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

:root {
  --bg: #05050F;
  --surface: #0B0B1A;
  --surface-2: #10101F;
  --accent: #00E5FF;
  --accent-dim: rgba(0, 229, 255, 0.12);
  --accent-glow: rgba(0, 229, 255, 0.3);
  --violet: #7B61FF;
  --violet-dim: rgba(123, 97, 255, 0.15);
  --text: #E8EAF6;
  --text-dim: #6B7394;
  --border: rgba(255,255,255,0.06);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --section-pad: 120px 48px;
}

html { scroll-behavior: smooth; }

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

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 48px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  background: rgba(5, 5, 15, 0.7);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.3px;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--font-body);
  letter-spacing: 0.5px;
}

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #00E5FF;
  box-shadow: 0 0 8px var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

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

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 160px 48px 100px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 600px;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0,229,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.orbit-scene {
  position: absolute;
  right: -80px;
  top: 50%;
  transform: translateY(-50%);
  width: 600px;
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 229, 255, 0.2);
}

.orbit-ring-1 {
  width: 400px; height: 400px;
  border-color: rgba(0,229,255,0.15);
  animation: spin-slow 20s linear infinite;
}

.orbit-ring-2 {
  width: 280px; height: 280px;
  border-color: rgba(0,229,255,0.25);
  animation: spin-slow 14s linear infinite reverse;
}

.orbit-ring-3 {
  width: 180px; height: 180px;
  border-color: rgba(0,229,255,0.4);
  border-style: dashed;
  animation: spin-slow 9s linear infinite;
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.orbit-node {
  position: absolute;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}

.orbit-node-1 {
  top: 0; left: 50%;
  transform: translateX(-50%);
  animation: orbit-1 20s linear infinite;
}

.orbit-node-2 {
  bottom: 0; right: 0;
  animation: orbit-2 14s linear infinite reverse;
}

.orbit-node-3 {
  top: 50%; right: 0;
  transform: translateY(-50%);
  animation: orbit-3 9s linear infinite;
  background: var(--violet);
  box-shadow: 0 0 12px var(--violet);
}

@keyframes orbit-1 {
  from { transform: rotate(-90deg) translateX(200px) rotate(90deg); }
  to   { transform: rotate(270deg) translateX(200px) rotate(-270deg); }
}

@keyframes orbit-2 {
  from { transform: rotate(-45deg) translateX(140px) rotate(45deg); }
  to   { transform: rotate(315deg) translateX(140px) rotate(-315deg); }
}

@keyframes orbit-3 {
  from { transform: rotate(0deg) translateX(90px) rotate(0deg); }
  to   { transform: rotate(360deg) translateX(90px) rotate(-360deg); }
}

.orbit-core {
  position: absolute;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,229,255,0.3) 0%, transparent 70%);
  border: 1px solid rgba(0,229,255,0.4);
  animation: core-pulse 3s ease-in-out infinite;
}

@keyframes core-pulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 20px rgba(0,229,255,0.3); }
  50% { transform: scale(1.1); box-shadow: 0 0 40px rgba(0,229,255,0.5); }
}

.orbit-pulse {
  position: absolute;
  width: 80px; height: 80px;
  border-radius: 50%;
  border: 1px solid rgba(0,229,255,0.2);
  animation: pulse-ring 3s ease-out infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.5); opacity: 0.8; }
  100% { transform: scale(2.5); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-eyebrow {
  margin-bottom: 32px;
}

.eyebrow-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0,229,255,0.2);
  padding: 6px 14px;
  border-radius: 100px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--text);
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
}

.stat { padding: 0 40px; }
.stat:first-child { padding-left: 0; }

.stat-value {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -1px;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.4;
  max-width: 130px;
}

.stat-divider {
  width: 1px;
  height: 50px;
  background: var(--border);
}

/* ===== HOW ===== */
.how {
  padding: var(--section-pad);
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.how-header { margin-bottom: 72px; }

.how-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.1;
  color: var(--text);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
}

