/* ==========================================================================
   VisionATS — design tokens
   ========================================================================== */
:root {
  --bg: #ffffff;
  --bg-soft: #f7f7f7;
  --ink: #0b0b0c;
  --ink-2: #24262a;
  --muted: #5c6067;
  --faint: #8d9199;
  --line: #e6e6e7;
  --line-2: #f0f0f0;
  --dark: #0d0d0e;
  --dark-2: #17181a;
  --dark-line: rgba(255, 255, 255, .14);
  --accent: #2f5d8a;
  --accent-strong: #23486b;
  --accent-light: #8cb4d8;
  --accent-soft: #edf3f8;
  --accent-line: #cfdfec;
  --band: #eeeeef;
  --band-line: #dedee0;
  --max: 1320px;
  --gutter: 24px;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --font: Inter, "Helvetica Neue", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "SF Mono", ui-monospace, "Roboto Mono", "Segoe UI Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -.005em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.section-dark :focus-visible { outline-color: var(--accent-light); }

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -.035em; }
h1 { font-size: clamp(40px, 4.9vw, 72px); line-height: 1.02; letter-spacing: -.042em; }
h2 { font-size: clamp(30px, 3.4vw, 50px); line-height: 1.06; }
h3 { font-size: 20px; line-height: 1.25; letter-spacing: -.02em; }
p { margin: 0; }

.skip-link {
  position: fixed; left: 16px; top: 16px; z-index: 1000;
  padding: 10px 14px; background: var(--ink); color: #fff;
  border-radius: var(--r-sm); transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.container { width: min(calc(100% - var(--gutter) * 2), var(--max)); margin-inline: auto; }
.section { padding: 120px 0; }
.section-soft { background: var(--bg-soft); }
.section-dark { background: var(--dark); color: #fff; }
.section-dark p { color: rgba(255, 255, 255, .66); }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 100;
  background: rgba(247, 247, 247, 0);
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, transform .35s ease;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, .82);
  border-bottom-color: var(--line);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
}
.site-header.hidden { transform: translateY(-100%); }
.nav-wrap { height: 96px; display: flex; align-items: center; gap: 40px; }
.brand { flex: none; position: relative; z-index: 3; display: block; }
.brand img { width: 236px; height: auto; }

.primary-nav {
  flex: 1; display: flex; align-items: center; gap: 34px;
  font-size: 14.5px; font-weight: 500; color: var(--ink-2);
}
.primary-nav > a:not(.button) { position: relative; padding: 4px 0; }
.primary-nav > a:not(.button)::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: currentColor; transition: right .28s ease;
}
.primary-nav > a:not(.button):hover::after,
.primary-nav > a.active::after { right: 0; }
.primary-nav > a.active { color: var(--accent); }
.primary-nav .button { margin-left: auto; }

.nav-toggle {
  display: none; width: 44px; height: 44px; margin-left: auto;
  border: 0; background: transparent; padding: 13px; position: relative; z-index: 3;
}
.nav-toggle span { display: block; height: 1.5px; background: currentColor; margin: 6px 0; transition: transform .25s ease, opacity .25s ease; }
.nav-toggle.active span:first-child { transform: translateY(3.75px) rotate(45deg); }
.nav-toggle.active span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* Section rail */
.section-progress {
  position: fixed; right: 22px; top: 50%; transform: translateY(-50%); z-index: 90;
  display: flex; flex-direction: column; align-items: flex-end; gap: 16px;
  mix-blend-mode: difference;
  opacity: 0; pointer-events: none; transition: opacity .35s ease;
}
/* the hero image bleeds to the right edge of the viewport, so the rail is only
   shown once the hero has been scrolled past */
.section-progress.rail-visible { opacity: 1; pointer-events: auto; }
.section-progress a { display: flex; align-items: center; gap: 10px; }
.section-progress a span {
  width: 18px; height: 1.5px; background: rgba(255, 255, 255, .45);
  transition: width .25s ease, background .25s ease;
}
.section-progress a::before {
  content: attr(data-label); font-size: 11px; font-weight: 600; letter-spacing: .02em;
  color: #fff; opacity: 0; transform: translateX(6px);
  transition: opacity .2s ease, transform .2s ease; white-space: nowrap; pointer-events: none;
}
.section-progress a:hover::before, .section-progress a.active::before { opacity: 1; transform: translateX(0); }
.section-progress a.active span { width: 30px; background: #fff; }

/* ==========================================================================
   Buttons, eyebrows, links
   ========================================================================== */
.button {
  min-height: 54px; padding: 0 24px; border-radius: var(--r-sm);
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  border: 1px solid transparent; font-weight: 600; font-size: 14.5px; letter-spacing: -.01em;
  cursor: pointer; transition: background .22s ease, color .22s ease, border-color .22s ease, transform .22s ease;
}
.button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; transition: transform .25s ease; }
.button:hover svg { transform: translateX(3px); }
.button-dark { background: var(--ink); color: #fff; }
.button-dark:hover { background: var(--accent-strong); }
.button-outline { background: #fff; color: var(--ink); border-color: var(--line); }
.button-outline:hover { border-color: var(--accent); color: var(--accent); }
.button-light { background: #fff; color: var(--ink); }
.button-light:hover { background: rgba(255, 255, 255, .86); }
.button-small { min-height: 44px; padding-inline: 20px; font-size: 14px; }

