* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; background: var(--color-background); color: var(--color-ink); font-family: var(--font-body); font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: var(--color-link); text-underline-offset: 4px; }
a:hover { color: var(--color-link-hover); }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 5px; border-radius: 4px; }
.wrap { width: min(var(--content-width), calc(100% - 64px)); margin-inline: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 25px; border-bottom: 1px solid var(--color-border); }
.brand { display: inline-flex; align-items: center; gap: 3px; color: var(--color-ink); font-size: 25px; font-weight: 750; text-decoration: none; letter-spacing: -1px; }
.brand-mark { width: 54px; height: 54px; object-fit: contain; flex-shrink: 0; }
nav { display: flex; flex-wrap: wrap; gap: 24px; }
nav a { color: var(--color-muted); text-decoration: none; font-size: 14px; }
nav a:hover, nav a[aria-current] { color: var(--color-ink); text-decoration: underline; text-decoration-color: var(--color-accent); text-decoration-thickness: 2px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--font-display); font-weight: 800; letter-spacing: -.045em; line-height: 1.08; }
h1 { font-size: clamp(40px, 5.2vw, 72px); }
h2 { font-size: clamp(32px, 4vw, 48px); }
h3 { font-size: 20px; line-height: 1.3; letter-spacing: -.02em; }
p { margin-bottom: 20px; }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: var(--color-ink); }
.hero { display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: 48px; padding-block: 64px 72px; }
.hero h1 { margin-block: 20px 26px; }
.hero h1 em { color: var(--color-ink); font-style: normal; font-weight: 800; text-decoration: underline; text-decoration-color: var(--color-accent); text-decoration-thickness: .12em; text-underline-offset: .06em; text-decoration-skip-ink: none; }
.lead { color: var(--color-muted); font-size: 18px; line-height: 1.7; max-width: 560px; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 13px 24px; border-radius: var(--radius-button); background: var(--color-accent); color: var(--color-on-accent); font-weight: 600; font-size: 14px; text-decoration: none; }
.button { min-height: 48px; }
.button:hover { background: var(--color-accent-hover); color: var(--color-on-accent); }
.text-link { font-size: 14px; font-weight: 600; }
.launch-note { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--color-muted); margin-top: 28px; }
.launch-note img { width: 52px; height: 52px; flex-shrink: 0; object-fit: contain; border-radius: 13px; }
.launch-note p { margin: 0; line-height: 1.5; }
.launch-note strong { color: var(--color-ink); font-weight: 600; }
.example { border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--color-surface); padding: 26px; box-shadow: var(--shadow-card); }
.example-top { display: flex; justify-content: space-between; gap: 16px; align-items: center; border-bottom: 1px solid var(--color-border); padding-bottom: 20px; margin-bottom: 26px; }
.example-top p { margin: 0; }
.pill { border-radius: 8px; padding: 5px 11px; background: var(--color-accent); font-size: 12px; font-weight: 700; color: var(--color-ink); }
.exchange { display: grid; grid-template-columns: 1fr auto 1fr; gap: 10px; align-items: center; padding: 18px 0; }
.exchange div { text-align: center; }
.exchange span { color: var(--color-muted); font-size: 12px; }
.exchange strong { display: block; font-size: 23px; font-family: var(--font-display); font-weight: 750; }
.exchange .exchange-arrow { font-size: 24px; color: var(--color-secondary); }
.example-caption { font-size: 15px; color: var(--color-muted); margin: 20px 0 0; padding-top: 22px; border-top: 1px solid var(--color-border); }
.example-label { font-size: 11px; color: var(--color-muted); margin: 16px 0 0; }
.topic-strip { background: var(--color-surface-secondary); border-block: 1px solid var(--color-border); padding-block: 22px; }
.topic-list { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px 24px; color: var(--color-muted-on-soft); font-family: var(--font-display); font-weight: 600; font-size: 18px; }
.section { padding-block: 84px; }
.section-heading { max-width: 650px; margin-bottom: 38px; }
.section-heading h2 { margin-bottom: 18px; }
.section-heading p:last-child { color: var(--color-muted); }
.grid-three { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step { border-top: 1px solid var(--color-border); padding-top: 24px; }
.step-number { display: inline-block; color: var(--color-ink); font-weight: 700; border-left: 4px solid var(--color-accent); padding-left: 10px; font-size: 12px; margin-bottom: 24px; }
.step p, .feature p { color: var(--color-muted); font-size: 15px; margin-bottom: 0; }
.soft-section { background: var(--color-surface-secondary); }
.soft-section .section-heading p:last-child { color: var(--color-muted-on-soft); }
