/* ==========================================================================
   CSS Variables & Reset
   ========================================================================== */

:root {
  /* Colors */
  --color-black: #0a0a0a;
  --color-lime: #00ff3c;
  --color-white: #ffffff;
  --color-grey-light: #f5f5f5;
  --color-grey-medium: #999999;
  
  /* Typography */
  --font-sans: 'Harmonia Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Harmonia Sans', Georgia, serif;
  
  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;
  
  /* Animation */
  --duration-fast: 200ms;
  --duration-normal: 400ms;
  --duration-slow: 600ms;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Layout */
  --container-max: 1200px;
  --container-padding: var(--space-lg);
  --border-radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-white);
  background-color: var(--color-black);
  opacity: 0;
  animation: fadeInPage var(--duration-slow) var(--ease) forwards;
  overflow-x: hidden;
}

/* Disable image dragging globally */
img, svg {
  -webkit-user-drag: none;
  -khtml-user-drag: none;
  -moz-user-drag: none;
  -o-user-drag: none;
  user-drag: none;
  pointer-events: none;
}

/* Interactive elements should allow pointer events */
button, a, input, textarea {
  pointer-events: auto;
}

/* Text selection styling */
::selection {
  background-color: var(--color-lime);
  color: var(--color-black);
}

/* Focus styles for accessibility */
:focus-visible {
  outline: 2px solid var(--color-lime);
  outline-offset: 2px;
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeInPage {
  to {
    opacity: 1;
  }
}

@keyframes glowPulse {
  0%, 100% {
    filter: drop-shadow(0 0 5px var(--color-lime));
  }
  50% {
    filter: drop-shadow(0 0 20px var(--color-lime));
  }
}



@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes drawLine {
  from {
    stroke-dashoffset: 1000;
  }
  to {
    stroke-dashoffset: 0;
  }
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  background-color: transparent;
  backdrop-filter: none;
  border-bottom: none;
  font-family: 'Harmonia Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important;
}

.nav * {
  font-family: 'Harmonia Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important;
}

.nav__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: 'Harmonia Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: 'Harmonia Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important;
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--color-white);
  text-decoration: none;
}

.nav__logo-text {
  font-family: var(--font-serif) !important;
  font-weight: 400 !important;
}

.nav__logo-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.nav__links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-xl);
}

.nav__link {
  color: var(--color-grey-medium);
  text-decoration: none;
  font-family: 'Harmonia Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important;
  font-weight: 400;
  transition: color var(--duration-normal) var(--ease);
  position: relative;
}

.nav__link:hover,
.nav__link:focus {
  color: var(--color-lime);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-lime);
  transition: width var(--duration-normal) var(--ease);
}

.nav__link:hover::after,
.nav__link:focus::after {
  width: 100%;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--space-4xl) var(--container-padding);
}

.hero__container {
  max-width: var(--container-max);
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero__logo-wrapper {
  position: relative;
  display: inline-block;
  margin-bottom: var(--space-2xl);
}

.hero__logo {
  width: 120px;
  height: 120px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px var(--color-lime));
  animation: glowPulse 3s ease-in-out infinite;
}



.hero__headline {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 400;
  line-height: 1.2;
  margin: 0 0 var(--space-2xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  animation: slideInLeft var(--duration-slow) var(--ease) 1s forwards;
}

.hero__cta-group {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: slideInRight var(--duration-slow) var(--ease) 1.5s forwards;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--border-radius);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  border: 2px solid;
  cursor: pointer;
  background: none;
  font-family: inherit;
  font-size: 1rem;
  position: relative;
  overflow: hidden;
}

.hero__cta--primary {
  background-color: var(--color-lime);
  color: var(--color-black);
  border-color: var(--color-lime);
}

.hero__cta--primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.6s ease;
}

.hero__cta--primary:hover::before {
  left: 100%;
}

.hero__cta--primary:hover,
.hero__cta--primary:focus {
  background-color: transparent;
  color: var(--color-lime);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 35px rgba(0, 255, 60, 0.3), 0 5px 15px rgba(0, 255, 60, 0.2);
}

.hero__cta--secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.hero__cta--secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.6s ease;
}

