:root {
  --ink: #101218;
  --muted: #6a7080;
  --line: #e8eaf0;
  --soft: #fafafc;
  --brand: #7c5cff;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font: 16px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }

section[id], main[id], #download { scroll-margin-top: 72px; }

.skip {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 100;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  text-decoration: none;
}
.skip:focus { left: 8px; }

/* ---------- nav ---------- */

.top {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(16, 18, 24, .06);
}

.top-inner { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.brand { display: flex; align-items: center; gap: 9px; text-decoration: none; font-weight: 650; font-size: 14.5px; letter-spacing: -.01em; }
.brand img { border-radius: 7px; }
.top nav { display: flex; align-items: center; gap: 26px; font-size: 13.5px; }
.top nav a { text-decoration: none; color: var(--muted); transition: color .18s; }
.top nav a:hover { color: var(--ink); }
.top nav a.ghost { color: var(--ink); border: 1px solid var(--line); border-radius: 999px; padding: 5px 15px; }
.top nav a.ghost:hover { border-color: #cfd3de; }

.hero-stat {
  position: absolute;
  top: 2px;
  right: 0;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px 4px 8px;
  border: 1px solid #e5e8ef;
  border-radius: 7px;
  background: #f7f8fb;
  color: #4a5060;
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.hero-stat[hidden] { display: none; }
.hero-stat svg { width: 13px; height: 13px; fill: currentColor; opacity: .5; }
.hero-stat b { color: var(--ink); font-weight: 700; }

/* ---------- hero ---------- */

.hero { position: relative; padding: 24px 0 64px; overflow: hidden; }

.hero-inner { position: relative; text-align: center; }

.tags { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 7px; }

.tag-item {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border: 1px solid #e2e5ec;
  border-radius: 6px;
  background: #f6f7f9;
  color: #2f3442;
  font-size: 12px;
  font-weight: 650;
  line-height: 1.55;
  letter-spacing: .015em;
}

.tag-version {
  background: #23262f;
  border-color: #23262f;
  color: #fff;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
}

/* Note: not `.tag-item.stage` — that would also match the carousel `.stage` rule. */
.tag-stage { background: #fff7e7; color: #8a5a00; border-color: #f0dfbe; }
.tag-stage.is-stable { background: #edf8f0; color: #1f7a3d; border-color: #cfe9d6; }

.tag-rust,
.tag-tauri,
.tag-vue,
.tag-mit { font-family: var(--mono); font-size: 11.5px; letter-spacing: .03em; }

h1 {
  margin: 14px auto 0;
  max-width: 16em;
  font-size: clamp(30px, 3.8vw, 52px);
  line-height: 1.12;
  letter-spacing: -.035em;
  font-weight: 760;
}

/* Typed one character at a time; added by app.js so no-JS still reads normally. */
.hero-title .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(.38em) scale(.96);
  animation: char-in .42s cubic-bezier(.2, .7, .2, 1) forwards;
  animation-delay: var(--d, 0ms);
}

@keyframes char-in {
  to { opacity: 1; transform: none; }
}

.hero-title .caret {
  display: inline-block;
  width: 3px;
  height: .86em;
  margin-left: 5px;
  border-radius: 2px;
  background: var(--brand);
  vertical-align: -.04em;
  opacity: 0;
}

.hero-title .caret.show {
  opacity: 1;
  animation: caret-blink 1s steps(1, end) infinite;
}

.hero-title .caret.done {
  animation: none;
  opacity: 0;
  transition: opacity .4s ease;
}

@keyframes caret-blink {
  0%, 48% { opacity: 1; }
  50%, 98% { opacity: 0; }
  100% { opacity: 1; }
}

.lede {
  margin: 10px auto 0;
  max-width: 38em;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

/* ---------- coverflow carousel ---------- */

.carousel { position: relative; margin-top: 26px; outline: none; }

.stage {
  position: relative;
  height: clamp(250px, 40vh, 380px);
  perspective: 1500px;
  perspective-origin: 50% 45%;
}

.glow {
  position: absolute;
  inset: 8% 20%;
  border-radius: 50%;
  filter: blur(62px);
  opacity: .8;
  transition: background 1s ease;
  pointer-events: none;
}

.slides {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
}

.slide {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 19%;
  right: 19%;
  margin: 0;
  opacity: 0;
  transform: translate3d(0, 0, -260px) scale(.6);
  transition:
    transform .8s cubic-bezier(.2, .8, .2, 1),
    opacity .55s ease;
  will-change: transform, opacity;
  pointer-events: none;
}

