:root {
  color-scheme: light;
  --paper: #f6f7f2;
  --raised: #fffef9;
  --foam: #e8f1ed;
  --wash: #dbe9e5;
  --ink: #113238;
  --ink-soft: #214950;
  --muted: #597074;
  --faint: #829397;
  --sea: #087f83;
  --sea-dark: #075d63;
  --sea-bright: #28a9a3;
  --sky: #346f9d;
  --coral: #c95b43;
  --yellow: #c58d23;
  --line-soft: rgb(17 50 56 / 20%);
  --frame: 1280px;
  --rail: 52px;
  --shadow: 5px 5px 0 var(--ink);
  --sans: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-family: var(--sans);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  overflow-x: hidden;
  background-color: var(--wash);
  background-image:
    linear-gradient(90deg, transparent 49%, rgb(17 50 56 / 6%) 49% 51%, transparent 51%),
    repeating-linear-gradient(0deg, transparent 0 21px, rgb(17 50 56 / 12%) 21px 22px);
  background-size: 22px 22px, auto;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--coral); outline-offset: 3px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { text-wrap: balance; }
.shell { width: min(calc(100% - 48px), var(--frame)); margin-inline: auto; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  padding: 9px 13px;
  transform: translateY(-160%);
  border: 1px solid var(--ink);
  background: var(--raised);
  box-shadow: 3px 3px 0 var(--ink);
  font-weight: 700;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  background: rgb(246 247 242 / 96%);
  transition: box-shadow 150ms ease;
  backdrop-filter: blur(12px);
}
.site-header.header-scrolled, body.menu-open .site-header { box-shadow: 0 8px 0 rgb(17 50 56 / 7%); }
.nav {
  display: flex;
  height: 64px;
  padding-inline: 24px;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--ink);
  border-top: 0;
  background: var(--paper);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 1rem; font-weight: 800; letter-spacing: -.025em; }
.brand img { display: block; width: 30px; height: 30px; border: 1px solid var(--ink); border-radius: 0; }
.nav-links, .nav-actions { display: flex; align-items: center; gap: 7px; }
.nav-links { margin-left: 46px; }
.nav-links a, .text-link {
  padding: 5px 9px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .72rem;
  transition: background 120ms ease, color 120ms ease;
}
.nav-links a:hover, .text-link:hover { background: var(--foam); color: var(--ink); }

.button {
  display: inline-flex;
  min-height: 46px;
  padding: 0 19px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--sea-dark);
  box-shadow: 4px 4px 0 var(--ink);
  color: #fffef9;
  font-size: .87rem;
  font-weight: 720;
  transition: transform 100ms ease, box-shadow 100ms ease, background 120ms ease;
}
.button:hover { transform: translate(-2px, -2px); background: var(--sea); box-shadow: 6px 6px 0 var(--ink); }
.button:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--ink); }
.button-small { min-height: 36px; padding-inline: 14px; box-shadow: 3px 3px 0 var(--ink); font-size: .76rem; }
.menu-button, .mobile-nav { display: none; }

.system-band { background: var(--paper); }
.system-band .shell {
  display: flex;
  min-height: 38px;
  padding: 8px 24px;
  align-items: center;
  gap: 22px;
  border: 1px solid var(--ink);
  border-top: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .03em;
}
.system-band span:first-child { color: var(--ink); font-weight: 700; }
.system-band i { display: inline-block; width: 7px; height: 7px; margin-right: 8px; background: var(--sea); box-shadow: 0 0 0 3px rgb(8 127 131 / 13%); }
.system-band a { margin-left: auto; color: var(--sea-dark); font-weight: 700; }

main {
  width: min(calc(100% - 48px), var(--frame));
  margin-inline: auto;
  border-inline: 1px solid var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(rgb(17 50 56 / 8%) 1px, transparent 1.2px);
  background-size: 22px 22px;
}
main .shell { width: 100%; margin: 0; }
main > section { position: relative; border-bottom: 1px solid var(--ink); }
main > section::before {
  position: absolute;
  z-index: 4;
  top: 28px;
  left: 17px;
  color: var(--sea-dark);
  content: attr(data-section);
  font-family: var(--mono);
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}
main > section::after { position: absolute; z-index: 3; inset: 0 auto 0 var(--rail); width: 1px; background: var(--ink); content: ""; pointer-events: none; }

