/* ==========================================================================
   FORGE — монохромная тема в духе редакторов UE5 / Unity
   ========================================================================== */

:root {
  --bg: #08080a;
  --bg-1: #0f0f12;
  --bg-2: #16161a;
  --bg-3: #1d1d22;
  --line: #26262c;
  --line-2: #34343c;
  --fg: #f2f2f2;
  --fg-1: #b8b8be;
  --fg-2: #7c7c84;
  --fg-3: #52525a;
  --accent: #ffffff;
  --radius: 2px;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --topbar-h: 56px;
  --status-h: 28px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
body::before {
  /* сетка вьюпорта */
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .22;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 70%);
  z-index: 0;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -.02em; }
p { margin: 0 0 1em; color: var(--fg-1); }
code, kbd, pre, .mono { font-family: var(--mono); }
.dim { color: var(--fg-2); }
.grow { flex: 1; }
::selection { background: #fff; color: #000; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 24px;
  background: rgba(8, 8, 10, .86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .04em; }
.brand-mark {
  width: 18px; height: 18px;
  border: 2px solid var(--fg);
  position: relative;
  transform: rotate(45deg);
}
.brand-mark::after {
  content: ""; position: absolute; inset: 3px; background: var(--fg);
}
.brand-name { font-family: var(--mono); font-size: 14px; }
.brand-name .dim { font-weight: 400; }

.nav { display: flex; gap: 4px; }
.nav a {
  padding: 6px 12px;
  color: var(--fg-2);
  font-weight: 500;
  border: 1px solid transparent;
  transition: color .15s, border-color .15s;
}
.nav a:hover { color: var(--fg); }
.nav a.active { color: var(--fg); border-color: var(--line-2); background: var(--bg-2); }

.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.search {
  display: flex; align-items: center; gap: 8px;
  height: 32px; padding: 0 8px 0 10px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  width: 240px;
}
.search:focus-within { border-color: var(--fg-2); }
.search-icon { color: var(--fg-2); }
.search input {
  flex: 1; min-width: 0;
  background: none; border: 0; outline: 0;
  color: var(--fg); font: inherit; font-size: 13px;
}
kbd {
  font-size: 11px; padding: 1px 6px;
  border: 1px solid var(--line-2); color: var(--fg-2);
}
.search-results {
  position: absolute; top: calc(var(--topbar-h) - 4px); right: 24px;
  width: 420px; max-height: 60vh; overflow: auto;
  background: var(--bg-1); border: 1px solid var(--line-2);
  box-shadow: 0 20px 60px rgba(0,0,0,.6);
}
.search-results a {
  display: block; padding: 10px 14px; border-bottom: 1px solid var(--line);
}
.search-results a:hover, .search-results a:focus { background: var(--bg-3); outline: 0; }
.search-results .sr-type { font: 11px var(--mono); color: var(--fg-2); text-transform: uppercase; }
.search-results .sr-empty { padding: 14px; color: var(--fg-2); }
.lang { display: flex; border: 1px solid var(--line-2); height: 32px; }
.lang button {
  background: transparent; color: var(--fg-2); border: 0; border-right: 1px solid var(--line-2);
  font: 600 11px var(--mono); padding: 0 9px; cursor: pointer; min-width: 34px;
}
.lang button:last-child { border-right: 0; }
.lang button:hover { color: var(--fg); }
.lang button.on { background: var(--fg); color: #000; }
.burger { display: none; background: none; border: 1px solid var(--line-2); color: var(--fg); width: 36px; height: 32px; cursor: pointer; }

/* ---------- Buttons / chips ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 18px;
  font: 600 13px var(--sans); letter-spacing: .01em;
  border: 1px solid var(--line-2); background: var(--bg-2); color: var(--fg);
  cursor: pointer; transition: background .15s, border-color .15s, color .15s;
  white-space: nowrap;
}
.btn:hover { border-color: var(--fg-2); background: var(--bg-3); }
.btn-solid { background: var(--fg); color: #000; border-color: var(--fg); }
.btn-solid:hover { background: #d8d8d8; border-color: #d8d8d8; }
.btn-ghost { background: transparent; }
.btn-sm { height: 32px; padding: 0 12px; font-size: 12px; }
.btn .arrow { font-family: var(--mono); }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 22px; padding: 0 8px;
  font: 600 10.5px var(--mono); letter-spacing: .08em; text-transform: uppercase;
  border: 1px solid var(--line-2); color: var(--fg-1);
}
.chip.solid { background: var(--fg); color: #000; border-color: var(--fg); }
.chip-row { display: flex; flex-wrap: wrap; gap: 6px; }

