:root {
  /* Colors - Modern Dark Mode */
  --bg-dark: #070908;
  --bg-card: #121614;
  --bg-card-hover: #1a201d;
  
  --primary: #00d664; /* Vibrant Neo-Green */
  --primary-hover: #00fa75;
  --primary-dim: rgba(0, 214, 100, 0.15);
  
  --text-main: #f5f5f5;
  --text-muted: #9ca3af;
  
  --border-color: rgba(255, 255, 255, 0.08);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Utilities */
  --radius: 12px;
  --radius-lg: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul {
  list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

/* Layout */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

section {
  padding: 100px 0;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--bg-dark);
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.5px;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 214, 100, 0.2);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text-main);
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  cursor: pointer;
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  transition: all var(--transition);
  padding: 24px 0;
}

.navbar.scrolled {
  background: rgba(7, 9, 8, 0.9);
  backdrop-filter: blur(12px);
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo span {
  color: var(--primary);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  opacity: 0.8;
}

.nav-links a:hover,
.nav-links a.active {
  opacity: 1;
  color: var(--primary);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition);
}

@media (max-width: 768px) {
  .nav-links {
    display: none; /* simple implementation for now */
  }
  .hamburger {
    display: flex;
  }
  .nav-cta .btn-primary {
    display: none;
  }
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }