/* ══════════════════════════════════════════════════════════════════
   GAMES — Memory training, senior-friendly
   Mobile-first responsive (320px → 1440px+)
   Large touch targets, gold gradient consistency
   Sprint AB: unified games CSS + TTS toggle
   ══════════════════════════════════════════════════════════════════ */

/* ─── DESIGN TOKENS ─── */
.memory-games-menu,
.memory-game-play,
.memory-game-recall,
.memory-game-result {
    --game-radius: 16px;
    --game-radius-sm: 10px;
    --game-pad: clamp(14px, 4vw, 24px);
    --game-gap: clamp(10px, 3vw, 18px);
    --game-touch: 56px;            /* WCAG AAA touch target */
    --game-fs-body: clamp(15px, 2.6vw, 18px);
    --game-fs-h: clamp(20px, 4.5vw, 28px);
    --game-fs-xl: clamp(36px, 9vw, 64px);
    --game-success: #16a34a;
    --game-warn: #d97706;
    --game-error: #dc2626;
    --game-primary: var(--radim-primary, #c9a445);
    --game-surface: var(--radim-surface, #fbf7ef);
    --game-text: var(--radim-text, #2c2418);
    --game-muted: #6b6354;
    color: var(--game-text);
    font-size: var(--game-fs-body);
    line-height: 1.5;
}

/* ════════════════════════════════════════════════════════════
   GAMES MENU (4 cards grid + stats summary)
   ════════════════════════════════════════════════════════════ */

.memory-games-menu {
    max-width: 720px;
    margin: 0 auto;
    padding: 4px;
}

.memory-games-menu h3,
.memory-games-menu .games-title {
    font-size: var(--game-fs-h);
    text-align: center;
    margin: 0 0 var(--game-gap);
    color: var(--game-text);
    font-weight: 700;
}

/* ─── TTS TOGGLE BAR ─── */
.games-tts-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    margin-bottom: var(--game-gap);
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--game-primary) 10%, transparent) 0%,
        color-mix(in srgb, var(--game-primary) 4%, transparent) 100%);
    border: 1px solid color-mix(in srgb, var(--game-primary) 30%, transparent);
    border-radius: var(--game-radius);
}

.games-tts-toggle__label {
    font-size: var(--game-fs-body);
    color: var(--game-text);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.games-tts-toggle__label .icon {
    font-size: 1.4em;
}

.games-tts-toggle__switch {
    position: relative;
    width: 56px;
    height: 32px;
    background: #cbcbcb;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    transition: background .25s ease;
    flex-shrink: 0;
}

.games-tts-toggle__switch::before {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 26px;
    height: 26px;
    background: white;
    border-radius: 50%;
    transition: transform .25s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,.2);
}

.games-tts-toggle__switch[aria-pressed="true"] {
    background: var(--game-primary);
}

.games-tts-toggle__switch[aria-pressed="true"]::before {
    transform: translateX(24px);
}

.games-tts-toggle__switch:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--game-primary) 60%, transparent);
    outline-offset: 2px;
}

/* ─── STATS SUMMARY ─── */
.stats-summary {
    background: white;
    border-radius: var(--game-radius);
    padding: 16px;
    margin-bottom: var(--game-gap);
    box-shadow: 0 2px 8px rgba(0,0,0,.05);
}

.stats-summary h4 {
    margin: 0 0 12px;
    font-size: var(--game-fs-body);
    color: var(--game-text);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    text-align: center;
}

.stats-grid .stat-value {
    font-size: clamp(22px, 5vw, 28px);
    font-weight: 700;
    color: var(--game-primary);
}

.stats-grid .stat-label {
    font-size: clamp(11px, 2.5vw, 13px);
    color: var(--game-muted);
}

/* ─── RECOMMENDED ─── */
.recommended-game {
    background: linear-gradient(135deg, #fff8e6, #fff3d4);
    border-left: 4px solid var(--game-primary);
    padding: 12px 14px;
    border-radius: var(--game-radius-sm);
    margin-bottom: var(--game-gap);
    font-size: var(--game-fs-body);
    line-height: 1.5;
}

