/* Visual systems share one semantic landing-page structure. */

:root {
  color-scheme: light;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --max: 1180px;
  --measure: 68ch;
  --focus: #1546d8;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-wrap: anywhere;
}
button, a { font: inherit; }
a { color: inherit; }
button { color: inherit; }
button, summary, a { -webkit-tap-highlight-color: transparent; }
:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}
.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: .65rem 1rem;
  background: var(--text);
  color: var(--ground);
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }
.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 750;
  letter-spacing: .11em;
  line-height: 1.25;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.08; text-wrap: balance; }
h1 { margin-bottom: 1.4rem; font-family: var(--display); font-size: clamp(3rem, 7vw, 6.7rem); font-weight: var(--display-weight, 500); letter-spacing: -.045em; }
h2 { margin-bottom: 1.1rem; font-family: var(--display); font-size: clamp(2rem, 4vw, 3.8rem); font-weight: var(--display-weight, 500); letter-spacing: -.035em; }
h3 { margin-bottom: .65rem; font-size: 1.14rem; }
p { margin-bottom: 1rem; }
.lede { max-width: 60ch; color: var(--secondary); font-size: clamp(1.08rem, 2vw, 1.35rem); }
.section-intro { max-width: var(--measure); color: var(--secondary); font-size: 1.08rem; }
.small { color: var(--secondary); font-size: .82rem; }

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--ground) 93%, transparent);
}
.primary-nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.wordmark {
  font-family: var(--display);
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: -.035em;
  text-decoration: none;
}
.primary-nav ul,
.variant-links,
.footer-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.primary-nav ul { margin-left: auto; }
.primary-nav a:not(.wordmark), .footer-links a { color: var(--secondary); font-size: .88rem; text-decoration: none; }
.primary-nav a:hover, .footer-links a:hover { color: var(--text); }
.nav-cta { margin-left: .5rem; }

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--button-bg);
  border-radius: var(--button-radius);
  padding: .72rem 1.15rem;
  background: var(--button-bg);
  color: var(--button-text);
  font-weight: 720;
  line-height: 1.1;
  text-decoration: none;
  cursor: pointer;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}
.button:hover { transform: translateY(-2px); }
.button.secondary { border-color: var(--line); background: transparent; color: var(--text); }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; margin-top: 2rem; }
.availability { margin: .8rem 0 0; color: var(--secondary); font-size: .82rem; }

.variant-dock.variant-dock {
  position: fixed;
  z-index: 90;
  right: 20px;
  bottom: 20px;
  margin: 0;
  border: 0;
  padding: 0;
  background: transparent;
  color: #1d1d1b;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.4;
}
.variant-dock.variant-dock > summary {
  position: relative;
  display: block;
  margin: 0;
  border: 1px solid rgb(29 29 27 / .18);
  border-radius: 999px;
  padding: .7rem 1rem;
  background: #fff;
  box-shadow: 0 8px 28px rgb(0 0 0 / .14);
  color: #1d1d1b;
  font-family: inherit;
  font-size: 14px;
  font-weight: 680;
  letter-spacing: 0;
  line-height: 1.4;
  text-transform: none;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.variant-dock.variant-dock > summary::-webkit-details-marker { display: none; }
.variant-dock.variant-dock > summary::before,
.variant-dock.variant-dock > summary::after,
.variant-dock.variant-dock[open] > summary::before,
.variant-dock.variant-dock[open] > summary::after { content: none; }
.variant-dock.variant-dock > summary:hover { border-color: rgb(29 29 27 / .3); background: #f5f5f2; color: #1d1d1b; transform: none; }
.variant-dock.variant-dock > summary:focus-visible { outline-color: #1d1d1b; }
.variant-dock.variant-dock[open] { border: 0; padding: 0; background: transparent; }
.variant-panel {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  width: min(560px, calc(100vw - 28px));
  overflow: hidden;
  border: 1px solid rgb(29 29 27 / .16);
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 18px 60px rgb(0 0 0 / .18);
  color: #1d1d1b;
}
.variant-nav {
  width: auto;
  min-height: 0;
  display: flex;
  align-items: stretch;
  flex-direction: column;
  gap: .8rem;
  margin: 0;
  padding: 1rem;
}
.variant-group { display: grid; grid-template-columns: 64px minmax(0, 1fr); align-items: start; gap: .7rem; }
.variant-label { padding-top: .75rem; color: #6c6c67; font-size: .68rem; font-weight: 750; letter-spacing: .09em; text-transform: uppercase; }
.variant-links { display: grid; gap: .3rem; }
.variant-copy-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.variant-visual-links { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.variant-links a {
  min-width: 0;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid #d8d8d2;
  border-radius: 7px;
  padding: .42rem .35rem;
  background: #fff;
  color: #555550;
  font-family: inherit;
  font-size: .72rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  text-overflow: ellipsis;
  text-transform: none;
  white-space: nowrap;
}
.variant-links a:hover { border-color: #85857f; background: #f5f5f2; color: #1d1d1b; transform: none; }
.variant-links a[aria-current="page"] { border-color: #1d1d1b; background: #1d1d1b; color: #fff; font-weight: 720; }

.hero { padding-block: clamp(5rem, 11vw, 9rem); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(350px, .75fr); align-items: center; gap: clamp(3rem, 8vw, 7rem); }
.hero-copy { min-width: 0; }
.hero-note { max-width: 35ch; margin-top: 1.6rem; padding-left: 1rem; border-left: 2px solid var(--accent); color: var(--secondary); font-size: .88rem; }
.hero-mark { position: relative; min-height: 410px; }
.context-card {
  position: absolute;
  width: min(88%, 390px);
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  padding: 1.2rem;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.context-card:nth-child(1) { top: 1rem; left: 0; }
.context-card:nth-child(2) { top: 9rem; right: 0; }
.context-card:nth-child(3) { bottom: .5rem; left: 2rem; }
.card-kicker { display: block; margin-bottom: .55rem; color: var(--accent); font-size: .67rem; font-weight: 750; letter-spacing: .09em; text-transform: uppercase; }
.context-card strong { display: block; margin-bottom: .4rem; line-height: 1.25; }
.context-card p { margin: 0; color: var(--secondary); font-size: .82rem; line-height: 1.45; }

.landing section { scroll-margin-top: 1rem; }
.section-shell { padding-block: clamp(4.5rem, 9vw, 8rem); }
.section-shell.tinted { background: var(--section); }
.section-heading { display: grid; grid-template-columns: minmax(0, .85fr) minmax(300px, 1fr); gap: 3rem; align-items: end; margin-bottom: 3rem; }
.section-heading .section-intro { margin-bottom: .4rem; }

