/* ═══════════════════════════════════════════════════════════════════
   MIA GAMES — 2048 Game Styles
   File     : games/2048/2048.css
   Inherits : ../../style.css (global tokens + layout)
   ═══════════════════════════════════════════════════════════════════ */

/* ── Breadcrumb ─────────────────────────────────────────────────── */
.breadcrumb-bar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.625rem 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.breadcrumb li {
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover { color: var(--accent-purple); }

.breadcrumb [aria-current="page"] {
  color: var(--text-secondary);
  font-weight: var(--fw-medium);
}

/* ── Screen-reader only utility ─────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ── SEO Article Content ────────────────────────────────────────── */
.seo-content {
  padding: 2.5rem 0 1rem;
  border-top: 1px solid var(--border-subtle);
}

.seo-content h2 {
  font-size: clamp(var(--fs-xl), 2.5vw, var(--fs-2xl));
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.seo-content h3 {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  margin-top: 1.75rem;
  margin-bottom: 0.6rem;
}

.seo-content p {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  line-height: 1.85;
  max-width: none;
  margin-bottom: 1rem;
}

.seo-content ul {
  padding-left: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0.75rem 0 1rem;
}

.seo-content ul li {
  list-style: disc;
  font-size: var(--fs-base);
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ══════════════════════════════════════════════════════════════════
   2048 BOARD
   ══════════════════════════════════════════════════════════════════ */

.game-board-2048 {
  width: 100%;
  max-width: 460px;
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  background: #bbada0;
  border-radius: 14px;
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  position: relative;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

/* ── Cells (background) ──────────────────────────────────────────── */
.cell-2048 {
  background: rgba(238, 228, 218, 0.35);
  border-radius: 8px;
  aspect-ratio: 1 / 1;
}

/* ── Tiles ───────────────────────────────────────────────────────── */
.tile-2048 {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 700;
  font-size: 2rem;
  font-family: var(--font-display);
  transition: top 0.12s ease, left 0.12s ease;
  animation: tileSpawn 0.18s ease;
  will-change: transform, top, left;
  z-index: 10;
}

.tile-2048.tile-merged {
  animation: mergePulse 0.18s ease;
}

/* ── Tile animations ────────────────────────────────────────────── */
@keyframes tileSpawn {
  from {
    opacity: 0;
    transform: scale(0.6);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes mergePulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

/* ── Tile colors ────────────────────────────────────────────────── */
.tile-2048[data-value="2"] {
  background: #eee4da;
  color: #776e65;
}
.tile-2048[data-value="4"] {
  background: #ede0c8;
  color: #776e65;
}
.tile-2048[data-value="8"] {
  background: #f2b179;
  color: #ffffff;
}
.tile-2048[data-value="16"] {
  background: #f59563;
  color: #ffffff;
}
.tile-2048[data-value="32"] {
  background: #f67c5f;
  color: #ffffff;
}
.tile-2048[data-value="64"] {
  background: #f65e3b;
  color: #ffffff;
}
.tile-2048[data-value="128"] {
  background: #edcf72;
  color: #ffffff;
  font-size: 1.7rem;
}
.tile-2048[data-value="256"] {
  background: #edcc61;
  color: #ffffff;
  font-size: 1.7rem;
}
.tile-2048[data-value="512"] {
  background: #edc850;
  color: #ffffff;
  font-size: 1.7rem;
}
.tile-2048[data-value="1024"] {
  background: #edc53f;
  color: #ffffff;
  font-size: 1.4rem;
}
.tile-2048[data-value="2048"] {
  background: #edc22e;
  color: #ffffff;
  font-size: 1.4rem;
  box-shadow: 0 0 30px rgba(237, 194, 46, 0.4);
}
.tile-2048[data-value="4096"] {
  background: #60d992;
  color: #ffffff;
  font-size: 1.2rem;
}
.tile-2048[data-value="8192"] {
  background: #3c9a6b;
  color: #ffffff;
  font-size: 1.2rem;
}
.tile-2048[data-value="16384"] {
  background: #2a7a5a;
  color: #ffffff;
  font-size: 1rem;
}
.tile-2048[data-value="32768"] {
  background: #1a5a3a;
  color: #ffffff;
  font-size: 1rem;
}
.tile-2048[data-value="65536"] {
  background: #0a3a2a;
  color: #ffffff;
  font-size: 0.9rem;
}

/* ── Game Status Message ─────────────────────────────────────────── */
.game-status {
  font-family: var(--font-display);
  font-size: clamp(var(--fs-base), 2vw, var(--fs-lg));
  font-weight: var(--fw-semibold);
  color: var(--text-secondary);
  text-align: center;
  min-height: 1.8em;
  letter-spacing: var(--ls-snug);
  transition: color var(--transition-base);
  padding: var(--space-1) 0;
}

