/* =========================================================
   ACADEMIC DOCUMENT PAGE VARIABLES
========================================================= */
:root {
    --color1: #1F3B5D;
    --color2: #FBD405;

    --doc-white: #ffffff;
    --doc-blue-dark: #06124D;
    --doc-blue-bright: #0862F4;
    --doc-muted: #526488;
}

/* =========================================================
   ACADEMIC DOCUMENT HERO SECTION
========================================================= */
.academic-doc-hero {
    position: relative;
    width: 100%;
    overflow: hidden;
    background: linear-gradient(135deg, #ffffff 0%, #eef5ff 45%, #cfe0ff 100%);
}

.academic-doc-hero-inner {
    position: relative;
    min-height: 720px;
    overflow: hidden;
    padding: 92px 0 0;
}

.academic-doc-hero-inner::before {
    content: "";
    position: absolute;
    right: -80px;
    bottom: -70px;
    width: 680px;
    height: 560px;
    border-radius: 46% 0 0 0;
    background: linear-gradient(135deg, rgba(8, 98, 244, 0.05), rgba(8, 98, 244, 0.14));
    pointer-events: none;
}

.academic-doc-hero-inner::after {
    content: "";
    position: absolute;
    right: 120px;
    top: 84px;
    width: 210px;
    height: 260px;
    opacity: 0.20;
    background:
        linear-gradient(90deg, transparent 0 56%, rgba(255, 255, 255, 0.65) 56% 100%),
        linear-gradient(0deg, transparent 0 56%, rgba(255, 255, 255, 0.65) 56% 100%);
    pointer-events: none;
}

.academic-doc-hero-row {
    position: relative;
    z-index: 2;
    min-height: 628px;
}

.academic-doc-hero-content {
    position: relative;
    z-index: 6;
    height: 100%;
    max-width: 820px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 40px 72px 92px;
}

.academic-doc-hero-badge {
    width: fit-content;
    min-height: 56px;
    display: inline-flex;
    align-items: center;
    gap: 14px;
    padding: 10px 28px;
    margin-bottom: 46px;
    border-radius: 999px;
    background: rgba(8, 98, 244, 0.10);
    color: var(--doc-blue-bright);
    font-size: 16px;
    font-weight: 900;
    line-height: 1;
    text-transform: uppercase;
    animation: academicDocBadgeFloat 3.8s ease-in-out infinite;
}

.academic-doc-hero-badge i {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(8, 98, 244, 0.10);
    color: var(--doc-blue-bright);
    font-size: 16px;
}

.academic-doc-hero h1 {
    max-width: 760px;
    margin: 0;
    color: var(--doc-blue-dark);
    font-size: 48px;
    font-weight: 900;
    line-height: 1.18;
    letter-spacing: -2px;
}

.academic-doc-hero-line {
    width: 98px;
    height: 6px;
    margin: 36px 0 34px;
    border-radius: 999px;
    background: var(--color2);
}

.academic-doc-hero p {
    max-width: 720px;
    margin: 0;
    color: var(--doc-muted);
    font-size: 18px;
    font-weight: 500;
    line-height: 1.58;
}

.academic-doc-hero-visual {
    position: relative;
    z-index: 4;
    height: 100%;
    min-height: 628px;
}

.academic-doc-hero-img {
    position: absolute;
    right: 0;
    bottom: 0;
    max-height: 100%;
    max-width: 890px;
    width: auto;
    object-fit: contain;
    transform-origin: bottom right;
    filter: drop-shadow(0 30px 44px rgba(31, 59, 93, 0.16));
    transition: transform 0.45s ease;
}

.academic-doc-hero-visual:hover .academic-doc-hero-img {
    transform: translateY(-7px) scale(1.018);
}

/* =========================================================
   ACADEMIC DOCUMENT HERO ANIMATION
========================================================= */
.academic-doc-hero .fade-up {
    opacity: 0;
    animation: academicDocFadeUp 0.85s ease forwards;
}

.academic-doc-hero .delay-1 {
    animation-delay: 0.18s;
}

@keyframes academicDocFadeUp {
    from {
        opacity: 0;
        transform: translateY(34px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes academicDocBadgeFloat {
    0%, 100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

