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

:root {
  --primary: #1e3a8a;
  --primary-dark: #1e40af;
  --secondary: #3b82f6;
  --accent: #f59e0b;
  --background: #ffffff;
  --surface: #f8fafc;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--background);
}

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

/* Header */
.header {
  background-color: var(--primary);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
}

.nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
  padding: 0.5rem 0;
}

.nav a:hover,
.nav a.active {
  color: var(--accent);
}

.nav a.chatbot-link {
  background-color: var(--accent);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 6px;
}

.nav a.chatbot-link:hover {
  background-color: #d97706;
  color: white;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 4rem 0;
  text-align: center;
}

.hero-content h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.hero-content p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
  display: inline-block;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--accent);
  color: white;
}

.btn-primary:hover {
  background-color: #d97706;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: white;
  color: var(--primary);
}

.btn-secondary:hover {
  background-color: var(--surface);
  transform: translateY(-2px);
}

/* Gallery Carousel */
.gallery-section {
  padding: 4rem 0;
  background-color: var(--surface);
}

.section-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2rem;
  color: var(--primary);
  font-weight: 700;
}

.gallery-carousel {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.carousel-container {
  position: relative;
  width: 100%;
  height: 500px;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.carousel-slide {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.carousel-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: white;
  padding: 2rem;
  font-size: 1.25rem;
  font-weight: 600;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--primary);
  border: none;
  padding: 1rem;
  cursor: pointer;
  font-size: 1.5rem;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  z-index: 10;
}

.carousel-btn:hover {
  background-color: white;
  transform: translateY(-50%) scale(1.1);
}

.carousel-btn.prev {
  left: 1rem;
}

.carousel-btn.next {
  right: 1rem;
}

.carousel-dots {
  text-align: center;
  margin-top: 1rem;
}

.dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--border);
  margin: 0 5px;
  cursor: pointer;
  transition: all 0.3s;
}

.dot.active {
  background-color: var(--primary);
  width: 30px;
  border-radius: 6px;
}

/* Stats Section */
.stats-section {
  padding: 4rem 0;
  background-color: var(--primary);
  color: white;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.stat-card {
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1.25rem;
  opacity: 0.9;
}

/* Features Section */
.features-section {
  padding: 4rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-card {
  background-color: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: all 0.3s;
  text-decoration: none;
  color: var(--text);
  border: 2px solid transparent;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
  border-color: var(--primary);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.feature-card p {
  color: var(--text-muted);
  line-height: 1.6;
}

/* Page Header */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 3rem 0;
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.page-header p {
  font-size: 1.25rem;
  opacity: 0.9;
}

/* Content Section */
.content-section {
  padding: 4rem 0;
}

/* Faculty Grid */
.faculty-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.faculty-card {
  background-color: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s;
}

.faculty-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.faculty-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.faculty-info {
  padding: 1.5rem;
}

.faculty-info h3 {
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.faculty-title {
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.faculty-dept,
.faculty-specialty {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.faculty-email,
.faculty-phone {
  color: var(--text);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

/* Announcements */
.announcements-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.announcement-card {
  background-color: white;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border-left: 4px solid var(--primary);
  position: relative;
}

.announcement-card.pinned {
  background-color: #fffbeb;
  border-left-color: var(--accent);
}

.announcement-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.announcement-badge.academic {
  background-color: #dbeafe;
  color: #1e40af;
}

.announcement-badge.event {
  background-color: #dcfce7;
  color: #166534;
}

.announcement-badge.administrative {
  background-color: #fef3c7;
  color: #92400e;
}

.announcement-pin {
  position: absolute;
  top: 1rem;
  right: 1rem;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
}

.announcement-card h3 {
  color: var(--primary);
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
}

.announcement-card p {
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.announcement-meta {
  display: flex;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Chatbot */
.chatbot-section {
  padding: 2rem 0 4rem;
}

.chatbot-container {
  max-width: 800px;
  margin: 0 auto;
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.chatbot-messages {
  height: 500px;
  overflow-y: auto;
  padding: 2rem;
  background-color: var(--surface);
}

.message {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.bot-message .message-avatar {
  background-color: var(--primary);
}

.user-message {
  flex-direction: row-reverse;
}

.user-message .message-avatar {
  background-color: var(--accent);
}

.message-content {
  background-color: white;
  padding: 1rem;
  border-radius: 12px;
  max-width: 70%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.user-message .message-content {
  background-color: var(--primary);
  color: white;
}

.message-time {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.user-message .message-time {
  color: rgba(255, 255, 255, 0.7);
}

.chatbot-input-container {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background-color: white;
  border-top: 1px solid var(--border);
}

.chatbot-input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.chatbot-input:focus {
  outline: none;
  border-color: var(--primary);
}

.chatbot-send-btn {
  padding: 0.75rem 2rem;
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.chatbot-send-btn:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
}

.chatbot-suggestions {
  padding: 1rem 1.5rem;
  background-color: var(--surface);
  border-top: 1px solid var(--border);
}

.chatbot-suggestions p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.chatbot-suggestions button {
  margin: 0.25rem;
  padding: 0.5rem 1rem;
  background-color: white;
  border: 1px solid var(--border);
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.3s;
}

.chatbot-suggestions button:hover {
  background-color: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* About Page */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
  align-items: center;
}

.about-image img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.about-text h2 {
  color: var(--primary);
  margin-bottom: 1rem;
  font-size: 2rem;
}

.about-text p {
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.mission-vision {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.mv-card {
  background-color: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border-top: 4px solid var(--primary);
}

.mv-card h3 {
  color: var(--primary);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.mv-card p {
  color: var(--text);
  line-height: 1.8;
}

.values-section h2 {
  color: var(--primary);
  text-align: center;
  margin-bottom: 2rem;
  font-size: 2rem;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.value-card {
  background-color: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: all 0.3s;
}

.value-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.value-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.value-card h4 {
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.value-card p {
  color: var(--text-muted);
  line-height: 1.6;
}

/* Contact Page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info h2 {
  color: var(--primary);
  margin-bottom: 2rem;
  font-size: 2rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.contact-item h4 {
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.contact-item p {
  color: var(--text);
  line-height: 1.6;
}

.contact-form-container {
  background-color: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.contact-form-container h2 {
  color: var(--primary);
  margin-bottom: 1.5rem;
  font-size: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  color: var(--text);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  resize: vertical;
}

/* Footer */
.footer {
  background-color: var(--primary);
  color: white;
  padding: 3rem 0 1rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.footer-section p {
  opacity: 0.9;
  line-height: 1.6;
}

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

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: white;
  text-decoration: none;
  opacity: 0.9;
  transition: opacity 0.3s;
}

.footer-section ul li a:hover {
  opacity: 1;
  color: var(--accent);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }

  .nav {
    justify-content: center;
  }

  .hero-content h2 {
    font-size: 2rem;
  }

  .carousel-container {
    height: 300px;
  }

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

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

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

  .about-content {
    grid-template-columns: 1fr;
  }

  .mission-vision {
    grid-template-columns: 1fr;
  }

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

  .message-content {
    max-width: 85%;
  }
}