var(--ink); color: var(--ink); }
.st-soon i { border: 1px solid var(--ink); }
.st-diy { border: 1px dashed var(--ink-3); color: var(--ink-2); }
.st-diy i { border: 1px dashed var(--ink-3); }
.screen .st { position: absolute; top: auto; bottom: 10px; right: 10px; }

.filter { display: flex; flex-wrap: wrap; gap: 8px; padding-bottom: 10px; position: sticky; top: 52px; z-index: 5;
  padding-top: 10px; background: var(--body); border-bottom: 1px solid var(--rule); }
@media (max-width: 640px) {
  /* One row that scrolls sideways, so it never covers more than a strip. */
  .filter { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
  .filter::-webkit-scrollbar { display: none; }
  .chip { flex: none; }
}
.chip { font: inherit; font-size: 13px; height: 32px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--rule);
  background: transparent; color: var(--ink-2); cursor: pointer; display: inline-flex; gap: 8px; align-items: center; }
.chip b { font-weight: 400; color: var(--ink-3); }
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--body); }
.chip[aria-pressed="true"] b { color: var(--s5); }

/* projects */
.project { padding-top: 72px; padding-bottom: 24px; }
.sec-head { display: grid; grid-template-columns: 1fr; gap: 10px 24px; padding-top: 18px; border-top: 1px solid var(--ink); }
@media (min-width: 900px) { .sec-head { grid-template-columns: 120px 1fr auto; align-items: start; } }
.num { font-size: 12px; padding-top: 6px; }
.sec-head h2 { font-size: clamp(34px, 4.6vw, 56px); font-weight: 300; letter-spacing: -.02em; line-height: 1; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 16px; }
.sec-head h2 small { font-size: 13px; letter-spacing: 0; color: var(--ink-2); }
.sub { margin-top: 12px; font-size: 17px; color: var(--ink-2); max-width: 40em; }
.sec-tools { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; padding-top: 6px; }
@media (min-width: 900px) { .sec-tools { flex-direction: column; align-items: flex-end; } }
.tally { font-size: 12px; color: var(--ink-2); white-space: nowrap; }

.p-media { margin: 36px 6px 0; }
.p-media .screen { aspect-ratio: auto; }
.p-body { display: grid; gap: 32px; margin-top: 40px; }
@media (min-width: 900px) { .p-body { grid-template-columns: 120px 1fr; gap: 24px; } }
.p-desc p { font-size: 17px; line-height: 1.6; max-width: 38em; }
.p-desc p + p { margin-top: 14px; color: var(--ink-2); }
@media (min-width: 900px) { .p-desc { grid-column: 2; } }

.group-h { display: flex; align-items: baseline; gap: 12px; margin: 56px 0 18px; }
.group-h h3 { font-size: 13px; font-weight: 500; }
.group-h span { font-size: 13px; color: var(--ink-2); }
.cards { display: grid; gap: 40px 24px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); margin-top: 48px; }
.group-h + .cards { margin-top: 0; }

.card { display: grid; gap: 14px; align-content: start; }
.card[hidden] { display: none; }
.card .screen { aspect-ratio: 480 / 220; margin: 6px; }
.card .screen.short { aspect-ratio: 960 / 440; }
.thumbs { display: flex; gap: 8px; margin: 2px 6px 0; }
.thumbs button { all: unset; cursor: pointer; width: 64px; aspect-ratio: 480/220; border-radius: 4px; overflow: hidden; background: #000;
  outline: 1px solid var(--rule); outline-offset: 1px; }
.thumbs button[aria-current="true"] { outline: 1px solid var(--ink); }
.thumbs button:focus-visible { outline: 2px solid var(--ink); }
.thumbs img { width: 100%; height: 100%; object-fit: cover; }
.card-h { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 6px; }
.card-h h3 { font-size: 22px; font-weight: 400; letter-spacing: -.01em; }
.card-h h3 small { display: block; font-size: 12px; color: var(--ink-2); letter-spacing: 0; margin-top: 2px; }
.card p { font-size: 14px; line-height: 1.55; color: var(--ink-2); }
.card p.scr { font-size: 13px; color: var(--ink-3); }
.ctrls { display: grid; grid-template-columns: 52px repeat(4, 1fr); font-size: 12px; border-top: 1px solid var(--rule); }
.ctrls > * { padding: 6px 0; border-bottom: 1px solid var(--rule); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ctrls span { color: var(--ink-3); }
.ctrls em { font-style: normal; color: var(--ink-3); }
.keys { display: flex; flex-wrap: wrap; gap: 4px; }
.keys span { font-size: 11px; min-width: 30px; text-align: center; padding: 3px 5px; border: 1px solid var(--rule); border-radius: 3px; color: var(--ink-2); }
.meta { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 12px; color: var(--ink-2); }
.meta a { color: var(--ink); }

/* sdk */
.sdk { padding-top: 88px; padding-bottom: 64px; }
.prs { list-style: none; margin: 36px 0 0; padding: 0; border-top: 1px solid var(--rule); }
@media (min-width: 900px) { .prs { margin-left: 144px; } }
.prs li { display: grid; grid-template-columns: 64px 1fr auto; gap: 12px; align-items: baseline; padding: 12px 0; border-bottom: 1px solid var(--rule); font-size: 14px; }
.prs .n { color: var(--ink-2); font-size: 13px; }
.prs a { text-decoration: none; }
.prs a:hover { text-decoration: underline; }
.prs .for { font-size: 12px; color: var(--ink-3); margin-left: 8px; }
.pr-st { font-size: 12px; display: inline-flex; align-items: center; gap: 6px; }
.pr-st.closed { color: var(--ink-3); }
.pr-st.merged { color: var(--ink); }
.pr-st.open { color: var(--ink-2); }

/* footer */
.foot { border-top: 1px solid var(--ink); padding: 28px 0 48px; font-size: 13px; }
.foot-in { display: grid; gap: 10px; }
.foot .fine { color: var(--ink-3); font-size: 12px; max-width: 70em; }
#synced { color: var(--ink-3); }

/* lightbox */
.lightbox { border: 0; padding: 0; background: transparent; max-width: min(1200px, 96vw); width: 96vw; overflow: visible; }
.lightbox::backdrop { background: rgba(10,10,10,.82); backdrop-filter: blur(4px); }
.lightbox form { display: flex; justify-content: flex-end; margin-bottom: 14px; }
.lb-close { font: inherit; font-size: 13px; color: #ddd; background: none; border: 1px solid #555; border-radius: 999px; height: 32px; padding: 0 14px; cursor: pointer; }
.lb-close:hover { border-color: #ddd; }
.lb-media { margin: 6px; }
.lightbox .cap { color: #aaa; margin-top: 18px; padding-left: 6px; text-transform: none; }

/* Lucide icons, drawn at the type's weight */
.i { width: 14px; height: 14px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.5;
  stroke-linecap: round; stroke-linejoin: round; display: inline-block; vertical-align: -2px; }
.btn .i, .nav .i, .lb-close .i { width: 15px; height: 15px; }
.nav a { display: inline-flex; align-items: center; gap: 6px; }
.meta > * { display: inline-flex; align-items: center; gap: 5px; }
.meta .i { color: var(--ink-3); }
.lb-close { display: inline-flex; align-items: center; gap: 6px; }

/* placeholder screen */
.blank text { font-family: var(--xy); }