:root {
    --bcg-color: #001122;
    --primary-color: #155e75;
    --border-radius: 8px;
    --secondary-color: #fff;
    --border-color: #7fb7c9;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: sans-serif;
}

body {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--bcg-color);
    animation: fadeIn 1.2s ease-in-out;
    padding: 20px;
}

.box {
    background-color: var(--primary-color);
    padding: 30px;
    width: 400px;
    border-radius: var(--border-radius);
    animation: slideUp 1s ease-in-out;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.qr-header h1 {
    font-size: 26px;
    text-align: center;
    color: var(--secondary-color);
    margin-bottom: 24px;
    text-transform: uppercase;
    animation: fadeIn 1.5s ease-in-out;
}

.qr-header input,
.qr-header select {
    padding: 10px;
    border-radius: var(--border-radius);
    font-size: 18px;
    outline: none;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    width: 100%;
    margin-bottom: 16px;
}

.qr-header input:hover,
.qr-header select:hover {
    border-color: var(--secondary-color);
    background-color: rgba(255, 255, 255, 0.1);
}

.qr-header label {
    color: var(--secondary-color);
    font-size: 18px;
    display: block;
    margin-bottom: 8px;
}

.qr-header div {
    margin-top: 10px;
}

.qr-body {
    display: grid;
    place-items: center;
    padding: 20px;
}

.qr-body img,
.qr-body canvas {
    max-width: 100%;
    max-height: 100%;
    margin-block: 10px;
    padding: 20px;
    border: 0.5px solid var(--border-color);
    border-radius: var(--border-radius);
    animation: fadeIn 1.5s ease;
    background-color: #fff;
}

.qr-footer {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.qr-footer a {
    background-color: var(--secondary-color);
    text-decoration: none;
    font-size: 18px;
    padding: 14px 30px;
    color: var(--primary-color);
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    text-align: center;
}

.qr-footer a:hover {
    background-color: #e0e0e0;
    transform: scale(1.05);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        transform: translateY(40px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive Styles */
@media screen and (max-width: 768px) {
    .box {
        width: 90%;
        padding: 20px;
    }

    .qr-header h1 {
        font-size: 22px;
    }

    .qr-header input,
    .qr-header select {
        font-size: 16px;
        padding: 8px;
    }

    .qr-footer {
        flex-direction: column;
        gap: 12px;
    }

    .qr-footer a {
        width: 100%;
        font-size: 16px;
        padding: 12px;
    }

    .qr-body img,
    .qr-body canvas {
        padding: 10px;
    }
}

@media screen and (max-width: 480px) {
    .qr-header label {
        font-size: 16px;
    }

    .qr-header input,
    .qr-header select {
        width: 100%;
        font-size: 14px;
    }

    .qr-footer a {
        font-size: 15px;
        padding: 10px;
    }
}