.slide.is-prev {
  opacity: .82;
  transform: translate3d(-50%, 0, -120px) scale(.74) rotateY(20deg);
  pointer-events: auto;
  cursor: pointer;
}

.slide.is-next {
  opacity: .82;
  transform: translate3d(50%, 0, -120px) scale(.74) rotateY(-20deg);
  pointer-events: auto;
  cursor: pointer;
}

/* Keep the frame sharp, blur only the screenshot inside. */
.slide.is-prev .window img,
.slide.is-next .window img {
  filter: blur(3.5px) saturate(.9) brightness(1.03);
  transition: filter .22s ease;
}

/* Pointing at a preview sharpens it: nothing under the cursor stays blurred. */
.slide.is-prev:hover .window img,
.slide.is-next:hover .window img {
  filter: none;
}

.slide.is-prev .titlebar,
.slide.is-next .titlebar { background: #f3f3f6; }

.slide.is-prev:hover,
.slide.is-next:hover { opacity: 1; }

.slide.is-active {
  opacity: 1;
  transform: none;
  z-index: 3;
  pointer-events: auto;
}

.window {
  position: relative;
  height: 100%;
  border-radius: 14px;
  background: #fff;
  border: 1px solid rgba(16, 18, 24, .08);
  box-shadow:
    0 44px 80px -36px rgba(20, 28, 70, .45),
    0 10px 26px -16px rgba(20, 28, 70, .22);
  overflow: hidden;
  transition: box-shadow .6s ease;
}

/* Soften where the tall screenshot is clipped by the card. */
.window::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 64px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), #fff 90%);
  pointer-events: none;
}

.slide.is-prev .window,
.slide.is-next .window {
  border-color: rgba(16, 18, 24, .16);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, .75),
    0 30px 64px -30px rgba(20, 28, 70, .55),
    0 10px 24px -16px rgba(20, 28, 70, .26);
}

.slide.is-active .window {
  box-shadow:
    0 60px 110px -44px rgba(20, 28, 70, .5),
    0 16px 36px -22px rgba(20, 28, 70, .26);
}

.titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 12px;
  background: #f7f7f9;
  border-bottom: 1px solid rgba(16, 18, 24, .06);
}

.titlebar i { width: 8px; height: 8px; border-radius: 50%; background: #e2e3e9; }
.titlebar span { margin-left: 7px; font-size: 10.5px; color: #9aa0ad; letter-spacing: .04em; }

.window img { width: 100%; height: calc(100% - 28px); object-fit: cover; object-position: top center; }

.arrow {
  position: absolute;
  top: 50%;
  z-index: 6;
  width: 36px;
  height: 36px;
  margin-top: -18px;
  border: 1px solid rgba(16, 18, 24, .1);
  border-radius: 50%;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(8px);
  box-shadow: 0 6px 20px -8px rgba(16, 24, 64, .35);
  color: #3c4150;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  opacity: .75;
  transition: opacity .2s, transform .2s, background .2s;
}

.arrow:hover { opacity: 1; transform: scale(1.06); background: #fff; }
.arrow.prev { left: 1%; }
.arrow.next { right: 1%; }

.carousel-foot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
}

.caption {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  min-height: 26px;
  text-align: center;
  transition: opacity .25s ease, transform .25s ease;
}
.caption.swap { opacity: 0; transform: translateY(4px); }

.tag {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--accent, var(--brand));
  background: color-mix(in srgb, var(--accent, var(--brand)) 10%, #fff);
}

.caption strong { font-size: 15px; letter-spacing: -.01em; }
.caption .cdesc { flex-basis: 100%; font-size: 12.5px; color: var(--muted); }
.caption.swap .cdesc { opacity: 0; }

.dots { display: flex; align-items: center; gap: 6px; flex: 0 0 auto; }

.dot {
  position: relative;
  width: 22px;
  height: 5px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: #cdd2dd;
  cursor: pointer;
  overflow: hidden;
  transition: width .3s, background .3s;
}

.dot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--accent, var(--brand));
  transform: scaleX(0);
  transform-origin: left center;
}

.dot.is-active { width: 34px; }
.dot.is-active::after { animation: dotfill 2.5s linear forwards; }
.carousel.is-paused .dot.is-active::after { animation-play-state: paused; }

