:root, .light, .light-theme {
    --blue-1: #fdfdfe;
    --blue-2: #f7f9ff;
    --blue-3: #edf2fe;
    --blue-4: #dfeaff;
    --blue-5: #d0dfff;
    --blue-6: #bdd1ff;
    --blue-7: #a6bff9;
    --blue-8: #87a5ef;
    --blue-9: #3d63dd;
    --blue-10: #3657c3;
    --blue-11: #395bc7;
    --blue-12: #1d2e5c;
  
    --blue-a1: #00008002;
    --blue-a2: #0040ff08;
    --blue-a3: #0047f112;
    --blue-a4: #0058ff20;
    --blue-a5: #0052ff2f;
    --blue-a6: #004eff42;
    --blue-a7: #0048ee59;
    --blue-a8: #0040dd78;
    --blue-a9: #0032d2c2;
    --blue-a10: #002ab3c9;
    --blue-a11: #002cb7c6;
    --blue-a12: #001347e2;
  
    --blue-contrast: #fff;
    --blue-surface: #f5f8ffcc;
    --blue-indicator: #3d63dd;
    --blue-track: #3d63dd;

    --gray-1: #fcfcfd;
    --gray-2: #f9f9fb;
    --gray-3: #eff0f3;
    --gray-4: #e7e8ec;
    --gray-5: #e0e1e6;
    --gray-6: #d8d9e0;
    --gray-7: #cdced7;
    --gray-8: #b9bbc6;
    --gray-9: #8b8d98;
    --gray-10: #80828d;
    --gray-11: #62636c;
    --gray-12: #1e1f24;
  
    --gray-a1: #00005503;
    --gray-a2: #00005506;
    --gray-a3: #00104010;
    --gray-a4: #000b3618;
    --gray-a5: #0009321f;
    --gray-a6: #00073527;
    --gray-a7: #00063332;
    --gray-a8: #00083046;
    --gray-a9: #00051d74;
    --gray-a10: #00051b7f;
    --gray-a11: #0002119d;
    --gray-a12: #000107e1;
  
    --gray-contrast: #FFFFFF;
    --gray-surface: #ffffffcc;
    --gray-indicator: #8b8d98;
    --gray-track: #8b8d98;
}


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

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;

    background: linear-gradient(235deg, #3657c3, #395bc7, #3d63dd, #1d2e5c, #3a486e);
    background-size: 1000% 1000%;
    animation: BackgroundColor 38s ease infinite;
}

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

#letter_img {
    max-width: 70vw;
    max-height: 50vh;
}

#letter_contents {
    display: none;
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    align-items: center;
    justify-content: center;
}

#letter_text {
    border-radius: 0.5rem;
    padding: 1rem;
    background-color: var(--blue-1);
    color: var(--blue-12);
    font-size: 1.5rem;
    font-weight: 500;
    text-align: left;
    box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.1);
    margin: 0 auto;
    max-width: 50ch;
    max-height: 80vh;
    overflow-y: auto;
}