/* ═══════════════════════════════════════════════════════════════════
   MIA GAMES — Sudoku Styles
   File     : games/sudoku/sudoku.css
   Inherits : ../../style.css
   ═══════════════════════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════════════════════════
   01. BREADCRUMB & UTILITIES
   ═══════════════════════════════════════════════════════════════════ */

.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);
}

.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;
}


/* ═══════════════════════════════════════════════════════════════════
   02. GAME AREA LAYOUT
   ═══════════════════════════════════════════════════════════════════ */

.sdk-game-area {
  min-height: unset;
  width: 100%;
  padding: var(--space-5);
  gap: var(--space-5);
  align-items: center;
  overflow: visible;
  touch-action: auto;
  pointer-events: auto;
  box-sizing: border-box;
}


/* ═══════════════════════════════════════════════════════════════════
   03. GAME CONTROLS — Title left, button right, consistent heights
   ═══════════════════════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════════════════════════
   GAME CONTROLS — Title left, button right, same row
   ═══════════════════════════════════════════════════════════════════ */

.sdk-game-area .game-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: var(--space-2);
  width: 100%;
  max-width: 100%;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
  min-height: 48px;
  position: relative;
  z-index: 10;
  pointer-events: auto;
  touch-action: manipulation;
  box-sizing: border-box;
  overflow: hidden;  /* ← Prevent overflow */
}

.sdk-game-area .game-controls-title {
  font-family: var(--font-display);
  font-size: var(--fs-base);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  flex: 0 1 auto;  /* ← Allow shrinking if needed */
  white-space: nowrap;
  line-height: 1.4;
  text-align: left;
  max-width: 70%;  /* ← Prevent title from taking too much space */
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.sdk-game-area .game-controls .game-controls-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 0 0 auto;  /* ← Don't grow, stay at content size */
  justify-content: flex-end;
  min-width: 0;
  flex-wrap: nowrap;
}

/* ── Ensure all controls have identical height ── */
.sdk-game-area .game-controls .control-btn,
.sdk-game-area .game-controls .control-btn.control-btn--primary,
.sdk-game-area .game-controls button,
#sdkNewGame {
  height: 32px;
  min-height: 32px;
  max-height: 32px;
  line-height: 1;
  box-sizing: border-box;
  padding: 0;
  font-size: 0;
  min-width: 32px;
  width: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  color: var(--text-secondary);
  cursor: pointer;
  pointer-events: auto;
  touch-action: manipulation;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  box-sizing: border-box;
  flex-shrink: 0;  /* ← Prevent button from shrinking */
}

.sdk-game-area .game-controls .control-btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  display: block;
}

/* ── Hide text on all control buttons (icon only) ── */
.sdk-game-area .game-controls .control-btn .btn-text {
  display: none !important;
}

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

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

/* ═══════════════════════════════════════════════════════════════════
   04. INFO BAR — timer + mistakes
   ═══════════════════════════════════════════════════════════════════ */

.sdk-info-bar {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  width: 100%;
  max-width: var(--sdk-board-size, 450px);
  gap: var(--space-3);
  box-sizing: border-box;
}

.sdk-info-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-2) var(--space-4);
  flex: 1;
  justify-content: center;
  min-height: 44px;
  height: 100%;
  box-sizing: border-box;
}

.sdk-info-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  font-weight: var(--fw-medium);
  white-space: nowrap;
}

.sdk-info-value {
  font-family: var(--font-mono);
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  line-height: 1;
  min-width: 3ch;
  text-align: center;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* Fix for the mistakes count display */
#sdkMistakes {
  display: inline-block;
  min-width: 4ch;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

/* Mistakes turn red when approaching limit */
.sdk-info-item.mistakes-danger .sdk-info-value {
  color: var(--accent-red);
}

.sdk-info-item.mistakes-warning .sdk-info-value {
  color: var(--accent-amber);
}

/* Ensure the mistakes item doesn't stretch taller than others */
.sdk-info-item:last-child {
  flex: 1;
  max-height: 44px;
}


/* ═══════════════════════════════════════════════════════════════════
   05. SUDOKU BOARD
   ═══════════════════════════════════════════════════════════════════ */

.sdk-board-wrap {
  width: 100%;
  display: flex;
  justify-content: center;
  touch-action: auto;
  pointer-events: auto;
}

.sdk-board {
  display: grid;
  grid-template-columns: repeat(9, var(--sdk-cell, 48px));
  grid-template-rows: repeat(9, var(--sdk-cell, 48px));
  gap: 0;
  background: var(--sdk-line-thin, rgba(255, 255, 255, 0.10));
  border: 3px solid var(--sdk-line-thick, var(--accent-purple));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  overflow: hidden;
  touch-action: auto;
  pointer-events: auto;
  box-sizing: border-box;
}