/* ─── GAMES GRID ─── */
.games-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--game-gap);
    margin-bottom: var(--game-gap);
}

@media (min-width: 600px) {
    .games-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .games-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}

.game-card {
    background: white;
    border: 2px solid color-mix(in srgb, var(--game-primary) 25%, transparent);
    border-radius: var(--game-radius);
    padding: 18px 16px;
    text-align: center;
    cursor: pointer;
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
    min-height: 160px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    font: inherit;
    color: inherit;
}

.game-card:hover,
.game-card:focus-visible {
    border-color: var(--game-primary);
    box-shadow: 0 4px 16px color-mix(in srgb, var(--game-primary) 25%, transparent);
    transform: translateY(-2px);
    outline: none;
}

.game-card:active { transform: translateY(0); }

.game-card.recommended {
    background: linear-gradient(135deg, #fff8e6 0%, white 100%);
    border-color: var(--game-primary);
    border-width: 3px;
    position: relative;
}

.game-card.recommended::before {
    content: "★ Doporučeno";
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--game-primary);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 999px;
}

.game-card .icon {
    font-size: clamp(36px, 8vw, 52px);
    line-height: 1;
    margin-bottom: 8px;
}

.game-card .name {
    font-size: clamp(16px, 3vw, 19px);
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--game-text);
}

.game-card .description {
    font-size: clamp(12px, 2.5vw, 14px);
    color: var(--game-muted);
    margin-bottom: 8px;
}

.game-card .benefit {
    font-size: clamp(11px, 2.3vw, 13px);
    color: var(--game-primary);
    font-weight: 600;
    margin-top: auto;
}

.game-card .game-stats {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #eee;
    font-size: clamp(11px, 2.3vw, 13px);
    color: var(--game-success);
    width: 100%;
}

/* ─── ACTION BUTTONS ROW ─── */
.games-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

@media (min-width: 480px) {
    .games-actions { grid-template-columns: 1fr 1fr; }
}

.games-actions .game-btn,
.memory-game-play .game-btn,
.memory-game-recall .game-btn,
.memory-game-result .game-btn {
    min-height: var(--game-touch);
    padding: 14px 18px;
    border-radius: var(--game-radius-sm);
    font-size: var(--game-fs-body);
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: filter .15s ease, transform .1s ease;
    width: 100%;
}

.game-btn--primary {
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 80%, #b8902f));
    color: white;
}

.game-btn--secondary {
    background: white;
    color: var(--game-text);
    border: 2px solid var(--game-primary);
}

.game-btn--ghost {
    background: transparent;
    color: var(--game-muted);
    border: 1px solid #ddd;
}

.game-btn:hover { filter: brightness(1.05); }
.game-btn:active { transform: scale(.98); }
.game-btn:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--game-primary) 60%, transparent);
    outline-offset: 2px;
}

/* ════════════════════════════════════════════════════════════
   GAME PLAY — words, digits, countdown
   ════════════════════════════════════════════════════════════ */

.memory-game-play,
.memory-game-recall,
.memory-game-result {
    max-width: 640px;
    margin: 0 auto;
}

.memory-game-play h3,
.memory-game-recall h3,
.memory-game-result h3 {
    font-size: var(--game-fs-h);
    text-align: center;
    margin: 0 0 12px;
}

.memory-game-play .instruction,
.memory-game-recall .instruction {
    text-align: center;
    color: var(--game-muted);
    font-size: var(--game-fs-body);
    margin-bottom: var(--game-gap);
}

/* Words display: large, readable, generous spacing */
.memory-words-box {
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 80%, #a8862a));
    color: white;
    padding: clamp(20px, 5vw, 32px);
    border-radius: var(--game-radius);
    text-align: center;
    font-size: clamp(20px, 5vw, 28px);
    font-weight: 600;
    line-height: 1.6;
    letter-spacing: .02em;
    margin: var(--game-gap) 0;
    word-break: break-word;
}

