body {
    font-family: 'Inter', sans-serif;
    transition: background-color 0.3s ease;
}

.qr-container {
    transition: all 0.3s ease;
}

.custom-shadow {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.dark .custom-shadow {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.smooth-transition {
    transition: all 0.3s ease;
}

.rainbow-text {
    font-family: "Courier New", Courier, monospace;
    text-align: left;
    font-weight: bold;
    font-size: 50px;
    letter-spacing: -13px;
    -webkit-text-stroke-width: 3.5px;
    -webkit-text-fill-color: transparent;
}

.rainbow-text .block-line > span {
    display: inline-block;
}

.rainbow-text-q {
    color: #ff0000;
}

.rainbow-text-r {
    color: #ff1100;
}

.rainbow-text-g {
    color: #ff2200;
}