:root {
  color-scheme: only light;

  --s7-ink:          #0A0A11;
  --s7-ink-raised:   #15151F;
  --s7-ink-border:   #3A3A4A;
  --s7-red:          #B3141C;
  --s7-red-deep:     #8E0F16;
  --s7-red-bright:   #E8434B;
  --s7-red-on-light: #A01016;
  --s7-paper:        #FFFFFF;
  --s7-paper-warm:   #F7F6F2;
  --s7-paper-line:   #E2E0DA;
  --s7-text-dark:    #1A1A22;
  --s7-text-dark-mu: #5A606C;
  --s7-text-light:   #F2F2F5;
  --s7-text-light-mu:#C4C4CC;
  --s7-green-light:  #1B6B3A;   /* "clear" state, light — 5.34:1 on paper */
  --s7-green-dark:   #4ADE80;   /* "clear" state, dark  — 11.3:1 on ink   */

  --bg:            var(--s7-paper);
  --bg-alt:        var(--s7-paper-warm);
  --surface:       var(--s7-paper);
  --surface-sunk:  var(--s7-paper-warm);
  --border:        var(--s7-paper-line);
  --border-strong: #C9C6BE;
  --text:          var(--s7-text-dark);
  --text-muted:    var(--s7-text-dark-mu);
  --accent:        var(--s7-red-on-light);
  --accent-fill:   var(--s7-red-deep);
  --accent-rule:   var(--s7-red);
  --btn-border:    transparent;
  --ok:            var(--s7-green-light);
  --shadow:        0 1px 2px rgba(26, 26, 34, .06), 0 12px 32px -12px rgba(26, 26, 34, .18);
  --shadow-lift:   0 2px 4px rgba(26, 26, 34, .08), 0 22px 48px -16px rgba(26, 26, 34, .26);
  --logo-filter:   none;

  --section-gap: 176px;   /* between two sections: 88 + 88 */
  --col-gap:      56px;   /* between a text column and its image */
  --head-gap:     48px;   /* under a .section-head, before the content it introduces */
  --gutter:       24px;   /* the page's side margin — the line every left edge sits on */

  --measure: 36rem;
  --font: Inter, "Inter fallback Segoe", "Inter fallback Arial",
          system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  --radius: 10px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

[data-theme="dark"] {
  color-scheme: dark;

  --bg:            var(--s7-ink);
  --bg-alt:        #101019;
  --surface:       var(--s7-ink-raised);
  --surface-sunk:  #101019;
  --border:        var(--s7-ink-border);
  --border-strong: #4B4B5E;
  --text:          var(--s7-text-light);
  --text-muted:    var(--s7-text-light-mu);
  --accent:        var(--s7-red-bright);
  --accent-fill:   var(--s7-red);
  --accent-rule:   var(--s7-red-bright);
  --btn-border:    var(--s7-red-bright);
  --ok:            var(--s7-green-dark);
  --shadow:        0 1px 2px rgba(0, 0, 0, .5), 0 12px 32px -12px rgba(0, 0, 0, .7);
  --shadow-lift:   0 2px 4px rgba(0, 0, 0, .55), 0 22px 48px -16px rgba(0, 0, 0, .8);
  --logo-filter:   none;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;   /* the sticky header must not cover an anchor target */
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

.js-motion .reveal {
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
  will-change: opacity, transform;
}
.js-motion .reveal.is-in {
  opacity: 1;
  transform: none;
  will-change: auto;
}
.js-motion .reveal[data-delay="1"] { transition-delay: .08s; }
.js-motion .reveal[data-delay="2"] { transition-delay: .16s; }
.js-motion .reveal[data-delay="3"] { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  .js-motion .reveal { opacity: 1; transform: none; }
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--accent-fill); color: #FFFFFF;
  padding: 14px 22px; font-weight: 700; border-radius: 0 0 var(--radius) 0;
}
.skip:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

.wrap { width: 100%; max-width: 72rem; margin: 0 auto; padding: 0 var(--gutter); }
.wrap-narrow { width: 100%; max-width: 46rem; margin: 0 auto; padding: 0 var(--gutter); }

section { padding: calc(var(--section-gap) / 2) 0; }
.section-run { padding: calc(var(--section-gap) / 4) 0; }
.band { background: var(--bg-alt); }

.eyebrow {
  display: block;
  font-size: 1rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 14px;
}
.section-head { max-width: 42rem; margin: 0 0 var(--head-gap); }
.section-head p { color: var(--text-muted); font-size: 1.15rem; margin-bottom: 0; }
.section-run .section-head { margin-bottom: calc(var(--head-gap) / 2); }

h1, h2, h3, h4 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 .5em; font-weight: 800; }
h1 { font-size: clamp(2.3rem, 5.2vw, 3.65rem); }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.5rem); }
h3 { font-size: 1.3rem; letter-spacing: -0.01em; margin-bottom: 14px; }
h4 { font-size: 1.05rem; letter-spacing: 0; margin-bottom: 10px; }
p, li { max-width: var(--measure); }
p { margin: 0 0 1.1em; }
.lead { font-size: 1.25rem; line-height: 1.55; color: var(--text-muted); max-width: 34rem; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

