* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #2563eb;
  --secondary: #1e40af;
  --accent: #f59e0b;
  --success: #10b981;
  --danger: #ef4444;
  --light: #f3f4f6;
  --dark: #1f2937;
  --text: #374151;
  --border: #e5e7eb;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background-color: #fff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navbar */
.navbar {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  flex: 0 0 auto;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo {
  height: 50px;
  width: auto;
  border-radius: 8px;
}

.brand-text h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
}

.navbar-menu {
  flex: 1;
  margin-left: 40px;
}

.menu-main {
  list-style: none;
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}

.menu-item {
  position: relative;
}

.menu-link {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  display: block;
  padding: 8px 0;
  position: relative;
}

.menu-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width 0.3s ease;
}

.menu-link:hover::after {
  width: 100%;
}

.menu-item.has-dropdown > .menu-link::before {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  margin-left: 5px;
  font-size: 0.8rem;
}

.submenu {
  position: absolute;
  top: 100%;
  left: 0;
  background: white;
  list-style: none;
  padding: 10px 0;
  min-width: 200px;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  margin-top: 10px;
}

.menu-item:hover .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.submenu li a {
  display: block;
  padding: 12px 20px;
  color: var(--text);
  text-decoration: none;
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
}

.submenu li a:hover {
  background-color: var(--light);
  color: var(--primary);
  border-left-color: var(--primary);
  padding-left: 25px;
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.navbar-toggle span {
  width: 25px;
  height: 3px;
  background-color: white;
  margin: 5px 0;
  transition: 0.3s;
  border-radius: 2px;
}

/* Hero Slider */
.hero-slider {
  position: relative;
  height: 500px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.swiper-container {
  width: 100%;
  height: 100%;
}

.swiper-slide {
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.swiper-slide::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
}

.slide-content {
  position: relative;
  text-align: center;
  color: white;
  z-index: 10;
}

.slide-content h2 {
  font-size: 3rem;
  margin-bottom: 20px;
  font-weight: 700;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Stats Section */
.stats-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--light) 0%, #ffffff 100%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.stat-card {
  background: white;
  padding: 40px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border-top: 4px solid var(--primary);
}

.stat-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
}

.stat-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 20px;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.stat-label {
  font-size: 1.1rem;
  color: var(--text);
  font-weight: 600;
}

/* Sections */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text);
  margin-top: 30px;
}

/* Departments Section */
.departments-section {
  padding: 80px 0;
  background: white;
}

.departments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.dept-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.dept-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
  border-color: var(--primary);
}

.dept-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: var(--light);
}

.dept-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.dept-card:hover .dept-image img {
  transform: scale(1.1);
}

.dept-content {
  padding: 25px;
}

.dept-content h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: var(--primary);
}

.dept-hod {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 15px;
}

.dept-content p {
  color: var(--text);
  margin-bottom: 15px;
  line-height: 1.6;
}

.btn-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
}

.btn-link:hover {
  color: var(--secondary);
  transform: translateX(5px);
}

/* Events Section */
.events-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--light) 0%, #ffffff 100%);
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.event-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.event-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.event-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: var(--light);
  position: relative;
}

.event-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.event-card:hover .event-image img {
  transform: scale(1.1);
}

.event-content {
  padding: 25px;
}

.event-date {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.event-content h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--dark);
}

.event-content p {
  color: var(--text);
  margin-bottom: 15px;
  line-height: 1.6;
}

/* Testimonials Section */
.testimonials-section {
  padding: 80px 0;
  background: white;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.testimonial-card {
  background: linear-gradient(135deg, var(--light) 0%, white 100%);
  padding: 30px;
  border-radius: 12px;
  border-left: 4px solid var(--primary);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.testimonial-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.testimonial-header {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
  align-items: center;
}

.testimonial-photo {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary);
}

.testimonial-header h4 {
  font-size: 1rem;
  color: var(--dark);
  margin-bottom: 3px;
}

.testimonial-header p {
  font-size: 0.85rem;
  color: var(--text);
}

.stars {
  color: var(--accent);
  margin-bottom: 15px;
}

.stars i {
  font-size: 0.9rem;
  margin-right: 2px;
}

.testimonial-text {
  color: var(--text);
  font-style: italic;
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

/* Footer */
.footer {
  background: linear-gradient(135deg, var(--dark) 0%, #111827 100%);
  color: #d1d5db;
  padding: 60px 0 20px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: white;
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-col ul li a:hover {
  color: var(--primary);
}

.social-links {
  display: flex;
  gap: 15px;
}

.social-links a {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background: var(--primary);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
}

/* WhatsApp Button */
.whatsapp-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25d366;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  transition: all 0.3s ease;
  z-index: 999;
  animation: pulse 2s infinite;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(37, 211, 102, 0.5);
  animation: none;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--primary);
    flex-direction: column;
    gap: 0;
    margin-left: 0;
    border-radius: 0 0 12px 12px;
  }

  .navbar-menu.active {
    display: flex;
  }

  .menu-main {
    flex-direction: column;
    gap: 0;
  }

  .menu-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .menu-link {
    padding: 15px 20px;
  }

  .submenu {
    position: static;
    opacity: 0;
    visibility: hidden;
    max-height: 0;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.1);
  }

  .submenu.active {
    opacity: 1;
    visibility: visible;
    max-height: 500px;
  }

  .submenu li a {
    padding: 12px 40px;
  }

  .navbar-toggle {
    display: flex;
  }

  .navbar-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
  }

  .navbar-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .navbar-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
  }

  .slide-content h2 {
    font-size: 1.8rem;
  }

  .slide-content p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .hero-slider {
    height: 300px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .stat-card {
    padding: 25px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .whatsapp-btn {
    width: 50px;
    height: 50px;
    font-size: 24px;
    bottom: 20px;
    right: 20px;
  }
}

@media (max-width: 480px) {
  .navbar-brand {
    flex: 0 0 auto;
  }

  .logo {
    height: 40px;
  }

  .brand-text h1 {
    font-size: 1.1rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .departments-grid,
  .events-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }
}