/* слева сетка-холст, справа колонка шаблонов; на телефоне всё в одну колонку */
:root {
  --bg: #f3f4f8;
  --card: #ffffff;
  --fg: #1d2030;
  --muted: #868ba0;
  --border: #e4e7ee;
  --tile: #e8eaf0;
  --tile-head: #d2d7e3;
  --btn: #eceef3;
  --btn-hover: #dfe2ea;
  --primary: #1d2030;
  --primary-fg: #ffffff;
  --ok: #2a8a4a;
  --danger: #d33a3a;
  --danger-bg: #fdeaea;
  --shadow: 0 2px 12px rgba(20, 24, 40, .06);
  --font: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12141b; --card: #1b1e28; --fg: #e9ebf2; --muted: #8a90a5; --border: #2a2e3a;
    --tile: #262a36; --tile-head: #363b4b; --btn: #272b37; --btn-hover: #323747;
    --primary: #e9ebf2; --primary-fg: #12141b; --ok: #5cc77f; --danger: #ff6b6b; --danger-bg: #3a1f22;
    --shadow: none; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #12141b; --card: #1b1e28; --fg: #e9ebf2; --muted: #8a90a5; --border: #2a2e3a;
  --tile: #262a36; --tile-head: #363b4b; --btn: #272b37; --btn-hover: #323747;
  --primary: #e9ebf2; --primary-fg: #12141b; --ok: #5cc77f; --danger: #ff6b6b; --danger-bg: #3a1f22;
  --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
}

.app {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  align-items: start;
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
  padding-block: 32px;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

.board, .side {
  min-width: 0;
  background: var(--card);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
h1 { font-size: 34px; font-weight: 600; margin: 0 0 4px; text-wrap: balance; }
.sub { margin: 0 0 20px; color: var(--muted); }

/* --- сетка --- */
.grid {
  display: grid;
  grid-template-columns: repeat(32, 1fr);
  gap: 3px;
  touch-action: none;
  user-select: none;
}
.cell {
  aspect-ratio: 1;
  max-width: 100%;
  border-radius: 3px;
  background: var(--tile);
  cursor: pointer;
  transition: transform .1s, filter .1s;
}
.cell.on { background: var(--c); }
.cell.head:not(.on) { background: var(--tile-head); }
.cell.on.head { transform: scale(1.3); filter: brightness(1.15); }

.axis {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
}

/* --- кнопки --- */
.controls { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 20px; }
button, select, input { font: inherit; color: inherit; }
button {
  border: 0;
  border-radius: 10px;
  padding: 9px 16px;
  background: var(--btn);
  cursor: pointer;
}
button:hover { background: var(--btn-hover); }
button:focus-visible, select:focus-visible, input:focus-visible { outline: 2px solid var(--fg); outline-offset: 2px; }
button.primary { background: var(--primary); color: var(--primary-fg); min-width: 110px; }
button.primary:hover { background: var(--primary); filter: brightness(1.2); }
button.lang { padding: 6px 12px; font-size: 13px; }
select, .side input {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  background: var(--card);
}
label { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); }
.tempo input { width: 120px; accent-color: var(--fg); }

/* --- шаблоны --- */
.side h2 { margin: 0 0 12px; font-size: 18px; }
.save { display: flex; gap: 8px; }
.save input { flex: 1; min-width: 0; }
.wide { width: 100%; margin-top: 8px; }
.note { margin: 10px 0 0; font-size: 13px; color: var(--muted); }
.msg { min-height: 18px; margin: 8px 0; font-size: 13px; color: var(--ok); }
.list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.list .title { margin: 10px 0 0; font-size: 12px; color: var(--muted); letter-spacing: .04em; }
.item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
}
.item:hover { background: var(--bg); }
.item canvas {
  width: 64px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 4px;
  background: var(--tile);
  image-rendering: pixelated;
}
.item span { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; }
.item .del { padding: 4px 9px; background: transparent; color: var(--muted); }
.item .del:hover { background: var(--danger-bg); color: var(--danger); }

@media (max-width: 820px) {
  .app { grid-template-columns: minmax(0, 1fr); padding-block: 16px; gap: 16px; }
  .board, .side { padding: 14px; }
  .grid { gap: 1px; }
  h1 { font-size: 26px; }
}
@media (prefers-reduced-motion: reduce) {
  .cell { transition: none; }
  .cell.on.head { transform: none; }
}