/* ---------- Background + Hero Space ---------- */
/* Replace the URL with your hero image path */
.hero-bg {
  background: url("school_images/VDS.png") center/cover no-repeat fixed;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: -1;
  filter: none;
  /* subtle dark overlay if desired: uncomment
  box-shadow: inset 0 0 0 1000px rgba(0,0,0,0.08);
  */
}

/* This spacer creates the visible top gap before content scrolls */
.hero-space {
  height: 420px;      /* adjust to increase/decrease top gap */
  width: 100%;
}

/* ---------- Content Container ---------- */
.content-section {
  padding: 40px 15px 80px;
  max-width: 1100px;
}

/* White translucent boxes (cards) */
.white-box {
  background-color: rgba(255,255,255,0.95);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(18, 38, 63, 0.12);
}

/* Titles */
.page-title {
  text-align: center;
  font-size: 28px;
  color: #0b578d;
  font-weight: 700;
  margin-bottom: 12px;
}

.lead {
  color: #444;
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
}

/* Department title + small underline */
.dept-title {
  text-align: center;
  font-weight: 700;
  font-size: 20px;
  margin-bottom: 18px;
  position: relative;
  color: #0b578d;
}
.dept-title::after {
  content: "";
  display: block;
  height: 4px;
  width: 60px;
  background: #d9534f;   /* accent */
  margin: 10px auto 0;
  border-radius: 2px;
}

/* Buttons wrap */
.button-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  align-items: center;
  padding: 12px;
}

/* Faculty button look */
.faculty-btn {
  background: #fff;
  border: 1px solid #e0e0e0;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  white-space: nowrap;
  transition: all 0.18s ease;
  box-shadow: 0 2px 6px rgba(13, 24, 40, 0.04);
}
.faculty-btn:hover {
  background: #0b578d;
  color: #fff;
  transform: translateY(-3px);
  border-color: #0b578d;
}

/* Responsive adjustments */
@media (max-width: 767.98px) {
  .hero-space { height: 320px; }
  .content-section { padding: 24px 12px 60px; }
  .page-title { font-size: 22px; }
  .dept-title { font-size: 18px; }
  .faculty-btn { font-size: 13px; padding: 9px 12px; }
}

/* Add spacing between white boxes */
.white-box + .white-box {
  margin-top: 22px;
}

.nav-pills .nav-link {
  border-radius: 20px;
  padding: 8px 18px;
  color: #0b578d;
  font-weight: 600;
  border: 1px solid #0b578d;
  transition: 0.2s;
}

.nav-pills .nav-link:hover {
  background: #0b578d;
  color: #fff;
}

.nav-pills .nav-link.active {
  background: #d9534f;
  border-color: #d9534f;
  color: #fff;
}