* { box-sizing: border-box; }
body {
  max-width: 34rem;
  margin: 0 auto;
  padding: 3rem 1rem;
  font: 15px/1.5 "Helvetica Neue", Arial, sans-serif;
  color: #1a1a1a;
  background: #ffffff;
}
h1 { font-size: 1.6rem; margin: 0 0 0.4rem; }
.tagline { color: #666; margin: 0 0 2rem; font-size: 0.95rem; }
.feature { border-left: 3px solid #1a73e8; padding-left: 0.8rem; margin: 1.2rem 0; }
.feature h3 { margin: 0 0 0.2rem; font-size: 1rem; }
.feature p { margin: 0; color: #555; font-size: 0.9rem; }
.btn { display: inline-block; background: #1a73e8; color: #fff; padding: 0.5rem 1rem; border-radius: 4px; text-decoration: none; font-size: 0.9rem; margin-top: 1rem; }
footer { margin-top: 3rem; color: #999; font-size: 0.8rem; }
a { color: #1a73e8; }