/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary: #060D18;
  --bg-secondary: #0B1525;
  --bg-card: #0F1D30;
  --fg-primary: #E8E4D9;
  --fg-secondary: #8A9BB5;
  --fg-muted: #4A6080;
  --accent-gold: #C8922A;
  --accent-gold-dim: rgba(200,146,42,0.15);
  --accent-cyan: #00D4FF;
  --accent-cyan-dim: rgba(0,212,255,0.12);
  --border-subtle: rgba(255,255,255,0.06);
  --border-mid: rgba(255,255,255,0.1);
  --signal-hot: #E8642A;
  --signal-warm: #C8922A;
  --signal-cold: #4A6080;
}

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

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4 {
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

em { font-style: italic; color: var(--accent-gold); }

/* === NAV === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(6,13,24,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.15rem;
  color: var(--fg-primary);
  letter-spacing: -0.01em;
}

.nav-tagline {
  font-size: 0.75rem;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  background:
    radial-gradient(ellipse 60% 50% at 80% 30%, rgba(200,146,42,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(0,212,255,0.04) 0%, transparent 60%),
    var(--bg-primary);
}

.hero-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-eyebrow {
  font-size: 0.75rem;
  color: var(--accent-gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 20px;
}

.hero-headline {
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  color: var(--fg-primary);
  margin-bottom: 24px;
  line-height: 1.05;
}

.hero-lede {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 40px;
}

.hero-pillars {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pillar {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.pillar-icon {
  width: 36px;
  height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.pillar-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 3px;
}

.pillar-desc {
  font-size: 0.82rem;
  color: var(--fg-secondary);
  line-height: 1.5;
}

/* === SIGNAL BOARD === */
.signal-board {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.signal-board-label {
  padding: 14px 20px;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(255,255,255,0.02);
}

.signal-rows { padding: 8px 0; }

.signal-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  transition: background 0.2s;
}

.signal-row:hover { background: rgba(255,255,255,0.03); }

.signal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--fg-muted);
  flex-shrink: 0;
}

.signal-row--hot .signal-dot,
.signal-dot--pulse {
  background: var(--signal-hot);
  box-shadow: 0 0 8px var(--signal-hot);
  animation: pulse-dot 2s infinite;
}

.signal-row--warm .signal-dot,
.signal-dot--active {
  background: var(--signal-warm);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

.signal-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.signal-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg-primary);
}

.signal-meta {
  font-size: 0.72rem;
  color: var(--fg-secondary);
}

.signal-tag {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 100px;
  background: rgba(255,255,255,0.06);
  color: var(--fg-muted);
  white-space: nowrap;
}

.signal-tag--hot {
  background: rgba(232,100,42,0.2);
  color: #E8642A;
  border: 1px solid rgba(232,100,42,0.3);
}

.signal-tag--warm {
  background: var(--accent-gold-dim);
  color: var(--accent-gold);
  border: 1px solid rgba(200,146,42,0.25);
}

.signal-board-footer {
  display: flex;
  justify-content: space-between;
  padding: 12px 20px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.7rem;
  color: var(--fg-muted);
}

.signal-status { color: var(--accent-cyan); font-weight: 500; }

/* === METRIC CARDS === */
.metric-cards {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: 12px;
  padding: 20px 16px;
  text-align: center;
}

.metric-card--gold { border-color: rgba(200,146,42,0.3); background: rgba(200,146,42,0.05); }

.metric-value {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.8rem;
  color: var(--fg-primary);
  line-height: 1;
  margin-bottom: 6px;
}

.metric-card--gold .metric-value { color: var(--accent-gold); }

.metric-label {
  font-size: 0.68rem;
  color: var(--fg-muted);
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

/* === HOW IT WORKS === */
.how-it-works {
  padding: 120px 40px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
}

.section-header {
  max-width: 1200px;
  margin: 0 auto 72px;
}

.section-eyebrow {
  font-size: 0.75rem;
  color: var(--accent-gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  color: var(--fg-primary);
}

.process-flow {
  max-width: 1200px;
  margin: 0 auto 80px;
  display: flex;
  align-items: flex-start;
  gap: 24px;
}

.process-step {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: 16px;
  padding: 28px;
  position: relative;
}

