/* 고전 윈도우 스타일 레트로 CSS */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

body {
  background-color: #008080; /* 클래식 윈도우 청록색 바탕 */
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 16px;
  overflow-x: auto;
}

/* 윈도우 프레임 */
.window-container {
  background: #c0c0c0;
  border-top: 3px solid #ffffff;
  border-left: 3px solid #ffffff;
  border-right: 3px solid #7b7b7b;
  border-bottom: 3px solid #7b7b7b;
  box-shadow: 2px 2px 8px rgba(0, 0, 0, 0.4);
  max-width: 98vw;
  display: flex;
  flex-direction: column;
}

/* 상단 타이틀바 */
.title-bar {
  background: linear-gradient(90deg, #000080, #1084d0);
  color: white;
  padding: 3px 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: bold;
  font-size: 13px;
  letter-spacing: 0.5px;
}

.title-bar-text {
  display: flex;
  align-items: center;
  gap: 6px;
}

.title-bar-controls {
  display: flex;
  gap: 3px;
}

.title-bar-controls button {
  width: 18px;
  height: 16px;
  background: #c0c0c0;
  border-top: 1px solid #ffffff;
  border-left: 1px solid #ffffff;
  border-right: 1px solid #7b7b7b;
  border-bottom: 1px solid #7b7b7b;
  font-size: 10px;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  line-height: 1;
}

.title-bar-controls button:active {
  border-top: 1px solid #7b7b7b;
  border-left: 1px solid #7b7b7b;
  border-right: 1px solid #ffffff;
  border-bottom: 1px solid #ffffff;
}

/* 메뉴 및 컨트롤 바 */
.menu-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px 8px;
  background: #c0c0c0;
  border-bottom: 2px solid #7b7b7b;
  font-size: 13px;
}

.difficulty-select-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.difficulty-select-group select {
  padding: 3px 6px;
  background: #ffffff;
  border-top: 1px solid #7b7b7b;
  border-left: 1px solid #7b7b7b;
  border-right: 1px solid #ffffff;
  border-bottom: 1px solid #ffffff;
  font-size: 13px;
  outline: none;
  cursor: pointer;
}

.menu-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.menu-btn {
  background: #c0c0c0;
  border-top: 2px solid #ffffff;
  border-left: 2px solid #ffffff;
  border-right: 2px solid #7b7b7b;
  border-bottom: 2px solid #7b7b7b;
  padding: 3px 8px;
  font-size: 12px;
  cursor: pointer;
  font-weight: 500;
}

.menu-btn:active, .menu-btn.active {
  border-top: 2px solid #7b7b7b;
  border-left: 2px solid #7b7b7b;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  background: #e0e0e0;
}

/* 사용자 지정 패널 */
.custom-panel {
  padding: 8px 12px;
  background: #d8d8d8;
  border-bottom: 2px solid #7b7b7b;
  font-size: 13px;
}

.custom-panel.hidden {
  display: none;
}

.custom-row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.custom-row input {
  width: 55px;
  padding: 2px 4px;
  border: 1px solid #7b7b7b;
  font-size: 13px;
}

.custom-error-text {
  color: #c00000;
  font-size: 12px;
  margin-top: 4px;
}

.retro-btn {
  background: #c0c0c0;
  border-top: 2px solid #ffffff;
  border-left: 2px solid #ffffff;
  border-right: 2px solid #7b7b7b;
  border-bottom: 2px solid #7b7b7b;
  padding: 3px 12px;
  font-size: 13px;
  cursor: pointer;
}

.retro-btn:active {
  border-top: 2px solid #7b7b7b;
  border-left: 2px solid #7b7b7b;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
}

/* 메인 윈도우 바디 */
.window-body {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* 상단 스코어보드 (지뢰 카운터, 스마일, 타이머) */
.scoreboard-bevel {
  background: #c0c0c0;
  border-top: 3px solid #7b7b7b;
  border-left: 3px solid #7b7b7b;
  border-right: 3px solid #ffffff;
  border-bottom: 3px solid #ffffff;
  padding: 6px 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* 디지털 7-세그먼트 LED 디스플레이 */
.digital-display {
  background-color: #000000;
  color: #ff0000;
  font-family: 'Courier New', Courier, monospace;
  font-weight: 900;
  font-size: 26px;
  letter-spacing: 2px;
  line-height: 1;
  padding: 2px 6px;
  border-top: 2px solid #7b7b7b;
  border-left: 2px solid #7b7b7b;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  min-width: 60px;
  text-align: right;
  text-shadow: 0 0 4px rgba(255, 0, 0, 0.6);
}

