:root {
  --bg: #080c14;
  --surface: #0e1623;
  --surface-2: #141e2e;
  --fg: #f0f4ff;
  --fg-muted: #8b9ab4;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.12);
  --accent-glow: rgba(0, 212, 255, 0.25);
  --danger: #ff4d6a;
  --success: #00e5a0;
  --neutral: #b8a84b;
  --border: rgba(240, 244, 255, 0.08);
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .nav-logo, .footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 2rem;
  background: rgba(8, 12, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.03em;
}
.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--fg-muted);
  font-family: 'DM Sans', sans-serif;
}
.status-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--success);
  animation: pulse-dot 2s ease-in-out infinite;
}
.status-dot-sm {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--success);
  border-radius: 50%;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Hero */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  padding: 120px 2rem 80px;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 60% 50%, black 30%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 1;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  font-family: 'Space Grotesk', sans-serif;
}
.label-pulse {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
  animation: pulse-dot 2s infinite;
}
.hero-headline {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.05;
  margin-bottom: 1.5rem;
  color: var(--fg);
}
.headline-accent {
  color: var(--accent);
}
.hero-lede {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 480px;
  margin-bottom: 3rem;
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.stat { display: flex; flex-direction: column; }
.stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--fg);
}
.stat-label {
  font-size: 0.75rem;
  color: var(--fg-muted);
  margin-top: 2px;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* Hero visual */
.hero-visual {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}
.radar-container {
  position: relative;
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.radar-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 212, 255, 0.15);
}
.radar-ring-1 { width: 100px; height: 100px; }
.radar-ring-2 { width: 180px; height: 180px; }
.radar-ring-3 { width: 260px; height: 260px; }
.radar-sweep {
  position: absolute;
  width: 130px;
  height: 130px;
  background: conic-gradient(from 0deg, transparent 0deg, rgba(0, 212, 255, 0.15) 30deg, transparent 60deg);
  border-radius: 50%;
  animation: sweep 4s linear infinite;
}
@keyframes sweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.radar-blip {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent);
  animation: blip-pulse 3s ease-in-out infinite;
}
.radar-blip-1 { top: 15%; right: 20%; animation-delay: 0s; }
.radar-blip-2 { bottom: 30%; left: 12%; animation-delay: 1s; }
.radar-blip-3 { top: 40%; right: 10%; animation-delay: 2s; }
@keyframes blip-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}
.radar-center {
  width: 16px;
  height: 16px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--accent-glow);
}

/* Alert cards */
.alert-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  width: 100%;
  max-width: 300px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  overflow: hidden;
}
.alert-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  border-radius: 3px 0 0 3px;
}
.alert-card-1::before { background: var(--danger); }
.alert-card-2::before { background: var(--neutral); }
.alert-time {
  font-size: 0.7rem;
  color: var(--fg-muted);
  font-family: 'DM Sans', sans-serif;
}
.alert-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg);
  font-family: 'Space Grotesk', sans-serif;
}
.alert-sentiment {
  font-size: 0.7rem;
  font-weight: 600;
  font-family: 'DM Sans', sans-serif;
}
.alert-sentiment.negative { color: var(--danger); }
.alert-sentiment.neutral { color: var(--neutral); }

/* Sections */
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-family: 'Space Grotesk', sans-serif;
  margin-bottom: 0.75rem;
}
.section-headline {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  line-height: 1.15;
  margin-bottom: 3rem;
  color: var(--fg);
}

/* How it works */
.howitworks {
  padding: 100px 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.steps {
  display: flex;
  align-items: center;
  gap: 0;
}
.step {
  flex: 1;
  padding: 2rem;
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid var(--border);
}
.step-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.4;
  margin-bottom: 1rem;
}
.step-content h3 {
  font-size: 1.1rem;
  color: var(--fg);
  margin-bottom: 0.75rem;
}
.step-content p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.7;
}
.step-connector {
  width: 40px;
  height: 2px;
  background: var(--border);
  flex-shrink: 0;
  align-self: center;
  margin: 0 -1px;
  position: relative;
}
.step-connector::after {
  content: '';
  position: absolute;
  right: -1px;
  top: -3px;
  width: 0;
  height: 0;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 6px solid var(--fg-muted);
}

/* Features */
.features {
  padding: 80px 2rem 100px;
  max-width: 1200px;
  margin: 0 auto;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.feature {
  padding: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: border-color 0.2s;
}
.feature:hover {
  border-color: var(--accent-dim);
}
.feature-icon {
  width: 44px;
  height: 44px;
  background: var(--accent-dim);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.feature h3 {
  font-size: 1rem;
  color: var(--fg);
  margin-bottom: 0.6rem;
}
.feature p {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* Difference */
.difference {
  padding: 80px 2rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.diff-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.diff-headline {
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--fg);
}
.diff-body {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.75;
}
.compare-table {
  width: 100%;
}
.compare-header {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.5rem;
}
.compare-header span:not(:first-child) {
  text-align: right;
}
.compare-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.compare-row span:first-child {
  color: var(--fg);
}
.compare-row .other {
  text-align: right;
  color: var(--fg-muted);
  text-decoration: line-through;
  opacity: 0.5;
}
.compare-row .pulseiq-highlight {
  text-align: right;
  color: var(--accent);
  font-weight: 600;
}

/* Closing */
.closing {
  padding: 120px 2rem;
  text-align: center;
}
.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}
.closing-headline {
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--fg);
}
.closing-body {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 2.5rem;
}
.closing-cta {
  display: inline-block;
  padding: 0.875rem 2rem;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 8px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 500;
}

/* Footer */
.footer {
  padding: 40px 2rem;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo {
  font-size: 1rem;
  color: var(--fg);
}
.footer-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 4px;
}
.footer-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 100px; }
  .hero-visual { display: none; }
  .steps { flex-direction: column; }
  .step-connector { width: 2px; height: 24px; margin: -0.5rem 0; }
  .step-connector::after { display: none; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .diff-inner { grid-template-columns: 1fr; gap: 3rem; }
}
@media (max-width: 600px) {
  .hero { padding: 80px 1.25rem 60px; }
  .hero-stats { gap: 1rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .howitworks, .features, .closing { padding-left: 1.25rem; padding-right: 1.25rem; }
  .compare-header, .compare-row { font-size: 0.8rem; }
}