/* start main-app section */
.main-app {
  width: 100%;
  background-color: var(--first-color);
}
.main-app .container {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  gap: 20px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px;
}
.main-app .container .base64-input,
.main-app .container .base64-output {
  width: 100%;
}
.main-app .container .base64-input textarea,
.main-app .container .base64-output textarea {
  width: 100%;
  height: 150px;
  resize: none;
  padding: 15px;
  font-family: 'Fira Code', 'Courier New', monospace;
  border-radius: 8px;
  border: 2px solid var(--fifth-color);
  outline: none;
  transition: var(--main-transition);
  font-size: 14px;
}
.main-app .container .base64-input textarea:focus {
  border-color: var(--third-color);
  white-space: pre-wrap;
  word-break: break-all;
}
.main-app .container .error-box {
  font-family: 'Fira Code', 'Courier New', monospace;
  display: none;
  padding: 15px;
  width: 100%;
  height: fit-content;
  color: red !important;
  border-radius: var(--main-radius);
  border: 1px solid red;
 }
 
 /* Button layouts */
.main-app .container .btns {
  position: relative;
  width: 100%;
}
.main-app .container .btns div {
  width: fit-content;
  margin: 0 auto;
}
.main-app .container .btns button {
  padding: 10px 20px;
  margin: 10px;
  font-size: 20px;
  font-weight: bold;
  border: 2px solid var(--first-color);
  outline: 2px solid var(--first-color);
  cursor: pointer;
  border-radius: var(--main-radius);
  overflow: hidden;
  transition: var(--main-transition);
}
.main-app .container .btns .encode-btn {
  background-color: var(--third-color);
  color: white;
}
.main-app .container .btns .encode-btn:hover {
  outline-color: var(--third-color);
}
.encode-animation {
  animation: encode-an 0.5s ease;
}
@keyframes encode-an {
  50% {
    background-color: var(--second-color);
    color: var(--third-color);
  }
  100% {
    background-color: var(--third-color);
    color: white;
  }
}
.main-app .container .btns .decode-btn {
  background-color: white;
  color: var(--third-color);
}
.main-app .container .btns .decode-btn:hover {
  outline-color: var(--third-color);
}
.decode-animation {
  animation: decode-an 0.5s ease;
}
@keyframes decode-an {
  50% {
    background-color: var(--second-color);
    color: white;
  }
  100% {
    background-color: white;
    color: var(--third-color);
  }
}
.main-app .container .btns .copy-btn {
  background-color: var(--fourth-color);
  color: var(--second-color);
}
.main-app .container .btns .copy-btn:hover {
  outline-color: var(--fourth-color);
}
.copy-animation {
  animation: copy-an 0.5s ease;
}
@keyframes copy-an {
  50% {
    background-color: var(--second-color);
    color: var(--fourth-color);
  }
  100% {
    background-color: var(--fourth-color);
    color: var(--second-color);
  }
}
.main-app .container .btns .clear-btn {
  background-color: var(--second-color);
  color: var(--fourth-color);
}
.main-app .container .btns .clear-btn:hover {
  outline-color: var(--fourth-color);
}
.clear-animation {
  animation: clear-an 0.5s ease;
}
@keyframes clear-an {
  50% {
    background-color: var(--fourth-color);
    color: var(--second-color);
  }
  100% {
    background-color: var(--second-color);
    color: var(--fourth-color);
  }
}
/* End Button layouts */

/* Responsive design for */
@media (min-width: 768px) {
  
  .main-app .container {
    flex-direction: row;
    padding: 15px 30px;
  }
  .main-app .container .base64-input,
  .main-app .container .base64-output {
    flex: 1;
    max-width: 50%;
  }
  .main-app .container .base64-input textarea,
  .main-app .container .base64-output textarea {
    height: 250px;
  }
  .main-app .container .error-box {
    font-family: 'Fira Code', 'Courier New', monospace;
    display: none;
    padding: 15px;
    color: red !important;
    border-radius: var(--main-radius);
    border: 1px solid red;
  }
  .main-app .container .btns {
  }
  .main-app .container .btns button {
    padding: 10px 20px;
    font-size: 20px;
  }
}
/* End main-app section */