#main ~ footer {
    font-size: .8rem;
}

.topnav-item:first-child,
.topnav-item + .topnav-item {
    border-top: 1px solid var(--bs-border-color);
}

.topnav-item > .nav-link {
    transition: background-color 0.2s ease;
}

.topnav-item > .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: #fff !important;
}

@media (min-width: 992px) {
    .topnav-item:first-child {
        border-top: none;
    }

    .topnav-item + .topnav-item {
        border-top: none;
        border-left: 1px solid var(--bs-border-color);
    }

    #topNav {
        align-self: stretch;
    }

    #topNav .navbar-nav {
        height: 100%;
    }

    #topNav .topnav-item {
        display: flex;
        align-items: stretch;
    }

    #topNav .topnav-item > .nav-link {
        display: flex;
        align-items: center;
    }
}

/* Image modal */
#img-modal {
    display: flex;
    position: fixed;
    inset: 0;
    z-index: 1080;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#img-modal.img-modal--open {
    opacity: 1;
    visibility: visible;
}

.img-modal-open {
    overflow: hidden;
}

.img-modal__backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.88);
    cursor: pointer;
}

.img-modal__content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.88) translateY(24px);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
}

#img-modal.img-modal--open .img-modal__content {
    opacity: 1;
    transform: scale(1) translateY(0);
}

.img-modal__close {
    position: absolute;
    top: -2.25rem;
    right: 0;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.img-modal__close:hover {
    opacity: 1;
}

.img-modal__img-wrap {
    border-radius: 0.5rem;
    overflow: hidden;
    min-width: 200px;
    min-height: 150px;
    border: 1px solid var(--bs-border-color);
}

.img-modal__img {
    display: block;
    max-width: 90vw;
    max-height: 85vh;
    transition: opacity 0.3s ease;
}

.img-modal__shimmer {
    background: linear-gradient(90deg, #3a3c4e 25%, #44475a 50%, #3a3c4e 75%);
    background-size: 200% 100%;
    animation: img-modal-shimmer 1.5s infinite;
}

.post__body img {
    cursor: zoom-in;
}

/* Copy button for code blocks */
.code-block {
    position: relative;
}

.code-block__copy-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: rgba(68, 71, 90, 0.85);
    border: 1px solid var(--bs-border-color);
    color: #f8f8f2;
    border-radius: 0.375rem;
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s ease, background-color 0.2s ease;
}

.code-block:hover .code-block__copy-btn,
.code-block:focus-within .code-block__copy-btn {
    opacity: 1;
}

.code-block__copy-btn:focus-visible {
    opacity: 1;
    outline: 2px solid var(--bs-primary);
    outline-offset: 2px;
}

.code-block__copy-btn--copied {
    background: rgba(80, 250, 123, 0.2);
    border-color: rgba(80, 250, 123, 0.5);
    color: #50fa7b;
}

@keyframes img-modal-shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}