:root {
  --primary-blue: #0A192F;
  --primary-yellow: #FFB800;
  --secondary-blue: #112240;
  --accent-blue: #64FFDA;
  --text-light: #E6F1FF;
  --text-dark: #8892B0;
  --white: #FFFFFF;
  --bg-gradient: linear-gradient(135deg, #0A192F 0%, #112240 100%);
  --nav-height: 85px;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--primary-blue);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
}

.highlight {
  color: var(--primary-yellow);
}

/* Utilities */
.text-center { text-align: center; }
.section-title { font-size: 2.5rem; margin-bottom: 3rem; color: var(--white); }
.section-title span { color: var(--primary-yellow); }
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background-color: #ffd24d;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(255, 184, 0, 0.2);
}

.btn-youtube {
  background-color: #FF0000;
  color: white;
}

.btn-youtube:hover {
  background-color: #cc0000;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(255, 0, 0, 0.2);
}

.btn-instagram {
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: white;
}

.btn-instagram:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(225, 48, 108, 0.3);
}

.btn-outline {
  background-color: transparent;
  color: var(--accent-blue);
  border: 2px solid var(--accent-blue);
}

.btn-outline:hover {
  background-color: rgba(100, 255, 218, 0.1);
}

.cta-pulse {
  animation: pulse 2s infinite;
}

/* Nav Actions & Icons */
.nav-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.btn-icon {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0 10px;
  transition: transform 0.3s;
  color: var(--primary-yellow);
}

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

.nav-mobile-actions {
  display: none;
  flex-direction: column;
  gap: 15px;
  padding: 20px;
  width: 100%;
}

.nav-mobile-actions .btn {
  width: 100%;
}

.desktop-only {
  display: inline-block;
}

/* Specific button styles previously inline */
.nav-actions .btn-outline {
  padding: 0.6rem 1rem;
  border: 1px solid var(--primary-yellow);
  color: var(--primary-yellow);
  background: rgba(0, 0, 0, 0.3);
  font-size: 0.9rem;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--nav-height);
  background: rgba(10, 25, 47, 0.85);
  backdrop-filter: blur(10px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 5%;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-brand img {
  height: 50px;
  width: auto;
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: color 0.3s ease;
}

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

.hamburger {
  display: none;
  cursor: pointer;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  -webkit-transition: all 0.3s ease-in-out;
  transition: all 0.3s ease-in-out;
  background-color: var(--white);
}

/* Hero Section */
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

#hero-video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  z-index: -2;
  object-fit: cover;
}

.hero .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(10, 25, 47, 0.7), rgba(10, 25, 47, 0.9));
  z-index: -1;
}

.hero-content {
  z-index: 1;
  max-width: 800px;
  padding: 0 20px;
}

.hero-title {
  font-size: 4rem;
  margin-bottom: 1rem;
  line-height: 1.1;
  color: var(--white);
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: var(--text-dark);
}

.age-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 8px 20px;
  border-radius: 30px;
  font-weight: 600;
  margin-bottom: 2rem;
  backdrop-filter: blur(5px);
}

.cta-group {
  margin-bottom: 2rem;
  display: flex;
  gap: 15px;
  justify-content: center;
}

/* Social Proof Section */
.social-proof {
  background: var(--secondary-blue);
  padding: 40px 0;
  border-top: 1px solid rgba(100, 255, 218, 0.2);
  border-bottom: 1px solid rgba(100, 255, 218, 0.2);
}

.stats-container {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 20px;
  text-align: center;
  max-width: 1000px;
  margin: 0 auto;
}

.stat-item h3 {
  font-size: 3rem;
  color: var(--primary-yellow);
  margin-bottom: 5px;
}

.stat-item p {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* About Section */
.about-section {
  padding: 100px 0;
  background: var(--primary-blue);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-video-wide {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  border: 2px solid rgba(255, 255, 255, 0.1);
  max-width: 900px;
  margin: 0 auto;
}

.showcase-vid-wide {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  display: block;
}

.about-text p {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: var(--text-dark);
}

/* Program Breakdown */
.breakdown {
  padding: 100px 0;
  background: var(--bg-gradient);
}

