/* WordSpring marketing site — dogfooding the platform. */
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 17px/1.6 system-ui, -apple-system, sans-serif;
  color: #0f172a;
}
.site-header {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  padding: 16px 24px;
  border-bottom: 1px solid #e2e8f0;
}
.brand { font-weight: 800; font-size: 20px; text-decoration: none; color: inherit; }
.site-header nav { display: flex; gap: 20px; }
.site-header nav a { text-decoration: none; color: #334155; }

main { max-width: 880px; margin: 0 auto; padding: 24px; }
section { margin: 56px 0; }

.hero h1 { font-size: clamp(30px, 5.5vw, 52px); line-height: 1.15; letter-spacing: -0.02em; }
.hero-sub { font-size: 20px; color: #475569; max-width: 40em; }

.features {
  display: grid; gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.features > div {
  background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px;
  padding: 8px 20px;
}

.ws-video { position: relative; aspect-ratio: 16 / 9; margin: 16px 0; }
.ws-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

img { max-width: 100%; height: auto; }

.site-footer {
  border-top: 1px solid #e2e8f0;
  padding: 24px; text-align: center;
  color: #64748b; font-size: 14px;
}