:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #20212a;
  background: #f5f6fb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  line-height: 1.75;
  background:
    radial-gradient(circle at top left, #e8f4ff 0, transparent 34rem),
    radial-gradient(circle at top right, #fff0e8 0, transparent 32rem),
    #f5f6fb;
}

a { color: #2858c5; }

.container {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 32px;
}

.hero {
  display: flex;
  gap: 24px;
  align-items: center;
  padding: 32px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(25, 32, 56, 0.08);
  border-radius: 28px;
  box-shadow: 0 18px 48px rgba(35, 43, 78, 0.08);
}

.app-mark {
  display: grid;
  place-items: center;
  width: 96px;
  height: 96px;
  flex: 0 0 auto;
  border-radius: 24px;
  color: white;
  font-size: 48px;
  background: linear-gradient(135deg, #3478f6, #705cf6 52%, #ff6c8c);
}

.eyebrow {
  margin: 0;
  color: #64708c;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.14em;
}

h1 { margin: 4px 0 8px; line-height: 1.2; }
h2 { margin-top: 1.6em; line-height: 1.35; }
.lead { margin: 0; color: #515972; }
.muted { color: #697188; }

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0;
}

nav a, .button {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 999px;
  color: white;
  text-decoration: none;
  font-weight: 650;
  background: #315fd1;
}

.card {
  margin: 22px 0;
  padding: 28px 32px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(25, 32, 56, 0.08);
  border-radius: 24px;
  box-shadow: 0 12px 36px rgba(35, 43, 78, 0.06);
}

.card h2:first-child { margin-top: 0; }
.document { max-width: 780px; }
footer { padding: 18px 0; color: #747b90; text-align: center; }

@media (max-width: 600px) {
  .container { padding-top: 24px; }
  .hero { align-items: flex-start; padding: 24px; }
  .app-mark { width: 72px; height: 72px; border-radius: 18px; font-size: 36px; }
  .card { padding: 22px; border-radius: 20px; }
}