:root {
  --bg: #ffffff;
  --bg-panel: #f3f3f3;
  --bg-panel-2: #131514;
  --border: #e2e2e2;
  --accent: #c3ec52;
  --accent-hover: #b5df3f;
  --accent-dark: #567d14;
  --text: #16181a;
  --text-muted: #5d6166;
  --success: #2f8f4e;
  --warn: #b7791f;
  --error: #c8372d;
  --bar: #0e100f;
  --axis: #d4d4d4;
  --on-dark: #ffffff;
  --on-dark-soft: #d6d9d6;
  --on-dark-muted: #a1a6a2;
  --line-on-dark: rgba(255, 255, 255, 0.13);
  --line-on-dark-strong: rgba(255, 255, 255, 0.55);
  --ghost-hover: rgba(255, 255, 255, 0.07);
  --cell: #1b1e1c;
  --cell-line: #292d2a;
  --bezel: #090a0a;
  --titanium: #8b908c;
  --lens: #2c302e;
  --highlight: rgba(255, 255, 255, 0.11);
  --screen-top: #1d211c;
  --screen-base: #141714;
  --lime-glow: rgba(195, 236, 82, 0.22);
  --lime-glow-soft: rgba(195, 236, 82, 0.05);
  --arc: #c3ec52;
  --chip-q: #eceeed;
  --clear: transparent;
  --veil: rgba(0, 0, 0, 0.4);
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.10), 0 10px 24px -10px rgba(0, 0, 0, 0.45), 0 26px 48px -22px rgba(0, 0, 0, 0.55);
  --shadow-device: 0 56px 90px -34px rgba(0, 0, 0, 0.75), 0 18px 36px -18px rgba(0, 0, 0, 0.6);
  --shadow-cell: 0 12px 26px -18px rgba(0, 0, 0, 0.7);
  --shadow-soft: 0 2px 4px rgba(0, 0, 0, 0.03), 0 16px 32px -16px rgba(0, 0, 0, 0.16);
  --r-section: 40px;
  --r-hero: 32px;
  --r-hero-sm: 24px;
  --r-card: 18px;
  --r-cell: 16px;
  --r-small: 10px;
  --r-screen: 14px;
  --r-device: 30px;
  --r-device-sm: 22px;
  --r-pill: 999px;
  --r-circle: 50%;
  --font-display: "Inter", "Noto Sans SC", "Noto Sans JP", "Noto Sans KR", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Noto Sans SC", "Noto Sans JP", "Noto Sans KR", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --weight-body: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --gutter: 24px;
  --content-width: 1160px;
  --reading-width: 800px;
  --header-width: 1280px;
  --header-height: 68px;
  --section-space: 88px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --speed: .2s;
  --z-fab: 20;
  --z-veil: 40;
  --z-header: 50;
}
*,
*::before,
*::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
html.nav-open { overflow: hidden; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: var(--weight-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
[hidden] { display: none !important; }
a { color: inherit; text-underline-offset: .22em; }
a:hover { text-decoration-thickness: 2px; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button, a { -webkit-tap-highlight-color: var(--clear); }
button { color: inherit; }
img { max-width: 100%; }
svg { flex-shrink: 0; vertical-align: middle; }
:focus-visible { outline: 2px solid var(--accent-dark); outline-offset: 3px; }
.hero :focus-visible, .notice :focus-visible { outline-color: var(--accent); }
::selection { background: var(--accent); color: var(--text); }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  line-height: 1.25;
  text-wrap: balance;
  overflow-wrap: break-word;
}
h1 { font-size: clamp(34px, 3.2vw, 48px); letter-spacing: -.02em; }
h2 { font-size: clamp(26px, 2.8vw, 36px); letter-spacing: -.02em; }
h3 { font-size: clamp(21px, 2vw, 28px); letter-spacing: -.015em; }
p { margin-top: 0; }
code, pre, kbd { font-family: var(--font-mono); }
code { overflow-wrap: anywhere; font-size: .88em; }
pre {
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--r-small);
  background: var(--bg-panel);
  color: var(--text);
  line-height: 1.8;
  tab-size: 2;
}
pre code { white-space: pre; overflow-wrap: normal; word-break: normal; font-size: 13px; }
[id] { scroll-margin-top: 28px; }
.wrap {
  width: 100%;
  max-width: calc(var(--content-width) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.reading { max-width: calc(var(--reading-width) + var(--gutter) * 2); }