@keyframes dotfill { to { transform: scaleX(1); } }

/* ---------- downloads ---------- */

.download {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 900px;
  margin-top: 22px;
}

/* Soft tint behind the cards so the frosted glass has something to pick up. */
.download::before {
  content: "";
  position: absolute;
  inset: -16px -10px -12px;
  z-index: -1;
  border-radius: 24px;
  background:
    radial-gradient(300px 110px at 24% 0%, rgba(124, 92, 255, .17), transparent 72%),
    radial-gradient(300px 110px at 76% 34%, rgba(20, 160, 138, .14), transparent 72%),
    linear-gradient(180deg, rgba(244, 246, 251, .75), rgba(255, 255, 255, 0));
  filter: blur(8px);
  pointer-events: none;
}

.dl {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border: 1px solid rgba(255, 255, 255, .85);
  border-radius: 13px;
  background: rgba(255, 255, 255, .58);
  -webkit-backdrop-filter: blur(16px) saturate(1.15);
  backdrop-filter: blur(16px) saturate(1.15);
  text-decoration: none;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .95),
    0 10px 26px -20px rgba(16, 24, 64, .42);
  transition: transform .2s, box-shadow .2s, border-color .2s, background .2s;
}

.dl:hover { transform: translateY(-2px); background: rgba(255, 255, 255, .8); box-shadow: inset 0 1px 0 #fff, 0 18px 34px -24px rgba(16, 24, 64, .45); }

.dl.is-current {
  background: rgba(255, 255, 255, .95);
  border-color: rgba(124, 92, 255, .34);
  box-shadow:
    inset 0 1px 0 #fff,
    0 0 0 1px rgba(124, 92, 255, .14),
    0 20px 40px -26px rgba(124, 92, 255, .55);
}
.dl.is-current:hover { background: #fff; }

.dl-badge {
  position: absolute;
  top: -9px;
  right: 12px;
  padding: 1px 9px;
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font-size: 10.5px;
  font-weight: 650;
  letter-spacing: .06em;
}

.dl-icon { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; flex: 0 0 auto; }
.dl-icon svg { width: 19px; height: 19px; }
.dl-icon.apple { background: #f2f3f7; }
.dl-icon.apple svg { fill: #16181d; }
.dl-icon.win { background: #eaf1fb; }
.dl-icon.win svg { fill: #3b7ddd; }

.dl-text { display: flex; flex-direction: column; line-height: 1.35; flex: 1; text-align: left; }
.dl-text strong { font-size: 14px; }
.dl-text small { font-size: 11.5px; color: var(--muted); }

.dl-go {
  flex: 0 0 auto;
  padding: 5px 13px;
  border-radius: 999px;
  background: rgba(124, 92, 255, .12);
  color: var(--brand);
  font-size: 12px;
  font-weight: 600;
  transition: background .18s, color .18s;
}
.dl:hover .dl-go { background: var(--brand); color: #fff; }
.dl.is-current .dl-go { background: rgba(124, 92, 255, .18); }

.meta { margin: 12px 0 0; text-align: center; font-size: 12px; color: #9298a6; }
.meta a { text-decoration: none; border-bottom: 1px solid #d9dce6; }

/* ---------- checksums ---------- */

.checksums { max-width: 900px; margin: 10px auto 0; text-align: center; }

.checksums summary {
  display: inline-block;
  cursor: pointer;
  list-style: none;
  font-size: 12px;
  color: #9298a6;
  border-bottom: 1px dashed #d9dce6;
  transition: color .18s;
}
.checksums summary::-webkit-details-marker { display: none; }
.checksums summary:hover { color: var(--ink); }
.checksums[open] summary { color: var(--muted); border-bottom-color: transparent; }

#checksum-list {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  overflow: hidden;
  text-align: left;
}

.cs-row {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.5fr) auto;
  gap: 14px;
  align-items: center;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
}
.cs-row:first-child { border-top: 0; }
.cs-row .name { color: var(--muted); overflow-wrap: anywhere; }
.cs-row code { font: 11.5px/1.5 var(--mono); color: #4a5060; overflow-wrap: anywhere; }

.cs-copy {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px 10px;
  background: #fff;
  color: var(--muted);
  font: inherit;
  font-size: 11.5px;
  cursor: pointer;
  transition: color .18s, border-color .18s;
}
.cs-copy:hover { color: var(--ink); border-color: #cfd3de; }