.feature { background: var(--color-surface); border: 1px solid var(--color-border); padding: 28px; border-radius: var(--radius-card); }
.feature .eyebrow { display: block; margin-bottom: 24px; }
.closing { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding-block: 76px; }
.closing h2 { max-width: 650px; margin-bottom: 0; }
.site-footer { padding-block: 40px; border-top: 1px solid var(--color-border); display: flex; justify-content: space-between; gap: 30px; }
.site-footer p, .site-footer small { font-size: 13px; color: var(--color-muted); }
.site-footer p { margin: 12px 0; }
.page-header { padding-top: 70px; max-width: 760px; }
.page-header::after { content: ""; display: block; width: 56px; height: 5px; margin-top: 28px; border-radius: 3px; background: var(--color-accent); }
.page-header h1 { font-size: clamp(42px, 5vw, 60px); margin-bottom: 22px; }
.page-header .lead { max-width: 700px; }
.prose { max-width: 760px; padding-block: 24px 76px; }
.prose h2 { font-family: var(--font-body); font-size: 23px; font-weight: 650; letter-spacing: -.02em; margin: 36px 0 16px; line-height: 1.3; }
.prose p, .prose li { color: var(--color-muted); }
.prose ul { padding-left: 23px; }
.prose li { margin-bottom: 10px; }
.notice { padding: 20px 24px; border-radius: 16px; background: var(--color-accent-soft); color: var(--color-ink); font-size: 14px; }
.support-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; padding-block: 30px 80px; }
.support-card { align-self: start; background: var(--color-surface); padding: 28px; border: 1px solid var(--color-border); border-radius: var(--radius-card); }
.support-card p { color: var(--color-muted); font-size: 15px; }
details { border-bottom: 1px solid var(--color-border); padding: 20px 0; }
summary { cursor: pointer; font-size: 17px; font-weight: 600; }
details p { margin: 16px 0 0; color: var(--color-muted); }
.skip-link { position: absolute; left: 16px; top: -100px; padding: 12px 20px; background: var(--color-surface); z-index: 10; }
.skip-link:focus { top: 12px; }

.photo-collage { position: relative; min-width: 0; width: 100%; aspect-ratio: 1 / 1.2; isolation: isolate; }
.photo-collage::before { content: ""; position: absolute; width: 75%; height: 61%; right: 0; top: 6%; background: var(--color-accent); border-radius: 46% 54% 38% 62%; z-index: -1; }
.activity-photo { position: absolute; margin: 0; padding: 8px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-card); box-shadow: var(--shadow-card); }
.activity-photo-share { width: 90%; top: 0; left: 0; transform: rotate(-5deg); }
.activity-photo-practice { width: 82%; bottom: 3%; right: 1%; transform: rotate(4deg); }
.activity-photo img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; border-radius: calc(var(--radius-card) - 6px); }
.activity-photo figcaption { position: absolute; bottom: 20px; left: 18px; max-width: calc(100% - 36px); display: flex; align-items: center; gap: 16px; border-radius: 8px; padding: 8px 12px; background: var(--color-surface); color: var(--color-ink); font-size: 13px; font-weight: 650; box-shadow: var(--shadow-card); }
.activity-photo-share figcaption { background: var(--color-accent); top: 18px; bottom: auto; }
.activity-photo figcaption span { font-size: 17px; }
.how-intro { display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: 64px; margin-bottom: 48px; }
.how-intro .section-heading { margin-bottom: 0; }
.how-intro .example { min-width: 0; }
nav a { display: inline-flex; align-items: center; min-height: 44px; }
summary { min-height: 44px; padding-block: 8px; }

@media (max-width: 800px) {
  .hero { gap: 36px; grid-template-columns: 1fr; padding-block: 55px 60px; }
  .hero-copy { max-width: 620px; }
  .photo-collage { max-width: 480px; justify-self: center; }
  .how-intro { grid-template-columns: 1fr; gap: 28px; margin-bottom: 36px; }
  .example { max-width: 480px; width: 100%; transform: none; }
  .grid-three { grid-template-columns: 1fr; gap: 30px; }
  .section { padding-block: 60px; }
  .step-number { margin-bottom: 16px; }
  .closing { align-items: start; flex-direction: column; padding-block: 56px; gap: 26px; }
  .support-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 480px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { align-items: start; flex-direction: column; gap: 18px; padding-block: 20px; }
  nav { gap: 22px; }
  .hero { padding-top: 40px; }
  .example { padding: 24px 20px; }
  .activity-photo { padding: 6px; }
  .activity-photo figcaption { font-size: 11px; gap: 8px; padding: 6px 9px; bottom: 14px; left: 12px; max-width: calc(100% - 24px); }
  .activity-photo-share figcaption { top: 14px; bottom: auto; }
  .site-footer { flex-direction: column; }
  .page-header { padding-top: 44px; }
  .topic-list { justify-content: start; font-size: 18px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }