button, 
input[type="button"], 
input[type="submit"], 
input[type="reset"],
.role-btn,
.floating-qa-btn {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

connect-four-card {
  display: flex;
  justify-content: center;
  flex: 0 1 auto;
}

connect-four-card .game-card {
  width: 100%;
  max-width: 460px;
  box-sizing: border-box;
  background-color: var(--bg-card-body);
  border-radius: 20px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  position: relative;
  overflow: hidden;
}

connect-four-card .game-body {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: 520px;
  padding: 20px;
  box-sizing: border-box;
  gap: 4px;
}

connect-four-card .c4-game-status {
  min-height: 0;
  margin: 0 0 4px 0;
  text-align: center;
  font-size: 0.85rem;
}

@keyframes slowBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

.c4-blink-text {
  animation: slowBlink 2.5s infinite ease-in-out;
}

.c4-neon-red {
  color: #ff4d4d;
  text-shadow: 0 0 8px #ff0000, 0 0 15px #ff0000, 0 0 25px #ff0000;
  font-weight: bold;
  font-size: 1.1rem;
}

.c4-game-status-row {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  margin: 0;
}

.c4-options-row {
  display: flex;
  gap: 12px;
  margin-top: 0;
  margin-bottom: 8px;
  justify-content: center;
  align-items: center;
  font-size: 0.8rem;
  opacity: 0.9;
}

.c4-option-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-weight: 500;
  color: var(--color-accent, #d1db9e);
}

.c4-select {
  background: var(--color-control);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #F0E6CF;
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 0.8rem;
  cursor: pointer;
}

.c4-select:focus {
  outline: none;
  border-color: var(--color-accent, #d1db9e);
}

.c4-board-container {
  position: relative;
  display: inline-block;
}

.c4-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(20, 24, 18, 0.85);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  text-align: center;
  padding: 0 10px;
  box-sizing: border-box;
  z-index: 2;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  pointer-events: auto;
}

.c4-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Clean, modern grid board */
.c4-board {
  display: grid;
  grid-template-columns: repeat(7, 35px);
  grid-template-rows: repeat(6, 35px);
  gap: 6px;
  background-color: var(--bg-dark);
  padding: 10px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Simple cutout cell */
.c4-cell {
  width: 35px;
  height: 35px;
  background-color: var(--bg-card-body);
  border-radius: 50%;
  cursor: pointer;
  border: 1px solid var(--color-control);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
  touch-action: manipulation;
  overflow: hidden;
  box-sizing: border-box;
}

@keyframes dropCoin {
  0% {
    transform: translateY(-160px);
    opacity: 0;
  }
  70% {
    transform: translateY(6px);
    opacity: 1;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Base coin highlight & slight edge shadow */
.c4-cell.player,
.c4-cell.ai {
  border: none;
  box-shadow: 
    inset 0 2px 3px rgba(255, 255, 255, 0.45),
    inset 0 -2px 4px rgba(0, 0, 0, 0.35),
    0 2px 4px rgba(0, 0, 0, 0.25);
}

/* Smooth Yellow Coin */
.c4-cell.player.player-yellow,
.c4-cell.ai.ai-yellow {
  background: radial-gradient(circle at 35% 30%, #fff176 0%, #ffd54f 45%, #f57f17 100%);
}

/* Smooth Red Coin */
.c4-cell.player.player-red,
.c4-cell.ai.ai-red {
  background: radial-gradient(circle at 35% 30%, #ff8a80 0%, #ff5252 45%, #b71c1c 100%);
}

.c4-cell.dropping {
  animation: dropCoin 0.35s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

.c4-action-row {
  display: flex;
  gap: 8px;
  width: 100%;
  justify-content: center;
  margin-top: 28px;
}

.flex-1 {
  flex: 1;
}

.c4-help-label {
  font-size: 0.8rem;
  font-weight: bold;
  margin-top: 10px;
  margin-bottom: 6px;
  color: var(--color-accent, #d1db9e);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.c4-items-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
  background: rgba(30, 35, 25, 0.6);
  padding: 10px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.c4-winning-legend {
  display: flex;
  justify-content: space-around;
  align-items: center;
  width: 100%;
}

.c4-legend-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
}

.c4-token-row {
  display: flex;
  gap: 2px;
}

.c4-token-col {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.c4-token-grid {
  display: grid;
  grid-template-columns: repeat(4, 12px);
  grid-template-rows: repeat(4, 12px);
  gap: 2px;
}

.c4-legend-token {
  width: 12px;
  height: 12px;
  background: radial-gradient(circle at 35% 30%, #fff176 0%, #ffd54f 60%, #f57f17 100%);
  border-radius: 50%;
}

.c4-pos-1 { grid-column: 1; grid-row: 1; }
.c4-pos-2 { grid-column: 2; grid-row: 2; }
.c4-pos-3 { grid-column: 3; grid-row: 3; }
.c4-pos-4 { grid-column: 4; grid-row: 4; }

.c4-legend-label {
  opacity: 0.8;
}

connect-four-card .game-help-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-card-body);
  border-radius: 20px;
  z-index: 50;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-sizing: border-box;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

connect-four-card .game-help-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

@media (max-width: 768px) {
  .c4-board {
    grid-template-columns: repeat(7, minmax(32px, 40px));
    grid-template-rows: repeat(6, minmax(32px, 40px));
    gap: 5px;
    padding: 8px;
  }

  .c4-cell {
    width: 100%;
    height: 100%;
  }
}

@media (max-width: 380px) {
  .c4-board {
    grid-template-columns: repeat(7, 30px);
    grid-template-rows: repeat(6, 30px);
  }    
}