:root {
  color-scheme: light;
  --bg-start: #f4f7ff;
  --bg-end: #eaf0ff;
  --surface: rgba(255, 255, 255, 0.92);
  --border: rgba(59, 130, 246, 0.14);
  --text: #1f2937;
  --muted: #4b5563;
  --primary: #2563eb;
  --primary-deep: #1d4ed8;
  --shadow: 0 28px 60px rgba(37, 99, 235, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, var(--bg-start) 0%, var(--bg-end) 100%);
  color: var(--text);
}

.shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 48px 0 64px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero {
  padding: 42px 38px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary-deep);
  font-weight: 700;
  letter-spacing: 0.01em;
}

h1 {
  margin: 18px 0 12px;
  font-size: clamp(44px, 6vw, 72px);
  line-height: 0.98;
}

h2 {
  margin: 0 0 14px;
  font-size: 28px;
  line-height: 1.08;
}

.lead,
.feature-card p,
.flow-copy p,
.flow-copy li {
  margin: 0;
  font-size: 18px;
  line-height: 1.7;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.primary-button {
  background: var(--primary);
  color: white;
  box-shadow: 0 16px 30px rgba(37, 99, 235, 0.25);
}

.secondary-button {
  background: rgba(255, 255, 255, 0.84);
  color: var(--primary-deep);
  border: 1px solid rgba(37, 99, 235, 0.16);
}

.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-1px);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.feature-card,
.flow-card {
  padding: 28px 28px 30px;
}

code {
  display: inline-flex;
  margin-top: 16px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.06);
  color: #0f172a;
  font-size: 15px;
  word-break: break-all;
}

.flow-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 28px;
  margin-top: 20px;
}

.flow-copy ul {
  margin: 18px 0 0;
  padding-left: 20px;
}

.flow-steps {
  display: grid;
  gap: 14px;
}

.step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(37, 99, 235, 0.05);
}

.step span {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--primary);
  color: white;
  font-weight: 800;
}

.step p {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
}

@media (max-width: 860px) {
  .shell {
    width: min(100vw - 20px, 1120px);
    padding: 18px 0 32px;
  }

  .hero,
  .feature-card,
  .flow-card {
    padding: 24px 20px;
    border-radius: 24px;
  }

  .grid,
  .flow-card {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(36px, 11vw, 56px);
  }
}