:root {
  --bg: #06060a;
  --bg-raised: #0d0d14;
  --bg-card: #111119;
  --fg: #e8e4dd;
  --fg-muted: #7a7672;
  --fg-dim: #4a4845;
  --accent: #F5A623;
  --accent-dim: rgba(245, 166, 35, 0.12);
  --accent-border: rgba(245, 166, 35, 0.3);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--fg-dim) var(--bg);
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* NAV */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 48px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: linear-gradient(to bottom, rgba(6,6,10,0.95) 0%, transparent 100%);
  backdrop-filter: blur(4px);
}
.nav-wordmark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--fg);
}
.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.status-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--fg-muted);
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 48px 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60%;
  height: 120%;
  background: radial-gradient(ellipse at center, rgba(245,166,35,0.04) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: 680px;
  position: relative;
  z-index: 2;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 32px;
  text-transform: uppercase;
}
.eyebrow-line {
  display: block;
  width: 32px;
  height: 1px;
  background: var(--accent);
}
.hero-headline {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(42px, 6.5vw, 80px);
  line-height: 1.04;
  color: var(--fg);
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.65;
  color: var(--fg-muted);
  max-width: 520px;
  margin-bottom: 40px;
}
.hero-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border: 1px solid var(--accent-border);
  border-radius: 2px;
  color: var(--accent);
  background: var(--accent-dim);
  text-transform: uppercase;
}

/* Orbital visual */
.hero-visual {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  width: 400px;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}
.orbital-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(245,166,35,0.12);
}
.ring-1 { width: 200px; height: 200px; animation: spin 20s linear infinite; }
.ring-2 { width: 300px; height: 300px; animation: spin 32s linear infinite reverse; border-color: rgba(245,166,35,0.07); }
.ring-3 { width: 400px; height: 400px; animation: spin 50s linear infinite; border-color: rgba(245,166,35,0.04); }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.core-node {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
  box-shadow: 0 0 40px rgba(245,166,35,0.3);
}
.core-label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--accent);
}

/* SECTION SHARED */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
}
.section-overline {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 20px;
}

/* PROBLEM */
.problem {
  padding: 120px 0;
  background: var(--bg-raised);
  border-top: 1px solid rgba(245,166,35,0.08);
}
.problem-header {
  margin-bottom: 64px;
}
.problem-headline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.problem-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.problem-column {
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.problem-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.stat-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 40px;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
}
.stat-label {
  font-size: 15px;
  color: var(--fg-muted);
}
.problem-text-col p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-muted);
  margin-bottom: 20px;
}

/* THEORY */
.theory {
  padding: 120px 0;
  background: var(--bg);
}
.theory-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--fg-dim);
  text-transform: uppercase;
  margin-bottom: 48px;
  text-align: center;
}
.theory-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.mono-block {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  color: var(--fg-muted);
  white-space: pre;
  background: var(--bg-card);
  border: 1px solid var(--fg-dim);
  border-left: 3px solid var(--accent);
  padding: 28px 32px;
  border-radius: 2px;
}
.theory-explanation p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-muted);
  margin-bottom: 20px;
}
.theory-explanation em {
  color: var(--fg);
  font-style: normal;
  font-weight: 500;
}

/* LAYERS */
.layers {
  padding: 120px 0;
  background: var(--bg-raised);
  border-top: 1px solid rgba(245,166,35,0.08);
}
.layers-headline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 3.5vw, 44px);
  letter-spacing: -0.02em;
  margin-bottom: 64px;
}
.layer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.layer-card {
  background: var(--bg-card);
  border: 1px solid rgba(245,166,35,0.1);
  padding: 32px 24px;
  border-radius: 4px;
  position: relative;
  transition: border-color 0.3s ease;
}
.layer-card:hover { border-color: rgba(245,166,35,0.3); }
.layer-number {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fg-dim);
  margin-bottom: 20px;
}
.layer-icon {
  margin-bottom: 20px;
}
.layer-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 12px;
  color: var(--fg);
}
.layer-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--fg-muted);
}

/* VISION */
.vision {
  padding: 140px 0;
  background: var(--bg);
}
.vision-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.vision-quote-block {
  position: relative;
}
.big-quote-mark {
  font-family: var(--font-display);
  font-size: 120px;
  font-weight: 800;
  color: var(--accent-dim);
  line-height: 0.6;
  margin-bottom: 8px;
}
blockquote {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(20px, 2.5vw, 30px);
  line-height: 1.35;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.vision-sub-text p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-muted);
  margin-bottom: 20px;
}

/* CLOSING */
.closing {
  padding: 160px 0;
  background: var(--bg-raised);
  border-top: 1px solid rgba(245,166,35,0.08);
  text-align: center;
}
.closing-content { max-width: 680px; margin: 0 auto; }
.closing-overline {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 28px;
}
.closing-headline {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 5.5vw, 68px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: 24px;
}
.closing-sub {
  font-size: 16px;
  color: var(--fg-muted);
}

/* FOOTER */
.footer {
  padding: 48px 0;
  border-top: 1px solid rgba(245,166,35,0.08);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-wordmark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--fg-dim);
}
.footer-legal p {
  font-size: 11px;
  color: var(--fg-dim);
  line-height: 1.5;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .layer-grid { grid-template-columns: repeat(2, 1fr); }
  .problem-body { grid-template-columns: 1fr; gap: 48px; }
  .theory-content { grid-template-columns: 1fr; gap: 48px; }
  .vision-content { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
}
@media (max-width: 600px) {
  .nav { padding: 20px 24px; }
  .hero { padding: 120px 24px 80px; }
  .section-inner { padding: 0 24px; }
  .layer-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
}