:root {
  --bg: #0b0e13;
  --bg-accent: #131a24;
  --text: #f5f7fb;
  --muted: #b9c1d1;
  --brand: #74d4ff;
  --brand-strong: #4abfff;
  --border: rgba(255, 255, 255, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, #172235 0%, var(--bg) 55%);
}

body {
  min-height: 100vh;
  display: grid;
  grid-template-rows: 1fr auto;
}

.hero {
  max-width: 900px;
  margin: 0 auto;
  padding: 5rem 1.5rem 2rem;
  text-align: center;
}

.logo {
  width: min(340px, 78vw);
  height: auto;
  margin-bottom: 1rem;
  filter: drop-shadow(0 8px 30px rgba(0, 0, 0, 0.35));
}

h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  margin: 0.3rem 0;
  letter-spacing: 0.02em;
}

.tagline {
  margin: 0.3rem 0 1.5rem;
  color: var(--muted);
  font-size: clamp(1rem, 2.1vw, 1.2rem);
}

.cta {
  display: inline-block;
  text-decoration: none;
  color: #021423;
  background: linear-gradient(90deg, var(--brand), var(--brand-strong));
  padding: 0.8rem 1.2rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 120ms ease, opacity 120ms ease;
}

.cta:hover {
  transform: translateY(-1px);
  opacity: 0.95;
}

.content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem;
  backdrop-filter: blur(4px);
}

.card h2 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.card p {
  margin: 0;
  line-height: 1.65;
  color: #d7deea;
}

.footer {
  border-top: 1px solid var(--border);
  background-color: var(--bg-accent);
  text-align: center;
  color: var(--muted);
  padding: 1rem;
}