:root {
  --bg: #0c0e14;
  --bg-alt: #13161f;
  --surface: #1a1e2a;
  --surface-raised: #222737;
  --accent: #00c9a7;
  --accent-dim: rgba(0, 201, 167, 0.15);
  --accent-glow: rgba(0, 201, 167, 0.4);
  --text: #e8ecf4;
  --text-dim: #8a94a8;
  --text-muted: #5a6278;
  --border: #252a3a;
  --high: #ff5c5c;
  --wave-color: rgba(0, 201, 167, 0.3);
  --wave-color2: rgba(0, 201, 167, 0.15);
}

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

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Instrument Sans', system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-raised); border-radius: 3px; }

/* Nav */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(12, 14, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-mark {
  color: var(--accent);
  font-size: 1.25rem;
}

.brand-name {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--accent-glow); }
  50% { opacity: 0.6; box-shadow: 0 0 16px var(--accent-glow); }
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 48px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0, 201, 167, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}

.tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--text);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-dim);
  line-height: 1.7;
  max-width: 460px;
}

/* Signal Display */
.hero-visual {
  position: relative;
}

.signal-display {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255,255,255,0.03);
}

.signal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}

.signal-title {
  font-family: 'Syne', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.signal-badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 3px 8px;
  border-radius: 4px;
}

.signal-wave {
  padding: 16px 20px 8px;
  background: var(--surface);
}

.signal-wave svg {
  width: 100%;
  height: 60px;
}

.wave {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
}

.wave-1 {
  stroke: var(--accent);
  animation: wave-draw 3s ease-in-out infinite;
}

.wave-2 {
  stroke: rgba(0, 201, 167, 0.4);
  animation: wave-draw 3s ease-in-out infinite 0.5s;
}

@keyframes wave-draw {
  0%, 100% { d: path("M0,40 C20,20 40,60 60,40 C80,20 100,50 120,40 C140,30 160,55 180,40 C200,25 220,60 240,40 C260,20 280,55 300,40 C320,25 340,50 360,40 C380,30 400,45 400,40 L400,80 L0,80 Z"); }
  50% { d: path("M0,40 C30,60 50,20 80,40 C110,60 130,25 160,40 C190,55 210,20 240,40 C270,60 290,25 320,40 C350,55 380,30 400,40 L400,80 L0,80 Z"); }
}

.signal-events {
  padding: 12px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.event {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.82rem;
  transition: background 0.2s;
}

.event:hover { background: var(--surface-raised); }

.event-new {
  background: rgba(255, 92, 92, 0.08);
  border: 1px solid rgba(255, 92, 92, 0.2);
}

.event-time {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.event-text { color: var(--text-dim); }

.event-badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--high);
  background: rgba(255, 92, 92, 0.12);
  padding: 2px 7px;
  border-radius: 3px;
}

/* Hero metrics */
.hero-metrics {
  display: flex;
  align-items: center;
  gap: 40px;
  max-width: 1280px;
  margin: 60px auto 0;
  width: 100%;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.metric { display: flex; flex-direction: column; gap: 4px; }

.metric-value {
  font-family: 'Syne', sans-serif;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.metric-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* Sections */
.section-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 64px;
  color: var(--text);
}

/* How it works */
.how-it-works {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.step { position: relative; }

.step-number {
  font-family: 'Syne', sans-serif;
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--surface-raised);
  line-height: 1;
  margin-bottom: 20px;
  letter-spacing: -0.04em;
}

.step h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.step p {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.7;
}

/* Outcomes */
.outcomes {
  padding: 120px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.outcomes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 80px;
}

.outcome {}

.outcome-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.outcome h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.outcome p {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.7;
}

/* Philosophy */
.philosophy {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.philosophy-content {
  max-width: 800px;
}

.philosophy-quote {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--text);
  font-style: normal;
  margin-bottom: 20px;
}

.philosophy-attr {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Closing */
.closing {
  padding: 140px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.closing-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  color: var(--text);
}

.closing-sub {
  font-size: 1.1rem;
  color: var(--text-dim);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Footer */
.footer {
  padding: 60px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.footer-brand { display: flex; align-items: center; gap: 8px; }

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .nav { padding: 16px 24px; }
  .hero { padding: 100px 24px 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { order: -1; }
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .outcomes-grid { grid-template-columns: 1fr; }
  .hero-metrics { gap: 24px; }
  .section-inner { padding: 0 24px; }
  .footer-inner { padding: 0 24px; }
}

@media (max-width: 480px) {
  .hero-metrics { flex-direction: column; align-items: flex-start; gap: 20px; }
  .metric-divider { display: none; }
  .event { grid-template-columns: 50px 1fr; }
  .event-badge { display: none; }
}