:root {
  --clr-black: #222;
  --clr-white: #eee;
  --clr-primary: #fff7ca;
  --clr-black-dark: #111;
  --clr-primary-light: #fffadf;
  --clr-primary-shadow: #fff3ac20;
  --clr-bg-gradient: linear-gradient(60deg, #111, #141b22);
  --font: "Encode Sans Expanded", sans-serif;
}

::selection {
  background: var(--clr-primary);
  color: var(--clr-black);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font);
}

html {
  font-size: 62.5%;
}

body {
  font-size: 1.6rem;
  background: var(--clr-bg-gradient);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

img {
  display: block;
  max-width: 100%;
}

.container {
  width: 100%;
  max-width: 95rem;
  height: auto;
  min-height: 60rem;
  border-radius: 3rem;
  background: #00000010;
  border: 0.1rem solid var(--clr-primary);
  backdrop-filter: blur(1rem);
  margin-inline: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 1rem;
  column-gap: 1rem;
}

.qr-container {
  display: flex;
  flex-direction: column;
  row-gap: 3rem;
  align-items: center;
  width: 100%;
  flex: 1;
  padding: 1rem;
}

#canvas {
  border-radius: 1rem;
}

.container .qr-title {
  color: var(--clr-primary-light);
  font-weight: 400;
}

.inputs-container {
  display: flex;
  width: 100%;
  flex: 1;
  flex-direction: column;
  min-height: 30rem;
  align-items: center;
  justify-content: space-evenly;
  padding: 1rem;
}

.inputs-container label {
  font-size: 2rem;
  display: flex;
  flex-direction: column;
  row-gap: 2rem;
  width: 100%;
  color: var(--clr-primary-light);
}

.inputs-container input {
  font-size: 1.7rem;
  padding-inline: 1rem;
  width: 100%;
  height: 5rem;
  border-radius: 1rem;
  border: 0.1rem solid var(--clr-primary);
  color: var(--clr-primary-light);
  background: var(--clr-black);
}

.inputs-container input:focus {
  outline: none;
  box-shadow: 0 0 1rem 0.5rem var(--clr-primary-shadow);
}

.buttons-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2rem 3rem;
  width: 100%;
  margin-top: 1rem;
}

.buttons-container .btn {
  font-size: 2rem;
  padding: 0.5rem;
  width: 100%;
  max-width: 20rem;
  height: 5rem;
  border: none;
  border-radius: 1rem;
  color: var(--clr-black);
  background: var(--clr-primary);
  cursor: pointer;
  transition: all 0.3s;
}

.inputs-container .btn.clear-btn {
  font-size: 2rem;
  padding: 0.5rem;
  width: 100%;
  max-width: 20rem;
  height: 5rem;
  border: 0.1rem solid var(--clr-primary-light);
  border-radius: 1rem;
  color: var(--clr-primary-light);
  background: var(--clr-black);
  cursor: pointer;
  transition: all 0.3s;
}

.inputs-container .btn:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 3rem 1rem var(--clr-primary-shadow);
  scale: 0.95;
}

.inputs-container .btn.btn.clear-btn:hover {
  background: var(--clr-black-dark);
  box-shadow: 0 0 0 0 #000;
  scale: 0.95;
}

.btn a {
  display: block;
  text-decoration: none;
  color: var(--clr-black);
  padding-block: 0.6rem;
}

.btn.download-btn {
  display: none;
  width: 100%;
  max-width: 100%;
}

.spinner {
  position: absolute;
  z-index: 99;
  top: 50%;
  width: 6rem;
  height: 6rem;
  background: transparent;
  border-bottom: 1rem solid transparent;
  border-right: 1rem solid var(--clr-white);
  border-radius: 50%;
  animation: rotate 1s linear infinite;
  display: none;
}

@keyframes rotate {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 970px) {
  .buttons-container {
    margin-top: 3rem;
    margin-bottom: -4.5rem;
  }

  .buttons-container .btn,
  .buttons-container .btn.btn.clear-btn {
    max-width: 100%;
  }
}

@media (max-width: 600px) {
  #canvas {
    display: block;
    border: 0.1rem solid var(--clr-white);
    width: 100%;
    padding: 1.2rem;
  }

  .qr-container {
    margin-inline: 1rem;
    overflow-x: scroll;
  }

  .container {
    flex-direction: column;
    min-height: 80rem;
    margin-block: 5rem;
    justify-content: center;
  }

  .inputs-container {
    min-height: 40rem;
    justify-content: flex-start;
    margin-top: 1rem;
  }

  .buttons-container {
    height: auto;
    margin-top: 5rem;
    flex-direction: column;
    gap: 2rem;
  }
}