:root {
  --bg: #0a0e17;
  --bg-elevated: #111827;
  --bg-card: #151d2e;
  --fg: #e2e8f0;
  --fg-muted: #8892a4;
  --accent: #00ffa3;
  --accent-dim: rgba(0, 255, 163, 0.12);
  --accent-glow: rgba(0, 255, 163, 0.25);
  --border: rgba(255, 255, 255, 0.06);
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-display);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,255,163,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,163,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 70%);
}

.hero-content {
  position: relative;
  max-width: 820px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border: 1px solid var(--accent-dim);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
  background: var(--accent-dim);
}

.pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { opacity: 0.6; box-shadow: 0 0 0 8px transparent; }
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---- THREAT BAR ---- */
.threat-bar {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  padding: 2.5rem 2rem;
}

.threat-bar-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.threat-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.threat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* ---- FEATURES ---- */
.features {
  padding: 6rem 2rem;
}

.features-inner {
  max-width: 1040px;
  margin: 0 auto;
}

.features h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(0,255,163,0.2);
  box-shadow: 0 0 30px rgba(0,255,163,0.05);
}

.feature-icon {
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 1rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 8px;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ---- HOW IT WORKS ---- */
.how-it-works {
  padding: 5rem 2rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.how-inner {
  max-width: 720px;
  margin: 0 auto;
}

.how-it-works h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
  text-align: center;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.step {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  flex-shrink: 0;
  letter-spacing: 0.05em;
  line-height: 1;
}

.step-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.step-content p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ---- CLOSING ---- */
.closing {
  padding: 6rem 2rem;
  text-align: center;
}

.closing-inner {
  max-width: 640px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
}

.closing p {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ---- FOOTER ---- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 2rem;
  text-align: center;
}

.footer-brand {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 0.3rem;
}

.footer-tagline {
  font-size: 0.82rem;
  color: var(--fg-muted);
}

/* ---- CTA BUTTON ---- */
.hero-cta-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  margin-top: 2.5rem;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2rem;
  background: var(--accent);
  color: #0a0e17;
  border-radius: 10px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
  box-shadow: 0 0 30px var(--accent-glow);
}

.cta-btn:hover {
  background: #00ffb8;
  box-shadow: 0 0 50px var(--accent-glow);
  transform: translateY(-1px);
}

.cta-arrow {
  font-size: 1.1rem;
  transition: transform 0.2s;
}

.cta-btn:hover .cta-arrow { transform: translateX(3px); }

.cta-hint {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .hero { min-height: 70vh; padding: 4rem 1.5rem 3rem; }
  .features-grid { grid-template-columns: 1fr; }
  .threat-bar-inner {
    flex-wrap: wrap;
    justify-content: center;
  }
  .threat-divider { display: none; }
  .threat-stat { min-width: 40%; }
  .step { flex-direction: column; gap: 0.75rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .hero-sub { font-size: 1rem; }
  .threat-stat { min-width: 100%; }
  .stat-number { font-size: 1.6rem; }
}