/* Structure only. Every color, font, radius and gap comes from --mg-* tokens. */
.mg-widget { font-family: var(--mg-font); color: var(--mg-ink); }
.mg-layout { display: flex; flex-wrap: wrap; gap: calc(var(--mg-gap) * 2); align-items: flex-start; }
.mg-col-side { display: grid; gap: var(--mg-gap); min-width: 220px; flex: 1 1 220px; max-width: 24rem; }

.mg-board { display: grid; grid-template-columns: repeat(var(--mg-cols), 1fr); gap: 2px;
  padding: 8px; background: var(--mg-board-bg); border-radius: var(--mg-radius);
  width: var(--mg-pad-size); max-width: 100%; box-sizing: border-box; } /* every game's play area has the same width */
.mg-cell { aspect-ratio: 1; background: var(--mg-cell-bg);
  border-radius: var(--mg-radius-cell); transition: background var(--mg-motion); cursor: pointer; }
.mg-cell:hover { background: var(--mg-hover); }
.mg-cell:focus-visible { outline: 2px solid var(--mg-focus); outline-offset: 1px; }
.mg-body { background: var(--mg-body); }
.mg-head { background: var(--mg-head); }
.mg-apple { background: var(--mg-apple); border-radius: 50%; }
.mg-body:hover, .mg-head:hover { cursor: not-allowed; }
.mg-over { opacity: .6; }

.mg-title { margin: 0 0 6px; font-size: 1rem; }
.mg-probs { font: 400 14px var(--mg-font-mono); }
.mg-prob { display: grid; grid-template-columns: 8em 1fr 3em; align-items: center; gap: 10px; margin: 7px 0; }
.mg-prob-value { text-align: right; font-variant-numeric: tabular-nums; }
.mg-bar { height: 10px; background: var(--mg-bar-track); border-radius: var(--mg-radius-cell); position: relative; }
.mg-bar::after { content: ""; position: absolute; inset: 0; width: var(--v, 0%); background: var(--mg-bar-fill);
  border-radius: inherit; transition: width var(--mg-motion); }
.mg-chosen .mg-bar::after { background: var(--mg-bar-best); }

.mg-model-label, .mg-speed-label { display: grid; gap: 4px; font-size: .85rem; color: var(--mg-muted); }
.mg-model-select { font: inherit; padding: 6px; background: var(--mg-surface); color: var(--mg-ink);
  border: 1px solid var(--mg-line); border-radius: var(--mg-radius); }
.mg-model-desc { margin: 0; font-size: .85rem; color: var(--mg-muted); }
.mg-btn { font: inherit; font-weight: 600; font-size: .9rem; padding: 8px 16px; margin: 0 6px 6px 0; background: transparent;
  color: var(--mg-ink); border: 1px solid var(--mg-btn-border); border-radius: var(--mg-radius); cursor: pointer;
  transition: background var(--mg-motion); }
.mg-btn:hover { background: var(--mg-hover); }
.mg-btn:focus-visible, .mg-speed:focus-visible, .mg-model-select:focus-visible { outline: 2px solid var(--mg-focus); outline-offset: 1px; }
.mg-speed { accent-color: var(--mg-body); }
.mg-score { margin: 0; font-weight: 700; }
.mg-note { margin: 0; min-height: 1.4em; font-size: .9rem; color: var(--mg-muted); }
.mg-error { color: var(--mg-error); }

.mg-image { display: block; width: var(--mg-pad-size); height: auto; aspect-ratio: 1; image-rendering: pixelated;
  background: var(--mg-pad-bg); border: 1px solid var(--mg-line); border-radius: var(--mg-radius); }
.mg-image.mg-smooth { image-rendering: auto; touch-action: none; user-select: none; cursor: crosshair; }
.mg-image.mg-smooth.mg-crisp { image-rendering: pixelated; cursor: default; }
.mg-image:focus-visible { outline: 2px solid var(--mg-focus); outline-offset: 2px; }
.mg-options { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.mg-toggle { display: inline-flex; align-items: center; gap: 4px; margin-right: 8px; font-size: .9rem; color: var(--mg-ink); }
.mg-toggle input:focus-visible { outline: 2px solid var(--mg-focus); outline-offset: 2px; }
.mg-guess { margin: 0; font-size: 1.1rem; font-weight: 700; }
.mg-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 16px; }
.mg-headline { margin: 0 0 12px; font-size: 1.3rem; line-height: 1.2; }
.mg-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.mg-anchor { position: relative; }
.mg-inline { display: inline-flex; align-items: center; gap: 8px; }
.mg-help { flex: none; width: 20px; height: 20px; margin-left: 8px; padding: 0; vertical-align: middle; border-radius: 50%;
  border: 1px solid var(--mg-btn-border); background: transparent; color: var(--mg-ink); font: 700 12px/1 var(--mg-font);
  cursor: pointer; transition: background var(--mg-motion); }
.mg-help:hover, .mg-help[aria-expanded="true"] { background: var(--mg-hover); }
.mg-help:focus-visible { outline: 2px solid var(--mg-focus); outline-offset: 2px; }
.mg-help-corner { position: absolute; top: -10px; right: -10px; margin: 0; }
.mg-help-pop { position: fixed; inset: auto; margin: 0; width: min(19rem, calc(100vw - 16px)); max-height: min(60vh, 22rem);
  overflow: auto; padding: 2px 12px 8px; color: var(--mg-ink); font-family: var(--mg-font);
  background: color-mix(in srgb, var(--mg-surface) 75%, transparent); backdrop-filter: blur(8px);
  border: 1px solid var(--mg-line); border-radius: var(--mg-radius); box-shadow: 0 6px 24px rgb(0 0 0 / .18); }
.mg-help-h { margin: 8px 0 2px; font-size: .8rem; }
.mg-help-p, .mg-help-list { margin: 3px 0; font-size: .76rem; line-height: 1.4; }
.mg-help-list { padding-left: 1.2em; }
.mg-help-pop a { color: var(--mg-body); }
.mg-help-pop a:focus-visible { outline: 2px solid var(--mg-focus); outline-offset: 1px; }

@media (prefers-reduced-motion: reduce) {
  .mg-cell, .mg-bar::after, .mg-btn { transition: none; }
}

/* Connect 4: round discs on a framed board */
.mg-board[data-shape="round"] { gap: 4px; padding: 10px; background: var(--mg-p1-frame); }
.mg-board[data-shape="round"] .mg-cell { border-radius: 50%; }
/* hover: a see-through disc of the visitor's colour laid over whatever is already there, so discs stay visible */
.mg-board[data-shape="round"] .mg-cell:hover { background-color: var(--mg-cell-bg);
  background-image: linear-gradient(color-mix(in srgb, var(--mg-p1) 45%, transparent), color-mix(in srgb, var(--mg-p1) 45%, transparent)); }
.mg-board[data-shape="round"] .mg-you:hover { background-color: var(--mg-p1); }
.mg-board[data-shape="round"] .mg-model:hover { background-color: var(--mg-p2); }
.mg-you { background: var(--mg-p1); }
.mg-model { background: var(--mg-p2); }
.mg-board[data-shape="round"] .mg-you:hover, .mg-board[data-shape="round"] .mg-model:hover { cursor: pointer; }
.mg-win { box-shadow: 0 0 0 3px var(--mg-win-ring); }

.mg-net { display: block; width: 100%; max-width: 640px; background: var(--mg-surface); border: 1px solid var(--mg-line); border-radius: var(--mg-radius); }
.mg-net-readout { margin: 6px 0 0; min-height: 2.6em; font: 400 13px var(--mg-font-mono); color: var(--mg-muted); }