@font-face { font-family: 'Source Sans 3'; src: url('fonts/source-sans-3-latin-wght-normal.woff2') format('woff2'); font-style: normal; font-weight: 200 900; font-display: swap; }
@font-face { font-family: 'Libre Baskerville'; src: url('fonts/libre-baskerville-latin-wght-italic.woff2') format('woff2'); font-style: italic; font-weight: 400 700; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url('fonts/jetbrains-mono-latin-wght-normal.woff2') format('woff2'); font-style: normal; font-weight: 100 800; font-display: swap; }
:root { color-scheme: light dark; --canvas: #f3e7d8; --structure: #0b3e4c; --decorative: #aa1e14; --highlight: #d0750a; --paper: #fffaf0; --paper-bright: #fffdf8; --ink: #15191a; --ink-soft: #273033; --muted: #626662; --line: rgba(21,25,26,.16); --band: #eaf3f3; --button: #0b5367; --button-text: #fffaf0; --shadow: 0 12px 35px rgba(18,22,22,.08); --content-width: min(calc(100% - clamp(48px,17.2vw,240px)),1200px); font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Apple SD Gothic Neo', sans-serif; font-size: 16px; }
@media (prefers-color-scheme: dark) { :root { color-scheme: dark; --canvas: #191b1e; --structure: #7f9392; --decorative: #c76e62; --highlight: #d0750a; --paper: #191b1e; --paper-bright: #202629; --ink: #f3e7d8; --ink-soft: #c5ccc8; --muted: #a7b1ad; --line: rgba(243,231,216,.18); --band: #202e32; --button: #a9d9dc; --button-text: #152629; --shadow: 0 12px 35px rgba(0,0,0,.15); } }
* { box-sizing: border-box; }
html { background: var(--paper); color: var(--ink); scroll-behavior: smooth; }
body { margin: 0; }
[hidden] { display: none !important; }
img { display: block; max-width: 100%; height: auto; }
figure { margin: 0; }
a { color: inherit; text-underline-offset: .18em; }
a:focus-visible, button:focus-visible, summary:focus-visible, textarea:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--highlight); outline-offset: 4px; }
button, textarea { font: inherit; }
.wrap { width: var(--content-width); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 10; top: 12px; left: 12px; transform: translateY(-180%); padding: 10px 18px; background: var(--paper-bright); border: 2px solid var(--structure); }
.skip-link:focus { transform: none; }
.site-header { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 28px; min-height: clamp(60px,5.83vw,84px); }
.wordmark { display: inline-flex; align-items: center; gap: 10px; width: fit-content; color: var(--ink); font-size: 24px; font-weight: 750; letter-spacing: -.04em; text-decoration: none; }
.wordmark-icon { flex: none; width: 32px; height: 32px; border-radius: 6px; }
nav { display: flex; gap: 32px; font-size: 16px; }
nav a { text-decoration: none; padding-block: 12px; }
nav a:hover { color: var(--structure); text-decoration: underline; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; padding: 10px 30px; border: 1px solid var(--button); border-radius: 8px; background: var(--button); color: var(--button-text); text-decoration: none; font-size: 16px; font-weight: 600; line-height: 1.3; transition: background .15s ease, box-shadow .15s ease; }
.button:hover { box-shadow: 0 0 0 3px color-mix(in srgb,var(--button) 18%,transparent); }
.button.secondary { background: transparent; color: var(--structure); border-color: color-mix(in srgb,var(--structure) 50%,transparent); font-weight: 400; }
.header-download { justify-self: end; min-height: 44px; padding-inline: 24px; }
.mobile-menu { display: none; }
h1,h2,h3,p { margin-top: 0; }
h1,h2,h3 { color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, 'Source Sans 3', sans-serif; }
h1 { margin-bottom: 8px; color: #062f3b; font-size: clamp(44px,5.3vw,76px); line-height: 1.04; font-weight: 750; letter-spacing: -.045em; }