.site-head {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-head { transition: transform .25s var(--ease); }
[data-head="hidden"] .site-head { transform: translateY(-105%); }
@media (prefers-reduced-motion: reduce) {
  .site-head { transition: none; }
}

@supports not (backdrop-filter: blur(1px)) {
  .site-head { background: var(--bg); }
}
.site-head .wrap {
  display: flex; align-items: center; gap: 12px 24px;
  padding-top: 12px; padding-bottom: 12px;
}

.brand-lockup {
  --lockup-w: 10.5rem;
  display: flex; flex-direction: column; align-items: flex-start;
  gap: calc(var(--lockup-w) * 0.0419);
  flex: 0 0 auto; text-decoration: none;
}
.brand-lockup img { display: block; width: var(--lockup-w); height: auto; }
.brand-lockup .logo-dark { display: none; }
[data-theme="dark"] .brand-lockup .logo-light { display: none; }
[data-theme="dark"] .brand-lockup .logo-dark { display: block; }
.brand-tag {
  margin: 0; max-width: none;
  font-size: max(1rem, calc(var(--lockup-w) * 0.0857));
  line-height: 1.2; letter-spacing: .01em; font-weight: 500;
  color: var(--text-muted);
}

.head-right { display: flex; align-items: center; gap: 12px 24px; margin-left: auto; }
.site-nav { margin-left: 0; }
.site-nav ul { list-style: none; display: flex; align-items: center; flex-wrap: wrap; gap: 2px 4px; margin: 0; padding: 0; }
.site-nav li { max-width: none; }
.site-nav a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 10px 14px;
  color: var(--text); font-weight: 600; font-size: .98rem;
  text-decoration: none; border-radius: 8px;
  transition: background-color .18s var(--ease), color .18s var(--ease);
}
.site-nav a:hover { background: var(--surface-sunk); text-decoration: underline; }
.head-actions { display: flex; align-items: center; gap: 8px; margin-left: 8px; }

.nav-toggle {
  display: none;                      /* the phone media query turns this on */
  align-items: center; gap: 8px;
  min-height: 44px; min-width: 44px; padding: 9px 12px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: 8px;
  font: inherit; font-size: .92rem; font-weight: 600; cursor: pointer;
}
.nav-toggle svg { width: 22px; height: 22px; flex: 0 0 auto; }
.nav-toggle .i-close { display: none; }
[data-nav="open"] .nav-toggle .i-close { display: block; }
[data-nav="open"] .nav-toggle .i-bars { display: none; }

.theme-toggle {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 44px; padding: 9px 14px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: 8px;
  font: inherit; font-size: .92rem; font-weight: 600; cursor: pointer;
  transition: background-color .18s var(--ease), border-color .18s var(--ease);
}
.theme-toggle:hover { background: var(--surface-sunk); border-color: var(--text-muted); }
.theme-toggle svg { width: 18px; height: 18px; flex: 0 0 auto; }
.theme-toggle .t-dark { display: none; }
[data-theme="dark"] .theme-toggle .t-dark { display: inline; }
[data-theme="dark"] .theme-toggle .t-light { display: none; }
[data-theme="dark"] .theme-toggle .i-sun { display: none; }
.theme-toggle .i-moon { display: none; }
[data-theme="dark"] .theme-toggle .i-moon { display: block; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 14px 28px;
  background: var(--accent-fill); color: #FFFFFF;
  font-weight: 700; font-size: 1.05rem; text-decoration: none;
  border: 2px solid var(--btn-border); border-radius: 8px; cursor: pointer;
  font-family: inherit;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), background-color .18s var(--ease);
}
.btn:hover { background: var(--accent-rule); color: #FFFFFF; transform: translateY(-2px); box-shadow: var(--shadow-lift); }
.btn:active { transform: translateY(0); }
@media (prefers-reduced-motion: reduce) { .btn:hover { transform: none; } }

.btn-quiet {
  background: transparent; color: var(--text); border-color: var(--border-strong);
}
.btn-quiet:hover { background: var(--surface-sunk); color: var(--text); border-color: var(--text-muted); }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin: 32px 0 0; }

figure { margin: 0; }   /* the browser default 40px side margin would shrink every
                           screenshot inside its own column */

