:root {
  --ink: #1a1a19;
  --muted: #5c5a56;
  --line: #e3e0d8;
  --paper: #ffffff;
  --card: #ffffff;
  --orange: #f66800;
  --orange-deep: #c65200;
  --sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --measure: 40rem;
  --page: 68rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.skip {
  position: absolute;
  left: 1rem;
  top: 0.5rem;
  transform: translateY(-150%);
  background: var(--ink);
  color: white;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  z-index: 2;
}

.skip:focus {
  transform: none;
}

.top,
main,
.foot {
  width: min(var(--page), calc(100% - 2.5rem));
  margin-inline: auto;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0 0.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
}

.brand-mark {
  width: 2.25rem;
  height: 2.25rem;
}

.brand-word {
  width: auto;
  height: 1.45rem;
}

.text-link,
.actions-note a,
.invite a,
.foot a {
  color: var(--ink);
  text-underline-offset: 0.18em;
}

.text-link {
  font-size: 0.95rem;
  font-weight: 500;
}

.hero {
  padding: 3.5rem 0 2.5rem;
  max-width: 46rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--orange-deep);
  font-size: 0.95rem;
  font-weight: 600;
}

h1,
h2,
h3 {
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -0.02em;
}

h1 {
  margin: 0;
  font-size: clamp(2.35rem, 5vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.lead {
  margin: 1.25rem 0 0;
  max-width: var(--measure);
  color: var(--muted);
  font-size: 1.125rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem 1.25rem;
  margin-top: 1.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.55rem 1.1rem;
  border-radius: 0.5rem;
  background: var(--orange);
  color: white;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 1px 2px rgb(26 26 25 / 0.08);
}

.button:hover {
  background: var(--orange-deep);
}

.actions-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.block {
  padding: 2.25rem 0;
  border-top: 1px solid var(--line);
}

.block-head {
  max-width: var(--measure);
  margin-bottom: 1.5rem;
}

.block-head h2,
.invite h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.15rem);
  line-height: 1.15;
}

.block-head p,
.invite > p {
  margin: 0.6rem 0 0;
  color: var(--muted);
}

.pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.pillars li {
  background: var(--card);
  border: none;
  border-radius: 0.5rem;
  padding: 1.1rem 1.15rem 1.15rem;
  box-shadow:
    0 1px 2px rgb(26 26 25 / 0.04),
    0 4px 16px rgb(26 26 25 / 0.06);
}

.pillars h3 {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0;
}

.pillars p {
  margin: 0.45rem 0 0;
  color: var(--muted);
}

.invite {
  margin: 0.5rem 0 3rem;
  padding: 1.75rem 1.35rem;
  border-radius: 0.5rem;
  background: var(--ink);
  color: #ffffff;
}

.invite > p,
.invite-sign {
  color: #d9d6cf;
}

.invite .button {
  margin-top: 1.25rem;
}

.invite-sign {
  margin: 1rem 0 0;
  font-size: 0.95rem;
}

.invite a {
  color: white;
}

.foot {
  padding: 0 0 2.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.foot p {
  margin: 0;
}

.foot-meta {
  margin-top: 0.25rem;
}

:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

@media (min-width: 720px) {
  .top,
  main,
  .foot {
    width: min(var(--page), calc(100% - 4rem));
  }

  .hero {
    padding-top: 5rem;
  }

  .pillars {
    grid-template-columns: repeat(3, 1fr);
  }

  .invite {
    padding: 2.25rem 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}