:root {
  --ink: #171717;
  --muted: #606060;
  --line: #dedede;
  --sans: Arial, Helvetica, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font: 16px/1.6 var(--sans); }
a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 20px; font-size: clamp(38px, 4.7vw, 58px); line-height: 1.06; letter-spacing: -.045em; }
h2 { margin-bottom: 18px; font-size: clamp(25px, 2.8vw, 32px); line-height: 1.22; letter-spacing: -.025em; }
h3 { margin: 24px 0 8px; font-size: 18px; line-height: 1.4; }
p { margin-bottom: 14px; }
p:last-child { margin-bottom: 0; }
.container { width: min(1040px, calc(100% - 48px)); margin-inline: auto; }
.narrow { width: min(780px, calc(100% - 48px)); margin-inline: auto; }
.section { padding: 34px 0; }
.compact { padding: 26px 0; }
.centered { text-align: center; }
.caps { text-transform: none; }
.lead { font-size: 20px; line-height: 1.45; }
.hero { padding-top: 44px; padding-bottom: 34px; }
.hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; align-items: center; column-gap: 44px; row-gap: 20px; }
.hero-heading { grid-column: 1; grid-row: 1; }
.hero-copy { grid-column: 1; grid-row: 2; max-width: 590px; }
.hero-image { grid-column: 2; grid-row: 1 / 3; width: 100%; height: auto; max-width: 370px; justify-self: end; aspect-ratio: 1; object-fit: cover; }
.button { display: inline-flex; min-height: 46px; max-width: 100%; align-items: center; justify-content: center; border: 1px solid var(--ink); border-radius: 0; padding: 12px 22px; font: 700 14px/1.35 var(--sans); text-decoration: none; cursor: pointer; transition: background .15s, color .15s; }
.button-solid { color: #fff; background: var(--ink); }
.button-solid:hover { background: #383838; }
.button-outline { color: var(--ink); background: #fff; }
.button-outline:hover { color: #fff; background: var(--ink); }
.button:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.hero .subscribe-actions { margin-top: 16px; }
.subscribe-actions { display: flex; flex-wrap: wrap; align-items: stretch; gap: 10px; }
.cta-block .subscribe-actions { justify-content: center; }
.cta-title { margin: 0 0 12px; font-size: 18px; font-weight: 700; line-height: 1.4; letter-spacing: 0; }
.cta-row .narrow, .final-cta .narrow { width: 100%; }
.section-heading { margin-bottom: 26px; }
.section-heading h2 { margin-bottom: 6px; }
.section-heading p { color: var(--muted); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.steps h3 { margin-top: 5px; }
.cta-row { padding: 14px 24px 24px; }
.audience h2, .faq h2 { margin-bottom: 24px; }
.faq details { border-bottom: 1px solid var(--line); text-align: left; }
.faq summary { position: relative; padding: 16px 36px 16px 0; font-weight: 700; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 3px; top: 12px; font-size: 23px; font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq details div { padding: 0 30px 16px 0; color: #444; }
.friends h2 { font-size: clamp(24px, 2.8vw, 30px); }
#invite-text { margin: 20px 0 0; border-left: 2px solid var(--ink); padding: 4px 0 4px 20px; text-align: left; }
.author-quote { margin-block: 0; }
.author-quote blockquote { position: relative; margin: 0; padding: 20px 0; border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink); }
.author-quote blockquote::after { content: ""; position: absolute; bottom: -13px; left: 28px; width: 20px; height: 20px; background: #fff; border-left: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: skewY(-40deg); }
.author-quote blockquote p { margin: 0; font-size: clamp(22px, 2.5vw, 28px); font-weight: 700; line-height: 1.35; letter-spacing: -.02em; }
.author-caption { display: flex; align-items: center; gap: 18px; padding-top: 30px; }
.author-caption img { flex: 0 0 72px; width: 72px; height: 72px; border-radius: 50%; object-fit: cover; object-position: center 22%; }
.author-caption cite { display: block; margin-bottom: 3px; font-size: 16px; font-style: normal; font-weight: 700; }
.author-caption p { max-width: 470px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.gray-zone { margin-top: 20px; padding: 30px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fafafa; }
.gray-zone .section { padding: 18px 0; }
.gray-zone h2 { margin-bottom: 12px; font-size: 24px; }
.final-cta { padding: 34px 24px; }
footer { padding: 20px 24px; color: #777; text-align: center; font-size: 12px; }
footer p { margin: 0; }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr); column-gap: 28px; }
  .steps { gap: 24px; }
}
@media (max-width: 680px) {
  body { font-size: 16px; line-height: 1.55; }
  .container, .narrow { width: calc(100% - 40px); max-width: 520px; }
  .section { padding: 24px 0; }
  .centered { text-align: left; }
  h1 { margin-bottom: 14px; font-size: clamp(32px, 9.5vw, 46px); line-height: 1.1; letter-spacing: -.04em; }
  h2 { margin-bottom: 16px; font-size: 26px; line-height: 1.2; }
  h3 { margin: 22px 0 8px; font-size: 18px; }
  .hero { padding-top: 26px; }
  .hero-grid { display: flex; flex-direction: column; align-items: stretch; gap: 20px; }
  .hero-heading { order: 0; }
  .hero-copy { order: 1; max-width: none; }
  .hero-image { order: 2; align-self: center; width: 180px; max-width: 60%; height: auto; }
  .lead { margin-bottom: 18px; font-size: 18px; line-height: 1.45; }
  .lead br { display: none; }
  .button { width: 100%; min-height: 48px; padding: 13px 16px; font-size: 14px; line-height: 1.4; white-space: normal; text-align: center; }
  .hero .subscribe-actions { margin-top: 18px; }
  .subscribe-actions { flex-direction: column; gap: 10px; }
  .cta-title { margin-bottom: 12px; font-size: 18px; }
  .steps { display: block; }
  .steps article { padding: 20px 0; border-top: 1px solid var(--line); }
  .steps article:last-child { padding-bottom: 0; }
  .steps h3 { margin: 0 0 10px; font-size: 20px; }
  .section-heading { margin-bottom: 20px; text-align: left; }
  .section-heading h2 { margin-bottom: 5px; }
  .cta-row { padding: 12px 20px 20px; }
  .audience h2, .faq h2 { margin-bottom: 20px; text-align: left; }
  .faq summary { padding: 16px 30px 16px 0; line-height: 1.45; }
  .faq details div { padding: 0 8px 16px 0; }
  .friends h2 { font-size: 26px; }
  #invite-text { padding-left: 14px; }
  .author-quote blockquote { padding: 17px 0; }
  .author-quote blockquote p { font-size: 21px; line-height: 1.4; letter-spacing: -.015em; }
  .author-caption { align-items: flex-start; gap: 13px; padding-top: 28px; }
  .author-caption img { flex: 0 0 56px; width: 56px; height: 56px; }
  .author-caption div { min-width: 0; }
  .author-caption cite { font-size: 15px; }
  .author-caption p { font-size: 13px; line-height: 1.5; }
  .gray-zone { margin-top: 12px; padding: 18px 0; }
  .gray-zone .section { padding: 16px 0; }
  .gray-zone h2 { font-size: 23px; }
  .final-cta { padding: 26px 20px; }
  footer { padding: 18px 20px; }
}
@media (max-width: 360px) {
  .container, .narrow { width: calc(100% - 32px); }
  .cta-row, .final-cta { padding-inline: 16px; }
  .author-quote blockquote p { font-size: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}