body {
  margin: 0;
  padding: 0;
  background: #fff;
  color: #222;
  font-family: "IBM Plex Mono", monospace;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  padding: 2.5rem 1rem 1.5rem 1rem;
  text-align: center;
}

.site-title {
  font-size: 2.1rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.01em;
}

.site-logo {
  display: block;
  margin: 0 auto 1.2rem auto;
  max-width: 90px;
  height: auto;
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero {
  max-width: 600px;
  width: 100%;
  margin: 0 auto;
  text-align: center;
  padding: 2rem 1rem 2.5rem 1rem;
}

.hero-line {
  font-size: 1.45rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
  margin-top: 0;
  line-height: 1.3;
}

.subtext {
  font-size: 1.05rem;
  font-weight: 400;
  margin-bottom: 2.2rem;
  margin-top: 0;
  color: #444;
}

.cta-button {
  display: inline-block;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.75em 2em;
  color: #fff;
  background: #222;
  border: none;
  border-radius: 2em;
  text-decoration: none;
  transition: background 0.15s;
  cursor: pointer;
  letter-spacing: 0.02em;
}

.cta-button:hover,
.cta-button:focus {
  background: #444;
}

footer {
  text-align: center;
  font-size: 0.98rem;
  color: #888;
  padding: 1.5rem 1rem 1.2rem 1rem;
}

@media (max-width: 600px) {
  .hero {
    max-width: 96vw;
    padding: 2rem 0.5rem 2.5rem 0.5rem;
  }
  .hero-line {
    font-size: 1.1rem;
  }
  .site-title {
    font-size: 1.2rem;
  }
  .site-logo {
    max-width: 60px;
    margin-bottom: 1rem;
  }
}