.media-slot { margin: 0; }
.media-frame { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: var(--media-radius); background: var(--paper); box-shadow: var(--media-shadow); }
.media-frame.screenshot { aspect-ratio: 16 / 10; }
.window-chrome { height: 42px; display: flex; align-items: center; gap: 7px; border-bottom: 1px solid var(--line); padding: 0 14px; background: var(--chrome); }
.window-chrome i { width: 8px; height: 8px; border: 1px solid var(--line); border-radius: 50%; background: var(--ground); }
.window-title { margin-left: .6rem; color: var(--secondary); font-size: .7rem; font-style: normal; }
.preview-ui { height: calc(100% - 42px); display: grid; grid-template-columns: 26% 1fr; }
.preview-sidebar { border-right: 1px solid var(--line); padding: clamp(.8rem, 2vw, 1.5rem); background: var(--section); }
.preview-label { display: block; margin-bottom: .8rem; color: var(--secondary); font-size: .62rem; font-weight: 720; letter-spacing: .08em; text-transform: uppercase; }
.source-row { display: block; width: 100%; margin: .45rem 0; border: 1px solid var(--line); border-radius: var(--small-radius); padding: .5rem .6rem; background: var(--paper); font-size: clamp(.58rem, 1.2vw, .76rem); }
.preview-main { display: grid; align-content: center; gap: clamp(.7rem, 2vw, 1.4rem); padding: clamp(1rem, 4vw, 3.5rem); }
.preview-main h3 { max-width: 20ch; margin: 0; font-family: var(--display); font-size: clamp(1.15rem, 3vw, 2.5rem); }
.preview-lines { display: grid; gap: .5rem; }
.preview-lines i { display: block; width: 92%; height: 7px; border-radius: 9px; background: var(--line); }
.preview-lines i:nth-child(2) { width: 76%; }
.preview-lines i:nth-child(3) { width: 55%; }
.proposed { width: min(100%, 430px); border-left: 3px solid var(--accent); padding: .65rem .8rem; background: var(--active-bg); font-size: clamp(.62rem, 1.4vw, .8rem); }
.media-slot figcaption { margin-top: .8rem; color: var(--secondary); font-size: .78rem; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 3rem 0 0; padding: 0; background: var(--line); list-style: none; }
.steps li { min-width: 0; padding: clamp(1.4rem, 3vw, 2.4rem); background: var(--ground); }
.step-number { display: block; margin-bottom: 2.5rem; color: var(--accent); font-family: var(--mono); font-size: .75rem; font-weight: 750; }
.steps p { margin: 0; color: var(--secondary); font-size: .92rem; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 3rem; }
.feature { border-top: 2px solid var(--accent); padding: 1.5rem 0 0; }
.feature p { color: var(--secondary); font-size: .92rem; }
.feature-tag { display: inline-flex; align-items: center; gap: .45rem; margin-bottom: 2.3rem; color: var(--secondary); font-family: var(--mono); font-size: .68rem; text-transform: uppercase; }
.feature-tag::before { width: 8px; height: 8px; background: var(--signal); content: ""; }

.open-source-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, .85fr); gap: clamp(3rem, 9vw, 8rem); align-items: start; }
.commitment { border: 1px solid var(--line); border-radius: var(--card-radius); padding: clamp(1.4rem, 4vw, 2.5rem); background: var(--paper); box-shadow: var(--shadow); }
.commitment dl { display: grid; grid-template-columns: 1fr auto; gap: 0; margin: 0; }
.commitment div { display: contents; }
.commitment dt, .commitment dd { margin: 0; border-bottom: 1px solid var(--line); padding-block: .85rem; }
.commitment dt { color: var(--secondary); }
.commitment dd { padding-left: 1rem; font-weight: 720; text-align: right; }
.commitment div:last-child dt, .commitment div:last-child dd { border-bottom: 0; }

.video-frame { aspect-ratio: 16 / 9; display: grid; place-items: center; text-align: center; }
.video-message { max-width: 34ch; padding: 2rem; }
.video-glyph { width: 58px; height: 58px; display: grid; place-items: center; margin: 0 auto 1.2rem; border: 1px solid var(--accent); border-radius: 50%; color: var(--accent); font-size: 1.2rem; }
.video-message h2 { display: block; margin-bottom: .5rem; font-family: var(--display); font-size: clamp(1.25rem, 3vw, 2rem); }
.video-message p { margin: 0; color: var(--secondary); font-size: .86rem; }

.faq-list { max-width: 820px; margin-top: 2.5rem; border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { position: relative; padding: 1.35rem 3rem 1.35rem 0; font-weight: 720; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { position: absolute; right: .4rem; content: "+"; color: var(--accent); font-size: 1.4rem; font-weight: 400; }
details[open] summary::after { content: "−"; }
details p { max-width: var(--measure); padding: 0 2rem 1.4rem 0; color: var(--secondary); }

.final-cta { padding-block: clamp(5rem, 12vw, 10rem); text-align: center; }
.final-cta h2 { max-width: 16ch; margin-inline: auto; }
.final-cta .lede { margin-inline: auto; }
.final-cta .actions { justify-content: center; }
.site-footer { border-top: 1px solid var(--line); padding-block: 2.5rem; }
.footer-row { display: flex; justify-content: space-between; align-items: center; gap: 2rem; }
.footer-row p { margin: 0; color: var(--secondary); font-size: .78rem; }

/* Quiet Context */
.brand-quiet {
  --ground: #F9F6EF;
  --section: #EEE9E0;
  --paper: #FEFDF9;
  --text: #292621;
  --secondary: #716B61;
  --accent: #B84F33;
  --signal: #B84F33;
  --line: #D9D0C2;
  --chrome: #F6F1E8;
  --variant-bg: #F3EFE7;
  --active-bg: #EEE1D8;
  --button-bg: #B84F33;
  --button-text: #fffaf4;
  --display: "New York", "Iowan Old Style", Charter, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
  --display-weight: 500;
  --button-radius: 999px;
  --small-radius: 9px;
  --card-radius: 18px;
  --media-radius: 20px;
  --shadow: 0 18px 45px rgb(61 49 34 / .07);
  --media-shadow: 0 25px 70px rgb(61 49 34 / .08);
}
.brand-quiet .hero-grid { grid-template-columns: minmax(0, 1.18fr) minmax(350px, .62fr); }
.brand-quiet .hero-copy { padding-left: min(5vw, 4rem); }
.brand-quiet .context-card:nth-child(2) { transform: rotate(1deg); }
.brand-quiet .section-heading > :first-child { padding-left: min(4vw, 3rem); }
.brand-quiet .media-slot { width: 94%; margin-left: auto; }
.brand-quiet .features { gap: 2.2rem; }
.brand-quiet .feature { padding: 1.8rem 1rem 0; }
.brand-quiet .steps { border-radius: 16px; overflow: hidden; }

