/* Base and Reset */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Montserrat', 'Segoe UI', Arial, sans-serif;
  background: #181c23;
  color: #f3f3f3;
  min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: 220px;
  height: 100vh;
  background: rgba(24,28,35,0.98);
  box-shadow: 2px 0 16px rgba(0,0,0,0.15);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1000;
  transition: left 0.3s;
}
.logo {
  font-size: 2.2rem;
  font-weight: 900;
  color: #39ff14;
  margin: 2rem 0 2rem 0;
  letter-spacing: 2px;
  text-shadow: 0 2px 16px #39ff1460;
}
.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.nav-links li a {
  color: #f3f3f3;
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 1px;
  transition: color 0.2s;
}
.nav-links li a:hover, .nav-links li a.active {
  color: #39ff14;
}
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  margin: 2rem 0 0 0;
  cursor: pointer;
}
.menu-toggle span {
  width: 28px;
  height: 4px;
  background: #39ff14;
  border-radius: 2px;
}

/* Main Content Layout */
main {
  margin-left: 220px;
  padding: 0;
  transition: margin-left 0.3s;
}

/* Hero Section */
.hero {
  display: flex;
  min-height: 80vh;
  align-items: stretch;
  background: linear-gradient(120deg, #181c23 60%, #39ff14 120%);
  position: relative;
}
.hero-split {
  flex: 1 1 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}
.hero-image img {
  width: 100%;
  max-width: 500px;
  border-radius: 2rem;
  box-shadow: 0 8px 32px #39ff1430;
  margin: 2rem;
}
.hero-text {
  flex-direction: column;
  align-items: flex-start;
  padding: 4rem 2rem;
  z-index: 1;
}
.hero-text h1 {
  font-size: 3rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}
.hero-text h1 span {
  color: #39ff14;
  text-shadow: 0 2px 16px #39ff1460;
}
.hero-text p {
  font-size: 1.3rem;
  margin-bottom: 2.5rem;
  color: #e0e0e0;
}
.btn.neon {
  background: #39ff14;
  color: #181c23;
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 30px;
  font-size: 1.1rem;
  font-weight: bold;
  box-shadow: 0 2px 16px #39ff1460;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  animation: neon-glow 1.5s infinite alternate;
}
@keyframes neon-glow {
  from { box-shadow: 0 2px 16px #39ff1460; }
  to { box-shadow: 0 2px 32px #39ff14cc; }
}
.btn.neon:hover {
  background: #fff;
  color: #39ff14;
}

/* Glassmorphism Cards */
.glass {
  background: rgba(255,255,255,0.08);
  border-radius: 1.5rem;
  box-shadow: 0 4px 32px #0002;
  backdrop-filter: blur(8px);
  border: 1.5px solid rgba(57,255,20,0.15);
}

/* Features Grid */
.features {
  padding: 5rem 2rem 2rem 2rem;
  text-align: center;
}
.features h2 {
  font-size: 2.2rem;
  margin-bottom: 2.5rem;
  color: #39ff14;
  font-weight: 800;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2.5rem;
  justify-items: center;
}
.feature-card {
  padding: 2.5rem 1.5rem;
  position: relative;
  min-width: 220px;
  max-width: 320px;
  margin-bottom: 1.5rem;
  z-index: 1;
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card.overlap {
  top: 1.5rem;
  left: 1.5rem;
  z-index: 2;
}
.feature-card .icon {
  font-size: 2.5rem;
  margin-bottom: 1.2rem;
  display: block;
  color: #39ff14;
  text-shadow: 0 2px 16px #39ff1460;
}
.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.7rem;
}

/* Programs Cards */
.programs {
  padding: 5rem 2rem 2rem 2rem;
  text-align: center;
}
.programs h2 {
  color: #39ff14;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 2.5rem;
}
.programs-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  justify-content: center;
}
.program-card {
  padding: 2.2rem 1.2rem;
  min-width: 220px;
  max-width: 300px;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
  transition: transform 0.2s, box-shadow 0.2s;
}
.program-card.overlap {
  top: 1.5rem;
  left: 1.5rem;
  z-index: 2;
}
.program-card h3 {
  color: #39ff14;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.7rem;
}