/* ---------- direction (three futures) ---------- */

.direction-sec { background: var(--soft); padding: 76px 0 84px; border-top: 1px solid var(--line); }
.head { max-width: 620px; }
.kicker { margin: 0 0 14px; font-size: 12px; letter-spacing: .22em; color: var(--brand); font-weight: 650; }
h2 { margin: 0; font-size: clamp(28px, 3.4vw, 42px); line-height: 1.18; letter-spacing: -.03em; }
.sub { margin: 16px 0 0; color: var(--muted); font-size: 15.5px; }

.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 48px; }
.sec-head .sub { max-width: 34em; margin: 0; }

.paths { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; }

.path {
  display: flex;
  flex-direction: column;
  padding: 14px 14px 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}

.path:hover { transform: translateY(-3px); border-color: #dde1ea; box-shadow: 0 24px 44px -32px rgba(16, 24, 64, .32); }

.path-fig { position: relative; margin: 0 0 16px; border-radius: 11px; overflow: hidden; background: #f2f3f7; }
.path-fig img { display: block; width: 100%; aspect-ratio: 8 / 5; object-fit: cover; }

.ph-note {
  position: absolute;
  left: 8px;
  bottom: 8px;
  padding: 1px 7px;
  border-radius: 5px;
  background: rgba(255, 255, 255, .82);
  color: #8e94a2;
  font-size: 10px;
  letter-spacing: .04em;
}

.path h3 { margin: 0 4px 7px; font-size: 17px; letter-spacing: -.01em; }
.path p { flex: 1; margin: 0 4px 18px; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

.like {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0 4px;
  padding: 6px 12px 6px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: #4a5060;
  font: inherit;
  font-size: 12.5px;
  cursor: pointer;
  transition: border-color .18s, background .18s, color .18s;
}

.like:hover { border-color: #cfd3de; }
.like:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.like svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linejoin: round; }
.like-num { font-weight: 650; font-variant-numeric: tabular-nums; }
.like-label { color: #8a90a0; }

.like.is-voted { background: #fff1ef; border-color: #f3cdc7; color: #c23b2b; }
.like.is-voted svg { fill: currentColor; }
.like.is-voted .like-label { color: #c23b2b; }

.like.is-error { color: #a86400; border-color: #f1ddb4; background: #fff8ea; }

/* ---------- about ---------- */

.about-sec { padding: 84px 0; background: #fff; }
.about { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.25fr); gap: 48px; }
.about-head h2 { max-width: none; font-size: clamp(28px, 3.2vw, 40px); }
.about-head .sub { max-width: 30em; font-size: 14.5px; }
.about-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px 34px; align-content: start; }
.about-grid article { border-top: 1px solid var(--line); padding-top: 16px; }
.about-grid h3 { margin: 0 0 8px; font-size: 15px; letter-spacing: .01em; }
.about-grid p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.9; }

code {
  padding: 1px 4px;
  border: 1px solid #e6e8ef;
  border-radius: 4px;
  background: #f4f5f8;
  font-family: var(--mono);
  font-size: 11.5px;
  color: #414757;
}

.inline-link { color: var(--ink); text-decoration: none; border-bottom: 1px solid #d9dce6; }
.inline-link:hover { border-bottom-color: var(--ink); }

/* ---------- docs (Q&A) ---------- */

.doc-layout {
  display: grid;
  grid-template-columns: 224px minmax(0, 1fr);
  gap: 58px;
  align-items: start;
  padding: 46px 0 80px;
}

.doc-side { position: sticky; top: 84px; max-height: calc(100vh - 104px); overflow: auto; }
.side-box { margin: 0; border: 0; }
.side-box > summary { display: none; }
.side-title { margin: 0 0 16px; font-size: 12px; letter-spacing: .18em; color: var(--brand); font-weight: 650; }
.side-group { margin-bottom: 18px; }
.side-cat { display: block; margin: 0 0 4px; color: var(--ink); font-weight: 650; font-size: 13px; text-decoration: none; }
.side-cat:hover, .side-cat.is-active { color: var(--brand); }
.side-link {
  display: block;
  margin-left: -9px;
  padding: 4px 9px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.55;
  text-decoration: none;
  transition: background .15s, color .15s;
}
.side-link:hover { color: var(--ink); background: #f4f5f9; }
.side-link.is-active { color: var(--ink); background: #f0f1f6; font-weight: 600; }

