/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #202124;
  background: #ffffff;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Animation keyframes */
@keyframes gridPulse {
  0%, 100% {
    opacity: 0.3;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.02);
  }
}

@keyframes waveFlow {
  0% {
    transform: translateX(-100vw) scaleX(0);
    opacity: 0;
  }
  50% {
    opacity: 0.8;
    transform: translateX(0) scaleX(1);
  }
  100% {
    transform: translateX(100vw) scaleX(0);
    opacity: 0;
  }
}

@keyframes orbitRing {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulseConnection {
  0%, 100% {
    opacity: 0.4;
  }
  50% {
    opacity: 1;
  }
}

/* Scroll animations */
.animate-on-scroll {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 1s ease, transform 1s ease;
}

.animate-on-scroll.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 3rem;
}

@media (max-width: 1024px) {
  .container {
    padding: 0 2rem;
  }
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid #e8eaed;
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-image {
  height: 32px;
  width: auto;
}

.logo-text {
  font-size: 1.125rem;
  font-weight: 600;
  color: #202124;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: #202124;
  margin: 3px 0;
  transition: 0.3s;
}

.back-link {
  color: #5f6368;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color 0.2s ease;
}

.back-link:hover {
  color: #202124;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  position: relative;
}

.btn-primary {
  background: #202124;
  color: #fff;
}

.btn-primary:hover {
  background: #000000;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
  background: transparent;
  color: #202124;
  border: 1px solid #dadce0;
}

.btn-secondary:hover {
  background: #f8f9fa;
  border-color: #202124;
}

/* Hero Section */
.hero {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: #000000;
  color: #fff;
  overflow: hidden;
  padding: 8rem 0 4rem;
  margin-top: 80px;
}

.hero-background {
  display: none;
}

.grid-animation {
  display: none;
}

.wave-lines {
  display: none;
}

.hero-content {
  text-align: center;
  z-index: 2;
  position: relative;
  max-width: 900px;
  padding: 0 2rem;
}

.brand-logo {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 2rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero-title {
  font-size: 4.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: #ffffff;
}

.hero-subtitle {
  font-size: 1.375rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 3rem;
  font-weight: 400;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.hero-cta {
  margin-top: 4rem;
}

.scroll-hint {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 400;
}

.scroll-hint:hover {
  color: rgba(255, 255, 255, 0.9);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

/* Sections */
.section {
  padding: 7rem 0;
}

.section-title {
  font-size: 3rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: 4rem;
  color: #202124;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

/* What Section */
.what-section {
  background: #ffffff;
}

.what-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.what-left h2 {
  font-size: 2.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: #202124;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.what-left p {
  font-size: 1.125rem;
  color: #5f6368;
  line-height: 1.7;
  font-weight: 400;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.feature-item {
  font-size: 1rem;
  color: #5f6368;
  padding: 0;
  transition: all 0.2s ease;
  font-weight: 400;
  line-height: 1.6;
}

.feature-item:hover {
  color: #202124;
}

/* Powers Section */
.powers-section {
  background: #fff;
}

.powers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
}

.power-tile {
  background: #f8f9fa;
  padding: 3rem 2rem;
  border-radius: 16px;
  text-align: center;
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.power-tile::before {
  content: attr(data-description);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: #000;
  color: #fff;
  padding: 1.5rem;
  font-size: 1rem;
  transform: translateY(100%);
  transition: transform 0.4s ease;
  line-height: 1.4;
}

.power-tile:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.power-tile:hover::before {
  transform: translateY(0);
}

.power-icon {
  font-size: 4rem;
  margin-bottom: 2rem;
  animation: float 4s ease-in-out infinite;
}

.power-tile:nth-child(2) .power-icon { animation-delay: -1s; }
.power-tile:nth-child(3) .power-icon { animation-delay: -2s; }
.power-tile:nth-child(4) .power-icon { animation-delay: -3s; }

.power-tile h3 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: #000;
}

.power-tile p {
  color: #666;
  font-size: 1.1rem;
}

/* Attributes Section */
.attributes-section {
  background: #f8f9fa;
}

.attributes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.attribute-card {
  background: #fff;
  padding: 3rem 2rem;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
}

.attribute-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.attribute-icon {
  font-size: 3.5rem;
  margin-bottom: 2rem;
}