.hero { min-height: 690px; padding: 72px 42px 0 calc(var(--rail) + 38px); background: rgb(246 247 242 / 91%); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(440px, .96fr); gap: 58px; align-items: center; }
.hero-grid > *, .event-grid > *, .batch-callout > *, .split-heading > * { min-width: 0; }
.eyebrow, .kicker {
  margin: 0 0 18px;
  color: var(--sea-dark);
  font-family: var(--mono);
  font-size: .66rem;
  font-weight: 760;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.eyebrow { display: flex; align-items: center; gap: 10px; }
.eyebrow span { width: 26px; height: 7px; background: var(--sea); }
h1 { max-width: 690px; margin-bottom: 24px; font-size: clamp(3rem, 5.5vw, 4.8rem); font-weight: 820; letter-spacing: -.058em; line-height: .98; }
.hero-lead { max-width: 610px; margin-bottom: 30px; color: var(--muted); font-size: clamp(1rem, 1.55vw, 1.14rem); line-height: 1.58; }
.hero-actions { display: flex; align-items: center; gap: 15px; }
.install-command {
  display: flex;
  min-height: 46px;
  padding: 0 14px;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--raised);
  box-shadow: 3px 3px 0 var(--ink);
  color: var(--ink);
  cursor: pointer;
  transition: transform 100ms ease, box-shadow 100ms ease;
}
.install-command:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--ink); }
.install-command code, .install-command .prompt { font-family: var(--mono); font-size: .72rem; }
.install-command .prompt { color: var(--sea); font-weight: 800; }
.install-command svg { width: 16px; fill: none; stroke: var(--muted); stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.5; }
.copy-label { width: 33px; color: var(--muted); font-family: var(--mono); font-size: .6rem; }
.hero-note { margin: 19px 0 0; color: var(--faint); font-family: var(--mono); font-size: .66rem; line-height: 1.5; }

.product-window { overflow: hidden; border: 1px solid var(--ink); background: var(--ink); box-shadow: 7px 7px 0 var(--sea); color: #edf5f1; }
.window-bar { display: grid; grid-template-columns: 1fr auto 1fr; padding: 11px 13px; align-items: center; border-bottom: 1px solid #739095; background: #173f46; color: #b4c5c3; font-family: var(--mono); font-size: .62rem; }
.window-dots { display: flex; gap: 6px; }
.window-dots span { width: 8px; height: 8px; border: 1px solid #bdd0cc; }
.window-dots span:first-child { background: var(--coral); }
.window-dots span:nth-child(2) { background: var(--yellow); }
.window-dots span:last-child { background: var(--sea-bright); }
.window-title { font-weight: 650; }
.window-status { display: flex; align-items: center; justify-content: flex-end; gap: 7px; }
.window-status span, .live-badge i, .process-live i { width: 7px; height: 7px; background: var(--sea-bright); }
.code-panel { padding: 24px 26px 21px; }
.code-panel pre { margin: 0; overflow-x: auto; }
.code-panel code { color: #d8e4df; font-family: var(--mono); font-size: clamp(.67rem, 1vw, .77rem); line-height: 1.75; }
.code-purple { color: #cfb9fa; } .code-green { color: #78d7bd; } .code-blue { color: #8ebde0; }
.code-yellow { color: #e6c16f; } .code-orange { color: #e58b6d; }
.event-rail { border-top: 1px solid #739095; background: #173f46; }
.rail-row { display: grid; grid-template-columns: 1.25fr .75fr; padding: 10px 15px; align-items: center; border-bottom: 1px solid rgb(200 223 217 / 24%); font-family: var(--mono); font-size: .65rem; }
.rail-head { color: #91aaa7; font-size: .56rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.event-pill { display: flex; align-items: center; gap: 7px; color: #bacbc8; }
.event-pill i { width: 6px; height: 6px; background: #7fafd2; }
.event-pill b { color: #fffef9; }
.state-change { display: flex; justify-content: flex-end; gap: 8px; }
.state-change s { color: #8fa4a3; } .state-change strong { color: #6be0c6; }
.commit-line { display: flex; padding: 10px 15px; align-items: center; gap: 8px; color: #a7bab7; font-family: var(--mono); font-size: .58rem; }
.commit-line span { position: relative; width: 14px; height: 14px; border: 1px solid #6be0c6; }
.commit-line span::after { position: absolute; top: 3px; left: 3px; width: 5px; height: 3px; border-bottom: 1px solid #6be0c6; border-left: 1px solid #6be0c6; content: ""; transform: rotate(-45deg); }
.signal-strip { display: grid; grid-template-columns: repeat(7, auto); margin: 66px -42px 0 calc(var(--rail) * -1 - 38px); padding: 15px 26px 15px calc(var(--rail) + 38px); align-items: center; justify-content: space-between; border-top: 1px solid var(--ink); background: var(--foam); color: var(--muted); font-family: var(--mono); font-size: .61rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; }
.signal-strip i { width: 5px; height: 5px; background: var(--sea); }