.section { padding-top: var(--section-space); padding-bottom: var(--section-space); }
.stack > * + * { margin-top: 24px; }
.grid { display: grid; gap: 24px; }
.grid--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid > *, .hero-panel > *, .footer-grid > *, .path-chamber > * { min-width: 0; }
.nowrap { white-space: nowrap; }
.muted { color: var(--text-muted); }
.accent-text { color: var(--accent-dark); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 12px 26px;
  border: 0;
  border-radius: var(--r-pill);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: var(--weight-bold);
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  max-width: 100%;
  transition: background-color var(--speed) ease, transform var(--speed) ease;
}
.btn svg { width: 18px; height: 18px; }
.btn--lime { background: var(--accent); color: var(--text); }
.btn--lime:hover, .btn--lime.is-hover { background: var(--accent-hover); color: var(--text); transform: translateY(-1px); }
.btn--ghost {
  background: var(--clear);
  color: var(--on-dark);
  box-shadow: inset 0 0 0 1.5px var(--line-on-dark-strong);
}
.btn--ghost:hover { background: var(--ghost-hover); color: var(--on-dark); }
.btn--outline { background: var(--bg); color: var(--text); box-shadow: inset 0 0 0 1px var(--border); }
.btn--outline:hover { background: var(--bg-panel); color: var(--text); }
.btn:active { transform: translateY(1px); }
.btn:disabled, .btn[aria-disabled="true"] {
  background: var(--bg-panel);
  color: var(--text-muted);
  box-shadow: inset 0 0 0 1px var(--border);
  cursor: not-allowed;
  transform: none;
}
.btn.is-focus { outline: 2px solid var(--accent-dark); outline-offset: 3px; }
.notice {
  background: var(--bar);
  color: var(--on-dark-soft);
  font-size: 13px;
  line-height: 18px;
  text-align: center;
  padding: 9px 20px;
}
.notice p { margin: 0; }
.notice-k { color: var(--on-dark); font-weight: var(--weight-bold); margin-right: 14px; }
.notice a { color: var(--on-dark); font-weight: var(--weight-semibold); margin-left: 18px; }
#site-header { position: relative; z-index: var(--z-header); }
.masthead {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-height);
  width: 100%;
  max-width: min(100%, calc(var(--header-width) + var(--gutter) * 2));
  margin-inline: auto;
  padding-inline: var(--gutter);
  background: var(--bg);
  color: var(--text);
}
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; flex-shrink: 0; }
.brand-mark { width: 34px; height: 34px; border-radius: var(--r-circle); flex-shrink: 0; display: block; }
.brand-placeholder { border-radius: var(--r-small); background: var(--bg-panel); color: var(--text); box-shadow: inset 0 0 0 1.5px var(--border); }
.brand-name { font-family: var(--font-display); font-weight: var(--weight-bold); font-size: 16px; letter-spacing: -.01em; }
.desktop-nav { min-width: 0; margin-left: auto; }
.topnav { display: flex; align-items: center; list-style: none; margin: 0; padding: 0; gap: 30px; }
.topnav li { min-width: 0; }
.topnav a { display: block; padding-top: 12px; padding-bottom: 12px; font-size: 15px; font-weight: var(--weight-medium); color: var(--text-muted); text-decoration: none; white-space: nowrap; }
.topnav a:hover { color: var(--text); }
.topnav a.is-current { color: var(--text); font-weight: var(--weight-bold); }
.header-tools { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.language-control { position: relative; }
.lang { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 36px; padding: 7px 14px; border: 0; border-radius: var(--r-pill); background: var(--bg); color: var(--text); box-shadow: inset 0 0 0 1px var(--border); font-size: 14px; font-weight: var(--weight-medium); white-space: nowrap; }