/* Context Ledger */
.brand-ledger {
  --ground: #F2F1EC;
  --section: #E7E9E4;
  --paper: #FCFCF8;
  --text: #17211D;
  --secondary: #5D6963;
  --accent: #174C3C;
  --signal: #B9E769;
  --line: #BCC4BD;
  --chrome: #E8EBE7;
  --variant-bg: #E8E9E4;
  --active-bg: #DDEBC9;
  --button-bg: #174C3C;
  --button-text: #FCFCF8;
  --display: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --display-weight: 600;
  --button-radius: 3px;
  --small-radius: 2px;
  --card-radius: 4px;
  --media-radius: 4px;
  --shadow: none;
  --media-shadow: none;
  --focus: #174C3C;
}
.brand-ledger { letter-spacing: -.005em; }
.brand-ledger .site-header { background: var(--ground); }
.brand-ledger .primary-nav { min-height: 62px; }
.brand-ledger .wordmark::before { margin-right: .55rem; color: var(--signal); content: "■"; font-size: .58rem; vertical-align: .15rem; }
.brand-ledger h1 { max-width: 12ch; font-size: clamp(3rem, 6.3vw, 6rem); }
.brand-ledger .hero { padding-top: 6rem; }
.brand-ledger .hero-grid { align-items: stretch; }
.brand-ledger .hero-copy { border-left: 1px solid var(--line); padding-left: 1.5rem; }
.brand-ledger .hero-mark { border: 1px solid var(--line); min-height: 390px; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 25% 25%; }
.brand-ledger .context-card { border-color: var(--text); }
.brand-ledger .context-card:nth-child(1) { top: 2rem; left: 1.5rem; }
.brand-ledger .context-card:nth-child(2) { top: 9rem; right: 1.5rem; }
.brand-ledger .context-card:nth-child(3) { bottom: 2rem; left: 3rem; }
.brand-ledger .section-shell { position: relative; border-top: 1px solid var(--line); }
.brand-ledger .section-shell[data-section]::before {
  position: absolute;
  top: 1rem;
  left: max(20px, calc((100vw - var(--max)) / 2));
  color: var(--accent);
  content: attr(data-section);
  font-family: var(--mono);
  font-size: .7rem;
  font-weight: 700;
}
.brand-ledger .section-heading { align-items: start; border-bottom: 1px solid var(--line); padding-bottom: 2rem; }
.brand-ledger .preview-ui { grid-template-columns: 23% 1fr; }
.brand-ledger .steps li { background: var(--paper); }
.brand-ledger .feature { border: 1px solid var(--line); padding: 1.25rem; background: var(--paper); }
.brand-ledger .feature-tag { margin-bottom: 3.5rem; }
.brand-ledger .commitment { border-color: var(--text); }
.brand-ledger .video-glyph { border-radius: 2px; background: var(--signal); color: var(--text); }

/* Living Index */
.brand-index {
  --ground: #E8E3D8;
  --section: #DCD5C8;
  --paper: #FFFDF4;
  --text: #171717;
  --secondary: #5E5A52;
  --accent: #1546D8;
  --signal: #D7F24B;
  --line: #A8A297;
  --chrome: #E9E4D9;
  --variant-bg: #DED8CB;
  --active-bg: #D7F24B;
  --button-bg: #1546D8;
  --button-text: #FFFDF4;
  --display: Fraunces, "Iowan Old Style", Georgia, serif;
  --sans: Archivo, "Arial Narrow", Arial, sans-serif;
  --mono: "Archivo", ui-monospace, monospace;
  --display-weight: 650;
  --button-radius: 3px;
  --small-radius: 2px;
  --card-radius: 3px;
  --media-radius: 3px;
  --shadow: 7px 7px 0 #171717;
  --media-shadow: 10px 10px 0 #171717;
  --focus: #1546D8;
}
.brand-index .lede,
.brand-index .section-intro,
.brand-index .steps p,
.brand-index .feature p,
.brand-index details p,
.brand-index .hero-note,
.brand-index .video-message p {
  font-family: "Avenir Next", Avenir, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  letter-spacing: .006em;
}
.brand-index .button {
  font-family: "Avenir Next", Avenir, "Helvetica Neue", Arial, sans-serif;
}
.brand-index .site-header { border-bottom: 2px solid var(--text); background: var(--ground); }
.brand-index .wordmark { border-bottom: 5px solid var(--signal); }
.brand-index h1 { max-width: 11ch; font-size: clamp(3.4rem, 7.2vw, 7rem); }
.brand-index .eyebrow { display: inline-block; transform: rotate(-1deg); padding: .28rem .5rem; background: var(--signal); color: var(--text); }
.brand-index .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(350px, .78fr); }
.brand-index .hero-mark { min-height: 445px; }
.brand-index .context-card { border: 2px solid var(--text); }
.brand-index .context-card:nth-child(1) { transform: rotate(-2deg); }
.brand-index .context-card:nth-child(2) { transform: rotate(2deg); border-color: var(--accent); }
.brand-index .context-card:nth-child(3) { transform: rotate(-1deg); border-color: #F0643B; }
.brand-index .hero-note { border-left-width: 7px; border-color: #F0643B; }
.brand-index .section-shell { border-top: 2px solid var(--text); }
.brand-index .section-heading h2 { transform: translateX(-.3rem); }
.brand-index .media-frame { border: 2px solid var(--text); }
.brand-index .window-chrome { border-bottom: 2px solid var(--text); }
.brand-index .source-row { border: 1px solid var(--text); }
.brand-index .proposed { border: 2px solid var(--text); border-left: 8px solid #F0643B; }
.brand-index .steps { gap: 1rem; background: transparent; }
.brand-index .steps li { border: 2px solid var(--text); background: var(--paper); box-shadow: 5px 5px 0 var(--text); }
.brand-index .steps li:nth-child(2) { transform: translateY(1rem); }
.brand-index .feature { border: 2px solid var(--text); padding: 1.25rem; background: var(--paper); box-shadow: 5px 5px 0 #F0643B; }
.brand-index .feature:nth-child(2) { transform: translateY(1.2rem); box-shadow: 5px 5px 0 var(--accent); }
.brand-index .feature:nth-child(3) { box-shadow: 5px 5px 0 var(--signal); }
.brand-index .feature-tag { margin-bottom: 3rem; }
.brand-index .commitment { border: 2px solid var(--text); }
.brand-index .video-glyph { border: 2px solid var(--text); border-radius: 2px; background: var(--signal); color: var(--text); box-shadow: 4px 4px 0 var(--text); }
.brand-index summary::after { color: #F0643B; }