/* =========================================================
   ACADEMIC DOCUMENT HERO RESPONSIVE
========================================================= */
@media (max-width: 1399.98px) {
    .academic-doc-hero-inner {
        min-height: 680px;
        padding-top: 82px;
    }

    .academic-doc-hero-row {
        min-height: 598px;
    }

    .academic-doc-hero-content {
        padding-left: 72px;
        padding-bottom: 64px;
    }

    .academic-doc-hero h1 {
        font-size: 48px;
    }

    .academic-doc-hero p {
        font-size: 18px;
    }

    .academic-doc-hero-img {
        max-width: 790px;
    }
}

@media (max-width: 1199.98px) {
    .academic-doc-hero-inner {
        min-height: 630px;
        padding-top: 74px;
    }

    .academic-doc-hero-row {
        min-height: 556px;
    }

    .academic-doc-hero-content {
        padding-left: 52px;
        padding-bottom: 54px;
    }

    .academic-doc-hero-badge {
        min-height: 48px;
        margin-bottom: 34px;
        font-size: 17px;
    }

    .academic-doc-hero-badge i {
        width: 32px;
        height: 32px;
        font-size: 18px;
    }

    .academic-doc-hero h1 {
        font-size: 48px;
    }

    .academic-doc-hero p {
        font-size: 18px;
    }

    .academic-doc-hero-img {
        max-width: 660px;
    }
}

@media (max-width: 991.98px) {
    .academic-doc-hero-inner {
        min-height: auto;
        padding: 64px 0 0;
    }

    .academic-doc-hero-row {
        min-height: auto;
    }

    .academic-doc-hero-content {
        max-width: 760px;
        height: auto;
        margin: 0 auto;
        padding: 0 24px 34px;
        text-align: center;
        align-items: center;
    }

    .academic-doc-hero-badge,
    .academic-doc-hero-line {
        margin-left: auto;
        margin-right: auto;
    }

    .academic-doc-hero h1 {
        font-size: 46px;
    }

    .academic-doc-hero p {
        max-width: 650px;
        font-size: 17px;
    }

    .academic-doc-hero-visual {
        min-height: 480px;
        height: 480px;
    }

    .academic-doc-hero-img {
        left: 50%;
        right: auto;
        bottom: 0;
        max-height: 100%;
        max-width: 600px;
        transform: translateX(-50%);
        transform-origin: bottom center;
    }

    .academic-doc-hero-visual:hover .academic-doc-hero-img {
        transform: translateX(-50%) translateY(-6px) scale(1.018);
    }
}

@media (max-width: 767.98px) {
    .academic-doc-hero-inner {
        padding-top: 48px;
    }

    .academic-doc-hero-badge {
        min-height: 42px;
        gap: 10px;
        padding: 8px 18px;
        margin-bottom: 26px;
        font-size: 14px;
    }

    .academic-doc-hero-badge i {
        width: 28px;
        height: 28px;
        font-size: 15px;
    }

    .academic-doc-hero h1 {
        font-size: 36px;
        line-height: 1.2;
        letter-spacing: -0.8px;
    }

    .academic-doc-hero-line {
        width: 78px;
        height: 5px;
        margin: 24px auto;
    }

    .academic-doc-hero p {
        font-size: 15.5px;
        line-height: 1.6;
    }

    .academic-doc-hero-visual {
        min-height: 380px;
        height: 380px;
    }

    .academic-doc-hero-img {
        max-width: 490px;
    }
}

@media (max-width: 575.98px) {
    .academic-doc-hero-inner {
        padding-top: 40px;
    }

    .academic-doc-hero h1 {
        font-size: 30px;
    }

    .academic-doc-hero p {
        font-size: 14.5px;
    }

    .academic-doc-hero-visual {
        min-height: 310px;
        height: 310px;
    }

    .academic-doc-hero-img {
        max-width: 395px;
    }
}

/* =========================================================
   ACADEMIC DOCUMENT MAIN SECTION
========================================================= */
.academic-doc-main {
    position: relative;
    overflow: hidden;
    width: 100%;
    padding: 34px 28px;
    background: linear-gradient(135deg, #eef5ff 0%, #ffffff 45%, #eef6ff 100%);
}