.shot {
  position: relative;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface-sunk);
  box-shadow: var(--shadow);
  aspect-ratio: 16 / 9;
}
.shot img { display: block; width: 100%; height: 100%; object-fit: cover; }
.shot figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 10px 14px;
  background: rgba(10, 10, 17, .82); color: #F2F2F5;
  font-size: 1rem; letter-spacing: .02em;
}
.shot-plain { box-shadow: none; }

.shot-hero {
  aspect-ratio: auto;
  border: 0; border-radius: 0; overflow: visible;
  background: none; box-shadow: none;
}
.shot-hero img {
  width: 100%; height: auto; object-fit: fill;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.shot-hero figcaption {
  position: static;
  padding: 12px 2px 0;
  background: none; color: var(--text-muted);
  font-size: 1rem; letter-spacing: 0;
}

.hero { padding: calc(var(--section-gap) / 2) 0; overflow: hidden; }
.hero h1 { max-width: 15ch; }
.hero .lead { margin-bottom: 0; }

.hero-grid,
.row {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--col-gap); align-items: center;
}
.hero-grid { align-items: start; }
.hero-grid > figure { align-self: start; margin-top: 10px; }
@media (max-width: 62rem) {
  .hero-grid > figure { margin-top: 0; }
}

.hero-points { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 10px; }
.hero-points li {
  max-width: 34rem; padding-left: 30px; position: relative;
  color: var(--text-muted); font-size: 1rem;
}
.hero-points li::before {
  content: ""; position: absolute; left: 0; top: .55em;
  width: 16px; height: 9px;
  border-left: 3px solid var(--ok); border-bottom: 3px solid var(--ok);
  transform: rotate(-45deg);
}

.flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.flow-step {
  position: relative;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.flow-step:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); border-color: var(--border-strong); }
@media (prefers-reduced-motion: reduce) { .flow-step:hover { transform: none; } }
.flow-step p, .flow-step li { max-width: none; }
.flow-step > :last-child { margin-bottom: 0; }
.flow-n {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; margin-bottom: 16px;
  background: var(--accent-fill); color: #FFFFFF;
  border: 2px solid var(--btn-border);
  border-radius: 50%; font-weight: 800; font-size: 1.05rem;
}

.row { padding: calc(var(--section-gap) / 4) 0; }
.row:first-child, .section-head + .row { padding-top: 0; }
.row:last-child { padding-bottom: 0; }
.row + .row { border-top: 1px solid var(--border); }
.row-flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.row-flip .row-text { grid-column: 2; grid-row: 1; }
.row-flip .row-media { grid-column: 1; grid-row: 1; }
.row-text > :last-child { margin-bottom: 0; }
.row-text h3 { font-size: clamp(1.4rem, 2.4vw, 1.8rem); }

.demo-shell {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 24px; box-shadow: var(--shadow);
}
.demo-stage {
  position: relative; aspect-ratio: 16 / 9;
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  overflow: hidden; background: var(--surface-sunk);
}
.demo-slide {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 6%;
  opacity: 0; visibility: hidden;
  transition: opacity .5s var(--ease), transform .5s var(--ease);
  transform: scale(1.015);
}
.demo-slide.is-on { opacity: 1; visibility: visible; transform: none; }
.no-js-stack .demo-stage { aspect-ratio: auto; border: 0; background: none; overflow: visible; }
.no-js-stack .demo-slide {
  position: static; opacity: 1; visibility: visible; transform: none;
  margin: 0 0 20px; padding: 0; display: block;
  border: 1px solid var(--border-strong); border-radius: var(--radius); overflow: hidden;
}
.no-js-stack .demo-slide img { height: auto; aspect-ratio: 16 / 9; }
.no-js-stack .demo-caption { position: static; left: auto; right: auto; bottom: auto; border-radius: 0; }
.no-js-stack .demo-controls { display: none; }

.demo-slide img { width: 100%; height: 100%; object-fit: cover; }
.demo-slide-img { position: absolute; inset: 0; padding: 0; }
.demo-caption {
  position: absolute; left: 16px; right: 16px; bottom: 16px;
  background: rgba(10, 10, 17, .88); color: #F2F2F5;
  padding: 12px 16px; border-radius: 8px;
  font-size: 1rem; text-align: left;
}
.demo-caption strong { color: #FFFFFF; }
.demo-caption p { max-width: none; margin: 0; }

.demo-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 18px; }
.demo-steps { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.demo-steps li { max-width: none; }
.demo-step-btn {
  min-height: 44px; padding: 10px 16px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: 8px;
  font: inherit; font-size: .95rem; font-weight: 600; cursor: pointer;
  transition: background-color .18s var(--ease), border-color .18s var(--ease);
}
.demo-step-btn:hover { background: var(--surface-sunk); }
.demo-step-btn[aria-current="true"] {
  font-weight: 800; border-color: var(--accent); box-shadow: inset 0 -3px 0 0 var(--accent-rule);
}
.demo-play { margin-left: auto; }

