:root {
  --primary-bg: #0a1612;
  --secondary-bg: #0f2419;
  --tertiary-bg: #14291f;
  --card-bg: #1a3329;
  --primary-color: #10b981;
  --primary-hover: #059669;
  --primary-light: #34d399;
  --text-light: #e8f5e9;
  --text-dark: #1a1a1a;
  --accent-gold: #fbbf24;
  --accent-red: #dc2626;
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans Bengali", Arial, sans-serif;
  background-color: var(--primary-bg);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

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

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 1rem;
  line-height: 1.3;
}

h4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.8rem;
}

p {
  margin-bottom: 1rem;
  line-height: 1.8;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--primary-light);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.header {
  background-color: #0a1612;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(16, 185, 129, 0.1);
  border-bottom: 1px solid rgba(16, 185, 129, 0.2);
}

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

.navbar-brand {
  display: flex;
  align-items: center;
}

.logo {
  height: 48px;
  width: auto;
  max-width: 180px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.5rem;
}

.navbar-nav .nav-link {
  color: var(--text-light);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s ease;
  padding: 0.5rem 0;
}

.navbar-nav .nav-link:hover {
  color: var(--primary-color);
}

.header-cta {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.btn {
  padding: 0.7rem 1.8rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  text-align: center;
  display: inline-block;
}

.btn-register {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
  color: var(--text-dark);
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.btn-register:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
  color: var(--text-dark);
}

.btn-login {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

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

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
}

.hero-section {
  background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-text h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-text .lead {
  font-size: 1.2rem;
  line-height: 1.8;
  margin-bottom: 2rem;
  color: var(--text-light);
  opacity: 0.95;
}

.hero-image img {
  border-radius: 15px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  border: 3px solid var(--primary-color);
}

.section {
  padding: 80px 0;
}

.section-alt {
  background-color: var(--secondary-bg);
}

.section-tertiary {
  background-color: var(--tertiary-bg);
}

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

.mb-5 {
  margin-bottom: 3rem;
}

.mt-4 {
  margin-top: 2rem;
}

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

.card {
  background-color: var(--card-bg);
  border: 2px solid var(--primary-color);
  border-radius: 15px;
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(16, 185, 129, 0.1), transparent);
  transform: rotate(45deg);
  transition: all 0.5s;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(16, 185, 129, 0.3);
}

.card:hover::before {
  left: 100%;
}

.icon-box {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 2.5rem;
  color: var(--text-dark);
  box-shadow: 0 5px 15px rgba(16, 185, 129, 0.4);
}

.two-col-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.two-col-section.reverse {
  direction: rtl;
}

.two-col-section.reverse > * {
  direction: ltr;
}

.content-image {
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  border: 3px solid var(--primary-color);
}

.feature-list {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
}

.feature-list li {
  padding: 0.8rem 0;
  padding-left: 2rem;
  position: relative;
  line-height: 1.6;
}

.feature-list li::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-size: 1.1rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.stat-item {
  text-align: center;
  padding: 2rem;
  background-color: var(--card-bg);
  border-radius: 15px;
  border: 2px solid var(--primary-color);
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
}

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

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

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

.testimonial-card {
  background-color: var(--card-bg);
  border-left: 5px solid var(--primary-color);
  padding: 2rem;
  border-radius: 10px;
  transition: all 0.3s ease;
}

.testimonial-card:hover {
  transform: translateX(10px);
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.2);
}

.rating {
  color: var(--accent-gold);
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

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

.pricing-card {
  background-color: var(--card-bg);
  border-radius: 15px;
  overflow: hidden;
  border: 2px solid var(--primary-color);
  transition: all 0.3s ease;
}

.pricing-card.featured {
  border: 3px solid var(--primary-color);
  transform: scale(1.05);
}

.pricing-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(16, 185, 129, 0.3);
}

.pricing-header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
  color: var(--text-dark);
  padding: 2rem;
  text-align: center;
}

.pricing-header h3 {
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.pricing-amount {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 1rem 0;
}

.pricing-body {
  padding: 2rem;
}

.pricing-feature {
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(16, 185, 129, 0.2);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pricing-feature i {
  color: var(--primary-color);
}

.longform-content {
  background-color: var(--card-bg);
  border-radius: 15px;
  padding: 3rem;
  margin: 3rem 0;
  border: 2px solid var(--primary-color);
}

