.document-page-modern { padding-top: 30px; }

.document-page-modern .back-link {
    align-items: center;
    gap: 7px;
    margin-bottom: 16px;
    font-size: 13px;
}

.document-page-modern .document-layout {
    grid-template-columns: minmax(0, 1fr) 310px;
    gap: 22px;
}

.document-page-modern .document-main-card {
    padding: clamp(24px, 3.2vw, 38px);
    border-radius: 20px;
}

.document-identity {
    padding-bottom: 26px;
    border-bottom: 1px solid var(--line);
}

.document-record-label {
    margin-bottom: 11px;
    color: #7770dd;
    font-size: 10.5px;
    font-weight: 900;
    letter-spacing: .14em;
}

.document-page-modern .document-title {
    max-width: 850px;
    margin: 16px 0 9px;
    font-size: clamp(22px, 2.35vw, 31px);
    line-height: 1.3;
    letter-spacing: -.018em;
}

.document-page-modern .document-byline {
    margin: 0;
    color: #59657b;
    font-size: 15px;
    font-weight: 700;
}

.publication-strip {
    display: grid;
    grid-template-columns: .65fr 1.7fr 1fr;
    gap: 0;
    margin-top: 24px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fafbfe;
    overflow: hidden;
}

.publication-strip > div {
    min-width: 0;
    padding: 13px 15px;
    border-right: 1px solid var(--line);
}

.publication-strip > div:last-child { border-right: 0; }
.publication-strip span { display: block; color: var(--muted); font-size: 10.5px; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; }
.publication-strip strong { display: block; margin-top: 3px; overflow: hidden; color: #27334a; font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }

.document-page-modern .citation-box {
    margin-top: 26px;
    padding: 20px;
    border-radius: 15px;
}

.citation-box-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
}

.citation-box-head strong { display: block; margin-top: 2px; color: #343d52; font-size: 13px; }
.citation-box-head .citation-style-picker { width: min(220px, 42%); }
.document-page-modern .citation-box .citation { margin: 0 0 17px; padding-top: 15px; border-top: 1px solid #e2e2f7; font-size: 16px; }

.document-page-modern .document-section { margin-top: 30px; padding-top: 25px; }
.section-title-row { display: flex; align-items: center; gap: 10px; margin-bottom: 13px; }
.section-title-row > span { display: grid; place-items: center; width: 27px; height: 27px; border-radius: 8px; background: #efefff; color: #625be2; font-size: 10px; font-weight: 900; }
.document-page-modern .section-title-row h2 { margin: 0; font-size: 19px; }
.abstract-section > p { margin: 0; color: #3f4c62; line-height: 1.8; text-align: justify; }

.document-page-modern .metadata-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 26px;
}

.document-page-modern .metadata-grid > div { min-width: 0; }
.document-page-modern .metadata-grid dd { color: #303b50; }
.keyword-section > p { margin: 0; color: #4c5870; }

.document-page-modern .document-side { top: 92px; gap: 14px; }
.document-page-modern .side-card { padding: 20px; border-radius: 18px; box-shadow: 0 12px 34px rgba(31, 42, 68, .06); }
.side-intro { margin: 9px 0 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.document-page-modern .side-actions { margin-top: 14px; }
.document-page-modern .request-card details { margin-top: 12px; }
.document-page-modern .request-card summary { color: var(--primary); font-weight: 800; cursor: pointer; }
.document-page-modern .request-card form { display: grid; gap: 12px; margin-top: 15px; }

@media (max-width: 900px) {
    .document-page-modern .document-layout { grid-template-columns: 1fr; }
    .document-page-modern .document-side { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .document-page-modern .request-card { grid-column: 1 / -1; }
}

@media (max-width: 650px) {
    .document-page-modern { padding-top: 20px; }
    .document-page-modern .document-main-card { padding: 20px; border-radius: 17px; }
    .document-page-modern .document-title { font-size: 22px; line-height: 1.35; }
    .publication-strip { grid-template-columns: 1fr; }
    .publication-strip > div { border-right: 0; border-bottom: 1px solid var(--line); }
    .publication-strip > div:last-child { border-bottom: 0; }
    .publication-strip strong { white-space: normal; }
    .citation-box-head { align-items: flex-start; flex-direction: column; }
    .citation-box-head .citation-style-picker { width: 100%; }
    .document-page-modern .metadata-grid,
    .document-page-modern .document-side { grid-template-columns: 1fr; }
    .document-page-modern .request-card { grid-column: auto; }
    .abstract-section > p { text-align: left; }
}