body {
  font-family: 'Hind Siliguri', sans-serif;
  font-size: 18px;
  color: #222;
  line-height: 1.7;
}

h1, h2, h3, p, li {
  font-family: 'Hind Siliguri', sans-serif;
  font-weight: 700;
}

header {
  max-width: 900px;
  margin: 40px auto 60px;
  padding: 0 20px;
  text-align: center;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #ffffff;
  border-bottom: 2px solid #e0e0e0;
}

header img {
  max-width: 150px;
  margin: 0 auto 15px;
  display: block;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #002c6d; /* Bootstrap primary blue */
}

header p {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 30px;
  color: #000000;
  line-height: 1.4;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
#image-carousel img {
    height: auto;
    max-height: 90vh;
    object-fit: cover;
    border: none;
}

/* Cyan minimalist carousel control icons
.carousel-control-prev-icon,
.carousel-control-next-icon {
    background-color: cyan;
    background-size: 100% 1000%;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 50%;
    width: 90px;
    height: 90px;
} */

/* Optional hover effect */
.carousel-control-prev:hover .carousel-control-prev-icon,
.carousel-control-next:hover .carousel-control-next-icon {
    background-color: #00acc1; /* Slightly darker cyan */
}


nav .nav-ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  gap: 25px;
  font-weight: 600;
}

nav .nav-ul li a {
  text-decoration: none;
  color: #ffffff; /* Changed from #ffffff to ensure visibility */
  font-size: 1rem;
  padding: 8px 14px;
  border-radius: 30px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

nav .nav-ul li a:hover,
nav .nav-ul li a:focus {
  background-color: #0d6efd;
  color: rgb(255, 217, 0);
  outline: none;
  box-shadow: 0 3px 8px rgb(13 110 253 / 0.4);
}

/* Center navbar toggler on mobile and tablet */
.navbar .centered-toggler {
  margin: 0 auto;
}

/* Ensure navbar background for visibility */
.navbar-light {
  background-color: #f8f9fa; /* Bootstrap's bg-light */
}

/* Responsive tweak for smaller screens */
@media (max-width: 480px) {
  header h1 {
    font-size: 1.8rem;
  }
  nav .nav-ul {
    flex-direction: column;
    gap: 15px;
  }
}

@media (max-width: 767.98px) {
  .navbar .navbar-collapse {
    justify-content: center;
  }
  .navbar .nav-ul {
    text-align: center;
  }
}

  #image-carousel {
    max-width: 1200px; /* বা আপনার ইচ্ছেমতো: যেমন 992px, 1140px */
    margin: 0 auto;
  }

  #image-carousel img {
    height: 500px; /* প্রয়োজন অনুসারে কম-বেশি করুন */
    object-fit: cover;
  }

  @media (max-width: 991.98px) {
    #image-carousel img {
      height: 350px;
    }
  }

  @media (max-width: 767.98px) {
    #image-carousel img {
      height: 250px;
    }
  }

  .carousel-control-prev-icon,
  .carousel-control-next-icon {
    background-color: rgba(0, 0, 0, 0.6) !important; /* কালো রঙ */
    border-radius: 50% !important;
    background-size: 70% 70% !important;
  }

  .carousel-control-prev-icon:hover,
  .carousel-control-next-icon:hover {
    background-color: rgba(52, 18, 240, 0.9) !important;
  }



#about {
  max-width: 750px;
  margin: 50px auto;
  padding: 0 20px;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #333;
  line-height: 1.7;
}

#about h2 {
  font-size: 2rem;
  color: #0d6efd; /* Bootstrap primary blue */
  font-weight: 700;
  text-align: center;
  margin-bottom: 25px;
  letter-spacing: 1.2px;
}

#about p {
  font-size: 1.125rem;
  text-align: justify;
  color: #444;
  white-space: pre-line;
  word-spacing: 0.1em;
  font-weight: 500;
  background-color: #f9f9f9;
  padding: 18px 25px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgb(0 0 0 / 0.05);
}

#get-involved {
  max-width: 600px;
  margin: 50px auto 80px;
  padding: 0 20px;
  text-align: center;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #222;
}

#get-involved h2 {
  font-size: 2rem;
  color: #0d6efd;
  font-weight: 700;
  margin-bottom: 30px;
}

#get-involved button {
  background-color: #0d6efd;
  color: white;
  border: none;
  padding: 14px 40px;
  font-size: 1.2rem;
  font-weight: 600;
  border-radius: 40px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(13,110,253,0.4);
  transition: background-color 0.3s ease, transform 0.2s ease;
}

#get-involved button:hover {
  background-color: #0a58ca;
  transform: scale(1.05);
}

#get-involved button:focus {
  outline: none;
  box-shadow: 0 0 0 4px rgba(13,110,253,0.5);
}

h1 {
  margin: 0;
  color: cyan;
}

p {
  font-size: 1.2em;
}



section {
  padding: 40px;
  background: white;
  margin: 20px auto;
  width: 100%;
  border-radius: 10px;
  box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}


@media (max-width: 991.98px) {
  .navbar-toggler {
    margin-left: auto !important;
    margin-right: auto !important;
  }

  /* Collapse container center alignment */
  .navbar-collapse {
    text-align: center;
  }

  /* Nav item এবং লিংক সেন্টার ও মিনিমাল লুক */
  .navbar-nav {
    flex-direction: column !important;
    align-items: center !important;
    gap: 0.5rem;
    
   
  }

  .navbar-nav .nav-item {
    width: 100%;
    margin-top: 5px;
  }

  .navbar-nav .nav-link {
    display: block;
    width: 100%;
    padding: 0.75rem;
    text-align: center;
    color: #fff;
    background-color: #0d6efd;
    border-radius: 8px;
    font-weight: 600;
    transition: 0.3s;
  }

