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

:root {
  --primary-navy: #1e3a8a;
  --navy-light: #3b82f6;
  --navy-dark: #1e40af;
  --white: #FFFFFF;
  --white-off: #f8fafc;
  --gray-light: #e2e8f0;
  --gray-medium: #64748b;
  --gray-dark: #334155;
  --gray-950: #030712;
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.6;
  color: var(--gray-dark);
  background: var(--white);
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
}

.nav {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 40;
  transition: all 0.3s;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 9999px;
  padding: 0.75rem 8rem;
  min-width: max-content;
  width: auto;
  max-width: 48rem;
  box-shadow: 0 4px 6px rgba(30, 58, 138, 0.1);
  border: 1px solid var(--gray-light);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-navy);
}

.btn {
  padding: 0.5rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.btn-primary {
  background: var(--primary-navy);
  color: var(--white);
  box-shadow: 0 4px 6px rgba(30, 58, 138, 0.2);
}

.btn-primary:hover {
  background: var(--navy-dark);
  transform: scale(1.05);
}

.btn-lg {
  padding: 0.75rem 2rem;
  font-size: 1.125rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--gray-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-bg img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.85) 0%, rgba(59, 130, 246, 0.7) 100%);
  z-index: 1;
}

.hero-icons {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 2;
}

.floating-icon {
  position: absolute;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.125rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  animation: float 3s ease-in-out infinite;
}

.floating-icon.bitcoin {
  top: 5rem;
  left: 2.5rem;
  width: 4rem;
  height: 4rem;
  background: var(--primary-navy);
}

.floating-icon.ethereum {
  top: 10rem;
  right: 5rem;
  width: 3rem;
  height: 3rem;
  background: var(--navy-light);
  animation-delay: 1s;
}

.floating-icon.dollar {
  bottom: 10rem;
  left: 5rem;
  width: 3.5rem;
  height: 3.5rem;
  background: var(--primary-navy);
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  color: var(--white);
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1rem;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--white);
  filter: drop-shadow(0 4px 3px rgba(0, 0, 0, 0.07)) drop-shadow(0 2px 2px rgba(0, 0, 0, 0.06));
  margin-top: 5rem;
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 2rem;
  color: var(--white);
}

.hero-description {
  font-size: 1.125rem;
  margin-bottom: 3rem;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  color: var(--gray-light);
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  margin-bottom: 4rem;
}

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

.stat-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(15px);
  border-radius: 0.5rem;
  padding: 1.5rem;
  border: 1px solid rgba(30, 58, 138, 0.2);
  box-shadow: 0 4px 6px rgba(30, 58, 138, 0.1);
  transition: all 0.3s ease;
}

.stat-card:hover {
  background: rgba(255, 255, 255, 1);
  border: 1px solid rgba(30, 58, 138, 0.4);
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(30, 58, 138, 0.15);
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--primary-navy);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--gray-dark);
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  animation: bounce 2s infinite;
}

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

.help-section {
  padding: 5rem 1rem;
  background: var(--white-off);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gray-dark);
  margin-bottom: 1.5rem;
  text-align: center;
}

.section-description {
  font-size: 1.25rem;
  color: var(--gray-medium);
  max-width: 48rem;
  margin: 0 auto 4rem;
  text-align: center;
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 72rem;
  margin: 0 auto;
}

.help-card {
  background: var(--white);
  border-radius: 0.75rem;
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.help-card:hover {
  transform: scale(1.05);
  box-shadow: 0 20px 40px rgba(30, 58, 138, 0.15);
}

.help-card-icon {
  height: 8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: var(--white);
}

.help-card-icon svg {
  width: 3rem;
  height: 3rem;
  position: relative;
  z-index: 1;
  transition: transform 0.3s;
}

.help-card:hover .help-card-icon svg {
  transform: scale(1.1);
}

.help-card-content {
  padding: 1rem 1.5rem 1.5rem;
}

.help-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-dark);
  margin-bottom: 0.5rem;
  transition: color 0.3s;
}

.help-card:hover .help-card-title {
  color: var(--primary-navy);
}

.help-card-desc {
  color: var(--gray-medium);
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.help-card-issues {
  margin-bottom: 1rem;
}

.help-card-issue {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--gray-medium);
  margin-bottom: 0.5rem;
  transition: transform 0.3s;
}

.help-card:hover .help-card-issue {
  transform: translateX(4px);
}

.help-card-issue::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  background: var(--primary-navy);
  border-radius: 9999px;
  flex-shrink: 0;
}

.help-card .btn {
  width: 100%;
}

.footer {
  background: var(--gray-dark);
  color: var(--white);
  padding: 3rem 1rem;
}

.footer-content {
  max-width: 72rem;
  margin: 0 auto;
}

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

.footer-brand h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--gray-light);
  max-width: 24rem;
  margin-bottom: 1.5rem;
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  color: var(--gray-light);
  transition: color 0.2s;
}

.footer-social a:hover {
  color: var(--white);
}

.footer-links h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--gray-light);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid var(--gray-medium);
  padding-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.footer-bottom p {
  color: var(--gray-light);
  font-size: 0.875rem;
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.875rem;
}

.footer-bottom-links a {
  color: var(--gray-light);
}

.footer-bottom-links a:hover {
  color: var(--white);
}

.footer-made-with {
  width: 100%;
  text-align: center;
  margin-top: 1rem;
  color: var(--gray-light);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
}

.footer-made-with svg {
  color: #f87171;
}

@media (min-width: 768px) {
  .nav {
    padding: 0.75rem 8rem;
  }

  .hero-title {
    font-size: 4.5rem;
  }

  .hero-subtitle {
    font-size: 2.25rem;
  }

  .hero-description {
    font-size: 1.25rem;
  }

  .hero-buttons {
    flex-direction: row;
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 767px) {
  .nav {
    padding: 0.75rem 5rem;
  }

  .hero-title {
    font-size: 3rem;
  }

  .hero-subtitle {
    font-size: 1.5rem;
  }

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

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

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