/* Theme-aware board line colours */
:root,
[data-theme="dark"] {
  --sdk-line-thin: rgba(255, 255, 255, 0.08);
  --sdk-line-thick: rgba(124, 109, 250, 0.70);
  --sdk-bg-given: rgba(124, 109, 250, 0.10);
  --sdk-bg-select: rgba(124, 109, 250, 0.22);
  --sdk-bg-peer: rgba(124, 109, 250, 0.07);
  --sdk-bg-same: rgba(62, 207, 207, 0.12);
  --sdk-bg-error: rgba(240, 82, 82, 0.18);
  --sdk-bg-hint: rgba(52, 211, 153, 0.20);
  --sdk-num-given: #eaeaf5;
  --sdk-num-user: #7c6dfa;
  --sdk-num-error: #f05252;
  --sdk-num-hint: #34d399;
  --sdk-note-col: #5c5c7a;
}

[data-theme="light"] {
  --sdk-line-thin: rgba(0, 0, 0, 0.08);
  --sdk-line-thick: rgba(101, 87, 245, 0.65);
  --sdk-bg-given: rgba(101, 87, 245, 0.08);
  --sdk-bg-select: rgba(101, 87, 245, 0.18);
  --sdk-bg-peer: rgba(101, 87, 245, 0.05);
  --sdk-bg-same: rgba(15, 168, 168, 0.10);
  --sdk-bg-error: rgba(220, 38, 38, 0.12);
  --sdk-bg-hint: rgba(5, 150, 105, 0.15);
  --sdk-num-given: #12122a;
  --sdk-num-user: #6557f5;
  --sdk-num-error: #dc2626;
  --sdk-num-hint: #059669;
  --sdk-note-col: #9898b0;
}


/* ═══════════════════════════════════════════════════════════════════
   06. BOARD CELL — BASE & STATES
   ═══════════════════════════════════════════════════════════════════ */

.sdk-cell {
  width: var(--sdk-cell, 48px);
  height: var(--sdk-cell, 48px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border-right: 1px solid var(--sdk-line-thin);
  border-bottom: 1px solid var(--sdk-line-thin);
  cursor: pointer;
  position: relative;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  pointer-events: auto;
  -webkit-tap-highlight-color: transparent;
  transition: background var(--transition-fast);
  box-sizing: border-box;
}

/* Remove right border for cells at col 9, bottom border for row 9 */
.sdk-cell:nth-child(9n) {
  border-right: none;
}

.sdk-cell:nth-child(n+73) {
  border-bottom: none;
}

/* THICK borders after every 3rd column (box separators) */
.sdk-cell.box-right {
  border-right: 2px solid var(--sdk-line-thick);
}

.sdk-cell.box-bottom {
  border-bottom: 2px solid var(--sdk-line-thick);
}

/* ── Cell States ── */
.sdk-cell.given {
  background: var(--sdk-bg-given);
  cursor: default;
}

.sdk-cell.selected {
  background: var(--sdk-bg-select) !important;
}

.sdk-cell.peer {
  background: var(--sdk-bg-peer);
}

.sdk-cell.same-num {
  background: var(--sdk-bg-same);
}

.sdk-cell.error {
  background: var(--sdk-bg-error);
}

/* ── HINT CELL — GREEN background and number ── */
.sdk-cell.hint-cell {
  background: var(--sdk-bg-hint) !important;
  animation: sdkHint 0.55s var(--ease-spring) both;
}

.sdk-cell.hint-cell .sdk-cell-num,
.sdk-cell.hint-cell.hint-anim .sdk-cell-num {
  color: var(--sdk-num-hint) !important;
}

/* Hover (non-given cells only) */
.sdk-cell:not(.given):not(.selected):hover {
  background: var(--bg-surface);
}

/* Focus ring for keyboard navigation */
.sdk-cell:focus-visible {
  outline: 2px solid var(--accent-purple);
  outline-offset: -2px;
  z-index: 2;
}

/* ── Animations ── */
.sdk-cell.shake {
  animation: sdkShake 0.38s ease both;
}

@keyframes sdkShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

.sdk-cell.pop {
  animation: sdkPop 0.28s var(--ease-spring) both;
}

@keyframes sdkPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.18); }
  100% { transform: scale(1); }
}

