:root {
  --bg: #0a0e17;
  --bg-surface: #111827;
  --bg-card: #151d2e;
  --fg: #e2e8f0;
  --fg-muted: #8892a8;
  --accent: #22c55e;
  --accent-dim: rgba(34, 197, 94, 0.12);
  --accent-glow: rgba(34, 197, 94, 0.25);
  --red: #ef4444;
  --yellow: #eab308;
  --blue: #3b82f6;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --max-w: 1100px;
}

* { 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 {
  padding: 80px 24px 60px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 20px;
  font-weight: 500;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.lede {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 28px;
}

.cta-btn {
  display: inline-block;
  background: var(--accent);
  color: #000;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 12px 28px;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity 0.15s, transform 0.15s;
}
.cta-btn:hover { opacity: 0.88; transform: translateY(-1px); }

/* ─── TERMINAL ─── */
.hero-terminal {
  background: var(--bg-surface);
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
  box-shadow: 0 0 60px rgba(34, 197, 94, 0.06);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

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

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

.terminal-title {
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg-muted);
}

.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 2;
}

.terminal-line {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.t-time {
  color: var(--fg-muted);
  margin-right: 8px;
}

.t-label {
  color: var(--accent);
  font-weight: 500;
  margin-right: 8px;
}

.t-alert {
  color: var(--yellow);
  font-weight: 500;
  margin-right: 8px;
}

.t-info {
  color: var(--blue);
  font-weight: 500;
  margin-right: 8px;
}

.t-warn {
  color: var(--red);
  font-weight: 500;
  margin-right: 8px;
}

.blink {
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ─── SIGNAL STRIP ─── */
.signal-strip {
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  background: var(--bg-surface);
  padding: 36px 24px;
}

.signal-content {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: center;
  gap: 48px;
  align-items: center;
}

.signal-stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 4px;
  display: block;
}

.signal-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.08);
}

/* ─── FEATURES ─── */
.features {
  padding: 80px 24px;
}

.features-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.features-inner h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 32px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: var(--accent-glow);
}

.feature-icon {
  font-size: 1.4rem;
  margin-bottom: 16px;
  display: inline-block;
  width: 44px;
  height: 44px;
  line-height: 44px;
  text-align: center;
  background: var(--accent-dim);
  border-radius: 10px;
  color: var(--accent);
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ─── HOW / COMPARISON ─── */
.how {
  padding: 80px 24px;
  background: var(--bg-surface);
}

.how-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.how-inner h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

.comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.compare-col {
  border-radius: 12px;
  padding: 32px;
}

.compare-col.old {
  background: rgba(239, 68, 68, 0.04);
  border: 1px solid rgba(239, 68, 68, 0.15);
}

.compare-col.new {
  background: var(--accent-dim);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.compare-header {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.old .compare-header { color: var(--red); }
.new .compare-header { color: var(--accent); }

.compare-col ul {
  list-style: none;
}

.compare-col li {
  font-size: 0.9rem;
  color: var(--fg-muted);
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
}

.old li::before {
  content: '\2715';
  position: absolute;
  left: 0;
  color: var(--red);
  font-size: 0.75rem;
}

.new li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ─── CLOSING ─── */
.closing {
  padding: 100px 24px;
  text-align: center;
}

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

.closing h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

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

/* ─── FOOTER ─── */
.site-footer {
  padding: 32px 24px;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.footer-note {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .hero { padding: 48px 20px 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .feature-grid { grid-template-columns: 1fr; }
  .comparison { grid-template-columns: 1fr; }
  .signal-content { flex-wrap: wrap; gap: 24px; }
  .signal-divider { display: none; }
  .signal-stat { flex: 1 1 40%; }
  .terminal-line { font-size: 0.7rem; }
}