.step {
  background: var(--surface);
  padding: 48px;
  transition: background 0.3s ease;
}

.step:hover { background: var(--surface-2); }

.step-number {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 24px;
  opacity: 0.7;
}

.step-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
  letter-spacing: -0.3px;
}

.step-desc {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.7;
}

/* ===== LOOP DIAGRAM ===== */
.loop-section {
  padding: var(--section-pad);
  position: relative;
}

.loop-header { text-align: center; margin-bottom: 80px; }

.loop-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--text);
}

.loop-visual {
  position: relative;
  width: 560px;
  height: 560px;
  margin: 0 auto;
  max-width: 100%;
}

.loop-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: core-pulse 3s ease-in-out infinite;
}

.loop-node {
  position: absolute;
}

.loop-node-inner {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-top: 1pxpx solid rgba(0,229,255,0.3);
  padding: 20px 24px;
  border-radius: 12px;
  text-align: center;
  transition: all 0.3s ease;
}

.loop-node:hover .loop-node-inner {
  border-color: rgba(0,229,255,0.3);
  background: var(--accent-dim);
}

.loop-node-icon {
  margin-bottom: 10px;
}

.loop-node-label {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.loop-node-desc {
  font-size: 12px;
  color: var(--text-dim);
}

.loop-node-ads { top: 0; left: 50%; transform: translateX(-50%); }
.loop-node-traffic { bottom: 80px; right: 20px; }
.loop-node-convert { bottom: 80px; left: 20px; }
.loop-node-learn { bottom: 0; left: 50%; transform: translateX(-50%); }

.loop-flows {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.flow-svg {
  width: 100%; height: 100%;
}

.flow-path {
  stroke-dashoffset: 0;
  animation: flow-dash 3s linear infinite;
}

@keyframes flow-dash {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -40; }
}

.loop-kicker {
  text-align: center;
  margin-top: 56px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.3px;
}

/* ===== MANIFESTO ===== */
.manifesto {
  padding: var(--section-pad);
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.manifesto-inner {
  max-width: 760px;
  margin: 0 auto;
}

.manifesto-quote {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.5px;
  color: var(--text);
  margin-bottom: 40px;
  position: relative;
  padding-left: 24px;
  border-left: 3px solid var(--accent);
}

.manifesto-body {
  font-size: 17px;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 24px;
}

/* ===== CLOSING ===== */
.closing {
  padding: 180px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.closing-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 800px; height: 400px;
  background: radial-gradient(ellipse, rgba(0,229,255,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.closing-content {
  position: relative;
  z-index: 2;
}

.closing-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  color: var(--text);
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 480px;
  margin: 0 auto 64px;
  line-height: 1.7;
}

.closing-rings {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cr {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0,229,255,0.08);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: spin-slow linear infinite;
}

.cr-1 { width: 600px; height: 600px; animation-duration: 30s; }
.cr-2 { width: 450px; height: 450px; animation-duration: 20s; animation-direction: reverse; border-color: rgba(123,97,255,0.08); }
.cr-3 { width: 300px; height: 300px; animation-duration: 14s; }

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

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.footer-note {
  font-size: 13px;
  color: var(--text-dim);
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-dim);
}

.meta-sep { color: var(--border); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  :root { --section-pad: 80px 24px; }
  .hero { padding: 120px 24px 80px; }
  .orbit-scene { display: none; }
  .steps-grid { grid-template-columns: 1fr; }
  .loop-visual { width: 100%; height: 400px; }
  .loop-node-ads, .loop-node-learn { display: none; }
  .loop-node-traffic { bottom: 40px; right: 10px; }
  .loop-node-convert { bottom: 40px; left: 10px; }
  .hero-stats { flex-wrap: wrap; gap: 24px; }
  .stat-divider { display: none; }
  .stat { padding: 0; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .nav { padding: 0 24px; }
}

@media (max-width: 480px) {
  .hero-title { letter-spacing: -1px; }
  .closing { padding: 120px 24px; }
}