.doc { min-width: 0; max-width: 700px; }
.doc h1 { margin: 0 0 12px; max-width: none; font-size: clamp(28px, 3.2vw, 38px); line-height: 1.2; letter-spacing: -.03em; }
.doc-sub { margin: 0 0 8px; color: var(--muted); font-size: 15px; line-height: 1.8; }

.qa-group { margin-top: 36px; scroll-margin-top: 76px; }
.qa-group h2 { margin: 0; font-size: 17px; letter-spacing: .01em; }
.qa-group .qa { margin-top: 10px; }
.qa details { scroll-margin-top: 76px; }

.qa { border-top: 1px solid var(--line); }
.qa details { border-bottom: 1px solid var(--line); }

.qa summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 2px;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "+"; flex: 0 0 auto; color: #9aa0ad; font-weight: 400; font-size: 18px; line-height: 1; }
.qa details[open] summary::after { content: "–"; }

.qa .a { padding: 0 2px 20px; color: var(--muted); font-size: 14px; line-height: 1.95; }
.qa .a p { margin: 0 0 10px; }
.qa .a p:last-child { margin: 0; }
.qa .a ul { margin: 0 0 10px; padding-left: 20px; }

.doc-note { margin: 30px 0 0; font-size: 12.5px; color: #9298a6; line-height: 1.9; }
.doc-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.doc-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  font-size: 13px;
  text-decoration: none;
  transition: border-color .18s, background .18s;
}
.doc-btn:hover { border-color: #cfd3de; background: var(--soft); }
.doc-btn.primary { background: var(--ink); border-color: var(--ink); color: #fff; }
.doc-btn.primary:hover { background: #23262f; }

/* ---------- install ---------- */

.install-sec { padding: 88px 0; }
.install { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 40px; }
.step { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 26px 26px 30px; }
.step h3 { margin: 0 0 14px; font-size: 18px; }
.step ol { margin: 0; padding-left: 20px; color: var(--muted); font-size: 14.5px; line-height: 1.85; }
.step li { margin-bottom: 8px; }
.fine { margin-top: 22px; font-size: 12.5px; color: #9298a6; }

/* ---------- footer ---------- */

footer { border-top: 1px solid var(--line); background: #fff; padding: 44px 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; align-items: center; }
.fbrand { display: flex; align-items: center; gap: 11px; font-weight: 650; font-size: 15px; }
.fbrand img { border-radius: 8px; }
footer p { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.9; text-align: right; }
footer a { text-decoration: none; border-bottom: 1px solid #d9dce6; }
footer a:hover { border-bottom-color: var(--ink); }

/* ---------- community square ---------- */

.square-page { background: #fff; }
.square-page .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.sq-hero { padding: clamp(28px, 5vh, 56px) 0 clamp(40px, 7vh, 80px); overflow: hidden; }
.wrap-wide { width: min(1320px, calc(100% - 64px)); margin: 0 auto; }

/* wordmark: three inked layers slip into register behind the black type */
.sq-mark { display: flex; flex-direction: column; align-items: center; margin: 0 auto clamp(20px, 4vh, 44px); }
.sq-mark svg { display: block; width: min(760px, calc(100% - 48px)); height: auto; overflow: visible; }
.sq-mark .m {
  font-family: 'Didot', 'Bodoni MT', 'Playfair Display', 'Times New Roman', Georgia, serif;
  font-style: italic;
  font-weight: 700;
  font-size: 210px;
}
.sq-mark .m-a, .sq-mark .m-b, .sq-mark .m-c { fill: none; stroke-width: 1.3; stroke-linejoin: round; }
.sq-mark .m-a { stroke: #5b3fd4; animation: reg-a 1.6s cubic-bezier(.2, .8, .2, 1) .1s both; }
.sq-mark .m-b { stroke: #0b8b78; animation: reg-b 1.6s cubic-bezier(.2, .8, .2, 1) .2s both; }
.sq-mark .m-c { stroke: #d88a14; animation: reg-c 1.6s cubic-bezier(.2, .8, .2, 1) .3s both; }
.sq-mark .m-front { fill: #14110c; animation: ink-in 1.1s ease .05s both; }
.sq-sub {
  margin: 6px 0 0;
  font-size: 11px;
  letter-spacing: .52em;
  text-indent: .52em;
  color: #8e8a82;
}