/* Context Atlas */
.brand-atlas {
  --ground: #F3EBDD;
  --section: #E8DECD;
  --paper: #FBF6EC;
  --text: #0B2239;
  --secondary: #52616B;
  --accent: #E45224;
  --signal: #E45224;
  --line: #CFC4B2;
  --chrome: #0B2239;
  --variant-bg: #E8DECD;
  --active-bg: #F2D5C6;
  --button-bg: #0B2239;
  --button-text: #FBF6EC;
  --display: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --sans: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, monospace;
  --display-weight: 650;
  --button-radius: 2px;
  --small-radius: 1px;
  --card-radius: 1px;
  --media-radius: 1px;
  --shadow: none;
  --media-shadow: none;
  --focus: #E45224;
}
.brand-atlas .site-header { background: var(--ground); }
.brand-atlas .primary-nav { min-height: 66px; }
.brand-atlas .wordmark { letter-spacing: -.02em; }
.brand-atlas .wordmark::before {
  width: 13px;
  height: 13px;
  display: inline-block;
  margin-right: .65rem;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  content: "";
}
.brand-atlas .button { transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease; }
.brand-atlas .button:hover { transform: none; background: #183A55; }
.brand-atlas .button.secondary:hover { border-color: var(--text); background: var(--paper); }
.brand-atlas h1 { max-width: 10.5ch; font-size: clamp(3.2rem, 6.4vw, 6.1rem); }
.brand-atlas h2 { color: #0B2239; }
.brand-atlas .eyebrow { color: #B93613; }
.brand-atlas .hero { padding-block: clamp(5rem, 9vw, 7.5rem); }
.brand-atlas .hero-grid { grid-template-columns: minmax(0, 7fr) minmax(390px, 5fr); gap: clamp(2rem, 5vw, 5rem); }
.brand-atlas .hero-note { border-left: 0; border-top: 1px solid #B8AE9D; padding: .85rem 0 0 1.5rem; }
.brand-atlas .hero-note::before { display: inline-block; width: 8px; height: 14px; margin: 0 .7rem 0 -1.5rem; background: var(--accent); content: ""; vertical-align: -.15rem; }
.brand-atlas .hero-mark {
  min-height: 470px;
  overflow: hidden;
  border: 1px solid #183A55;
  background-color: #0B2239;
  background-image:
    repeating-radial-gradient(ellipse at 88% 18%, transparent 0 34px, rgb(184 174 157 / .14) 35px 36px, transparent 37px 57px),
    repeating-radial-gradient(ellipse at 8% 92%, transparent 0 42px, rgb(184 174 157 / .12) 43px 44px, transparent 45px 70px);
}
.brand-atlas .hero-mark::before {
  position: absolute;
  z-index: 0;
  top: 19%;
  left: 19%;
  width: 56%;
  height: 57%;
  border-left: 1px solid #E45224;
  border-bottom: 1px solid #E45224;
  border-right: 1px solid #E45224;
  content: "";
  transform-origin: top left;
  animation: atlas-route 900ms ease-out both;
}
.brand-atlas .hero-mark::after {
  position: absolute;
  right: 20px;
  bottom: 18px;
  width: 72px;
  height: 7px;
  border-left: 1px solid #FBF6EC;
  border-right: 1px solid #FBF6EC;
  border-bottom: 1px solid #FBF6EC;
  content: "";
}
@keyframes atlas-route { from { opacity: 0; transform: scaleY(.35); } to { opacity: 1; transform: scaleY(1); } }
.brand-atlas .context-card {
  z-index: 1;
  width: 52%;
  border: 0;
  border-top: 1px solid rgb(251 246 236 / .45);
  padding: .75rem .4rem .35rem 1.2rem;
  background: #0B2239;
  color: #FBF6EC;
}
.brand-atlas .context-card::before {
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border: 2px solid #E45224;
  background: #0B2239;
  content: "";
}
.brand-atlas .context-card:nth-child(1) { top: 16%; left: 8%; }
.brand-atlas .context-card:nth-child(2) { top: 43%; right: 7%; }
.brand-atlas .context-card:nth-child(3) { top: auto; bottom: 15%; left: 12%; }
.brand-atlas .card-kicker { color: #B8AE9D; font-family: var(--mono); }
.brand-atlas .context-card p { color: #BFC9D0; }
.brand-atlas .section-shell { position: relative; border-top: 1px solid #CFC4B2; }
.brand-atlas .section-shell[data-section]::before {
  position: absolute;
  top: 1.15rem;
  left: max(20px, calc((100vw - var(--max)) / 2));
  color: #52616B;
  content: attr(data-section);
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .08em;
}
.brand-atlas .section-shell[data-section]::after {
  position: absolute;
  top: 0;
  left: max(20px, calc((100vw - var(--max)) / 2));
  width: 28px;
  height: 5px;
  background: #E45224;
  content: "";
}
.brand-atlas .section-heading { grid-template-columns: repeat(12, 1fr); align-items: start; border-bottom: 1px solid #B8AE9D; padding-bottom: 2rem; }
.brand-atlas .section-heading > :first-child { grid-column: 1 / span 6; }
.brand-atlas .section-heading > .section-intro { grid-column: 7 / -1; }
.brand-atlas .media-frame { border: 8px solid #0B2239; }
.brand-atlas .window-chrome { height: 38px; border-color: #183A55; background: #0B2239; }
.brand-atlas .window-chrome i { display: none; }
.brand-atlas .window-title { margin-left: 0; color: #FBF6EC; font-family: var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.brand-atlas .preview-ui { height: calc(100% - 38px); }
.brand-atlas .preview-sidebar { background: #E8DECD; }
.brand-atlas .source-row { border-left: 3px solid #E45224; }
.brand-atlas .steps { position: relative; gap: 0; background: transparent; }
.brand-atlas .steps::before { position: absolute; top: 2rem; right: 0; left: 0; height: 1px; background: #B8AE9D; content: ""; }
.brand-atlas .steps li { position: relative; padding-top: 3.4rem; background: transparent; }
.brand-atlas .steps li::before { position: absolute; z-index: 1; top: 1.68rem; left: 2.4rem; width: 9px; height: 9px; border: 2px solid #E45224; background: #F3EBDD; content: ""; }
.brand-atlas .step-number { margin-bottom: 1.2rem; }
.brand-atlas .features { gap: 1rem; }
.brand-atlas .feature { border: 1px solid #B8AE9D; padding: 1.35rem; background: #FBF6EC; }
.brand-atlas .feature::before { display: block; width: 28px; height: 5px; margin: -1.35rem 0 1.2rem; background: #E45224; content: ""; }
.brand-atlas .feature-tag { margin-bottom: 2.4rem; }
.brand-atlas .commitment { border: 0; background: #0B2239; color: #FBF6EC; }
.brand-atlas .commitment dt { color: #BFC9D0; }
.brand-atlas .commitment dt,
.brand-atlas .commitment dd { border-color: #365069; }
.brand-atlas .video-frame { border: 0; background: #0B2239; color: #FBF6EC; }
.brand-atlas .video-glyph { border: 0; border-radius: 0; background: #E45224; color: #FBF6EC; }
.brand-atlas .video-message p { color: #BFC9D0; }
.brand-atlas .final-cta { background: #0B2239; color: #FBF6EC; text-align: left; }
.brand-atlas .final-cta h2,
.brand-atlas .final-cta .lede { margin-inline: 0; color: inherit; }
.brand-atlas .final-cta .lede,
.brand-atlas .final-cta .availability { color: #BFC9D0; }
.brand-atlas .final-cta .actions { justify-content: flex-start; }
.brand-atlas .final-cta .eyebrow { color: #B8AE9D; }
.brand-atlas .final-cta .button { border-color: #B93613; background: #B93613; }