.eyebrow {
  text-transform: uppercase; letter-spacing: .15em; font-size: 11px; font-weight: 600;
  color: var(--accent); margin: 0 0 22px;
}
.section-dark .eyebrow, .dark-card .eyebrow { color: var(--accent-light); }

.section-more { margin-top: 50px; }
.section-more.centered { text-align: center; }

.text-link {
  display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 15px;
  border-bottom: 1px solid var(--line); padding-bottom: 4px; transition: border-color .22s ease;
}
.text-link:hover { color: var(--accent); border-bottom-color: var(--accent); }
.section-dark .text-link { color: #fff; border-bottom-color: rgba(255, 255, 255, .28); }
.section-dark .text-link:hover { color: var(--accent-light); border-bottom-color: var(--accent-light); }
.text-link span { transition: transform .25s ease; }
.text-link:hover span { transform: translateX(4px); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { background: var(--bg-soft); padding: 150px 0 0; position: relative; }
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 560px) minmax(0, 1fr);
  gap: 48px; align-items: center; padding-bottom: 84px;
}
.hero-copy { max-width: 560px; }
.hero h1 { margin: 0 0 26px; }
.hero h1 span { color: var(--accent); }
.hero-lead { font-size: 17px; line-height: 1.68; color: var(--muted); max-width: 470px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 36px 0 46px; }

.hero-features {
  list-style: none; margin: 0; padding: 26px 0 0; border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
}
.hero-features li { padding-left: 24px; border-left: 1px solid var(--line); }
.hero-features li:first-child { padding-left: 0; border-left: 0; }
.hero-features svg { width: 26px; height: 26px; fill: none; stroke: var(--accent); stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 14px; }
.hero-features strong { display: block; font-size: 14.5px; font-weight: 600; letter-spacing: -.015em; }
.hero-features span { display: block; font-size: 13px; color: var(--faint); line-height: 1.4; }

.hero-visual { position: relative; margin-right: calc(-1 * max((100vw - var(--max)) / 2, var(--gutter))); }
.hero-visual img { width: 100%; height: auto; background: var(--bg-soft); }

.hero-strip {
  background: var(--band);
  border-top: 1px solid var(--band-line);
  border-bottom: 1px solid var(--band-line);
}
.strip-inner { display: flex; align-items: center; gap: 30px; padding: 30px 0; flex-wrap: wrap; }
.strip-label {
  display: inline-flex; align-items: center; gap: 14px;
  text-transform: uppercase; letter-spacing: .16em; font-size: 11px; font-weight: 600; color: var(--accent);
}
.strip-label::after { content: ""; width: 26px; height: 1px; background: #c9cacd; }
.strip-inner ul { list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 0; margin: 0; padding: 0; }
.strip-inner li { display: flex; align-items: center; font-size: 17px; font-weight: 600; letter-spacing: -.02em; color: var(--ink); }
.strip-inner li + li::before {
  content: ""; flex: none; width: 5px; height: 5px; border-radius: 50%;
  background: #c2c4c8; margin: 0 24px;
}

/* ==========================================================================
   Sub page hero, prose and reference list
   ========================================================================== */
.page-hero { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 168px 0 70px; }
.page-hero h1 { font-size: clamp(34px, 4vw, 58px); max-width: 17ch; margin-bottom: 24px; }
.page-hero > .container > p { font-size: 18px; line-height: 1.62; color: var(--muted); max-width: 60ch; }
.page-hero-meta {
  display: flex; flex-wrap: wrap; gap: 40px; margin-top: 40px; padding-top: 26px;
  border-top: 1px solid var(--line);
}
.page-hero-meta div { max-width: 26ch; }
.page-hero-meta strong { display: block; font-size: 15px; font-weight: 600; letter-spacing: -.015em; }
.page-hero-meta span { display: block; font-size: 13.5px; color: var(--faint); line-height: 1.45; }

.prose { max-width: 68ch; }
.prose p { color: var(--muted); font-size: 16.5px; margin-bottom: 18px; }
.prose p:last-child { margin-bottom: 0; }
.prose h3 { margin: 38px 0 12px; }
.prose ul { margin: 0 0 18px; padding-left: 22px; color: var(--muted); font-size: 16.5px; }
.prose li { margin-bottom: 9px; }
.prose strong { color: var(--ink); font-weight: 600; }
.section-dark .prose strong { color: #fff; }

.ref-list { border-top: 1px solid var(--line); margin-top: 34px; }
.ref-item { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 22px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.ref-item > span { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; color: var(--faint); }
.ref-item p { font-size: 14.5px; color: var(--muted); }
.ref-item strong { display: block; color: var(--ink); font-size: 15px; font-weight: 600; letter-spacing: -.015em; margin-bottom: 4px; }
.ref-item a { color: var(--accent); border-bottom: 1px solid var(--accent-line); }
.ref-item a:hover { border-bottom-color: var(--accent); }

.page-cta { background: var(--dark); color: #fff; padding: 86px 0; }
.page-cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 44px; flex-wrap: wrap; }
.page-cta h2 { font-size: clamp(26px, 3vw, 40px); max-width: 19ch; }
.page-cta p { color: rgba(255, 255, 255, .66); max-width: 46ch; margin-top: 14px; }

