:root {
  --jas-blue: #0f79b7;
  --jas-blue-deep: #0b5da0;
  --jas-blue-dark: #0a4f8c;
  --jas-orange: #ff8c26;
  --jas-red: #ea5f51;
  --jas-text: #202b38;
  --jas-muted: #5d6b7b;
  --jas-line: #dfe5ec;
  --jas-badge: #edf1f5;
  --jas-card-shadow: 0 8px 22px rgba(19, 48, 79, 0.09);
}

.jas-page {
  background: #ffffff;
  color: var(--jas-text);
  padding: 42px 0 80px;
}

.jas-page__inner {
  width: min(1760px, calc(100% - 64px));
  margin: 0 auto;
}

.jas-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 42px;
  color: #637184;
  font-size: 18px;
}

.jas-breadcrumbs a {
  color: #475569;
  text-decoration: none;
}

.jas-breadcrumbs a:hover {
  color: var(--jas-blue-deep);
}

.jas-breadcrumbs__sep {
  color: #8d98a7;
  font-size: 26px;
  line-height: 1;
}

.jas-layout {
  display: grid;
  grid-template-columns: 352px minmax(0, 1fr);
  gap: 78px;
  align-items: start;
}

.jas-sidebar__card {
  background: #f4f7fb;
  border-top: 4px solid var(--jas-blue);
  border-radius: 10px 10px 0 0;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(214, 222, 232, 0.72);
}

.jas-sidebar__heading {
  padding: 22px 24px;
  font-size: 31px;
  font-weight: 700;
  color: #243446;
  background: #f3f6fa;
  border-bottom: 1px solid #dce4ec;
}

.jas-sidebar__body {
  padding: 0 22px 10px;
}

.jas-volume {
  border-bottom: 1px solid #dde5ed;
}

.jas-volume:last-child {
  border-bottom: 0;
}

.jas-volume__toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: transparent;
  border: 0;
  color: #213347;
  padding: 20px 0;
  font-size: 24px;
  cursor: pointer;
  text-align: left;
}

.jas-volume__caret {
  color: #6e8094;
  font-size: 28px;
  transform: rotate(-90deg);
  transition: transform 0.2s ease;
}

.jas-volume.is-open .jas-volume__caret {
  transform: rotate(0deg);
}

.jas-volume__issues {
  display: none;
  padding: 0 0 18px 20px;
}

.jas-volume.is-open .jas-volume__issues {
  display: block;
}

.jas-issue-link {
  display: block;
  color: var(--jas-blue-deep);
  text-decoration: none;
  font-size: 23px;
  font-weight: 600;
  padding: 12px 0;
}

.jas-issue-link.is-active {
  color: var(--jas-blue-dark);
}

.jas-content__header {
  margin-bottom: 34px;
}

.jas-content__header h1,
.jas-single__title {
  margin: 0;
  font-size: clamp(34px, 2.45vw, 58px);
  line-height: 1.16;
  color: #243245;
  font-weight: 700;
}

.jas-card,
.jas-single {
  background: #fff;
  border: 1px solid rgba(220, 228, 236, 0.8);
  box-shadow: var(--jas-card-shadow);
  padding: 28px 28px 30px;
}

.jas-content__cards .jas-card + .jas-card {
  margin-top: 28px;
}

.jas-card__topline {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.jas-badge {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 14px;
  background: var(--jas-badge);
  color: #253547;
  font-size: 19px;
  line-height: 1;
}

.jas-access {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--jas-orange);
  font-size: 19px;
}

.jas-access__icon {
  width: 15px;
  height: 18px;
  border: 2px solid currentColor;
  border-radius: 8px;
  display: inline-block;
  position: relative;
  box-sizing: border-box;
}

.jas-access__icon::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -8px;
  width: 9px;
  height: 8px;
  border: 2px solid currentColor;
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
  transform: translateX(-35%);
}

.jas-card__title,
.jas-card__title a {
  color: var(--jas-blue-deep);
  text-decoration: none;
  font-size: clamp(28px, 2.2vw, 49px);
  line-height: 1.33;
  font-weight: 700;
  margin: 0 0 8px;
}

.jas-card__title a:hover {
  color: var(--jas-blue-dark);
}

.jas-card__authors,
.jas-single__authors {
  margin: 0 0 24px;
  font-size: 24px;
  color: #243445;
}