/* bands */
.sq-bands { display: flex; gap: clamp(12px, 1.6vw, 24px); height: clamp(420px, calc(100vh - 372px), 680px); }

.sq-band {
  --tint: #f5f2ff;
  --ink: #4a2fbd;
  --edge: rgba(74, 47, 189, .22);
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--edge);
  border-radius: 28px;
  background: var(--tint);
  outline: none;
  transition: flex-grow .7s cubic-bezier(.2, .8, .2, 1), border-color .4s;
  animation: band-rise 1s cubic-bezier(.2, .8, .2, 1) both;
}
.band-a { animation-delay: .05s; }
.band-b { --tint: #effaf6; --ink: #0a6b5c; --edge: rgba(10, 107, 92, .22); animation-delay: .15s; }
.band-c { --tint: #fff7e8; --ink: #8f5008; --edge: rgba(143, 80, 8, .24); animation-delay: .25s; }
.sq-bands .sq-band:hover,
.sq-bands .sq-band:focus-visible { flex-grow: 1.55; border-color: var(--ink); }

.band-media { position: absolute; inset: 0; margin: 0; }
.band-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.band-media::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 70% at 50% 0%, rgba(255, 255, 255, .85), transparent 62%),
    repeating-linear-gradient(135deg, transparent 0 22px, rgba(0, 0, 0, .025) 22px 23px);
}
.slot {
  position: absolute;
  left: 50%;
  top: 46%;
  translate: -50% -50%;
  padding: 7px 14px;
  border: 1px dashed var(--edge);
  border-radius: 999px;
  color: var(--ink);
  font-size: 12px;
  letter-spacing: .12em;
  opacity: .7;
  white-space: nowrap;
}

.band-title {
  position: absolute;
  left: clamp(18px, 2vw, 30px);
  top: clamp(20px, 2.6vw, 34px);
  margin: 0;
  font-family: 'Songti SC', 'STSong', 'SimSun', 'Noto Serif SC', serif;
  font-size: clamp(26px, 2.6vw, 38px);
  font-weight: 600;
  letter-spacing: .3em;
  color: var(--ink);
  line-height: 1;
}
.band-title span { writing-mode: vertical-rl; text-orientation: upright; display: block; }

.band-copy {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 56px clamp(18px, 2vw, 30px) clamp(20px, 2.4vw, 30px);
  background: linear-gradient(to top, var(--tint) 38%, transparent);
}
.band-no { margin: 0 0 8px; font-size: 11.5px; letter-spacing: .14em; color: var(--ink); }
.band-copy p:last-child { margin: 0; max-width: 24em; font-size: 14px; line-height: 1.85; color: #4b4a45; }

/* note */
.square-note-sec { padding: 0 0 12vh; }
.sq-note { max-width: 720px; margin: 0 auto; text-align: center; }
.sq-note .kicker { margin: 0 0 10px; }
.sq-note p { margin: 0; color: var(--muted); font-size: 14.5px; line-height: 1.9; }
.square-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 22px; }
.sq-btn {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color .18s, background .18s;
}
.sq-btn:hover { border-color: #cfd3de; background: #fafafc; }
.sq-btn.primary { border-color: transparent; background: #14110c; color: #fff; }
.sq-btn.primary:hover { background: #262a35; }

@keyframes band-rise {
  from { opacity: 0; translate: 0 40px; clip-path: inset(100% 0 0 0 round 28px); }
  to { opacity: 1; translate: 0 0; clip-path: inset(0 0 0 0 round 28px); }
}
@keyframes ink-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes reg-a { from { transform: translate(-34px, -22px); opacity: 0; } to { transform: translate(-3px, -2px); opacity: 1; } }
@keyframes reg-b { from { transform: translate(34px, 20px); opacity: 0; } to { transform: translate(3px, 2px); opacity: 1; } }
@keyframes reg-c { from { transform: translate(0, 36px); opacity: 0; } to { transform: translate(0, 4px); opacity: 1; } }

/* ---------- responsive ---------- */

/* Short laptop screens: keep title, carousel and all downloads above the fold. */
@media (max-height: 860px) and (min-width: 721px) {
  .hero { padding-top: 16px; }
  h1 { font-size: 40px; }
  .lede { margin-top: 8px; font-size: 14px; }
  .carousel { margin-top: 18px; }
  .stage { height: clamp(230px, 38vh, 330px); }
  .carousel-foot { margin-top: 22px; gap: 8px; }
  .download { margin-top: 16px; }
}