.primary-nav > a[aria-current="page"] { color: var(--accent); }
.primary-nav > a[aria-current="page"]::after { right: 0; }

@media (max-width: 980px) {
  .page-hero { padding: 132px 0 56px; }
  .page-hero-meta { gap: 24px; }
}

/* ==========================================================================
   Section headings
   ========================================================================== */
.section-heading { max-width: 780px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading h2 { margin-bottom: 20px; }
.section-heading > p:not(.eyebrow) { color: var(--muted); font-size: 17px; }

.split-heading { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: end; margin-bottom: 62px; }
.split-heading h2 { max-width: 15ch; }
.split-heading > p:not(.eyebrow) { color: var(--muted); font-size: 17px; padding-bottom: 6px; }

/* ==========================================================================
   Bento grid
   ========================================================================== */
.bento-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 66px; }
.bento-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 34px; position: relative; overflow: hidden;
  transition: border-color .25s ease, transform .25s ease;
}
.bento-card:hover { border-color: #d2d2d4; }
.bento-card h3 { margin: 16px 0 10px; }
.bento-card p { color: var(--muted); font-size: 15px; }
.card-index { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; color: var(--faint); }
.bento-large { grid-column: span 1; grid-row: span 2; display: flex; flex-direction: column; justify-content: space-between; gap: 34px; }
.bento-wide { grid-column: span 2; }
.bento-grid-solo { grid-template-columns: 1fr; }
.bento-grid-solo .bento-wide { grid-column: span 1; }
.dark-card { background: var(--dark); border-color: var(--dark); color: #fff; }
.dark-card p { color: rgba(255, 255, 255, .62); }
.dark-card .card-index { color: var(--accent-light); }
.dark-card:hover { border-color: rgba(140, 180, 216, .34); }

.headset-illustration { position: relative; padding: 10px 0 4px; }
.headset-illustration::before {
  content: ""; position: absolute; left: 50%; top: 52%; transform: translate(-50%, -50%);
  width: 74%; height: 88%; border-radius: 50%; pointer-events: none;
  background: radial-gradient(closest-side, rgba(47, 93, 138, .55), transparent 72%);
}
.headset-illustration svg, .hs-tag { position: relative; }
.headset-illustration svg { width: 100%; height: auto; fill: none; stroke: rgba(255, 255, 255, .5); stroke-width: 1.4; }
.headset-illustration .hs-body { stroke: rgba(255, 255, 255, .78); }
.headset-illustration .hs-lens { stroke: rgba(140, 180, 216, .6); }
.headset-illustration .hs-dot { fill: var(--accent-light); stroke: none; }
.hs-tag {
  position: absolute; font-family: var(--mono); font-size: 10px; letter-spacing: .1em;
  padding: 5px 9px; border-radius: 6px; background: rgba(47, 93, 138, .32);
  border: 1px solid rgba(140, 180, 216, .42); color: var(--accent-light);
  animation: float 5s ease-in-out infinite;
}
.hs-tag-a { top: 2%; left: 4%; }
.hs-tag-b { top: 24%; right: 2%; animation-delay: -1.6s; }
.hs-tag-c { bottom: 4%; left: 22%; animation-delay: -3.2s; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

.mini-icon { width: 44px; height: 44px; border: 1px solid var(--accent-line); background: var(--accent-soft); border-radius: 10px; display: grid; place-items: center; }
.mini-icon svg { width: 21px; height: 21px; fill: none; stroke: var(--accent); stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }

.flow-diagram { display: flex; align-items: center; gap: 4px; margin-top: 34px; flex-wrap: wrap; }
.flow-node {
  flex: 1 1 150px; border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 18px 16px; background: var(--bg-soft);
}
.flow-node.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.flow-icon { display: block; line-height: 0; color: var(--accent); }
.flow-icon svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.flow-node.active .flow-icon { color: rgba(255, 255, 255, .8); }
.flow-node b { display: block; font-size: 14.5px; font-weight: 600; margin-top: 10px; }
.flow-node small { display: block; font-size: 12px; color: var(--faint); }
.flow-node.active small { color: rgba(255, 255, 255, .55); }
.flow-line { flex: 0 0 34px; height: 1px; background: var(--line); position: relative; overflow: hidden; }
.flow-line i {
  position: absolute; top: 0; bottom: 0; left: 0; width: 72%;
  background: linear-gradient(90deg, transparent, var(--accent) 55%, transparent);
  animation: flow-pulse 2.8s linear infinite;
}
.flow-diagram > .flow-line:nth-child(4) i { animation-delay: .42s; }
.flow-diagram > .flow-line:nth-child(6) i { animation-delay: .84s; }
@keyframes flow-pulse {
  0%, 6% { transform: translateX(-115%); }
  40%, 100% { transform: translateX(155%); }
}
@keyframes flow-pulse-v {
  0%, 6% { transform: translateY(-115%); }
  40%, 100% { transform: translateY(155%); }
}
.flow-node.active { animation: node-arrive 2.8s ease-out infinite 1.2s; }
@keyframes node-arrive {
  0%, 100% { box-shadow: 0 0 0 0 rgba(47, 93, 138, 0); }
  8% { box-shadow: 0 0 0 4px rgba(47, 93, 138, .3); }
  45% { box-shadow: 0 0 0 11px rgba(47, 93, 138, 0); }
}

