.all{

position: absolute;
align-items: center;
    background: url('portofolio_1920x1080.jpg') right no-repeat;
    background-size: cover;
    width: 100%;
    height:100vh;
    color: aliceblue;
    
}
#tentang-saya{

  padding-top: 20rem;
  color: #fff;

}



.tombol button {
    
  background: rgba(255, 255, 255, 0.1); 
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(4px); 
  border-radius: 25px;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
}


.tombol button:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.05);
}



footer {
    display: flex;
  position: fixed;          
  bottom: 0;                
  left: 100px;                  
  width: 100%;              
  background: rgba(0, 0, 0, 0.6);
  color: white;
  text-align: start;
}
.social_media i{
    padding: 0 5px;
    color: #fff;
    opacity: 0.6s;
    font-size: 20px;
    transition: all 0.2s linear;

}

@media (max-width: 1024px) {
  .judul h1 {
    font-size: 38px;
  }
  .judul h2 {
    font-size: 24px;
  }
  .judul h4 {
    font-size: 20px;
  }
  .tombol button {
    font-size: 14px;
    padding: 8px 18px;
  }
}


@media (max-width: 768px) {
  .all {
    flex-direction: column;
    justify-content: center;
    text-align: center;
    background-position: center;
  }

  .judul h1,
  .judul h2,
  .judul h4 {
    margin-left: 0;
  }

  .tombol {
    justify-content: center;
    margin-left: 0;
  }

  footer {
    flex-direction: column;
    text-align: center;
    padding: 15px;
  }
}

/* Smartphone kecil (max 480px) */
@media (max-width: 480px) {
  .judul h1 {
    font-size: 28px;
  }
  .judul h2 {
    font-size: 20px;
  }
  .judul h4 {
    font-size: 18px;
  }
  .tombol button {
    width: 100%;
    font-size: 14px;
  }
}