/* Tutorial Styles - Consistent with Gallery */

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

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background-color: #f5f5f5;
  color: #1a1a1a;
  line-height: 1.5;
}

/* Header */
.header {
  background: #222;
  color: #fafafa;
  padding: 16px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  position: relative;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fafafa;
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.2s ease;
  z-index: 1;
}

.back-btn:hover {
  opacity: 0.8;
}

.title {
  font-size: 1.5rem;
  margin: 0;
  letter-spacing: 1px;
  text-align: center;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  pointer-events: none;
}

/* Main Content */
.main {
  padding: 20px 20px;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  gap: 24px;
}

/* General Section Styling */
.section {
  background: white;
  padding: 40px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.section h2 {
  margin: 0 0 20px 0;
  font-size: 1.75rem;
  color: #1a1a1a;
  text-align: left;
  font-weight: 600;
}

/* Steps Section */
.steps-list {
  list-style: decimal;
  padding-left: 24px;
  margin: 0;
}

.steps-list li {
  margin-bottom: 8px;
  color: #3d4048;
  font-size: 1rem;
  line-height: 1.6;
}

/* Quick Demo Section */
.demo-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.demo-item h4 {
  margin: 0 0 8px 0;
  font-size: 1.2rem;
  color: #1a1a1a;
  font-weight: 600;
}

.demo-item p {
  margin: 0 0 16px 0;
  color: #3d4048;
  font-size: 0.95rem;
  line-height: 1.6;
}

.demo-item img {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  display: block;
  margin: 0 auto;
}

/* Control Manuals Section */
.control-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(2, 1fr);
}

.control-item {
  background: #f9fafb;
  padding: 24px;
  border-radius: 8px;
  transition: transform 0.2s ease;
}

.control-item:hover {
  transform: translateY(-2px);
}

.control-item h5 {
  margin: 0 0 16px 0;
  color: #1a1a1a;
  font-size: 1.1rem;
  font-weight: 600;
}

.control-item ul {
  margin: 0;
  padding-left: 16px;
  color: #6b7280;
  font-size: 0.9rem;
}

.control-item li {
  margin-bottom: 8px;
  line-height: 1.5;
}

.control-item strong {
  color: #1a1a1a;
  font-weight: 600;
}

/* Footer */
.footer {
  background: #333;
  color: #ccc;
  text-align: center;
  padding: 6px 12px;
  flex-shrink: 0;
  font-size: 0.875rem;
}

.footer p {
  margin: 0;
}

.footer a {
  color: #fff;
  text-decoration: none;
}

.footer img {
  height: 0.9em;
  vertical-align: middle;
  margin-right: 4px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .main {
    padding: 20px 16px;
    gap: 32px;
  }
  
  .section {
    padding: 24px;
  }
  
  .section h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
  }
  
  .control-grid {
    grid-template-columns: 1fr;
  }
  
  .demo-list {
    gap: 32px;
  }
  
  .header {
    padding: 8px 16px;
  }
  
  .title {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  .section {
    padding: 20px;
  }
  
  .control-item {
    padding: 20px;
  }
  
  .steps-list {
    padding-left: 20px;
  }
}