*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #080808;
  --border: #1a1a1a;
  --text: #e0e0e0;
  --muted: #404040;
  --accent: #e0e0e0;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'SF Mono', 'Fira Code', 'Fira Mono', monospace;
  -webkit-font-smoothing: antialiased;
}

.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  pointer-events: none;
}

main {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

.brand {
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  font-weight: 500;
  letter-spacing: 0.35em;
  color: #fff;
}

.sub {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.links {
  margin-top: 1.5rem;
  display: flex;
  gap: 2rem;
}

.links a {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: color 0.15s, border-color 0.15s;
}

.links a:hover {
  color: var(--text);
  border-color: var(--muted);
}