.video-slot { max-width: 56rem; margin: 0 auto; }
.video-slot video { width: 100%; height: auto; display: block; border-radius: var(--radius); background: #000; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 20px; }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); border-color: var(--border-strong); }
@media (prefers-reduced-motion: reduce) { .card:hover { transform: none; } }
.card h3 { margin-top: 0; font-size: 1.15rem; }
.card p, .card li { max-width: none; color: var(--text-muted); }
.card > :last-child { margin-bottom: 0; }
.card-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; margin-bottom: 16px;
  border-radius: 10px; background: var(--surface-sunk); border: 1px solid var(--border);
  color: var(--accent);
}
.card-icon svg { width: 22px; height: 22px; }

.faq { max-width: 52rem; }
.faq details {
  border-bottom: 1px solid var(--border);
}
.faq summary {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 22px 0; cursor: pointer;
  font-weight: 700; font-size: 1.1rem; line-height: 1.4;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; flex: 0 0 auto; margin-left: auto; margin-top: .4em;
  width: 11px; height: 11px;
  border-right: 2.5px solid var(--accent); border-bottom: 2.5px solid var(--accent);
  transform: rotate(45deg);
  transition: transform .25s var(--ease);
}
.faq details[open] summary::after { transform: rotate(-135deg); }
.faq summary:hover { color: var(--accent); }
.faq .faq-body { padding: 0 0 22px; }
.faq .faq-body > :last-child { margin-bottom: 0; }
.faq .faq-body p { color: var(--text-muted); max-width: 44rem; }

.cta-band {
  background: var(--s7-ink); color: var(--s7-text-light);
  border-radius: 16px; padding: 56px 48px; text-align: center;
  position: relative; overflow: hidden;
}
.cta-band h2, .cta-band p { position: relative; }
.cta-band h2 { color: #FFFFFF; }
.cta-band > p { color: var(--s7-text-light-mu); max-width: 36rem; margin-left: auto; margin-right: auto; font-size: 1.15rem; }
.cta-band .gate { background: var(--s7-paper-warm); border-color: var(--s7-red); }
.cta-band .gate p { color: var(--s7-text-dark); font-size: 1rem; }
.cta-band .gate-label { color: var(--s7-red-on-light); }
.cta-band .btn-row { justify-content: center; }
.cta-band .btn { background: var(--s7-red); border-color: var(--s7-red-bright); }
.cta-band .btn:hover { background: var(--s7-red-bright); color: var(--s7-ink); }
.cta-band .btn-quiet { background: transparent; color: #FFFFFF; border-color: #6E6E82; }
.cta-band .btn-quiet:hover { background: rgba(255, 255, 255, .08); color: #FFFFFF; }
.cta-band::before {
  content: ""; position: absolute; inset: -40% -10% auto -10%; height: 140%;
  background: radial-gradient(60% 60% at 50% 0%, rgba(179, 20, 28, .35), transparent 70%);
  pointer-events: none;
}

.site-foot {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  padding: 64px 0 48px;
  font-size: 1rem;
}
.foot-grid {
  display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: 40px 32px; margin-bottom: 44px;
}
.site-foot .foot-head { margin: 0 0 14px; font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text-muted); }
.site-foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.site-foot li { max-width: none; }
.site-foot a { color: var(--text); text-decoration: none; display: inline-block; padding: 9px 0; min-height: 44px; min-width: 44px; }
.site-foot a:hover { color: var(--accent); text-decoration: underline; }
.site-foot p { color: var(--text-muted); }
.foot-legal {
  border-top: 1px solid var(--border); padding-top: 26px;
  display: flex; flex-wrap: wrap; gap: 10px 28px; align-items: center;
  color: var(--text-muted);
}
.foot-legal p { margin: 0; max-width: none; }

.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: 1px;
  background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.fact { background: var(--surface); padding: 26px 24px; }
.fact dt { font-size: .8rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 8px; }
.fact dd { margin: 0; font-size: 1.2rem; font-weight: 700; line-height: 1.3; }
.fact dd span { display: block; font-size: 1rem; font-weight: 400; color: var(--text-muted); margin-top: 6px; }

.step-head { display: flex; align-items: center; gap: 14px; margin: 0 0 12px; }
.step-head .flow-n { margin-bottom: 0; flex: 0 0 auto; width: 34px; height: 34px; font-size: .98rem; }
.step-head .eyebrow { margin: 0; }

