* { box-sizing: border-box; font-family: "Century", serif; text-align: center; }

body{
    margin: 0;
    padding: 0;
}

header, footer {
  background: Indigo;
  color: white;
  font-style: italic;
  padding: 2px;
}

main {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  padding: 20px;
}

.blok {
  width: calc(50% - 30px);
  height: 470px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}

img {
  display: block;
  max-width: 100%;
  padding: 3px;            
  margin: 10px;            
  border: 2px dotted SlateBlue;
  object-fit: cover;
}


#img1 { width: 500px; height: auto; }

button {
  background: SlateBlue;
  color: white;
  border: none;
  padding: 10px 20px;
  margin-top: 10px;
  cursor: pointer;
}
button:hover { background: Indigo; }

input[type="range"] { width: 80%; }

.opcje { margin-bottom: 10px; }

@media (max-width: 900px) {
  .blok { width: 100%; }
  #img1 { width: 100%; }
}