.section { padding: 100px 42px 100px calc(var(--rail) + 38px); background: rgb(246 247 242 / 92%); }
.section-heading h2, .event-copy h2, .batch-copy h2, .cta-content h2 { margin-bottom: 20px; font-size: clamp(2.25rem, 4.4vw, 3.8rem); font-weight: 800; letter-spacing: -.052em; line-height: 1.02; }
.split-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, .48fr); gap: 72px; margin-bottom: 64px; align-items: end; }
.split-heading > p { margin-bottom: 8px; color: var(--muted); font-size: .98rem; }
.model-section { background-color: var(--paper); background-image: linear-gradient(180deg, rgb(232 241 237 / 75%), transparent 250px); }

.process-flow { display: grid; grid-template-columns: minmax(170px, .85fr) 72px minmax(215px, 1fr) 72px minmax(210px, .92fr); margin-bottom: 60px; align-items: center; }
.flow-node { border: 1px solid var(--ink); background: var(--raised); box-shadow: 3px 3px 0 var(--ink); }
.source-node { padding: 13px; }
.flow-label { margin-bottom: 9px; color: var(--muted); font-family: var(--mono); font-size: .58rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.event-stack { display: grid; gap: 5px; }
.event-stack span { display: flex; padding: 7px 8px; align-items: center; gap: 7px; border: 1px solid var(--line-soft); background: var(--foam); color: var(--ink-soft); font-family: var(--mono); font-size: .62rem; }
.event-stack i { width: 5px; height: 5px; background: var(--sky); }
.flow-arrow { position: relative; height: 1px; margin-inline: 12px; background: var(--ink); }
.flow-arrow::after { position: absolute; top: -3px; right: 0; width: 6px; height: 6px; border-top: 1px solid var(--ink); border-right: 1px solid var(--ink); content: ""; transform: rotate(45deg); }
.flow-arrow span { position: absolute; top: -3px; left: 12%; width: 7px; height: 7px; background: var(--sea); animation: flow 2.2s linear infinite; }
@keyframes flow { from { left: 10%; opacity: 0; } 20%, 80% { opacity: 1; } to { left: 90%; opacity: 0; } }
.process-node, .compact-node { display: flex; align-items: center; }
.process-node { min-height: 100px; padding: 17px; gap: 12px; border-color: var(--sea-dark); box-shadow: 4px 4px 0 var(--sea); }
.process-node img { border: 1px solid var(--ink); border-radius: 0; }
.process-node strong, .compact-node strong { display: block; margin-bottom: 1px; font-size: .85rem; }
.process-node small, .compact-node small { display: block; color: var(--muted); font-family: var(--mono); font-size: .57rem; }
.process-live { display: flex; margin-left: auto; align-items: center; gap: 6px; color: var(--muted); font-family: var(--mono); font-size: .57rem; }
.flow-outputs { display: grid; gap: 8px; }
.compact-node { padding: 11px; gap: 11px; }
.node-icon { display: grid; width: 30px; height: 30px; flex: 0 0 auto; place-items: center; border: 1px solid var(--sky); background: #e9f0f5; color: var(--sky); font-family: var(--mono); font-size: .69rem; }
.output-icon { border-color: var(--sea); background: #e3f1ed; color: var(--sea-dark); }
.principles-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--ink); background: var(--raised); box-shadow: 4px 4px 0 var(--ink); }
.principles-grid article { min-height: 210px; padding: 26px; }
.principles-grid article + article { border-left: 1px solid var(--ink); }
.principle-number { color: var(--sea-dark); font-family: var(--mono); font-size: .62rem; font-weight: 700; }
.principles-grid h3, .guarantee-grid h3, .use-case-list h3 { margin: 13px 0 8px; font-size: 1.03rem; letter-spacing: -.025em; }
.principles-grid p, .guarantee-grid p, .use-case-list p { margin: 0; color: var(--muted); font-size: .84rem; line-height: 1.65; }

