/**
 * Data Visualizer Styles
 *
 * Uses CSS variables for host theme integration.
 * These variables are provided by the MCP host and adapt to dark/light mode.
 */

:root {
  /* Default theme values (can be overridden by host) */
  --color-background-primary: #ffffff;
  --color-background-secondary: #f5f5f5;
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #666666;
  --color-border-primary: #e0e0e0;
  --color-accent: #3b82f6;
  --border-radius-md: 8px;
  --border-radius-sm: 4px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background-primary: #1a1a1a;
    --color-background-secondary: #2d2d2d;
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-border-primary: #404040;
    --color-accent: #60a5fa;
  }
}

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

html, body {
  height: 100%;
  margin: 0;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  line-height: 1.5;
}

.container {
  padding: 12px;
  max-width: 100%;
  height: 100%;
  min-height: 400px;
  display: flex;
  flex-direction: column;
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: var(--color-text-secondary);
}

.error {
  padding: 16px;
  background: #fee2e2;
  border: 1px solid #fca5a5;
  border-radius: var(--border-radius-md);
  color: #dc2626;
}

/* ============================================
   App Header
   ============================================ */

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--color-border-primary);
}

.header-left,
.header-right {
  display: flex;
  gap: 4px;
}

/* Icon Button */
.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border-primary);
  border-radius: var(--border-radius-md);
  background: var(--color-background-primary);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.icon-btn:hover {
  background: var(--color-background-secondary);
  color: var(--color-text-primary);
}

.icon-btn.active {
  background: var(--color-text-primary);
  color: var(--color-background-primary);
  border-color: var(--color-text-primary);
}

/* ============================================
   App Body Layout
   ============================================ */

.app-body {
  display: flex;
  gap: 16px;
  flex: 1;
  min-height: 320px;
}

.main-content {
  flex: 1;
  min-width: 0;
  min-height: 300px;
  overflow: auto;
}

/* ============================================
   Settings Sidebar
   ============================================ */

.settings-sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--color-background-secondary);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width 0.2s ease;
}

.sidebar-collapsed {
  width: 44px;
  flex-shrink: 0;
  background: var(--color-background-secondary);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0;
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  border-bottom: 1px solid var(--color-border-primary);
}

.sidebar-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.sidebar-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: var(--border-radius-sm);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.sidebar-toggle:hover {
  background: var(--color-background-primary);
  color: var(--color-text-primary);
}

.sidebar-content {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

/* ============================================
   Control Elements
   ============================================ */

.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chart-type-buttons {
  display: flex;
  gap: 4px;
}

.chart-type-btn {
  flex: 1;
  padding: 6px 8px;
  border: 1px solid var(--color-border-primary);
  border-radius: var(--border-radius-sm);
  background: var(--color-background-primary);
  color: var(--color-text-primary);
  cursor: pointer;
  font-size: 12px;
  font-family: var(--font-sans);
  transition: all 0.15s ease;
}

.chart-type-btn:hover {
  background: var(--color-background-secondary);
}

.chart-type-btn.active {
  background: var(--color-text-primary);
  color: var(--color-background-primary);
  border-color: var(--color-text-primary);
}

.control-select {
  padding: 6px 8px;
  border: 1px solid var(--color-border-primary);
  border-radius: var(--border-radius-sm);
  background: var(--color-background-primary);
  color: var(--color-text-primary);
  font-size: 12px;
  font-family: var(--font-sans);
  cursor: pointer;
  width: 100%;
}

.control-select:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* ============================================
   Drag and Drop Zones
   ============================================ */

.drop-zone-wrapper {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.drop-zone {
  min-height: 60px;
  padding: 8px;
  border: 2px dashed var(--color-border-primary);
  border-radius: var(--border-radius-sm);
  background: var(--color-background-primary);
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: all 0.15s ease;
}

.drop-zone.empty {
  align-items: center;
  justify-content: center;
}

.drop-zone.drag-over {
  border-color: var(--color-accent);
  background: rgba(59, 130, 246, 0.05);
}

.drop-hint {
  font-size: 11px;
  color: var(--color-text-secondary);
}

.draggable-field {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  background: var(--color-background-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--border-radius-sm);
  font-size: 12px;
  cursor: grab;
  transition: all 0.15s ease;
}

.draggable-field:hover {
  border-color: var(--color-text-secondary);
}

.draggable-field:active {
  cursor: grabbing;
}

.drag-handle {
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

/* ============================================
   Chart Styles
   ============================================ */

.chart-container {
  background: var(--color-background-secondary);
  border-radius: var(--border-radius-md);
  padding: 16px;
  min-height: 332px; /* 300px chart + 32px padding */
}

.chart-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  background: var(--color-background-secondary);
  border-radius: var(--border-radius-md);
  color: var(--color-text-secondary);
  font-size: 14px;
}

/* ============================================
   Table Styles
   ============================================ */

.table-container {
  overflow-x: auto;
  border: 1px solid var(--color-border-primary);
  border-radius: var(--border-radius-md);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--color-border-primary);
}

th {
  background: var(--color-background-secondary);
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

th:hover {
  background: var(--color-border-primary);
}

tr:hover {
  background: var(--color-background-secondary);
}

/* ============================================
   Dark Mode Adjustments
   ============================================ */

@media (prefers-color-scheme: dark) {
  .error {
    background: #450a0a;
    border-color: #7f1d1d;
    color: #fca5a5;
  }

  .drop-zone.drag-over {
    background: rgba(96, 165, 250, 0.1);
  }
}

/* ============================================
   Legacy Styles (kept for compatibility)
   ============================================ */

.json-container {
  background: var(--color-background-secondary);
  border-radius: var(--border-radius-md);
  padding: 16px;
  font-family: "SF Mono", Monaco, "Courier New", monospace;
  font-size: 13px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Old view switcher (kept for potential fallback) */
.view-switcher {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.view-btn {
  padding: 8px 16px;
  border: 1px solid var(--color-border-primary);
  border-radius: var(--border-radius-md);
  background: var(--color-background-secondary);
  color: var(--color-text-primary);
  cursor: pointer;
  font-size: 14px;
  font-family: var(--font-sans);
  transition: background-color 0.15s, color 0.15s;
}

.view-btn:hover {
  background: var(--color-border-primary);
}

.view-btn.active {
  background: var(--color-text-primary);
  color: var(--color-background-primary);
  border-color: var(--color-text-primary);
}