footer {
  background: linear-gradient(135deg, #0f172ad0 0%, #1e293bd2 100%);
  color: white;
  padding: 3rem 5% 1rem;
  margin-top: auto;
}
.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}
.footer-section img {
  width: 100px;
  height: 60px;
  filter: invert(100%);
}
.footer-section h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: #3b82f6;
  font-weight: 600;
}
.footer-section p,
.footer-section li {
  color: #cbd5e1;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}
.footer-section ul {
  list-style: none;
}
.footer-section a {
  color: #cbd5e1;
  transition: color 0.3s ease;
}
.footer-section a:hover {
  color: #3b82f6;
}
.social-links {
  display: flex;
  gap: 0.8rem;
  margin-top: 1rem;
}
.social-links a {
  width: 35px;
  height: 35px;
  background: rgba(59, 130, 246, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}
.social-links a:hover {
  background: #3b82f6;
  transform: translateY(-2px);
}
.footer-nav {
  display: none;
}
.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid #334155;
  color: #94a3b8;
  font-size: 0.9rem;
}

@media (max-width: 768px){
    .footer-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    padding: 0.5rem 0;
    padding-bottom: env(safe-area-inset-bottom, 0.5rem);
  }
  .footer-nav ul {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    justify-content: space-around;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
  }
  .footer-nav a {
    color: white;
    font-weight: 500;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    padding: 0.5rem;
    font-size: 0.75rem;
    transition: all 0.3s ease;
  }
  .footer-nav a:hover {
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.1);
  }
  .footer-nav a.active {
    color: #3b82f6;
  }
  .footer-nav .highlight {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    color: white;
    padding: 0.6rem;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 6px 15px rgba(59, 130, 246, 0.3);
    border-radius: 5px;
  }
  .footer-nav .highlight:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.5);
  }
  .footer-nav .highlight:active {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
  }
  .footer-content {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .footer-section {
    margin-bottom: 1rem;
  }
  .footer-bottom {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .footer-nav a {
    padding: 0.4rem 0.6rem;
    font-size: 0.7rem;
  }
  .footer-nav .highlight {
    padding: 0.5rem 0.7rem;
    font-size: 0.75rem;
  }
  .footer-content {
    gap: 1.5rem;
  }
  .footer-section h3 {
    font-size: 1.1rem;
  }
  .footer-section p,
  .footer-section li {
    font-size: 0.85rem;
  }
}