.eyebrow {
  font: 600 11px var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--fg-2);
  display: flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 18px; height: 1px; background: var(--fg-2); }

/* ---------- Layout ---------- */
main { flex: 1; position: relative; z-index: 1; outline: 0; }
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; border-bottom: 1px solid var(--line); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 32px; }
.section-head h2 { font-size: 32px; margin-top: 10px; }
.page-head { padding: 56px 0 32px; border-bottom: 1px solid var(--line); }
.page-head h1 { font-size: 44px; margin-top: 12px; }
.page-head p { max-width: 640px; margin-top: 12px; font-size: 16px; }

/* corner brackets — как рамка выделения во вьюпорте */
.brackets { position: relative; }
.brackets::before, .brackets::after {
  content: ""; position: absolute; width: 10px; height: 10px; pointer-events: none;
  border-color: var(--fg-3); border-style: solid; transition: border-color .15s;
}
.brackets::before { top: -1px; left: -1px; border-width: 1px 0 0 1px; }
.brackets::after { bottom: -1px; right: -1px; border-width: 0 1px 1px 0; }
.brackets:hover::before, .brackets:hover::after { border-color: var(--fg); }

/* ---------- Hero ---------- */
.hero { padding: 96px 0 72px; border-bottom: 1px solid var(--line); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(40px, 6vw, 76px); font-weight: 800; letter-spacing: -.045em; margin: 18px 0 20px; }
.hero h1 .outline { color: transparent; -webkit-text-stroke: 1px var(--fg); }
.hero p { font-size: 17px; max-width: 520px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero-stats { display: flex; gap: 0; margin-top: 44px; border: 1px solid var(--line); width: fit-content; }
.hero-stats div { padding: 12px 22px; border-right: 1px solid var(--line); }
.hero-stats div:last-child { border-right: 0; }
.hero-stats b { display: block; font: 700 22px var(--mono); }
.hero-stats span { font-size: 12px; color: var(--fg-2); }

.viewport {
  border: 1px solid var(--line-2); background: var(--bg-1);
  box-shadow: 0 40px 120px rgba(0,0,0,.7);
}
.viewport-bar {
  display: flex; align-items: center; gap: 8px; height: 30px; padding: 0 10px;
  border-bottom: 1px solid var(--line); font: 11px var(--mono); color: var(--fg-2);
}
.viewport-bar .tab { padding: 3px 8px; background: var(--bg-3); color: var(--fg); }
.viewport-bar .grow { flex: 1; }
.viewport-canvas { aspect-ratio: 4/3; position: relative; }
.viewport-canvas svg { width: 100%; height: 100%; }
.viewport-foot {
  display: flex; justify-content: space-between; padding: 6px 10px;
  border-top: 1px solid var(--line); font: 11px var(--mono); color: var(--fg-2);
}

/* ---------- Engine strip ---------- */
.engines { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--line); }
.engine-cell {
  padding: 28px 24px; border-right: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  transition: background .15s;
}
.engine-cell:last-child { border-right: 0; }
.engine-cell:hover { background: var(--bg-1); }
.engine-cell.on { background: var(--bg-1); box-shadow: inset 0 -2px 0 var(--fg); }
.engine-cell b { font: 700 20px var(--mono); letter-spacing: .02em; }
.engine-cell span { color: var(--fg-2); font-size: 13px; }

/* ---------- Product cards ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 24px; }
.filter-bar button {
  height: 32px; padding: 0 14px; font: 600 12px var(--mono); letter-spacing: .06em;
  background: transparent; color: var(--fg-2); border: 1px solid var(--line-2); cursor: pointer;
}
.filter-bar button:hover { color: var(--fg); }
.filter-bar button.on { background: var(--fg); color: #000; border-color: var(--fg); }

.grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.card {
  display: flex; flex-direction: column;
  background: var(--bg-1); border: 1px solid var(--line);
  transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--line-2); transform: translateY(-2px); }
.card-thumb { aspect-ratio: 16/9; border-bottom: 1px solid var(--line); overflow: hidden; }
.card-thumb svg { width: 100%; height: 100%; }
.card-body { padding: 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-body h3 { font-size: 18px; }
.card-body p { font-size: 13px; margin: 0; }
.card-foot {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px; border-top: 1px solid var(--line); font: 12px var(--mono); color: var(--fg-2);
}
.card-foot b { color: var(--fg); font-size: 14px; }