h2 { margin-bottom: 0; font-size: clamp(30px,3.1vw,44px); line-height: 1.1; font-weight: 650; letter-spacing: -.025em; }
.period { color: var(--decorative); }
.hero { padding-top: clamp(40px,5.55vw,80px); }
.hero-intro { display: grid; grid-template-columns: minmax(0,1fr) 220px; gap: 42px; align-items: start; }
.hero-lede { margin-bottom: 28px; color: var(--muted); font-size: clamp(18px,1.6vw,23px); line-height: 1.4; }
.actions { display: flex; gap: 18px; flex-wrap: wrap; }
.requirements { margin: 8px 0 0; color: var(--muted); font-size: 15px; }
.editorial,.margin-note { font-family: Georgia, 'Libre Baskerville', serif; font-style: italic; font-weight: 400; letter-spacing: -.025em; }
.margin-note { margin: 0; color: var(--structure); font-size: 28px; line-height: 1.3; }
.margin-note::after { content: ''; display: block; width: 46px; height: 3px; margin-top: 28px; background: var(--highlight); }
.hero-media { margin-top: 38px; border-radius: 14px; box-shadow: 0 18px 40px rgba(15,25,25,.18); }
.hero-media img { width: 100%; border-radius: 14px; }
.three-column { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.05fr) minmax(0,.48fr); gap: 30px; align-items: center; }
.experience { padding-block: 72px 34px; }
/* The real Color Style details share a diagonal, stepped composition.
   Labels remain above the overlap; no mock system chrome or image tint. */
.color-styles { padding-block: 36px 48px; }
.style-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: end; margin-bottom: 32px; }
.style-intro.section-copy p { margin: 0; }
.style-showcase { min-width: 0; }
.style-stage { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); isolation: isolate; }
.style-window { grid-row: 1; grid-column: 1 / span 3; min-width: 0; align-self: start; border: 1px solid var(--line); border-radius: 12px; background: var(--paper-bright); overflow: hidden; box-shadow: 0 16px 32px rgba(15,25,25,.12); }
.style-cyberpunk { grid-column: 2 / span 3; margin-top: max(12%,88px); z-index: 1; }
.style-postal-editorial { grid-column: 3 / span 3; margin-top: max(24%,176px); z-index: 2; }
.style-window figcaption { display: flex; flex-direction: column; justify-content: center; min-height: 76px; padding: 10px 18px; border-bottom: 1px solid var(--line); }
.style-name { color: var(--structure); font-size: 18px; font-weight: 650; line-height: 1.5; }
.style-purpose { color: var(--muted); font-size: 14px; line-height: 1.5; }
.style-window img { width: 100%; aspect-ratio: 840 / 471; }
.style-showcase-caption { margin: 24px 0 0; color: var(--muted); font-size: 14px; line-height: 1.5; text-align: right; }
@media (max-width: 700px) {
  .style-intro { grid-template-columns: minmax(0,1fr); gap: 20px; }
  .style-stage { grid-template-columns: minmax(0,1fr); gap: 20px; }
  .style-window { grid-column: 1; grid-row: auto; margin-top: 0; border-radius: 8px; box-shadow: var(--shadow); }
  .style-window figcaption { padding-inline: 14px; }
  .style-name { font-size: 17px; }
  .style-purpose { font-size: 13px; }
  .style-showcase-caption { margin-top: 20px; text-align: left; }
}
.section-copy p, .side-note p { margin: 24px 0 0; color: var(--muted); font-size: 18px; line-height: 1.45; }
.experience .section-copy p { font-family: Georgia, 'Libre Baskerville', serif; }
.short-rule { width: 46px; height: 3px; background: var(--highlight); margin-top: 30px; }
.short-rule.red { background: var(--decorative); }
.section-copy h2.editorial { font-size: clamp(28px,2.8vw,39px); line-height: 1.3; }
.side-note { border-left: 1px solid var(--line); padding-left: 28px; }
.side-note h3 { margin: 0; font-size: 25px; line-height: 1.4; }
.side-note p { font-size: 16px; }
.demo-card { padding: 20px 24px 24px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper-bright); box-shadow: var(--shadow); min-width: 0; }
