:root {
  /* Colors */
  --bg-dark: #000000;
  --bg-graphite: #1a1a1c;
  --text-white: #f5f5f7;
  --text-gray: #a1a1a6;
  --accent-blue: #0A84FF;
  --accent-blue-glow: rgba(10, 132, 255, 0.4);
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);

  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Layout Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
  --space-xxl: 12rem;
  
  /* Transitions */
  --transition-smooth: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-white);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

/* Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-md { margin-top: var(--space-md); }
.mt-xl { margin-top: var(--space-xl); }
.max-w-md { max-width: 600px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  text-decoration: none;
  border-radius: 999px;
  transition: var(--transition-fast);
  cursor: pointer;
  border: none;
}

.btn-sm {
  padding: 0.5rem 1.2rem;
  font-size: 0.9rem;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

.btn-primary {
  background-color: var(--text-white);
  color: var(--bg-dark);
}

.btn-primary:hover {
  background-color: var(--text-gray);
  transform: scale(1.02);
}

.btn-secondary {
  background-color: var(--glass-bg);
  color: var(--text-white);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Typography styles */
h1.headline {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: var(--space-sm);
}

.subheadline {
  font-size: clamp(1.2rem, 3vw, 2rem);
  color: var(--text-gray);
  font-weight: 400;
  margin-bottom: var(--space-md);
}

.supporting-copy {
  font-size: 1.1rem;
  color: var(--text-gray);
  max-width: 500px;
  margin-bottom: var(--space-xl);
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

.section-desc {
  font-size: 1.2rem;
  color: var(--text-gray);
  margin-bottom: var(--space-lg);
}

.text-glow {
  color: var(--accent-blue);
  text-shadow: 0 0 40px var(--accent-blue-glow);
}
.text-glow-large {
  background: linear-gradient(135deg, var(--text-white) 0%, var(--accent-blue) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Glass UI / Cards */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--space-md);
  transition: var(--transition-smooth);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.glow-shadow {
  box-shadow: 0 20px 80px rgba(10, 132, 255, 0.15);
}

/* Nav */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition-fast);
}

/* Image Fallbacks */
img {
  background: var(--glass-bg);
  min-height: 50px;
  object-fit: cover;
  position: relative;
}
img::after {
  content: " ";
  display: block;
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: var(--glass-bg);
}

.navbar.scrolled {
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.logo-image {
  height: 24px;
  mix-blend-mode: screen; /* Strips black backgrounds, makes white pop on dark bg */
  filter: drop-shadow(0 0 5px rgba(255,255,255,0.3));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-link {
  color: var(--text-white);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0.8;
  transition: var(--transition-fast);
}

.nav-link:hover {
  opacity: 1;
}

/* Layout Blocks */
.section {
  padding: var(--space-xxl) 0;
  position: relative;
}

.layout-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}
.layout-split.reverse {
  direction: rtl;
}
.layout-split.reverse > * {
  direction: ltr;
}

/* Layout specifics will go into sections */
/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding-top: 100px; /* Offset for nav */
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 800px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cta-group {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
}

.supporting-copy {
  margin: 0 auto var(--space-xl);
  font-size: 1.1rem;
  color: var(--text-gray);
  max-width: 500px;
}

.hero-visual {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 55%;
  z-index: 1;
}

.hero-mockup-img {
  width: 100%;
  max-width: 700px;
  border-radius: 40px;
  display: block;
}

.floating-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: -1;
}

.orb-1 {
  width: 300px;
  height: 300px;
  background: var(--accent-blue);
  top: 10%;
  left: 20%;
  opacity: 0.2;
  animation: float 10s ease-in-out infinite alternate;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: #4A00E0;
  bottom: 0%;
  right: 10%;
  opacity: 0.15;
  animation: float 12s ease-in-out infinite alternate-reverse;
}

/* Animations */
@keyframes float {
  0% { transform: translateY(0) translateX(0); }
  100% { transform: translateY(-30px) translateX(20px); }
}

.animate-fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s var(--transition-smooth) forwards;
}

.animate-rise {
  opacity: 0;
  transform: translateY(100px);
  animation: fadeInUp 1.5s var(--transition-smooth) forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

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

/* Scroll Revealer */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 1s var(--transition-smooth);
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Problem Section */
.problem {
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-graphite) 100%);
}

.fragment-visual {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.fragment-card {
  padding: 2rem 3rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  font-size: 1.5rem;
  color: var(--text-gray);
  transform: rotate(-5deg);
  transition: transform 0.5s ease;
}

.fragment-card:nth-child(2) {
  transform: translateY(-40px) rotate(2deg);
}

.fragment-card:nth-child(3) {
  transform: rotate(6deg);
}

.problem:hover .fragment-card {
  transform: rotate(0) translateY(0);
  color: var(--text-white);
  border-color: rgba(255,255,255,0.2);
}