.longform-content h2 {
  margin-top: 2rem;
}

.longform-content h2:first-child {
  margin-top: 0;
}

.longform-content h3 {
  margin-top: 1.5rem;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.faq-item {
  background-color: var(--card-bg);
  border-radius: 10px;
  padding: 1.5rem;
  border-left: 4px solid var(--primary-color);
  transition: all 0.3s ease;
}

.faq-item:hover {
  transform: translateX(10px);
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.2);
}

.faq-question {
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.8rem;
  font-size: 1.1rem;
}

.faq-answer {
  line-height: 1.8;
}

.cta-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
  padding: 80px 0;
  text-align: center;
  color: var(--text-dark);
}

.cta-section h2 {
  color: var(--text-dark);
  margin-bottom: 1.5rem;
}

.cta-section p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: var(--text-dark);
}

.cta-section .btn {
  background-color: var(--primary-bg);
  color: var(--primary-color);
  border: 2px solid var(--primary-bg);
  font-size: 1.1rem;
  padding: 1rem 2.5rem;
}

.cta-section .btn:hover {
  background-color: transparent;
  color: var(--text-dark);
  border-color: var(--text-dark);
}

.footer {
  background-color: #0a1612;
  padding: 60px 0 30px;
  border-top: 3px solid var(--primary-color);
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer h4 {
  margin-bottom: 1.5rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-links a {
  color: var(--text-light);
  transition: all 0.3s ease;
}

.footer-links a:hover {
  color: var(--primary-color);
  padding-left: 5px;
}

.footer-contact p {
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-contact i {
  color: var(--primary-color);
}

.footer-bottom {
  border-top: 1px solid rgba(16, 185, 129, 0.2);
  padding-top: 2rem;
  text-align: center;
}

.footer-bottom p {
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  opacity: 0.8;
}

.breadcrumb {
  background-color: transparent;
  padding: 1.5rem 0;
  margin: 0;
  display: flex;
  list-style: none;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb li::after {
  content: '/';
  color: var(--text-light);
  opacity: 0.5;
}

.breadcrumb li:last-child::after {
  content: '';
}

.breadcrumb a {
  color: var(--primary-color);
}

.breadcrumb .active {
  color: var(--text-light);
  opacity: 0.8;
}

.inner-hero {
  background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
  padding: 60px 0;
  text-align: center;
}

.inner-hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.inner-hero p {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 800px;
  margin: 0 auto;
}

.video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  max-width: 100%;
  background-color: #000;
  border-radius: 15px;
  margin: 2rem 0;
  border: 3px solid var(--primary-color);
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.contact-info {
  background-color: var(--card-bg);
  border-radius: 15px;
  padding: 2rem;
  border: 2px solid var(--primary-color);
  margin: 2rem 0;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(16, 185, 129, 0.2);
}

.contact-item:last-child {
  border-bottom: none;
}

.contact-item i {
  font-size: 1.5rem;
  color: var(--primary-color);
  width: 40px;
  text-align: center;
}

.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.error-content h1 {
  font-size: 6rem;
  margin-bottom: 1rem;
}

.error-content h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.error-content p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

@media (max-width: 992px) {
  .navbar-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--primary-bg);
    flex-direction: column;
    padding: 1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    gap: 0;
  }

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

  .navbar-nav .nav-link {
    padding: 1rem;
    border-bottom: 1px solid rgba(16, 185, 129, 0.2);
  }

  .mobile-toggle {
    display: block;
  }

  .header-cta {
    gap: 0.5rem;
  }

  .btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
  }

  .hero-row,
  .two-col-section {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-text h1 {
    font-size: 2rem;
  }

  .hero-text .lead {
    font-size: 1rem;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.7rem;
  }

  h3 {
    font-size: 1.3rem;
  }

  .section {
    padding: 50px 0;
  }

  .card-grid,
  .stats-grid,
  .testimonial-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .inner-hero h1 {
    font-size: 2rem;
  }

  .error-content h1 {
    font-size: 4rem;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 15px;
  }

  .hero-section {
    padding: 60px 0 40px;
  }

  .hero-text h1 {
    font-size: 1.8rem;
  }

  .section {
    padding: 40px 0;
  }

  .longform-content {
    padding: 2rem 1.5rem;
  }

  .btn {
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
  }

  .stat-number {
    font-size: 2.5rem;
  }

  .pricing-amount {
    font-size: 2rem;
  }
}