/* ===== Mind Map ===== */
.mindmap { position: relative; min-height: calc(100vh - 64px); padding: 24px 32px; display: flex; flex-direction: column; }
.mindmap__head {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center; margin-bottom: 16px;
}
.mindmap__head-center { text-align: center; }
.mindmap__title { font-size: 56px; margin: 8px 0 4px; letter-spacing: -0.02em; font-weight: 600; }
.mindmap__sub { color: var(--ink-dim); margin: 0; font-size: 13px; font-family: var(--font-mono); letter-spacing: 0.04em; }
.mindmap__head > :first-child { justify-self: start; width: fit-content; }
.mindmap__head > :last-child { justify-self: end; }

.mindmap__stage {
  position: relative;
  flex: 1;
  min-height: 600px;
  border: 1px solid var(--line);
  background:
    radial-gradient(ellipse at 50% 50%, rgba(0, 240, 255, 0.06), transparent 60%),
    rgba(3, 6, 13, 0.5);
  overflow: hidden;
  z-index: 2;
}
.mindmap__svg { position: absolute; inset: 0; pointer-events: none; }

.mm-node {
  --node-color: #00f0ff;
  position: absolute;
  width: 128px; height: 128px;
  margin-left: -64px; margin-top: -64px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 3;
  transition: opacity 0.3s ease;
  padding-top: 28px;
}

.mm-node__ring {
  position: absolute; inset: 12px;
  border: 1px solid var(--node-color);
  border-radius: 50%;
  background: rgba(3, 6, 13, 0.92);
  box-shadow: 0 0 18px color-mix(in oklab, var(--node-color) 50%, transparent),
              inset 0 0 18px color-mix(in oklab, var(--node-color) 18%, transparent);
  transition: inset 0.25s ease, box-shadow 0.25s ease;
}
.mm-node__ring--2 {
  inset: 0;
  border-style: dashed;
  background: transparent;
  box-shadow: none;
  opacity: 0.55;
  animation: ringDrift 16s linear infinite;
}
@keyframes ringDrift { to { transform: rotate(360deg); } }
.mm-node:hover .mm-node__ring,
.mm-node.is-hover .mm-node__ring {
  inset: 4px;
  box-shadow: 0 0 36px var(--node-color),
              inset 0 0 22px color-mix(in oklab, var(--node-color) 32%, transparent);
}
.mm-node:hover { z-index: 6; }

.mm-node__arc {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  overflow: visible;
}
.mm-node__arc-text {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  filter: drop-shadow(0 0 4px color-mix(in oklab, var(--node-color) 40%, transparent));
}
.mm-node__arc-text--tool {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: none;
  filter: drop-shadow(0 0 5px rgba(0, 0, 0, 0.7));
}
.mm-node__arc-text--root {
  font-size: 10.5px;
}
.mm-node__glyph {
  position: relative;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 28px;
  color: var(--node-color);
  text-shadow: 0 0 12px var(--node-color);
  line-height: 1;
}
.mm-node__count {
  position: relative;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
  margin-top: 6px;
  text-align: center;
  max-width: 80%;
  line-height: 1.15;
}

/* Variants */
.mm-node--root {
  width: 160px; height: 160px;
  margin-left: -80px; margin-top: -80px;
  z-index: 4;
}
.mm-node--root .mm-node__glyph { font-size: 42px; }
.mm-node--root .mm-node__count { opacity: 0.7; }

.mm-node--tool .mm-node__count { color: var(--lime); }

.mm-node--back .mm-node__ring {
  border-color: var(--magenta);
  box-shadow: 0 0 18px rgba(255, 43, 214, 0.4),
              inset 0 0 14px rgba(255, 43, 214, 0.15);
}
.mm-node--back .mm-node__glyph { color: var(--magenta); text-shadow: 0 0 12px var(--magenta); }
.mm-node--back .mm-node__count { color: var(--magenta); opacity: 0.6; }

/* Hover preview */
.map-preview {
  position: absolute;
  bottom: 24px; left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  background: rgba(3, 6, 13, 0.95);
  border: 1px solid var(--cyan);
  padding: 12px 18px;
  min-width: 360px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  pointer-events: none;
  animation: previewIn 0.2s ease;
}
@keyframes previewIn { from { opacity: 0; transform: translate(-50%, 6px); } to { opacity: 1; transform: translate(-50%, 0); } }
.map-preview__head { font-size: 16px; font-weight: 700; letter-spacing: 0; font-family: var(--font-display); }
.map-preview__tag { color: var(--ink-dim); margin-top: 2px; }
.map-preview__line { margin-top: 8px; color: var(--ink); font-size: 11px; line-height: 1.4; letter-spacing: 0.02em; }
.map-preview__line span { color: var(--ink-faint); letter-spacing: 0.14em; margin-right: 6px; }
.map-preview__hint { margin-top: 10px; color: var(--magenta); letter-spacing: 0.16em; font-size: 10px; }

.mindmap__legend {
  position: absolute;
  top: 18px; left: 18px;
  z-index: 5;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--line);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
}
.mindmap__legend-head { color: var(--cyan); margin-bottom: 6px; letter-spacing: 0.16em; }
.mindmap__legend-row { display: flex; align-items: center; gap: 8px; padding: 2px 0; white-space: nowrap; }
.mindmap__legend-row .dot { width: 8px; height: 8px; border-radius: 50%; box-shadow: 0 0 6px currentColor; }

.mindmap__stats {
  position: absolute;
  bottom: 18px; right: 18px;
  z-index: 5;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--line);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
  display: flex; flex-direction: column; gap: 4px;
}
.mindmap__stats b { color: var(--cyan); margin-right: 6px; }