.process-num {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 3rem;
  color: rgba(200,146,42,0.15);
  line-height: 1;
  margin-bottom: 16px;
  font-style: italic;
}

.process-step h3 {
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.process-step p {
  font-size: 0.85rem;
  color: var(--fg-secondary);
  line-height: 1.65;
}

.process-arrow {
  display: flex;
  align-items: center;
  padding-top: 40px;
  flex-shrink: 0;
}

.capability-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  overflow: hidden;
}

.capability {
  background: var(--bg-card);
  padding: 32px 28px;
}

.capability-icon {
  width: 44px;
  height: 44px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-mid);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.capability h4 {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.capability p {
  font-size: 0.8rem;
  color: var(--fg-secondary);
  line-height: 1.6;
}

/* === MANIFESTO === */
.manifesto {
  padding: 120px 40px;
  background:
    radial-gradient(ellipse 50% 60% at 50% 50%, rgba(200,146,42,0.05) 0%, transparent 70%),
    var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
}

.manifesto-inner {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.manifesto-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  font-weight: 500;
  margin-bottom: 36px;
}

.manifesto-quote {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  color: var(--fg-primary);
  font-style: italic;
  line-height: 1.35;
  margin-bottom: 32px;
  quotes: "\201C" "\201D";
}

.manifesto-quote::before { content: open-quote; }
.manifesto-quote::after { content: close-quote; }

.manifesto-body {
  font-size: 1rem;
  color: var(--fg-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
}

.manifesto-stats {
  display: flex;
  justify-content: center;
  gap: 64px;
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--border-subtle);
}

.m-stat-num {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 2.4rem;
  color: var(--accent-gold);
  line-height: 1;
  margin-bottom: 8px;
}

.m-stat-desc {
  font-size: 0.78rem;
  color: var(--fg-muted);
  line-height: 1.5;
  max-width: 140px;
}

/* === CLOSING === */
.closing {
  padding: 120px 40px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
}

.closing-inner {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.closing-headline {
  font-size: clamp(2rem, 3.5vw, 3rem);
  color: var(--fg-primary);
  margin-bottom: 20px;
  line-height: 1.1;
}

.closing-sub {
  font-size: 1rem;
  color: var(--fg-secondary);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 64px;
}

.closing-visual {
  display: flex;
  justify-content: center;
  margin-bottom: 64px;
}

.closing-diagram {
  display: flex;
  align-items: center;
  gap: 0;
}

.diagram-node {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: 12px;
  padding: 20px 24px;
  text-align: center;
  min-width: 180px;
}

.diagram-node--core {
  border-color: rgba(200,146,42,0.4);
  background: rgba(200,146,42,0.05);
}

.diagram-node--output {
  border-color: rgba(0,212,255,0.3);
  background: rgba(0,212,255,0.05);
}

.node-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 4px;
}

.node-sub {
  font-size: 0.72rem;
  color: var(--fg-muted);
}

.diagram-arrow {
  padding: 0 8px;
}

.closing-statement {
  max-width: 680px;
  margin: 0 auto;
  padding: 36px 48px;
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: 16px;
  border-left: 3px solid var(--accent-gold);
}

.closing-statement p {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.15rem;
  color: var(--fg-secondary);
  font-style: italic;
  line-height: 1.55;
}

/* === FOOTER === */
.footer {
  padding: 48px 40px;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-primary);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1rem;
  color: var(--fg-primary);
  margin-bottom: 10px;
}

.footer-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.72rem;
  color: var(--fg-muted);
}

.footer-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--fg-muted);
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { order: -1; }
  .process-flow { flex-direction: column; }
  .process-arrow { display: none; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .manifesto-stats { gap: 32px; flex-wrap: wrap; justify-content: center; }
  .closing-diagram { flex-direction: column; gap: 0; }
  .diagram-arrow { display: none; }
  .footer-inner { flex-direction: column; gap: 24px; text-align: center; }
  .metric-cards { grid-template-columns: 1fr 1fr; }
  .metric-card:last-child { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .hero { padding: 100px 24px 60px; }
  .how-it-works, .manifesto, .closing { padding: 80px 24px; }
  .capability-grid { grid-template-columns: 1fr; }
  .nav-inner { padding: 0 24px; }
  .manifesto-stats { flex-direction: column; align-items: center; gap: 24px; }
}