:root {
  --bg: #000000;
  --fg: #f4f4f4;
  --muted: #c7c7c7;
  --line: #202020;
}

* {
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
  background: radial-gradient(circle at 50% -10%, #1a1a1a 0%, var(--bg) 55%);
  color: var(--fg);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(0, 0, 0, 0.85);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

.top-nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.65rem 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0;
  text-decoration: none;
}

.brand-logo {
  width: clamp(78px, 11vw, 120px);
  height: auto;
  display: block;
}

.nav-links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links a {
  color: var(--fg);
  text-decoration: none;
  font-size: 0.95rem;
  opacity: 0.9;
}

.nav-links a:hover {
  opacity: 1;
  text-decoration: underline;
}

.hero {
  min-height: calc(100vh - 84px);
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 0.9rem;
  padding: 1.5rem;
  text-align: left;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

h1 {
  margin: 0;
  font-size: clamp(1.9rem, 5vw, 3rem);
  line-height: 1.12;
}

.message {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  color: var(--muted);
}

.streetpass {
  margin-top: 0.8rem;
  font-size: clamp(1rem, 2.1vw, 1.2rem);
  font-weight: 600;
}

@media (max-width: 480px) {
  .top-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .nav-links {
    gap: 0.8rem;
  }

  .hero {
    padding: 1rem;
    min-height: calc(100vh - 128px);
  }
}