.academic-doc-wrap {
    display: grid;
    grid-template-columns: 315px 1fr;
    gap: 34px;
    width: 100%;
}

/* Sidebar */
.academic-doc-sidebar {
    min-height: 860px;
    padding: 32px 24px;
    border: 1px solid rgba(8, 98, 244, 0.12);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 18px 45px rgba(31, 59, 93, 0.08);
}

.academic-doc-search h3,
.academic-doc-category h3 {
    margin: 0 0 18px;
    color: var(--doc-blue-dark);
    font-size: 18px;
    font-weight: 900;
}

.academic-doc-search-input {
    height: 52px;
    display: grid;
    grid-template-columns: 34px 1fr;
    align-items: center;
    gap: 8px;
    padding: 0 16px;
    border: 1px solid rgba(31, 59, 93, 0.12);
    border-radius: 10px;
    background: var(--doc-white);
    transition: all 0.35s ease;
}

.academic-doc-search-input:hover,
.academic-doc-search-input:focus-within {
    border-color: var(--doc-blue-bright);
    box-shadow: 0 12px 28px rgba(8, 98, 244, 0.10);
}

.academic-doc-search-input i {
    color: #7a86a4;
    font-size: 16px;
}

.academic-doc-search-input input {
    width: 100%;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--doc-blue-dark);
    font-size: 14px;
    font-weight: 600;
}

.academic-doc-search-input input::placeholder {
    color: #9aa5bf;
}

.academic-doc-category {
    margin-top: 42px;
}

.academic-doc-category-item {
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 12px;
    padding: 13px 14px;
    border: 1px solid rgba(31, 59, 93, 0.08);
    border-radius: 9px;
    background: var(--doc-white);
    color: #536180;
    text-decoration: none;
    transition: all 0.35s ease;
}

.academic-doc-category-item span {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 800;
}

.academic-doc-category-item i {
    color: var(--doc-blue-bright);
    font-size: 16px;
}

.academic-doc-category-item strong {
    min-width: 28px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: #edf5ff;
    color: var(--doc-blue-bright);
    font-size: 12px;
    font-weight: 900;
}

.academic-doc-category-item.active,
.academic-doc-category-item:hover {
    background: #eaf3ff;
    color: var(--doc-blue-bright);
    transform: translateX(5px);
    text-decoration: none;
}

.academic-doc-info-card {
    margin-top: 54px;
    display: grid;
    grid-template-columns: 52px 1fr;
    align-items: flex-start;
    gap: 16px;
    padding: 22px 18px;
    border-radius: 12px;
    background: linear-gradient(135deg, #edf5ff 0%, #ffffff 100%);
}

.academic-doc-info-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #eaf3ff;
    color: var(--doc-blue-bright);
    font-size: 22px;
    transition: all 0.35s ease;
}

.academic-doc-info-card:hover .academic-doc-info-icon {
    transform: scale(1.08) rotate(-4deg);
}

.academic-doc-info-card h4 {
    margin: 0 0 10px;
    color: var(--doc-blue-dark);
    font-size: 15px;
    font-weight: 900;
}

.academic-doc-info-card p {
    margin: 0;
    color: #536180;
    font-size: 12.8px;
    font-weight: 500;
    line-height: 1.65;
}

/* Content */
.academic-doc-content {
    min-width: 0;
    padding: 30px 34px 28px;
    border: 1px solid rgba(8, 98, 244, 0.10);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.90);
    box-shadow: 0 18px 45px rgba(31, 59, 93, 0.08);
}

.academic-doc-head {
    margin-bottom: 28px;
}

.academic-doc-head h2 {
    margin: 0 0 8px;
    color: var(--doc-blue-dark);
    font-size: 31px;
    font-weight: 900;
    line-height: 1.2;
}

.academic-doc-head p {
    max-width: 980px;
    margin: 0;
    color: #536180;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.55;
}

/* Grid */
.academic-doc-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px 26px;
}

.academic-doc-card {
    display: block;
    min-height: 338px;
    padding: 14px 14px 16px;
    border: 1px solid rgba(8, 98, 244, 0.10);
    border-radius: 10px;
    background: var(--doc-white);
    box-shadow: 0 12px 30px rgba(31, 59, 93, 0.05);
    text-decoration: none;
    transition: all 0.35s ease;
}