@keyframes sdkHint {
  0% {
    transform: scale(1);
    background: var(--sdk-bg-hint);
  }
  40% {
    transform: scale(1.22);
    background: rgba(52, 211, 153, 0.35);
  }
  100% {
    transform: scale(1);
    background: var(--sdk-bg-hint);
  }
}


/* ═══════════════════════════════════════════════════════════════════
   07. CELL NUMBER & NOTES GRID
   ═══════════════════════════════════════════════════════════════════ */

/* Main digit */
.sdk-cell-num {
  font-family: var(--font-display);
  font-size: calc(var(--sdk-cell, 48px) * 0.50);
  font-weight: var(--fw-bold);
  line-height: 1;
  pointer-events: none;
  transition: color var(--transition-fast);
}

.sdk-cell.given .sdk-cell-num {
  color: var(--sdk-num-given);
}

.sdk-cell:not(.given) .sdk-cell-num {
  color: var(--sdk-num-user);
}

.sdk-cell.error .sdk-cell-num {
  color: var(--sdk-num-error);
}

.sdk-cell.hint-cell .sdk-cell-num,
.sdk-cell.hint-cell.hint-anim .sdk-cell-num,
.sdk-cell.hint-anim .sdk-cell-num {
  color: var(--sdk-num-hint) !important;
}

/* Completion: all cells of a completed number glow */
.sdk-cell.complete-num .sdk-cell-num {
  color: var(--accent-green);
}

.sdk-cell.hint-cell,
.sdk-cell.hint-cell.hint-anim {
  background: var(--sdk-bg-hint) !important;
}

/* Notes grid — 3×3 inside each cell */
.sdk-notes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  width: calc(var(--sdk-cell, 48px) * 0.90);
  height: calc(var(--sdk-cell, 48px) * 0.90);
  pointer-events: none;
  gap: 0;
}

.sdk-note {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: calc(var(--sdk-cell, 48px) * 0.20);
  font-weight: var(--fw-semibold);
  color: var(--sdk-note-col);
  line-height: 1;
  opacity: 0;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}

.sdk-note.active {
  opacity: 1;
}

/* Highlight note that matches selected cell's number */
.sdk-note.active.highlighted {
  color: var(--accent-purple);
}


/* ═══════════════════════════════════════════════════════════════════
   08. NUMBER PAD
   ═══════════════════════════════════════════════════════════════════ */

.sdk-numpad {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: var(--space-2);
  width: 100%;
  max-width: var(--sdk-board-size, 450px);
  box-sizing: border-box;
}

.sdk-num-btn {
  aspect-ratio: 1;
  min-width: 0;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: clamp(var(--fs-base), 2.5vw, var(--fs-xl));
  font-weight: var(--fw-bold);
  cursor: pointer;
  pointer-events: auto;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-spring);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.sdk-num-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.sdk-num-btn:active {
  transform: scale(0.93);
}

.sdk-num-btn.active {
  background: var(--accent-purple-dim);
  color: var(--accent-purple);
  border-color: var(--border-accent);
}

/* Remaining count badge */
.sdk-num-badge {
  position: absolute;
  top: 3px;
  right: 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  line-height: 1;
  font-weight: var(--fw-medium);
}

/* When a digit is fully placed, dim the button */
.sdk-num-btn.exhausted {
  opacity: 0.30;
  cursor: default;
  pointer-events: none;
}


/* ═══════════════════════════════════════════════════════════════════
   09. ACTION TOOLBAR
   ═══════════════════════════════════════════════════════════════════ */

.sdk-toolbar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  width: 100%;
  max-width: var(--sdk-board-size, 450px);
  flex-wrap: wrap;
  box-sizing: border-box;
}

.sdk-tool-btn {
  flex: 1;
  min-width: 0;
  max-width: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: var(--space-3) var(--space-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  color: var(--text-secondary);
  cursor: pointer;
  pointer-events: auto;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  font-family: var(--font-body);
}

.sdk-tool-btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sdk-tool-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  white-space: nowrap;
}

.sdk-tool-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

/* Notes mode active */
.sdk-tool-btn.notes-on {
  background: var(--accent-teal-dim);
  color: var(--accent-teal);
  border-color: rgba(62, 207, 207, 0.35);
}

/* Hint button — shows remaining hints count */
.sdk-tool-btn.hint-btn {
  position: relative;
}

.sdk-hint-count {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-purple);
  color: #fff;
  font-size: 0.60rem;
  font-weight: var(--fw-bold);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}


/* ═══════════════════════════════════════════════════════════════════
   10. DIFFICULTY SELECTOR TABS
   ═══════════════════════════════════════════════════════════════════ */