/* Macintosh Field Manual */
.brand-manual {
  --ground: #F6F2E8;
  --section: #EDE8DD;
  --paper: #FFFDF7;
  --text: #26282B;
  --secondary: #5D6168;
  --accent: #145BD7;
  --signal: #145BD7;
  --line: #C9C5BC;
  --chrome: #EDE8DD;
  --variant-bg: #EDE8DD;
  --active-bg: #E5EEFC;
  --button-bg: #145BD7;
  --button-text: #FFFDF7;
  --display: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", sans-serif;
  --sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, monospace;
  --display-weight: 680;
  --button-radius: 9px;
  --small-radius: 7px;
  --card-radius: 9px;
  --media-radius: 10px;
  --shadow: none;
  --media-shadow: 0 20px 55px rgb(38 40 43 / .12);
  --focus: #145BD7;
}
.brand-manual .site-header { background: rgb(246 242 232 / .96); }
.brand-manual .primary-nav { min-height: 64px; }
.brand-manual .wordmark::after { display: inline-block; width: 6px; height: 6px; margin-left: .55rem; border-radius: 50%; background: #145BD7; content: ""; vertical-align: .16rem; }
.brand-manual h1 { max-width: 11ch; font-size: clamp(3rem, 6vw, 5.75rem); }
.brand-manual .button { transition: background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease; }
.brand-manual .button:hover { transform: none; background: #0F4EBE; box-shadow: 0 3px 10px rgb(20 91 215 / .18); }
.brand-manual .button.secondary:hover { background: #FFFDF7; box-shadow: none; }
.brand-manual .hero { padding-block: clamp(4.5rem, 8vw, 7rem); }
.brand-manual .hero-grid { grid-template-columns: minmax(0, 5fr) minmax(430px, 7fr); gap: clamp(2.5rem, 5vw, 5rem); }
.brand-manual .hero-note { border-left: 0; border-radius: 8px; padding: 1rem; background: #EDE8DD; }
.brand-manual .hero-mark {
  min-height: 460px;
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(150px, 1fr);
  grid-template-rows: 64px 1fr;
  gap: 0;
  overflow: hidden;
  border: 1px solid #989BA0;
  border-radius: 10px;
  padding-top: 38px;
  background: #FFFDF7;
  box-shadow: 0 22px 65px rgb(38 40 43 / .13);
}
.brand-manual .hero-mark::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 37px;
  border-bottom: 1px solid #C9C5BC;
  background: #EDE8DD;
  content: "";
}
.brand-manual .hero-mark::after {
  position: absolute;
  top: 13px;
  left: 16px;
  width: 22px;
  height: 12px;
  border-top: 1px solid #5D6168;
  border-left: 1px solid #5D6168;
  content: "";
  box-shadow: -3px -3px 0 -2px #145BD7;
}
.brand-manual .context-card {
  position: relative;
  inset: auto;
  width: auto;
  border: 0;
  border-radius: 0;
  padding: 1.2rem;
  background: #FFFDF7;
  box-shadow: none;
}
.brand-manual .context-card:nth-child(1) { grid-column: 1 / -1; grid-row: 1; border-bottom: 1px solid #C9C5BC; background: #E5EEFC; }
.brand-manual .context-card:nth-child(2) { grid-column: 1; grid-row: 2; display: grid; align-content: center; padding: clamp(1.5rem, 4vw, 3rem); }
.brand-manual .context-card:nth-child(3) { grid-column: 2; grid-row: 2; border-left: 1px solid #C9C5BC; background: #F6F2E8; }
.brand-manual .card-kicker { color: #145BD7; font-family: var(--mono); }
.brand-manual .section-shell { position: relative; border-top: 1px solid #C9C5BC; }
.brand-manual .section-shell[data-section]::before {
  position: absolute;
  top: 1.1rem;
  left: max(20px, calc((100vw - var(--max)) / 2));
  width: 22px;
  height: 16px;
  border-top: 1px solid #5D6168;
  border-left: 1px solid #5D6168;
  content: "";
}
.brand-manual .section-shell[data-section]::after {
  position: absolute;
  top: .92rem;
  left: max(37px, calc((100vw - var(--max)) / 2 + 17px));
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #145BD7;
  content: "";
}
.brand-manual .section-heading { position: relative; grid-template-columns: repeat(12, 1fr); align-items: start; padding-top: .7rem; }
.brand-manual .section-heading > :first-child { grid-column: 1 / span 6; }
.brand-manual .section-heading > .section-intro { grid-column: 7 / -1; }
.brand-manual .section-heading::before { position: absolute; top: -1.2rem; right: 0; left: 0; border-top: 1px solid #C9C5BC; content: ""; }
.brand-manual .media-frame { border-color: #989BA0; box-shadow: 0 20px 55px rgb(38 40 43 / .12); }
.brand-manual .window-chrome { background: #EDE8DD; }
.brand-manual .window-chrome i { border-radius: 2px; background: #FFFDF7; }
.brand-manual .source-row { border: 0; border-bottom: 1px solid #C9C5BC; border-radius: 0; background: transparent; }
.brand-manual .proposed { border-left: 3px solid #145BD7; border-radius: 7px; background: #E5EEFC; }
.brand-manual .steps { gap: 0; overflow: hidden; border: 1px solid #C9C5BC; border-radius: 9px; background: #FFFDF7; }
.brand-manual .steps li { border-right: 1px solid #C9C5BC; background: #FFFDF7; }
.brand-manual .steps li:last-child { border-right: 0; }
.brand-manual .step-number { margin-bottom: 1.4rem; color: #145BD7; }
.brand-manual .features { grid-template-columns: 1fr; gap: 0; overflow: hidden; border: 1px solid #C9C5BC; border-radius: 9px; background: #FFFDF7; }
.brand-manual .feature { display: grid; grid-template-columns: 2fr 3fr 6fr; gap: 1.5rem; align-items: start; border: 0; border-bottom: 1px solid #C9C5BC; padding: 1.4rem; }
.brand-manual .feature:last-child { border-bottom: 0; }
.brand-manual .feature-tag { margin: .15rem 0 0; color: #145BD7; }
.brand-manual .feature p { margin: 0; }
.brand-manual .commitment { padding: 1rem 1.4rem; border-color: #989BA0; box-shadow: none; }
.brand-manual .commitment dt,
.brand-manual .commitment dd { padding-block: .65rem; }
.brand-manual .video-glyph { border: 0; border-radius: 8px; background: #145BD7; color: #FFFDF7; }
.brand-manual .final-cta { background: #F6F2E8; text-align: left; }
.brand-manual .final-cta .container { border-top: 1px solid #989BA0; border-bottom: 1px solid #989BA0; padding-block: clamp(3rem, 7vw, 5rem); }
.brand-manual .final-cta h2,
.brand-manual .final-cta .lede { margin-inline: 0; }
.brand-manual .final-cta .actions { justify-content: flex-start; }

