body {
    font-family: sans-serif;
}

.footer {
    background-color: #000;
    color: #fff;
    padding: 40px 20px;
}

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-left, .footer-center, .footer-right, .footer-terms {
    flex: 1 1 200px;
    margin: 20px;
}

/* .logo-circle {
    background-color: #fff;
    color: #000;
    border-radius: 50%;
    width: 100px;
    height: 100px;
    font-size: 40px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
} */

.logo-circle {
  background-color: #fff;
  color: #000;
  border-radius: 50%;
  width: 100px;
  height: 100px;
  font-size: 40px;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  overflow: hidden; /* IMPORTANTE para que la imagen también quede redonda */
}

.logo-circle img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}



.footer-left, .footer-center, .footer-right, .footer-terms {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.challenge {
    font-size: 24px;
    margin: 10px 0;
}

.certified-b {
    border: 2px solid white;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 14px;
}

.social-icons a {
    margin-right: 10px;
    color: #fff;
    text-decoration: none;
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 20px;
    text-align: center;
    font-size: 14px;
}

.footer-bottom nav a {
    color: #fff;
    margin: 0 10px;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h4 {
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-left, .footer-center, .footer-right, .footer-terms {
        margin: 20px 0;
        align-items: center;
        text-align: center;
    }

    .social-icons {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .footer-bottom nav {
        flex-direction: column;
        gap: 10px;
    }

    .footer-bottom nav a {
        display: block;
        margin: 5px 0;
    }
}