/* --- CSS VARIABLES & RESET --- */
#mms-container.mms-container {
  --bg-color: #121212;
  --tile-hidden: #1e1e1e;
  --tile-revealed: #2a2a2a;
  --border-color: #333333;
  --accent-neon: #00f3ff;
  --accent-danger: #ff3366;
  --text-color: #fafafa;
  --font-family:
    "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;

  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-family);
  padding: 24px;
  border-radius: 16px;
  width: min(100%, 500px) !important;
  max-width: 500px !important;
  margin-left: auto !important;
  margin-right: auto !important;
  box-sizing: border-box;
  position: relative;
  z-index: 1;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  overscroll-behavior: contain;
}
.mms-container * {
  box-sizing: border-box;
}

/* --- HEADER (Difficulty) --- */
.mms-header {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}
.mms-btn {
  flex: 1;
  background: var(--tile-hidden);
  color: #787c7e;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  padding: 14px;
  font-weight: 800;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.5px;
}
.mms-btn:hover {
  background: #252525;
}
.mms-btn.active {
  background: var(--tile-revealed);
  color: var(--text-color);
  border-color: var(--accent-neon);
  box-shadow: 0 0 15px rgba(0, 243, 255, 0.15);
}
.mms-icon-btn {
  background: var(--tile-hidden);
  color: var(--text-color);
  border: 2px solid var(--border-color);
  border-radius: 8px;
  padding: 0 14px;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.mms-icon-btn:hover {
  background: #252525;
}
.mms-icon-btn:active {
  transform: scale(0.95);
}

/* --- TOP BAR (Stats) --- */
.mms-stats {
  display: flex;
  justify-content: space-between;
  background: #181818;
  padding: 16px 24px;
  border-radius: 12px;
  margin-bottom: 24px;
  border: 1px solid var(--border-color);
}
.mms-stat-box {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.mms-stat-label {
  font-size: 11px;
  color: #787c7e;
  margin-bottom: 6px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 700;
}
.mms-stat-value {
  font-size: 26px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  color: var(--accent-neon);
  text-shadow: 0 0 8px rgba(0, 243, 255, 0.3);
  line-height: 1;
}

/* --- GAME GRID --- */
.mms-grid-wrapper {
  width: 100%;
  overflow: hidden;
  border-radius: 8px;
  -ms-overflow-style: none;
  scrollbar-width: none;
  overscroll-behavior: contain;
}
.mms-grid-wrapper::-webkit-scrollbar {
  display: none;
}
.mms-grid {
  display: grid;
  gap: 2px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  background: var(--border-color);
  border: 2px solid var(--border-color);
  border-radius: 8px;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}
.mms-tile {
  background: var(--tile-hidden);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  cursor: pointer;
  transition: background 0.15s ease;
  -webkit-tap-highlight-color: transparent;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}
.mms-tile:active {
  background: #252525;
}
.mms-tile.revealed {
  background: var(--tile-revealed);
  cursor: default;
}
.mms-tile.mine-blast {
  background: var(--accent-danger) !important;
}

/* --- MINIMALIST GEOMETRIC SYMBOLS --- */
.mms-symbol-mine {
  width: 45%;
  height: 45%;
  background-color: var(--accent-danger);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-danger);
  pointer-events: none;
}
.mms-symbol-flag {
  width: 0;
  height: 0;
  border-left: 0.35em solid transparent;
  border-right: 0.35em solid transparent;
  border-bottom: 0.7em solid var(--accent-neon);
  filter: drop-shadow(0 0 4px var(--accent-neon));
  transform: translateY(-5%);
  pointer-events: none;
}
.mms-symbol-flag-btn {
  font-size: 16px;
  display: inline-block;
  transform: translateY(-2px);
}

/* --- NEON NUMBER COLORS --- */
.mms-n1 {
  color: #00f3ff;
  text-shadow: 0 0 4px rgba(0, 243, 255, 0.4);
}
.mms-n2 {
  color: #00ff66;
  text-shadow: 0 0 4px rgba(0, 255, 102, 0.4);
}
.mms-n3 {
  color: #ff3366;
  text-shadow: 0 0 4px rgba(255, 51, 102, 0.4);
}
.mms-n4 {
  color: #ff00cc;
  text-shadow: 0 0 4px rgba(255, 0, 204, 0.4);
}
.mms-n5 {
  color: #ffcc00;
  text-shadow: 0 0 4px rgba(255, 204, 0, 0.4);
}
.mms-n6 {
  color: #00ccff;
  text-shadow: 0 0 4px rgba(0, 204, 255, 0.4);
}
.mms-n7 {
  color: #ffffff;
  text-shadow: 0 0 4px rgba(255, 255, 255, 0.4);
}
.mms-n8 {
  color: #aaaaaa;
}

