:root {
  /* Colors */
  --bg-color: #0b0d14;
  --bg-secondary: #131620;
  --bg-card: #1c202e;
  --text-main: #e2e8f0;
  --text-muted: #94a3b8;
  --accent-blue: #0ea5e9;
  --accent-cyan: #06b6d4;
  --accent-purple: #8b5cf6;
  --border-color: #334155;
  --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.15);
  
  /* Typography */
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", sans-serif;
  --font-heading-weight: 700;
  --line-height-body: 1.6;
  
  /* Spacing & Layout */
  --max-width: 1120px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  
  /* Header Height */
  --header-height: 80px;
}

/* Reset & Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: var(--line-height-body);
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-blue);
}

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

ul {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: white;
  font-weight: var(--font-heading-weight);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }

p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* Layout Utilities */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.section {
  padding: var(--spacing-lg) 0;
}

.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

/* Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: white;
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--text-muted);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s, border-color 0.2s;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-blue);
}

.pill {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 99px;
  background: rgba(14, 165, 233, 0.1);
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
}

/* Header & Nav */
header {
  height: var(--header-height);
  border-bottom: 1px solid var(--border-color);
  background: rgba(11, 13, 20, 0.9);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  flex-direction: column;
}

.logo-main {
  font-size: 1.25rem;
  font-weight: 800;
  color: white;
  letter-spacing: -0.03em;
}

.logo-sub {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

nav ul {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

nav a.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

nav a.nav-link:hover, nav a.nav-link.active {
  color: white;
}

nav a.nav-link.active {
  border-bottom: 2px solid var(--accent-blue);
  padding-bottom: 2px;
}

.nav-cta {
  margin-left: 1rem;
}

/* Mobile Nav Toggle */
.mobile-menu-toggle {
  display: none;
  color: white;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 6rem 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(to right, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.kicker {
  color: var(--accent-cyan);
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  display: block;
}

.hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 0 40px rgba(14, 165, 233, 0.1);
  border: 1px solid rgba(14, 165, 233, 0.2);
  background: #000;
  aspect-ratio: 16/9;
}

.hero-visual video, .hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.8;
}

/* Stats Row */
.stats-row {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 2rem 0;
  margin-bottom: 4rem;
}

.stat-item h3 {
  font-size: 2rem;
  color: var(--accent-blue);
  margin-bottom: 0.25rem;
}

.stat-item p {
  font-size: 0.9rem;
  margin: 0;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 4rem 0;
  margin-top: 4rem;
  background: var(--bg-secondary);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

/* Page Specifics */
.page-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4rem auto;
}

/* Responsive */
@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  .hero { 
    grid-template-columns: 1fr; 
    gap: 2rem;
    padding: 4rem 0;
  }
  .hero-content h1 { font-size: 2.5rem; }
  
  .nav-container nav {
    display: none; /* Simplification: standard mobile menu omitted for pure static without js complexity, or stack it */
  }

  /* Simple Mobile Stack for Nav (if no JS) */
  .nav-container {
      flex-direction: column;
      height: auto;
      padding: 1rem;
  }
  nav ul {
      flex-wrap: wrap;
      justify-content: center;
      margin-top: 1rem;
      gap: 1rem;
  }
  .logo { margin-bottom: 0.5rem; }
  .nav-cta { margin-top: 1rem; }
  
  .stats-row {
      flex-direction: column;
      gap: 2rem;
      text-align: center;
  }
}