.jas-card__meta,
.jas-single__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px 36px;
  margin-bottom: 24px;
  font-size: 20px;
  line-height: 1.55;
  color: #243445;
}

.jas-card__meta-item {
  min-width: 0;
}

.jas-card__meta-item a,
.jas-single__meta a,
.jas-inline-link {
  color: var(--jas-blue-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.jas-card__abstract,
.jas-single__section {
  font-size: 20px;
  line-height: 1.7;
  color: #273646;
}

.jas-card__abstract {
  margin-bottom: 26px;
}

.jas-card__actions,
.jas-single__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  align-items: center;
}

.jas-action {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-size: 20px;
  color: #1e354c;
  text-decoration: none;
}

.jas-action:hover {
  color: var(--jas-blue-deep);
}

.jas-action__icon {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  color: #fff;
  font-size: 22px;
  border-radius: 3px;
  line-height: 1;
}

.jas-action--download .jas-action__icon {
  background: var(--jas-red);
}

.jas-action--view .jas-action__icon {
  background: var(--jas-blue-deep);
}

.jas-page--single .jas-page__inner {
  width: min(1180px, calc(100% - 48px));
}

.jas-single-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 398px;
  gap: 46px;
  align-items: start;
}

.jas-single-main {
  min-width: 0;
}

.jas-single-topline {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  margin-bottom: 18px;
  font-size: 17px;
  color: #233446;
}

.jas-single-topline__access {
  color: var(--jas-orange);
}

.jas-single-topline__peer {
  color: var(--jas-blue-deep);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.jas-single__published {
  margin: 0 0 22px;
  font-size: 18px;
  line-height: 1.6;
}

.jas-single__published strong {
  color: var(--jas-blue-deep);
  font-style: italic;
}

.jas-single__stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin: 0 0 28px;
  font-size: 18px;
}

.jas-action--share {
  border: 2px solid #1aa5d4;
  background: #fff;
  cursor: pointer;
  padding: 0 24px;
  min-height: 58px;
}

.jas-action--share .jas-action__icon {
  background: transparent;
  color: #1aa5d4;
  width: auto;
}

.jas-single__section + .jas-single__section,
.jas-single-info-card + .jas-single__section,
.jas-single__section + .jas-single-info-card {
  margin-top: 34px;
}

.jas-single__section h2 {
  margin: 0 0 12px;
  font-size: 28px;
  line-height: 1.3;
  color: #233345;
}

.jas-single__section p {
  margin: 0;
}

.jas-prose {
  font-size: 19px;
  line-height: 1.8;
  color: #253649;
}

.jas-prose > *:first-child {
  margin-top: 0;
}

.jas-prose a {
  color: var(--jas-blue-deep);
}

.jas-single-info-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px 26px;
  margin-top: 34px;
  padding: 30px 24px;
  background: #eaf3fb;
  border-radius: 14px;
  font-size: 18px;
  line-height: 1.7;
}

.jas-single-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 36px;
  padding: 24px 28px;
  background: #f5f7f9;
}

.jas-single-nav div:last-child {
  text-align: right;
}

.jas-single-nav a {
  color: var(--jas-blue-deep);
  text-decoration: none;
  font-size: 18px;
}

.jas-single-sidebar {
  position: relative;
}

.jas-sticky-panel {
  position: sticky;
  top: 28px;
}

.jas-sticky-panel__close {
  text-align: right;
  font-size: 34px;
  line-height: 1;
  color: #2a2f35;
  margin-bottom: 16px;
}

.jas-journal-cover {
  margin-bottom: 18px;
  background: #fff;
  border: 1px solid #dbe5ef;
}

.jas-journal-cover img {
  display: block;
  width: 100%;
  height: auto;
}

.jas-journal-cover__placeholder {
  padding: 34px 24px;
  min-height: 260px;
  display: grid;
  place-items: center;
  text-align: center;
  gap: 12px;
  color: #243445;
}

.jas-sidebar-button {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60px;
  margin-bottom: 16px;
  text-decoration: none;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.jas-sidebar-button--download {
  background: #18a6d8;
}