/* ---------- Feature list ---------- */
.features { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.feature { padding: 26px; border-right: 1px solid var(--line); }
.feature:last-child { border-right: 0; }
.feature .num { font: 11px var(--mono); color: var(--fg-3); }
.feature h4 { font-size: 16px; margin: 14px 0 8px; }
.feature p { font-size: 13px; margin: 0; }

/* ---------- CTA band ---------- */
.cta {
  display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line-2);
  background: var(--bg-1);
}
.cta > a { padding: 36px; display: flex; flex-direction: column; gap: 10px; transition: background .15s; }
.cta > a + a { border-left: 1px solid var(--line-2); }
.cta > a:hover { background: var(--bg-2); }
.cta h3 { font-size: 24px; }
.cta p { margin: 0; }
.cta .go { margin-top: 12px; font: 600 12px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.cta > a.invert { background: var(--fg); color: #000; }
.cta > a.invert p { color: #333; }
.cta > a.invert:hover { background: #e2e2e2; }

/* ---------- Product page (3-колоночный «редактор») ---------- */
.editor {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 300px;
  min-height: calc(100vh - var(--topbar-h) - var(--status-h));
  border-bottom: 1px solid var(--line);
}
.panel { background: var(--bg-1); }
.panel-left { border-right: 1px solid var(--line); }
.panel-right { border-left: 1px solid var(--line); }
.panel-sticky { position: sticky; top: var(--topbar-h); max-height: calc(100vh - var(--topbar-h)); overflow: auto; }
.panel-title {
  display: flex; align-items: center; justify-content: space-between;
  height: 34px; padding: 0 14px; border-bottom: 1px solid var(--line);
  font: 600 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--fg-2);
  background: var(--bg-2);
}
.tree { padding: 8px 0 16px; }
.tree-group { font: 600 11px var(--mono); color: var(--fg-3); text-transform: uppercase; letter-spacing: .1em; padding: 14px 14px 6px; }
.tree a {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 14px 5px 22px; font-size: 13px; color: var(--fg-1);
  border-left: 2px solid transparent;
}
.tree a::before { content: "▸"; font-size: 9px; color: var(--fg-3); }
.tree a:hover { color: var(--fg); background: var(--bg-2); }
.tree a.active { color: var(--fg); background: var(--bg-3); border-left-color: var(--fg); }
.tree a.active::before { color: var(--fg); }

.content { padding: 0 40px 64px; min-width: 0; }
.crumbs { font: 12px var(--mono); color: var(--fg-2); padding: 18px 0; display: flex; gap: 8px; flex-wrap: wrap; }
.crumbs a:hover { color: var(--fg); }
.product-head { padding: 12px 0 0; }
.product-head h1 { font-size: 38px; margin: 12px 0 10px; }
.product-head p { font-size: 16px; max-width: 720px; }

.tabs {
  display: flex; gap: 0; margin: 26px 0 32px; border-bottom: 1px solid var(--line);
  overflow-x: auto; scrollbar-width: none;
}
.tabs a {
  padding: 10px 16px; font-weight: 600; font-size: 13px; color: var(--fg-2);
  border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap;
}
.tabs a:hover { color: var(--fg); }
.tabs a.active { color: var(--fg); border-bottom-color: var(--fg); }
.tabs a .count { font: 10px var(--mono); color: var(--fg-3); margin-left: 4px; }

/* details panel (как Details в UE5 / Inspector в Unity) */
.props { padding: 6px 0; }
.prop-group { border-bottom: 1px solid var(--line); }
.prop-group summary {
  list-style: none; cursor: pointer; padding: 9px 14px;
  font: 600 12px var(--sans); background: var(--bg-2); display: flex; gap: 8px; align-items: center;
}
.prop-group summary::before { content: "▾"; font-size: 10px; color: var(--fg-2); }
.prop-group:not([open]) summary::before { content: "▸"; }
.prop-group summary::-webkit-details-marker { display: none; }
.prop { display: grid; grid-template-columns: 110px 1fr; gap: 8px; padding: 7px 14px; font-size: 12.5px; border-top: 1px solid var(--line); }
.prop dt { color: var(--fg-2); }
.prop dd { margin: 0; font-family: var(--mono); font-size: 12px; }
.price-box { padding: 18px 14px; display: flex; flex-direction: column; gap: 10px; border-bottom: 1px solid var(--line); }
.price-box .price { font: 700 30px var(--mono); }
.price-box .price small { font-size: 13px; color: var(--fg-2); font-weight: 400; }
.price-box .btn { width: 100%; }

