:root {
  --primary-blue: #001f3f; /* Navy blue */
  --primary-pink: #e6007e; /* Pink from A LEARNING LARGE PLATFORM */
  --secondary-yellow: #ffde00; /* Yellow from OEG logo orbit */
  --text-dark: #2d3436;
  --text-light: #ffffff;
  --section-bg-light: #f4f9f9;
  --bg-white: #ffffff;
}

body {
  font-family: 'Roboto', sans-serif;
  color: var(--text-dark);
  background-color: var(--section-bg-light);
}

/* Navbar updated to blue and white gradient theme */
.navbar {
  background: linear-gradient(90deg, #001f3f 0%, #004080 100%);
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  padding-top: 10px;
  padding-bottom: 10px;
}

.navbar-brand img {
  height: 50px;
  line-height: 50px;
}

.nav-link {
  color: #ffffff !important;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.9rem;
  transition: all 0.3s;
  margin: 0 5px;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 3px;
  bottom: -5px;
  left: 0;
  background-color: var(--secondary-yellow);
  transition: width 0.3s;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-link:hover, .nav-link.active {
  color: var(--secondary-yellow) !important;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.6)), url('../images/hero_bg.png') center/100% 100% no-repeat;
  color: var(--text-dark);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: var(--primary-blue);
  transform: rotate(-15deg);
  z-index: 0;
  opacity: 0.1;
  border-radius: 100px;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  color: var(--primary-blue);
  font-weight: 800;
  font-size: 4rem;
  margin-bottom: 20px;
  line-height: 1.1;
}

.hero-title span {
  color: var(--primary-pink);
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 30px;
  color: #636e72;
}

.btn-custom {
  background-color: var(--primary-pink);
  color: white;
  font-weight: 700;
  padding: 12px 35px;
  border-radius: 5px;
  border: none;
  transition: all 0.3s;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-custom:hover {
  background-color: var(--primary-blue);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(42, 178, 228, 0.3);
}

.btn-outline-custom {
  border: 2px solid var(--primary-blue);
  color: var(--primary-blue);
  font-weight: 700;
  padding: 10px 35px;
  border-radius: 5px;
  transition: all 0.3s;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-outline-custom:hover {
  background-color: var(--primary-blue);
  color: white;
}

/* Sections */
.section-padding {
  padding: 90px 0;
}

.section-title {
  color: var(--text-dark);
  font-weight: 800;
  margin-bottom: 60px;
  text-transform: uppercase;
  text-align: center;
  position: relative;
}

.section-title::after {
  content: '';
  width: 60px;
  height: 4px;
  background-color: var(--primary-yellow);
  display: block;
  margin: 15px auto 0;
  border-radius: 2px;
}

.section-title span {
  color: var(--primary-blue);
}

/* Cards */
.bg-white-section {
  background-color: white;
}

.course-card {
  border: 1px solid #eee;
  border-radius: 10px;
  background: white;
  transition: all 0.3s ease;
  height: 100%;
}

.course-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(42, 178, 228, 0.35);
  border-color: var(--primary-blue);
}

.course-card .card-header {
  background-color: transparent;
  color: var(--text-dark);
  font-weight: 800;
  font-size: 1.4rem;
  border-bottom: 3px solid var(--primary-pink);
  padding: 20px;
}

.contact-info-card {
  background-color: white;
  color: var(--text-dark);
  padding: 40px;
  border-radius: 10px;
  border-top: 5px solid var(--primary-blue);
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.contact-info-card a {
  color: var(--primary-pink);
  text-decoration: none;
}

/* Faculties */
.faculty-card {
  background: white;
  border: none;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
  transition: 0.3s;
}
.faculty-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

footer {
  background-color: var(--text-dark);
  color: white;
  padding: 50px 0 20px;
}

/* Gallery Carousel */
.media-carousel .carousel-inner {
  border-radius: 15px;
  box-shadow: 0 15px 35px rgba(0,0,0,0.1);
  background: #000;
}

.media-carousel img {
  object-fit: cover;
  height: 600px;
  width: 100%;
  opacity: 0.9;
}

.ratio-video {
  height: 600px;
}

@media (max-width: 768px) {
  .media-carousel img, .ratio-video {
    height: 300px;
  }
}

/* Custom Glow Hover Effects & Transitions */
.transition-hover {
  transition: all 0.3s ease-in-out;
}
.transition-hover:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.1) !important;
}

.card-glow-hover {
  transition: all 0.4s ease-in-out;
}
.card-glow-hover:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(230, 0, 126, 0.3) !important;
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  width: 65px;
  height: 65px;
  bottom: 30px;
  right: 30px;
  background-color: #25d366;
  color: #FFF;
  border-radius: 50px;
  text-align: center;
  font-size: 38px;
  box-shadow: 2px 2px 15px rgba(0,0,0,0.3);
  z-index: 1000;
  animation: pulse-wa 2s infinite;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.whatsapp-float:hover {
  background-color: #128C7E;
  color: #FFF;
  transform: scale(1.1);
}
@keyframes pulse-wa {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Floating Instagram Button */
.instagram-float {
  position: fixed;
  width: 50px;
  height: 50px;
  bottom: 170px;
  right: 37px;
  background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%,#d6249f 60%,#285AEB 90%);
  color: #FFF;
  border-radius: 50px;
  text-align: center;
  font-size: 28px;
  box-shadow: 2px 2px 15px rgba(0,0,0,0.3);
  z-index: 1000;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.instagram-float:hover {
  color: #FFF;
  transform: scale(1.1);
}

/* Floating YouTube Button */
.youtube-float {
  position: fixed;
  width: 50px;
  height: 50px;
  bottom: 230px;
  right: 37px;
  background-color: #FF0000;
  color: #FFF;
  border-radius: 50px;
  text-align: center;
  font-size: 24px;
  box-shadow: 2px 2px 15px rgba(0,0,0,0.3);
  z-index: 1000;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.youtube-float:hover {
  color: #FFF;
  transform: scale(1.1);
}

/* Accordion Specific CSS */
.accordion-button:not(.collapsed) {
  color: white;
  background-color: var(--primary-pink);
}
.accordion-button:focus {
  border-color: var(--primary-pink);
  box-shadow: 0 0 0 0.25rem rgba(230, 0, 126, 0.25);
}
.accordion-button::after {
  filter: brightness(0) invert(1);
}
.accordion-button.collapsed::after {
  filter: none;
}

/* Glowing Demo Badge */
.glowing-demo-badge {
  box-shadow: 0 0 0 0 rgba(230, 0, 126, 0.7);
  animation: pulse-pink 2s infinite;
}

@keyframes pulse-pink {
  0% { transform: scale(0.98); box-shadow: 0 0 0 0 rgba(230, 0, 126, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 15px rgba(230, 0, 126, 0); }
  100% { transform: scale(0.98); box-shadow: 0 0 0 0 rgba(230, 0, 126, 0); }
}

/* Go To Top Button */
#scrollTopBtn {
  position: fixed;
  bottom: 110px;
  right: 37px;
  width: 50px;
  height: 50px;
  background-color: var(--primary-blue);
  color: #FFF;
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  z-index: 999;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.8;
}
#scrollTopBtn:hover {
  background-color: var(--secondary-yellow);
  color: var(--text-dark);
  opacity: 1;
  transform: translateY(-3px);
}