/* =====================================================================
   Swing (/puzzles/swing) — SVG-Brett, Status, Hinweiszeile.
   Idee aus der Spec: die Präzision einer Bahnhofsuhr — Steine wie
   Uhrzeiger, die um ihre Mitte schwenken; Rot nur für doppelte Zahlen.
   Flächen, Linien und Steine kommen aus den Site-Themes (--card, --line,
   --panel, --ink), das Brett geht also in allen sechs Farbschemata mit;
   der Rahmen folgt der Kartensprache der Site. Alles drumherum aus
   puzzles/spiel.css + main.css. Klassen/Hooks setzt assets/js/puzzles/swing.js.
   ===================================================================== */

.swing {
  --sw-red: #d8261c;
  --sw-grid: var(--line);
  --sw-pivot: color-mix(in oklab, var(--panel) 55%, var(--card));
  --sw-reach: color-mix(in oklab, var(--sw-red) 14%, var(--card));
}

:root[data-theme="dunkel"] .swing {
  --sw-red: #ff5a4e;
  --sw-reach: color-mix(in oklab, var(--sw-red) 20%, var(--card));
}

.swing-sizes {
  width: fit-content;
  margin-top: 14px;
}

/* ---- status: moves, par, filled squares ---- */

.swing-status {
  display: flex;
  align-items: flex-end;
  gap: 26px;
  margin: 24px 0 18px;
}

.swing-status__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.swing-status .section-label {
  line-height: 1;
}

.swing-count {
  font-size: 34px;
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

/* ---- board (SVG, 100 units per square) ---- */

.swing-board {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: 0 6px 18px rgba(60, 40, 20, .12);
  -webkit-tap-highlight-color: transparent;
}

/* space is reserved before the JS builds the board — no empty frame */
.swing-board:empty {
  visibility: hidden;
}

.swing-board svg {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.swing-sq {
  fill: var(--card);
  stroke: var(--sw-grid);
  stroke-width: 2;
}

.swing-sq.is-pivot {
  fill: var(--sw-pivot);
}

.swing-sq.is-reach {
  fill: var(--sw-reach);
  cursor: pointer;
}

.swing-socket {
  fill: var(--sw-grid);
  pointer-events: none;
}

/* arms: bar from the centre, tip disc with the arm's number */
.swing-bar {
  stroke: var(--ink);
  stroke-width: 13;
  stroke-linecap: round;
}

.swing-tip circle {
  fill: var(--card);
  stroke: var(--ink);
  stroke-width: 5;
}

.swing-tip text {
  fill: var(--ink);
}

.swing-tip.is-bad circle {
  stroke: var(--sw-red);
}

.swing-tip.is-bad text {
  fill: var(--sw-red);
}

.swing-num {
  font-family: inherit;
  font-size: 34px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
}

/* pieces: centre disc, folded-arm badge, focus/selection ring */
.swing-piece {
  cursor: pointer;
  outline: none;
}

.swing-disc {
  fill: var(--ink);
}

.swing-piece.is-bad .swing-disc {
  fill: var(--sw-red);
}

.swing-disc-num {
  fill: var(--card);
}

.swing-badge circle {
  fill: var(--card);
  stroke: var(--ink);
  stroke-width: 3.5;
}

.swing-badge text {
  fill: var(--ink);
  font-size: 19px;
}

.swing-piece.is-set .swing-badge {
  display: none;
}

.swing-ring {
  fill: none;
  stroke: var(--accent);
  stroke-width: 4;
  opacity: 0;
}

.swing-piece.is-focused .swing-ring,
.swing-piece.is-selected .swing-ring {
  opacity: 1;
}

.swing-piece.is-selected .swing-ring {
  stroke-dasharray: 7 6;
}

/* invalid swing */
.swing-shake {
  animation: swing-shake 280ms ease-in-out;
}

@keyframes swing-shake {
  0%, 100% { transform: translateX(0); }
  25%      { transform: translateX(-5px); }
  75%      { transform: translateX(5px); }
}

/* ---- hint line under the board (two lines reserved: no jumping) ---- */

.swing-hint {
  margin: 12px 0 0;
  min-height: 3.2em;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--sub);
  text-align: center;
  text-wrap: balance;
}

/* solved: the hint is empty — drop its reserved lines above the result card */
.swing:has([data-swing="result"]:not([hidden])) .swing-hint {
  min-height: 0;
  margin: 0;
}

@media (prefers-reduced-motion: reduce) {
  .swing-shake {
    animation: none;
  }
}