/* Checker / Day colors from docs/design/tokens.json. Web type scales for a larger canvas. */
:root {
  color-scheme: light;
  --bg: #FFFFFF;
  --card: #F4F4F6;
  --line: #ECECEE;
  --ink: #111114;
  --muted: #6B7280;
  --cta: #1B1C1E;
  --sage: #E5EFE6;
  --sage-strong: #7AA57F;
  --sage-ink: #1F3A27;
  --peach: #F9E6DC;
  --peach-ink: #3B2B22;
  --sky: #E2EBF6;
  --sky-ink: #1F3A5F;
  --border: #D1D5DB;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
button { cursor: pointer; }
img { display: block; max-width: 100%; }
svg { flex: 0 0 auto; }
button, a, summary { touch-action: manipulation; }
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--sky-ink); outline-offset: 5px; }
button::-moz-focus-inner { border: 0; }
[hidden] { display: none !important; }
p { margin: 0; }
h1, h2, h3 { margin: 0; font-weight: 650; }
h1 { font-size: clamp(52px, 6.8vw, 92px); line-height: .98; letter-spacing: -.065em; }
h2 { font-size: clamp(32px, 3.5vw, 48px); line-height: 1.08; letter-spacing: -.045em; }
h3 { font-size: 28px; line-height: 1.15; letter-spacing: -.035em; }
.shell { width: min(1240px, calc(100% - 96px)); margin-inline: auto; }
.icon { width: 24px; height: 24px; }
.skip-link { position: fixed; z-index: 10; top: 12px; left: 16px; padding: 14px 20px; background: var(--cta); color: white; border-radius: 12px; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 104px; }
.brand { display: flex; align-items: center; gap: 12px; min-height: 44px; text-decoration: none; font-size: 18px; font-weight: 650; letter-spacing: -.035em; }
.brand img { border-radius: 12px; }
.site-header nav { display: flex; gap: 28px; }
.site-header nav a { display: grid; align-items: center; min-height: 44px; font-size: 15px; font-weight: 500; text-decoration: none; }
.site-header nav a:hover, .site-header nav a[aria-current] { text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; }

.hero { display: grid; grid-template-columns: .87fr 1.13fr; gap: 50px; align-items: center; padding-block: 42px 88px; }
.launch-note { display: flex; align-items: center; gap: 9px; font-size: 14px; font-weight: 550; margin-bottom: 28px; }
.launch-dot { width: 7px; height: 7px; background: var(--sage-strong); border-radius: 50%; }
.hero-description { font-size: 19px; line-height: 1.55; max-width: 380px; margin-top: 26px; color: var(--muted); }
.button { min-height: 56px; padding: 15px 22px; display: inline-flex; align-items: center; justify-content: center; gap: 20px; border-radius: 999px; text-decoration: none; font-size: 15px; font-weight: 550; }
.button-dark { background: var(--cta); color: var(--bg); }
.button-dark:hover { background: var(--sage-ink); }
.hero .button { margin-top: 30px; }
.button .icon { width: 17px; height: 17px; }
.platform-note { font-size: 12px; color: var(--muted); margin-top: 14px; }
.hero-art { margin: 0; }
.hero-art img { width: 100%; height: clamp(390px, 40vw, 540px); object-fit: cover; border-radius: 28px; object-position: 49% center; }
.hero-art figcaption { display: flex; justify-content: space-between; gap: 16px; padding: 16px 1px 0; font-size: 12px; color: var(--muted); }
.hero-art figcaption span:last-child { white-space: nowrap; }