.hero__cta--secondary:hover::before {
  left: 100%;
}

.hero__cta--secondary:hover,
.hero__cta--secondary:focus {
  background-color: var(--color-white);
  color: var(--color-black);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 35px rgba(255, 255, 255, 0.15), 0 5px 15px rgba(255, 255, 255, 0.1);
}



/* ==========================================================================
   Why Xode Section
   ========================================================================== */

.why {
  padding: var(--space-4xl) var(--container-padding);
  position: relative;
}

.why__container {
  max-width: var(--container-max);
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.why__headline {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 400;
  line-height: 1.3;
  margin: 0;
  max-width: 900px;
  margin: 0 auto;
}

.why__line {
  display: block;
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--duration-slow) var(--ease);
}

.why__line.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.why__line:nth-child(2) {
  transition-delay: 0.3s;
}



/* ==========================================================================
   Features Section
   ========================================================================== */

.features {
  padding: var(--space-4xl) var(--container-padding);
}

.features__container {
  max-width: var(--container-max);
  margin: 0 auto;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-3xl);
}

.feature {
  text-align: center;
  opacity: 0;
  transform: translateY(50px);
  transition: all var(--duration-slow) var(--ease);
  padding: var(--space-lg);
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.feature.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.feature:hover {
  background: rgba(0, 255, 60, 0.05);
  border-color: rgba(0, 255, 60, 0.2);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 255, 60, 0.1);
}

.feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 60, 0.1), transparent);
  transition: left 0.6s ease;
}

.feature:hover::before {
  left: 100%;
}

.feature:nth-child(2) {
  transition-delay: 0.2s;
}

.feature:nth-child(3) {
  transition-delay: 0.4s;
}

.feature__icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border: 2px solid var(--color-grey-medium);
  border-radius: 50%;
  margin-bottom: var(--space-lg);
  transition: all var(--duration-normal) var(--ease-bounce);
  color: var(--color-grey-medium);
}

.feature__icon-wrapper:hover {
  border-color: var(--color-lime);
  color: var(--color-lime);
  transform: scale(1.1);
  box-shadow: 0 0 20px rgba(0, 255, 60, 0.3);
}

.feature__icon {
  width: 32px;
  height: 32px;
  transition: transform var(--duration-normal) var(--ease);
}

.feature__icon-wrapper:hover .feature__icon {
  transform: scale(1.1);
}

.feature__title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  margin: 0 0 var(--space-md);
  color: var(--color-white);
}

.feature__description {
  color: var(--color-grey-medium);
  line-height: 1.7;
  margin: 0;
  max-width: 280px;
  margin: 0 auto;
}

/* ==========================================================================
   Demo Section
   ========================================================================== */

.demo {
  padding: var(--space-4xl) 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 255, 60, 0.05) 50%, transparent 100%);
}

.demo__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  text-align: center;
}

.demo__title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 600;
  text-align: center;
  margin: 0 0 var(--space-3xl);
  color: var(--color-white);
}

.demo__video-container {
  position: relative;
  display: inline-block;
  margin: 0 auto;
  border-radius: var(--border-radius);
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(0, 255, 60, 0.3);
  box-shadow: 0 20px 40px rgba(0, 255, 60, 0.1);
}

.demo__video {
  display: block;
  background-color: var(--color-black);
  border-radius: var(--border-radius);
  width: auto;
  height: auto;
  max-width: 900px;
}



/* ==========================================================================
   Roadmap Section
   ========================================================================== */

.roadmap {
  padding: var(--space-4xl) var(--container-padding);
}

.roadmap__container {
  max-width: 800px;
  margin: 0 auto;
}

.roadmap__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  text-align: center;
  margin: 0 0 var(--space-3xl);
  color: var(--color-white);
}

.roadmap__timeline {
  position: relative;
}

.roadmap__timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateX(-50%);
}

.roadmap__item {
  position: relative;
  display: flex;
  align-items: center;
  margin-bottom: var(--space-3xl);
  opacity: 0;
  transition: all var(--duration-slow) var(--ease);
}

.roadmap__item.is-visible {
  opacity: 1;
}

.roadmap__item--left {
  justify-content: flex-end;
  text-align: right;
  transform: translateX(-50px);
}

.roadmap__item--left.is-visible {
  transform: translateX(0);
}

.roadmap__item--right {
  justify-content: flex-start;
  text-align: left;
  transform: translateX(50px);
}

