/* Mindgen component styles
 * Configuration (CSS variables):
 *  --mg-primary: base hue for nodes and links.
 *  --mg-accent: accent hue for collapsed nodes and toggles.
 *  --mg-radius: corner radius for nodes.
 *  --mg-shadow: box-shadow applied to nodes.
 *  --mg-link: stroke color for connecting lines.
 *
 * Usage: override these on :root or a wrapper.
 * Example:
 *   :root { --mg-primary: #0ea5e9; --mg-accent: #f59e0b; }
 */
:root {
  --mg-primary: var(--bs-primary, #0d6efd);
  --mg-accent: var(--bs-danger, #dc3545);
  --mg-radius: 6px;
  --mg-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  --mg-link: #999;
  --mg-lightness: 0.95;

  /* Derived colors */
  --mg-primary-dark: color-mix(in oklch, var(--mg-primary) 85%, black);
  --mg-primary-light: color-mix(in oklch, var(--mg-primary) 55%, white);
  --mg-bg-0: oklch(from var(--mg-primary) var(--mg-lightness) c calc(h + 0));
  --mg-bg-1: oklch(from var(--mg-primary) var(--mg-lightness) c calc(h + 60));
  --mg-bg-2: oklch(from var(--mg-primary) var(--mg-lightness) c calc(h + 120));
  --mg-bg-3: oklch(from var(--mg-primary) var(--mg-lightness) c calc(h + 180));
  --mg-collapsed-bg: color-mix(in oklch, var(--mg-accent) 10%, var(--bs-body-bg, white));
}

/* In dark mode, use lightness as-is. */
[data-bs-theme="dark"] {
  --mg-lightness: l;
}

.node {
  position: absolute;
  padding: 8px 12px;
  border: 2px solid var(--mg-primary);
  border-radius: var(--mg-radius);
  background: #fff;
  cursor: move;
  user-select: none;
  font-size: 14px;
  transition: none;
  box-shadow: var(--mg-shadow);
  max-width: 15rem;
}

.node.root {
  border-color: var(--mg-primary-dark);
  background: var(--mg-bg-0);
  font-weight: 600;
  z-index: 1000;
}
.node.depth-1 {
  border-color: var(--mg-primary);
  background: var(--mg-bg-1);
  z-index: 900;
}
.node.depth-2 {
  border-color: var(--mg-primary-light);
  background: var(--mg-bg-2);
  z-index: 800;
}
.node.depth-3 {
  border-color: var(--mg-primary-light);
  background: var(--mg-bg-3);
  z-index: 700;
}

/* Collapsed nodes stand out */
.node.collapsed {
  border-color: var(--mg-accent);
  background: var(--mg-collapsed-bg);
}

/* Pinned visual hint */
.node.pinned {
  box-shadow:
    0 0 0 2px rgba(255, 215, 0, 0.35) inset,
    0 2px 4px rgba(0, 0, 0, 0.1);
}

path.link {
  fill: none;
  stroke: var(--mg-link);
  stroke-width: 1.5;
  opacity: 0.6;
}

.node-toggle {
  position: absolute;
  right: -12px;
  bottom: -12px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--mg-primary-light), var(--mg-primary));
  color: #fff;
  border: 2px solid #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  pointer-events: auto;
  user-select: none;
}
.node-toggle:hover {
  transform: scale(1.05);
}

/* Toggle color when parent is collapsed */
.node.collapsed .node-toggle {
  background: radial-gradient(circle at 30% 30%, color-mix(in oklch, var(--mg-accent) 50%, white), var(--mg-accent));
}

/* Demo card styling */
.demo-card {
  transition: all 0.2s ease;
}

.demo-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
}

.demo-card.border-primary {
  border-color: var(--bs-primary) !important;
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}