.tabs { display: flex; border-bottom: 1px solid var(--line); margin-bottom: 22px; gap: 4px; }
.tabs button { min-height: 44px; padding: 10px 14px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); cursor: pointer; font-size: 14px; white-space: nowrap; }
.tabs button[aria-selected="true"] { color: var(--structure); border-bottom-color: var(--structure); font-weight: 650; }
.sample-prose { font-size: 16px; line-height: 1.45; overflow-wrap: anywhere; }
.sample-prose h3 { font-size: 22px; margin-bottom: 16px; letter-spacing: -.02em; }
.sample-prose p { margin-bottom: 15px; }
.sample-prose p:last-child { margin-bottom: 0; }
.sample-prose ul { padding-left: 20px; margin-block: 12px 16px; }
.demo-caption { color: var(--muted); font-size: 12px; margin: 18px 0 0; }
.demo-card label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 10px; }
.demo-card textarea { display: block; width: 100%; min-height: 300px; resize: vertical; border: 1px solid var(--line); border-radius: 4px; background: var(--paper); color: var(--ink); padding: 12px; font-size: 15px; line-height: 1.5; }
#demo-source { font-family: 'JetBrains Mono',monospace; font-size: 13px; }
.focus-story { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; border-top: 1px solid var(--line); padding-block: 44px 48px; }
.focus-example { font-size: 20px; line-height: 1.5; }
.focus-example p { margin-bottom: 22px; }
.focus-example p:last-child { margin-bottom: 0; }
.surrounding { color: var(--muted); }
.active-sentence { border-left: 3px solid var(--decorative); padding-left: 22px; margin-left: -25px; color: var(--ink); }
.update-band { background: var(--band); }
.update-content { display: grid; grid-template-columns: 1.1fr 1fr; gap: 70px; align-items: center; padding-block: 32px; }
.update-label { margin-bottom: 12px; color: var(--decorative); font: 600 14px/1.5 'JetBrains Mono',monospace; }
.update-content h2 { font-size: 34px; font-weight: 400; }
.update-content > p { padding-left: 42px; border-left: 1px solid var(--highlight); margin: 0; color: var(--muted); font-size: 17px; line-height: 1.5; }
.structure { padding-block: 48px 38px; }
.structure-card { padding: 14px 20px 20px; }
.structure-card .tabs { gap: 0; margin-bottom: 16px; }
.structure-card .tabs button { padding-inline: 12px; font-size: 13px; }
.structure-card [data-panel] { min-height: 140px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; line-height: 1.3; }
th,td { padding: 10px 8px; text-align: left; border: 1px solid var(--line); }
th { font-weight: 650; background: color-mix(in srgb,var(--structure) 3%,var(--paper-bright)); }
pre { white-space: pre-wrap; overflow-wrap: anywhere; font: 13px/1.6 'JetBrains Mono',monospace; color: var(--structure); }
.panel-note { color: var(--muted); font-size: 14px; line-height: 1.5; margin-bottom: 0; }
.structure-card h3 { font-size: 20px; }
.closing { display: grid; grid-template-columns: 1fr 1.1fr .7fr; gap: 46px; padding-block: 36px 40px; border-top: 1px solid var(--line); align-items: start; }
.closing .section-copy p { font-size: 17px; margin-top: 14px; }
.faq { padding-inline: 28px; border-inline: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; }
.faq summary { padding-block: 14px; font-size: 15px; line-height: 1.4; }
.faq p { color: var(--muted); font-size: 15px; line-height: 1.5; margin-bottom: 20px; }
.closing-download { text-align: center; }
.closing-download .button { padding-inline: 18px; font-size: 15px; }
.closing-note { text-align: left; margin: 30px 0 0 20px; font-size: 23px; line-height: 1.4; color: var(--structure); }
.site-footer { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 32px; min-height: 92px; border-top: 1px solid var(--line); }
.site-footer nav { font-size: 14px; gap: 24px; }