/* ---------- Docs typography ---------- */
.doc { max-width: 780px; }
.doc h2 { font-size: 26px; margin: 44px 0 14px; padding-top: 8px; scroll-margin-top: 80px; }
.doc h2:first-child { margin-top: 0; }
.doc h3 { font-size: 18px; margin: 28px 0 10px; }
.doc p, .doc li { color: var(--fg-1); font-size: 15px; line-height: 1.7; }
.doc ul, .doc ol { padding-left: 22px; margin: 0 0 1em; }
.doc li { margin-bottom: 4px; }
.doc code:not(pre code) {
  font-size: 12.5px; padding: 1px 6px; background: var(--bg-3); border: 1px solid var(--line); color: var(--fg);
}
.doc strong { color: var(--fg); }
.callout {
  border: 1px solid var(--line-2); border-left: 3px solid var(--fg);
  background: var(--bg-1); padding: 14px 18px; margin: 20px 0;
}
.callout p:last-child { margin: 0; }
.callout .callout-title { font: 700 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; margin-bottom: 6px; }

.code { border: 1px solid var(--line); background: #050506; margin: 16px 0 22px; }
.code-head {
  display: flex; justify-content: space-between; align-items: center;
  height: 32px; padding: 0 6px 0 12px; border-bottom: 1px solid var(--line);
  font: 11px var(--mono); color: var(--fg-2); background: var(--bg-1);
}
.code-head button {
  background: none; border: 1px solid transparent; color: var(--fg-2); font: 11px var(--mono);
  padding: 3px 8px; cursor: pointer;
}
.code-head button:hover { color: var(--fg); border-color: var(--line-2); }
.code pre { margin: 0; padding: 16px; overflow-x: auto; font-size: 12.5px; line-height: 1.65; color: #d6d6d6; }
.code .k { color: #fff; font-weight: 700; }
.code .s { color: #9a9aa2; }
.code .c { color: #5a5a62; font-style: italic; }
.code .n { color: #e6e6e6; text-decoration: underline; text-decoration-color: #444; text-underline-offset: 3px; }

.engine-switch { display: inline-flex; border: 1px solid var(--line-2); margin-bottom: 8px; }
.engine-switch button {
  background: transparent; color: var(--fg-2); border: 0; border-right: 1px solid var(--line-2);
  font: 600 11px var(--mono); letter-spacing: .08em; padding: 7px 12px; cursor: pointer;
}
.engine-switch button:last-child { border-right: 0; }
.engine-switch button.on { background: var(--fg); color: #000; }

/* ---------- Guides list ---------- */
.guide-list { display: flex; flex-direction: column; border: 1px solid var(--line); }
.guide-row {
  display: grid; grid-template-columns: 56px 1fr auto; gap: 18px; align-items: center;
  padding: 18px 20px; border-bottom: 1px solid var(--line); background: var(--bg-1);
  transition: background .15s;
}
.guide-row:last-child { border-bottom: 0; }
.guide-row:hover { background: var(--bg-2); }
.guide-row .idx { font: 700 22px var(--mono); color: var(--fg-3); }
.guide-row h4 { font-size: 16px; margin-bottom: 4px; }
.guide-row p { margin: 0; font-size: 13px; }
.guide-meta { display: flex; gap: 8px; align-items: center; font: 12px var(--mono); color: var(--fg-2); }

.steps { counter-reset: step; list-style: none; padding: 0 !important; }
.steps > li {
  counter-increment: step; position: relative; padding: 0 0 8px 52px; margin-bottom: 18px !important;
}
.steps > li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 0; width: 36px; height: 28px;
  display: grid; place-items: center;
  font: 700 12px var(--mono); border: 1px solid var(--fg); color: var(--fg);
}
.steps > li::after {
  content: ""; position: absolute; left: 18px; top: 34px; bottom: -14px; width: 1px; background: var(--line-2);
}
.steps > li:last-child::after { display: none; }
.steps h3 { margin: 2px 0 8px !important; font-size: 17px !important; }

