.app-footer {
  width: 100%;
  margin-top: 48px;
  background: linear-gradient(180deg, #ffffff 0%, #f6f8fb 100%);
  border-top: 1px solid rgba(74, 144, 226, 0.15);
  box-shadow: 0 -10px 30px rgba(15, 23, 42, 0.06);
  color: #334155;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px 34px;
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-column h4 {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #0f172a;
}

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

.footer-column li {
  margin-bottom: 10px;
}

.footer-column a {
  color: #475569;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-column a:hover {
  color: #2563eb;
}

.footer-brand-column {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.footer-logo-image {
  display: block;
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  object-fit: contain;
}

.footer-brand-text {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-logo {
  font-size: 26px;
  line-height: 1;
  font-weight: 700;
  color: #0f172a;
}

.footer-tagline {
  margin: 0;
  max-width: 320px;
  color: #64748b;
  font-size: 14px;
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid rgba(100, 116, 139, 0.18);
  padding: 18px 20px 24px;
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 12px;
  color: #64748b;
}

@media screen and (max-width: 1024px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media screen and (max-width: 640px) {
  .footer-content {
    grid-template-columns: 1fr;
    padding: 40px 20px 24px;
    gap: 24px;
  }
}