.attribute-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: #000;
}

.attribute-card p {
  color: #666;
  font-size: 1.1rem;
}

/* Capabilities Section */
.capabilities-section {
  background: #f8f9fa;
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.capability-tile {
  background: #ffffff;
  padding: 2.5rem 2rem;
  border-radius: 12px;
  text-align: left;
  border: 1px solid #e8eaed;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.capability-tile::before {
  content: attr(data-description);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: #202124;
  color: #fff;
  padding: 1.5rem 2rem;
  font-size: 0.9375rem;
  transform: translateY(100%);
  transition: transform 0.3s ease;
  line-height: 1.6;
  font-weight: 400;
}

.capability-tile:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
  border-color: #dadce0;
}

.capability-tile:hover::before {
  transform: translateY(0);
}

.capability-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: #202124;
  transition: all 0.3s ease;
}

.capability-tile:hover .capability-icon {
  transform: scale(0.95);
  opacity: 0.6;
}

.capability-tile h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: #202124;
  letter-spacing: -0.01em;
  transition: opacity 0.3s ease;
}

.capability-tile:hover h3 {
  opacity: 0.6;
}

.capability-tile p {
  color: #5f6368;
  font-size: 0.9375rem;
  line-height: 1.6;
  font-weight: 400;
  transition: opacity 0.3s ease;
}

.capability-tile:hover p {
  opacity: 0.5;
}

/* Comparison Section */
.comparison-section {
  background: #ffffff;
}

.comparison-table {
  max-width: 1000px;
  margin: 0 auto;
  background: #ffffff;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #e8eaed;
}

.table-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #f8f9fa;
  color: #202124;
}

.table-col {
  padding: 2rem 2.5rem;
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
}

.table-col.highlight {
  background: #202124;
  color: #ffffff;
}

.table-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid #e8eaed;
  transition: background-color 0.2s ease;
}

.table-row:last-child {
  border-bottom: none;
}

.table-row:hover {
  background-color: #f8f9fa;
}

.table-cell {
  padding: 1.5rem 2.5rem;
  font-size: 0.9375rem;
  color: #5f6368;
  background: #fff;
  font-weight: 400;
  line-height: 1.6;
  transition: all 0.2s ease;
}

.table-cell.highlight {
  background: #ffffff;
  color: #202124;
  font-weight: 500;
}

/* Invisible Section */
.invisible-section {
  background: #000000;
  color: #fff;
  min-height: 50vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.invisible-background {
  display: none;
}

.orbiting-rings {
  display: none;
}

.ring {
  display: none;
}

.invisible-content {
  z-index: 2;
  position: relative;
  text-align: center;
  max-width: 850px;
  margin: 0 auto;
  padding: 0 2rem;
}

.invisible-text {
  font-size: 1.75rem;
  line-height: 1.6;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: -0.01em;
}

/* Vision Section */
.vision-section {
  background: #f8f9fa;
  text-align: center;
}

.vision-content h2 {
  font-size: 3rem;
  font-weight: 600;
  margin-bottom: 2.5rem;
  color: #202124;
  letter-spacing: -0.02em;
}

.vision-text p {
  font-size: 1.125rem;
  color: #5f6368;
  margin-bottom: 1.5rem;
  line-height: 1.7;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.vision-text p:nth-child(2) {
  font-weight: 400;
  color: #5f6368;
}

.vision-text p:last-child {
  font-weight: 500;
  color: #202124;
}

/* Ecosystem Section */
.ecosystem-section {
  background: #f8f9fa;
}

.ecosystem-diagram {
  position: relative;
  height: 450px;
  margin: 0 auto 3rem;
  max-width: 650px;
}

.ecosystem-node {
  position: absolute;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
  font-size: 0.9375rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.ecosystem-node:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.ecosystem-node.center {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #202124;
  width: 160px;
  height: 160px;
  font-size: 1.125rem;
  z-index: 10;
  font-weight: 600;
}

.ecosystem-node.center:hover {
  transform: translate(-50%, -50%) scale(1.05);
}

.ecosystem-node.top {
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
  background: #5f6368;
}

.ecosystem-node.left {
  top: 50%;
  left: 8%;
  transform: translateY(-50%);
  background: #3c4043;
}

.ecosystem-node.right {
  top: 50%;
  right: 8%;
  transform: translateY(-50%);
  background: #80868b;
}

.ecosystem-node.bottom {
  bottom: 8%;
  left: 50%;
  transform: translateX(-50%);
  background: #9aa0a6;
}

.connection-line {
  position: absolute;
  background: #dadce0;
  opacity: 0.5;
}