/* ---------- Changelog ---------- */
.timeline { position: relative; border-left: 1px solid var(--line-2); margin-left: 6px; }
.release { position: relative; padding: 0 0 40px 32px; }
.release::before {
  content: ""; position: absolute; left: -6px; top: 6px; width: 11px; height: 11px;
  background: var(--bg); border: 2px solid var(--fg);
}
.release.latest::before { background: var(--fg); }
.release-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 12px; }
.release-head h3 { font: 700 20px var(--mono); }
.release-head .date { font: 12px var(--mono); color: var(--fg-2); }
.release-head .prod { font-weight: 600; color: var(--fg-1); }
.changes { list-style: none; padding: 0; margin: 0; border: 1px solid var(--line); background: var(--bg-1); }
.changes li { display: grid; grid-template-columns: 88px 1fr; gap: 12px; padding: 9px 14px; border-bottom: 1px solid var(--line); font-size: 13.5px; color: var(--fg-1); }
.changes li:last-child { border-bottom: 0; }
.tag { font: 700 10px var(--mono); letter-spacing: .1em; padding: 2px 0; text-align: center; height: fit-content; border: 1px solid var(--line-2); }
.tag.added { background: var(--fg); color: #000; border-color: var(--fg); }
.tag.fixed { color: var(--fg); border-color: var(--fg-2); }
.tag.changed { color: var(--fg-2); border-style: dashed; }
.tag.breaking { color: var(--fg); border: 1px solid var(--fg); background: repeating-linear-gradient(45deg, transparent 0 4px, #333 4px 6px); }

/* ---------- Screenshots ---------- */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.shot { border: 1px solid var(--line); background: var(--bg-1); cursor: zoom-in; padding: 0; color: inherit; text-align: left; }
.shot:hover { border-color: var(--fg-2); }
.shot .shot-img { aspect-ratio: 16/10; overflow: hidden; border-bottom: 1px solid var(--line); }
.shot .shot-img svg { width: 100%; height: 100%; }
.shot .shot-cap { padding: 8px 12px; font: 12px var(--mono); color: var(--fg-2); display: flex; justify-content: space-between; }
.video-slot {
  aspect-ratio: 16/9; border: 1px solid var(--line-2); background: var(--bg-1);
  display: grid; place-items: center; margin-bottom: 20px; position: relative; overflow: hidden;
}
.video-slot .play {
  width: 72px; height: 72px; border: 2px solid var(--fg); display: grid; place-items: center;
  font-size: 22px; transition: background .15s, color .15s; cursor: pointer; background: rgba(0,0,0,.5);
}
.video-slot:hover .play { background: var(--fg); color: #000; }
.video-slot svg { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .5; }
.video-slot .play { position: relative; }

.lightbox {
  position: fixed; inset: 0; z-index: 100; background: rgba(0,0,0,.92);
  display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px;
}
.lightbox[hidden] { display: none; }
.lightbox-body { width: min(1100px, 100%); aspect-ratio: 16/10; border: 1px solid var(--line-2); }
.lightbox-body svg { width: 100%; height: 100%; }
.lightbox-caption { margin-top: 14px; color: var(--fg-1); font-size: 13px; }
.lightbox-close { position: absolute; top: 18px; right: 22px; background: none; border: 1px solid var(--line-2); color: var(--fg); width: 40px; height: 40px; cursor: pointer; font-size: 16px; }

/* ---------- Downloads ---------- */
.dl-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); background: var(--bg-1); }
.dl-table th, .dl-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); font-size: 13px; }
.dl-table th { font: 600 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--fg-2); background: var(--bg-2); }
.dl-table td.mono { font-size: 12px; color: var(--fg-1); }
.dl-table tr:hover td { background: var(--bg-2); }
.dl-name { display: flex; align-items: center; gap: 12px; }
.dl-icon { width: 34px; height: 34px; border: 1px solid var(--line-2); display: grid; place-items: center; font: 700 10px var(--mono); }
.req { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0; border: 1px solid var(--line); margin-top: 18px; }
.req div { padding: 14px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: -0 -1px -1px 0; }
.req dt { font: 11px var(--mono); color: var(--fg-2); text-transform: uppercase; letter-spacing: .08em; }
.req dd { margin: 4px 0 0; font-size: 13px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 32px; padding: 40px 0 72px; }
.mode-switch { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line-2); margin-bottom: 24px; }
.mode-switch button {
  background: var(--bg-1); color: var(--fg-2); border: 0; padding: 18px; text-align: left; cursor: pointer;
  display: flex; flex-direction: column; gap: 4px; font: inherit;
}
.mode-switch button + button { border-left: 1px solid var(--line-2); }
.mode-switch button b { font-size: 16px; color: var(--fg-1); }
.mode-switch button span { font-size: 12.5px; }
.mode-switch button.on { background: var(--fg); color: #333; }
.mode-switch button.on b { color: #000; }