/* ==========================================================================
   Metrics + comparison
   ========================================================================== */
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.metric-card { padding: 34px 30px 8px; border-left: 1px solid var(--line); }
.metric-card:first-child { padding-left: 0; border-left: 0; }
.metric-card:last-child { padding-right: 0; }
.metric-number { font-size: 42px; font-weight: 600; letter-spacing: -.04em; line-height: 1; display: block; }
.metric-card h3 { font-size: 16.5px; margin: 20px 0 8px; }
.metric-card p { color: var(--muted); font-size: 14.5px; }

.comparison-card { margin-top: 80px; background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 38px; }
.comparison-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; flex-wrap: wrap; margin-bottom: 28px; }
.comparison-heading h3 { font-size: 25px; max-width: 22ch; }
.comparison-legend { display: flex; gap: 20px; font-size: 12.5px; color: var(--faint); }
.comparison-legend span { display: inline-flex; align-items: center; gap: 8px; }
.comparison-legend i { width: 16px; height: 16px; display: block; background-repeat: no-repeat; background-position: center; background-size: 16px 16px; }
.legacy-dot { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23a9adb3' stroke-width='1.5' stroke-linecap='round'%3E%3Ccircle cx='8' cy='8' r='6.7'/%3E%3Cpath d='M5.3 8h5.4'/%3E%3C/svg%3E"); }
.vision-dot { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='8' cy='8' r='7.3' fill='%232f5d8a'/%3E%3Cpath d='M4.9 8.3 7 10.4l4.2-4.7' fill='none' stroke='%23ffffff' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-size: 16px 16px; border-radius: 50%; position: relative; animation: live-pulse 2.6s ease-out infinite; }
.comparison-table { border-top: 1px solid var(--line); }
.comparison-row { display: grid; grid-template-columns: 1fr 1.2fr 1.2fr; gap: 20px; padding: 17px 0; border-bottom: 1px solid var(--line-2); font-size: 15px; }
.comparison-row:last-child { border-bottom: 0; }
.heading-row { font-size: 11px; text-transform: uppercase; letter-spacing: .13em; color: var(--faint); font-weight: 600; }
.cell-label { display: none; }
.minus, .plus { display: inline-flex; align-items: flex-start; gap: 10px; }
.minus::before, .plus::before {
  content: ""; flex: none; width: 16px; height: 16px; margin-top: 3px;
  background-repeat: no-repeat; background-position: center; background-size: 16px 16px;
}
.minus { color: var(--faint); }
.minus::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23a9adb3' stroke-width='1.5' stroke-linecap='round'%3E%3Ccircle cx='8' cy='8' r='6.7'/%3E%3Cpath d='M5.3 8h5.4'/%3E%3C/svg%3E"); }
.plus { color: var(--accent); font-weight: 600; }
.plus::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='8' cy='8' r='7.3' fill='%232f5d8a'/%3E%3Cpath d='M4.9 8.3 7 10.4l4.2-4.7' fill='none' stroke='%23ffffff' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-size: 16px 16px; }

/* every check badge pulses in the same rhythm as the legend, staggered so the
   wave visibly travels down the table from the legend through each row */
.plus::before { animation: live-pulse 2.6s ease-out infinite; border-radius: 50%; }
.comparison-row:nth-child(2) .plus::before { animation-delay: .18s; }
.comparison-row:nth-child(3) .plus::before { animation-delay: .36s; }
.comparison-row:nth-child(4) .plus::before { animation-delay: .54s; }
.comparison-row:nth-child(5) .plus::before { animation-delay: .72s; }
.comparison-row:nth-child(6) .plus::before { animation-delay: .9s; }
.comparison-row:nth-child(7) .plus::before { animation-delay: 1.08s; }
.comparison-row:nth-child(8) .plus::before { animation-delay: 1.26s; }

/* ==========================================================================
   Experience
   ========================================================================== */
.experience-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 66px; align-items: center; }
.experience-copy h2 { margin-bottom: 18px; }
.experience-copy > p:not(.eyebrow) { color: var(--muted); }
.feature-list { list-style: none; margin: 34px 0 0; padding: 0; }
.feature-list li { display: flex; gap: 18px; padding: 18px 0; border-top: 1px solid var(--line); }
.feature-list span { font-family: var(--mono); font-size: 11px; color: var(--faint); padding-top: 4px; }
.feature-list strong { display: block; font-size: 15.5px; font-weight: 600; letter-spacing: -.015em; }
.feature-list small { display: block; font-size: 14px; color: var(--muted); }

.vr-frame { border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; background: #fff; }
.vr-status {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 12px 18px; border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; color: var(--faint);
}
.vr-status b { color: var(--ink); letter-spacing: .16em; }
.vr-status > span:first-child { color: var(--accent); }
.vr-status i {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  display: inline-block; margin-right: 7px; animation: live-pulse 2s ease-out infinite;
}
@keyframes live-pulse {
  0% { box-shadow: 0 0 0 0 rgba(47, 93, 138, .5); }
  70% { box-shadow: 0 0 0 6px rgba(47, 93, 138, 0); }
  100% { box-shadow: 0 0 0 0 rgba(47, 93, 138, 0); }
}
.vr-scene { aspect-ratio: 16 / 9; overflow: hidden; background: #111; }
.vr-scene-photo { width: 100%; height: 100%; object-fit: cover; }
.visual-caption { display: flex; justify-content: space-between; gap: 20px; margin-top: 14px; font-size: 12.5px; color: var(--faint); }