/* Countdown: large display, color shifts as time runs out */
.countdown-display {
    text-align: center;
    font-size: clamp(48px, 12vw, 80px);
    font-weight: 800;
    color: var(--game-primary);
    margin: 12px 0;
    line-height: 1;
    transition: color .3s ease, transform .2s ease;
}

.countdown-display.warning { color: var(--game-warn); }
.countdown-display.critical {
    color: var(--game-error);
    animation: countdown-pulse .5s ease-in-out infinite alternate;
}

@keyframes countdown-pulse {
    from { transform: scale(1); }
    to { transform: scale(1.08); }
}

/* Recall input — big textarea */
.recall-textarea,
.recall-input {
    width: 100%;
    min-height: clamp(100px, 18vh, 140px);
    padding: 14px;
    font-size: var(--game-fs-body);
    border: 2px solid color-mix(in srgb, var(--game-primary) 40%, transparent);
    border-radius: var(--game-radius-sm);
    margin-bottom: 12px;
    box-sizing: border-box;
    font-family: inherit;
    resize: vertical;
    background: white;
}

.recall-input {
    min-height: var(--game-touch);
    text-align: center;
    font-size: clamp(20px, 5vw, 28px);
    font-weight: 600;
    letter-spacing: .15em;
}

.recall-textarea:focus,
.recall-input:focus {
    outline: none;
    border-color: var(--game-primary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--game-primary) 20%, transparent);
}

/* ════════════════════════════════════════════════════════════
   N-BACK GAME — 3x3 grid + match button
   ════════════════════════════════════════════════════════════ */

.nback-board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(6px, 2vw, 12px);
    aspect-ratio: 1 / 1;
    max-width: clamp(260px, 80vw, 380px);
    margin: var(--game-gap) auto;
}

.nback-cell {
    background: #f5f1e8;
    border: 2px solid #e8dec9;
    border-radius: var(--game-radius-sm);
    transition: background .15s ease, transform .1s ease;
}

.nback-cell.active {
    background: var(--game-primary);
    border-color: color-mix(in srgb, var(--game-primary) 80%, #000);
    transform: scale(.95);
    animation: nback-flash .3s ease-out;
}

@keyframes nback-flash {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(.95); }
}

.nback-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    margin-top: var(--game-gap);
}

@media (min-width: 480px) {
    .nback-controls { flex-direction: row; justify-content: center; }
}

.nback-progress {
    text-align: center;
    color: var(--game-muted);
    font-size: clamp(13px, 2.6vw, 15px);
    margin-bottom: 8px;
}

/* ════════════════════════════════════════════════════════════
   PAIR MATCH — flippable cards
   ════════════════════════════════════════════════════════════ */

.pair-board {
    display: grid;
    gap: clamp(6px, 2vw, 12px);
    margin: var(--game-gap) auto;
    max-width: 720px;
    /* Default: 3 cols mobile, 4 cols tablet+ */
    grid-template-columns: repeat(3, 1fr);
}

.pair-board[data-cols="4"] { grid-template-columns: repeat(4, 1fr); }
.pair-board[data-cols="6"] { grid-template-columns: repeat(3, 1fr); }
@media (min-width: 600px) {
    .pair-board[data-cols="6"] { grid-template-columns: repeat(4, 1fr); }
    .pair-board[data-cols="8"] { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 1024px) {
    .pair-board[data-cols="8"] { grid-template-columns: repeat(4, 1fr); }
    .pair-board[data-cols="12"] { grid-template-columns: repeat(6, 1fr); }
}

.pair-card {
    aspect-ratio: 3 / 4;
    perspective: 800px;
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
}

.pair-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform .5s cubic-bezier(.4,0,.2,1);
    transform-style: preserve-3d;
}

.pair-card.flipped .pair-card-inner,
.pair-card.matched .pair-card-inner {
    transform: rotateY(180deg);
}

.pair-card-front,
.pair-card-back {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: var(--game-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(28px, 7vw, 48px);
}

.pair-card-front {
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 75%, #8c6f1f));
    color: white;
    font-size: clamp(24px, 6vw, 36px);
    font-weight: 700;
    box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--game-primary) 90%, #fff);
}