.form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font: 600 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--fg-2); }
.field label .req-mark { color: var(--fg); }
.field input, .field select, .field textarea {
  background: var(--bg-1); color: var(--fg); border: 1px solid var(--line-2);
  font: 14px var(--sans); padding: 10px 12px; outline: 0; border-radius: 0; width: 100%;
}
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--fg-2) 50%), linear-gradient(135deg, var(--fg-2) 50%, transparent 50%); background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 30px; }
.field textarea { min-height: 140px; resize: vertical; line-height: 1.55; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--fg); }
.field .hint { font-size: 12px; color: var(--fg-3); }
.check-row { display: flex; flex-wrap: wrap; gap: 6px; }
.check-row label {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  border: 1px solid var(--line-2); padding: 6px 10px; font: 12.5px var(--sans); text-transform: none; letter-spacing: 0; color: var(--fg-1);
}
.check-row input { accent-color: #fff; margin: 0; width: auto; }
.check-row label:has(input:checked) { border-color: var(--fg); color: var(--fg); background: var(--bg-3); }
.form-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }

.letter { border: 1px solid var(--line-2); background: var(--bg-1); position: sticky; top: calc(var(--topbar-h) + 20px); }
.letter-head { padding: 14px 16px; border-bottom: 1px solid var(--line); font: 12px var(--mono); color: var(--fg-2); display: grid; gap: 4px; }
.letter-head b { color: var(--fg); font-weight: 500; }
.letter-body { padding: 18px 16px; white-space: pre-wrap; font: 13px/1.7 var(--mono); color: var(--fg-1); max-height: 520px; overflow: auto; }
.letter-foot { padding: 12px 16px; border-top: 1px solid var(--line); font-size: 12px; color: var(--fg-3); }

.toast {
  position: fixed; bottom: calc(var(--status-h) + 16px); left: 50%; transform: translateX(-50%);
  background: var(--fg); color: #000; padding: 10px 16px; font: 600 13px var(--sans); z-index: 200;
}

/* ---------- Status bar ---------- */
.statusbar {
  position: relative; z-index: 2;
  height: var(--status-h); display: flex; align-items: center; gap: 10px; padding: 0 16px;
  border-top: 1px solid var(--line); background: var(--bg-1);
  font: 11px var(--mono); color: var(--fg-2);
}
.status-dot { width: 7px; height: 7px; background: var(--fg); }
.statusbar .sep { color: var(--fg-3); }

/* ---------- Responsive ---------- */
/* ---------- Real images, "coming soon", rich docs ---------- */
.card-thumb { position: relative; }
.card-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.badge-soon {
  position: absolute; top: 12px; left: 12px; padding: 4px 9px;
  font: 700 10.5px var(--mono); letter-spacing: .14em; text-transform: uppercase;
  background: var(--fg); color: #000;
}
.price-box .price.soon { font-size: 22px; letter-spacing: .04em; text-transform: uppercase; }
.price-box .soon-text { font-size: 13px; line-height: 1.55; margin: 0; color: var(--fg-2); }

.fig-btn { display: block; padding: 0; border: 0; background: none; cursor: zoom-in; width: 100%; color: inherit; }
.fig-btn img { display: block; width: 100%; height: auto; }
.cover { position: relative; border: 1px solid var(--line-2); margin-bottom: 20px; aspect-ratio: 16/9; overflow: hidden; }
.cover img { width: 100%; height: 100%; object-fit: cover; }
.cover .badge-soon { top: 16px; left: 16px; font-size: 12px; padding: 6px 12px; }
.strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 18px 0 8px; }
.strip .fig-btn { aspect-ratio: 16/9; overflow: hidden; border: 1px solid var(--line); }
.strip .fig-btn img { height: 100%; object-fit: cover; transition: transform .25s; }
.strip .fig-btn:hover img { transform: scale(1.04); }
.more { font: 12px var(--mono); color: var(--fg-2); }
.more:hover { color: var(--fg); }
.shot .shot-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.lightbox-body.img { aspect-ratio: auto; border: 0; display: flex; justify-content: center; }
.lightbox-body.img img { max-width: 100%; max-height: calc(100vh - 140px); border: 1px solid var(--line-2); }

