/* Accepted 2026-09-06: dark-only landing. Single lockup at min(1600px, 94vw).
   Do not reintroduce a theme toggle or shrink the logo unless asked. */
:root {
  color-scheme: dark;
  --navy: #0B2A4A;
  --night: #071A2E;
  --cyan: #2EE0FF;
  --cyan-text: #00B8D9;
  --snow: #FFFFFF;
  --muted: #9AA8B4;
}

* { box-sizing: border-box; }

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

body {
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 50% 42%, rgba(11, 42, 74, 0.95) 0%, var(--night) 62%);
  color: var(--snow);
  font-family: "Avenir Next", "Segoe UI", system-ui, sans-serif;
}

main {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.25rem 0.75rem 2rem;
  text-align: center;
}

.logo {
  display: block;
  width: min(1600px, 94vw);
  height: auto;
  filter: drop-shadow(0 18px 40px rgba(0, 0, 0, 0.35));
}

.tag {
  margin: 1.75rem 0 0;
  padding-top: 1.15rem;
  border-top: 1px solid color-mix(in srgb, var(--cyan) 35%, transparent);
  color: var(--muted);
  letter-spacing: 0.34em;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 500;
}

.back {
  margin: 1.25rem 0 0;
}

a {
  color: var(--cyan-text);
  text-decoration: none;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

a:hover { color: var(--cyan); }