.lang svg { width: 15px; height: 15px; color: var(--text-muted); }
.lang-short { display: none; }
.language-menu { position: absolute; right: 0; top: calc(100% + 12px); width: 200px; margin: 0; padding: 8px; list-style: none; background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: var(--r-card); box-shadow: var(--shadow-soft); z-index: 4; }
.language-menu a { display: flex; align-items: center; width: 100%; min-height: 44px; padding: 10px 14px; text-decoration: none; border-radius: var(--r-small); }
.language-menu a:hover, .language-menu a[aria-current] { background: var(--bg-panel); color: var(--text); }
.menu-toggle { display: none; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; padding: 10px; border: 1px solid var(--border); border-radius: var(--r-pill); background: var(--bg); color: var(--text); }
.menu-toggle svg { width: 21px; height: 21px; }
.mobile-drawer { display: none; }
.nav-veil { position: fixed; inset: 0; z-index: var(--z-veil); background: var(--veil); color: var(--on-dark); border: 0; }
.hero { padding-inline: 24px; margin-top: 14px; overflow-x: clip; }
.hero-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(0, 1fr);
  column-gap: 48px;
  height: clamp(600px, calc(100vh - 182px), 780px);
  padding: 40px 0 40px 64px;
  border-radius: var(--r-hero);
  background: var(--bg-panel-2);
  color: var(--on-dark);
  overflow: hidden;
}
.hero-copy { display: flex; flex-direction: column; min-height: 0; color: var(--on-dark); }
.hero-main { margin: auto 0; }
.badge { display: inline-flex; align-items: center; gap: 9px; max-width: 100%; margin: 0; padding: 6px 14px 6px 11px; border-radius: var(--r-pill); background: var(--clear); color: var(--on-dark-soft); box-shadow: inset 0 0 0 1px var(--line-on-dark); font-size: 13px; font-weight: var(--weight-semibold); line-height: 18px; }
.badge-dot { width: 8px; height: 8px; border-radius: var(--r-circle); background: var(--accent); color: var(--text); box-shadow: 0 0 0 4px var(--lime-glow); flex-shrink: 0; }
.hero h1 { margin: 24px 0 0; font-size: clamp(30px, 3.2vw, 46px); line-height: 1.16; letter-spacing: -.025em; color: var(--on-dark); }
.hero h1 .hl { color: var(--accent); }
.lede { margin: 20px 0 0; max-width: 31em; font-size: 17px; line-height: 1.7; color: var(--on-dark-muted); }
.lede strong { color: var(--on-dark); font-weight: var(--weight-semibold); }
.cta-row, .get-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 30px; }
.get-note { margin: 14px 0 0; font-size: 13.5px; line-height: 20px; color: var(--text-muted); }
.hero .get-note { color: var(--on-dark-muted); }
.get-note .ver { font-family: var(--font-mono); font-size: 12.5px; }
.hero .get-note .ver { color: var(--on-dark-soft); }
.platforms { display: flex; flex-direction: column; gap: 12px; }
.plat-k { margin: 0; font-size: 12px; font-weight: var(--weight-semibold); letter-spacing: .12em; line-height: 16px; color: var(--on-dark-muted); }
.plat-list { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 22px; margin: 0; padding: 0; list-style: none; }
.plat-list a { display: inline-flex; align-items: center; gap: 7px; min-height: 24px; font-size: 13.5px; font-weight: var(--weight-medium); color: var(--on-dark-soft); text-decoration: none; }
.plat-list a:hover { text-decoration: underline; }
.plat-list svg { width: 16px; height: 16px; color: var(--on-dark-muted); }
.plat-pill { display: inline-flex; flex-wrap: wrap; align-items: center; align-self: flex-start; min-height: 30px; padding: 4px 14px; border-radius: var(--r-pill); box-shadow: inset 0 0 0 1px var(--line-on-dark); font-size: 13px; color: var(--on-dark-soft); }
.plat-pill b { color: var(--on-dark); font-weight: var(--weight-bold); margin-right: 6px; }
