* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--pm-paper);
  color: var(--pm-ink);
  font-family: var(--pm-sans);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
a:focus-visible {
  outline: 2px solid var(--pm-link);
  outline-offset: 5px;
}
.shell {
  max-width: 1280px;
  margin: auto;
  padding: 0 48px;
}
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--pm-line);
}
.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.04em;
}
.button {
  display: inline-flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  padding: 14px 18px;
  border: 1px solid var(--pm-ink);
  border-radius: 4px;
  background: var(--pm-ink);
  color: white;
  font-size: 14px;
  font-weight: 500;
  transition: background 150ms ease-out;
}
.button:hover {
  background: #30383e;
}
.secondary {
  background: transparent;
  color: var(--pm-ink);
  border-color: var(--pm-line);
}
.secondary:hover {
  background: white;
}
.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  padding: 104px 0 88px;
  align-items: center;
}
.eyebrow,
.number,
.stage,
.overview-title,
.overview-note {
  font-family: var(--pm-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--pm-muted);
}
.eyebrow {
  display: flex;
  gap: 10px;
  align-items: center;
  line-height: 1.8;
}
.signal {
  width: 7px;
  height: 7px;
  background: var(--pm-signal);
  flex-shrink: 0;
}
h1 {
  font-size: clamp(44px, 5vw, 72px);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.055em;
  margin: 30px 0;
}
.intro {
  max-width: 450px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--pm-muted);
  margin-bottom: 32px;
}
.stage {
  margin-top: 18px;
  line-height: 1.8;
}
.overview {
  background: white;
  border: 1px solid var(--pm-line);
  border-radius: 6px;
  padding: 24px;
}
.overview-title {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--pm-line);
  font-size: 10px;
}
.overview-row {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--pm-line);
}
h2 {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.overview p,
.principles p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--pm-muted);
  margin: 0;
}
.overview .overview-note {
  font-size: 10px;
  padding-top: 20px;
}
.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  padding: 36px 0 64px;
  border-top: 1px solid var(--pm-line);
}
.principles h2 {
  margin-top: 16px;
}
footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid var(--pm-line);
  font-size: 12px;
  color: var(--pm-muted);
}
.skip {
  position: absolute;
  left: 16px;
  top: -100px;
  padding: 12px;
  background: white;
}
.skip:focus {
  top: 12px;
}
@media (max-width: 850px) {
  .hero {
    gap: 40px;
    padding-top: 64px;
  }
  .shell {
    padding: 0 24px;
  }
}
@media (max-width: 650px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 48px 0;
  }
  .principles {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .header .button {
    padding: 10px 12px;
    gap: 10px;
    font-size: 12px;
  }
  .brand {
    font-size: 19px;
  }
  footer {
    flex-wrap: wrap;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}