.sdk-diff-tabs {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.sdk-diff-tab {
  padding: var(--space-2) var(--space-5);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  cursor: pointer;
  pointer-events: auto;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
  min-height: 36px;
}

.sdk-diff-tab:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.sdk-diff-tab.active {
  background: var(--accent-purple-dim);
  color: var(--accent-purple);
  border-color: var(--border-accent);
  box-shadow: 0 0 0 1px var(--border-accent);
}


/* ═══════════════════════════════════════════════════════════════════
   11. 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;
  margin: 0;
}


/* ═══════════════════════════════════════════════════════════════════
   12. RESULT OVERLAY
   ═══════════════════════════════════════════════════════════════════ */

.sdk-result-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(13, 13, 26, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

[data-theme="light"] .sdk-result-overlay {
  background: rgba(245, 245, 252, 0.85);
}

.sdk-result-overlay.is-visible {
  opacity: 1;
  pointer-events: all;
}

.sdk-result-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 4vw, 2.5rem) clamp(1.5rem, 5vw, 3.5rem);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  box-shadow: var(--shadow-lg);
  max-width: 420px;
  width: calc(100% - 2rem);
  animation: sdkResultPop 0.45s var(--ease-spring) both;
}

@keyframes sdkResultPop {
  from { transform: scale(0.75) translateY(24px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.sdk-result-emoji {
  font-size: 3rem;
  line-height: 1;
}

.sdk-result-title {
  font-family: var(--font-display);
  font-size: clamp(var(--fs-xl), 4vw, var(--fs-2xl));
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  margin: 0;
}

.sdk-result-sub {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

.sdk-result-stats {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-4) var(--space-6);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  justify-content: center;
}

.sdk-result-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.sdk-result-stat-value {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--accent-teal);
  line-height: 1;
}

.sdk-result-stat-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
}

.sdk-new-best {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--accent-amber-dim);
  border: 1px solid var(--accent-amber);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--accent-amber);
  animation: badgePop 0.4s var(--ease-spring) 0.5s both;
}

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

.sdk-result-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}

.sdk-result-actions .btn {
  pointer-events: auto;
  touch-action: manipulation;
}


/* ═══════════════════════════════════════════════════════════════════
   13. SESSION STATS SIDEBAR CARD
   ═══════════════════════════════════════════════════════════════════ */

.sdk-best-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.sdk-best-stat {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sdk-best-value {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  line-height: 1;
}

.sdk-best-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
}


/* ═══════════════════════════════════════════════════════════════════
   14. SEO 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;
}

.seo-content h3 {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  margin: 1.75rem 0 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;
}


/* ═══════════════════════════════════════════════════════════════════
   15. RESPONSIVE BREAKPOINTS
   ═══════════════════════════════════════════════════════════════════ */

/* Tablet — game controls wrap */
@media (max-width: 900px) {
  .sdk-game-area .game-controls-title {
    width: 100%;
    flex-basis: 100%;
  }
}

@media (max-width: 768px) {
  .sdk-game-area {
    padding: var(--space-4);
    gap: var(--space-4);
  }

  .sdk-numpad {
    gap: var(--space-1);
  }

  .sdk-toolbar {
    gap: var(--space-2);
  }
}

/* ── Mobile Responsive: Controls ── */
@media (max-width: 600px) {
  .sdk-game-area .game-controls {
    gap: var(--space-1);
    padding-bottom: var(--space-2);
    min-height: 40px;
  }

  .sdk-game-area .game-controls-title {
    font-size: var(--fs-sm);
    flex: 0 1 auto;
    max-width: 65%;
  }

  .sdk-game-area .game-controls .game-controls-right {
    gap: var(--space-1);
    flex: 0 0 auto;
  }

  .sdk-game-area .game-controls .control-btn,
  .sdk-game-area .game-controls .control-btn.control-btn--primary,
  .sdk-game-area .game-controls button,
  #sdkNewGame {
    height: 28px;
    min-height: 28px;
    max-height: 28px;
    min-width: 28px;
    width: 28px;
    padding: 0;
  }

  .sdk-game-area .game-controls .control-btn svg {
    width: 14px;
    height: 14px;
  }

  .sdk-game-area .game-controls .control-btn .btn-text {
    display: none !important;
  }

  .sdk-game-area .game-controls .control-btn.control-btn--primary {
    width: 28px;
    min-width: 28px;
    padding: 0;
  }

  .sdk-game-area .game-controls .control-btn.control-btn--primary .btn-text {
    display: none !important;
  }