.step-jump {
  list-style: none; margin: 0; padding: 0;
  counter-reset: jump;
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px;
}
.step-jump li { counter-increment: jump; margin: 0; max-width: none; }
.step-jump a {
  display: flex; align-items: baseline; gap: 10px;
  height: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface);
  color: var(--text); text-decoration: none;
  font-size: 1rem; font-weight: 600; line-height: 1.35;
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.step-jump a::before {
  content: counter(jump);
  flex: 0 0 auto;
  font-variant-numeric: tabular-nums;
  font-weight: 800; color: var(--accent);
}
.step-jump a:hover { border-color: var(--accent); transform: translateY(-2px); }
.step-jump a:hover, .step-jump a:focus-visible { text-decoration: underline; }
@media (prefers-reduced-motion: reduce) { .step-jump a:hover { transform: none; } }
@media (max-width: 62rem) { .step-jump { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 40rem) { .step-jump { grid-template-columns: 1fr; } }

.note {
  border-left: 3px solid var(--accent-rule);
  padding: 2px 0 2px 18px;
  margin: 22px 0;
  color: var(--text-muted);
}
.note > :last-child { margin-bottom: 0; }

.diagram {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-sunk);
  padding: 20px;
}
.diagram svg { display: block; width: 100%; height: auto; }
.diagram figcaption { margin-top: 14px; font-size: 1rem; color: var(--text-muted); }

.dg-frame { fill: none; stroke: var(--border-strong); stroke-width: 1.5; stroke-dasharray: 7 6; }
.dg-box { fill: var(--surface); stroke: var(--border-strong); stroke-width: 1.5; }
.dg-box-alert { fill: var(--surface); stroke: var(--accent); stroke-width: 3; }
.dg-line { stroke: var(--border-strong); stroke-width: 2; fill: none; }
.dg-line-alert { stroke: var(--accent); stroke-width: 3; fill: none; }
.dg-arrow { fill: var(--border-strong); }
.dg-arrow-alert { fill: var(--accent); }
.dg-t { fill: var(--text); font-size: 15px; font-weight: 700; }
.dg-s { fill: var(--text-muted); font-size: 16px; font-weight: 500; }
.dg-tag { fill: var(--accent); font-size: 12.5px; font-weight: 800; letter-spacing: .08em; }
.dg-tag-quiet { fill: var(--text-muted); font-size: 12.5px; font-weight: 800; letter-spacing: .08em; }

.gate {
  border: 2px dashed var(--accent); background: var(--surface-sunk);
  padding: 18px 22px; border-radius: var(--radius); margin: 0 0 1.4em;
}
.gate > :last-child { margin-bottom: 0; }
.gate p { max-width: none; }
.gate-label {
  display: inline-block; font-size: .78rem; font-weight: 800; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 6px;
}

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

@media (max-width: 72rem) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .hero-grid > figure { margin-top: 0; }
  .hero h1 { max-width: 20ch; }
}

@media (max-width: 62rem) {
  :root { --section-gap: 144px; --col-gap: 40px; --head-gap: 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { max-width: 18ch; }
  .row, .row-flip { grid-template-columns: 1fr; gap: 32px; }
  .row-flip .row-text { grid-column: 1; grid-row: 1; }
  .row-flip .row-media { grid-column: 1; grid-row: 2; }
  .flow { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 56rem) {

  .site-head { backdrop-filter: none; background: var(--bg); }
  .site-head .wrap { flex-wrap: wrap; row-gap: 6px; padding-top: 8px; padding-bottom: 8px; gap: 8px; }
  .head-actions { margin-left: auto; gap: 6px; }
  .head-actions .btn { min-height: 44px; padding: 10px 14px; font-size: .95rem; }
  .btn { min-height: 48px; }

  .head-right { width: 100%; order: 3; margin-left: 0; gap: 8px; }
  .site-nav ul {
    gap: 2px; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .site-nav ul::-webkit-scrollbar { display: none; }
  .site-nav a { padding: 9px 9px; font-size: .88rem; white-space: nowrap; min-height: 40px; }
  .theme-toggle { padding: 8px 11px; font-size: .88rem; }

  .js-nav .nav-toggle { display: inline-flex; justify-content: center; padding: 9px; }
  .nav-toggle-label { display: none; }

  .js-nav .brand-lockup,
  .js-nav .head-actions { position: relative; z-index: 95; }

  .js-nav .head-right {
    position: fixed; inset: 0; z-index: 90;
    width: auto; order: 0; margin: 0;
    display: flex; flex-direction: column; align-items: stretch; gap: 6px;
    padding: 74px 20px calc(24px + env(safe-area-inset-bottom, 0px));
    background: var(--bg);
    overflow-y: auto; overscroll-behavior: contain;
    visibility: hidden; opacity: 0;
    transition: opacity .2s var(--ease), visibility 0s linear .2s;
  }
  .js-nav[data-nav="open"] .head-right {
    visibility: visible; opacity: 1;
    transition: opacity .2s var(--ease);
  }
  .js-nav .site-nav { width: 100%; }
  .js-nav .site-nav ul { flex-direction: column; align-items: stretch; gap: 0; overflow: visible; }
  .js-nav .site-nav li { width: 100%; }
  .js-nav .site-nav a {
    width: 100%; min-height: 56px; padding: 14px 10px;
    font-size: 1.15rem; white-space: normal; border-radius: 10px;
    border-bottom: 1px solid var(--border);
  }
  .js-nav .site-nav a[aria-current="page"] { color: var(--accent); }
  .js-nav .theme-toggle {
    margin-top: 18px; width: 100%; justify-content: center;
    min-height: 52px; padding: 14px; font-size: 1rem;
  }

