:root {
  --bg: #f5f5f7;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --line: rgba(0, 0, 0, 0.08);
  --blue: #0066cc;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

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

html {
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-weight: 400;
  letter-spacing: -0.022em;
  color-scheme: light;
}

::selection {
  background: var(--ink);
  color: #fff;
}

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

a {
  color: inherit;
}

p {
  margin: 0;
}

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 5;
  padding: 0.5rem 0.8rem;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
}

.skip:focus {
  top: 0.6rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  height: 48px;
  padding: 0 22px;
  background: rgba(251, 251, 253, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  line-height: 0;
  text-decoration: none;
}

.brand img {
  display: block;
  width: 24px;
  height: 24px;
}

.hero {
  min-height: calc(100svh - 48px - 53px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 72px 24px 88px;
}

.kicker {
  margin-bottom: 14px;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.012em;
}

h1 {
  margin: 0;
  font-size: clamp(5.5rem, 16vw, 10.5rem);
  font-weight: 600;
  line-height: 0.92;
  letter-spacing: -0.045em;
}

.hero h1 {
  font-size: 0;
  line-height: 0;
}

.mark {
  display: block;
  width: clamp(7.5rem, 22vw, 13rem);
  height: auto;
  margin: 6px auto 2px;
}

.headline {
  margin: 10px 0 0;
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  font-weight: 600;
  line-height: 1.07;
  letter-spacing: -0.03em;
}

.deck {
  max-width: 32rem;
  margin-top: 18px;
  color: var(--muted);
  font-size: 21px;
  font-weight: 400;
  line-height: 1.38;
  letter-spacing: -0.016em;
}

.text-link {
  margin-top: 18px;
  color: var(--blue);
  font-size: 17px;
  letter-spacing: -0.016em;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.site-footer {
  padding: 18px 22px 22px;
  border-top: 1px solid var(--line);
  text-align: center;
}

.site-footer p {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: -0.01em;
}

@media (max-width: 640px) {
  .deck {
    font-size: 19px;
  }

  .hero {
    padding: 56px 22px 72px;
  }

  .mark {
    width: clamp(6.5rem, 42vw, 9rem);
  }
}

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