.event-section { overflow: hidden; background-color: var(--foam); background-image: repeating-linear-gradient(0deg, transparent 0 43px, rgb(17 50 56 / 6%) 43px 44px); }
.event-grid { display: grid; grid-template-columns: minmax(0, .78fr) minmax(450px, 1.06fr); gap: 78px; align-items: center; }
.event-copy > p:not(.kicker), .batch-copy > p:not(.kicker) { max-width: 560px; color: var(--muted); font-size: .96rem; }
.check-list { display: grid; gap: 10px; margin: 27px 0 0; padding: 0; list-style: none; }
.check-list li { display: flex; align-items: center; gap: 10px; color: var(--ink-soft); font-size: .83rem; }
.check-list span { display: grid; width: 20px; height: 20px; place-items: center; border: 1px solid var(--sea-dark); background: var(--raised); color: var(--sea-dark); font-family: var(--mono); font-size: .61rem; }
.watermark-card { padding: 0 25px 25px; border: 1px solid var(--ink); background: var(--raised); box-shadow: 5px 5px 0 var(--sea); }
.watermark-head { display: flex; margin-inline: -25px; margin-bottom: 52px; padding: 13px 17px; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--ink); background: var(--ink); color: #edf5f1; font-family: var(--mono); font-size: .68rem; font-weight: 650; }
.live-badge { display: flex; align-items: center; gap: 7px; color: #b8c9c6; font-size: .59rem; }
.timeline { padding: 0 8px 31px; }
.timeline-labels { display: flex; justify-content: space-between; color: var(--muted); font-family: var(--mono); font-size: .57rem; }
.timeline-track { position: relative; height: 72px; margin-top: 11px; border-top: 1px solid var(--ink); background-image: linear-gradient(90deg, var(--line-soft) 1px, transparent 1px); background-size: 33.333% 100%; }
.event-dot { position: absolute; top: -5px; width: 9px; height: 9px; border: 2px solid var(--raised); background: var(--sky); box-shadow: 0 0 0 1px var(--sky); }
.event-dot::after { position: absolute; top: 14px; left: -22px; width: max-content; color: var(--muted); content: attr(data-label); font-family: var(--mono); font-size: .55rem; white-space: nowrap; }
.event-one { left: 11%; } .event-two { left: 39%; }
.late-dot { top: 43px; left: 25%; background: var(--coral); box-shadow: 0 0 0 1px var(--coral); }
.late-dot::before { position: absolute; bottom: 7px; left: 2px; width: 1px; height: 42px; border-left: 1px dashed var(--coral); content: ""; }
.watermark-line { position: absolute; inset: -12px auto -8px 76%; width: 2px; background: var(--sea); }
.watermark-line b { position: absolute; top: -27px; right: -7px; width: max-content; color: var(--sea-dark); font-family: var(--mono); font-size: .55rem; }
.gate-code { display: grid; grid-template-columns: 32px 1fr auto; padding: 15px; align-items: center; gap: 12px; border: 1px solid var(--ink); background: var(--foam); }
.gate-icon { display: grid; width: 30px; height: 30px; place-items: center; border: 1px solid var(--sea-dark); background: var(--raised); color: var(--sea-dark); }
.gate-code code { color: var(--ink-soft); font-family: var(--mono); font-size: .61rem; line-height: 1.65; }
.gate-open { padding: 3px 7px; border: 1px solid var(--sea-dark); background: #d9eee8; color: var(--sea-dark); font-family: var(--mono); font-size: .54rem; font-weight: 750; text-transform: uppercase; }

