/* Minimal black theme */
:root {
  --bg: #000;
  --fg: #fff;
  --dim: #bbb;
  --accent: #9efc53;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, sans-serif;
  text-rendering: optimizeLegibility;
}

.center {
  min-height: calc(100vh - 64px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 40px 20px;
}

h1 {
  margin: 16px 0 8px;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.tagline {
  color: var(--dim);
  margin: 0 0 16px;
}

.logo {
  width: 220px;
  height: auto;
  display: block;
  filter: drop-shadow(0 0 16px rgba(158,252,83,0.15));
}

.link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(158,252,83,0.4);
}

.link:hover {
  border-bottom-color: var(--accent);
}

footer {
  height: 64px;
  display: grid;
  place-items: center;
  color: var(--dim);
}