.walkaround { padding-block: 54px 56px; border-top: 1px solid var(--line); }
.section-intro { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 64px; margin-bottom: 36px; }
.section-intro > p { max-width: 420px; font-size: 17px; line-height: 1.6; color: var(--muted); }
.walkthrough { border-radius: 18px; overflow: hidden; background: var(--card); }
.category-tabs { display: grid; grid-template-columns: repeat(3, 1fr); padding: 8px; gap: 8px; }
.category-tab { display: grid; grid-template-columns: 28px 1fr; align-items: center; column-gap: 14px; text-align: left; padding: 20px 24px; border: 0; border-radius: 14px; min-height: 94px; background: transparent; color: var(--ink); position: relative; }
.category-tab > .icon { width: 28px; height: 28px; grid-row: span 2; }
.category-tab > span:nth-child(2) { font-size: 20px; font-weight: 600; letter-spacing: -.025em; }
.tab-prompt { margin-top: 4px; font-size: 13px; color: var(--muted); }
.category-tab:hover { background: var(--bg); }
.category-tab.exterior[aria-selected="true"] { background: var(--sage); color: var(--sage-ink); }
.category-tab.cabin[aria-selected="true"] { background: var(--peach); color: var(--peach-ink); }
.category-tab.systems[aria-selected="true"] { background: var(--sky); color: var(--sky-ink); }
.category-tab[aria-selected="true"] .tab-prompt { color: inherit; }
.category-tab:focus-visible { outline-offset: -4px; }
.category-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; padding: 45px 42px 46px; }
.category-panel:focus-visible { outline-offset: -5px; }
.category-name { font-size: 13px; font-weight: 550; color: var(--muted); margin-bottom: 14px; }
.panel-copy h3 { font-size: 34px; line-height: 1.1; letter-spacing: -.045em; }
.panel-copy > p:last-child { margin-top: 18px; max-width: 350px; font-size: 16px; line-height: 1.55; color: var(--muted); }
.example-checks { padding: 4px 0 0; }
.example-label { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.example-checks ul { list-style: none; margin: 0; padding: 0; }
.example-checks li { display: flex; align-items: center; gap: 16px; padding: 17px 0; border-bottom: 1px solid var(--border); font-size: 17px; font-weight: 550; letter-spacing: -.015em; }
.example-checks li:first-child { padding-top: 0; }
.example-checks li:last-child { border-bottom: 0; padding-bottom: 0; }
.check-index { display: grid; place-items: center; width: 44px; height: 44px; background: var(--bg); border-radius: 12px; flex: 0 0 auto; }
.check-index .icon { width: 21px; height: 21px; }
.example-checks small { display: block; font-size: 13px; line-height: 1.4; font-weight: 400; color: var(--muted); margin-top: 5px; letter-spacing: 0; }

.evidence { display: grid; grid-template-columns: 72px 1.25fr 1fr; gap: 30px; padding-block: 72px 90px; }
.evidence-mark { height: 64px; width: 64px; display: grid; place-items: center; border-radius: 18px; background: var(--peach); color: var(--peach-ink); }
.evidence-mark .icon { width: 30px; height: 30px; }
.evidence h2 { font-size: 34px; }
.evidence > div:nth-child(2) > p { margin-top: 20px; max-width: 400px; color: var(--muted); font-size: 16px; line-height: 1.6; }
.evidence-features { display: flex; flex-direction: column; gap: 30px; padding: 4px 0 0 24px; }
.evidence-features > div { display: flex; gap: 17px; }
.evidence-features .icon { width: 22px; height: 22px; margin-top: 2px; }
.evidence-features strong { font-size: 16px; font-weight: 600; }
.evidence-features span { display: block; margin-top: 8px; color: var(--muted); font-size: 14px; line-height: 1.55; }

.plans { padding-block: 64px 72px; border-top: 1px solid var(--line); }
.plan-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.free-plan, .plus-plan { border-radius: 18px; padding: 36px 40px 30px; }
.free-plan { background: var(--card); }
.plus-plan { background: var(--sage); color: var(--sage-ink); }
.plan-grid h3 { font-size: 21px; font-weight: 600; letter-spacing: -.02em; }
.plan-price { font-size: 52px; letter-spacing: -.06em; font-weight: 600; margin-block: 20px 28px; }
.plan-price span { font-size: 15px; font-weight: 450; letter-spacing: 0; }
.feature-list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 15px; }
.feature-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; line-height: 1.45; }
.feature-list .icon { width: 19px; height: 19px; margin-top: 1px; }
.plan-footnote { color: var(--muted); font-size: 12px; line-height: 1.65; margin-top: 32px; }
.plus-plan .plan-footnote { color: var(--sage-ink); margin-top: auto; padding-top: 32px; }
.plus-plan { display: flex; flex-direction: column; }
.plus-heading { display: flex; justify-content: space-between; align-items: center; }
.plus-symbol { font-size: 28px; font-weight: 350; line-height: 1; }
.closing { display: flex; align-items: center; gap: 24px; padding-block: 50px 76px; }
.closing img { border-radius: 24px; }
.closing h2 { font-size: 30px; }
.closing p { margin-top: 10px; color: var(--muted); font-size: 15px; }
.closing .text-link { margin-left: auto; }
.text-link { min-height: 44px; display: inline-flex; align-items: center; gap: 16px; font-size: 14px; text-underline-offset: 5px; }
.text-link .icon { width: 16px; height: 16px; }

