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

body {
  font-family: "Arial", sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 2rem 0;
  text-align: center;
  color: white;
  margin-bottom: 2rem;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

header p {
  font-size: 1.2rem;
  opacity: 0.9;
}

/* Main Content */
main {
  background: white;
  border-radius: 15px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.intro {
  text-align: center;
  margin-bottom: 3rem;
}

.intro h2 {
  color: #4a5568;
  margin-bottom: 1rem;
  font-size: 2rem;
}

.intro p {
  font-size: 1.1rem;
  color: #666;
  max-width: 600px;
  margin: 0 auto;
}

/* Download Section */
.download-section h2 {
  color: #4a5568;
  margin-bottom: 2rem;
  font-size: 1.8rem;
  text-align: center;
}

.section-title {
  color: #2d3748;
  margin: 2rem 0 1.5rem 0;
  font-size: 1.5rem;
  text-align: center;
  padding: 1rem;
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  border-radius: 10px;
  border-left: 4px solid #667eea;
  font-weight: 600;
}

.section-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 3rem 0;
}

.section-divider::before,
.section-divider::after {
  content: "";
  flex: 1;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    #667eea,
    #764ba2,
    #667eea,
    transparent
  );
}

.section-divider::before {
  margin-right: 1rem;
}

.section-divider::after {
  margin-left: 1rem;
}

.divider-text {
  padding: 0.5rem 1.5rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 25px;
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.bot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.bot-card {
  background: #f8f9fa;
  border-radius: 10px;
  padding: 1.5rem;
  border: 1px solid #e9ecef;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.bot-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.bot-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.bot-header h3 {
  color: #2d3748;
  font-size: 1.3rem;
}

.version {
  background: #667eea;
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 15px;
  font-size: 0.9rem;
  font-weight: 600;
}

.bot-description p {
  color: #666;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.features {
  list-style: none;
  margin-bottom: 1.5rem;
}

.features li {
  color: #4a5568;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
}

.features li i {
  color: #48bb78;
  margin-right: 0.5rem;
  width: 16px;
}

.bot-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.download-btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.file-size {
  color: #666;
  font-size: 0.9rem;
}

/* Installation Guide */
.installation-guide {
  margin-bottom: 3rem;
}

.installation-guide h2 {
  color: #4a5568;
  margin-bottom: 2rem;
  font-size: 1.8rem;
  text-align: center;
}

.steps {
  display: grid;
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem;
  background: #f8f9fa;
  border-radius: 12px;
  border-left: 4px solid #667eea;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  text-align: left;
}

.step-number {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
  font-size: 1.1rem;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.step-content h4 {
  color: #2d3748;
  margin-bottom: 0.8rem;
  font-size: 1.2rem;
  font-weight: 600;
}

.step-content p {
  color: #666;
  line-height: 1.6;
  margin-bottom: 0;
}

.step-content p strong {
  color: #4a5568;
  font-weight: 600;
}

/* Disclaimer */
.disclaimer {
  background: #fff5f5;
  border: 1px solid #fed7d7;
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.disclaimer h3 {
  color: #c53030;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.disclaimer p {
  color: #744210;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.disclaimer p:last-child {
  margin-bottom: 0;
}

/* Footer */
footer {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  color: white;
  padding: 2rem 0;
  text-align: center;
}

.contact-info {
  margin-top: 1rem;
}

.contact-info p {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  header h1 {
    font-size: 2rem;
  }

  header p {
    font-size: 1rem;
  }

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

  .bot-footer {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }

  .download-btn {
    justify-content: center;
  }

  main {
    margin: 1rem;
    padding: 1.5rem;
  }
}

/* Loading Animation */
.download-btn.loading {
  background: #ccc;
  cursor: not-allowed;
}

.download-btn.loading::after {
  content: "";
  width: 16px;
  height: 16px;
  border: 2px solid #fff;
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: 0.5rem;
}

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