/* ==========================================================================
   Network
   ========================================================================== */
.scale-section .section-heading { margin-bottom: 70px; }
.network-visual { position: relative; display: grid; grid-template-columns: 1fr auto 1fr; gap: 60px; align-items: center; }
.network-label { text-transform: uppercase; letter-spacing: .15em; font-size: 10.5px; font-weight: 600; color: var(--accent-light); margin-bottom: 16px; }
.airport-node, .operator-node {
  display: flex; align-items: center; gap: 14px; padding: 16px 18px; margin-bottom: 12px;
  border: 1px solid var(--dark-line); border-radius: var(--r-md); background: var(--dark-2);
  position: relative; z-index: 2;
}
.airport-node i {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent-light); flex: none;
  animation: live-pulse-dark 2s ease-out infinite;
}
.airport-node:nth-child(3) i { animation-delay: .5s; }
.airport-node:last-child i { background: rgba(255, 255, 255, .28); animation: none; }
@keyframes live-pulse-dark {
  0% { box-shadow: 0 0 0 0 rgba(140, 180, 216, .5); }
  70% { box-shadow: 0 0 0 7px rgba(140, 180, 216, 0); }
  100% { box-shadow: 0 0 0 0 rgba(140, 180, 216, 0); }
}
.airport-node div, .operator-node div { flex: 1; }
.airport-node strong, .operator-node strong { display: block; font-size: 14.5px; font-weight: 600; }
.airport-node span, .operator-node small { display: block; font-size: 12.5px; color: rgba(255, 255, 255, .5); }
.airport-node em { font-style: normal; font-family: var(--mono); font-size: 10px; letter-spacing: .1em; color: var(--accent-light); }
.airport-node:last-child em { color: rgba(255, 255, 255, .4); }
.operator-node > span:first-child {
  width: 36px; height: 36px; border-radius: 8px; display: grid; place-items: center; flex: none;
  background: rgba(255, 255, 255, .08); font-size: 11px; font-weight: 600; letter-spacing: .05em;
}
.operator-node > i {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent-light); flex: none;
  animation: live-pulse-dark 2s ease-out infinite;
}
.operator-node:nth-child(3) > i { animation-delay: .5s; }
.operator-node:nth-child(4) > i { animation-delay: 1s; }
.network-core { position: relative; display: grid; place-items: center; }
.core-mark {
  position: relative; z-index: 2; width: 168px; padding: 26px 18px; text-align: center;
  border: 1px solid rgba(140, 180, 216, .34); border-radius: var(--r-lg); background: var(--dark-2);
}
.core-mark img { width: 54px; margin: 0 auto 14px; filter: invert(1); }
.core-mark strong { display: block; font-size: 12px; letter-spacing: .16em; }
.core-mark span { display: block; font-size: 10px; letter-spacing: .12em; color: rgba(255, 255, 255, .4); margin-top: 4px; }
.pulse { position: absolute; width: 190px; height: 190px; border-radius: 50%; border: 1px solid rgba(140, 180, 216, .3); animation: pulse 4s ease-out infinite; }
.pulse.p2 { animation-delay: -2s; }
@keyframes pulse { 0% { transform: scale(.7); opacity: .7; } 100% { transform: scale(1.5); opacity: 0; } }
.network-lines { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; }
.network-lines path {
  fill: none; stroke: rgba(140, 180, 216, .45); stroke-width: 1;
  stroke-dasharray: 4 5; vector-effect: non-scaling-stroke;
  animation: net-flow 1.5s linear infinite;
}
.network-lines path:nth-child(n+4) { animation-delay: .35s; }
@keyframes net-flow { to { stroke-dashoffset: -18; } }

/* ==========================================================================
   Use cases
   ========================================================================== */
.use-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.use-card {
  border: 1px solid var(--line); border-radius: var(--r-lg); padding: 30px;
  display: flex; flex-direction: column; transition: border-color .25s ease, background .25s ease;
}
.use-card:hover { border-color: #d2d2d4; background: var(--bg-soft); }
.use-card > span { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; color: var(--faint); }
.use-symbol { margin: 22px 0 18px; color: var(--accent); line-height: 0; }
.use-symbol svg { width: 28px; height: 28px; fill: none; stroke: currentColor; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.use-card h3 { font-size: 18px; margin-bottom: 10px; }
.use-card p { color: var(--muted); font-size: 14.5px; }

/* ==========================================================================
   Technology stack
   ========================================================================== */
.technology-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 66px; align-items: start; }
.technology-copy h2 { margin-bottom: 18px; }
.technology-copy > p:not(.eyebrow) { color: var(--muted); margin-bottom: 28px; }
.stack-list { border-top: 1px solid var(--line); }
.stack-row {
  display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.4fr) auto;
  gap: 24px; align-items: baseline; padding: 22px 0; border-bottom: 1px solid var(--line);
  transition: padding-left .25s ease;
}
.stack-row:hover { padding-left: 10px; }
.stack-row > div { display: flex; gap: 14px; align-items: baseline; }
.stack-row span { font-family: var(--mono); font-size: 11px; color: var(--faint); }
.stack-row strong { font-size: 16px; font-weight: 600; letter-spacing: -.015em; }
.stack-row p { color: var(--muted); font-size: 14.5px; }
.stack-row em { font-style: normal; font-family: var(--mono); font-size: 10px; letter-spacing: .12em; color: var(--faint); }

