:root {
  --cyber-bg: #020617;
  --cyber-card: #0B1222;
  --cyber-card-alt: #111A2E;
  --neon-green: #00FF41;
  --neon-cyan: #00F0FF;
  --threat-red: #FF003C;
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-dim: rgba(255, 255, 255, 0.35);
  --neon-green-border: rgba(0, 255, 65, 0.2);
  --glow-shadow: 0 0 20px rgba(0, 255, 65, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--cyber-bg);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

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

/* NAVBAR */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 0;
  background: rgba(2, 6, 23, 0.8);
  backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid var(--neon-green-border);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  text-decoration: none;
}

.logo img {
  margin-right: 0.75rem;
  filter: drop-shadow(0 0 8px var(--neon-green));
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

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

/* HERO SECTION */
.hero {
  padding: 12rem 0 8rem;
  position: relative;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 255, 65, 0.08) 0%, transparent 70%);
  z-index: -1;
}

.badge {
  display: inline-flex;
  padding: 0.5rem 1.25rem;
  background: rgba(0, 255, 65, 0.1);
  color: var(--neon-green);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  margin-bottom: 2rem;
  border: 1px solid var(--neon-green-border);
  animation: fadeInUp 0.8s ease-out;
}

.hero h1 {
  font-size: 4.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -2px;
  animation: fadeInUp 1s ease-out;
}

.hero h1 span {
  display: block;
}

.text-gradient {
  background: linear-gradient(90deg, #fff 0%, var(--neon-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-glow {
  color: var(--neon-green);
  text-shadow: 0 0 30px rgba(0, 255, 65, 0.5);
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 3rem;
  animation: fadeInUp 1.2s ease-out;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  align-items: center;
  animation: fadeInUp 1.4s ease-out;
}

/* BUTTONS */
.btn {
  padding: 1rem 2rem;
  border-radius: 12px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
}

.btn-primary {
  background: var(--neon-green);
  color: var(--cyber-bg);
  box-shadow: 0 10px 20px rgba(0, 255, 65, 0.2);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 30px rgba(0, 255, 65, 0.4);
}

.btn-outline {
  border: 1px solid var(--neon-green);
  color: var(--neon-green);
}

.btn-outline:hover {
  background: rgba(0, 255, 65, 0.05);
  transform: translateY(-3px);
}

/* FEATURES SECTION */
.features {
  padding: 8rem 0;
  background: linear-gradient(to bottom, transparent, var(--cyber-card));
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-header h2 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--cyber-bg);
  padding: 3rem 2rem;
  border-radius: 24px;
  border: 1px solid var(--neon-green-border);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-10px);
  border-color: var(--neon-green);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(800px circle at var(--mouse-x) var(--mouse-y), rgba(0, 255, 65, 0.06), transparent 40%);
  z-index: 0;
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 2rem;
  display: block;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--neon-green);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

/* HOW IT WORKS */
.how-it-works {
  padding: 8rem 0;
}

.steps-container {
  display: flex;
  justify-content: space-between;
  gap: 4rem;
  margin-top: 4rem;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 250px;
  text-align: center;
  position: relative;
}

.step-number {
  width: 64px;
  height: 64px;
  background: var(--cyber-card);
  border: 2px solid var(--neon-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--neon-green);
  margin: 0 auto 2rem;
  box-shadow: 0 0 20px rgba(0, 255, 65, 0.2);
}

.step h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.step p {
  color: var(--text-secondary);
}

/* FOOTER */
.footer {
  padding: 6rem 0 4rem;
  background: var(--cyber-card);
  border-top: 1px solid var(--neon-green-border);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 800;
  gap: 0.75rem;
}

.footer-links {
  display: flex;
  gap: 3rem;
}

.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: var(--neon-green);
}

.copyright {
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* ANIMATIONS */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 3rem;
  }
  .nav-links {
    display: none;
  }
  .hero-actions {
    flex-direction: column;
  }
  .btn {
    width: 100%;
    justify-content: center;
  }
}