* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.container {
  background: white;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  padding: 40px;
  max-width: 600px;
  width: 100%;
  text-align: center;
}

h1 {
  color: #333;
  margin-bottom: 30px;
  font-size: 2.5em;
  font-weight: 300;
}

.input-group {
  margin-bottom: 25px;
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  align-items: center;
  justify-content: center;
}

#text {
  flex: 1;
  min-width: 250px;
  padding: 15px 20px;
  border: 2px solid #e1e8ed;
  border-radius: 25px;
  font-size: 16px;
  outline: none;
  transition: border-color 0.3s ease;
}

#text:focus {
  border-color: #4a5568;
}

#color {
  width: 60px;
  height: 50px;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  outline: none;
}

#download {
  background: linear-gradient(45deg, #4a5568, #2d3748);
  color: white;
  border: none;
  padding: 15px 25px;
  border-radius: 25px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}

#download:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.glitter-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
  border-radius: 25px;
}

.glitter {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
}

@keyframes glitter1 {
  0% {
    opacity: 0;
    transform: translateY(0) translateX(0) scale(0);
  }

  50% {
    opacity: 1;
    transform: translateY(-20px) translateX(10px) scale(1);
  }

  100% {
    opacity: 0;
    transform: translateY(-40px) translateX(20px) scale(0);
  }
}

@keyframes glitter2 {
  0% {
    opacity: 0;
    transform: translateY(0) translateX(0) scale(0) rotate(0deg);
  }

  50% {
    opacity: 1;
    transform: translateY(-15px) translateX(-15px) scale(1.2) rotate(180deg);
  }

  100% {
    opacity: 0;
    transform: translateY(-30px) translateX(-30px) scale(0) rotate(360deg);
  }
}

@keyframes glitter3 {
  0% {
    opacity: 0;
    transform: translateY(0) translateX(0) scale(0);
  }

  30% {
    opacity: 1;
    transform: translateY(-10px) translateX(5px) scale(0.8);
  }

  70% {
    opacity: 1;
    transform: translateY(-25px) translateX(-5px) scale(1.1);
  }

  100% {
    opacity: 0;
    transform: translateY(-35px) translateX(-10px) scale(0);
  }
}

.glitter.anim1 {
  animation: glitter1 1.5s ease-out infinite;
}

.glitter.anim2 {
  animation: glitter2 1.8s ease-out infinite;
}

.glitter.anim3 {
  animation: glitter3 1.2s ease-out infinite;
}

.qr-container {
  margin: 30px 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #f8f9fa;
  border-radius: 15px;
  padding: 20px;
  overflow: visible;
  position: relative;
}

#qrcode {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

#qrcode svg {
  max-width: 100%;
  max-height: none;
  width: auto;
  height: auto;
  border-radius: 10px;
  background: white;
  padding: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  display: block;
}

.qr-glitter-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
  z-index: 10;
}

.qr-glitter {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
}

@keyframes qrGlitter1 {
  0% {
    opacity: 0;
    transform: translateY(0) translateX(0) scale(0);
  }

  50% {
    opacity: 1;
    transform: translateY(-30px) translateX(15px) scale(1);
  }

  100% {
    opacity: 0;
    transform: translateY(-60px) translateX(30px) scale(0);
  }
}

@keyframes qrGlitter2 {
  0% {
    opacity: 0;
    transform: translateY(0) translateX(0) scale(0) rotate(0deg);
  }

  50% {
    opacity: 1;
    transform: translateY(-25px) translateX(-20px) scale(1.3) rotate(180deg);
  }

  100% {
    opacity: 0;
    transform: translateY(-50px) translateX(-40px) scale(0) rotate(360deg);
  }
}

@keyframes qrGlitter3 {
  0% {
    opacity: 0;
    transform: translateY(0) translateX(0) scale(0);
  }

  30% {
    opacity: 1;
    transform: translateY(-15px) translateX(8px) scale(0.9);
  }

  70% {
    opacity: 1;
    transform: translateY(-35px) translateX(-8px) scale(1.2);
  }

  100% {
    opacity: 0;
    transform: translateY(-55px) translateX(-15px) scale(0);
  }
}

.qr-glitter.anim1 {
  animation: qrGlitter1 2s ease-out;
}

.qr-glitter.anim2 {
  animation: qrGlitter2 2.2s ease-out;
}

.qr-glitter.anim3 {
  animation: qrGlitter3 1.8s ease-out;
}

.footer {
  margin-top: 20px;
  color: #666;
  font-size: 14px;
}

.footer-credits {
  margin-top: 10px;
  font-size: 12px;
  color: #999;
}

.footer-credits a {
  color: #667;
  text-decoration: none;
}

.source-link {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

@media (max-width: 480px) {
  .container {
    padding: 25px;
    margin: 10px;
  }

  h1 {
    font-size: 2em;
    margin-bottom: 20px;
  }

  .input-group {
    flex-direction: column;
  }

  #text {
    min-width: 100%;
  }
}