examples/customer-segmentation-server/src/mcp-app.css

/* Default fallback values for host style variables */
:root {
  color-scheme: light dark;

  /* Font families */
  --font-sans: system-ui, -apple-system, sans-serif;

  /* Background colors */
  --color-background-primary: light-dark(#ffffff, #111827);
  --color-background-secondary: light-dark(#f9fafb, #1f2937);
  --color-background-tertiary: light-dark(#f3f4f6, #374151);

  /* Text colors */
  --color-text-primary: light-dark(#1f2937, #f9fafb);
  --color-text-secondary: light-dark(#6b7280, #9ca3af);
  --color-text-tertiary: light-dark(#9ca3af, #6b7280);

  /* Border colors */
  --color-border-primary: light-dark(#e5e7eb, #374151);
  --color-border-secondary: light-dark(#d1d5db, #4b5563);

  /* Ring colors */
  --color-ring-info: light-dark(#2563eb, #3b82f6);

  /* Border radius */
  --border-radius-sm: 6px;
  --border-radius-md: 8px;
  --border-radius-full: 9999px;

  /* Border width */
  --border-width-regular: 1px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);

  /* App-specific colors (not from host) */
  --color-enterprise: light-dark(#1e40af, #3b82f6);
  --color-midmarket: light-dark(#0d9488, #14b8a6);
  --color-smb: light-dark(#059669, #10b981);
  --color-startup: light-dark(#6366f1, #818cf8);
}

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  overflow: hidden;
}

.main {
  border-radius: var(--border-radius-md);
  background: var(--color-background-primary);
  width: 100%;
  height: 600px;
  margin: 0 auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: hidden;
}

/* Header - ~40px */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  height: 36px;
  flex-shrink: 0;
}

.title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  flex-shrink: 0;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Controls section - ~36px */
.controls-section {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 32px;
  flex-shrink: 0;
}

.select-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.select {
  padding: 4px 8px;
  font-size: 0.8125rem;
  border: var(--border-width-regular) solid var(--color-border-primary);
  border-radius: var(--border-radius-sm);
  background: var(--color-background-secondary);
  color: var(--color-text-primary);
  cursor: pointer;
}

.select:focus {
  outline: 2px solid var(--color-ring-info);
  outline-offset: 1px;
}

/* Chart section - ~420px */
.chart-section {
  flex: 1;
  min-height: 0;
  background: var(--color-background-secondary);
  border-radius: var(--border-radius-md);
  padding: 8px;
  border: var(--border-width-regular) solid var(--color-border-primary);
}

.chart-container {
  position: relative;
  width: 100%;
  height: 100%;
}

/* Legend section - ~36px */
.legend-section {
  height: 32px;
  flex-shrink: 0;
}

.legend {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  height: 100%;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  cursor: pointer;
  padding: 4px 10px;
  border-radius: var(--border-radius-full);
  border: var(--border-width-regular) solid var(--color-border-primary);
  background: var(--color-background-secondary);
  transition: all 0.15s ease;
}

.legend-item:hover {
  border-color: var(--color-text-secondary);
  box-shadow: var(--shadow-sm);
}

.legend-item.hidden {
  opacity: 0.5;
  background: transparent;
}

.legend-item.hidden .legend-label {
  text-decoration: line-through;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.legend-label {
  font-weight: 500;
}

.legend-count {
  color: var(--color-text-secondary);
}

/* Detail section - ~44px */
.detail-section {
  height: 40px;
  flex-shrink: 0;
}

.detail-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  height: 100%;
  background: var(--color-background-secondary);
  border-radius: var(--border-radius-sm);
  padding: 0 12px;
  border: var(--border-width-regular) solid var(--color-border-primary);
  font-size: 0.8125rem;
}

.detail-placeholder {
  color: var(--color-text-secondary);
}

.detail-name {
  font-weight: 600;
}

.detail-segment {
  padding: 2px 8px;
  border-radius: var(--border-radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  color: white;
}

.detail-segment.enterprise { background: var(--color-enterprise); }
.detail-segment.mid-market { background: var(--color-midmarket); }
.detail-segment.smb { background: var(--color-smb); }
.detail-segment.startup { background: var(--color-startup); }

.detail-metric {
  color: var(--color-text-secondary);
}

.detail-metric strong {
  color: var(--color-text-primary);
  font-weight: 600;
}