:root {
  --betns-primary: #2f6f60;
  --betns-primary-ink: #1f4a40;
  --betns-accent: #d2a24f;
  --betns-bg: #f8f7f3;
  --betns-text: #24323a;
  --bs-primary: #2f6f60;
  --bs-primary-rgb: 47, 111, 96;
}

body {
  background: linear-gradient(180deg, #f4f7f5 0%, #ffffff 28%, #f9f7f2 100%);
  color: var(--betns-text);
}

.site-header {
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid #dde8e2;
}

.brand-logo {
  width: 58px;
  height: 58px;
  object-fit: contain;
}

.hero {
  background: linear-gradient(120deg, rgba(31, 74, 64, 0.85), rgba(47, 111, 96, 0.78)), url("../images/betns-campus-aerial.jpg");
  background-size: cover;
  background-position: center;
  color: #ffffff;
  border-radius: 1rem;
  padding: 2.25rem;
}

.page-hero {
  background: linear-gradient(120deg, rgba(47, 111, 96, 0.12), rgba(210, 162, 79, 0.24));
  border: 1px solid #d8e5df;
  border-radius: 1rem;
  padding: 1.75rem;
}

.section-card {
  border: 1px solid #dce8e2;
  border-radius: 1rem;
  box-shadow: 0 10px 26px rgba(36, 50, 58, 0.08);
}

.section-card .card-header {
  background: #eef4f1;
  border-bottom: 1px solid #dce8e2;
  color: var(--betns-primary-ink);
  font-weight: 600;
}

.doc-library .list-group-item {
  border-color: #dce8e2;
}

.doc-library .doc-title {
  font-weight: 600;
}

.table thead th {
  background: #eef4f1;
  color: var(--betns-primary-ink);
}

.footer {
  border-top: 1px solid #dde8e2;
  background: #faf9f6;
}

.notice {
  border-left: 4px solid var(--betns-accent);
  background: #fdf5e8;
}

.image-card img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: 0.9rem;
}

.navbar .nav-link {
  color: #2b3840;
  font-weight: 500;
}

.navbar .nav-link.active,
.navbar .nav-link:hover,
.dropdown-item:focus,
.dropdown-item:hover {
  color: var(--betns-primary-ink);
}

.navbar .dropdown-menu {
  border: 1px solid #dce8e2;
  border-radius: 0.75rem;
  box-shadow: 0 12px 30px rgba(36, 50, 58, 0.12);
}