/* ==========================================================================
   Dots & Boxes — only what's unique to this game.
   ========================================================================== */

.game[data-game="dots-and-boxes"] {
  --game-color: var(--cat-classic);
  max-width: max(300px, min(560px, calc(100svh - 220px)));
}
.game[data-game="dots-and-boxes"] .game__stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-4) var(--space-5);
  background:
    linear-gradient(transparent 23px, color-mix(in srgb, var(--sky) 22%, transparent) 24px) 0 0 / 100% 24px,
    var(--bg-raised);
}
.db-status { margin: 0; min-height: 1.5em; font-family: var(--font-display); font-weight: 700; text-align: center; }

.db-wrap { width: 100%; padding: 5%; }
.db-board {
  --cell: 25%;          /* 100% / 4 boxes */
  position: relative;
  width: 100%;
  aspect-ratio: 1;
}

.db-dot {
  position: absolute;
  left: calc(var(--c) * var(--cell));
  top: calc(var(--r) * var(--cell));
  width: 16px; height: 16px;
  translate: -50% -50%;
  border-radius: 50%;
  background: var(--ink-900);
  border: 3px solid var(--bg-raised);
  box-sizing: content-box;
  z-index: 3;
  pointer-events: none;
}
[data-theme="dark"] .db-dot { background: var(--cream-50); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .db-dot { background: var(--cream-50); } }

/* Lines: wide invisible hit areas with a thin dashed hint inside */
.db-line {
  position: absolute;
  padding: 0;
  border: 0;
  background: transparent;
  z-index: 2;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.db-line--h { left: calc(var(--c) * var(--cell)); top: calc(var(--r) * var(--cell)); width: var(--cell); height: 34px; translate: 0 -50%; }
.db-line--v { left: calc(var(--c) * var(--cell)); top: calc(var(--r) * var(--cell)); width: 34px; height: var(--cell); translate: -50% 0; }
.db-line::before {
  content: "";
  position: absolute;
  border-radius: 4px;
  background: repeating-linear-gradient(90deg, color-mix(in srgb, var(--line) 22%, transparent) 0 6px, transparent 6px 12px);
  transition: background var(--dur-fast), transform var(--dur-med) var(--ease-spring);
}
.db-line--h::before { left: 10px; right: 10px; top: 50%; height: 6px; translate: 0 -50%; }
.db-line--v::before { top: 10px; bottom: 10px; left: 50%; width: 6px; translate: -50% 0; background: repeating-linear-gradient(0deg, color-mix(in srgb, var(--line) 22%, transparent) 0 6px, transparent 6px 12px); }
.db-line:hover:not(:disabled)::before,
.db-line:focus-visible::before { background: color-mix(in srgb, var(--tomato) 55%, transparent); }
.db-board.is-cpu-turn .db-line:not(:disabled) { cursor: wait; }
.db-line:focus-visible { outline: none; }
.db-line.is-you::before, .db-line.is-cpu::before { animation: line-in 0.25s var(--ease-spring); }
.db-line.is-you::before { background: var(--tomato); }
.db-line.is-cpu::before { background: var(--mustard); }
.db-line:disabled { cursor: default; }
@keyframes line-in { from { transform: scale(0.2); } }

/* Claimed boxes */
.db-box {
  position: absolute;
  left: calc(var(--c) * var(--cell));
  top: calc(var(--r) * var(--cell));
  width: var(--cell);
  height: var(--cell);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(0.8rem, 3.5vw, 1.2rem);
  color: var(--ink-900);
}
.db-box.is-you, .db-box.is-cpu { animation: box-in 0.35s var(--ease-spring); }
.db-box.is-you { background: color-mix(in srgb, var(--tomato) 40%, transparent); }
.db-box.is-cpu { background: color-mix(in srgb, var(--mustard) 55%, transparent); }
[data-theme="dark"] .db-box { color: var(--cream-50); }
@keyframes box-in { from { transform: scale(0.3); opacity: 0; } }

.db-legend { display: flex; gap: var(--space-4); font-size: var(--step--1); font-weight: 700; color: var(--text-soft); }
.db-legend span { display: inline-flex; align-items: center; gap: 0.4em; }
.db-legend i { width: 18px; height: 6px; border-radius: 3px; }