:root {
  --primary: #0b2a4a;
  --accent: #19d3c5;
  --bg: #ffffff;
  --text: #0b2a4a;
  --muted: #4a647f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto,
               Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
}

/* Contenedor principal */
.card {
  width: min(900px, 92vw);
  padding: clamp(24px, 5vw, 56px);
  border-radius: 20px;
  background: #ffffff;
  box-shadow: 0 12px 40px rgba(11, 42, 74, 0.15);
  text-align: center;
}

/* Logo */
.logo {
  max-width: 420px;
  width: 80%;
  margin: 0 auto 28px;
  display: block;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    var(--accent),
    #3bb0ff
  );
  color: #ffffff;
  font-weight: 600;
  margin-bottom: 28px;
}

/* Título */
h1 {
  font-size: clamp(28px, 6vw, 56px);
  margin: 0 0 8px;
  letter-spacing: 0.3px;
}

/* Texto secundario */
.tagline {
  font-size: clamp(16px, 3.2vw, 20px);
  color: var(--muted);
  margin-bottom: 28px;
}

/* Footer */
footer {
  margin-top: 36px;
  font-size: 14px;
  color: var(--muted);
}