:root {
  --bg: #0f0f0f;
  --bg-2: #161616;
  --fg: #f0ede6;
  --fg-muted: #8a8680;
  --accent: #D4FF3A;
  --accent-dim: rgba(212, 255, 58, 0.08);
  --border: rgba(240, 237, 230, 0.1);
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans: 'DM Sans', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
  background: rgba(15, 15, 15, 0.85);
  backdrop-filter: blur(12px);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
}
.nav-logo {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg);
}
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--fg); }

/* HERO */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 80px;
  padding: 140px 48px 80px;
  max-width: 1200px;
  margin: 0 auto;
}
.hero-inner { max-width: 680px; }
.hero-label {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}
.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(48px, 6vw, 80px);
  line-height: 1.08;
  font-weight: 400;
  color: var(--fg);
  margin-bottom: 32px;
}
.hero-headline em { font-style: italic; color: var(--accent); }
.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.65;
  margin-bottom: 40px;
  max-width: 520px;
}
.hero-divider {
  width: 48px;
  height: 1px;
  background: var(--border);
  margin-bottom: 28px;
}
.hero-cred {
  font-size: 15px;
  color: var(--fg-muted);
  font-style: italic;
  font-family: var(--font-serif);
}

/* SIGNAL RINGS */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 300px;
  height: 300px;
  flex-shrink: 0;
}
.signal-rings {
  position: relative;
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--accent);
  opacity: 0.12;
  animation: pulse 4s ease-in-out infinite;
}
.ring-1 { width: 80px; height: 80px; animation-delay: 0s; }
.ring-2 { width: 140px; height: 140px; animation-delay: 0.5s; }
.ring-3 { width: 200px; height: 200px; animation-delay: 1s; }
.ring-4 { width: 260px; height: 260px; animation-delay: 1.5s; }
.ring-center {
  position: relative;
  z-index: 2;
  width: 56px;
  height: 56px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
@keyframes pulse {
  0%, 100% { opacity: 0.12; transform: scale(1); }
  50% { opacity: 0.25; transform: scale(1.03); }
}

/* SECTION EYEBROW */
.section-eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 16px;
}

/* HOW IT WORKS */
.how {
  padding: 120px 48px;
  max-width: 1200px;
  margin: 0 auto;
}
.how-header {
  margin-bottom: 72px;
}
.how-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 400;
  color: var(--fg);
}
.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}
.step {
  flex: 1;
  padding: 40px;
  border: 1px solid var(--border);
  background: var(--bg-2);
}
.step-num {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 20px;
}
.step h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  color: var(--fg);
  margin-bottom: 14px;
}
.step p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}
.step-connector {
  width: 48px;
  height: 1px;
  background: var(--border);
  margin-top: 60px;
  flex-shrink: 0;
}

/* CHANNELS */
.channels {
  padding: 120px 48px;
  background: var(--bg-2);
}
.channels-header {
  max-width: 1200px;
  margin: 0 auto 64px;
}
.channels-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 400;
  margin-bottom: 16px;
}
.channels-header p {
  color: var(--fg-muted);
  font-size: 17px;
  max-width: 560px;
  line-height: 1.65;
}
.channel-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  max-width: 1200px;
  margin: 0 auto;
  background: var(--border);
  border: 1px solid var(--border);
}
.channel-card {
  padding: 40px 32px;
  background: var(--bg-2);
}
.channel-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 24px;
}
.channel-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  margin-bottom: 4px;
}
.channel-type {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.channel-card p:last-child {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* PHILOSOPHY */
.philosophy {
  padding: 120px 48px;
}
.philosophy-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
}
.philosophy-block {
  padding: 64px;
  background: var(--bg);
}
.accent-block {
  background: var(--accent-dim);
}
.philosophy-block p {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.75;
}
.accent-block p { color: var(--fg); }

/* CLOSING */
.closing {
  padding: 120px 48px;
  background: var(--bg-2);
}
.closing-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.closing-statement {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.5vw, 44px);
  font-weight: 400;
  font-style: italic;
  color: var(--fg);
  line-height: 1.4;
}

/* FOOTER */
footer {
  padding: 48px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo {
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.footer-inner p {
  font-size: 14px;
  color: var(--fg-muted);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  nav { padding: 16px 24px; }
  .hero {
    grid-template-columns: 1fr;
    padding: 120px 24px 80px;
    gap: 48px;
  }
  .hero-visual { display: none; }
  .how, .channels, .philosophy, .closing { padding: 80px 24px; }
  .steps { flex-direction: column; }
  .step-connector { width: 1px; height: 32px; margin: 0 auto; }
  .channel-grid { grid-template-columns: 1fr 1fr; }
  .philosophy-grid { grid-template-columns: 1fr; }
  .philosophy-block { padding: 40px 32px; }
  .footer-inner { flex-direction: column; gap: 16px; }
}
@media (max-width: 600px) {
  .nav-links { display: none; }
  .channel-grid { grid-template-columns: 1fr; }
  .hero-headline { font-size: 42px; }
}