.site-footer { border-top: 1px solid var(--line); padding-block: 28px 30px; }
.footer-top, .footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-brand { text-decoration: none; font-size: 16px; font-weight: 600; letter-spacing: -.025em; min-height: 44px; display: flex; align-items: center; }
.footer-top nav { display: flex; gap: 24px; }
.footer-top nav a { min-height: 44px; display: flex; align-items: center; font-size: 13px; text-decoration: none; }
.footer-top nav a:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer-bottom { align-items: flex-start; margin-top: 16px; }
.footer-bottom p { font-size: 11px; line-height: 1.5; color: var(--muted); }
.footer-bottom p:last-child { white-space: nowrap; }

.page-kicker { color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.document { padding-block: 58px 90px; }
.document-heading { padding-bottom: 54px; border-bottom: 1px solid var(--line); }
.document-heading h1 { font-size: clamp(48px, 6vw, 72px); }
.document-heading > p:last-child { margin-top: 22px; font-size: 15px; color: var(--muted); }
.document-layout { display: grid; grid-template-columns: 260px minmax(0, 680px); gap: 82px; padding-top: 52px; }
.document-nav { align-self: start; position: sticky; top: 32px; }
.document-nav > p { font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.document-nav nav { display: flex; flex-direction: column; align-items: flex-start; }
.document-nav a { padding-block: 12px; font-size: 14px; line-height: 1.4; min-height: 44px; text-decoration: none; }
.document-nav a:hover { text-decoration: underline; text-underline-offset: 4px; }
.document-body > section { margin-bottom: 38px; scroll-margin-top: 28px; }
.document-body h2 { font-size: 25px; letter-spacing: -.025em; line-height: 1.2; margin-bottom: 16px; }
.document-body p { font-size: 16px; line-height: 1.7; margin-top: 14px; }
.contact-block { display: flex; align-items: center; gap: 20px; border-radius: 18px; background: var(--sage); color: var(--sage-ink); padding: 28px; }
.contact-block > .icon { width: 28px; height: 28px; }
.contact-block h2 { font-size: 18px; margin-bottom: 4px; }
.contact-block a { display: inline-flex; align-items: center; min-height: 44px; font-size: 15px; text-underline-offset: 5px; overflow-wrap: anywhere; }