@media (max-height: 760px) and (min-width: 721px) {
  .hero { padding-top: 12px; }
  h1 { font-size: 34px; }
  .lede { display: none; }
  .carousel { margin-top: 14px; }
  .stage { height: clamp(210px, 34vh, 290px); }
  .carousel-foot { margin-top: 18px; }
}

@media (max-width: 900px) {
  .arrow.prev { left: 2%; }
  .arrow.next { right: 2%; }
  .download { grid-template-columns: 1fr; max-width: 460px; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .paths { grid-template-columns: 1fr; gap: 14px; }
  .path { max-width: 560px; }
  .about { grid-template-columns: 1fr; gap: 30px; }
  .about-head h2 { max-width: none; }

  .doc-layout { grid-template-columns: 1fr; gap: 20px; padding: 28px 0 64px; }
  .doc-side { position: static; max-height: none; overflow: visible; }
  .side-box { padding: 0 14px; border: 1px solid var(--line); border-radius: 10px; background: #fbfbfd; }
  .side-box > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 0;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
  }
  .side-box > summary::-webkit-details-marker { display: none; }
  .side-box > summary::after { content: "▾"; color: #9aa0ad; }
  .side-box:not([open]) > summary::after { content: "▸"; }
  .side-nav { padding-bottom: 12px; }
  .side-box:not([open]) .side-nav { display: none; }
}

@media (max-width: 720px) {
  .wrap { width: calc(100% - 36px); }
  .top nav { gap: 16px; font-size: 13px; }
  .top nav a { white-space: nowrap; }
  .brand span { white-space: nowrap; }
  .top nav a[data-sm="hide"] { display: none; }
  .hero { padding-top: 20px; }
  .hero-stat { position: static; display: flex; width: max-content; margin: 0 0 14px auto; }
  h1 { font-size: 30px; }
  .lede { font-size: 14px; }
  .stage { height: 220px; }
  .slide { left: 6%; right: 6%; }
  .slide.is-prev { opacity: .4; transform: translate3d(-58%, 0, -140px) scale(.84) rotateY(14deg); }
  .slide.is-next { opacity: .4; transform: translate3d(58%, 0, -140px) scale(.84) rotateY(-14deg); }
  .arrow { display: none; }
  .carousel-foot { gap: 8px; margin-top: 20px; }
  .caption { gap: 8px; }
  .caption .cdesc { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 22px; }
  .install { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 16px; }
  footer p { text-align: left; }
  .cs-row { grid-template-columns: 1fr auto; }
  .cs-row code { grid-column: 1 / -1; }
  .sq-hero { padding: 20px 0 40px; }
  .wrap-wide { width: calc(100% - 36px); }
  .sq-bands { flex-direction: column; height: auto; gap: 14px; }
  .sq-band { flex: none; height: 340px; border-radius: 22px; }
  .sq-bands .sq-band:hover, .sq-bands .sq-band:focus-visible { flex-grow: 0; }
  .square-note-sec { padding-bottom: 8vh; }
}

@media (max-width: 480px) {
  .top nav { gap: 10px; font-size: 12.5px; }
  .top nav a.ghost { padding: 4px 11px; }
  .doc-layout { padding: 24px 0 56px; }
  .qa summary { font-size: 14px; }
}

@media (max-width: 370px) {
  .brand span { display: none; }
}

@media (max-width: 420px) {
  .tags { gap: 4px; }
  .tag-item { padding: 3px 6px; font-size: 10.5px; }
  .tag-item::before { width: 4px; height: 4px; }
  .tag-version { padding-left: 6px; font-size: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .slide { transition: opacity .2s; }
  .dot.is-active::after { animation: none; transform: scaleX(1); }
  .dl, .cards article { transition: none; }
  .sq-band, .sq-mark .m { animation: none !important; }
  .sq-band { transition: none; }
}

@media (max-width: 720px) {
  .sq-sub { padding: 0 18px; font-size: 10px; letter-spacing: .26em; text-indent: .26em; text-align: center; line-height: 1.8; }
  .sq-mark svg { width: calc(100% - 36px); }
}

/* ---------- homepage polish (merged from the /preview draft, 2026-11-10) ---------- */

