:root {
  --ink: #17231f;
  --muted: #697772;
  --line: #dce7e2;
  --brand: #1f6b59;
  --brand-soft: #e8f4ef;
  --paper: #fbfdfb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #eef8f4, transparent 34rem), var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.shell {
  width: min(980px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 72px 0;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(34px, 6vw, 68px);
  line-height: .95;
  letter-spacing: -.05em;
}

.lede {
  max-width: 620px;
  margin: 18px 0 36px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.card {
  display: grid;
  min-height: 190px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 24px 70px rgba(27, 55, 47, .08);
  text-decoration: none;
}

.card span {
  color: var(--brand);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.card strong {
  align-self: center;
  font-size: 24px;
  line-height: 1.12;
  letter-spacing: -.025em;
}

.card em {
  align-self: end;
  color: var(--muted);
  font-style: normal;
  font-weight: 700;
}

.app-page {
  overflow: hidden;
  background: #f6faf8;
}

.app-header {
  display: grid;
  grid-template-columns: 150px 1fr auto;
  align-items: center;
  gap: 20px;
  height: 86px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .94);
}

.app-header h1 {
  font-size: clamp(22px, 3vw, 34px);
}

.back-link,
.open-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--brand);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.open-link {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.demo-frame {
  display: block;
  width: 100vw;
  height: calc(100vh - 86px);
  border: 0;
  background: #fff;
}

.fallback {
  padding: 24px;
}

@media (max-width: 760px) {
  .app-header {
    grid-template-columns: 1fr;
    height: auto;
  }

  .demo-frame {
    height: calc(100vh - 170px);
  }
}