:root {
  color-scheme: light;
  --ink: #111827;
  --muted: #5f6b7a;
  --line: #dbe4f0;
  --surface: #ffffff;
  --wash: #f5f8ff;
  --cyan: #25b7f3;
  --violet: #7c5cfa;
  --mix: #3f7ff2;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: linear-gradient(135deg, #f7fbff 0%, #f6f4ff 100%);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

a {
  color: #2563eb;
  font-weight: 700;
}

.page-shell {
  width: min(1040px, 100%);
  margin: 0 auto;
  padding: 56px 20px;
}

.page-shell.narrow {
  width: min(820px, 100%);
}

.hero {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 36px;
  align-items: center;
  padding: 42px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 24px 70px rgba(56, 74, 120, 0.14);
}

.app-icon,
.small-icon {
  display: block;
  width: 100%;
  border-radius: 24px;
  box-shadow: 0 18px 42px rgba(63, 127, 242, 0.26);
}

.small-icon {
  width: 76px;
  border-radius: 18px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--mix);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 5.4rem);
  line-height: 1;
  letter-spacing: 0;
}

.page-header h1 {
  font-size: clamp(2rem, 6vw, 3.6rem);
}

h2 {
  margin: 0 0 10px;
  font-size: 1.25rem;
}

h3 {
  margin: 18px 0 6px;
  font-size: 1rem;
}

p {
  margin: 0;
}

.lead {
  max-width: 620px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 1.08rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 8px;
  text-decoration: none;
}

.button.primary {
  color: white;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
}

.button.secondary {
  color: var(--ink);
  background: var(--wash);
  border: 1px solid var(--line);
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.content-grid article,
.support-section {
  padding: 22px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.content-grid p,
.support-section p {
  color: var(--muted);
}

.page-header {
  display: flex;
  gap: 18px;
  align-items: center;
  margin-bottom: 28px;
}

.support-section + .support-section {
  margin-top: 14px;
}

.footer-nav {
  display: flex;
  gap: 18px;
  margin-top: 28px;
}

@media (max-width: 720px) {
  .page-shell {
    padding: 28px 14px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 26px;
  }

  .app-icon {
    width: 132px;
  }

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