/* 스마일 리셋 버튼 */
.face-btn {
  width: 36px;
  height: 36px;
  background: #c0c0c0;
  border-top: 3px solid #ffffff;
  border-left: 3px solid #ffffff;
  border-right: 3px solid #7b7b7b;
  border-bottom: 3px solid #7b7b7b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  outline: none;
}

.face-btn:active, .face-btn.pressed {
  border-top: 3px solid #7b7b7b;
  border-left: 3px solid #7b7b7b;
  border-right: 3px solid #ffffff;
  border-bottom: 3px solid #ffffff;
  padding-top: 2px;
  padding-left: 2px;
}

/* 게임 보드 외곽 음각 베벨 */
.board-bevel {
  border-top: 3px solid #7b7b7b;
  border-left: 3px solid #7b7b7b;
  border-right: 3px solid #ffffff;
  border-bottom: 3px solid #ffffff;
  background: #7b7b7b;
  overflow: auto;
  max-height: calc(85vh - 150px);
  max-width: 95vw;
}

/* 지뢰찾기 그리드 보드 */
.board {
  display: grid;
  background-color: #7b7b7b;
  gap: 0;
  width: fit-content;
  margin: 0 auto;
}

/* 개별 타일 (블록) */
.tile {
  width: 25px;
  height: 25px;
  background-color: #c0c0c0;
  border-top: 3px solid #ffffff;
  border-left: 3px solid #ffffff;
  border-right: 3px solid #7b7b7b;
  border-bottom: 3px solid #7b7b7b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 16px;
  font-family: 'Arial Black', Arial, sans-serif;
  cursor: pointer;
  box-sizing: border-box;
}

/* 열린 타일 */
.tile.revealed {
  background-color: #bdbdbd;
  border: 1px solid #7b7b7b;
  cursor: default;
}

/* 타일 마우스다운 / 임시 눌림 효과 */
.tile.pressed {
  background-color: #bdbdbd;
  border: 1px solid #7b7b7b;
}

/* 깃발 타일 */
.tile.flagged {
  font-size: 14px;
}

/* 잘못 꽂은 깃발 (게임 오버 시) */
.tile.wrong-flag {
  position: relative;
  background-color: #bdbdbd;
  border: 1px solid #7b7b7b;
}

.tile.wrong-flag::after {
  content: '❌';
  position: absolute;
  font-size: 12px;
}

/* 폭발한 지뢰 (패배 원인 지뢰) */
.tile.exploded {
  background-color: #ff0000 !important;
  border: 1px solid #7b7b7b;
}

/* 숫자별 고전 윈도우 시그니처 색상 */
.tile[data-count="1"] { color: #0000ff; } /* 1: 파랑 */
.tile[data-count="2"] { color: #008000; } /* 2: 초록 */
.tile[data-count="3"] { color: #ff0000; } /* 3: 빨강 */
.tile[data-count="4"] { color: #000080; } /* 4: 짙은 파랑 / 남색 */
.tile[data-count="5"] { color: #800000; } /* 5: 적갈색 */
.tile[data-count="6"] { color: #008080; } /* 6: 청록 */
.tile[data-count="7"] { color: #000000; } /* 7: 검정 */
.tile[data-count="8"] { color: #808080; } /* 8: 회색 */

/* 하단 상태바 */
.status-bar {
  padding: 4px 8px;
  font-size: 11px;
  color: #404040;
  border-top: 1px solid #ffffff;
  background: #c0c0c0;
}

/* 모달 대화상자 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-overlay.hidden {
  display: none;
}

.modal-dialog {
  background: #c0c0c0;
  border-top: 3px solid #ffffff;
  border-left: 3px solid #ffffff;
  border-right: 3px solid #7b7b7b;
  border-bottom: 3px solid #7b7b7b;
  box-shadow: 4px 4px 12px rgba(0, 0, 0, 0.5);
  width: 320px;
}

.modal-content {
  padding: 16px;
  font-size: 14px;
}

.modal-stats {
  margin: 12px 0;
  padding: 8px;
  background: #e8e8e8;
  border: 1px inset #7b7b7b;
  font-size: 13px;
  line-height: 1.5;
}

.modal-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

/* 모바일 전용 UI */
@media (max-width: 600px) {
  body {
    padding: 6px;
  }

  .tile {
    width: 28px;
    height: 28px;
    font-size: 15px;
  }

  .status-bar {
    font-size: 10px;
  }
}