  html[data-nav="open"], html[data-nav="open"] body { overflow: hidden; }
  .js-nav[data-nav="open"] .site-head { transform: none; }

  .brand-lockup { --lockup-w: 7.5rem; min-height: 44px; justify-content: center; }
  
  .hero { padding: 24px 0 48px; }
  .hero h1 { font-size: clamp(1.9rem, 7.6vw, 2.35rem); line-height: 1.12; max-width: 20ch; }
  .hero .lead { font-size: 1.05rem; line-height: 1.5; }
  .hero-points { margin-top: 18px; gap: 8px; }
  .hero .btn-row { margin-top: 20px; gap: 10px; }
  .hero .btn-row .btn { flex: 1 1 auto; }
  .hero-grid { gap: 28px; }
  .brand-tag { display: none; }
}

@media (max-width: 46rem) {
  :root { --section-gap: 128px; --col-gap: 28px; --head-gap: 32px; }
  .cta-band { padding: 40px 24px; border-radius: 12px; }
  .demo-shell { padding: 14px; }
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fact { padding: 20px 16px; }
  .fact dd { font-size: 1.05rem; }
  .foot-grid { grid-template-columns: 1fr; gap: 28px; }

  .shot-art {
    aspect-ratio: auto;
    border: 0; border-radius: 0; overflow: visible;
    background: none; box-shadow: none;
  }
  .shot-art img {
    aspect-ratio: var(--m-ratio);
    height: auto; object-fit: fill;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }
  .shot-art figcaption {
    position: static;
    padding: 10px 2px 0;
    background: none; color: var(--text-muted);
    font-size: 1rem; letter-spacing: 0;
  }

  .demo-stage {
    display: grid; aspect-ratio: auto;
    border: 0; border-radius: 0; overflow: visible; background: none;
  }
  .demo-slide { position: static; grid-area: 1 / 1; }
  .demo-slide-img { position: static; inset: auto; display: block; }
  .demo-slide img {
    height: auto; aspect-ratio: 5 / 4; object-fit: fill;
    border: 1px solid var(--border-strong); border-radius: var(--radius);
  }
  .demo-caption {
    position: static; left: auto; right: auto; bottom: auto;
    margin-top: 10px; padding: 0; border-radius: 0;
    background: none; color: var(--text); font-size: 1rem;
  }
  .demo-caption strong { color: var(--text); }
  .demo-play { margin-left: 0; width: 100%; }
  .no-js-stack .demo-stage { display: block; }
  .no-js-stack .demo-slide { margin: 0 0 24px; border: 0; border-radius: 0; overflow: visible; }
}

@media print {
  .site-head, .demo-controls, .theme-toggle, .skip { display: none; }
  .js-motion .reveal { opacity: 1; transform: none; }
}

.devices {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: 12px;
}
.device {
  margin: 0; max-width: none;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  text-align: center; padding: 24px 14px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
}
.device-i { display: block; color: var(--text); }
.device-i svg { display: block; width: 36px; height: 36px; }
.device-n { font-weight: 700; line-height: 1.3; }
.device-s {
  font-size: .76rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
  color: var(--text-muted);
}
.device.is-soon { background: var(--surface-sunk); border-style: dashed; border-color: var(--border-strong); }
.device.is-soon .device-i { color: var(--text-muted); }
.device.is-soon .device-s { color: var(--accent); }

@media (max-width: 46rem) {
  .devices { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .device { padding: 18px 12px; }
  .device-i svg { width: 30px; height: 30px; }
  .device-n { font-size: .98rem; }
  .devices > :last-child { grid-column: span 2; }
}

@media (min-width: 56.01rem) {
  .site-nav a { padding-left: 11px; padding-right: 11px; white-space: nowrap; }
  .head-actions .btn-head { white-space: nowrap; }

  .head-right { min-width: 0; }
  .site-nav { min-width: 0; overflow-x: auto; scrollbar-width: none; }
  .site-nav::-webkit-scrollbar { display: none; }
  .site-nav ul { flex-wrap: nowrap; }
}

@media (min-width: 56.01rem) and (max-width: 70rem) {
  .site-nav a { padding-left: 7px; padding-right: 7px; font-size: .9rem; }
  .head-right { gap: 12px 14px; }
  .site-head .wrap { gap: 12px 16px; }
}