.doc-rich { max-width: 860px; }
.doc-fig { margin: 18px 0 24px; }
.doc-fig .fig-btn { border: 1px solid var(--line); }
.doc-fig figcaption { font: 12px var(--mono); color: var(--fg-2); margin-top: 8px; }
.table-wrap { overflow-x: auto; margin: 14px 0 22px; }
.doc-table th, .doc-table td { vertical-align: top; line-height: 1.55; }
.doc-table td { color: var(--fg-1); }
.doc-table td.mono { color: var(--fg); overflow-wrap: anywhere; }
.doc-table td.mono:first-child { overflow-wrap: normal; }
.doc-table.fields td:nth-child(2) { color: var(--fg-2); }
.doc-table code { font-size: 12px; padding: 0 4px; background: var(--bg-3); border: 1px solid var(--line); color: var(--fg); }
.api-table td.mono { white-space: normal; min-width: 220px; max-width: 340px; word-break: break-word; }
.fields-title { font: 600 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--fg-2); margin: 22px 0 -6px; }
.callout.tip { border-left-color: #9be37a; }
.callout.warn { border-left-color: #ffb547; }
.callout.tip .callout-title { color: #9be37a; }
.callout.warn .callout-title { color: #ffb547; }
.doc-rich h3[id] { scroll-margin-top: 80px; }
.api-h { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 40px !important; padding-top: 18px; border-top: 1px solid var(--line); }
.api-h code { font-size: 17px !important; }
.api-index { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 6px; margin: 16px 0 8px; }
.api-index a { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; border: 1px solid var(--line); background: var(--bg-1); }
.api-index a:hover { border-color: var(--fg-2); }
.api-index a span { font: 11px var(--mono); color: var(--fg-2); }
.tree a.sub { padding-left: 34px; font: 12px var(--mono); color: var(--fg-2); }
.tree a.sub::before { content: "·"; }
.doc-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 48px; max-width: 860px; }
.doc-nav a { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border: 1px solid var(--line); background: var(--bg-1); }
.doc-nav a:hover { border-color: var(--fg-2); }
.doc-nav a.next { text-align: right; }
.doc-nav span { font: 11px var(--mono); color: var(--fg-2); text-transform: uppercase; letter-spacing: .1em; }
.doc-nav b { font-size: 14px; }
.steps .doc-fig { margin-top: 14px; }
@media (max-width: 860px) {
  .strip { grid-template-columns: repeat(2, 1fr); }
  .doc-nav { grid-template-columns: 1fr; }
}

@media (max-width: 1280px) {
  /* шапка с 4 языками не помещается — меню уходит в бургер */
  .topbar { gap: 16px; }
  .nav {
    display: none; position: absolute; top: var(--topbar-h); left: 0; right: 0;
    flex-direction: column; background: var(--bg-1); border-bottom: 1px solid var(--line); padding: 8px;
  }
  .nav.open { display: flex; }
  .burger { display: block; }
}
@media (max-width: 1100px) {
  .editor { grid-template-columns: 220px minmax(0, 1fr); }
  .panel-right { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--line); }
  .panel-right .panel-sticky { position: static; max-height: none; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .feature:nth-child(2) { border-right: 0; }
  .feature:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 860px) {
  .topbar { gap: 12px; padding: 0 16px; }
  .search { width: 160px; }
  .search kbd { display: none; }
  .topbar-right .btn-solid { display: none; }
  .search-results { left: 16px; right: 16px; width: auto; }
  .wrap { padding: 0 16px; }
  .hero { padding: 56px 0 48px; }
  .hero-grid, .contact-grid, .cta { grid-template-columns: 1fr; }
  .cta > a + a { border-left: 0; border-top: 1px solid var(--line-2); }
  .engines { grid-template-columns: 1fr; }
  .engine-cell { border-right: 0; border-bottom: 1px solid var(--line); }
  .editor { grid-template-columns: 1fr; }
  .panel-left { border-right: 0; border-bottom: 1px solid var(--line); }
  .panel-left .panel-sticky { position: static; max-height: 240px; }
  .content { padding: 0 16px 48px; }
  .product-head h1, .page-head h1 { font-size: 32px; }
  .form { grid-template-columns: 1fr; }
  .letter { position: static; }
  .guide-row { grid-template-columns: 1fr; gap: 8px; }
  .guide-row .idx { display: none; }
  .changes li { grid-template-columns: 1fr; gap: 4px; }
  .tag { width: fit-content; padding: 2px 8px; }
  .dl-table .hide-sm { display: none; }
  .statusbar > span:nth-child(4), .statusbar .sep { display: none; }
}
@media (max-width: 520px) {
  .features { grid-template-columns: 1fr; }
  .feature { border-right: 0 !important; border-bottom: 1px solid var(--line); }
  .hero-stats { width: 100%; }
  .hero-stats div { flex: 1; padding: 10px 12px; }
  .search { display: none; }
  .lang button { padding: 0 6px; min-width: 28px; }
  .brand-name .dim { display: none; }
}