.stage { position: relative; min-height: 0; min-width: 0; }
.cells { position: absolute; top: 0; left: 5%; display: flex; gap: 10px; margin: 0; padding: 0; list-style: none; z-index: 1; }
.cell { display: flex; flex-direction: column; gap: 2px; padding: 11px 16px 12px; border-radius: var(--r-cell); background: var(--cell); color: var(--on-dark); box-shadow: inset 0 0 0 1px var(--cell-line), var(--shadow-cell); transition: transform .25s ease; }
.cell:hover { transform: translateY(-3px); }
.cell-k { font-size: 11.5px; line-height: 16px; letter-spacing: .04em; color: var(--on-dark-muted); }
.cell-v { font-family: var(--font-display); font-size: 15px; font-weight: var(--weight-bold); line-height: 22px; color: var(--on-dark); white-space: nowrap; }
.cell-v--mono { font-family: var(--font-mono); font-size: 13px; font-weight: var(--weight-medium); color: var(--on-dark-soft); }
.slate { position: absolute; left: 5%; top: 13.8%; width: 100%; aspect-ratio: 1.44 / 1; padding: 16px; border-radius: var(--r-device); background: var(--bezel); color: var(--on-dark); border: 2px solid var(--titanium); box-shadow: inset 0 0 0 1px var(--highlight), var(--shadow-device); }
.slate::before { content: ""; position: absolute; top: 5px; left: 50%; width: 6px; height: 6px; margin-left: -3px; border-radius: var(--r-circle); background: var(--lens); }
.slate-screen { position: relative; width: 100%; height: 100%; border-radius: var(--r-screen); overflow: hidden; background: radial-gradient(90% 70% at 58% 118%, var(--lime-glow), var(--clear) 62%), radial-gradient(60% 50% at 20% 0%, var(--lime-glow-soft), var(--clear) 70%), linear-gradient(158deg, var(--screen-top) 0%, var(--screen-base) 78%); color: var(--on-dark); box-shadow: inset 0 0 0 1px var(--highlight); }
.arcs { position: absolute; inset: 0; width: 100%; height: 100%; color: var(--arc); }
.arcs .a1 { opacity: .30; }
.arcs .a2 { opacity: .18; }
.arcs .a3 { opacity: .09; }
.qa { position: absolute; z-index: 2; }
.qa--rule { right: 24px; bottom: 186px; max-width: calc(100% - 24px); }
.qa--q { right: 150px; bottom: 98px; width: 300px; }
.qa--a { right: 24px; bottom: 12px; width: 300px; z-index: 3; }
.qa-card { display: flex; align-items: flex-start; gap: 12px; padding: 14px 16px; border-radius: var(--r-card); background: var(--bg); color: var(--text); border: 1px solid var(--border); box-shadow: var(--shadow-card); }
.qa-mark { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; flex-shrink: 0; border-radius: var(--r-circle); font-size: 13px; font-weight: var(--weight-bold); line-height: 1; }
.qa-mark--q { background: var(--chip-q); color: var(--text-muted); }
.qa-mark--a { background: var(--accent); color: var(--text); }
.qa-text { margin: 0; padding-top: 2px; font-size: 14.5px; line-height: 1.5; color: var(--text); }
.qa--rule .qa-card { flex-direction: column; gap: 6px; }
.rule-k { font-family: var(--font-mono); font-size: 11px; line-height: 16px; letter-spacing: .04em; color: var(--text-muted); }
.rule-lines { margin: 0; border: 0; padding: 0; background: var(--clear); color: var(--text); font-family: var(--font-mono); font-size: 12.5px; line-height: 20px; white-space: pre; }
.rule-lines b { color: var(--accent-dark); font-weight: var(--weight-bold); }
.rule-lines i { font-style: normal; color: var(--text-muted); }
.route { max-width: 860px; margin-inline: auto; padding: 44px 24px 0; text-align: center; }
.route-eyebrow { margin: 0; font-size: 13px; font-weight: var(--weight-bold); letter-spacing: .14em; line-height: 18px; color: var(--accent-dark); }
.route h2 { margin: 14px 0 0; font-size: 36px; line-height: 1.22; }
.route h2 em { font-style: normal; color: var(--accent-dark); }