.academic-doc-card:hover {
    transform: translateY(-7px);
    box-shadow: 0 24px 46px rgba(31, 59, 93, 0.12);
    text-decoration: none;
}

.academic-doc-cover {
    height: 190px;
    margin-bottom: 14px;
    overflow: hidden;
    border-radius: 6px;
    background: #edf5ff;
    box-shadow: 0 12px 24px rgba(31, 59, 93, 0.10);
}

.academic-doc-cover img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.academic-doc-card:hover .academic-doc-cover img {
    transform: scale(1.035);
}

.academic-doc-date {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: #7a86a4;
    font-size: 12.5px;
    font-weight: 700;
}

.academic-doc-date i {
    color: var(--doc-blue-bright);
}

.academic-doc-card h3 {
    min-height: 62px;
    margin: 0 0 12px;
    color: var(--doc-blue-dark);
    font-size: 16px;
    font-weight: 900;
    line-height: 1.32;
}

.academic-doc-tag {
    width: fit-content;
    min-height: 26px;
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 11.5px;
    font-weight: 900;
    line-height: 1;
}

.academic-doc-tag.blue {
    background: #e7f0ff;
    color: var(--doc-blue-bright);
}

.academic-doc-tag.green {
    background: #e7f8ed;
    color: #21a56f;
}

.academic-doc-tag.orange {
    background: #fff0df;
    color: #ef7d32;
}

.academic-doc-tag.purple {
    background: #f0e8ff;
    color: #7958e8;
}

.academic-doc-tag.yellow {
    background: #fff4cd;
    color: #9b7300;
}

/* Pagination */
.academic-doc-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 28px;
}

.academic-doc-pagination a,
.academic-doc-pagination span {
    min-width: 42px;
    height: 42px;
    padding: 0 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(31, 59, 93, 0.10);
    border-radius: 8px;
    background: var(--doc-white);
    color: #536180;
    font-size: 13px;
    font-weight: 900;
    text-decoration: none;
}

.academic-doc-pagination a.active,
.academic-doc-pagination a:hover {
    color: var(--doc-white);
    background: var(--doc-blue-bright);
    text-decoration: none;
}

.academic-doc-pagination a.disabled {
    opacity: 0.45;
    pointer-events: none;
}

/* Animation */
.academic-doc-main .fade-up {
    opacity: 0;
    animation: academicDocMainFadeUp 0.85s ease forwards;
}

.academic-doc-main .delay-1 {
    animation-delay: 0.16s;
}

@keyframes academicDocMainFadeUp {
    from {
        opacity: 0;
        transform: translateY(34px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 1399.98px) {
    .academic-doc-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .academic-doc-cover {
        height: 185px;
    }
}

@media (max-width: 1199.98px) {
    .academic-doc-wrap {
        grid-template-columns: 280px 1fr;
        gap: 24px;
    }

    .academic-doc-content {
        padding: 28px 24px;
    }

    .academic-doc-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991.98px) {
    .academic-doc-main {
        padding: 24px 18px;
    }

    .academic-doc-wrap {
        grid-template-columns: 1fr;
    }

    .academic-doc-content {
        order: 1;
    }

    .academic-doc-sidebar {
        order: 2;
        min-height: auto;
    }

    .academic-doc-head {
        text-align: center;
    }

    .academic-doc-head p {
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 767.98px) {
    .academic-doc-main {
        padding: 18px 12px;
    }

    .academic-doc-sidebar,
    .academic-doc-content {
        border-radius: 14px;
    }

    .academic-doc-content {
        padding: 24px 18px;
    }

    .academic-doc-head h2 {
        font-size: 25px;
    }

    .academic-doc-head p {
        font-size: 14.5px;
    }

    .academic-doc-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .academic-doc-card {
        max-width: 310px;
        width: 100%;
        margin: 0 auto;
    }

    .academic-doc-cover {
        height: 220px;
    }

    .academic-doc-pagination {
        flex-wrap: wrap;
    }

    .academic-doc-info-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .academic-doc-info-icon {
        margin: 0 auto;
    }
}

