@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
        
        * {
            font-family: 'Inter', sans-serif;
        }

        /* Animated Background */
        .animated-bg {
            background: linear-gradient(-45deg, #1e3a8a, #1e40af, #3b82f6, #60a5fa);
            background-size: 400% 400%;
            animation: gradientShift 15s ease infinite;
        }

        @keyframes gradientShift {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        /* 3D Floating Elements */
        .floating-element {
            position: absolute;
            animation: float 6s ease-in-out infinite;
            opacity: 0.1;
        }

        .floating-element:nth-child(1) { animation-delay: 0s; }
        .floating-element:nth-child(2) { animation-delay: 2s; }
        .floating-element:nth-child(3) { animation-delay: 4s; }

        @keyframes float {
            0%, 100% { transform: translateY(0px) rotateX(0deg) rotateY(0deg); }
            50% { transform: translateY(-20px) rotateX(10deg) rotateY(10deg); }
        }

        /* 3D Barcode Container */
        .barcode-container {
            perspective: 1000px;
            transform-style: preserve-3d;
        }

        .barcode-3d {
            transform: rotateX(5deg) rotateY(-5deg);
            transition: transform 0.3s ease;
            box-shadow: 
                0 25px 50px -12px rgba(0, 0, 0, 0.25),
                0 0 0 1px rgba(255, 255, 255, 0.1);
        }

        .barcode-3d:hover {
            transform: rotateX(0deg) rotateY(0deg) scale(1.05);
        }

        /* Barcode Lines */
        .barcode-line {
            background: linear-gradient(180deg, #000 0%, #333 50%, #000 100%);
            animation: barcodeGlow 2s ease-in-out infinite alternate;
        }

        @keyframes barcodeGlow {
            0% { opacity: 0.8; }
            100% { opacity: 1; box-shadow: 0 0 10px rgba(0, 0, 0, 0.5); }
        }

        /* Crypto Icon Styles */
        .crypto-icon {
            transition: all 0.5s ease;
            transform: scale(0);
            opacity: 0;
        }

        .crypto-icon.active {
            transform: scale(1);
            opacity: 1;
        }

        /* Glowing Effect */
        .glow {
            box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
        }

        /* Responsive 3D Cards */
        .info-card {
            backdrop-filter: blur(10px);
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            transform: translateZ(0);
            transition: transform 0.3s ease;
        }

        .info-card:hover {
            transform: translateY(-10px) rotateX(5deg);
        }



   .container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    }

    .qr-code-container {
    background: rgba(255,255,255,0.15);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    backdrop-filter: blur(8px);
    border-radius: 24px;
    padding: 32px 24px 24px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 32px;
    }




.eth-icon-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.85);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(44,83,100,0.12);
  animation: eth-pulse 2.5s infinite cubic-bezier(.4,0,.2,1);
}

#qr-code {
  position: relative;
  margin-bottom: 0;
}


@keyframes eth-pulse {
  0%, 100% { box-shadow: 0 2px 8px rgba(44,83,100,0.12), 0 0 0 0 rgba(44,83,100,0.08); }
  50% { box-shadow: 0 2px 16px rgba(44,83,100,0.18), 0 0 0 12px rgba(44,83,100,0.04); }
}

.eth-icon {
  display: none;
}



.back-button {
  display: inline-block;
  padding: 10px 32px;
  background: linear-gradient(90deg, #e3eafc 0%, #b6c6e6 100%);
  color: #185a9d;
  font-size: 1.1rem;
  font-weight: 600;
  border: none;
  border-radius: 24px;
  box-shadow: 0 2px 8px rgba(44,83,100,0.10);
  text-decoration: none;
  transition: background 0.3s, color 0.3s, box-shadow 0.3s, transform 0.2s;
  cursor: pointer;
  margin-top: 24px;
}
.back-button:hover {
  background: linear-gradient(90deg, #b6c6e6 0%, #e3eafc 100%);
  color: #0f2027;
  box-shadow: 0 4px 16px rgba(44,83,100,0.16);
  transform: translateY(-2px) scale(1.04);
}

.switch {
  position: relative;
  display: inline-block;
  width: 52px;
  height: 28px;
  margin-right: 12px;
}
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background: #e2e8f0;
  border-radius: 34px;
  transition: background 0.3s;
  box-shadow: 0 2px 8px rgba(44,83,100,0.08);
}
.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 3px;
  bottom: 3px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(44,83,100,0.10);
  transition: transform 0.3s, background 0.3s;
}
input:checked + .slider {
  background: linear-gradient(90deg, #b6c6e6 0%, #e3eafc 100%);
}
input:checked + .slider:before {
  transform: translateX(24px);
  background: #185a9d;
}
.slider.round {
  border-radius: 34px;
}

.download-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 40px;
  background: linear-gradient(270deg, #b6c6e6, #e3eafc, #b6c6e6);
  background-size: 400% 400%;
  color: #185a9d;
  font-size: 1.18rem;
  font-weight: 800;
  border: none;
  border-radius: 32px;
  box-shadow: 0 2px 16px rgba(44,83,100,0.13);
  text-decoration: none;
  transition: color 0.3s, box-shadow 0.3s, transform 0.2s;
  cursor: pointer;
  margin: 22px 0 0 0;
  letter-spacing: 0.7px;
  position: relative;
  animation: gradientMove 3s ease-in-out infinite;
  overflow: hidden;
  margin-bottom: 50px;
}
.download-button::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 22px;
  background: url('data:image/svg+xml;utf8,<svg fill="%23185a9d" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 16l4-5h-3V4h-2v7H8l4 5zm-8 2v2h16v-2H4z"/></svg>') no-repeat center/contain;
  margin-left: 2px;
}
.download-button:hover {
  color: #04167c;
  box-shadow: 0 6px 32px 0 rgba(44,83,100,0.22), 0 0 16px 2px #b6c6e6;
  transform: translateY(-3px) scale(1.06);
}
.download-button:hover::before {
  filter: brightness(1.3) drop-shadow(0 0 6px #8eade9);
}
@keyframes gradientMove {
  0% {background-position: 0% 50%;}
  50% {background-position: 100% 50%;}
  100% {background-position: 0% 50%;}
} 

.download-button-bc{

    background: rgba(255,255,255,0.15);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    backdrop-filter: blur(8px);
    border-radius: 24px;
    padding: 32px 24px 24px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 50px;
  
  }

  .download-button-bc img {

  width: 100px;
  height: 100px;
  margin-right: 80px;
  margin-bottom: 30px;
  display: flex;
  
  }

  .download-button-bc img:hover{
    color: #04167c;
    box-shadow: 0 6px 32px 0 rgba(44,83,100,0.22), 0 0 16px 2px #b6c6e6;
    transform: translateY(-3px) scale(1.06);
  }








  #password-container {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      height: 100vh;
      text-align: center;
    }
    #settings-content {
      display: none;
    }
    input[type="password"] {
      padding: 8px;
      margin-top: 10px;
      font-size: 16px;
    }
    button {
      margin-top: 10px;
      padding: 8px 16px;
      font-size: 16px;
    }