.route-lede { margin: 18px auto 0; max-width: 40em; font-size: 17px; line-height: 1.7; color: var(--text-muted); }
.route .btn { margin-top: 28px; }
.axis { display: flex; flex-direction: column; align-items: center; margin-top: 52px; }
.axis-node { display: inline-flex; align-items: center; justify-content: center; width: 56px; height: 56px; border-radius: var(--r-circle); background: var(--accent-dark); color: var(--on-dark); flex-shrink: 0; }
.axis-node svg { width: 24px; height: 24px; }
.axis-line { width: 1px; height: 100px; background: var(--axis); }
.path-flow { position: relative; padding-bottom: 64px; }
.path-flow::before { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: var(--axis); }
.path-chamber { position: relative; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: center; gap: 64px; padding: 48px; margin-bottom: 64px; background: var(--bg-panel); color: var(--text); border: 1px solid var(--border); border-radius: var(--r-section); }
.path-chamber:nth-child(even) .chamber-copy { order: 2; }
.chamber-copy p { margin-bottom: 0; color: var(--text-muted); line-height: 1.9; }
.chamber-copy h3 { margin-top: 0; }
.chamber-props { display: grid; gap: 16px; padding: 12px; min-width: 0; }
.chamber-props .card:last-child { margin-left: 36px; }
.card { padding: 24px; background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: var(--r-card); box-shadow: var(--shadow-soft); min-width: 0; }
.card h3 { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }
.panel { padding: 40px; border: 1px solid var(--border); border-radius: var(--r-section); background: var(--bg-panel); color: var(--text); min-width: 0; }
.prose { min-width: 0; line-height: 1.9; overflow-wrap: break-word; }
.prose h2 { margin-top: 2.2em; }
.prose h3 { margin-top: 1.8em; }
.prose li + li { margin-top: 8px; }
.prose a { color: var(--accent-dark); }
.reveal { opacity: 1; transform: none; }
html.reveal-ready .reveal:not(.shown) { opacity: 0; transform: translateY(18px); }
html.reveal-ready .reveal { transition: opacity .55s var(--ease), transform .55s var(--ease); }
.site-footer { margin-top: 64px; padding-top: 64px; padding-bottom: 32px; background: var(--bg-panel); color: var(--text); border-radius: var(--r-section) var(--r-section) 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 48px; }
.footer-brand p { margin-top: 20px; max-width: 30em; font-size: 14px; color: var(--text-muted); line-height: 1.9; }
.footer-title { margin: 0 0 16px; font-size: 15px; font-weight: var(--weight-bold); }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer-links a { display: inline-block; padding-top: 4px; padding-bottom: 4px; text-decoration: none; color: var(--text-muted); font-size: 14px; }
.footer-links a:hover { color: var(--accent-dark); text-decoration: underline; }
.footer-languages { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 36px; }
.footer-languages a { min-height: 44px; display: inline-flex; align-items: center; font-size: 14px; color: var(--text-muted); }
.footer-languages [aria-current] { color: var(--text); font-weight: var(--weight-bold); }
.copyright { margin: 20px 0 0; font-size: 12px; color: var(--text-muted); }
@media (max-width: 1279px) {
  .desktop-nav { display: none; }
  .header-tools { margin-left: auto; }
  .menu-toggle { display: inline-flex; }
  .mobile-drawer:not([hidden]) { display: block; position: absolute; top: 100%; left: 0; right: 0; padding: 16px var(--gutter) 24px; max-height: calc(100dvh - var(--header-height)); overflow-y: auto; overscroll-behavior: contain; background: var(--bg); color: var(--text); box-shadow: var(--shadow-soft); z-index: 3; }
  .mobile-drawer ul { list-style: none; margin: 0; padding: 0; }