.jas-sidebar-button--submit {
  background: #ef594a;
}

.jas-side-tabs {
  margin-top: 26px;
  border: 1px solid #dfe5ec;
  background: #fff;
}

.jas-side-tabs__nav {
  display: flex;
  background: #f5f7fb;
  border-bottom: 1px solid #dfe5ec;
}

.jas-side-tabs__nav button {
  flex: 1;
  border: 0;
  background: transparent;
  padding: 16px 14px;
  font-size: 17px;
  font-weight: 700;
  color: #2e3a47;
  cursor: pointer;
}

.jas-side-tabs__nav button.is-active {
  background: #fff;
  color: #1296c9;
  box-shadow: inset 0 3px 0 #1296c9;
}

.jas-side-tabs__panel {
  display: none;
  max-height: 560px;
  overflow: auto;
  padding: 16px;
}

.jas-side-tabs__panel.is-active {
  display: block;
}

.jas-side-tabs__panel a {
  display: block;
  padding: 11px 0;
  border-bottom: 1px solid #e3e8ee;
  color: var(--jas-blue-deep);
  text-decoration: none;
  font-size: 17px;
  line-height: 1.5;
}

.jas-asset-card {
  padding: 12px 0 18px;
  border-bottom: 1px solid #e3e8ee;
}

.jas-asset-card img {
  display: block;
  width: 100%;
  height: auto;
  margin: 10px 0;
}

.jas-empty-state {
  background: #fff;
  border: 1px solid var(--jas-line);
  padding: 28px;
  font-size: 20px;
  color: var(--jas-muted);
}

.jas-shortcode-wrap {
  width: 100%;
}

.jas-filter-wrap {
  width: 100%;
}

.jas-filter-form {
  margin-bottom: 28px;
  padding: 24px;
  background: #f5f8fb;
  border: 1px solid #dce5ee;
}

.jas-filter-form--vertical .jas-filter-grid {
  grid-template-columns: 1fr;
}

.jas-filter-form--vertical .jas-filter-actions {
  flex-direction: column;
  align-items: stretch;
}

.jas-filter-form--vertical .jas-filter-button {
  width: 100%;
}

.jas-filter-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.jas-filter-field label {
  display: block;
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 700;
  color: #223446;
}

.jas-filter-field input {
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  border: 1px solid #cfd9e5;
  background: #fff;
  font-size: 15px;
}

.jas-filter-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.jas-filter-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
}

.jas-filter-button--primary {
  border: 0;
  background: var(--jas-blue-deep);
  color: #fff;
  cursor: pointer;
}

.jas-filter-button--secondary {
  border: 1px solid #cbd6e2;
  background: #fff;
  color: #223446;
}

@media (max-width: 1400px) {
  .jas-page__inner {
    width: min(1280px, calc(100% - 36px));
  }

  .jas-layout {
    grid-template-columns: 290px minmax(0, 1fr);
    gap: 36px;
  }

  .jas-sidebar__heading {
    font-size: 24px;
  }

  .jas-volume__toggle,
  .jas-issue-link {
    font-size: 20px;
  }

  .jas-card__meta,
  .jas-single__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .jas-page {
    padding: 28px 0 48px;
  }

  .jas-page__inner,
  .jas-page--single .jas-page__inner {
    width: calc(100% - 24px);
  }

  .jas-breadcrumbs {
    margin-bottom: 24px;
    font-size: 15px;
    gap: 8px;
  }

  .jas-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .jas-single-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .jas-filter-grid {
    grid-template-columns: 1fr;
  }

  .jas-sidebar {
    order: 2;
  }

  .jas-content {
    order: 1;
  }

  .jas-card,
  .jas-single {
    padding: 22px 18px 24px;
  }

  .jas-card__authors,
  .jas-single__authors,
  .jas-card__meta,
  .jas-single__meta,
  .jas-card__abstract,
  .jas-single__section,
  .jas-prose,
  .jas-action {
    font-size: 17px;
  }

  .jas-card__meta,
  .jas-single__meta {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .jas-single-info-card {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 22px 18px;
  }

  .jas-single-nav {
    grid-template-columns: 1fr;
    padding: 18px;
  }

  .jas-single-nav div:last-child {
    text-align: left;
  }

  .jas-sticky-panel {
    position: static;
  }
}