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

:root {
  --primary-blue: #0052CC;
  --dark-blue: #001F5C;
  --light-blue: #E8F0FF;
  --sky-blue: #D4E4FF;
  --accent-orange: #FF8C42;
  --text-dark: #001F5C;
  --text-light: #666;
  --white: #FFFFFF;
  --spacing: 8px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background: linear-gradient(135deg, #E8F0FF 0%, #F5FAFF 100%);
}

.navbar {
  background: var(--white);
  padding: 1rem 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-blue);
}

a.nav-link {
  text-decoration: none;
  color: var(--text-dark) !important;
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--primary-blue);
}

.login-btn {
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  padding: 0.6rem 1.5rem;
  border-radius: 25px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

.login-btn:hover {
  background: var(--dark-blue);
}

.search-section {
  background: linear-gradient(180deg, rgba(232, 240, 255, 0.5) 0%, rgba(212, 228, 255, 0.3) 100%);
  padding: 1.5rem;
  text-align: center;
}

.search-container {
  max-width: 400px;
  margin: 0 auto;
  display: flex;
  background: var(--white);
  border-radius: 25px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 82, 204, 0.1);
}

.search-container input {
  flex: 1;
  border: none;
  padding: 0.8rem 1.2rem;
  outline: none;
  font-size: 0.9rem;
}

.search-btn {
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  padding: 0 1.2rem;
  cursor: pointer;
  font-size: 1.1rem;
}

.hero {
  text-align: center;
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  background:
    radial-gradient(circle at 20% 50%, rgba(232, 240, 255, 0.4) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(212, 228, 255, 0.3) 0%, transparent 50%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.1) 25%, transparent 25%),
    linear-gradient(225deg, rgba(255, 255, 255, 0.1) 25%, transparent 25%),
    linear-gradient(315deg, rgba(255, 255, 255, 0.1) 25%, transparent 25%),
    linear-gradient(45deg, rgba(255, 255, 255, 0.1) 25%, transparent 25%);
  background-position: 0 0, 0 0, 0 0, 10px 0, 10px 10px, 0 10px;
  background-size: 100% 100%, 100% 100%, 20px 20px, 20px 20px, 20px 20px, 20px 20px;
  background-attachment: fixed;
}

.hero h1 {
  font-size: 3.5rem;
  color: var(--primary-blue);
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.subtitle {
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

.course-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.tab {
  background: transparent;
  border: 2px solid var(--primary-blue);
  color: var(--primary-blue);
  padding: 0.6rem 1.2rem;
  border-radius: 25px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s;
}

.tab:hover {
  background: var(--primary-blue);
  color: var(--white);
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
  transition: transform 0.3s;
}

.social-icon.facebook {
  background: #3B5998;
}

.social-icon.youtube {
  background: #FF0000;
}

.social-icon:hover {
  transform: scale(1.1);
}

.hero-heading {
  font-size: 2.2rem;
  color: var(--text-dark);
  margin: 2rem 0;
  font-weight: 700;
}

.banner-card {
  background: linear-gradient(135deg, #1a3a52 0%, #2d5a7b 100%);
  border-radius: 15px;
  padding: 2rem;
  margin: 2rem 0;
  position: relative;
  min-height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(0, 82, 204, 0.2);
}

.banner-content {
  color: var(--white);
  text-align: center;
}

.bengali-text {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.tutorial-badge {
  display: inline-block;
  background: #FF4444;
  color: var(--white);
  padding: 0.4rem 1rem;
  border-radius: 5px;
  font-size: 0.8rem;
  font-weight: 700;
}

.carousel-indicators {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.dot {
  font-size: 2rem;
  color: #CCC;
  cursor: pointer;
  transition: color 0.3s;
}

.dot.active {
  color: var(--primary-blue);
}



.services {
  padding: 4rem 2rem;
  background: var(--white);
  border-radius: 15px;
}

.services h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
  color: var(--text-dark);
}

.services-grid {
  display: grid;
  max-width: 1200px;
  margin: 2rem auto;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.service-card {
  background: linear-gradient(135deg, rgba(232, 240, 255, 0.8) 0%, rgba(212, 228, 255, 0.6) 100%);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 82, 204, 0.15);
}

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

.service-card h3 {
  color: var(--text-dark);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