.roadmap__item--right.is-visible {
  transform: translateX(0);
}

.roadmap__content {
  width: calc(50% - var(--space-xl));
  padding: var(--space-lg);
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--duration-normal) var(--ease);
}

.roadmap__content:hover {
  background-color: rgba(0, 255, 60, 0.1);
  border-color: rgba(0, 255, 60, 0.3);
  transform: translateY(-5px);
}

.roadmap__quarter {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  margin: 0 0 var(--space-sm);
  color: var(--color-lime);
}

.roadmap__description {
  color: var(--color-grey-medium);
  margin: 0;
  line-height: 1.6;
}

.roadmap__marker {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 16px;
  height: 16px;
  background-color: var(--color-lime);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  border: 4px solid var(--color-black);
  z-index: 2;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  padding: var(--space-2xl) var(--container-padding) var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.footer__left {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.footer__status {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.footer__status-indicator {
  width: 8px;
  height: 8px;
  background-color: var(--color-lime);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.footer__status-text {
  color: var(--color-lime);
  font-weight: 500;
  font-size: 0.875rem;
}

.footer__link,
.footer__support {
  color: var(--color-grey-medium);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--duration-normal) var(--ease);
}

.footer__link:hover,
.footer__link:focus,
.footer__support:hover,
.footer__support:focus {
  color: var(--color-lime);
}

.footer__language-btn {
  background: none;
  border: none;
  color: var(--color-grey-medium);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  cursor: pointer;
  transition: color var(--duration-normal) var(--ease);
  padding: 0;
}

.footer__language-btn:hover,
.footer__language-btn:focus {
  color: var(--color-lime);
}

.footer__right {
  display: flex;
  gap: var(--space-lg);
}

.footer__social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-grey-medium);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transition: all var(--duration-normal) var(--ease);
  text-decoration: none;
}

.footer__social:hover,
.footer__social:focus {
  color: var(--color-lime);
  border-color: var(--color-lime);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 255, 60, 0.3);
}

.footer__social svg {
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.footer__social-img {
  width: 18px;
  height: 18px;
  object-fit: contain;
  pointer-events: none;
}

.footer__bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copyright {
  color: var(--color-grey-medium);
  margin: 0;
  font-size: 0.875rem;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
  :root {
    --container-padding: var(--space-md);
    --space-4xl: var(--space-3xl);
    --space-3xl: var(--space-2xl);
  }
  
  .nav__links {
    display: none;
  }
  
  .hero {
    padding: var(--space-3xl) var(--container-padding);
  }
  
  .hero__cta-group {
    flex-direction: column;
    align-items: center;
  }
  

  

  
  .features__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  
  .demo__video {
    max-width: calc(100vw - 2 * var(--space-sm));
  }
  
  .roadmap__timeline::before {
    left: var(--space-lg);
  }
  
  .roadmap__item {
    justify-content: flex-start !important;
    text-align: left !important;
  }
  
  .roadmap__item--left,
  .roadmap__item--right {
    transform: translateX(0);
  }
  
  .roadmap__content {
    width: calc(100% - var(--space-3xl));
    margin-left: var(--space-3xl);
  }
  
  .roadmap__marker {
    left: var(--space-lg);
  }
  
  .footer__container {
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
  }
  
  .footer__left {
    flex-direction: column;
    gap: var(--space-md);
  }
}

@media (max-width: 480px) {
  .hero__cta {
    width: 100%;
    justify-content: center;
  }
}

/* ==========================================================================
   Particle Effects
   ========================================================================== */

.particles-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.6;
}

#particles-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Animated background gradient overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    ellipse at 20% 80%, 
    rgba(0, 255, 60, 0.08) 0%, 
    transparent 50%
  ),
  radial-gradient(
    ellipse at 80% 20%, 
    rgba(0, 255, 60, 0.05) 0%, 
    transparent 50%
  ),
  radial-gradient(
    ellipse at 40% 40%, 
    rgba(0, 255, 60, 0.03) 0%, 
    transparent 50%
  );
  pointer-events: none;
  z-index: -2;
  animation: gradientShift 20s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% {
    opacity: 0.6;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.1);
  }
}



/* ==========================================================================
   Utility Classes
   ========================================================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}