:root {
  --bg: #0a0a0c;
  --fg: #e8e8e0;
  --fg-dim: #7a7a70;
  --accent: #d4ff00;
  --accent-dim: rgba(212, 255, 0, 0.08);
  --border: rgba(232, 232, 224, 0.08);
  --bull: #00e676;
  --bear: #ff5252;
  --neutral: #888;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ─── NAV ─────────────────────────────────── */
.nav {
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.logo-bracket { color: var(--accent); }
.logo-name { color: var(--fg-dim); }

.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.1em;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--bull);
  box-shadow: 0 0 8px var(--bull);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ─── HERO ────────────────────────────────── */
.hero {
  padding: 80px 48px 60px;
  max-width: 1200px;
  margin: 0 auto;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 24px;
  opacity: 0.8;
}
.hero-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 16px;
  color: var(--fg-dim);
  line-height: 1.7;
  max-width: 460px;
  margin-bottom: 40px;
}
.hero-meta {
  display: flex;
  gap: 32px;
}
.meta-item { display: flex; flex-direction: column; gap: 4px; }
.meta-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
}
.meta-value {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--fg);
}

/* Signal Display */
.signal-display {
  background: rgba(212, 255, 0, 0.03);
  border: 1px solid var(--accent-dim);
  border-radius: 8px;
  padding: 20px;
  font-family: 'IBM Plex Mono', monospace;
}
.signal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.signal-title {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.signal-badge {
  font-size: 9px;
  color: var(--fg-dim);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 3px;
}
.signal-feed { display: flex; flex-direction: column; gap: 6px; }
.feed-row {
  display: grid;
  grid-template-columns: 52px 52px 90px 1fr;
  align-items: center;
  padding: 6px 8px;
  border-radius: 4px;
  font-size: 12px;
  background: rgba(255,255,255,0.02);
}
.feed-row.active { background: var(--accent-dim); }
.feed-time { color: var(--fg-dim); font-size: 11px; }
.feed-asset { font-weight: 600; font-size: 12px; }
.feed-signal { font-weight: 500; font-size: 11px; }
.feed-signal.bull { color: var(--bull); }
.feed-signal.bear { color: var(--bear); }
.feed-signal.neutral { color: var(--neutral); }
.feed-src { color: var(--fg-dim); font-size: 11px; text-align: right; }
.signal-footer {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  font-size: 10px;
  color: var(--fg-dim);
  letter-spacing: 0.05em;
}

/* ─── PULSE ───────────────────────────────── */
.pulse {
  background: var(--accent-dim);
  border-top: 1px solid rgba(212, 255, 0, 0.15);
  border-bottom: 1px solid rgba(212, 255, 0, 0.15);
  padding: 40px 48px;
}
.pulse-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-align: center;
  margin-bottom: 28px;
  opacity: 0.7;
}
.pulse-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  max-width: 900px;
  margin: 0 auto;
}
.pulse-stat { text-align: center; }
.stat-val {
  font-family: 'IBM Plex Mono', monospace;
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
  color: var(--fg);
  line-height: 1;
}
.stat-unit {
  font-size: 0.5em;
  opacity: 0.5;
  margin-left: 2px;
}
.stat-key {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.15em;
  color: var(--fg-dim);
  margin-top: 6px;
}
.pulse-divider {
  width: 1px;
  height: 48px;
  background: rgba(212, 255, 0, 0.2);
}

/* ─── STACK ───────────────────────────────── */
.stack {
  padding: 96px 48px;
  max-width: 1200px;
  margin: 0 auto;
}
.section-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 20px;
  opacity: 0.7;
}
.section-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 56px;
  letter-spacing: -0.02em;
}
.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.stack-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
}
.card-lang {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 8px;
}
.card-name {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 20px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 14px;
  line-height: 1.2;
}
.card-desc {
  font-size: 14px;
  color: var(--fg-dim);
  line-height: 1.65;
  margin-bottom: 20px;
}
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--fg-dim);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  padding: 4px 8px;
  border-radius: 4px;
}

/* ─── EDGE ────────────────────────────────── */
.edge {
  background: rgba(255,255,255,0.01);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 96px 48px;
}
.edge-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.edge-body {
  font-size: 16px;
  color: var(--fg-dim);
  line-height: 1.75;
  margin-bottom: 20px;
}
.edge-body:last-child { margin-bottom: 0; }
.edge-list { display: flex; flex-direction: column; gap: 0; }
.edge-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.edge-item:last-child { border-bottom: none; }
.edge-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  flex-shrink: 0;
}
.edge-text {
  font-size: 15px;
  color: var(--fg);
  line-height: 1.5;
}

/* ─── CLOSING ─────────────────────────────── */
.closing {
  padding: 96px 48px;
  max-width: 1200px;
  margin: 0 auto;
}
.closing-inner { max-width: 640px; }
.closing-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--accent);
  opacity: 0.6;
  margin-bottom: 24px;
}
.closing-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.closing-sub {
  font-size: 15px;
  color: var(--fg-dim);
  margin-bottom: 48px;
}
.closing-divider {
  width: 48px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 28px;
  opacity: 0.4;
}
.closing-note {
  font-size: 12px;
  color: var(--fg-dim);
  opacity: 0.5;
  line-height: 1.6;
  max-width: 480px;
}

/* ─── FOOTER ──────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 48px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--fg-dim);
}
.footer-right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--fg-dim);
  opacity: 0.5;
}
.footer-sep { opacity: 0.4; }

/* ─── RESPONSIVE ─────────────────────────── */
@media (max-width: 900px) {
  .hero-grid,
  .edge-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .stack-grid { grid-template-columns: 1fr; }
  .pulse-stats { flex-wrap: wrap; gap: 28px; }
  .hero, .stack, .edge, .closing { padding: 60px 24px; }
  .nav { padding: 16px 24px; }
  .footer { padding: 20px 24px; }
  .footer-inner { flex-direction: column; gap: 8px; align-items: flex-start; }
}
@media (max-width: 480px) {
  .hero-meta { flex-direction: column; gap: 16px; }
  .pulse-stats { flex-direction: column; gap: 20px; }
  .pulse-divider { display: none; }
  .feed-row { grid-template-columns: 44px 44px 80px 1fr; }
}