/* ==========================================================================
   Roadmap (inside the technology section)
   ========================================================================== */
.roadmap { margin-top: 92px; padding-top: 54px; border-top: 1px solid var(--line); }
.roadmap.roadmap-flush { margin-top: 66px; padding-top: 0; border-top: 0; }
.roadmap-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 44px; flex-wrap: wrap; margin-bottom: 48px; }
.roadmap-head h3 { font-size: 27px; max-width: 20ch; }
.roadmap-note { font-size: 14px; color: var(--muted); max-width: 44ch; }

.roadmap-track { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); }
.roadmap-stage { position: relative; padding-right: 30px; }
.roadmap-stage::before { content: ""; position: absolute; left: 13px; right: 0; top: 6px; height: 1px; background: #d3d5d8; }
.roadmap-stage:last-child::before { display: none; }
.roadmap-marker {
  position: relative; z-index: 2; display: block; width: 13px; height: 13px; border-radius: 50%;
  border: 1px solid #bfc2c6; background: var(--bg-soft);
}
.roadmap-stage.is-current .roadmap-marker { border-color: var(--accent); background: var(--accent); animation: live-pulse 2s ease-out infinite; }
.roadmap-body { margin-top: 24px; }
.roadmap-phase { display: block; font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); }
.roadmap-stage.is-current .roadmap-phase { color: var(--accent); }
.roadmap-body strong { display: block; font-size: 17px; font-weight: 600; letter-spacing: -.02em; margin: 10px 0 8px; }
.roadmap-body p { font-size: 14.5px; color: var(--muted); }

/* ==========================================================================
   Component diagram on the technology page
   ========================================================================== */
.stack-diagram { margin: 64px 0 0; padding: 40px 0 0; border-top: 1px solid var(--line); }
.stack-diagram svg { width: 100%; height: auto; display: block; }
.stack-diagram figcaption { margin-top: 22px; font-size: 14px; color: var(--muted); max-width: 62ch; }

.stack-diagram text { font-family: var(--font); }
.sd-zone { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; fill: var(--faint); }
.sd-label { font-family: var(--mono); font-size: 12px; letter-spacing: .12em; fill: var(--accent); }
.sd-sub { font-size: 13px; fill: var(--muted); }

.stack-diagram [class^="sd-"]:not(text) { fill: none; stroke: var(--accent); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.sd-divider { stroke: var(--line); stroke-width: 1; stroke-dasharray: 3 6; }
.sd-ground, .sd-mast { stroke: var(--ink); stroke-width: 1.6; }
.sd-ground { stroke: #c9cbcf; }
.sd-cable { stroke: #bfc2c6; stroke-width: 1.4; }
.sd-fill { fill: var(--accent); stroke: none; }
.sd-sweep { stroke: var(--accent); stroke-width: 1.3; stroke-dasharray: 5 6; opacity: .75; animation: net-flow 2.4s linear infinite; }
.sd-cone { fill: rgba(47, 93, 138, .12); stroke: var(--accent); stroke-width: 1.4;
  transform-box: view-box; transform-origin: 184px 181px; animation: sd-pan 7s ease-in-out infinite; }
.sd-chip, .sd-chip-pins { stroke: var(--accent); }
.sd-box rect:first-child { stroke: var(--ink); }
.sd-link { stroke: var(--accent); stroke-width: 1.4; stroke-dasharray: 4 5; animation: net-flow 1.6s linear infinite; }
.sd-body { stroke: var(--ink); stroke-width: 1.8; }
.sd-lens, .sd-strap { stroke: var(--accent); }

@keyframes sd-pan {
  0%, 100% { transform: rotate(-11deg); }
  50% { transform: rotate(11deg); }
}

/* the diagram carries text, so it must not shrink below readable size:
   labels grow on mid screens, and below 860px it scrolls sideways instead */
@media (max-width: 1100px) {
  .sd-label { font-size: 14px; }
  .sd-sub { font-size: 15px; }
  .sd-zone { font-size: 13px; }
}
@media (max-width: 860px) {
  .stack-diagram {
    margin-top: 46px; padding-top: 30px;
    overflow-x: auto; overscroll-behavior-x: contain;
    scrollbar-width: none;
  }
  .stack-diagram::-webkit-scrollbar { display: none; }
  .stack-diagram svg { min-width: 780px; }
  .stack-diagram figcaption { position: sticky; left: 0; }
  /* while the diagram pans itself, say so; the hint disappears on first touch */
  .stack-diagram.auto-panning figcaption::after {
    content: "Panning automatically — touch to control";
    display: block; margin-top: 8px;
    font-family: var(--mono); font-size: 11px; letter-spacing: .06em; color: var(--faint);
  }
}

