/* ===================================
   eIFU page (GitHub releases style)
   =================================== */
.ah-eifu-page {
    background: var(--bg-light);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* narrower than the main site; footer pushed to the bottom */
.ah-eifu-page #ah-main {
    flex: 1;
    width: 100%;
    max-width: 1680px;
    padding: 0 3rem;
}

.ah-eifu-page .ah-nav {
    max-width: 1680px;
    padding-left: 3rem;
    padding-right: 3rem;
}

/* overflow-x: hidden (site default) breaks position: sticky; clip does not */
.ah-eifu-page,
.ah-eifu-page #ah-main {
    overflow-x: clip;
}

.ah-eifu-header {
    background: white;
    border-bottom: 1px solid var(--border-light);
}

.ah-eifu-back {
    color: var(--text-medium);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
}

.ah-eifu-back:hover {
    color: var(--primary-blue);
}

.ah-eifu-intro {
    padding: 3rem 0 2rem;
}

.ah-eifu-title {
    font-size: 40px;
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.ah-eifu-lead {
    font-size: 17px;
    font-weight: 300;
    color: var(--text-medium);
    line-height: 1.6;
    max-width: 720px;
    margin-bottom: 2rem;
}

.ah-eifu-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.ah-eifu-info > div {
    background: white;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.25rem;
}

.ah-eifu-info h2 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.ah-eifu-info p {
    font-size: 14px;
    font-weight: 300;
    color: var(--text-medium);
    line-height: 1.5;
}

.ah-eifu-info a,
.ah-eifu-message a {
    color: var(--primary-blue);
}

/* Layout: sidebar left, release cards right */
.ah-eifu-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2rem;
    align-items: start;
    padding-bottom: 4rem;
}

.ah-eifu-sidebar {
    position: sticky;
    top: 1.5rem;
}

.ah-eifu-sidebar-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-light);
    margin-bottom: 0.75rem;
}

.ah-eifu-version-list {
    list-style: none;
    border-left: 2px solid var(--border-light);
}

.ah-eifu-version-link {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    column-gap: 0.5rem;
    padding: 0.6rem 1rem;
    margin-left: -2px;
    border-left: 2px solid transparent;
    text-decoration: none;
    color: var(--text-dark);
}

.ah-eifu-version-link:hover {
    background: white;
}

.ah-eifu-version-link.is-active {
    border-left-color: var(--primary-blue);
    background: white;
}

.ah-eifu-version-number {
    font-weight: 500;
    font-size: 15px;
}

.ah-eifu-version-date {
    grid-column: 1 / -1;
    font-size: 13px;
    font-weight: 300;
    color: var(--text-medium);
}

.ah-eifu-select-label,
.ah-eifu-select {
    display: none;
}

/* Release cards */
.ah-eifu-releases {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.ah-eifu-card {
    background: white;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 2rem;
    scroll-margin-top: 1.5rem;
}

.ah-eifu-card-head {
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.ah-eifu-card-titlerow {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.25rem 1rem;
    margin-bottom: 0.4rem;
}

.ah-eifu-card-titlerow .ah-eifu-card-title {
    margin-bottom: 0;
}

.ah-eifu-card-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 26px;
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: 0.4rem;
}

.ah-eifu-card-title a {
    color: inherit;
    text-decoration: none;
}

.ah-eifu-card-title a:hover {
    color: var(--primary-blue);
}

.ah-eifu-badge {
    font-size: 12px;
    font-weight: 500;
    color: var(--primary-green);
    border: 1px solid var(--primary-green);
    border-radius: 20px;
    padding: 0.1rem 0.6rem;
    letter-spacing: 0;
}

.ah-eifu-badge-small {
    font-size: 11px;
    justify-self: start;
}

.ah-eifu-meta,
.ah-eifu-system {
    font-size: 14px;
    font-weight: 300;
    color: var(--text-medium);
}

.ah-eifu-summary {
    font-size: 16px;
    font-weight: 300;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.ah-eifu-section {
    font-size: 16px;
    font-weight: 600;
    margin: 1.25rem 0 0.5rem;
}

.ah-eifu-changes {
    padding-left: 1.25rem;
}

.ah-eifu-changes li {
    font-size: 15px;
    font-weight: 300;
    line-height: 1.6;
    color: var(--text-dark);
}

.ah-eifu-files {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.ah-eifu-file {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-blue);
    text-decoration: none;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 0.5rem 0.9rem;
}

.ah-eifu-file:hover {
    border-color: var(--primary-blue);
}

.ah-eifu-unavailable {
    display: inline-block;
    color: var(--text-light);
    background: var(--bg-light);
    cursor: not-allowed;
}

.ah-eifu-unavailable:hover {
    border-color: var(--border-light);
}

.ah-eifu-message {
    background: white;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.5rem;
    color: var(--text-medium);
}

/* Mobile: sidebar becomes a dropdown above the cards */
@media (max-width: 768px) {
    .ah-eifu-page #ah-main,
    .ah-eifu-page .ah-nav {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .ah-eifu-title {
        font-size: 30px;
    }

    .ah-eifu-info {
        grid-template-columns: 1fr;
    }

    /* block, not grid: sticky needs the whole layout as containing block */
    .ah-eifu-layout {
        display: block;
    }

    .ah-eifu-sidebar {
        top: 0;
        z-index: 10;
        background: var(--bg-light);
        padding: 0.75rem 0;
        margin-bottom: 1rem;
    }

    .ah-eifu-sidebar-title,
    .ah-eifu-version-list {
        display: none;
    }

    .ah-eifu-select-label {
        display: block;
        font-size: 13px;
        font-weight: 600;
        color: var(--text-medium);
        margin-bottom: 0.25rem;
    }

    .ah-eifu-select {
        display: block;
        width: 100%;
        font: inherit;
        font-size: 16px;
        padding: 0.6rem 0.75rem;
        border: 1px solid var(--border-light);
        border-radius: 8px;
        background: white;
        color: var(--text-dark);
    }

    .ah-eifu-card {
        padding: 1.25rem;
        scroll-margin-top: 6rem;
    }

    .ah-eifu-card-title {
        font-size: 22px;
    }
}