/* ============================================
   Graph Font System (체계 글꼴체)
   ============================================ */

/* Graphik Font Family */
@font-face {
  font-family: 'Graphik';
  src: url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Regular.eot');
  src: url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Regular.eot?#iefix') format('embedded-opentype'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Regular.woff2') format('woff2'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Regular.woff') format('woff'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Graphik';
  src: url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Medium.eot');
  src: url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Medium.eot?#iefix') format('embedded-opentype'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Medium.woff2') format('woff2'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Medium.woff') format('woff'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Medium.ttf') format('truetype');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Graphik';
  src: url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Bold.eot');
  src: url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Bold.eot?#iefix') format('embedded-opentype'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Bold.woff2') format('woff2'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Bold.woff') format('woff'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Graphik';
  src: url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Black.eot');
  src: url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Black.eot?#iefix') format('embedded-opentype'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Black.woff2') format('woff2'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Black.woff') format('woff'),
       url('https://fonts.gstatic.com/s/graphik/v11/Graphik-Black.ttf') format('truetype');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

/* ============================================
   Chart.js Font Configuration
   ============================================ */


/* ============================================
   Graphik Font Utility Classes
   ============================================ */

.font-graphik {
  font-family: 'Graphik', Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.font-graphik-regular {
  font-family: 'Graphik', Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 400;
}

.font-graphik-medium {
  font-family: 'Graphik', Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 500;
}

.font-graphik-bold {
  font-family: 'Graphik', Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 700;
}

.font-graphik-black {
  font-family: 'Graphik', Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 900;
}

/* ============================================
   Connection Troubleshooting Guide
   ============================================ */

.connection-guide {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--card-bg);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  z-index: 3000;
  max-width: 600px;
  width: 90%;
  display: none;
  border: 1px solid var(--border-color);
  font-family: 'Graphik', Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.connection-guide.show {
  display: block;
  animation: modalFadeIn 0.3s ease;
}

.connection-guide h2 {
  font-family: 'Graphik', Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 700;
  font-size: 1.75rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.connection-guide .step {
  background: var(--bg-primary);
  border: 2px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  transition: all 0.2s ease;
}

.connection-guide .step:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.connection-guide .step-number {
  font-family: 'Graphik', Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--accent-500);
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.375rem;
  background: var(--accent-50);
}

.connection-guide .step-content {
  flex: 1;
}

.connection-guide .step-title {
  font-family: 'Graphik', Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.connection-guide .step-description {
  font-family: 'Graphik', Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.connection-guide .step-code {
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  background: var(--bg-tertiary);
  color: var(--accent-500);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 0.5rem;
  display: inline-block;
}

.connection-guide .close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  width: 2.5rem;
  height: 2.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.connection-guide .close-btn:hover {
  background: var(--accent-500);
  color: white;
  transform: scale(1.05);
}