/* =========================================================
   ACADEMIC DOCUMENT SHOW HERO
========================================================= */
.academic-doc-show-hero {
    width: 100%;
    overflow: hidden;
    background: linear-gradient(135deg, #f8fbff 0%, #edf5ff 48%, #cfe0ff 100%);
}

.academic-doc-show-hero-inner {
    min-height: 610px;
    display: flex;
    align-items: center;
    padding: 110px 92px 92px;
}

.academic-doc-show-content {
    max-width: 1350px;
}

.academic-doc-show-badge {
    width: fit-content;
    min-height: 64px;
    display: inline-flex;
    align-items: center;
    gap: 18px;
    padding: 10px 28px 10px 18px;
    margin-bottom: 52px;
    border-radius: 18px;
    background: rgba(8, 98, 244, 0.10);
    color: var(--doc-blue-bright);
    font-size: 18px;
    font-weight: 900;
    line-height: 1;
    animation: academicDocBadgeFloat 3.8s ease-in-out infinite;
}

.academic-doc-show-badge i {
    color: var(--doc-blue-bright);
    font-size: 23px;
}

.academic-doc-show-content h1 {
    max-width: 1300px;
    margin: 0;
    color: var(--doc-blue-dark);
    font-size: 48px;
    font-weight: 900;
    line-height: 1.22;
    letter-spacing: -2px;
}

/* Responsive */
@media (max-width: 1399.98px) {
    .academic-doc-show-hero-inner {
        min-height: 560px;
        padding: 96px 72px 82px;
    }

    .academic-doc-show-content h1 {
        font-size: 48px;
    }
}

@media (max-width: 1199.98px) {
    .academic-doc-show-hero-inner {
        min-height: 500px;
        padding: 86px 52px 72px;
    }

    .academic-doc-show-content h1 {
        font-size: 48px;
    }

    .academic-doc-show-badge {
        min-height: 56px;
        margin-bottom: 38px;
        font-size: 18px;
    }

    .academic-doc-show-badge i {
        font-size: 23px;
    }
}

@media (max-width: 991.98px) {
    .academic-doc-show-hero-inner {
        min-height: auto;
        padding: 76px 28px 70px;
        text-align: center;
        justify-content: center;
    }

    .academic-doc-show-badge {
        margin-left: auto;
        margin-right: auto;
    }

    .academic-doc-show-content h1 {
        font-size: 42px;
        line-height: 1.25;
    }
}

@media (max-width: 767.98px) {
    .academic-doc-show-hero-inner {
        padding: 60px 18px 56px;
    }

    .academic-doc-show-badge {
        min-height: 46px;
        gap: 10px;
        padding: 8px 18px;
        margin-bottom: 30px;
        border-radius: 14px;
        font-size: 15px;
    }

    .academic-doc-show-badge i {
        font-size: 19px;
    }

    .academic-doc-show-content h1 {
        font-size: 32px;
        letter-spacing: -0.6px;
    }
}

@media (max-width: 575.98px) {
    .academic-doc-show-content h1 {
        font-size: 27px;
    }
}

/* =========================================================
   ACADEMIC DOCUMENT SHOW CONTENT
========================================================= */
.academic-doc-show-content {
    display: block;
}

.academic-doc-detail-card,
.academic-doc-share-card,
.academic-doc-related-card {
    border: 1px solid rgba(8, 98, 244, 0.10);
    border-radius: 14px;
    background: var(--doc-white);
    box-shadow: 0 14px 36px rgba(31, 59, 93, 0.06);
}

.academic-doc-detail-card {
    display: grid;
    grid-template-columns: 330px 1fr;
    gap: 56px;
    align-items: center;
    padding: 28px 34px;
    margin-top: 22px;
}

.academic-doc-detail-cover {
    width: 100%;
    max-width: 330px;
    height: 430px;
    overflow: hidden;
    border-radius: 8px;
    background: #edf5ff;
    box-shadow: 0 18px 40px rgba(31, 59, 93, 0.13);
}

.academic-doc-detail-cover img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.academic-doc-detail-card:hover .academic-doc-detail-cover img {
    transform: scale(1.025);
}

