:root {
  --chrome: #c0c0c0;
  --chrome-dark: #808080;
  --chrome-darker: #404040;
  --chrome-light: #ffffff;
  --title-blue: #000080;
  --desktop: #008080;
  --cell-size: 16px;
  --board-shadow-dark: #7b7b7b;
  --board-shadow-light: #ffffff;
  --revealed-edge: #8b8b8b;
}

* {
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
  padding: 24px;
  background: var(--desktop);
  color: #000000;
  font-family: "MS Sans Serif", Tahoma, Geneva, sans-serif;
  font-size: 11px;
  line-height: 1;
  display: grid;
  place-items: center;
  user-select: none;
}

button {
  font: inherit;
}

a {
  color: inherit;
}

.window {
  background: var(--chrome);
  border-top: 2px solid var(--chrome-light);
  border-left: 2px solid var(--chrome-light);
  border-right: 2px solid #000000;
  border-bottom: 2px solid #000000;
  box-shadow: inset -1px -1px 0 var(--chrome-dark), inset 1px 1px 0 #dfdfdf;
}

.window.is-minimized .menu-bar,
.window.is-minimized .game-shell {
  display: none;
}

.window.is-maximized {
  position: fixed;
  inset: 8px;
  width: auto;
  max-width: none;
  display: flex;
  flex-direction: column;
  z-index: 20;
}

.window.is-maximized .game-shell {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.window.is-maximized .board-frame {
  flex: 1;
  min-height: 0;
  overflow: auto;
}

.title-bar {
  height: 18px;
  background: var(--title-blue);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 0 2px 0 3px;
  font-weight: 700;
}

.title-group {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
}

.app-icon {
  width: 14px;
  height: 14px;
  display: grid;
  place-items: center;
}

.title-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.window-controls {
  display: flex;
  gap: 2px;
}

.window-control {
  width: 16px;
  height: 14px;
  padding: 0;
  background: var(--chrome);
  color: #000000;
  display: grid;
  place-items: center;
  border-top: 1px solid var(--chrome-light);
  border-left: 1px solid var(--chrome-light);
  border-right: 1px solid #000000;
  border-bottom: 1px solid #000000;
  box-shadow: inset -1px -1px 0 var(--chrome-dark), inset 1px 1px 0 #dfdfdf;
  font-size: 9px;
  line-height: 1;
  cursor: pointer;
}

.window-control:focus-visible {
  outline: 1px dotted #000000;
  outline-offset: -3px;
}

.menu-bar {
  display: flex;
  gap: 8px;
  padding: 5px 6px 4px;
  position: relative;
  z-index: 5;
}

.menu-group {
  position: relative;
}

.menu-item {
  min-width: 40px;
  padding: 1px 6px 2px;
  border: 0;
  background: transparent;
  color: #000000;
  cursor: pointer;
  text-align: left;
}

.menu-item.is-open {
  background: var(--title-blue);
  color: #ffffff;
}

.menu-popup {
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  min-width: 124px;
  padding: 2px;
  background: var(--chrome);
  border-top: 2px solid var(--chrome-light);
  border-left: 2px solid var(--chrome-light);
  border-right: 2px solid #000000;
  border-bottom: 2px solid #000000;
  box-shadow: inset -1px -1px 0 var(--chrome-dark), inset 1px 1px 0 #dfdfdf;
}

.menu-popup[hidden] {
  display: none;
}

.menu-popup-item {
  width: 100%;
  padding: 4px 20px 4px 18px;
  border: 0;
  background: transparent;
  color: #000000;
  text-align: left;
  cursor: pointer;
}

.menu-popup-item:hover,
.menu-popup-item:focus-visible {
  background: var(--title-blue);
  color: #ffffff;
  outline: none;
}

.menu-item:focus-visible {
  outline: 1px dotted #000000;
  outline-offset: 2px;
}

.game-shell {
  padding: 8px 8px 10px;
}

.hud,
.board-frame {
  background: var(--chrome);
  border-top: 2px solid var(--chrome-dark);
  border-left: 2px solid var(--chrome-dark);
  border-right: 2px solid var(--chrome-light);
  border-bottom: 2px solid var(--chrome-light);
  box-shadow: inset -1px -1px 0 #000000, inset 1px 1px 0 #dfdfdf;
}

.hud {
  min-height: 55px;
  padding: 7px 10px 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.counter {
  min-width: 41px;
  height: 25px;
  padding: 1px;
  background: #000000;
  border-top: 2px solid var(--chrome-dark);
  border-left: 2px solid var(--chrome-dark);
  border-right: 2px solid var(--chrome-light);
  border-bottom: 2px solid var(--chrome-light);
  box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #000000;
  display: flex;
}

.digit {
  position: relative;
  width: 13px;
  height: 21px;
  background: #000000;
}

.segment {
  position: absolute;
  background: #2a0000;
}

.segment.is-on {
  background: #ff2d2d;
  box-shadow: 0 0 1px #ff6666;
}

.segment.a,
.segment.d,
.segment.g {
  left: 3px;
  width: 7px;
  height: 3px;
}

.segment.a {
  top: 1px;
}

.segment.g {
  top: 9px;
}

.segment.d {
  bottom: 1px;
}

.segment.b,
.segment.c,
.segment.e,
.segment.f {
  width: 3px;
  height: 6px;
}

.segment.b,
.segment.c {
  right: 1px;
}

.segment.e,
.segment.f {
  left: 1px;
}

.segment.b,
.segment.f {
  top: 3px;
}

.segment.c,
.segment.e {
  bottom: 3px;
}

.face-button {
  width: 26px;
  height: 26px;
  padding: 0;
  background: var(--chrome);
  border: 0;
  cursor: pointer;
  display: grid;
  place-items: center;
  border-top: 2px solid var(--chrome-light);
  border-left: 2px solid var(--chrome-light);
  border-right: 2px solid #000000;
  border-bottom: 2px solid #000000;
  box-shadow: inset -1px -1px 0 var(--chrome-dark), inset 1px 1px 0 #dfdfdf;
}

