:root {
  color-scheme: dark;
  --bg: #0b0c10;
  --bg-glow: #1f2833;
  --fg: #f5f5f5;
  --accent: #66fcf1;
  --muted: #9aa5ab;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: radial-gradient(circle at 50% 20%, var(--bg-glow), var(--bg) 65%);
  color: var(--fg);
  font-family: "Helvetica Neue", Arial, sans-serif;
  text-align: center;
  padding: 2rem;
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.title {
  margin: 0;
  font-size: clamp(3rem, 12vw, 7rem);
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  background: linear-gradient(120deg, var(--accent), var(--fg));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  margin: 0;
  font-size: clamp(0.9rem, 2.2vw, 1.25rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.footer {
  position: fixed;
  bottom: 1.5rem;
  left: 0;
  right: 0;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}

.footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.footer a:hover,
.footer a:focus {
  text-decoration: underline;
}