.split-layout {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.split-card {
  background: var(--secondary-blue);
  padding: 40px;
  border-radius: 12px;
  flex: 1;
  min-width: 300px;
  max-width: 500px;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.split-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 5px;
}

.split-card.beginner::before { background: var(--primary-yellow); }
.split-card.advanced::before { background: var(--accent-blue); }

.level-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.1);
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: bold;
  margin-bottom: 20px;
  color: var(--white);
}

.split-card h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: var(--white);
}

.split-card ul {
  list-style: none;
}

.split-card ul li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-light);
}

/* Program Modes Section */
.modes-selector {
  margin-top: 60px;
}

.modes-selector p {
  color: var(--text-dark);
  max-width: 700px;
  margin: 0 auto 40px;
  font-size: 1.1rem;
}

.mode-grid {
  display: flex;
  flex-direction: column;
  gap: 60px;
}

.mode-info-card {
  display: flex;
  align-items: stretch;
  gap: 40px;
  background: rgba(17, 34, 64, 0.3);
  padding: 40px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
}

.mode-info-card:hover {
  background: rgba(17, 34, 64, 0.5);
  border-color: var(--primary-yellow);
  transform: translateY(-5px);
}

.mode-image-container {
  flex: 1;
  min-width: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.poster-frame {
  width: 100%;
  max-width: 450px;
  padding: 12px;
  border: 2px solid var(--primary-yellow);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.2);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.poster-frame img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
  display: block;
}

.mode-text-content {
  flex: 1.2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: left;
}

.mode-text-content h4 {
  margin-bottom: 20px;
  font-size: 2.2rem;
  color: var(--primary-yellow);
}

.mode-text-content p {
  margin: 0 0 25px 0;
  text-align: left;
  line-height: 1.6;
  font-size: 1.1rem;
}

.mode-text-content ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.mode-text-content ul li {
  margin-bottom: 12px;
  display: flex;
  gap: 15px;
  color: var(--text-light);
  font-size: 1.05rem;
  align-items: flex-start;
}

.mode-text-content .bullet {
  color: var(--primary-yellow);
  font-weight: bold;
}

@media (max-width: 992px) {
  .mode-info-card {
    flex-direction: column;
    padding: 30px;
  }
  .mode-image-container {
    width: 100%;
  }
}

/* Timeline */
.pricing {
  padding: 100px 0;
  background: var(--bg-gradient);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.pricing-grid {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.price-card {
  background: rgba(17, 34, 64, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 30px 20px;
  border-radius: 12px;
  flex: 1;
  min-width: 240px;
  max-width: 280px;
  text-align: center;
  position: relative;
}

.price-card.best-value {
  background: rgba(17, 34, 64, 0.95);
  border-color: var(--primary-yellow);
  box-shadow: 0 10px 40px rgba(255, 184, 0, 0.2);
}

.badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-yellow);
  color: var(--primary-blue);
  padding: 5px 15px;
  border-radius: 20px;
  font-weight: bold;
  font-size: 0.9rem;
}

.price-card h3 {
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: 15px;
}

.price {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary-yellow);
  margin-bottom: 15px;
}

.price-card p {
  color:var(--text-dark);
}

.price-card ul {
  list-style: none;
  text-align: left;
  margin-bottom: 30px;
}

.price-card ul li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-light);
  font-size: 0.9rem;
}

/* Partners Section */
.partners {
  padding: 80px 0;
  background: var(--secondary-blue);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 60px;
  margin-top: 40px;
}

.partner-logo {
  max-width: 200px;
  max-height: 100px;
  opacity: 0.95;
  transition: all 0.4s ease;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.95);
  padding: 10px 15px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.partner-logo:hover {
  opacity: 1;
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 8px 25px rgba(100, 255, 218, 0.3);
}

.certification-grid {
  justify-content: center;
  gap: 40px;
}

.certification-img {
  max-width: 400px;
  max-height: 250px;
  border-radius: 8px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 15px; /* Thicker frame for certs */
}

.certification-img:hover {
  transform: scale(1.02);
  border-color: var(--primary-yellow);
  box-shadow: 0 15px 35px rgba(255, 184, 0, 0.2);
}