@property --ang { syntax: '<angle>'; inherits: false; initial-value: 0deg; }

/* carousel: pointer tilt, sheen, accent-tinted shadow */
.slide.is-active .window {
  transform: perspective(1400px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) scale(var(--lift, 1));
  transition: transform .35s cubic-bezier(.2, .8, .2, 1), box-shadow .6s ease;
  will-change: transform;
  box-shadow:
    0 60px 110px -44px color-mix(in srgb, var(--accent, #7c5cff) 34%, rgba(20, 28, 70, .5)),
    0 16px 36px -22px rgba(20, 28, 70, .26);
}

/* Hovering the stage pauses autoplay (see carousel.js) and lifts the active shot for a closer look.
   The growth is centred, so `.carousel-foot` keeps enough room above the caption for the +10%. */
@media (hover: hover) and (pointer: fine) {
  .stage:hover .slide.is-active .window { --lift: 1.1; }
}

/* download cards: edge light that follows the pointer */
.dl::after {
  content: '';
  position: absolute;
  inset: -1px;
  padding: 1px;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  transition: opacity .25s ease;
  background: radial-gradient(170px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--brand) 85%, #fff), transparent 70%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
}

.dl:hover::after { opacity: 1; }

/* recommended card: a slow-turning gradient hairline instead of the static purple edge */
.dl.is-current::before {
  content: '';
  position: absolute;
  inset: -1px;
  padding: 1.5px;
  border-radius: inherit;
  pointer-events: none;
  background: conic-gradient(from var(--ang), #7c5cff, #14a08a, #e0912a, #7c5cff);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  animation: ring-turn 7s linear infinite;
}

@keyframes ring-turn { to { --ang: 360deg; } }

@media (prefers-reduced-motion: reduce) {
  .slide.is-active .window { transform: none; transition: box-shadow .6s ease; }
  .dl.is-current::before { animation: none; }
}

@media (hover: none), (pointer: coarse) {
  .dl::after { display: none; }
}

/* direction section: full-width alternating rows */
.direction-sec { background: #fff; padding: 96px 0 104px; }
.direction-sec h2 { font-size: clamp(30px, 3.8vw, 48px); }

.paths { display: flex; flex-direction: column; gap: 0; margin-top: 48px; }

.path {
  --c: #7c5cff;
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
  padding: 56px 0;
  background: none;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
}
.path:last-child { border-bottom: 1px solid var(--line); }
.path:hover { transform: none; box-shadow: none; border-color: var(--line); }
.path-community { --c: #0f9b85; }
.path-design { --c: #e0612a; }
.path:nth-child(even) .path-body { order: 2; }

.path-no {
  display: block;
  margin-bottom: 18px;
  font-family: 'Didot', 'Bodoni MT', 'Playfair Display', Georgia, serif;
  font-style: italic;
  font-size: clamp(56px, 7vw, 96px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px color-mix(in srgb, var(--c) 70%, #fff);
}

.path h3 { margin: 0 0 12px; font-size: clamp(24px, 2.6vw, 34px); letter-spacing: -.02em; }
.path p { flex: none; margin: 0 0 28px; max-width: 30em; font-size: 15px; line-height: 1.9; }

.like {
  margin: 0;
  padding: 10px 18px 10px 14px;
  border-radius: 999px;
  border-color: color-mix(in srgb, var(--c) 40%, #fff);
  background: color-mix(in srgb, var(--c) 6%, #fff);
  color: var(--c);
  font-size: 14px;
}
.like svg { width: 17px; height: 17px; }
.like-label { color: color-mix(in srgb, var(--c) 70%, #666); }
.like:not(.is-voted):hover { background: var(--c); border-color: var(--c); color: #fff; }
.like:not(.is-voted):hover .like-num,
.like:not(.is-voted):hover .like-label { color: #fff; }

.path-fig {
  margin: 0;
  border-radius: 22px;
  background: color-mix(in srgb, var(--c) 7%, #fff);
  box-shadow: 0 40px 80px -52px color-mix(in srgb, var(--c) 55%, transparent);
}
.path-fig img { transition: transform .8s cubic-bezier(.2, .8, .2, 1); }
.path:hover .path-fig img { transform: scale(1.035); }

@media (max-width: 860px) {
  .path { grid-template-columns: 1fr; gap: 28px; padding: 40px 0; }
  .path:nth-child(even) .path-body { order: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .path-fig img { transition: none; }
  .path:hover .path-fig img { transform: none; }
}