:root {
  --bg: #0a0b0f;
  --bg-elevated: #12131a;
  --bg-card: #16171f;
  --bg-card-hover: #1c1d27;
  --fg: #e8e9ed;
  --fg-muted: #7a7d8a;
  --fg-dim: #4a4d5a;
  --accent: #00e676;
  --accent-dim: rgba(0, 230, 118, 0.15);
  --red: #ff3d57;
  --red-dim: rgba(255, 61, 87, 0.15);
  --border: #1e2030;
  --border-accent: rgba(0, 230, 118, 0.3);
  --font-body: '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-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 70vw;
  height: 70vw;
  background: radial-gradient(ellipse at center, rgba(0, 230, 118, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  border: 1px solid var(--border-accent);
  padding: 0.35rem 0.75rem;
  border-radius: 2px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

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

.lede {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 520px;
}

/* Signal Cards */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.signal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  transition: transform 0.2s ease;
}

.signal-card:hover {
  transform: translateY(-2px);
}

.signal-call {
  border-left: 3px solid var(--accent);
}

.signal-put {
  border-left: 3px solid var(--red);
}

.signal-card.faded {
  opacity: 0.7;
}

.signal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.signal-type {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
}

.signal-type.call {
  background: var(--accent-dim);
  color: var(--accent);
}

.signal-type.put {
  background: var(--red-dim);
  color: var(--red);
}

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

.signal-time {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 0.75rem;
}

.signal-indicators {
  font-size: 0.7rem;
  color: var(--fg-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  margin-bottom: 0.75rem;
}

.ind-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.ind-dot.green { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.ind-dot.red { background: var(--red); box-shadow: 0 0 6px var(--red); }

.signal-confidence {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  border-top: 1px solid var(--border);
  padding-top: 0.5rem;
}

/* === SECTIONS === */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

section h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-sub {
  color: var(--fg-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin-bottom: 3rem;
}

/* === INDICATORS === */
.indicators {
  padding: 6rem 0;
  background: var(--bg-elevated);
}

.indicator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.indicator-card {
  background: var(--bg);
  padding: 2rem;
  transition: background 0.2s ease;
}

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

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

.ind-number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-dim);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

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

.indicator-card h3 .params {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 400;
}

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

/* === HOW IT WORKS === */
.how-it-works {
  padding: 6rem 0;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 3rem;
}

.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.step:first-child {
  border-top: 1px solid var(--border);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--fg-dim);
}

.step-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 600px;
}

/* === PAIRS === */
.pairs {
  padding: 6rem 0;
  background: var(--bg-elevated);
}

.pairs-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.pair-chip {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.6rem 1.2rem;
  border-radius: 4px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.pair-chip:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
}

.pair-specs {
  display: flex;
  gap: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.spec {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.spec-label {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.spec-value {
  font-size: 1.4rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--accent);
}

/* === CLOSING === */
.closing {
  padding: 8rem 0;
  text-align: center;
}

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

.closing h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.25rem;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.closing-tagline {
  color: var(--accent) !important;
  font-weight: 500;
  font-size: 1.1rem !important;
  margin-top: 1.5rem !important;
}

/* === FOOTER === */
.site-footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-weight: 600;
  font-size: 0.95rem;
}

.footer-note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-dim);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero {
    padding: 4rem 1.5rem 3rem;
    min-height: auto;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-visual {
    order: -1;
  }

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

  .step {
    grid-template-columns: 50px 1fr;
    gap: 1rem;
  }

  .step-num {
    font-size: 1.4rem;
  }

  .pair-specs {
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .section-inner {
    padding: 0 1.5rem;
  }

  .indicators,
  .pairs,
  .how-it-works {
    padding: 4rem 0;
  }

  .closing {
    padding: 5rem 1.5rem;
  }
}