.pair-card-back {
    background: white;
    border: 2px solid var(--game-primary);
    transform: rotateY(180deg);
}

.pair-card.matched .pair-card-back {
    background: color-mix(in srgb, var(--game-success) 15%, white);
    border-color: var(--game-success);
    animation: matched-pulse .5s ease-out;
}

@keyframes matched-pulse {
    0% { transform: rotateY(180deg) scale(1); }
    50% { transform: rotateY(180deg) scale(1.05); }
    100% { transform: rotateY(180deg) scale(1); }
}

.pair-progress {
    text-align: center;
    margin-bottom: 12px;
    font-size: clamp(14px, 2.8vw, 16px);
    color: var(--game-muted);
}

.pair-progress strong { color: var(--game-text); }

/* ════════════════════════════════════════════════════════════
   RESULT SCREEN
   ════════════════════════════════════════════════════════════ */

.result-score-circle {
    width: clamp(120px, 30vw, 160px);
    height: clamp(120px, 30vw, 160px);
    margin: 12px auto;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(36px, 9vw, 56px);
    font-weight: 800;
    color: white;
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 70%, #8c6f1f));
    box-shadow: 0 6px 24px color-mix(in srgb, var(--game-primary) 35%, transparent);
}

.result-score-circle.excellent {
    background: linear-gradient(135deg, var(--game-success), #15803d);
    box-shadow: 0 6px 24px color-mix(in srgb, var(--game-success) 35%, transparent);
}

.result-score-circle.poor {
    background: linear-gradient(135deg, #94928a, #6b6354);
    box-shadow: 0 6px 24px rgba(0,0,0,.2);
}

.result-detail-box {
    background: #faf7f0;
    border-radius: var(--game-radius);
    padding: 16px;
    margin: var(--game-gap) 0;
    line-height: 1.6;
}

.result-detail-box .label {
    font-weight: 600;
    color: var(--game-text);
    display: block;
    margin-bottom: 4px;
}

.result-detail-box .correct { color: var(--game-success); }
.result-detail-box .missed { color: var(--game-error); }

.result-time-box {
    text-align: center;
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 75%, #8c6f1f));
    color: white;
    padding: 12px 16px;
    border-radius: var(--game-radius-sm);
    margin-bottom: var(--game-gap);
    font-size: var(--game-fs-body);
}

/* ════════════════════════════════════════════════════════════
   DIFFICULTY PICKER
   ════════════════════════════════════════════════════════════ */

.difficulty-selector {
    max-width: 480px;
    margin: 0 auto;
}

.difficulty-selector h3 {
    font-size: var(--game-fs-h);
    text-align: center;
    margin: 0 0 var(--game-gap);
}

.difficulty-options {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

@media (min-width: 480px) {
    .difficulty-options { grid-template-columns: repeat(3, 1fr); }
}

.difficulty-option {
    min-height: var(--game-touch);
    padding: 14px 12px;
    border-radius: var(--game-radius-sm);
    background: white;
    border: 2px solid color-mix(in srgb, var(--game-primary) 30%, transparent);
    color: var(--game-text);
    font-size: var(--game-fs-body);
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all .15s ease;
}

.difficulty-option.medium {
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 80%, #8c6f1f));
    color: white;
    border-color: var(--game-primary);
}

.difficulty-option:hover,
.difficulty-option:focus-visible {
    border-color: var(--game-primary);
    transform: translateY(-2px);
    outline: none;
}

/* ════════════════════════════════════════════════════════════
   ACCESSIBILITY: reduced motion
   ════════════════════════════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {
    .game-card, .pair-card-inner, .nback-cell, .countdown-display,
    .pair-card.matched .pair-card-back, .difficulty-option, .game-btn {
        transition: none !important;
        animation: none !important;
    }
    .countdown-display.critical { animation: none; }
}

/* ════════════════════════════════════════════════════════════
   SAFE AREA (iOS notch / Android nav bar)
   ════════════════════════════════════════════════════════════ */

