@media (max-width: 1024px) {
  .topbar { display: none; }
  .navbar { 
    top: 0;
    padding: clamp(10px, 2vw, 15px) clamp(5px, 1vw, 15px) clamp(3px, 0.8vw, 8px); 
    flex-wrap: wrap; 
    justify-content: space-between; 
  }
  .nav-container { 
    display: none;
    width: 100%; 
    flex-direction: column; 
    align-items: center; 
    padding: 1rem 0; 
    background: #fff; 
    position: absolute; 
    top: 100%; 
    left: 0; 
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1); 
  }
  .nav-container.is-active { display: flex; }
  .nav-links {
    flex-direction: column;
    width: 100%;
    gap: 0.5rem;
  }
  .nav-links a { 
    display: block; 
    width: 100%; 
    text-align: center; 
    font-size: clamp(14px, 1.5vw, 16px); 
  }
  .burger { display: block; margin-left: auto; }
  .search-bar { margin: 0.5rem 0; width: 90%; }
  .navbar .btn { 
    margin: 0.5rem 0; 
    font-size: clamp(12px, 1.2vw, 14px); 
    width: 90%;
    text-align: center;
  }
  .hero { 
    min-height: 80vh; 
    padding-top: clamp(80px, 10vw, 120px); 
  }
  .hero-content { padding: clamp(10px, 2vw, 20px); }
  .hero-content h1 { font-size: clamp(1.5rem, 4vw, 3rem); }
  .hero-content p { font-size: clamp(0.9rem, 1.8vw, 1.2rem); }
  .footer-content { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
}

@media (max-width: 768px) {
  .navbar { padding: clamp(8px, 1.5vw, 12px) clamp(5px, 1vw, 10px) clamp(2px, 0.5vw, 5px); }
  .logo { height: clamp(40px, 5vw, 60px); }
  .hero { padding-top: clamp(70px, 9vw, 100px); }
  .hero-content h1 { font-size: clamp(1.2rem, 3.5vw, 2.5rem); }
  .hero-content p { font-size: clamp(0.8rem, 1.5vw, 1rem); }
  .hero-content .btn { padding: 0.6rem 1.5rem; font-size: clamp(10px, 1vw, 14px); }
  .grid { flex-direction: column; align-items: center; }
  .card { flex: 1 1 100%; max-width: 90%; }
  .section { padding: 8vw 4vw; }
  .footer-top { margin-bottom: 1rem; }
  .footer-content { grid-template-columns: 1fr; gap: 1rem; }
  .footer-section { padding: 0.3rem; }
}

@media (min-width: 1920px) {
  .section { padding: 100px 40px; }
  .content-section { padding-top: 150px; }
  h1 { font-size: 4.5rem; }
  h2 { font-size: 3.5rem; }
  .grid { gap: 30px; }
}