/* Swiss Personal OS */
.brand-swiss {
  --ground: #F3F0E7;
  --section: #E8E4DA;
  --paper: #FFFEF8;
  --text: #0B0B0A;
  --secondary: #595851;
  --accent: #E43D18;
  --signal: #E43D18;
  --line: #BBB7AD;
  --chrome: #FFFEF8;
  --variant-bg: #E8E4DA;
  --active-bg: #F7D8CE;
  --button-bg: #0B0B0A;
  --button-text: #FFFEF8;
  --display: "Inter Tight", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --sans: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --display-weight: 800;
  --button-radius: 0;
  --small-radius: 0;
  --card-radius: 0;
  --media-radius: 0;
  --shadow: none;
  --media-shadow: none;
  --focus: #E43D18;
}
.brand-swiss { line-height: 1.48; }
.brand-swiss .site-header { border-bottom: 2px solid #0B0B0A; background: #F3F0E7; }
.brand-swiss .primary-nav { min-height: 60px; }
.brand-swiss .wordmark { font-size: 1.45rem; font-weight: 850; text-transform: uppercase; }
.brand-swiss .button { border-width: 2px; transition: background-color 140ms linear, border-color 140ms linear; }
.brand-swiss .button:hover { border-color: #E43D18; background: #E43D18; transform: none; }
.brand-swiss .button.secondary:hover { color: #FFFEF8; }
.brand-swiss h1 { max-width: 9ch; font-size: clamp(4rem, 8.4vw, 8.5rem); line-height: .87; letter-spacing: -.065em; }
.brand-swiss h2 { font-size: clamp(2.7rem, 5.2vw, 5.3rem); line-height: .95; letter-spacing: -.055em; }
.brand-swiss h3 { font-family: var(--display); font-weight: 760; }
.brand-swiss .eyebrow { color: #0B0B0A; font-family: var(--mono); font-weight: 600; }
.brand-swiss .hero { padding-block: clamp(4rem, 8vw, 7rem); }
.brand-swiss .hero-grid { grid-template-columns: minmax(0, 8fr) minmax(350px, 4fr); align-items: stretch; gap: clamp(2rem, 4vw, 4rem); }
.brand-swiss .hero-copy { display: flex; align-items: flex-start; flex-direction: column; }
.brand-swiss .hero-copy .lede { max-width: 50ch; }
.brand-swiss .hero-note { max-width: 48ch; margin-top: auto; border-left: 0; border-top: 2px solid #0B0B0A; padding: 1rem 0 0; }
.brand-swiss .hero-mark {
  min-height: 540px;
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  border: 2px solid #0B0B0A;
  background: #FFFEF8;
  counter-reset: protocol;
}
.brand-swiss .hero-mark::before {
  position: absolute;
  z-index: 1;
  top: 22px;
  left: 22px;
  width: 46px;
  height: 46px;
  border-left: 2px solid #0B0B0A;
  border-bottom: 2px solid #0B0B0A;
  content: "";
}
.brand-swiss .hero-mark::after {
  position: absolute;
  z-index: 2;
  top: 62px;
  left: 62px;
  width: 10px;
  height: 10px;
  background: #E43D18;
  content: "";
}
.brand-swiss .context-card {
  position: relative;
  inset: auto;
  width: auto;
  display: grid;
  grid-template-columns: 68px 1fr;
  align-content: end;
  border: 0;
  border-bottom: 2px solid #0B0B0A;
  padding: 1.3rem;
  padding-left: 84px;
  background: transparent;
  box-shadow: none;
  counter-increment: protocol;
}
.brand-swiss .context-card:last-child { border-bottom: 0; background: #F7D8CE; }
.brand-swiss .context-card::before { position: absolute; top: 1rem; left: 1rem; content: "0" counter(protocol); font-family: var(--display); font-size: 2.5rem; font-weight: 800; line-height: 1; }
.brand-swiss .context-card:last-child::after { position: absolute; top: 0; right: 0; width: 12px; height: 100%; background: #E43D18; content: ""; }
.brand-swiss .card-kicker,
.brand-swiss .context-card strong,
.brand-swiss .context-card p { grid-column: 2; }
.brand-swiss .card-kicker { color: #0B0B0A; font-family: var(--mono); }
.brand-swiss .section-shell { position: relative; border-top: 2px solid #0B0B0A; }
.brand-swiss .section-shell[data-section]::before {
  position: absolute;
  top: .7rem;
  left: max(14px, calc((100vw - var(--max)) / 2));
  color: #E43D18;
  content: attr(data-section);
  font-family: var(--display);
  font-size: clamp(2.8rem, 6vw, 6rem);
  font-weight: 850;
  line-height: 1;
  letter-spacing: -.05em;
  opacity: .95;
}
.brand-swiss .section-heading { grid-template-columns: repeat(12, 1fr); align-items: start; margin-top: 4rem; border-top: 2px solid #0B0B0A; padding-top: 1.4rem; }
.brand-swiss .section-heading > :first-child { grid-column: 1 / span 7; }
.brand-swiss .section-heading > .section-intro { grid-column: 8 / -1; }
.brand-swiss .media-frame { border: 2px solid #0B0B0A; }
.brand-swiss .window-chrome { border-bottom: 2px solid #0B0B0A; background: #FFFEF8; }
.brand-swiss .window-chrome i { border-radius: 0; border-color: #0B0B0A; }
.brand-swiss .window-title { color: #0B0B0A; font-family: var(--mono); }
.brand-swiss .preview-sidebar { border-right: 2px solid #0B0B0A; background: #E8E4DA; }
.brand-swiss .source-row { border: 0; border-top: 1px solid #0B0B0A; background: transparent; }
.brand-swiss .proposed { border: 2px solid #0B0B0A; border-left: 12px solid #E43D18; background: #F7D8CE; }
.brand-swiss .steps { grid-template-columns: 1fr; gap: 0; border-top: 2px solid #0B0B0A; background: transparent; }
.brand-swiss .steps li { display: grid; grid-template-columns: 1fr 4fr 6fr; gap: 1.5rem; align-items: start; border-bottom: 1px solid #0B0B0A; padding: 1.5rem 0; background: transparent; }
.brand-swiss .step-number { margin: 0; color: #0B0B0A; font-size: 1rem; }
.brand-swiss .steps h3,
.brand-swiss .steps p { margin: 0; }
.brand-swiss .features { grid-template-columns: 1fr; gap: 0; border-top: 2px solid #0B0B0A; }
.brand-swiss .feature { display: grid; grid-template-columns: 2fr 4fr 6fr; gap: 1.5rem; align-items: start; border: 0; border-bottom: 1px solid #0B0B0A; padding: 1.5rem 0; }
.brand-swiss .feature-tag,
.brand-swiss .feature h3,
.brand-swiss .feature p { margin: 0; }
.brand-swiss #open-source { background: #0B0B0A; color: #FFFEF8; }
.brand-swiss #open-source::before { color: #E43D18; }
.brand-swiss #open-source h2,
.brand-swiss #open-source .lede,
.brand-swiss #open-source .small { color: #FFFEF8; }
.brand-swiss #open-source .eyebrow { color: #F7D8CE; }
.brand-swiss .commitment { border: 2px solid #FFFEF8; background: #0B0B0A; color: #FFFEF8; }
.brand-swiss .commitment dt { color: #BBB7AD; }
.brand-swiss .commitment dt,
.brand-swiss .commitment dd { border-color: #595851; }
.brand-swiss .video-frame { border: 0; background: #0B0B0A; color: #FFFEF8; }
.brand-swiss .video-glyph { border: 0; border-radius: 0; background: #E43D18; color: #FFFEF8; }
.brand-swiss .video-message p { color: #BBB7AD; }
.brand-swiss .faq-list { max-width: none; border-top: 2px solid #0B0B0A; }
.brand-swiss details { border-bottom-color: #0B0B0A; }
.brand-swiss .final-cta { border-top: 2px solid #0B0B0A; border-bottom: 2px solid #0B0B0A; background: #F3F0E7; text-align: left; }
.brand-swiss .final-cta .container { display: grid; grid-template-columns: repeat(12, 1fr); gap: 1rem; }
.brand-swiss .final-cta .eyebrow,
.brand-swiss .final-cta h2,
.brand-swiss .final-cta .lede,
.brand-swiss .final-cta .actions,
.brand-swiss .final-cta .availability { grid-column: 1 / span 8; margin-inline: 0; }
.brand-swiss .final-cta .actions { justify-content: flex-start; }