.batch-section { padding-block: 72px; }
.batch-callout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; padding: 52px; align-items: center; border: 1px solid var(--ink); background: var(--ink); box-shadow: 6px 6px 0 var(--sea); color: #f4f6f0; }
.batch-copy .kicker { color: #6fd9ce; }
.batch-copy h2 { font-size: clamp(2.05rem, 3.7vw, 3.2rem); }
.batch-copy > p:not(.kicker) { color: #b9cac7; }
.batch-meter { padding: 22px; border: 1px solid #89a2a2; background: #173f46; box-shadow: 4px 4px 0 #7f9c9b; }
.meter-head, .meter-foot { display: flex; align-items: center; justify-content: space-between; color: #b6c8c5; font-family: var(--mono); font-size: .63rem; }
.meter-head strong { color: #fffef9; }
.meter-track { display: block; height: 9px; margin: 17px 0; overflow: hidden; border: 1px solid #769091; background: var(--ink); }
.meter-track span { display: block; width: 75%; height: 100%; background: #62d3c6; }
.meter-foot strong { color: #e8c267; } .meter-foot i { color: #8ea5a4; font-style: normal; }
.batch-rule { display: flex; margin-top: 12px; align-items: center; justify-content: center; gap: 11px; color: #95aaa8; font-family: var(--mono); font-size: .59rem; }
.batch-rule strong { color: #dce8e4; } .batch-rule i { color: #62d3c6; font-style: normal; }

.guarantees-section { background: var(--paper); }
.centered-heading { max-width: 760px; margin: 0 auto 58px; text-align: center; }
.centered-heading > p:last-child { color: var(--muted); }
.guarantee-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--ink); background: var(--raised); box-shadow: var(--shadow); }
.guarantee-grid article { min-height: 240px; padding: 27px; }
.guarantee-grid article + article { border-left: 1px solid var(--ink); }
.guarantee-icon { display: grid; width: 38px; height: 38px; margin-bottom: 24px; place-items: center; border: 1px solid var(--sea-dark); background: var(--foam); color: var(--sea-dark); font-family: var(--mono); font-size: .96rem; }
.guarantee-footnote { max-width: 740px; margin: 26px auto 0; color: var(--muted); font-size: .82rem; line-height: 1.62; text-align: center; }
.compact-heading { margin-bottom: 40px; }
.use-cases-section { background: var(--foam); }
.use-case-list { border-top: 1px solid var(--ink); }
.use-case-list article { display: grid; grid-template-columns: 62px 1fr auto; gap: 22px; padding: 22px 12px; align-items: center; border-bottom: 1px solid var(--ink); transition: background 120ms ease, padding 120ms ease; }
.use-case-list article:hover { padding-inline: 18px 6px; background: var(--raised); }
.use-case-list > article > span { color: var(--sea-dark); font-family: var(--mono); font-size: .62rem; font-weight: 700; }
.use-case-list h3 { margin: 0 0 2px; } .use-case-list p { max-width: 670px; }
.use-case-list b { padding: 5px 9px; border: 1px solid var(--ink); background: var(--paper); color: var(--muted); font-family: var(--mono); font-size: .56rem; letter-spacing: .03em; }

