.pdf-archive-nav {
    display: grid;
    gap: 12px;
    margin: 0 0 24px;
    padding: 18px 20px;
    background: var(--lib-paper);
    border: 1px solid var(--lib-line);
    border-radius: 12px;
}
.pdf-archive-nav nav { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pdf-archive-filter-label { min-width: 48px; font-weight: 700; font-size: .875rem; }
.pdf-archive-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 6px 13px;
    color: var(--lib-ink);
    border: 1px solid var(--lib-line);
    border-radius: 7px;
    font-size: .875rem;
}
.pdf-archive-nav a[aria-current] { background: var(--lib-accent); border-color: var(--lib-accent); color: #fff; }
.pdf-archive-nav a:hover:not([aria-current]), .pdf-archive-links a:hover { background: var(--lib-bg); }
.pdf-archive-group { margin: 0 0 22px; }
.pdf-archive-group h3 { margin: 0 0 9px; font-size: 1rem; font-weight: 750; }
.pdf-archive-list {
    margin: 0;
    padding: 0;
    list-style: none;
    background: var(--lib-paper);
    border: 1px solid var(--lib-line);
    border-radius: 12px;
}
.pdf-archive-list li { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px 16px; }
.pdf-archive-list li + li { border-top: 1px solid var(--lib-line); }
.pdf-archive-title { color: var(--lib-ink); font-weight: 750; line-height: 1.45; }
.pdf-archive-title:hover { color: var(--lib-accent); text-decoration: underline; }
.pdf-archive-list p { margin: 3px 0 0; color: var(--lib-muted); font-size: .8125rem; }
.pdf-archive-links { display: flex; gap: 7px; flex-wrap: wrap; flex-shrink: 0; }
.pdf-archive-links a { min-height: 40px; padding: 6px 10px; border-radius: 7px; font-size: .8125rem; }
.pdf-detail-downloads { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 20px; }
.pdf-detail-download { display: flex; flex-direction: column; align-items: flex-start; gap: 0; padding: 12px 18px; border-radius: 8px; }
.pdf-detail-download small { font-size: .75rem; opacity: .9; }
.pdf-detail-set-link { margin: -8px 0 20px; font-size: .875rem; }
.pdf-detail-set-link a, .pdf-set-topic a { color: var(--lib-accent); }
.pdf-set-topic { margin: 20px 0 8px; font-size: 1rem; font-weight: 750; }
.pdf-set-page { box-sizing: border-box; min-inline-size: 0; max-inline-size: 100%; }
.pdf-set-page > .lib-breadcrumb { flex-wrap: wrap; white-space: normal; }
.pdf-set-heading {
    display: block;
    min-inline-size: 0;
    max-inline-size: 100%;
    margin: 0 0 18px;
    padding: clamp(16px, 3vw, 30px);
    background: var(--lib-paper);
    border: 1px solid var(--lib-line);
    border-radius: 12px;
}
.pdf-set-heading h1 {
    margin: 0;
    color: var(--lib-ink);
    font-size: clamp(1.45rem, 3.6vw, 2.1rem);
    font-weight: 800;
    letter-spacing: -.025em;
    line-height: 1.2;
}
.pdf-set-heading h1, .pdf-set-heading p {
    max-inline-size: 100%;
    white-space: normal;
    overflow-wrap: anywhere;
}
.pdf-set-intro { margin: 9px 0 0; color: var(--lib-muted); line-height: 1.6; }
.pdf-set-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin-top: 15px; }
.pdf-set-actions .lib-button { max-inline-size: 100%; padding: 8px 15px; border-radius: 8px; }
.pdf-set-status { margin: 12px 0 0; color: var(--lib-muted); font-size: .8125rem; }
@media (max-width: 600px) {
    .pdf-archive-nav { padding: 12px; }
    .pdf-archive-list li { flex-direction: column; align-items: stretch; }
    .pdf-archive-links a { min-height: 44px; }
    .pdf-detail-downloads { display: grid; grid-template-columns: minmax(0, 1fr); }
    .pdf-detail-download { align-items: center; }
    .pdf-set-page > .pdf-archive-nav nav { align-items: stretch; }
    .pdf-set-page .pdf-archive-filter-label { flex-basis: 100%; }
    .pdf-set-page .pdf-archive-nav a { min-height: 44px; }
    .pdf-set-actions .lib-button { inline-size: 100%; }
}