/* Launcher */
.launcher { min-height: 100vh; padding: 3rem 0 5rem; background: #f2f1ec; color: #17211d; font-family: "IBM Plex Sans", system-ui, sans-serif; }
.launcher main { width: min(calc(100% - 40px), 1120px); margin-inline: auto; }
.launcher h1 { max-width: none; margin: 1.5rem 0 .6rem; font-family: inherit; font-size: clamp(2.2rem, 6vw, 4rem); font-weight: 650; }
.launcher .intro { max-width: 60ch; color: #5d6963; }
.launcher-groups { display: grid; gap: 1.5rem; margin-top: 3rem; }
.launcher-group { display: grid; grid-template-columns: minmax(150px, .25fr) minmax(0, 1fr); gap: 1.5rem; border-top: 1px solid #bcc4bd; padding-top: 1.5rem; }
.launcher-group h2 { margin: .2rem 0 0; font-family: inherit; font-size: 1.65rem; font-weight: 650; letter-spacing: -.02em; }
.launcher-count { margin: 0; color: #5d6963; font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.launcher-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .65rem; margin: 0; padding: 0; list-style: none; }
.launcher-list a { min-height: 78px; display: flex; align-items: flex-start; flex-direction: column; justify-content: center; border: 1px solid #bcc4bd; padding: .8rem .9rem; background: #fcfcf8; color: #17211d; text-decoration: none; }
.launcher-list a:hover { border-color: #174c3c; background: #f7f8f3; }
.launcher-list strong { font-size: .88rem; line-height: 1.25; }
.launcher-list span { margin-top: .25rem; color: #5d6963; font-size: .72rem; }