/* ==========================================================================
   Поиск, теги, пустой движок
   ========================================================================== */
.search-results .sr-all {
  display: block; width: 100%; text-align: left; padding: 10px 14px; cursor: pointer;
  background: var(--bg-2); color: var(--fg-1); border: 0; border-top: 1px solid var(--line);
  font: 12px var(--mono);
}
.search-results .sr-all:hover { background: var(--bg-3); color: var(--fg); }

.tag-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 0 0 28px; }
.doc-rich .tag-row { margin: 40px 0 0; padding-top: 16px; border-top: 1px solid var(--line); }
.tag-label { font: 11px var(--mono); color: var(--fg-3); text-transform: uppercase; letter-spacing: .08em; margin-right: 4px; }
.tag-chip { cursor: pointer; background: transparent; font-family: var(--mono); text-transform: none; letter-spacing: 0; }
.tag-chip:hover { color: var(--fg); border-color: var(--fg-2); }

.empty-engine { border: 1px dashed var(--line-2); padding: 40px 32px; max-width: 720px; }
.empty-engine h3 { font-size: 22px; margin-bottom: 10px; }

.engine-switch.top { margin: 0; }
.engine-switch.top button { padding: 6px 10px; }
.engine-switch.top button:only-child { cursor: default; }

/* ==========================================================================
   Отдельный сайт продукта (cubesandbox.<домен>): акцент продукта поверх общего стиля
   ========================================================================== */
:root[data-product] {
  --p-accent: #ffffff;
  --p-accent-ink: #000000;
  --p-accent-dim: var(--bg-3);
}
[data-product] ::selection { background: var(--p-accent); color: var(--p-accent-ink); }
[data-product] .brand-mark { border-color: var(--p-accent); }
[data-product] .brand-mark::after { background: var(--p-accent); }
[data-product] .nav a.active { color: var(--fg); border-color: var(--p-accent-dim); background: var(--p-accent-dim); box-shadow: inset 0 -2px 0 var(--p-accent); }
[data-product] .tabs a.active { border-bottom-color: var(--p-accent); }
[data-product] .tree a.active { border-left-color: var(--p-accent); }
[data-product] .tree a.active::before { color: var(--p-accent); }
[data-product] .btn-solid { background: var(--p-accent); border-color: var(--p-accent); color: var(--p-accent-ink); }
[data-product] .btn-solid:hover { filter: brightness(1.1); background: var(--p-accent); border-color: var(--p-accent); }
[data-product] .chip.solid, [data-product] .engine-switch button.on { background: var(--p-accent); border-color: var(--p-accent); color: var(--p-accent-ink); }
[data-product] .eyebrow::before { background: var(--p-accent); }
[data-product] .doc-rich a:not(.btn), [data-product] .more { color: var(--p-accent); }
[data-product] .tag-chip:hover { border-color: var(--p-accent); color: var(--p-accent); }
[data-product] .status-dot { background: var(--p-accent); box-shadow: 0 0 8px var(--p-accent); }

/* Cube Sandbox: пиксельный кубик вместо ромба и пиксельная сетка 16 px у шапки страницы */
[data-product="cube-sandbox"] .brand-mark {
  transform: none; border: 0; width: 18px; height: 18px;
  background:
    linear-gradient(var(--p-accent) 0 0) 0 0 / 100% 33% no-repeat,
    linear-gradient(#6b4a2b 0 0) 0 100% / 100% 67% no-repeat;
  image-rendering: pixelated;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .35);
}
[data-product="cube-sandbox"] .brand-mark::after {
  inset: 6px 3px 3px 9px; background: rgba(0, 0, 0, .18);
}
[data-product="cube-sandbox"] body::before {
  background-image:
    linear-gradient(var(--p-accent-dim) 1px, transparent 1px),
    linear-gradient(90deg, var(--p-accent-dim) 1px, transparent 1px);
  background-size: 16px 16px;
  opacity: .35;
}
[data-product="cube-sandbox"] .product-head h1 { font-family: var(--mono); letter-spacing: -.01em; }

@media (max-width: 900px) {
  .engine-switch.top { display: none; }
}