:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --panel: rgba(255,255,255,.82);
  --text: #111318;
  --muted: #5d6470;
  --hairline: rgba(17,19,24,.10);
  --shadow: 0 20px 60px rgba(17,19,24,.08);
  --mark-bg: #111318;
  --mark-text: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --panel: rgba(24,27,33,.82);
    --text: #f4f5f7;
    --muted: #a8afb9;
    --hairline: rgba(255,255,255,.10);
    --shadow: 0 20px 60px rgba(0,0,0,.28);
    --mark-bg: #f4f5f7;
    --mark-text: #111318;
  }
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 0%, rgba(127,127,127,.08), transparent 34rem),
    var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  display: grid;
  grid-template-rows: 1fr auto;
}

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  place-items: center;
  padding: 72px 0 40px;
}

.card {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: start;
  padding: clamp(28px, 5vw, 52px);
  background: var(--panel);
  border: 1px solid var(--hairline);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.mark {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: var(--mark-bg);
  color: var(--mark-text);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -.03em;
  user-select: none;
}

.eyebrow {
  margin: 2px 0 10px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 5.25rem);
  line-height: .98;
  letter-spacing: -.06em;
  font-weight: 750;
}

.lead {
  margin: 24px 0 0;
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  line-height: 1.4;
  letter-spacing: -.02em;
}

.body {
  max-width: 38rem;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.footer {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 0 0 28px;
  color: var(--muted);
  display: flex;
  gap: 10px;
  justify-content: center;
  font-size: .88rem;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid currentColor;
  outline-offset: 4px;
}

@media (max-width: 620px) {
  .shell {
    padding-top: 32px;
  }

  .card {
    grid-template-columns: 1fr;
    gap: 20px;
    border-radius: 22px;
  }

  .mark {
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}