.support { padding-block: 58px 80px; }
.support-heading { display: grid; grid-template-columns: 1fr .85fr; gap: 110px; align-items: center; padding-bottom: 76px; }
.support-heading h1 { font-size: clamp(48px, 5.8vw, 76px); }
.support-heading > div:first-child > p:last-child { max-width: 410px; font-size: 18px; line-height: 1.6; color: var(--muted); margin-top: 28px; }
.support-contact { background: var(--sky); color: var(--sky-ink); border-radius: 18px; padding: 34px; }
.support-contact > .icon { width: 32px; height: 32px; margin-bottom: 26px; }
.support-contact h2 { font-size: 25px; margin-bottom: 6px; }
.support-contact a { display: inline-flex; align-items: center; min-height: 44px; font-size: clamp(16px, 1.7vw, 21px); text-underline-offset: 6px; overflow-wrap: anywhere; }
.support-contact p { margin-top: 20px; font-size: 14px; line-height: 1.6; }
.faq { display: grid; grid-template-columns: .7fr 1.3fr; gap: 80px; padding-block: 48px; border-block: 1px solid var(--line); }
.faq > h2 { font-size: 34px; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:first-child summary { padding-top: 0; }
.faq-list details:last-child { border-bottom: 0; }
.faq-list summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 24px; min-height: 56px; font-size: 17px; font-weight: 550; line-height: 1.5; cursor: pointer; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { font-size: 24px; font-weight: 350; flex: 0 0 auto; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { margin: -5px 35px 24px 0; font-size: 15px; color: var(--muted); line-height: 1.65; }
.support-privacy { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding-top: 36px; }
.support-privacy p { font-size: 14px; line-height: 1.6; color: var(--muted); max-width: 470px; }
.not-found { padding-block: 100px 160px; }
.not-found h1 { font-size: clamp(48px, 6vw, 76px); }
.not-found p:not(.page-kicker) { margin-top: 24px; font-size: 18px; color: var(--muted); }
.not-found .button { margin-top: 30px; }

@media (min-width: 1500px) { .hero { gap: 80px; } }
@media (max-width: 1050px) {
  .shell { width: calc(100% - 64px); }
  .hero { gap: 28px; }
  .hero-description { font-size: 17px; }
  .hero-art img { height: 430px; }
  .hero-art figcaption { display: block; }
  .hero-art figcaption span:last-child { display: none; }
  .category-tab { padding: 19px 16px; column-gap: 10px; }
  .category-panel { gap: 35px; padding: 34px 28px; }
  .evidence { grid-template-columns: 1.15fr 1fr; gap: 36px; }
  .evidence-mark { display: none; }
  .evidence-features { padding-left: 0; }
  .free-plan, .plus-plan { padding: 30px; }
  .closing h2 { font-size: 27px; }
  .closing .text-link { max-width: 185px; }
  .document-layout { grid-template-columns: 215px minmax(0, 1fr); gap: 40px; }
  .support-heading { gap: 54px; }
  .support-contact { padding: 28px; }
  .faq { gap: 44px; }
}

