:root {
  --bg: #0a0b0f;
  --bg-elevated: #12141a;
  --bg-card: #161820;
  --fg: #e8eaed;
  --fg-muted: #8b8f9a;
  --accent: #00e676;
  --accent-dim: #00c853;
  --red: #ff5252;
  --yellow: #ffd740;
  --blue: #448aff;
  --border: #1e2028;
  --font-body: 'Space Grotesk', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 5vw;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(0, 230, 118, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(68, 138, 255, 0.03) 0%, transparent 40%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
  max-width: 1300px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  border: 1px solid rgba(0, 230, 118, 0.3);
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.highlight {
  color: var(--accent);
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 480px;
  line-height: 1.7;
}

/* Terminal */
.hero-terminal {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
}

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

.terminal-dot.red { background: var(--red); }
.terminal-dot.yellow { background: var(--yellow); }
.terminal-dot.green { background: var(--accent); }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
  margin-left: 8px;
}

.terminal-body {
  padding: 20px 18px;
}

.signal-line {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.signal-line:last-child {
  border-bottom: none;
}

.signal-time {
  color: var(--fg-muted);
  min-width: 38px;
}

.signal-up {
  color: var(--accent);
  font-size: 0.7rem;
}

.signal-down {
  color: var(--red);
  font-size: 0.7rem;
}

.signal-alert {
  color: var(--yellow);
  font-weight: 700;
  min-width: 14px;
  text-align: center;
}

.signal-action {
  color: var(--bg);
  background: var(--accent);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.65rem;
  font-weight: 600;
}

.signal-card {
  color: var(--fg);
  flex: 1;
}

.signal-price {
  color: var(--accent);
}

.signal-tag {
  color: var(--yellow);
  font-size: 0.65rem;
  border: 1px solid rgba(255, 215, 64, 0.3);
  padding: 2px 6px;
  border-radius: 3px;
}

.signal-reason {
  color: var(--fg-muted);
  font-size: 0.7rem;
}

/* Stats */
.signal-section {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 50px 5vw;
}

.signal-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--fg);
  font-family: var(--font-mono);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* Features */
.features {
  padding: 120px 5vw;
  max-width: 1200px;
  margin: 0 auto;
}

.features-header {
  margin-bottom: 64px;
}

.features-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
}

.features-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 560px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(0, 230, 118, 0.2);
}

.feature-card.featured {
  border-color: rgba(0, 230, 118, 0.3);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 230, 118, 0.03) 100%);
}

.feature-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* How Section */
.how-section {
  padding: 100px 5vw;
  border-top: 1px solid var(--border);
  max-width: 900px;
  margin: 0 auto;
}

.how-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 56px;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.how-step {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  border: 1px solid rgba(0, 230, 118, 0.3);
  padding: 6px 10px;
  border-radius: 6px;
  min-width: 40px;
  text-align: center;
  margin-top: 2px;
}

.step-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Closing */
.closing {
  padding: 120px 5vw;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(0, 230, 118, 0.05) 0%, transparent 60%);
  pointer-events: none;
}

.closing-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}

.closing-text {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.8;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 5vw;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 0.85rem;
}

.footer-brand {
  font-weight: 600;
  color: var(--fg);
}

.footer-divider {
  color: var(--fg-muted);
}

.footer-tagline {
  color: var(--fg-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero {
    min-height: auto;
    padding: 60px 5vw;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .signal-stats {
    gap: 24px;
  }
  
  .stat-divider {
    display: none;
  }
  
  .signal-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  
  .signal-line {
    font-size: 0.7rem;
    gap: 8px;
  }
  
  .signal-price,
  .signal-reason {
    display: none;
  }
}

@media (max-width: 500px) {
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .how-step {
    flex-direction: column;
    gap: 12px;
  }
}