/* ==================================================
       FOOTER
       ================================================== */
.footer {
  background: #111;
  color: #ccc;
  padding: 60px 0 30px;
  font-size: 14px;
}

.footer .container {
  max-width: 1200px;
  margin: auto;
  padding: 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
}

.footer h3, 
.footer h4 {
  color: #fff;
  margin-bottom: 15px;
}

.footer p {
  line-height: 1.7;
}

.footer ul {
  list-style: none;
  padding: 0;
}

.footer ul li {
  margin-bottom: 8px;
}

.social-links a {
  display: inline-block;
  margin-right: 12px;
  color: #ccc;
  text-decoration: none;
}

.social-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid #333;
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  color: #888;
}


.fb-float {
  position: fixed;
  bottom: 18px;

  /* Giới hạn icon trong khung web */
  right: calc((100vw - 1200px) / 2 + 18px);

  width: 48px;
  height: 48px;
  background: #1877f2;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;

  box-shadow: 0 10px 25px rgba(24,119,242,0.4);
  z-index: 9999;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.fb-float svg {
  width: 22px;
  height: 22px;
  fill: #fff;
}

.fb-float:hover {
  transform: scale(1.08);
  box-shadow: 0 14px 30px rgba(24,119,242,0.6);
}
@media (max-width: 1240px) {
  .fb-float {
    right: 16px;
  }
}