.cta-section { padding: 72px 42px 82px calc(var(--rail) + 38px); background: var(--paper); }
.cta-card { position: relative; overflow: hidden; min-height: 440px; border: 1px solid var(--ink); background: var(--sea-dark); box-shadow: 7px 7px 0 var(--ink); color: #fffef9; }
.cta-card::after { position: absolute; inset: 0 0 0 auto; width: 42%; border-left: 1px solid rgb(255 254 249 / 45%); background: repeating-linear-gradient(0deg, transparent 0 21px, rgb(255 254 249 / 14%) 21px 22px), repeating-linear-gradient(90deg, transparent 0 21px, rgb(255 254 249 / 9%) 21px 22px); content: ""; }
.contour { position: absolute; z-index: 1; border: 1px solid rgb(255 254 249 / 35%); border-radius: 50%; }
.contour-one { right: -145px; bottom: -220px; width: 570px; height: 570px; }
.contour-two { right: 4px; bottom: -90px; width: 335px; height: 335px; }
.cta-content { position: relative; z-index: 2; max-width: 740px; padding: 68px; }
.cta-content .kicker { color: #9de1d6; }
.cta-content h2 { margin-bottom: 20px; font-size: clamp(2.35rem, 4.6vw, 4rem); }
.cta-content > p:not(.kicker) { max-width: 570px; color: #d0dfdb; }
.cta-actions { display: flex; margin-top: 30px; align-items: center; gap: 24px; }
.button-light { border-color: #fffef9; background: #fffef9; box-shadow: 4px 4px 0 var(--ink); color: var(--ink); }
.button-light:hover { background: var(--foam); }
.cta-docs { border-bottom: 1px solid rgb(255 254 249 / 55%); color: #fffef9; font-size: .82rem; font-weight: 710; }

.site-footer { width: min(calc(100% - 48px), var(--frame)); margin-inline: auto; border-inline: 1px solid var(--ink); background: var(--ink); color: #edf5f1; }
.site-footer .shell { width: 100%; }
.footer-main { display: grid; grid-template-columns: 1fr 1.35fr; gap: 90px; padding: 58px 42px 50px calc(var(--rail) + 38px); border-bottom: 1px solid #6e898c; }
.footer-brand .brand img { border-color: #b4cac7; }
.footer-brand p { margin-top: 16px; color: #9db1af; font-size: .76rem; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 42px; }
.footer-links div { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.footer-links strong { margin-bottom: 5px; color: #edf5f1; font-family: var(--mono); font-size: .63rem; text-transform: uppercase; }
.footer-links a { color: #9db1af; font-size: .69rem; transition: color 120ms ease; }
.footer-links a:hover:not([aria-disabled="true"]) { color: #74d9cd; }
[aria-disabled="true"] { cursor: not-allowed; opacity: .55; }
.footer-bottom { display: flex; padding: 17px 42px 23px calc(var(--rail) + 38px); align-items: center; justify-content: space-between; color: #7f999a; font-family: var(--mono); font-size: .59rem; }
.footer-bottom div { display: flex; gap: 20px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (max-width: 1000px) {
  .nav-links { display: none; }
  .hero { padding-top: 62px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-copy { max-width: 760px; }
  .product-window { width: min(100%, 650px); }
  .signal-strip { margin-top: 62px; }
  .split-heading, .event-grid, .batch-callout { grid-template-columns: 1fr; gap: 38px; }
  .process-flow { grid-template-columns: 1fr; gap: 18px; }
  .flow-arrow { width: 1px; height: 30px; margin: 0 auto; }
  .flow-arrow::after { top: auto; right: -3px; bottom: 0; transform: rotate(135deg); }
  .flow-arrow span { top: 10%; left: -3px; animation: flow-down 2.2s linear infinite; }
  @keyframes flow-down { from { top: 10%; opacity: 0; } 20%, 80% { opacity: 1; } to { top: 90%; opacity: 0; } }
  .flow-outputs { grid-template-columns: 1fr 1fr; }
  .watermark-card { max-width: 650px; }
  .guarantee-grid { grid-template-columns: 1fr 1fr; }
  .guarantee-grid article:nth-child(3) { border-left: 0; }
  .guarantee-grid article:nth-child(n + 3) { border-top: 1px solid var(--ink); }
  .footer-main { grid-template-columns: 1fr; gap: 42px; }
}