/* ==========================================================================
   Deployment steps
   ========================================================================== */
.deployment-section .section-heading { margin-bottom: 64px; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.step { display: block; padding: 30px 28px 0; border-left: 1px solid var(--line); }
.step:first-child { padding-left: 0; border-left: 0; }
.step:last-child { padding-right: 0; }
.step-number { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; color: var(--faint); margin-bottom: 16px; }
.step h3 { font-size: 17.5px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14.5px; }

/* ==========================================================================
   Research
   ========================================================================== */
.research-section { padding: 120px 0; }
.research-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 66px; align-items: center; }
.research-copy h2 { margin-bottom: 20px; }
.research-meta { display: flex; gap: 40px; margin-top: 32px; flex-wrap: wrap; font-size: 13.5px; color: rgba(255, 255, 255, .5); }
.research-meta strong { display: block; font-size: 22px; color: #fff; font-weight: 600; letter-spacing: -.03em; }
.research-card { border: 1px solid var(--dark-line); border-radius: var(--r-lg); padding: 36px; background: var(--dark-2); }
.research-card-top { display: flex; justify-content: space-between; align-items: center; text-transform: uppercase; letter-spacing: .14em; font-size: 10.5px; font-weight: 600; color: var(--accent-light); }
.research-card blockquote { margin: 26px 0 20px; font-size: 26px; line-height: 1.25; letter-spacing: -.03em; font-weight: 500; }
.research-card a { display: inline-block; margin-top: 22px; font-size: 14.5px; font-weight: 600; border-bottom: 1px solid rgba(255, 255, 255, .3); padding-bottom: 3px; }
.research-card a:hover { color: var(--accent-light); border-bottom-color: var(--accent-light); }

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 66px; align-items: start; }
.faq-intro h2 { margin-bottom: 18px; }
.faq-intro > p:not(.eyebrow) { color: var(--muted); }
.accordion { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: none; border: 0; padding: 24px 0; cursor: pointer; text-align: left;
  font-size: 17px; font-weight: 600; letter-spacing: -.02em;
}
.faq-item i { position: relative; width: 14px; height: 14px; flex: none; }
.faq-item i::before, .faq-item i::after {
  content: ""; position: absolute; background: var(--accent); transition: transform .25s ease, opacity .25s ease;
}
.faq-item i::before { left: 0; right: 0; top: 6.5px; height: 1.5px; }
.faq-item i::after { top: 0; bottom: 0; left: 6.25px; width: 1.5px; }
.faq-item.open i::after { transform: scaleY(0); opacity: 0; }
.faq-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .32s ease; }
.faq-item.open .faq-answer { grid-template-rows: 1fr; }
.faq-answer p { overflow: hidden; color: var(--muted); font-size: 15.5px; padding-right: 40px; }
.faq-item.open .faq-answer p { padding-bottom: 26px; }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-section { padding: 120px 0; }
.contact-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 70px; align-items: start; }
.contact-copy h2 { margin-bottom: 18px; }
.contact-details { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 36px; }
.contact-details a { border: 1px solid var(--dark-line); border-radius: var(--r-md); padding: 16px 22px; transition: border-color .22s ease, background .22s ease; }
.contact-details a:hover { border-color: rgba(255, 255, 255, .4); background: var(--dark-2); }
.contact-details span { display: block; font-size: 10.5px; text-transform: uppercase; letter-spacing: .14em; color: var(--accent-light); margin-bottom: 5px; }
.contact-details strong { font-size: 15.5px; font-weight: 600; }

.contact-form { display: grid; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form label { display: block; font-size: 12.5px; color: rgba(255, 255, 255, .55); }
.contact-form input, .contact-form textarea {
  width: 100%; margin-top: 8px; padding: 15px 16px; border-radius: var(--r-sm);
  border: 1px solid var(--dark-line); background: var(--dark-2); color: #fff;
  font-size: 15px; transition: border-color .2s ease;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent-light); outline: none; }
.contact-form textarea { resize: vertical; min-height: 116px; }
.contact-form ::placeholder { color: rgba(255, 255, 255, .3); }
.form-submit { width: 100%; margin-top: 6px; }
.form-note { font-size: 12.5px; color: rgba(255, 255, 255, .42); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { border-top: 1px solid var(--line); padding: 54px 0 34px; }
.footer-top { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; padding-bottom: 34px; border-bottom: 1px solid var(--line); }
.footer-brand img { width: 200px; height: auto; }
.footer-top p { color: var(--faint); font-size: 14.5px; flex: 1; min-width: 220px; }
.back-top { font-size: 14px; font-weight: 600; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 30px; padding-top: 24px; font-size: 14.5px; font-weight: 500; }
.footer-nav a { color: var(--ink-2); }
.footer-nav a:hover, .footer-nav a[aria-current="page"] { color: var(--accent); }

.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; padding-top: 26px; font-size: 13px; color: var(--faint); }
.footer-bottom div { display: flex; gap: 24px; }
.footer-bottom a:hover { color: var(--ink); }

