/**
 * John Tromp Lambda Diagrams Workstation - Layout Styles
 * Workspace grid, header, sidebar panel, and canvas viewport
 */

body {
  background-color: var(--bg-base);
  color: var(--text);
  font-family: var(--font-sans);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Header */
header {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  padding: 8px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
  z-index: 20;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-light);
  background: var(--bg-subpanel);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-code);
  font-weight: 700;
  font-size: 19px;
  color: var(--text);
}

.brand-titles h1 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.2px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge-tag {
  font-size: 10px;
  background: var(--bg-subpanel);
  color: var(--text-muted);
  padding: 1px 6px;
  border-radius: 3px;
  border: 1px solid var(--border);
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.brand-titles p {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 1px;
}

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

/* Workspace Layout */
.workspace-layout {
  display: flex;
  flex: 1;
  height: calc(100vh - 51px);
  overflow: hidden;
}

/* Sidebar Panel */
.sidebar-panel {
  width: 440px;
  min-width: 360px;
  max-width: 520px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex-shrink: 0;
}

.sidebar-card {
  padding: 16px;
  border-bottom: 1px solid var(--border);
}

.card-header-row {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-dim);
  font-weight: 600;
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Canvas Viewport */
.canvas-viewport-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--canvas-bg);
  position: relative;
  overflow: hidden;
}

.canvas-top-bar {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  padding: 6px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
}

/* Responsive adjustments */
@media (max-width: 960px) {
  .workspace-layout {
    flex-direction: column;
  }
  .sidebar-panel {
    width: 100%;
    max-width: none;
    height: 48vh;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .canvas-viewport-wrap {
    height: 52vh;
  }
}