:root {
  --bg: #ffffff;
  --fg: #111;
  --muted: #555;
  --accent: #000;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  line-height: 1.5;
}

main {
  text-align: center;
  max-width: 520px;
}

.logo {
  width: 180px;
  height: auto;
  margin-bottom: 1.5rem;
}

h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.tagline {
  font-size: 1.15rem;
  color: var(--fg);
  margin: 0 0 1.5rem;
  font-weight: 500;
}

.summary {
  color: var(--muted);
  margin: 0 0 2rem;
}

.contact {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  font-weight: 500;
}

.contact:hover {
  opacity: 0.7;
}

@media (max-width: 480px) {
  .logo {
    width: 140px;
  }
  h1 {
    font-size: 1.75rem;
  }
}