@media (max-width: 760px) {
  .shell { width: calc(100% - 40px); }
  .site-header { min-height: 88px; gap: 16px; }
  .brand { font-size: 16px; gap: 10px; }
  .brand img { width: 36px; height: 36px; border-radius: 10px; }
  .site-header nav { gap: 20px; }
  .site-header nav a { font-size: 14px; }
  .site-header nav a:first-child { display: none; }
  .hero { grid-template-columns: 1fr; gap: 35px; padding-block: 35px 46px; }
  .hero-copy { max-width: 510px; }
  h1 { font-size: clamp(64px, 12vw, 80px); }
  .launch-note { margin-bottom: 24px; font-size: 13px; }
  .hero-description { margin-top: 24px; max-width: 380px; font-size: 17px; line-height: 1.55; }
  .hero .button { margin-top: 25px; }
  .hero-art img { height: auto; aspect-ratio: 1.22; object-position: center; border-radius: 18px; }
  .hero-art figcaption { display: flex; font-size: 11px; padding-top: 12px; }
  .hero-art figcaption span:last-child { display: inline; }
  .section-intro { grid-template-columns: 1fr; gap: 20px; margin-bottom: 28px; }
  .section-intro > p { font-size: 16px; max-width: 460px; }
  h2 { font-size: 34px; }
  .walkaround { padding-block: 42px; }
  .category-tabs { gap: 4px; padding: 6px; }
  .category-tab { display: flex; flex-direction: column; justify-content: center; min-height: 88px; padding: 13px 6px; gap: 8px; }
  .category-tab > .icon { width: 23px; height: 23px; }
  .category-tab > span:nth-child(2) { font-size: 16px; }
  .tab-prompt { display: none; }
  .category-panel { grid-template-columns: 1fr; gap: 30px; padding: 27px 24px 30px; }
  .panel-copy h3 { font-size: 30px; }
  .panel-copy > p:last-child { font-size: 15px; }
  .category-name { margin-bottom: 12px; }
  .example-checks li { font-size: 16px; }
  .example-checks small { font-size: 12px; }
  .evidence { grid-template-columns: 1fr; padding-block: 36px 50px; gap: 30px; }
  .evidence h2 { font-size: 32px; }
  .evidence > div:nth-child(2) > p { max-width: 500px; }
  .evidence-features { gap: 24px; }
  .evidence-features > div { max-width: 450px; }
  .plans { padding-block: 42px; }
  .plan-grid { grid-template-columns: 1fr; gap: 14px; }
  .free-plan, .plus-plan { padding: 28px; }
  .plan-price { font-size: 48px; }
  .plan-footnote { margin-top: 26px; }
  .plus-plan .plan-footnote { padding-top: 26px; }
  .closing { flex-wrap: wrap; gap: 20px; padding-block: 26px 42px; }
  .closing img { width: 64px; height: 64px; border-radius: 18px; }
  .closing h2 { font-size: 25px; max-width: 260px; }
  .closing p { font-size: 14px; margin-top: 7px; }
  .closing .text-link { margin-left: 0; max-width: none; flex-basis: 100%; }
  .footer-top { flex-wrap: wrap; gap: 8px 24px; }
  .footer-bottom { flex-direction: column; gap: 16px; margin-top: 20px; }
  .footer-bottom p { max-width: 340px; }
  .site-footer { padding-top: 20px; }
  .document { padding-block: 36px 52px; }
  .document-heading { padding-bottom: 32px; }
  .document-heading h1 { font-size: 48px; }
  .document-layout { grid-template-columns: 1fr; gap: 36px; padding-top: 32px; }
  .document-nav { position: static; border-bottom: 1px solid var(--line); padding-bottom: 24px; }
  .document-nav nav { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 18px; align-items: start; }
  .document-nav a { padding-block: 9px; min-height: 44px; font-size: 13px; }
  .document-body h2 { font-size: 24px; }
  .document-body p { font-size: 15px; }
  .contact-block { padding: 22px; gap: 16px; }
  .contact-block > .icon { width: 24px; height: 24px; }
  .contact-block a { font-size: 14px; }
  .support { padding-block: 36px 50px; }
  .support-heading { grid-template-columns: 1fr; gap: 34px; padding-bottom: 42px; }
  .support-heading h1 { font-size: 54px; }
  .support-heading > div:first-child > p:last-child { font-size: 17px; margin-top: 24px; }
  .support-contact { padding: 28px; }
  .support-contact > .icon { margin-bottom: 22px; }
  .support-contact a { font-size: 19px; }
  .faq { grid-template-columns: 1fr; gap: 30px; padding-block: 36px; }
  .faq > h2 { font-size: 30px; }
  .faq-list summary { font-size: 16px; gap: 24px; padding-block: 20px; }
  .faq-list details p { font-size: 14px; }
  .support-privacy { flex-direction: column; align-items: flex-start; gap: 14px; padding-top: 28px; }
  .not-found { padding-block: 60px 90px; }
}

@media (max-width: 360px) {
  .brand { font-size: 14px; gap: 8px; }
  .brand img { width: 32px; height: 32px; }
  .site-header nav a { font-size: 13px; }
  h1 { font-size: 61px; }
  .hero-art figcaption span:last-child { display: none; }
  .category-panel { padding-inline: 20px; }
  .example-checks li { gap: 12px; }
  .example-checks small { font-size: 12px; }
  .plan-grid h3 { font-size: 20px; }
  .free-plan, .plus-plan { padding: 25px; }
  .closing h2 { max-width: 180px; font-size: 24px; }
  .support-heading h1 { font-size: 47px; }
  .support-contact { padding: 24px; }
  .support-contact a { font-size: 17px; }
  .contact-block { gap: 12px; padding: 20px; }
  .contact-block h2 { font-size: 16px; }
  .contact-block a { font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  .site-header, .site-footer, .document-nav, .skip-link { display: none; }
  .document { width: 100%; padding: 0; }
  .document-layout { display: block; padding-top: 24px; }
  .document-body > section { break-inside: avoid; }
}