.face-button:active,
.face-button.is-pressed {
  border-top: 2px solid var(--chrome-dark);
  border-left: 2px solid var(--chrome-dark);
  border-right: 2px solid var(--chrome-light);
  border-bottom: 2px solid var(--chrome-light);
  box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #000000;
}

.face-button svg {
  display: block;
}

.board-frame {
  margin-top: 8px;
  padding: 6px;
}

.board {
  display: grid;
  gap: 0;
  background: var(--chrome);
  align-items: start;
  justify-content: start;
}

.cell {
  width: var(--cell-size);
  height: var(--cell-size);
  padding: 0;
  margin: 0;
  border: 0;
  background: var(--chrome);
  display: grid;
  place-items: center;
  position: relative;
  color: #000000;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
}

.cell.is-void {
  pointer-events: none;
  background: transparent;
}

.cell.is-hidden {
  border-top: 2px solid var(--board-shadow-light);
  border-left: 2px solid var(--board-shadow-light);
  border-right: 2px solid var(--board-shadow-dark);
  border-bottom: 2px solid var(--board-shadow-dark);
}

.cell.is-hidden:active {
  border-top: 1px solid var(--revealed-edge);
  border-left: 1px solid var(--revealed-edge);
  border-right: 1px solid var(--chrome);
  border-bottom: 1px solid var(--chrome);
}

.cell.is-revealed {
  border: 1px solid var(--revealed-edge);
  background: var(--chrome);
}

.cell.is-exploded {
  background: #ff0000;
}

.cell svg {
  display: block;
  width: 16px;
  height: 16px;
  pointer-events: none;
}

.cell-value {
  transform: translateY(-1px);
}

.question-mark {
  transform: translateY(-1px);
  color: #000080;
}

.cell[data-count="1"] .cell-value {
  color: #0000ff;
}

.cell[data-count="2"] .cell-value {
  color: #008000;
}

.cell[data-count="3"] .cell-value {
  color: #ff0000;
}

.cell[data-count="4"] .cell-value {
  color: #000080;
}

.cell[data-count="5"] .cell-value {
  color: #800000;
}

.cell[data-count="6"] .cell-value {
  color: #008080;
}

.cell[data-count="7"] .cell-value {
  color: #000000;
}

.cell[data-count="8"] .cell-value {
  color: #808080;
}

.help-dialog {
  border: 0;
  padding: 0;
  background: transparent;
}

.help-dialog::backdrop {
  background: rgba(0, 0, 0, 0.35);
}

.help-panel {
  min-width: 260px;
  padding: 12px;
  background: var(--chrome);
  border-top: 2px solid var(--chrome-light);
  border-left: 2px solid var(--chrome-light);
  border-right: 2px solid #000000;
  border-bottom: 2px solid #000000;
  box-shadow: inset -1px -1px 0 var(--chrome-dark), inset 1px 1px 0 #dfdfdf;
}

.help-panel h1 {
  margin: 0 0 10px;
  font-size: 12px;
}

.help-panel p {
  margin: 0 0 8px;
  line-height: 1.3;
}

.help-credit {
  margin-top: 10px;
}

.help-link {
  color: var(--title-blue);
}

.help-link:hover,
.help-link:focus-visible {
  text-decoration: underline;
}

.dialog-button {
  margin-top: 6px;
  min-width: 72px;
  height: 24px;
  padding: 0 10px;
  background: var(--chrome);
  border-top: 2px solid var(--chrome-light);
  border-left: 2px solid var(--chrome-light);
  border-right: 2px solid #000000;
  border-bottom: 2px solid #000000;
  box-shadow: inset -1px -1px 0 var(--chrome-dark), inset 1px 1px 0 #dfdfdf;
}

.desktop-shortcut {
  position: fixed;
  top: 18px;
  left: 18px;
  width: 74px;
  padding: 6px 4px;
  border: 0;
  background: transparent;
  color: #ffffff;
  display: grid;
  justify-items: center;
  gap: 6px;
  cursor: pointer;
}

.desktop-shortcut[hidden] {
  display: none;
}

.desktop-shortcut:focus-visible,
.desktop-shortcut:hover {
  background: rgba(255, 255, 255, 0.16);
  outline: 1px dotted #ffffff;
  outline-offset: 2px;
}

.desktop-shortcut-icon {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: var(--chrome);
  border-top: 2px solid var(--chrome-light);
  border-left: 2px solid var(--chrome-light);
  border-right: 2px solid #000000;
  border-bottom: 2px solid #000000;
  box-shadow: inset -1px -1px 0 var(--chrome-dark), inset 1px 1px 0 #dfdfdf;
}

.desktop-shortcut-label {
  line-height: 1.2;
  text-shadow: 1px 1px 0 #000000;
}

@media (max-width: 760px) {
  html,
  body {
    min-height: 100vh;
  }

  body {
    display: block;
    overflow: auto;
    padding: 10px;
    width: max-content;
    min-width: calc(100vw - 20px);
  }

  .window {
    width: max-content;
    min-width: max-content;
    max-width: none;
    overflow: visible;
  }

  .window.is-maximized {
    inset: 4px;
  }
}