.memory-games-menu,
.memory-game-play,
.memory-game-recall,
.memory-game-result {
    padding-bottom: env(safe-area-inset-bottom, 0);
}

/* ════════════════════════════════════════════════════════════
   SPRINT AB: ADAPTERS FOR exercises-module.js (active system)
   These map the existing class names emitted by exercises-module.js
   onto the games-radim.css design system, so all 6 games (sequence,
   pairs, words, colors, math, categories) get the same look + feel
   on mobile / tablet / desktop without rewriting their JS.
   ════════════════════════════════════════════════════════════ */

/* Token bridge: exercises-module classes get same design tokens */
.memory-games-grid,
.sequence-game,
.pairs-game,
.words-game,
.colors-game,
.math-game,
.category-game,
.game-results {
    --game-radius: 16px;
    --game-radius-sm: 10px;
    --game-pad: clamp(14px, 4vw, 24px);
    --game-gap: clamp(10px, 3vw, 18px);
    --game-touch: 56px;
    --game-fs-body: clamp(15px, 2.6vw, 18px);
    --game-fs-h: clamp(20px, 4.5vw, 28px);
    --game-fs-xl: clamp(36px, 9vw, 64px);
    --game-success: #16a34a;
    --game-warn: #d97706;
    --game-error: #dc2626;
    --game-primary: var(--radim-primary, #c9a445);
    --game-surface: var(--radim-surface, #fbf7ef);
    --game-text: var(--radim-text, #2c2418);
    --game-muted: #6b6354;
    color: var(--game-text);
}

/* ── Memory games card grid (exercises-module showMemoryGamesMenu) ── */
.memory-games-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--game-gap);
    margin: var(--game-gap) 0;
}

@media (min-width: 480px) {
    .memory-games-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .memory-games-grid { grid-template-columns: repeat(3, 1fr); }
}

.memory-game-card {
    background: white;
    border: 2px solid color-mix(in srgb, var(--game-primary) 25%, transparent);
    border-radius: var(--game-radius);
    padding: 18px 14px;
    text-align: center;
    cursor: pointer;
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
    min-height: 140px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font: inherit;
    color: inherit;
}

.memory-game-card:hover,
.memory-game-card:focus-visible {
    border-color: var(--game-primary);
    box-shadow: 0 4px 16px color-mix(in srgb, var(--game-primary) 25%, transparent);
    transform: translateY(-2px);
    outline: none;
}

.memory-game-card:active { transform: translateY(0); }

.memory-game-card .game-icon {
    font-size: clamp(40px, 9vw, 56px);
    line-height: 1;
}

.memory-game-card .game-name {
    font-size: clamp(15px, 3vw, 18px);
    font-weight: 600;
    color: var(--game-text);
}

.memory-game-card .game-desc {
    font-size: clamp(12px, 2.4vw, 14px);
    color: var(--game-muted);
}

/* ── Memory stats footer ── */
.memory-stats {
    background: white;
    border-radius: var(--game-radius);
    padding: 14px 16px;
    margin-top: var(--game-gap);
    box-shadow: 0 2px 8px rgba(0,0,0,.05);
}

.memory-stats h4 {
    margin: 0 0 6px;
    font-size: var(--game-fs-body);
    color: var(--game-text);
}

.memory-stats p {
    margin: 4px 0;
    font-size: clamp(13px, 2.5vw, 15px);
    color: var(--game-muted);
}

/* ── Game-shared layout container ── */
.sequence-game,
.pairs-game,
.words-game,
.colors-game,
.math-game,
.category-game,
.game-results {
    max-width: 640px;
    margin: 0 auto;
    padding: 4px;
}

.sequence-game h3,
.pairs-game h3,
.words-game h3,
.colors-game h3,
.math-game h3,
.category-game h3,
.game-results h3 {
    font-size: var(--game-fs-h);
    text-align: center;
    margin: 0 0 12px;
    color: var(--game-text);
}