/* FAQ Section */
.faq {
  padding: 100px 0;
  background: var(--primary-blue);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

details {
  background: rgba(255, 255, 255, 0.03);
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

summary {
  padding: 20px;
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--white);
  cursor: pointer;
  list-style: none;
  position: relative;
}

summary::after {
  content: '+';
  position: absolute;
  right: 20px;
  color: var(--primary-yellow);
}

details[open] summary::after { content: '-'; }

details p {
  padding: 0 20px 20px;
  color: var(--text-dark);
}

/* Footer / Contact */
footer {
  background: #060c17;
  padding: 60px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 30px;
}

.footer-info h3 {
  font-size: 1.8rem;
  color: var(--white);
  margin-bottom: 15px;
}

.footer-info p {
  color: var(--text-dark);
  margin-bottom: 5px;
}

/* Popup Overlay */
.popup-overlay {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.popup-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.popup-box {
  background: var(--secondary-blue);
  padding: 40px;
  border-radius: 12px;
  border: 2px solid var(--accent-blue);
  text-align: center;
  width: 90%;
  max-width: 500px;
  position: relative;
  transform: scale(0.8);
  transition: transform 0.3s ease;
}

.popup-overlay.show .popup-box {
  transform: scale(1);
}

.popup-box h2 {
  font-size: 2rem;
  color: var(--white);
  margin-bottom: 15px;
}

.popup-box p {
  color: var(--text-light);
  margin-bottom: 25px;
  font-size: 1.1rem;
}

.close-btn {
  position: absolute;
  top: 15px; right: 20px;
  font-size: 1.5rem;
  color: var(--text-dark);
  cursor: pointer;
}

.close-btn:hover { color: var(--white); }

/* Enrollment Timeline */
.enroll-timeline {
  padding: 100px 0;
  background: var(--bg-gradient);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.timeline {
  position: relative;
  max-width: 1000px;
  margin: 50px auto 0;
}
.timeline::after {
  content: '';
  position: absolute;
  width: 4px;
  background-color: rgba(100, 255, 218, 0.3);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -2px;
}
.timeline-item {
  padding: 20px 40px;
  position: relative;
  width: 50%;
}
.timeline-item.left {
  left: 0;
}
.timeline-item.right {
  left: 50%;
}
.timeline-dot {
  position: absolute;
  width: 44px;
  height: 44px;
  background-color: var(--primary-yellow);
  border: 4px solid var(--primary-blue);
  border-radius: 50%;
  z-index: 1;
  top: 25px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--primary-blue);
}
.timeline-item.left .timeline-dot {
  right: -22px;
}
.timeline-item.right .timeline-dot {
  left: -22px;
}
.timeline-content {
  padding: 30px;
  background-color: rgba(17, 34, 64, 0.8);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
}
.timeline-content:hover {
  transform: translateY(-5px);
  border-color: rgba(100, 255, 218, 0.3);
}
.timeline-content h3 {
  color: var(--white);
  margin-bottom: 15px;
  font-size: 1.3rem;
}
.timeline-content p {
  color: var(--text-dark);
  font-size: 1rem;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .hero-title { font-size: 2.5rem; }
  .hero-subtitle { font-size: 1.1rem; }
  
  .navbar { 
    padding: 0 12px; 
    height: var(--nav-height);
    flex-wrap: nowrap;
    justify-content: space-between;
  }

  .nav-brand {
    order: 1;
    flex: 0 1 auto;
    max-width: 110px;
  }

  .nav-brand img { height: 32px !important; }
  
  .nav-actions {
    order: 2;
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 8px;
    margin-top: 0;
    padding-bottom: 0;
  }

  .nav-register-btn, .nav-demo-btn {
    padding: 6px 12px !important;
    font-size: 0.8rem !important;
    white-space: nowrap;
    min-width: fit-content;
    text-align: center;
  }

  .theme-toggle-header {
    display: none;
  }

  .nav-mobile-actions {
    display: flex;
    padding-top: 10px;
  }
  
  .nav-mobile-actions .theme-toggle-mobile {
    display: block;
    margin: 10px auto;
    font-size: 2rem;
  }

