/* =====================================================
   GLOBAL
===================================================== */

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, "Helvetica Neue", Arial, sans-serif;
  color: #1f2933;
  background: #f5f7fa;
}

a {
  text-decoration: none;
}

.container {
  max-width: 1200px;
}

/* =====================================================
   TOP INSTITUTE BAR (BLUE THEME)
===================================================== */

.top-institute-bar {
  background: linear-gradient(180deg, #1b2f4a, #243f63);
  color: #ffffff;
  padding: 14px 0;
}

/* -------- TOP LOGO -------- */
.top-logo {
  height: 70px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

/* Tablet */
@media (max-width: 991px) {
  .top-logo {
    height: 60px;
  }
}

/* Mobile */
@media (max-width: 576px) {
  .top-logo {
    height: 52px;
  }
}

.top-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
}

.top-subtitle {
  font-size: 14px;
  opacity: 0.9;
}

.top-meta {
  font-size: 13px;
  opacity: 0.8;
}

/* =====================================================
   MAIN NAV BAR
===================================================== */

.main-nav {
  background: #1b2f4a;
}

.main-nav .container {
  min-height: 50px;
}

.main-nav a {
  color: #ffffff;
  font-weight: 500;
  padding: 14px 0;
  display: inline-block;
}

.main-nav a:hover {
  color: #4fa3d1;
}

/* -------- DROPDOWN -------- */

.nav-drop {
  position: relative;
}

.nav-drop > a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.nav-drop-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #243f63;
  min-width: 190px;
  padding: 8px 0;
  z-index: 1000;
  border-radius: 4px;
}

.nav-drop:hover .nav-drop-menu {
  display: block;
}

.nav-drop-menu a {
  display: block;
  padding: 8px 14px;
  color: #ffffff;
  white-space: nowrap;
}

.nav-drop-menu a:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* =====================================================
   NOTICE BAR
===================================================== */

.notice-bar {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  padding: 8px 0;
  font-size: 14px;
}

.notice-bar strong {
  color: #1b2f4a;
  white-space: nowrap;
}

/* =====================================================
   BRAND BAR (SECONDARY HEADER)
===================================================== */

.brandbar {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

/* -------- BRAND LOGO -------- */
.brand-logo {
  height: 60px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

/* Tablet */
@media (max-width: 991px) {
  .brand-logo {
    height: 52px;
  }
}

/* Mobile */
@media (max-width: 576px) {
  .brand-logo {
    height: 46px;
  }
}

.brand-title {
  font-size: 20px;
  font-weight: 700;
  color: #1b2f4a;
}

.brand-subtitle {
  font-size: 13px;
  color: #4b5563;
}

/* =====================================================
   HERO SECTION (BLUE CARD STYLE)
===================================================== */

.hero-section {
  padding: 70px 0;
  background: #f5f7fa;
}

.hero-title {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.2;
  color: #1b2f4a;
}

.hero-subtitle {
  font-size: 18px;
  margin-top: 12px;
  color: #4b5563;
}

/* Tablet */
@media (max-width: 991px) {
  .hero-title {
    font-size: 34px;
  }
}

/* Mobile */
@media (max-width: 576px) {
  .hero-title {
    font-size: 28px;
  }
}

/* -------- HERO CAROUSEL -------- */

.carousel-inner {
  background: linear-gradient(180deg, #1b2f4a, #2f5f86);
  border-radius: 14px;
}

.carousel-inner img {
  border-radius: 14px;
}

/* Arrows */
.carousel-control-prev-icon,
.carousel-control-next-icon {
  filter: invert(1);
}

/* Indicators */
.carousel-indicators button {
  background-color: rgba(255, 255, 255, 0.5);
}

.carousel-indicators .active {
  background-color: #ffffff;
}

/* =====================================================
   FEATURE / PROGRAM CARDS
===================================================== */

.feature-box,
.program-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  padding: 22px;
  height: 100%;
  border-radius: 10px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-box:hover,
.program-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.feature-box i {
  font-size: 28px;
  color: #2f5f86;
  margin-bottom: 10px;
}

/* =====================================================
   CTA SECTION
===================================================== */

.cta-section {
  background: linear-gradient(180deg, #1b2f4a, #243f63);
  color: #ffffff;
  padding: 70px 20px;
}

.cta-section h2 {
  font-weight: 800;
}

/* =====================================================
   FOOTER
===================================================== */

.site-footer {
  background: #1b2f4a;
  color: #ffffff;
}

.site-footer a {
  color: #ffffff;
  opacity: 0.85;
}

.site-footer a:hover {
  opacity: 1;
}