/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
}

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

/* Navigation */
.navbar {
  background: #fff;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  padding: 1rem 2rem;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo h1 {
  color: #2c3e50;
  font-size: 1.8rem;
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li a {
  color: #2c3e50;
  text-decoration: none;
  padding: 0.5rem 1rem;
  transition: color 0.3s ease;
}

.nav-links li a:hover {
  color: #3498db;
}

/* Hero Section */
.hero {
  height: 100vh;
  position: relative;
  overflow: hidden;
}

.slideshow {
  width: 100%;
  height: 100%;
  position: relative;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
  background-position: center;
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(44, 62, 80, 0.7);
}

.slide.active {
  opacity: 1;
}

.hero-content {
  max-width: 800px;
  padding: 0 20px;
  position: relative;
  z-index: 1;
  color: #fff;
  text-align: center;
}

.slide-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.3);
  color: white;
  padding: 1rem;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  z-index: 2;
  transition: background 0.3s ease;
}

.slide-arrow:hover {
  background: rgba(255, 255, 255, 0.5);
}

.prev-slide {
  left: 20px;
}

.next-slide {
  right: 20px;
}

.slide-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 2;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: background 0.3s ease;
}

.dot.active {
  background: white;
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

.quote {
  font-size: 1.5rem;
  font-style: italic;
  margin-bottom: 2rem;
}

.cta-button {
  display: inline-block;
  padding: 1rem 2rem;
  background: #3498db;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  transition: background 0.3s ease;
}

.cta-button:hover {
  background: #2980b9;
}

/* About Section */
.about {
  padding: 5rem 0;
  background: #f9f9f9;
}

.about h2 {
  text-align: center;
  margin-bottom: 2rem;
  color: #2c3e50;
}

/* Staff Section */
.staff {
  padding: 5rem 0;
}

.staff h2 {
  text-align: center;
  margin-bottom: 3rem;
  color: #2c3e50;
}

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

.staff-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.staff-card:hover {
  transform: translateY(-5px);
}

.staff-image {
  height: 200px;
  overflow: hidden;
}

.staff-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.staff-card h3 {
  padding: 1rem;
  color: #2c3e50;
}

.staff-card .role {
  color: #3498db;
  padding: 0 1rem;
}

.staff-card p {
  padding: 1rem;
  font-size: 0.9rem;
}

/* Contact Section */
.contact {
  padding: 5rem 0;
  background: #f9f9f9;
}

.contact h2 {
  text-align: center;
  margin-bottom: 3rem;
  color: #2c3e50;
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.social-links {
  text-align: center;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  color: #3498db;
  text-decoration: none;
  font-size: 1.2rem;
  margin: 1rem 0;
  padding: 0.5rem 1rem;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.social-links a:hover {
  background-color: #f0f0f0;
}

.zalo-icon {
  width: 24px;
  height: 24px;
  margin-right: 0.5rem;
}

.zalo-link {
  background-color: #0068ff;
  color: white !important;
  border-radius: 25px;
  padding: 0.7rem 1.5rem !important;
}

.zalo-link:hover {
  background-color: #0056d6 !important;
}

.contact-form form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  padding: 0.8rem;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-size: 1rem;
}

.contact-form textarea {
  height: 150px;
  resize: vertical;
}

/* Footer */
footer {
  background: #2c3e50;
  color: #fff;
  padding: 3rem 0 1rem;
}

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

.footer-logo h3 {
  margin-bottom: 1rem;
}

.footer-links h4 {
  margin-bottom: 1rem;
}

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

.footer-links a {
  color: #fff;
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.video-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.video-description {
  font-size: 1.2rem;
  color: #333;
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 10px;
  transition: transform 0.3s ease;
}

.video-description:hover {
  transform: translateY(-5px);
}
/* Responsive Design */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    padding: 1rem;
  }

  .nav-links {
    margin-top: 1rem;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  .quote {
    font-size: 1.2rem;
  }
}

/* Activities Section */
.activities {
  padding: 5rem 0;
  background: #fff;
}

.activities h2 {
  text-align: center;
  margin-bottom: 3rem;
  color: #2c3e50;
}

.activities-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.activities-text h3 {
  color: #2c3e50;
  margin-bottom: 2rem;
}

.activities-list {
  list-style: none;
}

.activities-list li {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: #f8f9fa;
  border-radius: 10px;
  transition: transform 0.3s ease;
}

.activities-list li:hover {
  transform: translateY(-5px);
}

.activities-list i {
  font-size: 2rem;
  color: #3498db;
  margin-bottom: 1rem;
}

.activities-list h4 {
  color: #2c3e50;
  margin-bottom: 0.5rem;
}

.activities-feed h3 {
  color: #2c3e50;
  margin-bottom: 2rem;
}

/* News Section */
.news {
  padding: 5rem 0;
  background: #f9f9f9;
}

.news h2 {
  text-align: center;
  margin-bottom: 3rem;
  color: #2c3e50;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.news-item {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.news-item:hover {
  transform: translateY(-5px);
}

.news-item h3 {
  padding: 1rem;
  color: #2c3e50;
  background: #fff;
  margin: 0;
  font-size: 1.2rem;
  border-bottom: 1px solid #eee;
}

.news-button {
  grid-column: 1 / -1;
  text-align: center;
  margin-top: 2rem;
}

/* Responsive adjustments for news items */
@media (max-width: 992px) {
  .news-grid {
    grid-template-columns: 1fr;
    padding: 0 1rem;
  }

  .news-item {
    max-width: 600px;
    margin: 0 auto;
  }

  .fb-post {
    width: 100% !important;
  }
}