:root {
  --bg-color: #090909;
  --surface-color: #141414;
  --text-color: #FFFFFF;
  --text-muted: #CCCCCC; /* Increased contrast for accessibility */
  --accent-blue: #00E5FF;
  --accent-cyan: #00B4D8;
  --border-color: #333333;
  --transition-speed: 0.3s;
  --font-heading: 'Inter', sans-serif;
  --font-body: 'Roboto', sans-serif;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-bottom: env(safe-area-inset-bottom);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color var(--transition-speed);
}

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

/* Typography Utilities */
.text-center { text-align: center; }
.text-accent { color: var(--accent-blue); }
.text-muted { color: var(--text-muted); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6rem 0;
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--accent-blue);
  border: 2px solid var(--accent-blue);
  padding: 1rem 2.5rem;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.btn:hover {
  background: var(--accent-blue);
  color: var(--bg-color);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
  transform: translateY(-2px);
}

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

.btn-primary:hover {
  background: transparent;
  color: var(--accent-blue);
}

.card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
  border-radius: 4px;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 229, 255, 0.1);
  border-color: var(--accent-cyan);
}

/* Header & Nav */
header {
  background: rgba(9, 9, 9, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--text-color);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--text-color);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 1px;
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 2rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
  background-color: var(--bg-color);
}

.hero-bg-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
  z-index: 0;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  z-index: 2;
  padding: 0 2rem;
  position: relative;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  text-shadow: 0 4px 20px rgba(0,0,0,0.8);
}

.hero p {
  font-size: 1.25rem;
  color: #E0E0E0;
  margin-bottom: 3rem;
  text-shadow: 0 2px 10px rgba(0,0,0,0.8);
  font-weight: 500;
}

.hero-btns {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}

/* Forms (CRO Optimized) */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-color);
  font-weight: 600;
  font-size: 0.9rem;
}

.form-control {
  width: 100%;
  padding: 1rem;
  background: var(--surface-color);
  border: 2px solid var(--border-color);
  color: var(--text-color);
  font-family: var(--font-body);
  transition: border-color var(--transition-speed);
  border-radius: 4px;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.2);
}

/* Mobile Sticky CTA */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--accent-blue);
  padding: 1rem;
  text-align: center;
  z-index: 999;
  box-shadow: 0 -5px 20px rgba(0,0,0,0.5);
}

.mobile-sticky-cta a {
  color: var(--bg-color);
  font-family: var(--font-heading);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 1rem;
  display: block;
}

/* Footer */
footer {
  background: var(--surface-color);
  padding: 4rem 2rem;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--surface-color);
    flex-direction: column;
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .hero-btns {
    flex-direction: column;
  }
  
  /* Show mobile sticky CTA and pad body bottom so it doesn't overlap content */
  body {
    padding-bottom: 70px;
  }
  .mobile-sticky-cta {
    display: block;
  }
}