:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #5f6b75;
  --paper: #f7f8f8;
  --white: #ffffff;
  --teal: #138b86;
  --teal-dark: #0d5f5b;
  --coral: #eb695f;
  --amber: #efb84a;
  --line: #d9e0e2;
  --shadow: 0 18px 48px rgba(23, 32, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  letter-spacing: 0;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
}

a {
  color: var(--teal-dark);
}

a:hover {
  color: var(--coral);
}

.shell {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  border-bottom: 1px solid rgba(23, 32, 42, 0.1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 750;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  box-shadow: 0 5px 16px rgba(23, 32, 42, 0.18);
}

.site-nav {
  display: flex;
  gap: 22px;
  font-size: 14px;
  font-weight: 650;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  align-items: center;
  gap: 56px;
  padding: 88px 0 72px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 1.02;
  font-weight: 830;
}

.hero-copy {
  max-width: 690px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.6;
}

.hero-mark {
  width: 220px;
  height: 220px;
  border-radius: 48px;
  box-shadow: var(--shadow);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  border-radius: 7px;
  color: var(--ink);
  font-weight: 720;
  text-decoration: none;
}

.button.primary {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.band {
  border-top: 1px solid var(--line);
  padding: 56px 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 36px;
}

.feature {
  border-top: 5px solid var(--teal);
  padding-top: 20px;
}

.feature:nth-child(2) {
  border-color: var(--coral);
}

.feature:nth-child(3) {
  border-color: var(--amber);
}

.feature h2 {
  font-size: 20px;
}

.feature p,
.prose p,
.prose li {
  color: var(--muted);
  line-height: 1.7;
}

.page-header {
  max-width: 760px;
  padding: 76px 0 42px;
}

.page-header h1 {
  font-size: clamp(40px, 6vw, 68px);
}

.page-header p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.prose {
  max-width: 780px;
  padding-bottom: 80px;
}

.prose section {
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

.prose h2 {
  margin-bottom: 12px;
  font-size: 23px;
}

.prose h3 {
  margin: 26px 0 8px;
  font-size: 17px;
}

.prose ul,
.prose ol {
  padding-left: 22px;
}

.callout {
  border-left: 5px solid var(--teal);
  padding: 18px 22px;
  background: var(--white);
  box-shadow: 0 9px 28px rgba(23, 32, 42, 0.07);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 30px 0 46px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.site-footer nav {
  display: flex;
  gap: 18px;
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 28px, 1080px);
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding: 16px 0;
  }

  .site-nav {
    gap: 16px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 60px 0 54px;
  }

  .hero-mark {
    grid-row: 1;
    width: 128px;
    height: 128px;
    border-radius: 28px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
  }
}