body {
  color: #333;
  font-family: 'Open Sans', sans-serif;
  margin: 0;
  padding: 0;
}

main {
  margin: 40px;
}

h1 {
  font-size: 30px;
  margin-bottom: 40px;
}

.buttons {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  justify-content: center;
  justify-items: center;
  gap: 20px;
  max-width: 1300px;
  margin: 0 auto 60px;
}

.button_container {
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid #ddd;
  background-color: #fff;
  width: 300px;
  height: 300px;
  box-sizing: border-box;
  overflow: hidden;
  text-align: center;
  transition: transform 0.3s ease;
}

.button_container:hover {
  transform: scale(1.02);
}

.buttons::after {
  content: "";
  display: table;
  clear: both;
}


.brand-button {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
  border-radius: 25px;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.brand-logo {
  width: 70%;
  height: auto;
  transition: transform 0.4s ease, filter 0.4s ease, opacity 0.4s ease;
}

#btn_apple {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100px;
  height: 100px;
  background: none;
  border: none;
  overflow: hidden;
  cursor: pointer;
}


#btn_apple img {
  position: absolute;
  width: 100px;
  height: auto;
  transition: opacity 0.4s ease;
}


#btn_apple .black-logo {
  opacity: 1;
}


#btn_apple .silver-logo {
  opacity: 0;
}


#btn_apple:hover .black-logo {
  opacity: 0;
}

#btn_apple:hover .silver-logo {
  opacity: 1;
}


#btn_npr {
  background: none;
}

#btn_npr .brand-logo {
  width: 160px;
  filter: grayscale(100%) brightness(0.9) contrast(1.2);
}

#btn_npr:hover .brand-logo {
  filter: grayscale(0%) brightness(1) contrast(1);
}


#btn_instagram {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
}


#btn_instagram .brand-logo {
  width: 160px;
  height: auto;
  filter: grayscale(100%) brightness(0.9) contrast(1.2);
  transition: filter 0.5s ease, transform 0.3s ease;
}


#btn_instagram:hover .brand-logo {
  filter: grayscale(0%) brightness(1) contrast(1);
  transform: scale(1.05);
}


#btn_lyft {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 100px;
  color: #ff00bf;
  transition: all 0.3s ease;
}

#btn_lyft .brand-logo {
  width: 160px;
  transition: all 0.3s ease;
  transform: translate(0, -7px);
}

#btn_lyft:hover {
  transform: scale(1.2);
  background-color: #ff00bf;
  color: #fff;
}

#btn_lyft:hover .brand-logo {
  filter: brightness(0) invert(1);
}

#btn_facebook {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 100px;
  color: #1877f2;
  transition: all 0.3s ease;
  background: none;
  border: none;
}

#btn_facebook .brand-logo {
  width: 160px;
  transition: all 0.3s ease;
}


#btn_facebook:hover {
  transform: scale(1.2);
  background-color: #001aff;
  color: #fff;
}

#btn_facebook:hover .brand-logo {
  filter: brightness(0) invert(1);
}



#btn_cn {
  position: relative;
  display: flex;
  height: 100%;
  width: 100%;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#btn_cn .brand-logo {
  position: absolute;
  object-fit: contain;
  width: 240px;
  transition: opacity 0.15s linear;
}

#btn_cn .brand-logo--primary {
  opacity: 0;
}

#btn_cn:hover .brand-logo--primary {
  opacity: 1;
}

#btn_cn .brand-logo--alternate {
  opacity: 1;
}

#btn_cn:hover .brand-logo--alternate {
  opacity: 0;
}


#btn_nike {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 300px;
  height: 200px;
  background: none;
  cursor: pointer;
  overflow: hidden;
}


#btn_nike img {
  position: absolute;
  width: 250px;
  height: auto;
  transition: opacity 0.5s ease, transform 0.3s ease;
}


#btn_nike .nike-main {
  opacity: 1;
}


#btn_nike .nike-hover {
  opacity: 0;
}


#btn_nike:hover .nike-main {
  opacity: 0;
  transform: scale(1.05);
}

#btn_nike:hover .nike-hover {
  opacity: 1;
  transform: scale(1.05);
}

#btn_army {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 300px;
  height: 300px;
  background: none;
  cursor: pointer;
  overflow: hidden;
  border: none;
  transition: transform 0.3s ease;
}


#btn_army img {
  position: absolute;
  width: 250px;
  height: auto;
  transition: opacity 0.5s ease, transform 0.3s ease;
}


#btn_army .army-star {
  opacity: 1;
}


#btn_army .army-logo {
  opacity: 0;
}


#btn_army:hover .army-star {
  opacity: 0;
  transform: scale(1.05);
}

#btn_army:hover .army-logo {
  opacity: 1;
  transform: scale(1.05);
}



#btn_newyorker {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 300px;
  height: 250px;
  background: white;
  border: none;
  cursor: pointer;
  overflow: hidden;
  transition: background-color 0.4s ease, transform 0.3s ease;
}


#btn_newyorker img {
  position: absolute;
  width: 250px;
  height: auto;
  transition: opacity 0.6s ease, transform 0.3s ease;
}


#btn_newyorker .ny-top-hat {
  opacity: 1;
}


#btn_newyorker .ny-text {
  opacity: 0;
}


#btn_newyorker:hover {
  background-color: #fff;
  transform: scale(1.05);
}

#btn_newyorker:hover .ny-top-hat {
  opacity: 0;
  transform: scale(1.05);
}

#btn_newyorker:hover .ny-text {
  opacity: 1;
  transform: scale(1.05);
}


#btn_coke {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 300px;
  height: 150px;
  background: white;
  border: none;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.3s ease;
}


#btn_coke img {
  position: absolute;
  width: 250px;
  height: auto;
  transition: opacity 0.5s ease, transform 0.3s ease;
}


#btn_coke .coke-red {
  opacity: 1;
}


#btn_coke .coke-dot {
  opacity: 0;
}


#btn_coke:hover .coke-red {
  opacity: 0;
  transform: scale(1.05);
}

#btn_coke:hover .coke-dot {
  opacity: 1;
  transform: scale(1.05);
}


@media (max-width: 960px) {
  .button_container {
    width: calc(50% - 10px);
    height: 260px;
  }
}

@media (max-width: 600px) {
  main {
    margin: 24px;
  }

  .button_container {
    float: none;
    width: 100%;
    height: 220px;
  }
}