:root {
  --color-bg: #f7f8fa;
  --color-navy: #131f3d;
  --color-blue: #2f6fed;
  --color-text-muted: #5a6478;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--color-bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-navy);
}

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
  animation: fade-in 0.8s ease-out;
}

.hero__logo {
  width: 100%;
  max-width: 320px;
  height: auto;
  margin-bottom: 2rem;
}

.hero__headline {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-navy);
}

.hero__tagline {
  margin: 0;
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--color-text-muted);
  max-width: 32rem;
}

.footer {
  padding: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  .hero__logo {
    max-width: 240px;
  }
}