.department-tab-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  padding-block: 46px 80px;
}
.department-sidebar {
  position: sticky;
  top: 24px;
  background: #f3f7f7;
  border: 1px solid #dce7e7;
  border-radius: 12px;
  padding: 23px 12px 12px;
}
.department-nav-label {
  font-size: 10px;
  letter-spacing: 0.13em;
  font-weight: 600;
  color: #637b83;
  padding: 0 12px;
  margin: 0 0 16px;
}
.department-sidebar .department-section-links {
  display: grid;
  gap: 5px;
}
.department-sidebar a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  width: 100%;
  text-align: left;
  font:
    500 13px/1.65 Poppins,
    sans-serif;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 13px 12px;
  background: transparent;
  color: var(--navy);
  cursor: pointer;
}
.department-tab-number {
  font-size: 10px;
  opacity: 0.6;
  font-variant-numeric: tabular-nums;
}
.department-sidebar a:hover {
  background: #e6efee;
}
.department-sidebar a[aria-current="location"] {
  background: var(--navy);
  color: white;
  box-shadow: 0 4px 12px #12313c15;
}
.department-sidebar a:focus-visible,
.department-panels section:focus-visible {
  outline: 3px solid #1a9185;
  outline-offset: 3px;
}
.department-panels {
  min-width: 0;
  border: 1px solid #dfe8e9;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 8px 30px #17394606;
  padding: 34px;
  min-height: 480px;
}
.department-panels > .dept-section,
.department-panels > .department-faculty {
  margin: 0;
}
.department-panels .department-introduction {
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 28px;
}
.department-panels .department-introduction.hod-only {
  grid-template-columns: minmax(0, 270px);
}
.department-panels h2,
.department-panels .department-overview h2 {
  font-size: 29px;
  line-height: 1.35;
  margin-bottom: 24px;
}
.department-panels .department-overview .department-lead {
  font-size: 17px;
}
.department-panels .department-overview p,
.department-panels .dept-section p,
.department-panels .department-list li {
  font-size: 14px;
  line-height: 1.9;
}
.department-panels .hod-caption {
  padding: 18px;
}
.department-panels .hod-caption h3 {
  font-size: 17px;
}
.department-panels .dept-panel-grid {
  gap: 16px;
}
.department-panels .dept-content-panel {
  padding: 22px;
}
.department-panels .dept-content-panel h3 {
  font-size: 19px;
}
.department-panels .dept-section > .department-list {
  columns: 1;
}
.department-panels .faculty-heading {
  align-items: start;
}
.department-panels .faculty-heading h2 {
  margin-bottom: 0;
}
@media (max-width: 1100px) {
  .department-tab-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 24px;
  }
  .department-panels {
    padding: 26px;
  }
  .department-panels .department-introduction {
    grid-template-columns: 1fr;
  }
  .department-panels .hod-card {
    max-width: 270px;
    margin: 0;
  }
  .department-panels .dept-panel-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 650px) {
  .department-tab-layout {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-block: 28px 50px;
  }
  .department-sidebar {
    position: static;
    padding: 18px 10px 10px;
  }
  .department-sidebar .department-section-links {
    grid-template-columns: 1fr 1fr;
  }
  .department-sidebar a {
    font-size: 12px;
    padding: 10px;
    gap: 8px;
  }
  .department-panels {
    padding: 23px;
    min-height: 0;
  }
  .department-panels h2,
  .department-panels .department-overview h2 {
    font-size: 25px;
  }
  .department-panels .faculty-heading {
    flex-direction: column;
  }
  .department-panels .dept-facts {
    grid-template-columns: 1fr;
  }
}
@media print {
  .department-sidebar {
    display: none;
  }
  .department-tab-layout {
    display: block;
  }
  .department-panels {
    border: 0;
    padding: 0;
  }
  .department-panels > section {
    margin-bottom: 35px !important;
  }
}

/* Continuous content with native anchor navigation. */
html:has(.department-tab-layout) {
  scroll-behavior: smooth;
}
.department-sidebar a {
  text-decoration: none;
}
.department-panels > section {
  scroll-margin-top: 28px;
}
.department-panels > section:not(:first-child) {
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid #dfe8e9;
}
.department-sidebar {
  max-height: calc(100vh - 48px);
  overflow-y: auto;
}
@media (max-width: 650px) {
  .department-sidebar {
    max-height: none;
    overflow: visible;
  }
  .department-panels > section:not(:first-child) {
    margin-top: 30px;
    padding-top: 30px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html:has(.department-tab-layout) {
    scroll-behavior: auto;
  }
}