/* Game Page Layout */
.game-page {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 16px;
}

/* Header Adjustments */
.title-gl {
  background-image: linear-gradient(135deg, var(--color-accent-orange), var(--color-accent-yellow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* HUD */
.hud {
  width: 100%;
  max-width: 500px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 16px;
  padding: 0 16px;
}
.hud__scores {
  display: flex;
  align-items: baseline;
}
.hud__level, .hud__moves {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.05em;
}
.hud__level {
  font-size: 1.2rem;
  color: var(--color-accent-orange);
  text-shadow: 0 0 15px rgba(251, 146, 60, 0.4);
}
.hud__moves {
  font-size: 0.95rem;
  color: var(--color-accent-yellow);
  text-shadow: 0 0 15px rgba(250, 204, 21, 0.4);
}

/* Board Container */
.game-container {
  position: relative;
  width: 100%;
  max-width: 500px;
  aspect-ratio: 1;
  margin: 0 auto;
  border-radius: 12px;
  background: rgba(10, 15, 30, 0.8);
  border: 2px solid rgba(251, 146, 60, 0.2);
  box-shadow: 
    0 0 30px rgba(251, 146, 60, 0.1),
    inset 0 0 40px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none; /* Prevent scrolling while dragging in grid */
}

/* The actual 6x6 grid wrapper */
.game-board {
  position: absolute;
  top: 10px;
  left: 10px;
  bottom: 10px;
  right: 10px;
  /* Exit hole on right border for x=6 y=2 */
  border-right: 4px solid rgba(251, 146, 60, 0.15); 
}

/* This creates a pseudo-element gap in the border for the exit */
.game-board::after {
  content: '';
  position: absolute;
  right: -4px;
  top: 33.333%; /* 2/6 = 33.333% */
  height: 16.666%; /* 1/6 = 16.666% */
  width: 4px;
  background: rgba(10, 15, 30, 0.9); /* Same as game container dark bg */
  border-right: 4px dashed var(--color-accent-orange);
  box-shadow: 0 0 10px rgba(251, 146, 60, 0.5);
  animation: pulseExit 2s infinite ease-in-out;
}

@keyframes pulseExit {
  0%, 100% { border-color: rgba(251, 146, 60, 0.5); box-shadow: 0 0 5px rgba(251, 146, 60, 0.3); }
  50% { border-color: rgba(251, 146, 60, 1); box-shadow: 0 0 15px rgba(251, 146, 60, 0.8); }
}

/* Grid drawing */
.game-board-grid-bg {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: repeat(6, 1fr);
  pointer-events: none;
}
.game-board-cell {
  border: 1px dashed rgba(255, 255, 255, 0.05);
}

/* Blocks */
.block {
  position: absolute;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.4), inset 0 2px 5px rgba(255,255,255,0.1);
  cursor: grab;
  /* Instead of transition css on transform which can fight JS during dragging,
     we only enable transition when NOT dragging. 
     We'll toggle a class 'dragging' in JS. */
  transition: transform 0.15s ease-out;
  z-index: 10;
}
.block:active, .block.dragging {
  cursor: grabbing;
}
.block.dragging {
  transition: none !important; /* Instant follow pointer */
  z-index: 20;
  filter: brightness(1.25);
  box-shadow: 0 12px 24px rgba(0,0,0,0.6), inset 0 2px 5px rgba(255,255,255,0.2);
}

/* Block styles */
.block--v {
  background: linear-gradient(180deg, var(--color-accent-purple), #4c1d95);
  border: 1px solid rgba(168, 85, 247, 0.4);
}
.block--v::before { /* Grips */
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 4px; height: 30%;
  background: rgba(255,255,255,0.2);
  border-radius: 2px;
}

.block--h {
  background: linear-gradient(90deg, var(--color-accent-cyan), #047857);
  border: 1px solid rgba(6, 214, 160, 0.4);
}
.block--h::before { /* Grips */
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 30%; height: 4px;
  background: rgba(255,255,255,0.2);
  border-radius: 2px;
}

.block--target {
  background: linear-gradient(90deg, var(--color-accent-orange), #b45309);
  border: 1px solid rgba(251, 146, 60, 0.6);
  box-shadow: 0 0 20px rgba(251, 146, 60, 0.5), inset 0 2px 5px rgba(255,255,255,0.3);
  z-index: 15;
}
.block--target::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(calc(-50% - 4px), -50%);
  width: 20%; height: 4px;
  background: rgba(255,255,255,0.5);
  border-radius: 2px 0 0 2px;
}
.block--target::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(calc(-50% + 15px), -50%);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 8px solid rgba(255,255,255,0.5);
}

/* Unified Overlay Manager */
.overlay-manager {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  transition: opacity 0.3s ease;
}
.overlay-manager--hidden { opacity: 0; pointer-events: none; }
.overlay-manager--visible { opacity: 1; pointer-events: auto; }

.overlay__bg {
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 30, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.overlay-panel {
  position: absolute;
  z-index: 1;
  text-align: center;
  padding: 32px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.panel--hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.95);
}
.panel--active {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}
.overlay__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 2.5rem);
  font-weight: 900;
  margin-bottom: 12px;
  color: #fff;
}
.overlay__subtitle {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.menu-btn {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  padding: 12px 24px;
  background: rgba(251, 146, 60, 0.1);
  border: 1px solid var(--color-accent-orange);
  color: var(--color-accent-orange);
  border-radius: var(--radius-btn);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all var(--transition-fast);
}
.menu-btn:hover {
  background: var(--color-accent-orange);
  color: #000;
  box-shadow: 0 0 20px rgba(251, 146, 60, 0.4);
}

.overlay-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.menu-btn--alt {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.3);
}
.menu-btn--alt:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-color: rgba(255,255,255,0.5);
  box-shadow: none;
}

.levels-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 400px;
  width: 100%;
  margin-top: 10px;
}
.level-btn {
  background: rgba(251, 146, 60, 0.05);
  border: 1px solid rgba(251, 146, 60, 0.2);
  border-radius: var(--radius-btn);
  padding: 16px 8px;
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.level-btn:hover:not(:disabled) {
  background: rgba(251, 146, 60, 0.2);
  border-color: var(--color-accent-orange);
  box-shadow: 0 0 15px rgba(251, 146, 60, 0.3);
}
.level-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  filter: grayscale(1);
}
.level-btn__score {
  font-size: 0.75rem;
  font-family: var(--font-body);
  color: var(--color-accent-yellow);
  font-weight: 400;
  min-height: 1.1em;
}

/* Footer / Controls */
.controls-row {
  margin-top: 24px;
  display: flex;
  gap: 16px;
}
.icon-btn {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 16px;
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.icon-btn:hover:not(:disabled) {
  color: #fff;
  border-color: rgba(255,255,255,0.4);
  background: rgba(255,255,255,0.1);
}
.icon-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}