.student-obavjestenja .section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.filter-katedra select {
  padding: 10px 14px;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  font-size: 14px;
  background: #fff;
  cursor: pointer;
}

.obavjestenja-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.obavjestenje-card {
  background: #fff;
  border: 1px solid #e4e9f0;
  border-radius: 16px;
  position: relative;
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.obavjestenje-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.1);
}

.obavjestenje-card h3 {
  font-size: 18px;
  color: #ffffff;
  margin-bottom: 10px;
}

.obavjestenje-card p {
  font-size: 14px;
  color: #444;
  margin-bottom: 12px;
}

.obavjestenje-card .meta {
  font-size: 12px;
  color: #777;
}

.badge {
  position: absolute;
  top: 26px;
  right: 16px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.student-obavjestenja {
  padding: 70px 20px;
  background: linear-gradient(180deg, #f9fbfd, #f3f7fb);
  font-family: 'Inter', sans-serif;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 45px;
  text-align: center;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.filter-tabs .tab {
  padding: 10px 20px;
  border: none;
  border-radius: 30px;
  background: #e6eff7;
  color: #083e63;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-tabs .tab:hover {
  background: #d0e4f5;
}

.filter-tabs .tab.active {
  background: #1b225a;
  color: #fff;
}

.obavjestenja-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.obavjestenje-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e4e9f0;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.obavjestenje-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 18px rgba(0,0,0,0.12);
}

.card-header {
  background: #1b225a;
  color: #fff;
  padding: 18px 22px;
}

.card-header h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 8px 0 0;
}

.katedra-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  background: rgba(255,255,255,0.1);
  padding: 4px 12px;
  border-radius: 10px;
  margin-right: 10px;
}

.badge {
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.badge-hitno { background: #dc2626; color: #fff; }
.badge-vazno { background: #eab308; color: #000; }
.badge-info  { background: #2563eb; color: #fff; }

.card-body {
  flex-grow: 1;
  padding: 20px 22px;
}

.card-body p {
  font-size: 15px;
  color: #333;
  margin-bottom: 18px;
  line-height: 1.5;
}

.downloads {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-download.pdf {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.btn-download.doc {
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

.btn-download:hover {
  transform: translateY(-3px);
  opacity: 0.9;
}

.card-footer {
  padding: 12px 22px;
  background: #fafafa;
  font-size: 13px;
  color: #555;
  text-align: right;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}