@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=DM+Sans:ital,wght@0,400;0,500;1,400&display=swap');

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a26;
  --fg-primary: #e8e8ef;
  --fg-secondary: #8b8b9e;
  --fg-muted: #5a5a6e;
  --accent: #f59e0b;
  --accent-dim: rgba(245, 158, 11, 0.15);
  --accent-glow: rgba(245, 158, 11, 0.4);
  --signal-green: #22c55e;
  --signal-red: #ef4444;
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
}

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

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: 'DM Sans', -apple-system, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  opacity: 0.3;
  pointer-events: none;
  animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.2; transform: translateX(-50%) scale(1); }
  50% { opacity: 0.35; transform: translateX(-50%) scale(1.05); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  background: var(--accent-dim);
  border: 1px solid rgba(245, 158, 11, 0.2);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 2rem;
  letter-spacing: 0.02em;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal-green);
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  max-width: 800px;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--accent) 0%, #fbbf24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .lede {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--fg-secondary);
  max-width: 560px;
  margin-bottom: 3rem;
  line-height: 1.7;
}

/* ---- SIGNAL DEMO ---- */
.signal-demo {
  padding: 4rem 2rem 6rem;
  display: flex;
  justify-content: center;
}

.signal-feed {
  max-width: 640px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.signal-item {
  display: grid;
  grid-template-columns: 10px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 20px 24px;
  background: var(--bg-secondary);
  transition: background 0.2s;
}

.signal-item:hover {
  background: var(--bg-card);
}

.signal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.signal-dot.hot { background: var(--accent); box-shadow: 0 0 8px var(--accent-glow); }
.signal-dot.warm { background: var(--signal-green); box-shadow: 0 0 8px rgba(34, 197, 94, 0.3); }
.signal-dot.new { background: #6366f1; box-shadow: 0 0 8px rgba(99, 102, 241, 0.3); }

.signal-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.signal-company {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
}

.signal-event {
  font-size: 0.85rem;
  color: var(--fg-secondary);
}

.signal-action {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--accent-dim);
  white-space: nowrap;
}

/* ---- FEATURES ---- */
.features {
  padding: 6rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.features-header {
  text-align: center;
  margin-bottom: 4rem;
}

.features-header .overline {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.features-header h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.feature-card {
  padding: 2.5rem 2rem;
  background: var(--bg-secondary);
  transition: background 0.2s;
}

.feature-card:hover {
  background: var(--bg-card);
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 1.2rem;
  display: block;
}

.feature-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--fg-secondary);
  line-height: 1.6;
}

/* ---- VERSUS ---- */
.versus {
  padding: 6rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.versus h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  letter-spacing: -0.02em;
}

.versus-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.versus-col {
  background: var(--bg-secondary);
  padding: 2.5rem 2rem;
}

.versus-col.them {
  opacity: 0.6;
}

.versus-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.versus-col.them .versus-label { color: var(--fg-muted); }
.versus-col.us .versus-label { color: var(--accent); }

.versus-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.versus-col li {
  font-size: 0.95rem;
  padding-left: 24px;
  position: relative;
  color: var(--fg-secondary);
}

.versus-col.them li::before {
  content: '\2715';
  position: absolute;
  left: 0;
  color: var(--signal-red);
  font-weight: 600;
}

.versus-col.us li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--signal-green);
  font-weight: 600;
}

.versus-col.us li { color: var(--fg-primary); }

/* ---- CLOSING ---- */
.closing {
  padding: 8rem 2rem;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  opacity: 0.15;
  pointer-events: none;
}

.closing h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  max-width: 700px;
  margin: 0 auto 1.5rem;
  line-height: 1.1;
}

.closing p {
  font-size: 1.15rem;
  color: var(--fg-secondary);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---- FOOTER ---- */
footer {
  padding: 3rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
}

footer p {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

footer .brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  color: var(--fg-secondary);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  .versus-table {
    grid-template-columns: 1fr;
  }
  .signal-item {
    grid-template-columns: 8px 1fr;
    gap: 12px;
  }
  .signal-action {
    display: none;
  }
  .hero {
    min-height: 70vh;
    padding: 4rem 1.5rem 3rem;
  }
}