:root {
    --gray-800: #292524;
    --gray-700: #433f3b;
}

html,
body {
    color: #fff;
    font-weight: 300;
}

main {
    background: #000;
    height: 100vh;
    letter-spacing: 0.025em;
    padding: 4rem 1rem 1rem;
}

.box {
    max-width: 24rem;
    width: 100%;
    background: var(--gray-800);
    padding: 1rem;
    border-radius: 0.125rem;
    margin: 0 auto;
    height: 170px;
}

header {
    align-items: center;
    margin-bottom: 1rem;
    gap: 0.5rem;
}

#pwd {
    font-weight: 200;
    border-radius: 0.125rem;
    background: var(--gray-800);
    border: 1px solid var(--gray-700);
    padding: 0.5rem 1rem;
    width: 100%;
    color: #fff;
}

#pwd:focus {
    outline: 2px solid transparent;
    outline-offset: 2px;
}

.hidden {
    display: none !important;
}

.flex {
    display: flex;
}

#load {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.red {
    color: #dc2626;
}

.spinner {
    pointer-events: none;
    width: 1.5rem;
    height: 1.5rem;
    border: 3px solid transparent;
    border-color: #fff;
    border-right-width: 2px;
    border-radius: 50%;
    -webkit-animation: spin 0.5s linear infinite;
    animation: spin 0.5s linear infinite;
    margin-right: 0.5rem;
}

#load p:last-child {
    font-size: 1.125rem;
    line-height: 1.75rem;
}

[type='submit'] {
    border-radius: 0.125rem;
    color: #000;
    background: #fff;
    width: 100%;
    padding: 0.5rem 0;
    margin-top: 1rem;
    cursor: pointer;
}

@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

#locked {
    width: 1.5rem;
    height: 1.5rem;
}

#msg {
    font-size: 0.875rem;
    line-height: 1.25rem;
}

@media (min-width: 475px) {
    main {
        padding-top: 10rem;
    }

    #msg,
    a {
        font-size: 1rem;
        line-height: 1.5rem;
    }
}