/*
 * The board's own chrome, borrowed from the desktop rebuild so the two look like one game:
 * the same near-black panel, the same muted status line, the same pixel-era buttons.
 *
 * Shared by index.html and embed.html. The frame on /software/sokoban is the second of
 * those, so this file has to stand on its own — the site's stylesheet does not reach inside
 * an iframe.
 */

:root {
  --chrome: #1b1e26;
  --backdrop: #14161c;
  --frame: #2a2e3a;
  --text: #c8ceda;
  --muted: #8a92a6;
  --accent: #d9b44a;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  background: var(--backdrop);
  color: var(--text);
  font: 14px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ------------------------------------------------------------------ toolbar */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 10px 12px;
  background: var(--chrome);
  border-bottom: 1px solid var(--frame);
}

.toolbar label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
}

.toolbar select {
  min-width: 9.5rem;
  max-width: 14rem;
  padding: 5px 8px;
  border: 1px solid var(--frame);
  border-radius: 6px;
  background: #0f1116;
  color: var(--text);
  font: inherit;
  font-size: 13px;
}

.toolbar .spacer { flex: 1 1 auto; }

button {
  padding: 6px 12px;
  border: 1px solid var(--frame);
  border-radius: 6px;
  background: #232733;
  color: var(--text);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
}

button:hover:not(:disabled) { border-color: var(--accent); color: #fff; }
button:disabled { opacity: 0.4; cursor: default; }
button:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* -------------------------------------------------------------------- board */

.stage {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  background: var(--backdrop);
}

#board {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

#loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  padding: 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

#banner {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 14px;
  padding: 1rem;
  text-align: center;
  background: rgb(20 22 28 / 0.88);
}

#banner[hidden] { display: none; }
#banner p { margin: 0; font-size: 15px; }
#banner div { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }

/* --------------------------------------------------------------- status line */

.status {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 16px;
  padding: 7px 12px 9px;
  background: var(--chrome);
  border-top: 1px solid var(--frame);
  font-size: 11.5px;
}

#credit { color: var(--text); }
#counters { color: var(--muted); font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------------- d-pad */

/*
 * Only for touch. A pointer gets the keyboard, and the pad would be four buttons of clutter;
 * a phone gets it because swiping a square at a time is accurate but tiring.
 */
.pad { display: none; }

@media (hover: none) and (pointer: coarse) {
  .pad {
    display: grid;
    grid-template-columns: repeat(3, 3rem);
    grid-template-rows: repeat(2, 3rem);
    gap: 6px;
    justify-content: center;
    padding: 10px 12px 14px;
    background: var(--chrome);
    border-top: 1px solid var(--frame);
  }

  .pad button {
    grid-area: var(--area);
    padding: 0;
    font-size: 17px;
    text-transform: none;
  }
}

/* ------------------------------------------------------------ the page frame */

/* index.html only: embed.html is the bare board, with the host page doing the talking. */
.page-head, .page-foot {
  padding: 14px 16px;
  background: var(--chrome);
  font-size: 12.5px;
  color: var(--muted);
}

.page-head { border-bottom: 1px solid var(--frame); }
.page-foot { border-top: 1px solid var(--frame); }

.page-head h1 {
  margin: 0 0 2px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-head p, .page-foot p { margin: 0; }
a { color: var(--accent); }

kbd {
  padding: 1px 5px;
  border: 1px solid var(--frame);
  border-radius: 4px;
  background: #0f1116;
  font: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  color: var(--text);
}