:root {
  color-scheme: dark;
  --desktop: #173b3b; --panel: #35383d; --text: #f0f0ed;
  --light: #697078; --shadow: #151719; --well: #24272b;
  --title: #000080; --accent: #b7caff; --open: #2a2e33;
  --n1: #8baeff; --n2: #7ee091; --n3: #ff8c8c; --n4: #c5a5ff;
  --n5: #ffb47e; --n6: #6de3df; --n7: #f2efb7; --n8: #d4d4d4;
}
:root[data-theme="light"] {
  color-scheme: light;
  --desktop: #008080; --panel: #c0c0c0; --text: #171717;
  --light: #fff; --shadow: #808080; --well: #d0d0d0;
  --accent: #000080; --open: #c0c0c0;
  --n1: #0000bf; --n2: #006b00; --n3: #c00000; --n4: #000080;
  --n5: #800000; --n6: #006b6b; --n7: #111; --n8: #555;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; padding: 36px 16px; background: var(--desktop); color: var(--text); font: 14px Tahoma, Verdana, sans-serif; }
.window { width: max-content; min-width: 340px; max-width: 100%; margin: 0 auto; padding: 4px; background: var(--panel); border: 2px solid; border-color: var(--light) var(--shadow) var(--shadow) var(--light); box-shadow: 2px 2px 0 #000, 12px 16px 0 #0002; }
.titlebar { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 7px 9px; background: linear-gradient(90deg, var(--title), #176293); color: white; }
h1 { margin: 0; font-size: 15px; } h1 span { margin-right: 6px; color: #fff59d; }
.badge { font: bold 10px monospace; letter-spacing: 2px; }
button, select, input { font: inherit; color: var(--text); border-radius: 0; }
button, select { background: var(--panel); border: 2px solid; border-color: var(--light) var(--shadow) var(--shadow) var(--light); min-height: 34px; }
button { padding: 5px 10px; cursor: pointer; }
button:active { border-color: var(--shadow) var(--light) var(--light) var(--shadow); }
button:hover { filter: brightness(1.1); }
:focus-visible { outline: 2px dashed var(--accent); outline-offset: 2px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 8px; border-bottom: 1px solid var(--shadow); }
.toolbar button { font-size: 12px; flex: 1; white-space: nowrap; }
.settings { padding: 12px 8px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
select { flex: 1; padding: 4px; min-width: 0; }
[hidden] { display: none !important; }
#custom-form { width: 100%; display: flex; flex-wrap: wrap; align-items: end; gap: 10px; }
#custom-form label { display: grid; gap: 5px; flex: 1; }
input { background: var(--well); border: 2px solid; border-color: var(--shadow) var(--light) var(--light) var(--shadow); padding: 6px; width: 74px; }
small { font-size: 11px; line-height: 1.6; opacity: .8; }
#custom-form small { width: 100%; } #custom-error { margin: 0; color: var(--n3); width: 100%; font-size: 12px; }
.game { margin: 0 8px; padding: 10px; border: 2px solid; border-color: var(--shadow) var(--light) var(--light) var(--shadow); }
.dashboard { display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 8px; margin-bottom: 12px; border: 2px solid; border-color: var(--shadow) var(--light) var(--light) var(--shadow); }
.meter-label { display: block; font-size: 9px; letter-spacing: 1px; margin-bottom: 4px; }
.counter { display: block; min-width: 72px; padding: 2px 6px; text-align: right; background: #120606; color: #ff4545; font: bold 28px/1.1 'Courier New', monospace; border: 1px solid var(--shadow); font-variant-numeric: tabular-nums; }
.face { width: 44px; height: 44px; padding: 0; color: #ffd953; font: bold 34px/1 Arial, sans-serif; text-shadow: 1px 1px #000; }
.board-scroll { max-width: 100%; overflow: auto; padding: 2px; overscroll-behavior-x: contain; }
#board { display: grid; grid-template-columns: repeat(var(--cols), 30px); width: max-content; margin: 0 auto; border: 3px solid; border-color: var(--shadow) var(--light) var(--light) var(--shadow); user-select: none; -webkit-user-select: none; }
.cell { width: 30px; height: 30px; min-height: 0; padding: 0; display: grid; place-items: center; font: bold 19px/1 'Courier New', monospace; touch-action: auto; -webkit-touch-callout: none; }
.cell.open { background: var(--open); border: 1px solid var(--shadow); }
.cell.flag { color: var(--n3); }
.cell.mine { color: var(--text); }
.cell.exploded { background: #b52a2a; color: #fff; }
.cell.wrong { color: var(--n3); background: var(--well); }
.cell[data-number="1"] { color: var(--n1); } .cell[data-number="2"] { color: var(--n2); }
.cell[data-number="3"] { color: var(--n3); } .cell[data-number="4"] { color: var(--n4); }
.cell[data-number="5"] { color: var(--n5); } .cell[data-number="6"] { color: var(--n6); }
.cell[data-number="7"] { color: var(--n7); } .cell[data-number="8"] { color: var(--n8); }
.inset { border: 1px solid; border-color: var(--shadow) var(--light) var(--light) var(--shadow); }
.status { padding: 8px; margin: 12px 0 0; max-width: 100%; font-size: 12px; line-height: 1.5; }
.statistics { padding: 14px 8px; }
.section-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; gap: 12px; }
h2 { font-size: 13px; margin: 0; } .section-heading button { min-height: 28px; font-size: 11px; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); background: var(--well); padding: 10px; gap: 16px; }
.stats-grid span { font-size: 11px; display: block; margin-bottom: 5px; }
.stats-grid strong { font: bold 21px 'Courier New', monospace; }
.records { margin: 12px 0 8px; font-size: 12px; }
.records > span { font-weight: bold; } dl { margin: 7px 0 0; display: flex; flex-wrap: wrap; gap: 8px 20px; }
dl div { display: flex; gap: 8px; } dd { margin: 0; font-weight: bold; color: var(--accent); }
footer { margin: 0 8px 8px; padding: 8px; font-size: 11px; line-height: 1.7; }
.desktop-caption { text-align: center; color: #fff; opacity: .65; font-size: 11px; margin-top: 20px; }
@media (max-width: 480px) {
  body { padding: 12px 6px; } .window { min-width: 0; width: 100%; }
  .game { margin: 0 4px; padding: 6px; } .settings { padding: 10px 4px; }
  .cell { width: 32px; height: 32px; } #board { grid-template-columns: repeat(var(--cols), 32px); }
  .statistics { padding: 12px 4px; } .toolbar { padding: 8px 4px; gap: 4px; }
  .toolbar button { padding: 5px; } .dashboard { gap: 8px; }
}