.game-status.status--win  { color: var(--accent-green); }
.game-status.status--lose { color: var(--accent-red);   }

/* ── Score bump animation ───────────────────────────────────────── */
.score-bump {
  animation: scoreBump 0.35s var(--ease-spring) both;
}

@keyframes scoreBump {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.45); color: var(--accent-green); }
  100% { transform: scale(1); }
}

/* ══════════════════════════════════════════════════════════════════
   GAME CONTROLS — Title always left-aligned
   ══════════════════════════════════════════════════════════════════ */

.game-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  width: 100%;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
  min-height: 48px;
}

.game-controls-title {
  font-family: var(--font-display);
  font-size: var(--fs-base);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  flex: 0 0 auto;
  white-space: nowrap;
  line-height: 1.4;
  text-align: left;  /* ← Always left-aligned */
}

.game-controls-title span {
  margin-right: 2px;
}

.game-controls-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 0 0 auto;
}

.game-controls .control-btn {
  flex: 0 0 auto;
  padding: var(--space-1) var(--space-3);
  font-size: var(--fs-xs);
  min-height: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  box-sizing: border-box;
  white-space: nowrap;
}

.game-controls .control-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.game-controls .control-btn.control-btn--primary {
  background: var(--accent-purple);
  color: #fff;
  border-color: var(--accent-purple);
}

.game-controls .control-btn.control-btn--primary:hover {
  background: var(--accent-purple-dim);
  border-color: var(--border-accent);
  color: #fff;
}

.game-controls .control-btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  stroke: currentColor;
}

.game-controls .control-btn .btn-text {
  display: inline;
}

/* ── Ensure all controls have identical height ── */
.game-controls .control-btn,
.game-controls .control-btn.control-btn--primary,
#restartBtn,
#undoBtn,
#soundBtn {
  height: 32px;
  min-height: 32px;
  max-height: 32px;
  line-height: 1;
  box-sizing: border-box;
}

/* ── Stats Row ────────────────────────────────────────────────────── */
.game-stats-row {
  display: flex;
  justify-content: space-around;
  width: 100%;
  padding: var(--space-3) 0;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.game-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-width: 60px;
}

.game-stat-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  font-weight: var(--fw-medium);
}

.game-stat-value {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  line-height: 1.2;
  transition: font-size var(--transition-base);
}

/* ── Responsive Stats Values ── */
@media (max-width: 768px) {
  .game-stat-value {
    font-size: var(--fs-lg);
  }
}

@media (max-width: 480px) {
  .game-stat-item {
    min-width: 45px;
  }

  .game-stat-label {
    font-size: 0.55rem;
    letter-spacing: var(--ls-wide);
  }

  .game-stat-value {
    font-size: var(--fs-base);
  }
}

@media (max-width: 360px) {
  .game-stat-value {
    font-size: var(--fs-sm);
  }

  .game-stat-label {
    font-size: 0.5rem;
  }

  .game-stats-row {
    gap: var(--space-1);
    padding: var(--space-2) 0;
  }
}

/* ── Responsive Status Message ──────────────────────────────────── */
@media (max-width: 480px) {
  .game-status {
    font-size: var(--fs-sm);
    min-height: 1.5em;
  }
}

@media (max-width: 360px) {
  .game-status {
    font-size: var(--fs-xs);
    min-height: 1.2em;
  }
}

/* ══════════════════════════════════════════════════════════════════
   MOBILE RESPONSIVE: Title Bar
   ──────────────────────────────────────────────────────────────────
   Desktop:  [🔢 2048]  ←──────────────────────────→  [New Game] [Undo] [🔊]
   Mobile:   [🔢 2048]  ←──────────────────────────→  [New Game] [Undo] [🔊]
             (Title always left-aligned, controls right-aligned on all screens)
   ══════════════════════════════════════════════════════════════════ */

@media (max-width: 600px) {
  .game-controls {
    flex-wrap: wrap;
    gap: var(--space-1);
    padding-bottom: var(--space-2);
  }

  .game-controls-title {
    font-size: var(--fs-sm);
    flex: 0 0 auto;  /* ← Keep title left-aligned, not full-width */
    text-align: left;  /* ← Ensure left-aligned */
    padding-bottom: 0;
    margin-bottom: 0;
  }

  .game-controls-right {
    flex: 1 1 auto;  /* ← Allow controls to take remaining space */
    justify-content: flex-end;  /* ← Keep controls right-aligned */
    gap: var(--space-1);
  }