.academic-doc-detail-info h2 {
    max-width: 680px;
    margin: 22px 0 16px;
    color: var(--doc-blue-dark);
    font-size: 34px;
    font-weight: 900;
    line-height: 1.26;
    letter-spacing: -0.6px;
}

.academic-doc-detail-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    margin-bottom: 24px;
    color: #6f7b99;
    font-size: 15px;
    font-weight: 800;
}

.academic-doc-detail-meta span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.academic-doc-detail-meta i {
    color: var(--doc-blue-bright);
}

.academic-doc-detail-info p {
    max-width: 760px;
    margin: 0 0 28px;
    color: #536180;
    font-size: 17px;
    font-weight: 500;
    line-height: 1.7;
}

.academic-doc-download-btn {
    min-height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 13px 34px;
    border-radius: 8px;
    background: var(--doc-blue-bright);
    color: var(--doc-white);
    font-size: 15.5px;
    font-weight: 900;
    text-decoration: none;
    box-shadow: 0 16px 32px rgba(8, 98, 244, 0.22);
    transition: all 0.35s ease;
}

.academic-doc-download-btn:hover {
    color: var(--doc-white);
    transform: translateY(-5px);
    box-shadow: 0 22px 42px rgba(8, 98, 244, 0.30);
    text-decoration: none;
}

.academic-doc-share-card {
    margin-top: 16px;
    padding: 24px 28px;
}

.academic-doc-share-card h3,
.academic-doc-related-card h3 {
    margin: 0 0 16px;
    color: var(--doc-blue-dark);
    font-size: 18px;
    font-weight: 900;
}

.academic-doc-related-card {
    margin-top: 16px;
    padding: 24px 28px;
}

.academic-doc-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.academic-doc-related-item {
    display: grid;
    grid-template-columns: 96px 1fr;
    gap: 18px;
    align-items: center;
    min-height: 128px;
    padding: 16px;
    border: 1px solid rgba(8, 98, 244, 0.10);
    border-radius: 10px;
    background: var(--doc-white);
    color: inherit;
    text-decoration: none;
    transition: all 0.35s ease;
}

.academic-doc-related-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 36px rgba(31, 59, 93, 0.10);
    text-decoration: none;
}

.academic-doc-related-cover {
    width: 96px;
    height: 96px;
    overflow: hidden;
    border-radius: 6px;
    background: #edf5ff;
}

.academic-doc-related-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.academic-doc-related-item h4 {
    margin: 0 0 10px;
    color: var(--doc-blue-dark);
    font-size: 15.5px;
    font-weight: 900;
    line-height: 1.32;
}

.academic-doc-related-item p {
    margin: 0 0 9px;
    color: #7a86a4;
    font-size: 13px;
    font-weight: 700;
}

/* Responsive */
@media (max-width: 1199.98px) {
    .academic-doc-detail-card {
        grid-template-columns: 280px 1fr;
        gap: 34px;
    }

    .academic-doc-detail-cover {
        height: 370px;
    }

    .academic-doc-related-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 991.98px) {
    .academic-doc-detail-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .academic-doc-detail-cover {
        margin: 0 auto;
    }

    .academic-doc-detail-meta {
        justify-content: center;
    }

    .academic-doc-detail-info p {
        margin-left: auto;
        margin-right: auto;
    }

    .academic-doc-download-btn {
        width: 100%;
        max-width: 320px;
    }
}

@media (max-width: 767.98px) {
    .academic-doc-detail-card,
    .academic-doc-share-card,
    .academic-doc-related-card {
        border-radius: 12px;
    }

    .academic-doc-detail-card {
        padding: 22px 18px;
        gap: 24px;
    }

    .academic-doc-detail-cover {
        max-width: 260px;
        height: 340px;
    }

    .academic-doc-detail-info h2 {
        font-size: 25px;
    }

    .academic-doc-detail-info p {
        font-size: 14.5px;
    }

    .academic-doc-share-card,
    .academic-doc-related-card {
        padding: 22px 18px;
    }

    .academic-doc-related-item {
        grid-template-columns: 82px 1fr;
        gap: 14px;
        text-align: left;
    }

    .academic-doc-related-cover {
        width: 82px;
        height: 82px;
    }
}