  .navbar-nav .nav-link:hover {
    background-color: #0b5ed7;
    color: #fff;
  }
}

#programs h2 {
    font-size: 2rem;
    color: #0d6efd; /* Bootstrap primary blue */
    font-weight: 700;
    text-align: center;
    margin-bottom: 25px;
    letter-spacing: 1.2px;
  }
.programs-container {
  background-color: #f9f9f9;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgb(0 0 0 / 0.1);
  padding: 25px 30px;
}

.program-ul li.program-item {
  padding: 12px 18px;
  margin-bottom: 12px;
  border-left: 4px solid #0d6efd;
  background-color: #fff;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  font-size: 1.1rem;
  line-height: 1.4;
  color: #444;
  position: relative;
}

.program-ul li.program-item:hover,
.program-ul li.program-item:focus {
  text-decoration: none;
  background-color: #0d6efd;
  border-left-color: #053e92;
  color: #fff;
  box-shadow: 0 3px 8px rgb(13 110 253 / 0.3);
  outline: none;
}
.section-heading-box {
    background: #e0f7fa; /* Cyan-ish light background */
    border: 3px solid #00bcd4; /* Cyan border */
    border-radius: 12px;
    padding: 20px 10px;
    max-width: 500px;
    margin: 0 auto 2rem auto;
    box-shadow: 0 4px 10px rgba(0, 188, 212, 0.1);
    
}


.section-title {
    font-family: 'Hind Siliguri', sans-serif;
    font-weight:900;
    font-size: 2rem;
    color: #007c91;
    margin: 0;
}

.popup-content {
  display: none;
  margin-top: 10px;
  background: #eef5ff;
  padding: 10px;
  border-left: 3px solid #0d6efd;
  border-radius: 5px;
  color: #222;
  font-size: 0.95rem;
}


button {
  background: #ff9900;
  color: white;
  border: none;
  padding: 10px 20px;
  font-size: 1.2em;
  cursor: pointer;
  border-radius: 5px;
}

button:hover {
  background: #5dc3dd;
}

.nav-ul li {
  padding: 15px;
  margin: auto;
  margin-left: 20px;
  background-color: #007BFF;
  color: white;
  border-radius: 10px;
}

.program-ul li {
  list-style: none;
  margin-left: 0%;
}

.program-ul li:hover {
  text-decoration: underline;
  cursor: pointer;
  color: rgb(255, 255, 255);
}

#gallery{
  font-size: 2rem;
  color: #0d6efd; /* Bootstrap primary blue */
  font-weight:bold !important;
  text-align: center;
  margin-bottom: 25px;
  letter-spacing: 1.2px;
}
 

.gallery-card {
    border: 5px solid #0d47a1;
    padding: 10px;
    border-radius: 12px;
    background: linear-gradient(to bottom right, #e0f7fa, #ffffff);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.gallery-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.gallery-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 6px;
}

.img-caption {
    margin-top: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    color: #333;
    background-color: #f1f1f1;
    padding: 8px;
    border-radius: 8px;
}

.img-caption {
    margin-top: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    color: #333;
    background-color: #f1f1f1;
    padding: 8px;
    border-radius: 8px;
}

#contact {
  max-width: 700px;
  margin: 60px auto 80px;
  padding: 0 20px;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #333;
  text-align: center;
}

#contact h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #0d6efd; /* subtle blue */
  letter-spacing: 1.1px;
}

#contact h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: #555;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}

.social-icons a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: #444;
  font-weight: 600;
  padding: 10px 16px;
  border: 1.8px solid transparent;
  border-radius: 28px;
  transition: color 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
  font-size: 1.1rem;
  min-width: 140px;
  justify-content: center;
}

.social-icons a i {
  font-size: 1.3rem;
  color: #0d6efd;
  transition: color 0.3s ease;
}

.social-icons a:hover {
  color: #0d6efd;
  border-color: #0d6efd;
  background-color: #e6f0ff;
}

.social-icons a:hover i {
  color: #0a58ca;
}

@media (max-width: 480px) {
  .social-icons {
    gap: 15px;
  }
  .social-icons a {
    min-width: 100%;
  }
}

.under-dev-section {
  font-family: 'Hind Siliguri', sans-serif;
  background-color: #f4f6f9;
  padding: 60px 20px;
  text-align: center;
  border-top: 4px solid #0d6efd;
}

.under-dev-section .dev-icon {
  font-size: 60px;
  color: #0d6efd;
  margin-bottom: 20px;
}

.under-dev-section .dev-heading {
  font-size: 32px;
  margin-bottom: 15px;
  color: #333;
}

.under-dev-section .dev-description {
  font-size: 18px;
  margin-bottom: 25px;
  color: #555;
}

.under-dev-section .dev-info {
  margin-bottom: 20px;
  font-size: 17px;
  color: #444;
}

.under-dev-section .info-icon {
  color: #0d6efd;
  margin-right: 6px;
}

.under-dev-section .dev-contact {
  color: #0d6efd;
  text-decoration: none;
}

.under-dev-section .copy-button {
  padding: 10px 20px;
  font-size: 16px;
  background-color: #0d6efd;
  border: none;
  border-radius: 5px;
  color: white;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.under-dev-section .copy-button:hover {
  background-color: #084298;
}

footer h5 {
    font-size: 1.1rem;
    font-weight: 600;
}

footer a {
    transition: color 0.3s ease;
}

footer a:hover {
    color: #ffc107; /* Bootstrap warning color */
}

footer p, footer li {
    font-size: 0.95rem;
}