/* ==========================================================================
   Reveal
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.22, .61, .36, 1), transform .7s cubic-bezier(.22, .61, .36, 1); }
.reveal.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: .09s; }
.delay-2 { transition-delay: .18s; }
.delay-3 { transition-delay: .27s; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1180px) {
  .hero-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .bento-large { grid-row: span 1; }
  .bento-wide { grid-column: span 2; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-card:nth-child(odd) { padding-left: 0; border-left: 0; }
  .metric-card:nth-child(even) { padding-right: 0; padding-left: 30px; border-left: 1px solid var(--line); }
  .metric-card:nth-child(3), .metric-card:nth-child(4) { border-top: 1px solid var(--line); }
  .use-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step:nth-child(odd) { padding-left: 0; border-left: 0; }
  .step:nth-child(even) { padding-right: 0; padding-left: 28px; border-left: 1px solid var(--line); }
  .step:nth-child(3), .step:nth-child(4) { border-top: 1px solid var(--line); }
}

@media (max-width: 980px) {
  .section, .research-section, .contact-section { padding: 88px 0; }
  .hero { padding-top: 128px; }
  .hero-grid { grid-template-columns: 1fr; padding-bottom: 56px; }
  .hero-copy { max-width: 620px; }
  .hero-lead { max-width: 560px; }
  .hero-visual { margin-inline: calc(-1 * max((100vw - var(--max)) / 2, var(--gutter))); }
  .split-heading, .experience-grid, .technology-grid, .faq-grid, .research-grid, .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .roadmap { margin-top: 64px; padding-top: 44px; }
  .roadmap-head { margin-bottom: 36px; }
  .roadmap-track { grid-template-columns: 1fr; }
  .roadmap-stage { padding: 0 0 30px 34px; }
  .roadmap-stage:last-child { padding-bottom: 0; }
  .roadmap-stage::before { left: 6px; right: auto; top: 15px; bottom: 0; width: 1px; height: auto; }
  .roadmap-marker { position: absolute; left: 0; top: 1px; }
  .roadmap-body { margin-top: 0; }
  .split-heading { align-items: start; }
  .network-visual { grid-template-columns: 1fr; gap: 30px; }
  .network-lines { display: none; }
  .core-mark { margin-inline: auto; }
}

@media (max-width: 900px) {
  .flow-diagram { flex-direction: column; align-items: stretch; gap: 0; margin-top: 28px; }
  .flow-node { flex: none; width: 100%; }
  .flow-line { flex: none; align-self: center; width: 1px; height: 24px; }
  .flow-line i {
    top: 0; bottom: auto; left: 0; right: 0; width: auto; height: 72%;
    background: linear-gradient(180deg, transparent, var(--accent) 55%, transparent);
    animation-name: flow-pulse-v;
  }
}

@media (max-width: 860px) {
  .nav-wrap { height: 76px; }
  .brand img { width: 190px; }
  .nav-toggle { display: block; }
  .site-header.scrolled {
    background: rgba(255, 255, 255, .97);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .primary-nav {
    position: fixed; inset: 0; flex-direction: column; justify-content: flex-start; align-items: flex-start;
    gap: 6px; padding: 100px 28px 44px; background: var(--bg);
    font-size: clamp(23px, 6.6vw, 30px); letter-spacing: -.03em;
    overflow-y: auto; overscroll-behavior: contain;
    transform: translateX(100%); transition: transform .38s cubic-bezier(.4, 0, .2, 1);
  }
  .primary-nav.open { transform: none; }
  .primary-nav > a:first-of-type { margin-top: auto; }
  .primary-nav .button { margin: 22px 0 auto; font-size: 15px; }
  .primary-nav > a:not(.button)::after { display: none; }
  .section-progress { display: none; }
  .site-header.hidden { transform: none; }
}

@media (max-width: 720px) {
  :root { --gutter: 20px; }
  .hero-features { grid-template-columns: 1fr; gap: 0; }
  .hero-features li { padding: 18px 0 0; border-left: 0; border-top: 1px solid var(--line); display: flex; align-items: center; gap: 16px; }
  .hero-features li:first-child { padding-top: 0; border-top: 0; }
  .hero-features svg { margin-bottom: 0; flex: none; }
  .hero-actions { gap: 10px; }
  .hero-actions .button { flex: 1 1 100%; }
  .strip-inner { gap: 18px; padding: 24px 0; }
  .strip-inner li { font-size: 15px; }
  .strip-inner li + li::before { margin: 0 14px; }
  .bento-grid, .use-grid { grid-template-columns: 1fr; }
  .bento-wide { grid-column: span 1; }
  .metrics-grid { grid-template-columns: 1fr; }
  .metric-card:nth-child(odd), .metric-card:nth-child(even) { padding: 34px 0 8px; border-left: 0; border-top: 1px solid var(--line); }
  .metric-card:first-child { border-top: 0; }
  .comparison-card { padding: 26px 22px; }
  .comparison-row { grid-template-columns: 1fr; gap: 8px; padding: 18px 0; }
  .heading-row { display: none; }
  .comparison-row > div:first-child { font-weight: 600; }
  .cell-label { display: block; font-size: 10.5px; text-transform: uppercase; letter-spacing: .12em; color: var(--faint); }
  .steps { grid-template-columns: 1fr; }
  .step:nth-child(odd), .step:nth-child(even) { border-left: 0; border-top: 1px solid var(--line); padding: 26px 0 0; }
  .step:first-child { border-top: 0; }
  .stack-row { grid-template-columns: 1fr; gap: 8px; }
  .stack-row em { justify-self: start; }
  .form-row { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}