/* Trainers */
.trainers {
  padding: 5rem 2rem 2rem 2rem;
  text-align: center;
}
.trainers h2 {
  color: #39ff14;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 2.5rem;
}
.trainers-list {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  justify-content: center;
}
.trainer {
  padding: 2rem 1.2rem 1.5rem 1.2rem;
  min-width: 200px;
  max-width: 260px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
  margin-bottom: 1.5rem;
}
.trainer.overlap {
  top: 1.5rem;
  left: 1.5rem;
  z-index: 2;
}
.trainer img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 1rem;
  border: 3px solid #39ff14;
  box-shadow: 0 2px 16px #39ff1460;
}

/* Testimonial Carousel */
.testimonials {
  padding: 5rem 2rem 2rem 2rem;
  text-align: center;
}
.testimonials h2 {
  color: #39ff14;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 2.5rem;
}
.testimonial-carousel {
  position: relative;
  max-width: 500px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.testimonial {
  display: none;
  flex-direction: column;
  align-items: center;
  padding: 2.2rem 1.2rem;
  min-width: 220px;
  max-width: 500px;
  font-style: italic;
  font-size: 1.1rem;
  margin: 0 1rem;
  transition: opacity 0.3s;
}
.testimonial.active {
  display: flex;
  opacity: 1;
}
.carousel-btn {
  background: #39ff14;
  color: #181c23;
  border: none;
  border-radius: 50%;
  width: 38px;
  height: 38px;
  font-size: 1.5rem;
  font-weight: bold;
  margin: 0 0.5rem;
  cursor: pointer;
  box-shadow: 0 2px 16px #39ff1460;
  transition: background 0.2s, color 0.2s;
}
.carousel-btn:hover {
  background: #fff;
  color: #39ff14;
}

/* Contact Form */
.contact {
  padding: 5rem 2rem 2rem 2rem;
  text-align: center;
}
.contact h2 {
  color: #39ff14;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 2.5rem;
}
.contact-form {
  max-width: 400px;
  margin: 2rem auto 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.contact-form input,
.contact-form textarea {
  padding: 1rem;
  border: 1.5px solid #39ff1430;
  border-radius: 12px;
  font-size: 1rem;
  background: rgba(255,255,255,0.08);
  color: #fff;
  outline: none;
  transition: border 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border: 1.5px solid #39ff14;
}
.contact-form button {
  margin-top: 0.5rem;
}

/* Footer */
footer {
  background: rgba(24,28,35,0.98);
  color: #fff;
  padding: 2rem 1rem 1rem 1rem;
  text-align: center;
  margin-top: 3rem;
}
.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}
.footer-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-top: 1rem;
}
.footer-links li a {
  color: #39ff14;
  text-decoration: underline;
  font-size: 0.95rem;
}

/* Responsive Styles */
@media (max-width: 1100px) {
  .hero {
    flex-direction: column;
    min-height: unset;
  }
  main {
    margin-left: 0;
  }
  .sidebar {
    left: -220px;
    transition: left 0.3s;
  }
  .sidebar.active {
    left: 0;
  }
}
@media (max-width: 900px) {
  .features-grid, .programs-cards, .trainers-list {
    flex-direction: column !important;
    display: flex;
    align-items: center;
  }
}
@media (max-width: 700px) {
  .sidebar {
    left: -220px;
    position: fixed;
    width: 220px;
    height: 100vh;
    background: rgba(24,28,35,0.98);
    z-index: 2000;
  }
  .sidebar.active {
    left: 0;
  }
  .menu-toggle {
    display: flex;
  }
  main {
    margin-left: 0;
  }
}
@media (max-width: 500px) {
  .hero-text h1 {
    font-size: 2rem;
  }
  .logo {
    font-size: 1.3rem;
  }
  .footer-links {
    flex-direction: column;
    gap: 0.5rem;
  }
}