.line-1 {
  top: 25%;
  left: 50%;
  width: 1px;
  height: 15%;
  transform: translateX(-50%);
}

.line-2 {
  top: 50%;
  left: 25%;
  width: 20%;
  height: 1px;
  transform: translateY(-50%);
}

.line-3 {
  top: 50%;
  right: 25%;
  width: 20%;
  height: 1px;
  transform: translateY(-50%);
}

.line-4 {
  bottom: 25%;
  left: 50%;
  width: 1px;
  height: 15%;
  transform: translateX(-50%);
}

.ecosystem-subtitle {
  text-align: center;
  font-size: 1rem;
  color: #5f6368;
  font-style: italic;
  font-weight: 400;
}

/* Manifesto Section */
.manifesto-section {
  background: #000000;
  color: #fff;
  min-height: 50vh;
  display: flex;
  align-items: center;
}

.manifesto-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.manifesto-quote {
  font-size: 1.75rem;
  line-height: 1.6;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.8);
  font-style: italic;
}

/* Why We Built M-II Section */
.why-built-section {
  background: #ffffff;
  text-align: center;
}

.why-built-content h2 {
  font-size: 3rem;
  font-weight: 600;
  margin-bottom: 3rem;
  color: #202124;
  letter-spacing: -0.02em;
}

.why-built-text {
  max-width: 800px;
  margin: 0 auto;
}

.why-built-text p {
  font-size: 1.125rem;
  color: #5f6368;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.why-built-text p:nth-child(2) {
  font-weight: 400;
  color: #5f6368;
}

.why-built-text p:last-child {
  font-weight: 500;
  color: #202124;
}

.why-built-quote {
  font-size: 1.5rem;
  line-height: 1.6;
  font-weight: 400;
  color: #5f6368;
  font-style: italic;
  margin-top: 3rem;
  max-width: 750px;
  margin-left: auto;
  margin-right: auto;
  padding: 2.5rem 0;
  border-top: 1px solid #e8eaed;
}

/* CTA Section */
.cta-section {
  background: #f8f9fa;
  text-align: center;
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: #202124;
  letter-spacing: -0.02em;
}

.cta-subtitle {
  font-size: 1.125rem;
  color: #5f6368;
  margin-bottom: 2.5rem;
  font-weight: 400;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  background: #000;
  color: #fff;
  padding: 3rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand .logo {
  margin-bottom: 1rem;
}

.footer-logo-text {
  color: #fff;
}

.footer-brand p {
  color: #ccc;
}

.footer-links {
  display: flex;
  gap: 3rem;
}

.footer-section h4 {
  font-weight: 600;
  margin-bottom: 1rem;
  color: #fff;
}

.footer-section a {
  display: block;
  color: #ccc;
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: #fff;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 2rem 0;
}

.social-icon {
  width: 24px;
  height: 24px;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.social-links a:hover .social-icon {
  opacity: 1;
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 2rem;
  text-align: center;
}

.footer-bottom p {
  color: #888;
  margin-bottom: 0.5rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }

  .nav-container {
    padding: 0 1.5rem;
    height: 70px;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    border-bottom: 1px solid #e8eaed;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .hero {
    margin-top: 70px;
    padding: 4rem 0 3rem;
  }

  .section {
    padding: 4rem 0;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.125rem;
  }

  .section-title {
    font-size: 2rem;
    margin-bottom: 3rem;
  }

  .what-split {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .what-left h2 {
    font-size: 2rem;
  }

  .what-left p {
    font-size: 1rem;
  }

  .powers-grid {
    grid-template-columns: 1fr;
  }

  .attributes-grid {
    grid-template-columns: 1fr;
  }

  .capabilities-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .capability-tile {
    padding: 2rem 1.5rem;
  }

  .table-header,
  .table-row {
    grid-template-columns: 1fr;
  }

  .table-col,
  .table-cell {
    padding: 1.25rem 1.5rem;
  }

  .invisible-text {
    font-size: 1.25rem;
  }

  .why-built-content h2 {
    font-size: 2rem;
  }

  .why-built-text p {
    font-size: 1rem;
  }

  .why-built-quote {
    font-size: 1.25rem;
  }

  .cta-content h2 {
    font-size: 2rem;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

  .ecosystem-diagram {
    height: 350px;
  }

  .ecosystem-node {
    width: 90px;
    height: 90px;
    font-size: 0.8125rem;
  }

  .ecosystem-node.center {
    width: 120px;
    height: 120px;
    font-size: 1rem;
  }
}