/* Solution / Integration */
.solution {
  background: var(--bg-graphite);
}

.solution-img {
  width: 100%;
  max-width: 500px;
  border-radius: 20px;
  mix-blend-mode: screen;
}

/* Features Stack */
.features {
  background: var(--bg-dark);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(10, 132, 255, 0.1);
  color: var(--accent-blue);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
}

.feature-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  font-weight: 500;
}
.feature-card p {
  color: var(--text-gray);
  font-size: 0.95rem;
}

/* AI Companion */
.ai-prompts {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.prompt-chip {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.8rem 1.5rem;
  border-radius: 20px 20px 20px 0;
  font-size: 0.9rem;
  border: 1px solid var(--glass-border);
}

.ai-mockup-img {
  width: 100%;
  max-width: 400px;
  border-radius: 30px;
  mix-blend-mode: screen;
}

/* Wallet */
.wallet {
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-graphite) 100%);
}

.wallet-mockup-img {
  width: 100%;
  max-width: 600px;
  border-radius: 30px;
  mix-blend-mode: screen;
}

/* Corridor Map Abstract */
.corridor {
  height: 800px;
  position: relative;
  background: var(--bg-dark);
  display: flex;
  align-items: center;
  overflow: hidden;
}

.map-text {
  position: relative;
  z-index: 10;
  max-width: 500px;
}

.abstract-map {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 60%;
  background: radial-gradient(circle at center, rgba(10, 132, 255, 0.05) 0%, transparent 70%);
}

/* Using simple CSS to simulate nodes and routes */
.node {
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--text-white);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-blue);
}
.node-ny { top: 40%; left: 30%; }
.node-uk { top: 35%; left: 50%; }
.node-sa { top: 60%; left: 70%; }
.node-ca { top: 30%; left: 20%; }

.route {
  position: absolute;
  border-top: 1px dashed rgba(255,255,255,0.2);
  transform-origin: left;
}
.route-1 {
  top: 40%; left: 30%; width: 25%;
  transform: rotate(5deg);
}
.route-2 {
  top: 40%; left: 30%; width: 50%;
  transform: rotate(20deg);
}

/* Experiences */
.experience-cards {
  display: flex;
  gap: var(--space-md);
  flex-direction: column;
}

.exp-card {
  padding: 2rem;
}
.exp-card.offset-up {
  transform: translateX(40px);
}

.exp-tier {
  font-size: 0.9rem;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.exp-perk {
  font-size: 1.5rem;
  font-weight: 500;
}

/* How It Works */
.how-it-works {
  background: var(--bg-graphite);
}
.steps-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-xl);
}
.step {
  flex: 1;
  text-align: center;
}
.step-num {
  font-size: 3rem;
  font-weight: 300;
  color: rgba(255,255,255,0.1);
  margin-bottom: 1rem;
}
.step-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.step-desc {
  color: var(--text-gray);
  max-width: 250px;
  margin: 0 auto;
}
.step-connector {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

/* CTA */
.final-cta {
  background: radial-gradient(circle at center, rgba(10, 132, 255, 0.1) 0%, var(--bg-dark) 70%);
}

.early-access-form {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  max-width: 500px;
  margin: var(--space-md) auto 0;
}

.glass-input {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  padding: 1rem 1.5rem;
  color: white;
  font-size: 1rem;
  outline: none;
}
.glass-input:focus {
  border-color: rgba(255,255,255,0.3);
}

/* Footer */
.footer {
  padding: var(--space-xl) 0 var(--space-md);
  background: var(--bg-dark);
  border-top: 1px solid var(--glass-border);
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}
.footer-links a {
  color: var(--text-gray);
  text-decoration: none;
  margin: 0 var(--space-sm);
  transition: color var(--transition-fast);
}
.footer-links a:hover {
  color: var(--text-white);
}
.social-icon {
  color: var(--text-gray);
  text-decoration: none;
  margin-left: var(--space-sm);
  font-size: 1.2rem;
}
.footer-bottom {
  text-align: center;
  color: rgba(255,255,255,0.3);
  font-size: 0.8rem;
}

/* Responsiveness */
@media (max-width: 900px) {
  .layout-split {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero {
    flex-direction: column;
    padding-top: 150px;
    text-align: center;
  }
  .hero-content {
    width: 100%;
    margin-bottom: var(--space-lg);
  }
  .cta-group {
    justify-content: center;
  }
  .hero-visual {
    position: relative;
    right: auto;
    width: 100%;
    transform: none;
  }
  .supporting-copy {
    margin: 0 auto var(--space-xl);
  }
  .steps-container {
    flex-direction: column;
    gap: var(--space-lg);
  }
  .step-connector {
    width: 1px;
    height: 50px;
    background: linear-gradient(180deg, transparent, rgba(255,255,255,0.2), transparent);
  }
  .early-access-form {
    flex-direction: column;
  }
  .ai-prompts {
    align-items: center;
  }
}