:root {
  --bg: #ffffff;
  --fg: #111;
}

* { box-sizing: border-box; }

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

main {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  gap: 0.75rem;
}

h1 {
  font-size: clamp(1.75rem, 6.5vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 0;
  overflow-wrap: anywhere;
  max-width: 100%;
}

.signature {
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  letter-spacing: -0.01em;
  margin: 0;
  opacity: 0.6;
}

h1.notfound {
  font-size: clamp(3rem, 10vw, 6rem);
  letter-spacing: -0.04em;
}