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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  /* Changed from purple gradient to solid black background */
  background: #000000;
  /* Changed text color to white */
  color: #ffffff;
  min-height: 100vh;
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 3rem 0 5rem;
}

.logo {
  margin-bottom: 2rem;
}

.logo img {
  width: 120px;
  height: 120px;
  border-radius: 12px;
}

.main-title {
  font-size: 4rem;
  font-weight: 800;
  /* Changed from purple-pink gradient to white */
  color: #ffffff;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  background-clip: unset;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 1.125rem;
  /* Changed to light gray */
  color: #d1d5db;
  margin-bottom: 2rem;
}

/* Buttons */
.btn-primary {
  /* Changed from purple-pink gradient to dark gray gradient */
  background: linear-gradient(135deg, #374151 0%, #1f2937 100%);
  color: white;
  border: none;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 9999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: transform 0.2s, box-shadow 0.2s;
  /* Changed shadow to gray tones */
  box-shadow: 0 4px 20px rgba(55, 65, 81, 0.5);
}

.btn-primary:hover {
  transform: translateY(-2px);
  /* Changed hover shadow to gray tones */
  box-shadow: 0 6px 25px rgba(55, 65, 81, 0.7);
}

.btn-secondary {
  background: transparent;
  /* Changed text to white */
  color: #ffffff;
  /* Changed border to dark gray */
  border: 2px solid #374151;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  /* Changed hover border to medium gray */
  border-color: #6b7280;
  /* Changed hover background to dark gray with opacity */
  background: rgba(55, 65, 81, 0.3);
}

.btn-flash {
    border: 2px solid red !important;
    animation: flash-border 1s infinite;
}

@keyframes flash-border {
    0%, 100% { box-shadow: 0 0 0 0 red; border-color: red; }
    50% { box-shadow: 0 0 10px 2px red; border-color: #fff; }
}

.icon {
  width: 20px;
  height: 20px;
}

/* Features Section */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 4rem 0;
}

.feature-card {
  /* Changed background to dark gray */
  background: #1f2937;
  /* Changed border to medium gray */
  border: 1px solid #374151;
  border-radius: 16px;
  padding: 2.5rem 2rem;
  text-align: center;
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  /* Changed hover border to lighter gray */
  border-color: #6b7280;
  /* Changed hover shadow to gray tones */
  box-shadow: 0 8px 30px rgba(55, 65, 81, 0.5);
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg {
  width: 40px;
  height: 40px;
  /* Changed icon color to light gray */
  stroke: #d1d5db;
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  /* Changed to white */
  color: #ffffff;
  margin-bottom: 1rem;
}

.feature-description {
  font-size: 0.9375rem;
  /* Changed to light gray */
  color: #d1d5db;
  line-height: 1.6;
}

/* CTA Section */
.cta-section {
  /* Changed background to dark gray */
  background: #1f2937;
  /* Changed border to medium gray */
  border: 1px solid #374151;
  border-radius: 24px;
  padding: 3rem 2rem;
  text-align: center;
  margin: 4rem 0;
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 700;
  /* Changed from gradient to white */
  color: #ffffff;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  background-clip: unset;
  margin-bottom: 1rem;
}

.cta-description {
  font-size: 1rem;
  /* Changed to light gray */
  color: #d1d5db;
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

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

/* Footer */
.footer {
  text-align: center;
  padding: 3rem 0 2rem;
  /* Changed to medium gray */
  color: #9ca3af;
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .main-title {
    font-size: 2.5rem;
  }

  .cta-title {
    font-size: 1.875rem;
  }

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

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

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

@media (max-width: 480px) {
  .main-title {
    font-size: 2rem;
  }

  .container {
    padding: 1rem;
  }

  .hero {
    padding: 2rem 0 3rem;
  }
}