.sequence-header { text-align: center; margin-bottom: var(--game-gap); }

.sequence-info,
.pairs-info {
    display: flex;
    justify-content: space-around;
    gap: 12px;
    background: white;
    border-radius: var(--game-radius-sm);
    padding: 10px 14px;
    margin-bottom: var(--game-gap);
    font-size: clamp(13px, 2.6vw, 15px);
    color: var(--game-muted);
    box-shadow: 0 2px 6px rgba(0,0,0,.04);
}

.sequence-info strong,
.pairs-info strong { color: var(--game-text); }

/* ── Sequence display (numbers flash) ── */
.sequence-display {
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 78%, #8c6f1f));
    color: white;
    text-align: center;
    padding: clamp(28px, 8vw, 48px) clamp(16px, 4vw, 32px);
    border-radius: var(--game-radius);
    margin: var(--game-gap) 0;
    min-height: clamp(100px, 22vw, 140px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.sequence-numbers {
    font-size: clamp(36px, 10vw, 64px);
    letter-spacing: .25em;
    font-variant-numeric: tabular-nums;
}

.sequence-instruction {
    font-size: clamp(16px, 3.5vw, 20px);
    font-weight: 500;
    opacity: .92;
}

/* ── Sequence input ── */
.sequence-input {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: stretch;
    margin-bottom: var(--game-gap);
}

.sequence-input.hidden { display: none; }

.sequence-input input {
    flex: 1 1 200px;
    min-height: var(--game-touch);
    padding: 12px 16px;
    border: 2px solid color-mix(in srgb, var(--game-primary) 35%, transparent);
    border-radius: var(--game-radius-sm);
    font-size: clamp(20px, 5vw, 28px);
    text-align: center;
    letter-spacing: .15em;
    font-weight: 600;
    background: white;
}

.sequence-input input:focus {
    outline: none;
    border-color: var(--game-primary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--game-primary) 20%, transparent);
}

/* Buttons inside games (.primary, .secondary, .ghost as used by module) */
.sequence-game .primary,
.sequence-game .secondary,
.sequence-game .ghost,
.pairs-game .primary, .pairs-game .secondary, .pairs-game .ghost,
.words-game .primary, .words-game .secondary, .words-game .ghost,
.colors-game .primary, .colors-game .secondary, .colors-game .ghost,
.math-game .primary, .math-game .secondary, .math-game .ghost,
.category-game .primary, .category-game .secondary, .category-game .ghost,
.game-results .primary, .game-results .secondary, .game-results .ghost,
.sequence-input button {
    min-height: var(--game-touch);
    padding: 12px 18px;
    border-radius: var(--game-radius-sm);
    font-size: var(--game-fs-body);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: filter .15s ease, transform .1s ease;
}

.sequence-game .primary,
.pairs-game .primary, .words-game .primary, .colors-game .primary,
.math-game .primary, .category-game .primary, .game-results .primary,
.sequence-input button {
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 80%, #8c6f1f));
    color: white;
}

.sequence-game .secondary,
.pairs-game .secondary, .words-game .secondary, .colors-game .secondary,
.math-game .secondary, .category-game .secondary, .game-results .secondary {
    background: white;
    color: var(--game-text);
    border: 2px solid var(--game-primary);
}

.sequence-game .ghost,
.pairs-game .ghost, .words-game .ghost, .colors-game .ghost,
.math-game .ghost, .category-game .ghost, .game-results .ghost {
    background: transparent;
    color: var(--game-muted);
    border: 1px solid #ddd;
}

.sequence-game .primary:hover,
.pairs-game .primary:hover, .words-game .primary:hover, .colors-game .primary:hover,
.math-game .primary:hover, .category-game .primary:hover { filter: brightness(1.05); }

.sequence-controls {
    display: flex;
    justify-content: center;
    margin-top: var(--game-gap);
}

/* ── Pairs grid (exercises-module 4×3 = 12 cards) ── */
.pairs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(8px, 2.5vw, 14px);
    max-width: 540px;
    margin: var(--game-gap) auto;
}

@media (min-width: 600px) {
    .pairs-grid { grid-template-columns: repeat(4, 1fr); }
}

