.footer {
  background: #0b0b0b;
  color: #ccc;
  padding-top: 80px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 60px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-col h3 {
  font-size: 26px;
  color: #fff;
  margin-bottom: 15px;
}

.footer-col h4 {
  font-size: 18px;
  color: #fff;
  margin-bottom: 15px;
}

.footer-col p {
  font-size: 15px;
  line-height: 1.6;
  color: #aaa;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  font-size: 14px;
  margin-bottom: 10px;
  color: #aaa;
}

.footer-btn {
  display: inline-block;
  margin-top: 20px;
  background: #25d366;
  color: #fff;
  padding: 12px 24px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: bold;
}

.footer-bottom {
  border-top: 1px solid #222;
  padding: 20px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #777;
}

@media (max-width: 900px) {
  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-btn {
    margin-left: auto;
    margin-right: auto;
  }
}