:root {
  --bg: #060d1a;
  --bg-card: #0a1628;
  --bg-card-hover: #0f1f38;
  --fg: #e8f4f0;
  --fg-dim: #7a9aaa;
  --accent: #00ff88;
  --accent-dim: rgba(0, 255, 136, 0.15);
  --accent-warn: #f59e0b;
  --accent-critical: #ef4444;
  --font-head: 'Space Grotesk', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --radius: 6px;
}

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

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

/* NAV */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  border-bottom: 1px solid rgba(0,255,136,0.1);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.02em;
}
.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 64px;
  padding: 80px 48px 64px;
  max-width: 1280px;
  margin: 0 auto;
  align-items: center;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hero-left h1 {
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero-lede {
  font-size: 17px;
  color: var(--fg-dim);
  max-width: 480px;
  line-height: 1.65;
  margin-bottom: 40px;
}
.hero-stat-row {
  display: flex;
  gap: 40px;
}
.hero-stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.hero-stat-label {
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* FLEET MONITOR */
.fleet-monitor {
  background: var(--bg-card);
  border: 1px solid rgba(0,255,136,0.2);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--font-mono);
}
.fleet-monitor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(0,255,136,0.1);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
}
.live-badge {
  background: var(--accent);
  color: var(--bg);
  font-size: 9px;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: 2px;
  letter-spacing: 0.08em;
}
.fleet-monitor-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.vehicle-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.vehicle-id {
  font-size: 11px;
  color: var(--fg-dim);
  width: 50px;
  flex-shrink: 0;
}
.health-bar {
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
  flex: 1;
  max-width: 180px;
}
.vehicle-status {
  font-size: 9px;
  letter-spacing: 0.1em;
  padding: 2px 6px;
  border-radius: 2px;
  flex-shrink: 0;
}
.vehicle-status.ok { background: rgba(0,255,136,0.15); color: var(--accent); }
.vehicle-status.warning { background: rgba(245,158,11,0.15); color: var(--accent-warn); }
.vehicle-status.critical { background: rgba(239,68,68,0.15); color: var(--accent-critical); }
.alert-strip {
  margin-top: 8px;
  padding: 10px 12px;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 4px;
  font-size: 11px;
  color: var(--accent-critical);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* METRICS */
.metrics {
  padding: 64px 48px;
  max-width: 1280px;
  margin: 0 auto;
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.metric-card {
  background: var(--bg-card);
  border: 1px solid rgba(0,255,136,0.1);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.2s;
}
.metric-card:hover { border-color: rgba(0,255,136,0.3); }
.metric-icon {
  margin-bottom: 16px;
  opacity: 0.8;
}
.metric-value {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.metric-desc {
  font-size: 13px;
  color: var(--fg-dim);
  line-height: 1.6;
}

/* MONITORING */
.monitoring {
  padding: 80px 48px;
  border-top: 1px solid rgba(0,255,136,0.08);
  border-bottom: 1px solid rgba(0,255,136,0.08);
  background: linear-gradient(180deg, var(--bg) 0%, rgba(10,22,40,0.5) 100%);
}
.monitoring-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 64px;
  align-items: start;
}
.section-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.monitoring-left h2 {
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 20px;
}
.monitoring-left p {
  font-size: 15px;
  color: var(--fg-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}
.log-feed {
  background: var(--bg-card);
  border: 1px solid rgba(0,255,136,0.15);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 12px;
}
.log-entry {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.log-entry:last-child { border-bottom: none; }
.log-time {
  color: var(--fg-dim);
  font-size: 11px;
  flex-shrink: 0;
  width: 60px;
}
.log-msg { color: var(--fg); line-height: 1.5; }
.log-entry.ok .log-msg { color: var(--fg); }
.log-entry.warn .log-msg { color: var(--accent-warn); }
.log-entry.critical .log-msg { color: var(--accent-critical); }
.log-entry.info .log-msg { color: var(--fg-dim); }

/* RESPONSE */
.response {
  padding: 80px 48px;
  max-width: 1280px;
  margin: 0 auto;
}
.response-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.response-text h2 {
  font-size: clamp(26px, 2.5vw, 34px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 20px;
}
.response-text p {
  font-size: 15px;
  color: var(--fg-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}
.response-cases {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.case {
  background: var(--bg-card);
  border: 1px solid rgba(0,255,136,0.1);
  border-radius: var(--radius);
  padding: 20px;
}
.case-label {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 8px;
}
.case-detail {
  font-size: 13px;
  color: var(--fg-dim);
  line-height: 1.6;
}

/* CLOSING */
.closing {
  padding: 96px 48px 80px;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.closing h2 {
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 24px;
}
.closing p {
  font-size: 16px;
  color: var(--fg-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}

/* FOOTER */
footer {
  border-top: 1px solid rgba(0,255,136,0.08);
  padding: 32px 48px;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
}
.footer-inner p {
  font-size: 13px;
  color: var(--fg-dim);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; gap: 40px; }
  .hero-right { order: -1; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .monitoring-inner { grid-template-columns: 1fr; }
  .response-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav, .hero, .metrics, .monitoring, .response, .closing, footer { padding-left: 24px; padding-right: 24px; }
  .metrics-grid { grid-template-columns: 1fr; }
  .hero-stat-row { gap: 24px; }
}