.founders-page {
  --letter-paper: #faf9f6;
  --letter-ink: #191714;
  --letter-card: #fffdf8;
  --letter-line: #e4e0d8;
  --letter-accent: #3157e7;
  margin: 0;
  padding: 0;
  background: var(--letter-paper);
}

:is(:root[data-theme="dark"], html.dark) .founders-page {
  --letter-paper: #25212a;
  --letter-ink: #f8f2ea;
  --letter-card: #302a35;
  --letter-line: #504958;
  --letter-accent: #a9b8ff;
}

.founders-page #__next {
  top: 8px;
  left: 10px;
  width: calc(100% - 20px);
  border-radius: 16px;
}

.founders-page .ws-nav { box-sizing: border-box; min-height: 72px; }
.founders-page .ws-left { min-width: 0; }
.founders-page .ws-logo {
  display: inline-flex;
  align-items: center;
  gap: clamp(6px, 1vw, 12px);
  min-width: 0;
  font: 700 clamp(15px, 2vw, 27px)/1.1 "Avenir Next", Inter, system-ui, sans-serif;
  text-decoration: none;
}
.founders-page .ws-logo img { flex: none; width: clamp(40px, 4.5vw, 58px); height: auto; margin: 0; }
.founders-page .progress-container { overflow: hidden; border-radius: 0 0 16px 16px; background: transparent; }

.founders-layout {
  --text: var(--letter-ink);
  display: grid;
  grid-template-columns: minmax(160px, 215px) minmax(0, 760px);
  align-items: start;
  gap: clamp(30px, 5vw, 86px);
  width: min(87.5%, 1280px);
  margin: 0 auto;
  padding: calc(var(--header-offset) + clamp(32px, 4vw, 64px)) 0 clamp(52px, 7vw, 92px);
  color: var(--text);
  font: 500 clamp(16px, 1.3vw, 18px)/1.7 "Avenir Next", Inter, system-ui, sans-serif;
}

.founders-layout :is(h1, h2, h3, p, li, a) { font-family: inherit; hyphens: none; }
.founders-layout a:focus-visible { outline: 3px solid var(--letter-accent); outline-offset: 3px; }

.letter-sidebar { position: sticky; top: calc(var(--header-offset) + 30px); }
.letter-rail-kicker {
  margin: 0 0 16px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.letter-rail-current {
  min-height: 2.8em;
  margin: 0 0 20px;
  padding-left: 12px;
  border-left: 3px solid var(--letter-accent);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.letter-rail-nav {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
}

.letter-rail-nav li { font-size: inherit; }
.letter-rail-nav a {
  display: block;
  padding: 6px 10px;
  border-radius: 8px;
  text-decoration: none;
}

.letter-rail-nav a:is(:hover, [aria-current]) { background: var(--letter-card); }
.letter-rail-nav a[aria-current] { font-weight: 750; }

.founders-layout .letter h1 {
  margin: 0 0 16px;
  font-size: clamp(38px, 5.2vw, 72px);
  font-weight: 900;
  letter-spacing: -.045em;
  line-height: 1.04;
  white-space: nowrap;
}

.founders-layout .letter h2 {
  margin: clamp(38px, 4.8vw, 64px) 0 14px;
  padding-top: 20px;
  border-top: 1px solid var(--letter-line);
  font-size: clamp(24px, 2.45vw, 34px);
  font-weight: 800;
  letter-spacing: -.025em;
  line-height: 1.18;
}

.founders-layout .letter p { margin: 0 0 18px; line-height: inherit; }
.founders-layout .letter h1 + p { font-size: clamp(18px, 1.55vw, 22px); }

.founders-layout .values {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 36px 0;
}

.letter-value {
  padding: clamp(18px, 2vw, 28px);
  border: 1px solid var(--letter-line);
  border-radius: 20px;
  background: var(--letter-card);
}

.founders-layout .letter-value h3 { margin: 0 0 10px; font-size: 20px; font-weight: 800; text-align: left; }
.letter-value ul { margin: 0; padding-left: 20px; }
.letter-value li { font-size: inherit; }
.letter-value li + li { margin-top: 6px; }
.signature strong { display: block; }

.letter-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; margin-top: 24px; }
.founders-layout .letter-cta .letter-download {
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--letter-ink);
  color: var(--letter-paper) !important;
  text-decoration: none;
}
.letter-cta a, .founders-layout .back-to-top a { font-size: 16px; font-weight: 700; text-underline-offset: 4px; }
.founders-layout .letter-illustration { display: block; width: 180px; height: auto; margin: 22px 0 4px; }

@media (max-width: 768px) {
  .founders-page .ws-nav { min-height: 64px; }
  .founders-page .header.menu-open .ws-center.header__links { top: 100%; border-radius: 0 0 16px 16px; }
  .founders-layout { grid-template-columns: minmax(0, 1fr); gap: 16px; width: calc(100% - 40px); padding-top: calc(var(--header-offset) + 24px); }
  .letter-sidebar { position: static; }
  .letter-rail-kicker { margin-bottom: 0; }
  .letter-sidebar :is(.letter-rail-current, nav) { display: none; }
}

@media (max-width: 520px) {
  .founders-layout .letter h1 { font-size: clamp(25px, 8.5vw, 38px); }
  .founders-layout .values { grid-template-columns: 1fr; }
}