:root {
  --bg: #050e07;
  --surface: #0a1a10;
  --surface2: #0f2218;
  --green-deep: #1a4d2e;
  --green-mid: #2a7a4a;
  --lime: #b8ff57;
  --lime-dim: #8bc94a;
  --text: #dff0e3;
  --text-mid: #8ab89a;
  --text-muted: #4a7055;
  --border: rgba(184, 255, 87, 0.12);
  --font-display: 'Syne', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
}

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


html { scroll-behavior: smooth; }


body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}


/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 14, 7, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--lime);
  letter-spacing: -0.02em;
}
.nav-tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
}

/* HERO */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 2rem 4rem;
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero-kicker {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--lime);
  font-weight: 600;
  margin-bottom: 1.25rem;
  font-family: var(--font-body);
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 5vw, 4.25rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 1.5rem;
}
.hero-sub {
  font-size: 1.0625rem;
  color: var(--text-mid);
  line-height: 1.7;
  max-width: 440px;
  font-weight: 300;
}

/* Signal field visualization */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
}
.signal-field {
  position: relative;
  width: 100%;
  height: 360px;
}
.signal-lines line {
  stroke: var(--green-mid);
  stroke-width: 1;
  stroke-dasharray: 4 6;
  opacity: 0.3;
  animation: dash-march 3s linear infinite;
}
@keyframes dash-march {
  to { stroke-dashoffset: -20; }
}
.node {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green-mid);
  transform: translate(-50%, -50%);
  animation: node-pulse 2.5s ease-in-out infinite;
}
.node-1 { top: 20%; left: 20%; animation-delay: 0s; }
.node-2 { top: 15%; left: 80%; animation-delay: 0.3s; }
.node-3 { top: 37%; left: 12%; animation-delay: 0.6s; }
.node-4 { top: 35%; left: 88%; animation-delay: 0.9s; }
.node-5 { top: 65%; left: 15%; animation-delay: 1.2s; }
.node-6 { top: 68%; left: 85%; animation-delay: 1.5s; }
.node-7 { top: 80%; left: 28%; animation-delay: 1.8s; }
.node-8 { top: 78%; left: 72%; animation-delay: 2.1s; }
@keyframes node-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
  50% { transform: translate(-50%, -50%) scale(2.5); opacity: 0.15; }
}
.hub-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--lime);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 0 rgba(184, 255, 87, 0.4);
  animation: hub-ring 2s ease-out infinite;
}
@keyframes hub-ring {
  0% { box-shadow: 0 0 0 0 rgba(184, 255, 87, 0.5); }
  70% { box-shadow: 0 0 0 18px rgba(184, 255, 87, 0); }
  100% { box-shadow: 0 0 0 0 rgba(184, 255, 87, 0); }
}

.status-panel {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 200px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.status-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}
.status-dot.live {
  background: #4ade80;
  box-shadow: 0 0 6px rgba(74, 222, 128, 0.6);
  animation: live-blink 1.5s ease-in-out infinite;
}
@keyframes live-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.status-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #4ade80;
}
.status-metric {
  display: flex;
  flex-direction: column;
}
.metric-val {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.375rem;
  color: var(--lime);
  line-height: 1;
}
.metric-label {
  font-size: 0.625rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.2rem;
}

/* PROBLEM */
.problem {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.problem-inner {
  max-width: 780px;
  margin: 0 auto;
  padding: 4rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.problem-text {
  font-size: 1.125rem;
  color: var(--text-mid);
  line-height: 1.75;
  font-weight: 300;
}

/* HOW IT WORKS */
.how-it-works {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 2rem;
}
.section-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--lime);
  font-weight: 600;
  margin-bottom: 1rem;
  font-family: var(--font-body);
}
.section-headline {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 3rem;
  line-height: 1.15;
}
.loop-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5px;
  background: var(--border);
  border: 1.5px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.loop-card {
  background: var(--bg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.loop-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.7rem;
  color: var(--lime);
  letter-spacing: 0.1em;
  opacity: 0.6;
}
.loop-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  letter-spacing: -0.02em;
}
.loop-desc {
  font-size: 0.9375rem;
  color: var(--text-mid);
  line-height: 1.7;
  font-weight: 300;
}

/* FEATURES */
.features {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem 5rem;
}
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.feature-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.feature-item:first-child { border-top: 1px solid var(--border); }
.feature-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--surface2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  flex-shrink: 0;
}
.feature-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  letter-spacing: -0.01em;
  margin-bottom: 0.4rem;
}
.feature-desc {
  font-size: 0.9375rem;
  color: var(--text-mid);
  line-height: 1.7;
  font-weight: 300;
}

/* OUTCOMES */
.outcomes {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.outcomes-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 2rem;
}
.outcome-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
}
.outcome-block {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.outcome-stat {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  color: var(--lime);
  letter-spacing: -0.04em;
  line-height: 1;
}
.outcome-note {
  font-size: 0.875rem;
  color: var(--text-mid);
  line-height: 1.6;
  font-weight: 300;
}

/* CLOSING */
.closing {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 2rem 6rem;
}
.closing-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 700px;
}
.closing-statement {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.875rem;
  color: var(--lime);
}
.footer-sep, .footer-tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero-content { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-visual { min-height: 260px; }
  .status-panel { width: 160px; font-size: 0.8rem; }
  .loop-grid { grid-template-columns: 1fr; }
  .outcome-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-item { grid-template-columns: 44px 1fr; }
  .hero { padding: 3rem 1.5rem 3rem; }
  .how-it-works, .features, .closing { padding-left: 1.5rem; padding-right: 1.5rem; }
  .problem-inner, .outcomes-inner { padding-left: 1.5rem; padding-right: 1.5rem; }
}
@media (max-width: 480px) {
  .outcome-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .hero-sub { font-size: 0.9375rem; }
}