  .game-controls .control-btn {
    padding: var(--space-1) var(--space-2);
    font-size: 0.65rem;
    min-height: 30px;
    height: 30px;
  }

  .game-controls .control-btn svg {
    width: 12px;
    height: 12px;
  }

  .game-controls .control-btn .btn-text {
    display: inline;
    font-size: 0.65rem;
  }

  .game-controls .control-btn,
  .game-controls .control-btn.control-btn--primary,
  #restartBtn,
  #undoBtn,
  #soundBtn {
    height: 30px;
    min-height: 30px;
    max-height: 30px;
  }
}

@media (max-width: 400px) {
  .game-controls-title {
    font-size: 0.7rem;
  }

  .game-controls-right {
    gap: var(--space-0.5);
  }

  .game-controls .control-btn {
    padding: var(--space-1);
    font-size: 0.55rem;
    min-height: 26px;
    height: 26px;
  }

  .game-controls .control-btn svg {
    width: 10px;
    height: 10px;
  }

  .game-controls .control-btn .btn-text {
    font-size: 0.55rem;
  }

  .game-controls .control-btn,
  .game-controls .control-btn.control-btn--primary,
  #restartBtn,
  #undoBtn,
  #soundBtn {
    height: 26px;
    min-height: 26px;
    max-height: 26px;
  }
}

/* ── Responsive Board Adjustments ────────────────────────────────── */
@media (max-width: 768px) {
  .game-board-2048 {
    max-width: 380px;
    padding: 8px;
    gap: 8px;
  }
  .tile-2048 {
    font-size: 1.6rem;
  }
  .tile-2048[data-value="128"],
  .tile-2048[data-value="256"],
  .tile-2048[data-value="512"] {
    font-size: 1.3rem;
  }
  .tile-2048[data-value="1024"],
  .tile-2048[data-value="2048"] {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .game-board-2048 {
    max-width: 320px;
    padding: 6px;
    gap: 6px;
    border-radius: 10px;
  }
  .tile-2048 {
    font-size: 1.25rem;
  }
  .tile-2048[data-value="128"],
  .tile-2048[data-value="256"],
  .tile-2048[data-value="512"] {
    font-size: 1rem;
  }
  .tile-2048[data-value="1024"],
  .tile-2048[data-value="2048"] {
    font-size: 0.9rem;
  }
  .tile-2048[data-value="4096"],
  .tile-2048[data-value="8192"] {
    font-size: 0.85rem;
  }
  .tile-2048[data-value="16384"],
  .tile-2048[data-value="32768"],
  .tile-2048[data-value="65536"] {
    font-size: 0.7rem;
  }
}

@media (max-width: 360px) {
  .game-board-2048 {
    max-width: 270px;
    padding: 4px;
    gap: 4px;
  }
  .tile-2048 {
    font-size: 1rem;
  }
}

/* ═══════════════════════════════════════════════════════════════════
   2048 GAME OVER MODAL
   ═══════════════════════════════════════════════════════════════════ */

.g2048-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: modalFadeIn 0.4s ease;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.g2048-modal-content {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--border-accent);
  animation: modalPopIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalPopIn {
  from { transform: scale(0.7); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.g2048-modal-icon {
  font-size: 3.5rem;
  margin-bottom: 0.5rem;
  display: block;
}

.g2048-modal-content h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.g2048-modal-content p {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.g2048-modal-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.g2048-modal-stat {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.5rem;
}

.g2048-modal-stat-label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  font-weight: var(--fw-medium);
}

.g2048-modal-stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  line-height: 1.2;
}

.g2048-modal-content .control-btn {
  padding: 0.75rem 2.5rem;
  font-size: var(--fs-base);
  background: var(--gradient-brand);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-weight: var(--fw-semibold);
  cursor: pointer;
  transition: transform var(--transition-spring), box-shadow var(--transition-base);
  box-shadow: 0 4px 18px rgba(124, 109, 250, 0.3);
}

.g2048-modal-content .control-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(124, 109, 250, 0.4);
}

/* Modal responsiveness */
@media (max-width: 480px) {
  .g2048-modal-content {
    padding: 1.5rem 1rem;
  }

  .g2048-modal-content h2 {
    font-size: 1.4rem;
  }

  .g2048-modal-icon {
    font-size: 2.5rem;
  }

  .g2048-modal-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.3rem;
  }

  .g2048-modal-stat {
    padding: 0.5rem 0.3rem;
  }

  .g2048-modal-stat-value {
    font-size: var(--fs-lg);
  }

  .g2048-modal-content .control-btn {
    padding: 0.6rem 1.5rem;
    font-size: var(--fs-sm);
  }
}