* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
}

/* ---- Menu Bar ---- */
.menu-bar {
  display: flex;
  align-items: center;
  height: 20px;
  background: var(--sz-color-menu);
  border-bottom: 1px solid var(--sz-color-button-shadow);
  padding: 0 2px;
  position: relative;
}

.menu-item {
  padding: 2px 8px;
  cursor: default;
  color: var(--sz-color-menu-text);
  position: relative;
}

.menu-item:hover, .menu-item.open {
  background: var(--sz-color-highlight);
  color: var(--sz-color-highlight-text);
}

.menu-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--sz-color-menu);
  border: 2px outset var(--sz-color-button-face);
  box-shadow: 2px 2px 4px rgba(0,0,0,0.3);
  z-index: 1000;
  min-width: 180px;
  padding: 2px 0;
}

.menu-dropdown.visible { display: block; }

.menu-entry {
  padding: 3px 24px 3px 24px;
  cursor: default;
  white-space: nowrap;
  color: var(--sz-color-menu-text);
  position: relative;
}

.menu-entry:hover {
  background: var(--sz-color-highlight);
  color: var(--sz-color-highlight-text);
}

.menu-entry .shortcut {
  float: right;
  margin-left: 24px;
  opacity: 0.7;
}

.menu-entry.checked::before {
  content: '\2713';
  position: absolute;
  left: 8px;
}

.menu-separator {
  height: 1px;
  background: var(--sz-color-button-shadow);
  margin: 3px 4px;
}

/* ---- Game Frame ---- */
.game-frame {
  border: 3px solid;
  border-color: var(--sz-color-button-highlight) var(--sz-color-button-shadow) var(--sz-color-button-shadow) var(--sz-color-button-highlight);
  margin: 4px;
  padding: 5px;
  background: var(--sz-color-button-face);
}

/* ---- Status Panel (counters + smiley) ---- */
.status-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 2px solid;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
  padding: 4px 5px;
  margin-bottom: 5px;
  background: var(--sz-color-button-face);
}

/* LED counter */
.led-counter {
  background: #000;
  color: #f00;
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 22px;
  font-weight: bold;
  letter-spacing: 1px;
  padding: 1px 3px;
  border: 1px solid;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
  min-width: 42px;
  text-align: right;
  line-height: 1;
}

/* Smiley button */
.smiley-btn {
  width: 26px;
  height: 26px;
  border: 2px outset var(--sz-color-button-face);
  background: var(--sz-color-button-face);
  cursor: pointer;
  font-size: 16px;
  line-height: 22px;
  text-align: center;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.smiley-btn:active {
  border-style: inset;
}

/* ---- Minefield ---- */
.field-border {
  border: 3px solid;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
}

.minefield {
  display: grid;
  line-height: 0;
}

.cell {
  width: 16px;
  height: 16px;
  border: 2px outset var(--sz-color-button-face);
  background: var(--sz-color-button-face);
  font-size: 11px;
  font-weight: bold;
  text-align: center;
  line-height: 13px;
  cursor: default;
  overflow: hidden;
  padding: 0;
}

.cell.hidden {
  border: 2px outset var(--sz-color-button-face);
}

.cell.hidden:active:not(.flagged):not(.question) {
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
}

.cell.revealed {
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
  line-height: 15px;
}

.cell.flagged, .cell.question {
  font-size: 11px;
  line-height: 13px;
}

.cell.mine-hit {
  background: #f00;
  border: 1px solid var(--sz-color-button-shadow);
  line-height: 15px;
}

.cell.mine-shown {
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
  line-height: 15px;
}

.cell.mine-wrong {
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
  line-height: 15px;
  color: #f00;
}

.n1 { color: #0000ff; }
.n2 { color: #008000; }
.n3 { color: #ff0000; }
.n4 { color: #000080; }
.n5 { color: #800000; }
.n6 { color: #008080; }
.n7 { color: #000000; }
.n8 { color: #808080; }

/* ---- Dialog ---- */
.dialog-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.25);
  z-index: 2000;
  justify-content: center;
  align-items: center;
}

.dialog-overlay.visible {
  display: flex;
}

.dialog {
  background: var(--sz-color-button-face);
  border: 2px outset var(--sz-color-button-face);
  box-shadow: 2px 2px 8px rgba(0, 0, 0, 0.4);
  min-width: 280px;
  max-width: 400px;
}

.dialog-title {
  background: linear-gradient(180deg, #0a246a 0%, #3a6ea5 100%);
  background-color: var(--sz-color-active-title);
  color: var(--sz-color-title-text);
  font-size: 11px;
  font-weight: bold;
  padding: 3px 6px;
  user-select: none;
}

.dialog-body {
  padding: 12px 16px;
  font-size: 11px;
  line-height: 1.6;
}

.dialog-buttons {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px 12px;
}

.dialog-buttons button {
  min-width: 75px;
  height: 23px;
  border: 2px outset var(--sz-color-button-face);
  background: var(--sz-color-button-face);
  font-family: inherit;
  font-size: 11px;
  cursor: pointer;
}

.dialog-buttons button:active {
  border-style: inset;
}

/* ---- Best Times Table ---- */
.best-times-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 4px;
  font-size: 11px;
}

.best-times-table th {
  text-align: left;
  padding: 2px 8px 2px 0;
  font-weight: normal;
  border-bottom: 1px solid var(--sz-color-button-shadow);
}

.best-times-table td {
  padding: 3px 8px 3px 0;
  white-space: nowrap;
}

.best-times-table td:nth-child(2) {
  text-align: right;
  padding-right: 16px;
}

/* ---- Custom Field Dialog ---- */
.custom-field-row {
  display: flex;
  align-items: center;
  margin-bottom: 6px;
}

.custom-field-row label {
  width: 60px;
  font-size: 11px;
}

.custom-field-row input {
  width: 60px;
  height: 20px;
  font-family: inherit;
  font-size: 11px;
  padding: 1px 3px;
}

.custom-field-row .field-range {
  font-size: 10px;
  color: var(--sz-color-button-shadow);
  margin-left: 6px;
}

.custom-error {
  color: #c00;
  font-size: 10px;
  margin-top: 4px;
  min-height: 14px;
}