@media (max-width: 850px) {
  .primary-nav ul { display: none; }
  .nav-cta { margin-left: auto; }
  .variant-nav { min-width: 0; align-items: flex-start; flex-direction: column; gap: .5rem; padding-block: .7rem; }
  .brand-quiet .hero-grid,
  .brand-ledger .hero-grid,
  .brand-index .hero-grid,
  .brand-atlas .hero-grid,
  .brand-manual .hero-grid,
  .brand-swiss .hero-grid,
  .section-heading,
  .open-source-grid { grid-template-columns: minmax(0, 1fr); }
  .hero { padding-top: 4.5rem; }
  .hero-mark { width: min(100%, 540px); min-height: 390px; margin-inline: auto; }
  .section-heading { gap: 1rem; }
  .steps, .features { grid-template-columns: 1fr; }
  .steps { gap: 1px; }
  .features { gap: 2rem; }
  .brand-index .steps, .brand-index .features { gap: 1.5rem; }
  .brand-index .steps li:nth-child(2), .brand-index .feature:nth-child(2) { transform: none; }
  .brand-quiet .hero-copy, .brand-quiet .section-heading > :first-child { padding-left: 0; }
  .brand-quiet .media-slot { width: 100%; }
  .brand-atlas .section-heading > :first-child,
  .brand-atlas .section-heading > .section-intro,
  .brand-manual .section-heading > :first-child,
  .brand-manual .section-heading > .section-intro,
  .brand-swiss .section-heading > :first-child,
  .brand-swiss .section-heading > .section-intro { grid-column: 1; }
  .brand-atlas .steps { gap: 1px; }
  .brand-atlas .steps::before { top: 0; bottom: 0; left: 2rem; width: 1px; height: auto; }
  .brand-atlas .steps li { padding-left: 4rem; }
  .brand-atlas .steps li::before { top: 2rem; left: 1.68rem; }
  .brand-manual .feature { grid-template-columns: minmax(120px, 2fr) minmax(160px, 3fr) 5fr; }
}

@media (max-width: 560px) {
  html, body { max-width: 100%; overflow-x: hidden; }
  .container { width: min(calc(100% - 28px), var(--max)); }
  h1 { font-size: clamp(2.75rem, 14vw, 4.25rem); }
  h2 { font-size: clamp(2rem, 10vw, 3rem); }
  .primary-nav { min-height: 62px; }
  .nav-cta { display: none; }
  .variant-dock { right: 10px; bottom: 10px; }
  .variant-panel { width: min(560px, calc(100vw - 20px)); }
  .variant-group { width: 100%; min-width: 0; grid-template-columns: 1fr; align-items: start; gap: .25rem; }
  .variant-label { padding-top: 0; }
  .variant-links,
  .variant-copy-links,
  .variant-visual-links { width: 100%; min-width: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .25rem; }
  .variant-links a { min-width: 0; min-height: 44px; overflow: hidden; padding: .38rem .15rem; font-size: .68rem; text-align: center; text-overflow: ellipsis; white-space: nowrap; }
  .hero-grid > *, .hero-copy, .section-heading > *, .open-source-grid > * { min-width: 0; max-width: 100%; }
  .actions { align-items: stretch; flex-direction: column; }
  .actions .button { width: 100%; max-width: 100%; padding-inline: .8rem; text-align: center; white-space: normal; }
  .brand-ledger .hero-copy { padding-left: 1rem; }
  .hero-mark { min-height: 340px; }
  .context-card { padding: .85rem; }
  .context-card:nth-child(1) { top: 0; }
  .context-card:nth-child(2) { top: 7rem; }
  .context-card:nth-child(3) { bottom: 0; left: 1rem; }
  .brand-ledger .context-card:nth-child(1) { top: 1rem; left: .7rem; }
  .brand-ledger .context-card:nth-child(2) { top: 7.5rem; right: .7rem; }
  .brand-ledger .context-card:nth-child(3) { bottom: 1rem; left: 1.4rem; }
  .brand-atlas h1 { font-size: clamp(2.8rem, 14vw, 4.25rem); }
  .brand-atlas .hero-mark { min-height: 450px; }
  .brand-atlas .context-card { width: 72%; padding-left: 1rem; }
  .brand-atlas .context-card:nth-child(1) { top: 12%; left: 8%; }
  .brand-atlas .context-card:nth-child(2) { top: 41%; right: 6%; }
  .brand-atlas .context-card:nth-child(3) { top: auto; bottom: 12%; left: 10%; }
  .brand-atlas .section-shell[data-section]::before,
  .brand-manual .section-shell[data-section]::before { left: 14px; }
  .brand-atlas .section-shell[data-section]::after { left: 14px; }
  .brand-manual .section-shell[data-section]::after { left: 31px; }
  .brand-manual .hero-mark { min-height: 590px; grid-template-columns: 1fr; grid-template-rows: 74px 1fr auto; }
  .brand-manual .context-card:nth-child(1) { grid-column: 1; grid-row: 1; }
  .brand-manual .context-card:nth-child(2) { grid-column: 1; grid-row: 2; }
  .brand-manual .context-card:nth-child(3) { grid-column: 1; grid-row: 3; border-top: 1px solid #C9C5BC; border-left: 0; }
  .brand-manual .feature { grid-template-columns: 1fr; gap: .45rem; }
  .brand-manual .feature-tag { margin-bottom: .35rem; }
  .brand-swiss h1 { font-size: clamp(3.5rem, 18vw, 5.5rem); }
  .brand-swiss .hero-mark { min-height: 500px; }
  .brand-swiss .context-card { grid-template-columns: 48px 1fr; padding: 1rem 1.4rem 1rem 64px; }
  .brand-swiss .context-card::before { font-size: 2rem; }
  .brand-swiss .section-shell[data-section]::before { left: 14px; font-size: 2.8rem; }
  .brand-swiss .steps li,
  .brand-swiss .feature { grid-template-columns: 1fr; gap: .45rem; }
  .brand-swiss .final-cta .eyebrow,
  .brand-swiss .final-cta h2,
  .brand-swiss .final-cta .lede,
  .brand-swiss .final-cta .actions,
  .brand-swiss .final-cta .availability { grid-column: 1 / -1; }
  .preview-ui { grid-template-columns: 30% 1fr; }
  .preview-sidebar { padding: .6rem; }
  .preview-main { padding: .8rem; }
  .preview-label { margin-bottom: .35rem; font-size: .52rem; }
  .source-row { margin: .28rem 0; padding: .32rem; }
  .section-shell { padding-block: 4rem; }
  .commitment dl { grid-template-columns: 1fr; }
  .commitment div { display: block; border-bottom: 1px solid var(--line); padding-block: .7rem; }
  .commitment dt, .commitment dd { border: 0; padding: 0; text-align: left; }
  .commitment dd { margin-top: .2rem; }
  .footer-row { align-items: flex-start; flex-direction: column; }
  .footer-links { flex-wrap: wrap; }
  .launcher { padding-top: 2rem; }
  .launcher main { width: min(calc(100% - 28px), 1120px); }
  .launcher-group { grid-template-columns: 1fr; gap: .9rem; }
  .launcher-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem; }
  .launcher-list a { min-height: 88px; padding: .75rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .button:hover { transform: none; }
}