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

.view-btn {
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  padding: 0.6rem 1.5rem;
  border-radius: 20px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.3s;
}

.view-btn:hover {
  background: var(--dark-blue);
}

.stat-section{
  background-color: var(--white);
}

.stats {
  padding: 3rem 2rem;
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
  color: var(--white);
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
  border-radius: 15px;
}

.stats h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
}

.stat-card {
  background: rgba(255, 255, 255, 0.15);
  padding: 2rem;
  border-radius: 10px;
  backdrop-filter: blur(10px);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.stat-card p {
  font-size: 1rem;
}

.courses {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.courses h2 {
  font-size: 2rem;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.courses-subtitle {
  color: var(--text-light);
  margin-bottom: 2rem;
}

.course-item {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 82, 204, 0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}

.course-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 82, 204, 0.2);
}

.course-image {
  width: 100%;
  height: 190px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  margin-bottom: 1rem;
}

.course-image.future-courses {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.course-image.basic-course {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.course-image.freehand-writing {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.course-item h3 {
  color: var(--text-dark);
  padding: 1rem;
  font-size: 1.1rem;
  margin: 0;
}

.course-stats {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0 1rem 1rem;
  color: var(--text-light);
  font-size: 0.9rem;
}

.view-all-btn {
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  padding: 0.8rem 2rem;
  border-radius: 25px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
  margin-top: 2rem;
}

.view-all-btn:hover {
  background: var(--dark-blue);
}

.package {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  padding: 3rem 2rem;
  max-width: 1200px;
  margin: 2rem auto;
  background: var(--white);
  border-radius: 15px;
}

.package-content h3 {
  font-size: 1.5rem;
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.package-content p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.order-btn {
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  padding: 0.8rem 2rem;
  border-radius: 25px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

.order-btn:hover {
  background: var(--dark-blue);
}

.package-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #e0e7ff 0%, #f3f4f6 100%);
  border-radius: 12px;
}

.reviews {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  background: linear-gradient(135deg, rgba(232, 240, 255, 0.5) 0%, rgba(212, 228, 255, 0.3) 100%);
  border-radius: 15px;
}

.reviews h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
  color: var(--text-dark);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.review-card {
  background: var(--white);
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 82, 204, 0.1);
}

.reviewer-info {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  align-items: center;
}

.reviewer-info img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.reviewer-info h4 {
  margin: 0;
  color: var(--text-dark);
  font-size: 1rem;
}

.reviewer-info p {
  margin: 0;
  color: var(--text-light);
  font-size: 0.85rem;
}

.rating {
  margin-bottom: 1rem;
}

.review-text {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

.team {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.team-member {
  background: var(--white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 82, 204, 0.1);
}

.team-member img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  margin-bottom: 1rem;
  object-fit: cover;
  border: 4px solid var(--primary-blue);
}

.team-member h3 {
  color: var(--primary-blue);
  margin: 1rem 0 0.5rem;
  font-size: 1.2rem;
}

.team-member p {
  color: var(--text-dark);
  font-weight: 600;
  margin: 0 0 1rem;
}

.member-detail {
  color: var(--text-light);
  font-size: 0.9rem;
  margin: 0.3rem 0;
}

.cta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  padding: 3rem 2rem;
  max-width: 1200px;
  margin: 2rem auto;
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
  border-radius: 15px;
  color: var(--white);
}

.cta-content h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.cta-content p {
  font-size: 1rem;
  line-height: 1.7;
}

.cta-image {
  width: 100%;
  border-radius: 12px;
}

footer {
  background: var(--text-dark);
  color: var(--white);
  padding: 3rem 2rem 1rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto 2rem;
}

.footer-section h4 {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.footer-section p {
  font-size: 0.9rem;
  margin: 0.5rem 0;
  line-height: 1.6;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section ul li {
  margin: 0.5rem 0;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: var(--accent-orange);
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 35px;
  height: 35px;
  background: var(--primary-blue);
  border-radius: 50%;
  font-weight: 700;
}

.social-links a:hover {
  background: var(--accent-orange);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1rem;
  text-align: center;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 1200px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .nav-links {
    gap: 1rem;
    font-size: 0.8rem;
  }

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

  .course-tabs {
    gap: 0.5rem;
  }

  .tab {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
  }

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

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

  .nav-container {
    padding: 0 1rem;
  }
}