  .hamburger {
    order: 3;
    display: block;
    margin-left: 10px;
  }
  
  .hamburger.active .bar:nth-child(2) { opacity: 0; }
  .hamburger.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .hamburger.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  
  .nav-menu {
    position: fixed;
    left: -100%;
    top: var(--nav-height);
    gap: 0;
    flex-direction: column;
    background-color: rgba(10, 25, 47, 0.98);
    width: 100%;
    height: calc(100vh - var(--nav-height));
    text-align: center;
    transition: 0.3s;
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    overflow-y: auto;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-link {
    margin: 15px 0;
    display: block;
    font-size: 1.25rem;
    padding: 10px;
  }
  
  .popup-box { padding: 25px; width: 95%; }
  .popup-box h2 { font-size: 1.5rem; }
  .popup-box img { max-width: 150px; }

  .about-grid { grid-template-columns: 1fr; gap: 30px; }
  .about-videos-wrapper { gap: 15px !important; }
  .stat-item h3 { font-size: 2.2rem; }
  .stat-item p { font-size: 0.9rem; }
  
  .split-layout { flex-direction: column; align-items: center; }
  .desktop-divider { display: none; }
  
  .mode-info-card { padding: 20px; }
  .mode-info-card h4 { font-size: 1.6rem; }
  
  .pricing-grid { gap: 20px; }
  .price-card { max-width: 100%; width: 100%; }

  .footer-content { flex-direction: column; text-align: center; gap: 40px; }
  
  .timeline::after { left: 20px; }
  .timeline-item { width: 100%; padding-left: 55px; padding-right: 15px; margin-bottom: 30px; }
  .timeline-item.right { left: 0; }
  .timeline-item.left .timeline-dot, .timeline-item.right .timeline-dot { 
    left: 0; 
    width: 40px; 
    height: 40px;
    font-size: 1rem;
    top: 20px;
  }
  .timeline-content { padding: 20px; }
  .timeline-content h3 { font-size: 1.1rem; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 1rem; }
  .section-title { font-size: 1.8rem; }
  .hero { height: auto; min-height: 100vh; padding: 120px 0 60px; }
  .nav-brand img { height: 35px !important; }
  .btn { padding: 10px 20px; font-size: 1rem; }
  .logo-grid { gap: 30px; }
  .partner-logo { max-width: 140px; }
  .certification-img { max-width: 100%; }
}

/* --- Light Mode Theme Variables & Overrides --- */
body.light-mode {
  --primary-blue: #F0F4F8;
  --secondary-blue: #E2E8F0;
  --accent-blue: #0066CC;
  --text-light: #1A202C;
  --text-dark: #4A5568;
  --white: #1A202C;
  --bg-gradient: linear-gradient(135deg, #F0F4F8 0%, #E2E8F0 100%);
  
  background-color: var(--primary-blue);
  color: var(--text-light);
}

body.light-mode h1, 
body.light-mode h2, 
body.light-mode h3, 
body.light-mode h4, 
body.light-mode h5, 
body.light-mode h6 {
  color: #1A202C;
}

body.light-mode .hero .overlay {
  background: linear-gradient(rgba(240, 244, 248, 0.7), rgba(240, 244, 248, 0.9));
}

body.light-mode .navbar {
  background: rgba(240, 244, 248, 0.95);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

body.light-mode .split-card,
body.light-mode .price-card,
body.light-mode .mode-info-card,
body.light-mode .timeline-content {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

body.light-mode .split-card h3,
body.light-mode .price-card h3,
body.light-mode .mode-info-card h4,
body.light-mode .timeline-content h3 {
  color: #1A202C;
}

body.light-mode .age-badge,
body.light-mode .level-badge {
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.1);
  color: #1A202C;
}

body.light-mode .split-card ul li,
body.light-mode .price-card ul li {
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

body.light-mode details {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

body.light-mode footer {
  background: #E2E8F0;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

body.light-mode .popup-box {
  background: #FFFFFF;
  border-color: #0066CC;
}

body.light-mode .btn-outline {
  border-color: #0066CC;
  color: #0066CC;
}

body.light-mode .timeline::after {
  background-color: rgba(0, 102, 204, 0.3);
}

body.light-mode .hamburger .bar {
  background-color: #1A202C;
}