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

:root {
  --bg: #050b1a;
  --bg-glow: #0b2a5c;
  --text: #ffffff;
  --muted: #9db4d6;
  --accent: #00a2ff;
}

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

body {
  display: flex;
  align-items: center;      /* vertical center */
  justify-content: center;  /* horizontal center */
  min-height: 100vh;
  padding: 24px;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  color: var(--text);
  text-align: center;
  background: radial-gradient(ellipse at center, var(--bg-glow) 0%, var(--bg) 70%);
}

.wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 640px;
}

.logo {
  width: min(70vw, 420px);
  height: auto;
  margin-bottom: 8px;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(1.75rem, 6vw, 3rem);
  font-weight: 600;
  letter-spacing: 0.04em;
}

h1::after {
  content: "";
  display: block;
  width: 64px;
  height: 3px;
  margin: 16px auto 0;
  background: var(--accent);
  border-radius: 2px;
}

p {
  margin: 8px 0 0;
  max-width: 44ch;
  font-size: clamp(1rem, 3.5vw, 1.15rem);
  line-height: 1.6;
  color: var(--muted);
}