* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #111827;
  background: #f6f7fb;
  line-height: 1.6;
}

a {
  color: #111827;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1080px, 92%);
  margin: 0 auto;
}

.narrow {
  width: min(760px, 92%);
}

.site-header {
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: #111827;
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 18px;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
}

.brand-tagline {
  font-size: 12px;
  color: #6b7280;
}

.nav {
  display: flex;
  gap: 16px;
  font-size: 14px;
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero {
  padding: 60px 0 40px;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  align-items: center;
}

.hero h1 {
  font-size: 36px;
  line-height: 1.2;
  margin-bottom: 12px;
}

.cta-row {
  margin-top: 20px;
}

.cta-label {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 12px;
  background: #111827;
  color: #fff;
  font-weight: 600;
  font-size: 14px;
}

.hero-card {
  background: #fff;
  border-radius: 18px;
  padding: 20px;
  box-shadow: 0 20px 40px rgba(17, 24, 39, 0.08);
}

.hero-card-title {
  font-weight: 700;
  margin-bottom: 12px;
}

.hero-card ul {
  padding-left: 18px;
  margin: 0;
}

.section {
  padding: 40px 0;
}

.card {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  margin: 20px 0;
  border: 1px solid #e5e7eb;
}

.site-footer {
  padding: 28px 0;
  border-top: 1px solid #e5e7eb;
  background: #fff;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-text {
  font-size: 12px;
  color: #6b7280;
}

.footer-links {
  display: flex;
  gap: 16px;
  font-size: 14px;
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: 28px;
  }
  .nav {
    width: 100%;
    justify-content: flex-start;
  }
}