@media (max-width: 700px) {
  :root { --rail: 0px; }
  .shell, main, .site-footer { width: 100%; }
  main, .site-footer { border-inline: 0; }
  .nav { height: 60px; padding-inline: 18px; border-inline: 0; }
  .nav-actions { display: none; }
  .menu-button { display: grid; width: 38px; height: 38px; padding: 9px; place-content: center; gap: 6px; border: 1px solid var(--ink); background: var(--raised); box-shadow: 2px 2px 0 var(--ink); }
  .menu-button > span:not(.sr-only) { display: block; width: 16px; height: 1px; background: var(--ink); transition: transform 120ms ease; }
  .menu-button[aria-expanded="true"] > span:nth-child(2) { transform: translateY(3.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-3.5px) rotate(-45deg); }
  .mobile-nav { display: grid; width: 100%; gap: 0; padding: 0 18px 16px; border-bottom: 1px solid var(--ink); background: var(--paper); }
  .mobile-nav[hidden] { display: none; }
  .mobile-nav a { padding: 10px 0; border-bottom: 1px solid var(--line-soft); color: var(--ink-soft); font-family: var(--mono); font-size: .74rem; }
  .mobile-nav .mobile-cta { margin-top: 12px; border: 1px solid var(--ink); background: var(--sea-dark); color: #fffef9; font-weight: 700; text-align: center; }
  .system-band .shell { padding-inline: 18px; border-inline: 0; }
  .system-band span:nth-child(2) { display: none; }
  main > section::before { top: 15px; left: 18px; writing-mode: horizontal-tb; }
  main > section::after { display: none; }
  .hero, .section, .cta-section { padding-inline: 22px; }
  .hero { min-height: auto; padding-top: 66px; }
  h1 { font-size: clamp(2.75rem, 14vw, 4rem); }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button, .install-command { width: 100%; }
  .install-command { justify-content: center; }
  .copy-label { width: auto; }
  .code-panel { padding: 20px 16px; }
  .code-panel code { font-size: .59rem; }
  .rail-row { padding-inline: 12px; }
  .signal-strip { grid-template-columns: 1fr 1fr; gap: 12px; margin: 52px -22px 0; padding: 18px 22px; text-align: center; }
  .signal-strip i { display: none; }
  .section { padding-block: 82px; }
  .split-heading { margin-bottom: 44px; }
  .section-heading h2, .event-copy h2, .batch-copy h2, .cta-content h2 { font-size: clamp(2.15rem, 11vw, 3.2rem); }
  .principles-grid { grid-template-columns: 1fr; }
  .principles-grid article + article { border-top: 1px solid var(--ink); border-left: 0; }
  .event-grid { display: block; }
  .watermark-card { margin-top: 48px; padding-inline: 17px; }
  .watermark-head { margin-inline: -17px; }
  .gate-code { grid-template-columns: 30px 1fr; }
  .gate-open { display: none; }
  .batch-section { padding-block: 62px; }
  .batch-callout { padding: 32px 22px; }
  .guarantee-grid { grid-template-columns: 1fr; }
  .guarantee-grid article, .guarantee-grid article:nth-child(3) { min-height: 0; border-top: 1px solid var(--ink); border-left: 0; }
  .guarantee-grid article:first-child { border-top: 0; }
  .use-case-list article { grid-template-columns: 34px 1fr; gap: 10px; }
  .use-case-list b { display: none; }
  .cta-section { padding-block: 62px 70px; }
  .cta-card { min-height: 0; }
  .cta-card::after { width: 30%; }
  .cta-content { padding: 48px 25px; }
  .cta-actions { align-items: flex-start; flex-direction: column; }
  .footer-main, .footer-bottom { padding-inline: 22px; }
  .footer-links { grid-template-columns: 1fr 1fr; row-gap: 36px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 10px; }
}

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