.site-footer p { color: var(--muted); font-size: 13px; margin: 0; }
section[id] { scroll-margin-top: 24px; }
/* Existing support/privacy routes retain their factual copy and reading layout. */
.shell { width: var(--content-width); max-width: 860px; margin-inline: auto; }
.shell header { display: flex; align-items: center; justify-content: space-between; min-height: 84px; border-bottom: 1px solid var(--line); gap: 24px; }
.shell main { padding-block: 70px 92px; }
.shell h1 { font-size: clamp(42px,6vw,70px); margin-block: 18px 26px; }
.shell h2 { font-size: 30px; margin: 50px 0 16px; }
.shell p,.shell li { line-height: 1.75; }
.shell .lede { color: var(--muted); font-size: 20px; }
.shell .eyebrow { color: var(--muted); font-size: 14px; }
.shell dl { display: grid; grid-template-columns: 100px 1fr; gap: 16px; margin-top: 32px; }
.shell dd { margin: 0; overflow-wrap: anywhere; }
.shell dt { font-weight: 650; }
.shell .notice { border-left: 3px solid var(--decorative); padding: 14px 20px; background: color-mix(in srgb,var(--decorative) 5%,var(--paper)); margin-block: 36px; }
.shell footer { padding-block: 24px 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
@media (prefers-color-scheme: dark) { h1 { color: var(--ink); } }
@media (min-width: 861px) and (max-width: 1100px) { .site-header { gap: 18px; } nav { font-size: 14px; gap: 24px; } .header-download { min-height: 36px; padding: 8px 18px; font-size: 14px; } .hero-intro { grid-template-columns: minmax(0,1fr) 150px; gap: 24px; } .margin-note { font-size: 22px; } .hero-lede { font-size: 18px; } .hero-media { margin-top: 28px; } .button { min-height: 44px; padding: 10px 22px; font-size: 14px; } .three-column { gap: 20px; grid-template-columns: minmax(0,1fr) minmax(0,1.15fr) minmax(0,.55fr); } .section-copy h2.editorial { font-size: 28px; } .section-copy p { font-size: 15px; } .side-note { padding-left: 18px; } .side-note h3 { font-size: 20px; } .side-note p { font-size: 14px; } .demo-card { padding: 12px 16px 18px; } .tabs { margin-bottom: 16px; } .tabs button { padding-inline: 10px; font-size: 12px; } .sample-prose { font-size: 14px; } .sample-prose h3 { font-size: 18px; } .focus-story { gap: 70px; } .focus-example { font-size: 16px; } .update-content { gap: 30px; } .update-content h2 { font-size: 28px; } .update-content > p { padding-left: 24px; font-size: 14px; } .structure-card .tabs button { padding-inline: 6px; font-size: 11px; } th,td { font-size: 12px; padding: 8px 6px; } .closing { gap: 26px; } .faq { padding-inline: 20px; } .faq summary { font-size: 13px; } .closing-download .button { padding-inline: 12px; font-size: 13px; } .closing-note { font-size: 20px; } .site-footer { gap: 24px; } .site-footer p { font-size: 11px; } }
@media (min-width: 861px) and (max-width: 1100px) {
  .hero-lede { font-size: 17px; line-height: 1.3; margin-bottom: 20px; }
  .button { min-height: 36px; padding-block: 8px; }
  .requirements { font-size: 12px; line-height: 1.4; margin-top: 6px; }
  .experience { padding-block: 44px 20px; }
  .sample-prose { font-size: 12px; line-height: 1.4; }
  .sample-prose h3 { font-size: 16px; margin-bottom: 12px; }
  .sample-prose p { margin-bottom: 12px; }
  .sample-prose ul { margin-block: 8px 12px; }
  .tabs button { min-height: 36px; padding-block: 8px; }
  .demo-caption { font-size: 10px; margin-top: 12px; }
  .side-note h3 { font-size: 18px; }
  .three-column { grid-template-columns: minmax(0,1fr) minmax(0,1.15fr) 160px; }
  .side-note h3 { font-size: 17px; }
  .side-note p { font-size: 12px; }
  .section-copy p { font-size: 13px; margin-top: 20px; }
  .short-rule { width: 34px; margin-top: 22px; }
  .focus-story { padding-block: 28px 30px; gap: 70px; }
  .focus-example { font-size: 14px; }
  .focus-example p { margin-bottom: 18px; }
