.footer {
  background: #ffa500;
  color: #fefcff;
  padding-top: 28px;
}
.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  padding: 0 16px 20px;
}
.footer-box h3 { margin: 0 0 10px 0; color: #fff; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin: 6px 0; }
.footer-links a { color: #fefcff; text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }
.brand-name { margin: 0; color: #fefcff; font-weight: 800; letter-spacing: 1px; }
.tagline { margin-top: 6px; opacity: 0.9; }

/* Social Icons */
.social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #ffffff1a;
  color: #fefcff;
  margin-right: 8px;
  text-decoration: none;
  font-size: 22px;
  transition: all 0.3s ease;
}
.social-icons a:hover {
  background: #fefcff;
  color: #000080;
  transform: scale(1.1);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  text-align: center;
  padding: 12px 10px 16px;
  color: #fefcff;
}

/* Responsive */
@media (max-width: 900px) {
  .footer-container { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .main-section { padding: 18px; }
  .section-title { font-size: 22px; }
  .footer-container { grid-template-columns: 1fr; }
}
/* ==== Mobile Center Align ==== */
@media (max-width: 600px) {
  .footer-container {
    grid-template-columns: 1fr;
    text-align: center; /* সবকিছু center */
  }

  .footer-box,
  .footer-links,
  .footer-bottom {
    text-align: center;
  }

  .social-icons {
    justify-content: center; /* social icons center এ */
  }
}

/* ==== Body rounded look ==== */
body {
  border-radius: 18px;              /* চারপাশে round */
  margin: 8px;                      /* browser edge থেকে gap */
  overflow: hidden;                 /* round এর বাইরে কিছু যাবে না */
  box-shadow: 0 0 28px rgba(0,0,0,0.25); /* সুন্দর shadow effect */
}