:root {
  --bg: #0a0e1a;
  --bg-card: #0f1629;
  --bg-card-hover: #141d38;
  --fg: #e8edf5;
  --fg-muted: #8892a4;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.12);
  --border: rgba(0, 212, 255, 0.15);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* ─── HEADER ─────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 2rem;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 14, 26, 0.9);
  backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--fg);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--accent); }

/* ─── HERO ───────────────────────────────────────────── */
.hero {
  padding: 5rem 2rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero-text h1 {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  color: var(--fg);
}

.hero-lede {
  color: var(--fg-muted);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 420px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.meta-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem;
  border-radius: 3px;
}

.cta-btn {
  display: inline-block;
  background: var(--accent);
  color: #0a0e1a;
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  text-decoration: none;
  transition: opacity 0.2s;
  margin-right: 0.75rem;
  vertical-align: middle;
}
.cta-btn:hover { opacity: 0.85; }

/* ─── MONITOR ────────────────────────────────────────── */
.monitor-frame {
  background: #060b18;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(0, 212, 255, 0.05), 0 20px 60px rgba(0, 0, 0, 0.5);
}

.monitor-topbar {
  background: #0d1220;
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.url-bar {
  margin-left: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-muted);
  background: #0a0e1a;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.monitor-body { padding: 1.25rem; }

.scan-line {
  display: grid;
  grid-template-columns: 70px 90px 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.78rem;
}

.scan-line:last-of-type { border-bottom: none; }

.timestamp {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--fg-muted);
}

.scan-tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent);
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  text-align: center;
}

.scan-text { color: var(--fg-muted); line-height: 1.4; }

.diff {
  font-family: var(--font-mono);
  color: #ff6b6b;
  font-weight: 500;
}

.scan-footer {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--fg-muted);
}

.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #28c840;
  box-shadow: 0 0 0 0 rgba(40, 200, 64, 0.5);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(40, 200, 64, 0.5); }
  70% { box-shadow: 0 0 0 6px rgba(40, 200, 64, 0); }
  100% { box-shadow: 0 0 0 0 rgba(40, 200, 64, 0); }
}

/* ─── LIVE FEED ──────────────────────────────────────── */
.live-feed-section {
  padding: 4rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.live-feed-section h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 2.5rem;
}

.feed-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.feed-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  transition: background 0.2s, border-color 0.2s;
}

.feed-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0, 212, 255, 0.3);
}

.feed-card--large {
  grid-column: 1 / -1;
}

.card-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  margin-bottom: 0.6rem;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--fg);
}

.card-diff {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.old-price {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--fg-muted);
  text-decoration: line-through;
}

.new-price {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 500;
  color: #ff6b6b;
}

.card-ai {
  font-size: 0.8125rem;
  color: var(--accent);
  background: var(--accent-dim);
  border-left: 2px solid var(--accent);
  padding: 0.75rem 1rem;
  border-radius: 0 6px 6px 0;
  line-height: 1.55;
  font-style: italic;
}

/* ─── FEATURES ───────────────────────────────────────── */
.features-section {
  padding: 5rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.features-section h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.75rem;
  transition: border-color 0.2s;
}

.feature-card:hover { border-color: rgba(0, 212, 255, 0.3); }

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ─── HOW ────────────────────────────────────────────── */
.how-section {
  padding: 5rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.how-section h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.steps-row {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.step { flex: 1; }

.step-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  opacity: 0.3;
  margin-bottom: 0.75rem;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step p {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

.step-arrow { color: var(--border); flex-shrink: 0; }

/* ─── CLOSING ────────────────────────────────────────── */
.closing-section {
  padding: 5rem 2rem;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  border-top: 1px solid var(--border);
}

.closing-section h2 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.closing-section p {
  font-size: 1.0625rem;
  color: var(--fg-muted);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.closing-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
}

.divider { color: var(--border); }

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

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--fg-muted);
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--fg-muted);
}

/* ─── RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-text h1 { font-size: 2rem; }

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

  .feed-card--large { grid-column: auto; }

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

  .steps-row {
    flex-direction: column;
    gap: 1.5rem;
  }

  .step-arrow { transform: rotate(90deg); }

  .nav-links { display: none; }

  .closing-section h2 { font-size: 1.75rem; }

  .footer-inner { flex-direction: column; gap: 0.75rem; text-align: center; }

  .scan-line {
    grid-template-columns: 60px 1fr;
  }

  .scan-tag { display: none; }
}

@media (max-width: 480px) {
  .hero { padding: 3rem 1.5rem 2.5rem; }
  .hero-meta { gap: 0.5rem; }
  .features-section, .how-section, .closing-section, .live-feed-section { padding-left: 1.5rem; padding-right: 1.5rem; }
}