  .mobile-drawer a { display: flex; align-items: center; width: 100%; min-height: 44px; padding: 12px 16px; color: var(--text); text-decoration: none; border-radius: var(--r-small); }
  .mobile-drawer a:hover, .mobile-drawer a[aria-current] { background: var(--bg-panel); color: var(--text); font-weight: var(--weight-bold); }
  .drawer-heading { margin: 20px 16px 8px; color: var(--text-muted); font-size: 13px; }
}
@media (max-width: 1240px) {
  .hero-panel { padding-left: 44px; column-gap: 36px; }
  .cell--proto { display: none; }
}
@media (max-width: 1040px) {
  .hero-panel { grid-template-columns: minmax(0, 1fr) minmax(0, .9fr); }
  .qa--q { right: 110px; width: 270px; }
  .qa--a { width: 270px; }
}
@media (max-width: 900px) {
  .notice { font-size: 12px; }
  .notice-k { display: block; margin: 0 0 2px; }
  .notice a { margin-left: 8px; }
  .hero { padding-inline: 12px; margin-top: 8px; }
  .hero-panel { grid-template-columns: minmax(0, 1fr); height: auto; padding: 30px 22px 0; border-radius: var(--r-hero-sm); }
  .hero-main { margin: 0; }
  .badge { font-size: 12px; }
  .hero h1 { font-size: clamp(24px, 7.4vw, 30px); margin-top: 18px; }
  .lede { font-size: 15.5px; }
  .cta-row, .get-actions { margin-top: 24px; }
  .btn { min-height: 48px; padding: 12px 22px; font-size: 15px; }
  .platforms { margin-top: 28px; }
  .plat-list { gap: 8px 16px; }
  .stage { height: 330px; margin: 30px -22px 0 0; }
  .cells, .qa--rule { display: none; }
  .slate { left: 4%; top: 26px; width: 112%; padding: 11px; border-radius: var(--r-device-sm); }
  .slate-screen { border-radius: var(--r-small); }
  .qa--q { right: 30%; bottom: 96px; width: 250px; }
  .qa--a { right: 22px; bottom: 26px; width: 250px; }
  .qa-text { font-size: 13.5px; }
  .route h2 { font-size: 26px; }
  .route-lede { font-size: 15.5px; }
  .path-chamber { gap: 28px; padding: 32px; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  h1 { font-size: clamp(24px, 5vw, 30px); }
  .grid--three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  :root { --gutter: 16px; --section-space: 56px; }
  .masthead { gap: 8px; }
  .brand { gap: 8px; min-width: 0; }
  .brand-name { font-size: 13px; max-width: 12em; }
  .brand-mark { width: 30px; height: 30px; }
  .header-tools { margin-left: auto; gap: 6px; }
  .lang { padding-inline: 11px; min-height: 44px; }
  .lang-full { display: none; }
  .lang-short { display: inline; }
  .lang svg { display: none; }
  .grid--two, .grid--three { grid-template-columns: minmax(0, 1fr); }
  .panel { padding: 24px 20px; border-radius: var(--r-hero-sm); }
  .card { padding: 20px; }
  .path-flow { padding-left: 16px; }
  .path-flow::before { left: 0; }
  .path-chamber { grid-template-columns: minmax(0, 1fr); padding: 24px 18px; gap: 20px; border-radius: var(--r-hero-sm); margin-bottom: 40px; }
  .path-chamber:nth-child(even) .chamber-copy { order: 0; }
  .chamber-props { padding: 0; }
  .chamber-props .card:last-child { margin-left: 12px; }
  .tilt, [data-tilt] { transform: none !important; }
  .route { padding-inline: var(--gutter); }
  .footer-grid { gap: 32px 20px; }
  .site-footer { padding-top: 40px; }
  .footer-brand .brand-name { max-width: none; }
}
@media (max-width: 480px) {
  .qa--q { right: 18%; width: 228px; }
  .qa--a { width: 232px; }
}
@media (max-width: 360px) {
  .masthead .brand-name { max-width: 135px; font-size: 12px; }
  .masthead .brand-mark { width: 26px; height: 26px; }
  .hero-panel { padding-inline: 18px; }
  .hero h1 { font-size: 24px; }
  .hero .btn { padding-inline: 18px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.reveal-ready .reveal:not(.shown) { opacity: 1; transform: none; }
  .reveal, .cell, .btn, .topnav a { transition: none !important; }
  .cell:hover, .btn--lime:hover { transform: none; }
}