/* Word map */
:root {
  --wm-0: #60a5fa; --wm-1: #f87171; --wm-2: #34d399; --wm-3: #fbbf24; --wm-4: #c084fc; --wm-5: #94a3b8;
}
:root[data-theme="light"] {
  --wm-0: #2563eb; --wm-1: #dc2626; --wm-2: #059669; --wm-3: #b45309; --wm-4: #7c3aed; --wm-5: #64748b;
}
.wm-g0 { --wm: var(--wm-0); } .wm-g1 { --wm: var(--wm-1); } .wm-g2 { --wm: var(--wm-2); }
.wm-g3 { --wm: var(--wm-3); } .wm-g4 { --wm: var(--wm-4); } .wm-g5 { --wm: var(--wm-5); }

.wm-search { display: flex; gap: 8px; max-width: 520px; margin-bottom: 10px; }
.wm-search input { flex: 1; min-width: 0; }
.wm-starts { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 12px; }
.wm-chip { padding: 4px 12px; border-radius: 999px; font-size: .9em; }
.wm-trail { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 12px; font-size: .9em; }
.wm-trail button { border: 0; background: none; padding: 2px 4px; color: var(--primary-text); text-decoration: underline; }
.wm-trail [aria-current] { font-weight: 700; }

.wm-layout { display: grid; grid-template-columns: minmax(220px, 280px) 1fr; gap: 18px; align-items: start; }
.wm-layout[hidden] { display: none; }
.wm-detail { display: flex; flex-direction: column; gap: 10px; position: sticky; top: 12px; }
.wm-word { display: flex; align-items: center; gap: 8px; }
.wm-word b { font-size: 1.8em; overflow-wrap: anywhere; }
.wm-vi { margin: 0; font-size: 1.05em; }
.wm-saved { margin: 0; color: var(--success-text); font-weight: 600; }
.wm-meaning { display: flex; flex-direction: column; gap: 4px; font-size: .9em; font-weight: 600; color: var(--text-2); }
.wm-youglish { font-size: .9em; }
.wm-credit { font-size: .85em; margin-top: 14px; }

/* the map: absolutely placed words over lines from the middle */
.wm-map {
  position: relative; height: 560px; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
}
.wm-lines { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.wm-lines line { stroke: var(--wm); stroke-opacity: .35; stroke-width: 1.5; }
.wm-center {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); z-index: 1;
  padding: 10px 18px; border-radius: 999px; font-size: 1.3em; font-weight: 700;
  background: var(--primary); color: var(--on-primary); box-shadow: var(--shadow);
}
.wm-group { display: contents; }
.wm-group h3 { display: none; }
.wm-node {
  position: absolute; transform: translate(-50%, -50%); z-index: 1; white-space: nowrap;
  padding: 4px 11px; border-radius: 999px; border: 1.5px solid var(--wm); background: var(--surface);
  color: var(--text); font-weight: 600; transition: transform .15s, background .15s;
}
.wm-node:hover, .wm-node:focus-visible { background: color-mix(in srgb, var(--wm) 18%, var(--surface)); transform: translate(-50%, -50%) scale(1.08); z-index: 2; }
.wm-node.wm-common { font-size: 1.05em; padding: 6px 14px; }
.wm-node.wm-mid { font-size: .92em; }
.wm-node.wm-rare { font-size: .8em; font-weight: 500; color: var(--text-2); }
.wm-node.in-deck::after { content: ' ★'; color: var(--warn); }
.wm-legend {
  position: absolute; left: 10px; top: 8px; z-index: 3; list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: .78em; color: var(--muted);
}
.wm-legend li::before { content: ''; display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--wm); margin-right: 5px; }

/* narrow screens: one list of words per group */
.wm-map.wm-list { height: auto; padding: 14px; display: flex; flex-direction: column; gap: 6px; }
.wm-map.wm-list .wm-legend, .wm-map.wm-list .wm-lines { display: none; }
.wm-map.wm-list .wm-center { position: static; transform: none; align-self: flex-start; font-size: 1.1em; }
.wm-map.wm-list .wm-group { display: flex; flex-wrap: wrap; gap: 6px; }
.wm-map.wm-list .wm-group h3 { display: block; width: 100%; margin: 8px 0 0; font-size: .85em; color: var(--wm); }
.wm-map.wm-list .wm-node { position: static; transform: none; }
.wm-map.wm-list .wm-node:hover, .wm-map.wm-list .wm-node:focus-visible { transform: none; }

@media (max-width: 860px) {
  .wm-layout { grid-template-columns: 1fr; }
  .wm-detail { position: static; }
}
@media (prefers-reduced-motion: reduce) { .wm-node { transition: none; } }