:root {
  /* Core Colors */
  --bg-dark: #0A0A0B;
  --bg-surface: rgba(255, 255, 255, 0.05);
  --accent-green: #3DD98B;
  --accent-blue: #1D4ED8;
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --neon-shadow: 0 0 15px rgba(61, 217, 139, 0.3);
  
  /* Typography */
  --font-main: 'Inter', sans-serif;
  --font-header: 'Outfit', sans-serif;
  
  /* Spacing */
  --section-padding: 100px 5%;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-header);
  font-weight: 700;
  letter-spacing: -0.02em;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

/* --- Layout Utility --- */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: var(--section-padding);
}

.glass {
  background: var(--bg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
}

/* --- Navigation --- */
nav {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 1200px;
  z-index: 1000;
  padding: 15px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 50px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  background: rgba(10, 10, 11, 0.7); /* Slightly darker for readability */
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-green);
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a:hover {
  color: var(--accent-green);
}

.btn-primary {
  background: var(--accent-green);
  color: var(--bg-dark);
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  box-shadow: var(--neon-shadow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(61, 217, 139, 0.5);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  background-size: cover;
  background-position: center;
  padding-top: 150px; /* Increase padding to prevent overlap with fixed navbar */
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, transparent 0%, var(--bg-dark) 90%);
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
}

.badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(61, 217, 139, 0.1);
  color: var(--accent-green);
  border: 1px solid rgba(61, 217, 139, 0.3);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5.5rem);
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Service Cards --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 60px;
}

.service-card {
  padding: 40px;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: pointer;
}

.service-card:hover {
  border-color: var(--accent-green);
  transform: translateY(-10px);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: rgba(61, 217, 139, 0.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-green);
  margin-bottom: 24px;
  font-size: 1.5rem;
}

/* --- YouTube Videos Hub --- */
.video-hub {
  padding: 60px 0;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.video-card {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  border-radius: 16px;
  position: relative;
}

.video-card iframe {
  width: 100%;
  height: 100%;
}

/* --- Footer --- */
footer {
  padding: 80px 5%;
  border-top: 1px solid var(--glass-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 60px;
}

/* --- Animations --- */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Mobile Menu --- */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--accent-green);
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 992px) {
  nav {
    width: 95%;
    padding: 10px 20px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 20px;
  }

  .nav-links { display: none; }
  
  .mobile-menu-btn {
    display: block;
  }

  nav {
    border-radius: 25px;
    padding: 10px 15px;
  }

  .logo {
    font-size: 1.1rem;
  }

  .logo img {
    height: 32px !important;
  }

  nav .btn-primary { 
    display: none; 
  }
  
  nav .btn-primary:has(.fa-shield-alt),
  nav .btn-primary:has([data-lucide="shield-check"]) {
    display: flex;
    padding: 8px 15px;
    font-size: 0.8rem;
    white-space: nowrap;
  }


  .hero {
    padding-top: 120px;
  }

  .hero h1 {
    font-size: 2.8rem;
    line-height: 1.2;
  }

  .hero p {
    font-size: 1.1rem;
  }

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

  .service-card {
    padding: 30px 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .footer-grid div {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .footer-grid ul {
    align-items: center;
  }

  .footer-grid div:first-child div {
    justify-content: center;
  }
}