@media (min-width: 56.01rem) and (max-width: 60rem) {
  .brand-lockup { --lockup-w: 9rem; }
  .site-nav a { padding-left: 4px; padding-right: 4px; font-size: .85rem; }
  .head-right { gap: 10px 10px; }
  .site-head .wrap { gap: 10px 12px; }
  .head-actions { margin-left: 4px; }
  .head-actions .btn-head { font-size: .95rem; padding-left: 18px; padding-right: 18px; }
}

.hero { position: relative; }
.hero-grid { position: relative; z-index: 1; }

.hero-net {
  position: absolute; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  pointer-events: none;          /* it is scenery; clicks belong to the content above */
  overflow: visible;
  --n7-cycle: 20s;
  --net-op: .085;
  --net-op-live: .20;
  --net-stroke: var(--s7-text-dark-mu);
  --net-alert: var(--s7-red);
  --net-ack: var(--s7-green-light);
  -webkit-mask-image: radial-gradient(132% 126% at 50% 48%, #000 54%, rgba(0,0,0,.62) 84%, transparent 100%);
          mask-image: radial-gradient(132% 126% at 50% 48%, #000 54%, rgba(0,0,0,.62) 84%, transparent 100%);
}
@media (min-width: 900px) {
  .hero-net {
    -webkit-mask-image: linear-gradient(to right, transparent 0%, transparent 40%, rgba(0,0,0,.55) 52%, #000 64%);
            mask-image: linear-gradient(to right, transparent 0%, transparent 40%, rgba(0,0,0,.55) 52%, #000 64%);
  }
}
[data-theme="dark"] .hero-net {
  --net-op: .14;
  --net-op-live: .22;
  --net-stroke: var(--s7-text-light-mu);
  --net-alert: var(--s7-red-bright);
  --net-ack: var(--s7-green-dark);
}

.hero-net .n7-ink { opacity: var(--net-op); }

.n7-link, .n7-pulse {
  fill: none; stroke: var(--net-stroke);
  stroke-width: 1.4; stroke-linecap: round;
}
.n7-link--soon { stroke-dasharray: 5 7; opacity: .62; }

.n7-plate { fill: var(--bg); stroke: var(--net-stroke); stroke-width: 1.4; }
.n7-node--soon .n7-plate { stroke-dasharray: 5 6; }

.n7-glyph { fill: none; stroke: var(--net-stroke); stroke-width: 1.4;
            stroke-linecap: round; stroke-linejoin: round; }
.n7-node--soon .n7-glyph { opacity: .72; }

.n7-hub .n7-plate { stroke-width: 1.8; }
.n7-hub .n7-glyph { stroke-width: 1.6; }
.n7-ring { fill: none; stroke: var(--net-alert); stroke-width: 2; opacity: 0; }

.n7-label {
  fill: var(--net-stroke); font-family: var(--font);
  font-size: 17px; font-weight: 500; letter-spacing: .02em;
  text-anchor: middle;
}
.n7-label--hub { font-weight: 700; letter-spacing: .06em; }
.n7-soon {
  fill: var(--accent); font-family: var(--font);
  font-size: 13px; font-weight: 600; letter-spacing: .08em;
  text-anchor: middle; opacity: .55;
}

.n7-tick {
  fill: none; stroke: var(--net-ack); stroke-width: 3;
  stroke-linecap: round; stroke-linejoin: round;
  opacity: 0;
}

@keyframes n7-drift {
  from { transform: translate3d(0, -2px, 0); }
  to   { transform: translate3d(0, 2.5px, 0); }
}
@keyframes n7-glow {
  from { opacity: .78; }
  to   { opacity: 1; }
}
@keyframes n7-breathe {
  from { opacity: .55; }
  to   { opacity: 1; }
}

.n7-node {
  animation: n7-drift calc(15s + var(--drift, 1) * 1.6s) var(--ease) infinite alternate,
             n7-glow  calc(9s  + var(--drift, 1) * 1.3s) var(--ease) infinite alternate;
  animation-delay: calc(var(--drift, 1) * -2.7s), calc(var(--drift, 1) * -1.9s);
  transform-box: fill-box;       /* so translate3d is in the node's own box, not the page's */
  transform-origin: center;
  will-change: transform;
}
.n7-hub { animation-duration: 21s, 13s; }
.n7-float {
  animation: n7-drift calc(15s + var(--drift, 1) * 1.6s) var(--ease) infinite alternate,
             n7-glow  calc(9s  + var(--drift, 1) * 1.3s) var(--ease) infinite alternate;
  animation-delay: calc(var(--drift, 1) * -2.7s), calc(var(--drift, 1) * -1.9s);
  transform-box: fill-box;
  transform-origin: center;
}
.n7-link {
  animation: n7-breathe calc(11s + var(--i) * .9s) var(--ease) infinite alternate;
  animation-delay: calc(var(--i) * -1.4s);
}

