.pf-doclib {
    --pf-red: #e30613;
    --pf-dark: #111722;
    --pf-muted: #6b7280;
    --pf-line: #e5e7eb;
    --pf-soft: #f7f8fa;
    width: 100%;
    color: var(--pf-dark);
}
.pf-doclib *, .pf-doclib *::before, .pf-doclib *::after { box-sizing: border-box; }
.pf-doclib__toolbar { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 24px; }
.pf-doclib__heading { margin: 0; font-size: clamp(26px, 3vw, 38px); line-height: 1.1; letter-spacing: -.025em; }
.pf-doclib__accent { display: block; width: 40px; height: 3px; background: var(--pf-red); margin-top: 12px; border-radius: 99px; }
.pf-doclib__search { position: relative; width: min(420px, 100%); }

.pf-doclib__search input {
    width: 100%;
    height: 48px;
    border: 1px solid var(--pf-line);
    border-radius: 9px;
    background: #fff;
    padding: 0 48px 0 16px;
    font: inherit;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
    -webkit-appearance: none;
    appearance: none;
}

.pf-doclib__search input:focus { border-color: var(--pf-red); box-shadow: 0 0 0 3px rgba(227,6,19,.08); }
.pf-doclib__search-icon { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); font-size: 26px; color: var(--pf-red); pointer-events: none; }
.pf-doclib__filters { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 22px; }
.pf-doclib__filter { appearance: none; border: 1px solid var(--pf-line); background: #fff; color: #343a46; border-radius: 999px; padding: 9px 13px; font: inherit; font-size: 14px; cursor: pointer; transition: .2s ease; }
.pf-doclib__filter span { opacity: .58; margin-left: 3px; }
.pf-doclib__filter:hover { border-color: #c8cbd0; transform: translateY(-1px); }
.pf-doclib__filter.is-active { border-color: var(--pf-red); background: var(--pf-red); color: #fff; }
.pf-doclib__sort-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 18px; }
.pf-doclib__result-count { color: var(--pf-muted); font-size: 14px; }
.pf-doclib__sort-label { display: flex; align-items: center; gap: 9px; color: var(--pf-muted); font-size: 14px; }
.pf-doclib__sort-label select { height: 40px; border: 1px solid var(--pf-line); background: #fff; border-radius: 8px; padding: 0 32px 0 12px; color: var(--pf-dark); }
.pf-doclib__grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; }
.pf-doc-card { position: relative; min-width: 0; display: flex; flex-direction: column; background: #fff; border: 1px solid #e7e9ed; border-radius: 10px; padding: 20px; box-shadow: 0 7px 24px rgba(17,23,34,.055); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.pf-doc-card:hover { transform: translateY(-3px); border-color: #d9dce2; box-shadow: 0 12px 30px rgba(17,23,34,.09); }
.pf-doc-card[hidden] { display: none !important; }
.pf-doc-card--featured { border-top: 3px solid var(--pf-red); padding-top: 18px; }
.pf-doc-card__featured { position: absolute; top: 12px; right: 12px; padding: 4px 7px; border-radius: 999px; background: rgba(227,6,19,.08); color: var(--pf-red); font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.pf-doc-card__top { display: flex; align-items: flex-start; gap: 14px; }
.pf-doc-card__icon { flex: 0 0 44px; width: 44px; height: 56px; position: relative; }
.pf-doc-card__icon-shape { width: 100%; height: 100%; display: block; filter: drop-shadow(0 4px 8px rgba(17,23,34,.07)); }
.pf-doc-card__icon span { position: absolute; left: 6px; bottom: 6px; z-index: 1; background: var(--pf-red); color: #fff; border-radius: 3px; padding: 3px 5px; font-size: 9px; font-weight: 800; letter-spacing: .02em; line-height: 1; box-shadow: 0 2px 5px rgba(227,6,19,.25); }
.pf-doc-card__body { min-width: 0; }
.pf-doc-card__category { color: #858b96; font-size: 11px; margin-bottom: 6px; }
.pf-doc-card__title { margin: 0 0 8px; font-size: 16px; line-height: 1.35; letter-spacing: -.01em; overflow-wrap: anywhere; }
.pf-doc-card__description { margin: 0 0 9px; color: #626975; font-size: 12.5px; line-height: 1.45; }
.pf-doc-card__meta { display: flex; flex-wrap: wrap; gap: 3px 8px; color: #7c838d; font-size: 11px; line-height: 1.45; }
.pf-doc-card__actions { margin-top: auto; padding-top: 20px; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.pf-doc-card__actions a { text-decoration: none; font-size: 13px; font-weight: 650; }
.pf-doc-card__view { color: #5b626d; }
.pf-doc-card__download { color: var(--pf-red); }
.pf-doc-card__actions a:hover { text-decoration: underline; }
.pf-doc-card__versions { margin-top: 15px; padding-top: 13px; border-top: 1px solid #eef0f2; }
.pf-doc-card__versions summary { cursor: pointer; color: #555d69; font-size: 12px; font-weight: 650; }
.pf-doc-card__versions summary span { display: inline-grid; place-items: center; min-width: 19px; height: 19px; margin-left: 4px; border-radius: 999px; background: #f0f1f3; font-size: 10px; }
.pf-doc-card__versions-list { display: grid; gap: 7px; margin-top: 10px; }
.pf-doc-card__versions-list a { display: flex; flex-direction: column; gap: 2px; padding: 8px 9px; border-radius: 6px; background: var(--pf-soft); color: #303641; text-decoration: none; font-size: 11.5px; }
.pf-doc-card__versions-list a:hover { background: #eff1f4; }
.pf-doc-card__versions-list small { color: #7a818d; }
.pf-doclib__empty { margin-top: 18px; padding: 38px 24px; border: 1px dashed #d8dbe0; border-radius: 10px; text-align: center; background: #fafafa; }
.pf-doclib__empty strong, .pf-doclib__empty span { display: block; }
.pf-doclib__empty span { margin-top: 6px; color: var(--pf-muted); }
@media (max-width: 1100px) { .pf-doclib__grid { grid-template-columns: repeat(3,minmax(0,1fr)); } }
@media (max-width: 820px) { .pf-doclib__grid { grid-template-columns: repeat(2,minmax(0,1fr)); } .pf-doclib__toolbar { align-items: stretch; flex-direction: column; } .pf-doclib__search { width: 100%; } }
@media (max-width: 560px) { .pf-doclib__grid { grid-template-columns: 1fr; } .pf-doclib__sort-row { align-items: stretch; flex-direction: column; } .pf-doclib__sort-label { justify-content: space-between; } .pf-doclib__sort-label select { flex: 1; } }