  .update-content { padding-block: 22px; }
  .update-label { font-size: 12px; margin-bottom: 8px; }
  .update-content h2 { font-size: 26px; }
  .update-content > p { font-size: 13px; }
  .structure { padding-block: 30px 25px; }
  .structure-card [data-panel] { min-height: 110px; }
  .closing { padding-block: 26px 28px; }
  .closing .section-copy p { font-size: 13px; }
  .faq summary { font-size: 12px; padding-block: 12px; }
  .site-footer { min-height: 64px; }
}
@media (max-width: 860px) { :root { --content-width: calc(100% - 48px); } .hero-intro { grid-template-columns: minmax(0,1fr) 165px; gap: 25px; } .margin-note { font-size: 23px; } .three-column { grid-template-columns: 1fr 1.1fr; } .side-note { display: none; } .focus-story { gap: 50px; } .closing { grid-template-columns: 1fr 1.2fr; gap: 24px; } .closing-download { grid-column: 1 / -1; display: flex; gap: 18px; align-items: center; justify-content: center; } .closing-note { margin: 0 0 0 24px; font-size: 20px; } .closing-download .requirements { margin: 0; } .update-content { gap: 30px; } .update-content > p { padding-left: 24px; } .update-content h2 { font-size: 28px; } }
@media (max-width: 700px) { .site-header { grid-template-columns: 1fr auto auto; gap: 14px; min-height: 76px; } .desktop-nav { display: none; } .wordmark { font-size: 22px; gap: 7px; } .header-download { padding-inline: 16px; font-size: 14px; } .mobile-menu { display: block; position: relative; font-size: 14px; } .mobile-menu summary { padding-block: 12px; min-height: 44px; } .mobile-menu nav { position: absolute; right: 0; top: 48px; z-index: 3; width: 180px; padding: 12px 20px; display: grid; gap: 0; background: var(--paper-bright); border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); } .hero { padding-top: 36px; } .hero-intro { display: block; } .margin-note { display: none; } h1 { font-size: clamp(38px,8.2vw,56px); } .hero-lede { margin-bottom: 24px; font-size: 20px; } .actions { gap: 10px; } .actions .button { padding-inline: 20px; } .hero-media { margin-top: 26px; border-radius: 8px; } .hero-media img { border-radius: 8px; } .three-column,.focus-story,.update-content,.closing { grid-template-columns: 1fr; } .experience { gap: 28px; padding-top: 44px; } .section-copy h2.editorial { font-size: 30px; } .section-copy p { font-size: 17px; margin-top: 20px; } .short-rule { margin-top: 22px; } .focus-story { gap: 30px; padding-block: 32px; } .focus-example { margin-left: 25px; font-size: 18px; } .update-content { gap: 22px; padding-block: 30px; } .update-content > p { padding-left: 18px; } .structure { gap: 26px; padding-block: 36px; } .structure-card { padding-inline: 16px; } .structure-card .tabs { justify-content: space-between; } .structure-card .tabs button { padding-inline: 8px; font-size: 12px; } .closing { gap: 26px; padding-block: 30px; } .faq { border-inline: 0; padding-inline: 0; } .closing-download { display: block; grid-column: auto; text-align: left; } .closing-download .requirements { margin-top: 8px; } .closing-note { display: none; } .site-footer { grid-template-columns: 1fr auto; gap: 16px; padding-block: 22px; } .site-footer p { grid-column: 1 / -1; } .shell nav { gap: 14px; } .shell main { padding-top: 40px; } }
@media (max-width: 380px) { :root { --content-width: calc(100% - 32px); } .site-header { gap: 10px; } .header-download { padding-inline: 12px; } .wordmark { font-size: 20px; } .wordmark-icon { width: 28px; height: 28px; } .actions { display: grid; } .tabs button { padding-inline: 10px; } .demo-card { padding-inline: 16px; } .structure-card .tabs button { padding-inline: 6px; font-size: 12px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *,*::before,*::after { transition: none !important; animation: none !important; } }