.hero-net .n7-ink  { animation: n7-lift    var(--n7-cycle) var(--ease) infinite both; }
@keyframes n7-lift {
  0%          { opacity: var(--net-op); }
  5.5%        { opacity: var(--net-op-live); }
  42.9%       { opacity: var(--net-op-live); }
  55%, 100%   { opacity: var(--net-op); }
}

.hero-net .n7-ring { animation: n7-ring var(--n7-cycle) var(--ease) infinite both; }
@keyframes n7-ring {
  0%, 0.5%    { opacity: 0;   transform: scale(.92); }
  2.5%        { opacity: .85; }
  8.5%        { opacity: 0;   transform: scale(1.5); }
  8.6%, 100%  { opacity: 0;   transform: scale(.92); }
}
.n7-ring { transform-box: fill-box; transform-origin: center; }

.hero-net .n7-pulse {
  stroke: var(--net-alert); stroke-width: 3.2;
  stroke-dasharray: 9 100;
  opacity: 0;                              /* at rest: no dash, nothing to paint */
  animation: n7-travel var(--n7-cycle) linear infinite both;
  animation-delay: calc(var(--i) * .17s);
}
@keyframes n7-travel {
  0%, 1.25%   { stroke-dashoffset: 109; opacity: 0; }
  1.9%        { opacity: 1; }
  6.5%        { opacity: 1; }
  7.5%        { stroke-dashoffset: 0;   opacity: 0; }
  7.6%, 100%  { stroke-dashoffset: 109; opacity: 0; }
}

.hero-net .n7-node:not(.n7-node--soon) .n7-plate {
  animation: n7-plate var(--n7-cycle) var(--ease) infinite both;
  animation-delay: calc(var(--i) * .17s);
}
@keyframes n7-plate {
  0%, 5.75%   { stroke: var(--net-stroke); stroke-width: 1.4; }
  8.3%        { stroke: var(--net-alert);  stroke-width: 2.6; }
  21.2%       { stroke: var(--net-alert);  stroke-width: 2.6; }
  24.7%       { stroke: var(--net-ack);    stroke-width: 2.6; }
  35.9%       { stroke: var(--net-ack);    stroke-width: 2.6; }
  48.8%, 100% { stroke: var(--net-stroke); stroke-width: 1.4; }
}

.hero-net .n7-node:not(.n7-node--soon) .n7-glyph {
  animation: n7-glyph-out var(--n7-cycle) var(--ease) infinite both;
  animation-delay: calc(var(--i) * .17s);
}
@keyframes n7-glyph-out {
  0%, 5.75%, 21.2% { opacity: 1; }
  24.7%, 35.9%     { opacity: 0; }
  48.8%, 100%      { opacity: 1; }
}

.hero-net .n7-tick {
  animation: n7-tick-in var(--n7-cycle) var(--ease) infinite both;
  animation-delay: calc(var(--i) * .17s);
}
@keyframes n7-tick-in {
  0%, 5.75%, 21.2% { opacity: 0; transform: scale(.7); }
  25.5%            { opacity: 1; transform: scale(1); }
  35.9%            { opacity: 1; transform: scale(1); }
  48.8%            { opacity: 0; transform: scale(1); }
  48.9%, 100%      { opacity: 0; transform: scale(.7); }
}
.n7-tick { transform-box: fill-box; transform-origin: center; }

.hero-net.is-paused, .hero-net.is-paused * { animation-play-state: paused !important; }

.hero-net.n7-restart, .hero-net.n7-restart * { animation-name: none !important; }

@media (max-width: 62rem) {
  .hero-net { --net-op: .07; --net-op-live: .17; }
  [data-theme="dark"] .hero-net { --net-op: .12; --net-op-live: .19; }
}
@media (max-width: 46rem) {
  .hero-net .n7-wide { display: none; }
  .hero-net { --net-op: .065; --net-op-live: .16; }
  [data-theme="dark"] .hero-net { --net-op: .11; --net-op-live: .175; }
  .n7-label { font-size: 21px; }
  .n7-soon  { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-net *, .hero-net { animation: none !important; }
  .hero-net .n7-ink { opacity: var(--net-op); }
  .n7-pulse, .n7-tick, .n7-ring { opacity: 0; }
  .n7-plate { stroke: var(--net-stroke); stroke-width: 1.4; }
  .n7-glyph { opacity: 1; }
  .n7-node--soon .n7-glyph { opacity: .72; }
  .n7-node { transform: none; opacity: 1; }
  .n7-link { opacity: 1; }
  .n7-link--soon { opacity: .62; }
}