  /* ── Info Bar ── */
  .sdk-info-bar {
    gap: var(--space-2);
  }

  .sdk-info-item {
    padding: var(--space-1) var(--space-2);
    min-height: 36px;
    max-height: 36px;
    gap: var(--space-1);
  }

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

  .sdk-info-value {
    font-size: var(--fs-base);
    min-width: 2.5ch;
  }

  .sdk-info-item:last-child {
    max-height: 36px;
  }

  .sdk-info-item:last-child .sdk-info-value {
    font-size: var(--fs-sm);
    min-width: 4ch;
  }

  /* ── Toolbar ── */
  .sdk-toolbar .sdk-tool-label {
    display: none;
  }

  .sdk-toolbar .sdk-tool-btn {
    flex: 0 0 auto;
    min-width: 44px;
    padding: var(--space-2);
  }

  /* ── Status Message ── */
  .game-status {
    font-size: var(--fs-sm);
    min-height: 1.5em;
  }
}

@media (max-width: 480px) {
  .sdk-game-area {
    padding: var(--space-3);
    gap: var(--space-3);
    border-radius: var(--radius-lg);
  }

  .sdk-tool-btn {
    padding: var(--space-2);
  }

  .sdk-diff-tab {
    padding: var(--space-2) var(--space-3);
    font-size: var(--fs-xs);
    min-height: 30px;
  }

  /* ── Info Bar ── */
  .sdk-info-bar {
    gap: var(--space-1);
  }

  .sdk-info-item {
    padding: var(--space-1);
    min-height: 32px;
    max-height: 32px;
    border-radius: var(--radius-md);
    gap: var(--space-1);
  }

  .sdk-info-label {
    display: none;
  }

  .sdk-info-value {
    font-size: var(--fs-sm);
    min-width: 2ch;
  }

  .sdk-info-item:last-child {
    max-height: 32px;
  }

  .sdk-info-item span:first-child {
    font-size: 0.8rem;
  }

  /* ── Status Message ── */
  .game-status {
    font-size: var(--fs-sm);
    min-height: 1.3em;
  }
}

@media (max-width: 400px) {
  .sdk-game-area {
    padding: var(--space-2);
    gap: var(--space-2);
  }

  .sdk-numpad {
    gap: 2px;
  }

  .sdk-game-area .game-controls-title {
    font-size: 0.7rem;
    max-width: 60%;
  }

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

  .sdk-game-area .game-controls .control-btn,
  .sdk-game-area .game-controls .control-btn.control-btn--primary,
  .sdk-game-area .game-controls button,
  #sdkNewGame {
    height: 24px;
    min-height: 24px;
    max-height: 24px;
    min-width: 24px;
    width: 24px;
    padding: 0;
  }

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

  .sdk-game-area .game-controls .control-btn .btn-text {
    display: none !important;
  }

  .sdk-game-area .game-controls .control-btn.control-btn--primary {
    width: 24px;
    min-width: 24px;
    padding: 0;
  }

  .sdk-game-area .game-controls .control-btn.control-btn--primary .btn-text {
    display: none !important;
  }

  .sdk-diff-tab {
    padding: var(--space-1) var(--space-2);
    font-size: 0.6rem;
    min-height: 26px;
  }

  .game-status {
    font-size: var(--fs-xs);
    min-height: 1.2em;
  }
}


/* ═══════════════════════════════════════════════════════════════════
   16. MOBILE CLICK FIX
   ═══════════════════════════════════════════════════════════════════ */

button,
a,
.control-btn,
.primary-btn,
.secondary-btn,
.nav-toggle,
.theme-toggle,
.play-btn,
.game-card-link,
.game-card a,
.difficulty-select,
.sdk-cell,
.sdk-num-btn,
.sdk-tool-btn,
.sdk-diff-tab,
.sdk-game-area .control-btn,
.sdk-game-area .game-controls select,
.sdk-game-area .game-controls button,
.sdk-board-wrap,
.sdk-board,
.sdk-numpad,
.sdk-toolbar {
  pointer-events: auto !important;
  touch-action: manipulation !important;
  -webkit-tap-highlight-color: transparent !important;
  cursor: pointer !important;
}

.nav-overlay {
  pointer-events: none !important;
}

.nav-overlay.is-visible {
  pointer-events: auto !important;
}

.mobile-nav a {
  pointer-events: auto !important;
  touch-action: manipulation !important;
}

.ad-container,
.ad-placeholder,
.adsbygoogle {
  pointer-events: none !important;
}

.ad-container .adsbygoogle {
  pointer-events: auto !important;
}