/* --- MOBILE CONTROLS (Shovel / Flag) --- */
.mms-controls {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}
.mms-ctrl-btn {
  flex: 1;
  background: var(--tile-hidden);
  color: #787c7e;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  padding: 16px;
  font-weight: 800;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.2s;
}
.mms-ctrl-btn.active[data-mode="shovel"] {
  border-color: #fafafa;
  color: #fafafa;
  background: #252525;
}
.mms-ctrl-btn.active[data-mode="flag"] {
  border-color: var(--accent-neon);
  color: var(--accent-neon);
  background: rgba(0, 243, 255, 0.08);
}

/* --- SHORTCUTS HINT --- */
.mms-controls-hint {
  display: flex;
  justify-content: center;
  gap: 10px;
  font-size: 12px;
  color: #aaaaaa;
  margin-top: 15px;
}
.mms-controls-hint span {
  background: var(--tile-hidden);
  padding: 6px 12px;
  border-radius: 6px;
  font-weight: 600;
  border: 1px solid var(--border-color);
}

/* --- POPUP UI --- */
.mms-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(18, 18, 18, 0.75);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition:
    opacity 0.4s ease,
    visibility 0s linear 0.4s;
  border-radius: 16px;
  z-index: 20;
}
.mms-overlay.show {
  opacity: 1;
  pointer-events: all;
  visibility: visible;
  transition:
    opacity 0.4s ease,
    visibility 0s linear 0s;
}
.mms-popup {
  background: var(--tile-hidden);
  padding: 32px 24px;
  border-radius: 16px;
  text-align: center;
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
  transform: translateY(20px);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  width: 85%;
  max-width: 400px;
  max-height: 90%;
  overflow-y: auto;
}
.mms-overlay.show .mms-popup {
  transform: translateY(0);
}
.mms-popup-title {
  font-size: 26px;
  font-weight: 900;
  margin: 0 0 12px 0;
  letter-spacing: 1px;
}
.mms-popup-title.over {
  color: var(--accent-danger);
}
.mms-popup-title.clear {
  color: #00ff66;
  text-shadow: 0 0 10px rgba(0, 255, 102, 0.3);
}
.mms-popup-desc {
  color: #aaaaaa;
  font-size: 15px;
  margin-bottom: 24px;
  line-height: 1.6;
  word-break: keep-all;
}
.mms-restart-btn {
  background: var(--text-color);
  color: var(--bg-color);
  border: none;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 800;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.1s;
  width: 100%;
}
.mms-restart-btn:active {
  transform: scale(0.95);
}

/* --- GAME OVER RED FADE ANIMATION --- */
.mms-container.game-over-flash::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 51, 102, 0.2);
  pointer-events: none;
  z-index: 15;
  animation: mms-flash 1.5s forwards ease-out;
}
@keyframes mms-flash {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

/* --- AUTH FORM OVERRIDES (DARK THEME) --- */
#mms-container .mms-auth-wrap {
  /* background-color: var(--tile-hidden);
  padding: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color); */
}
#mms-container .mms-auth-wrap .auth-input {
  background-color: var(--bg-color);
  color: var(--text-color);
  border-color: var(--border-color);
}
#mms-container .mms-auth-wrap .auth-input:focus {
  border-color: var(--accent-neon);
  background-color: var(--tile-revealed);
}
#mms-container .mms-auth-wrap .auth-section-title {
  color: var(--text-color);
}
#mms-container .mms-auth-wrap .auth-section-desc {
  color: #aaaaaa;
}
#mms-container .mms-auth-wrap .auth-section-wrapper {
  border-top-color: var(--border-color);
}
#mms-container .mms-auth-wrap #kwordle-ajax-auth-btn {
  background-color: var(--border-color);
  color: var(--text-color);
}
#mms-container .mms-auth-wrap #kwordle-ajax-auth-btn:hover {
  background-color: #444444;
}

/* --- MOBILE RESPONSIVE --- */
@media (max-width: 767px) {
  .mms-controls-hint {
    display: none;
  }
}
@media (max-width: 450px) {
  #mms-container.mms-container {
    padding: 12px;
    border-radius: 12px;
  }
  .mms-grid {
    gap: 1px;
    border-width: 1px;
  }
  .mms-header {
    gap: 6px;
    margin-bottom: 16px;
  }
  .mms-btn {
    padding: 11px 6px;
    font-size: 12px;
  }
  .mms-icon-btn {
    padding: 0 10px;
  }
  .mms-stats {
    margin-bottom: 16px;
    padding: 13px 18px;
  }
  .mms-controls {
    gap: 8px;
    margin-top: 16px;
  }
  .mms-ctrl-btn {
    padding: 13px 8px;
    font-size: 14px;
  }
  .mms-popup {
    width: 95%;
    padding: 24px 16px;
  }
}