:root {
  --bg: #0a0c10;
  --bg-elevated: #12151c;
  --bg-card: #181c26;
  --fg: #e4e7ef;
  --fg-muted: #8a90a0;
  --accent: #00e5a0;
  --accent-dim: rgba(0, 229, 160, 0.12);
  --red: #ff4d6a;
  --yellow: #ffc244;
  --green: #00e5a0;
  --border: rgba(255, 255, 255, 0.06);
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

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

/* ---- HERO ---- */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
  padding: 4rem 5vw;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(0, 229, 160, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

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

.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

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

.hero-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 540px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--accent);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.3rem;
}

/* ---- LIVE FEED ---- */
.hero-feed {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feed-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--fg-muted);
  line-height: 1.5;
  padding: 0.75rem;
  background: var(--bg);
  border-radius: 8px;
  border-left: 3px solid transparent;
}

.feed-item:nth-child(1) { border-left-color: var(--red); }
.feed-item:nth-child(2) { border-left-color: var(--yellow); }
.feed-item:nth-child(3) { border-left-color: var(--green); }
.feed-item:nth-child(4) { border-left-color: var(--red); }

.feed-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 0.35rem;
}

.feed-dot.red { background: var(--red); box-shadow: 0 0 8px var(--red); }
.feed-dot.yellow { background: var(--yellow); box-shadow: 0 0 8px var(--yellow); }
.feed-dot.green { background: var(--green); box-shadow: 0 0 8px var(--green); }

.feed-text { flex: 1; }

/* ---- SIGNALS ---- */
.signals {
  padding: 6rem 5vw;
  background: var(--bg);
}

.section-header {
  max-width: 640px;
  margin-bottom: 3.5rem;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

.section-sub {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

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

.signal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: border-color 0.2s;
}

.signal-card:hover {
  border-color: rgba(0, 229, 160, 0.25);
}

.signal-icon {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--accent);
}

.signal-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

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

/* ---- HOW IT WORKS ---- */
.how {
  padding: 6rem 5vw;
  background: var(--bg-elevated);
}

.loop-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.loop-step {
  padding: 2rem;
  border-left: 2px solid var(--border);
  transition: border-color 0.2s;
}

.loop-step:hover {
  border-left-color: var(--accent);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.4;
  margin-bottom: 1rem;
}

.loop-step:hover .step-num {
  opacity: 1;
}

.step-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.step-content p {
  font-size: 0.88rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ---- CLOSING ---- */
.closing {
  padding: 8rem 5vw;
  text-align: center;
  background: var(--bg);
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80vw;
  height: 40vh;
  background: radial-gradient(ellipse at center bottom, rgba(0, 229, 160, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.closing h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
}

.closing-sub {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ---- CTA BUTTON ---- */
.cta-btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #0a0c10;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8rem 1.8rem;
  border-radius: 10px;
  text-decoration: none;
  transition: opacity 0.2s;
}

.cta-btn-primary:hover { opacity: 0.85; }

/* ---- FOOTER ---- */
.site-footer {
  padding: 3rem 5vw;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.footer-brand {
  font-weight: 600;
  font-size: 1rem;
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-location {
  margin-left: auto;
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 3rem 5vw;
    gap: 2rem;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  .signals-grid {
    grid-template-columns: 1fr;
  }

  .loop-steps {
    grid-template-columns: 1fr;
  }

  .loop-step {
    border-left: none;
    border-top: 2px solid var(--border);
    padding: 1.5rem 0;
  }

  .loop-step:hover {
    border-left-color: transparent;
    border-top-color: var(--accent);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .footer-location {
    margin-left: 0;
  }
}