.pairs-grid .pair-card {
    aspect-ratio: 3 / 4;
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 75%, #8c6f1f));
    color: white;
    border: none;
    border-radius: var(--game-radius-sm);
    font-size: clamp(28px, 7vw, 44px);
    cursor: pointer;
    transition: background .25s ease, transform .15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px color-mix(in srgb, var(--game-primary) 30%, transparent);
}

.pairs-grid .pair-card:hover { transform: translateY(-2px); }
.pairs-grid .pair-card:active { transform: scale(.96); }

.pairs-grid .pair-card.flipped {
    background: white;
    color: var(--game-text);
    border: 2px solid var(--game-primary);
}

/* ── Words game ── */
.words-display {
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 78%, #8c6f1f));
    color: white;
    padding: clamp(20px, 5vw, 32px);
    border-radius: var(--game-radius);
    margin: var(--game-gap) 0;
    text-align: center;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.word-card {
    background: rgba(255,255,255,.18);
    padding: 8px 16px;
    border-radius: 999px;
    font-size: clamp(16px, 3.5vw, 20px);
    font-weight: 600;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.words-display input.full-width {
    width: 100%;
    background: rgba(255,255,255,.95);
    color: var(--game-text);
    border: none;
    padding: 14px 16px;
    border-radius: var(--game-radius-sm);
    font-size: var(--game-fs-body);
    box-sizing: border-box;
}

.words-display .primary.mt-md {
    margin-top: 12px;
    width: 100%;
}

/* ── Colors game ── */
.colors-display {
    display: flex;
    justify-content: center;
    gap: clamp(8px, 2.5vw, 16px);
    flex-wrap: wrap;
    padding: clamp(20px, 5vw, 32px);
    background: white;
    border-radius: var(--game-radius);
    margin: var(--game-gap) 0;
    min-height: clamp(80px, 18vw, 110px);
    align-items: center;
}

.color-dot {
    width: clamp(48px, 11vw, 72px);
    height: clamp(48px, 11vw, 72px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(28px, 6vw, 40px);
    box-shadow: 0 4px 12px rgba(0,0,0,.15);
    flex-shrink: 0;
}

.colors-input { background: white; border-radius: var(--game-radius); padding: 16px; }
.colors-input.hidden { display: none; }

.colors-input p {
    margin: 0 0 12px;
    font-size: var(--game-fs-body);
    text-align: center;
}

.colors-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 12px;
}

@media (min-width: 480px) { .colors-buttons { grid-template-columns: repeat(6, 1fr); } }

.color-btn {
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 2px 8px rgba(0,0,0,.2);
    cursor: pointer;
    font-size: clamp(20px, 5vw, 28px);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform .1s ease, box-shadow .15s ease;
    min-height: var(--game-touch);
}

.color-btn:hover { transform: scale(1.05); box-shadow: 0 4px 14px rgba(0,0,0,.25); }
.color-btn:active { transform: scale(.95); }

.colors-picked {
    text-align: center;
    font-size: clamp(24px, 6vw, 36px);
    margin-top: 8px;
    letter-spacing: .15em;
    min-height: 1.5em;
}

/* ── Math game ── */
.math-question {
    text-align: center;
    font-size: clamp(40px, 10vw, 64px);
    font-weight: 800;
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 78%, #8c6f1f));
    color: white;
    padding: clamp(28px, 7vw, 48px);
    border-radius: var(--game-radius);
    margin: var(--game-gap) 0;
    font-variant-numeric: tabular-nums;
    letter-spacing: .05em;
}

.math-input {
    display: flex;
    gap: 8px;
    margin: var(--game-gap) 0;
}

.math-field {
    flex: 1;
    min-height: var(--game-touch);
    padding: 12px 16px;
    border: 2px solid color-mix(in srgb, var(--game-primary) 35%, transparent);
    border-radius: var(--game-radius-sm);
    font-size: clamp(28px, 7vw, 40px);
    text-align: center;
    font-weight: 700;
    background: white;
}

.math-field:focus {
    outline: none;
    border-color: var(--game-primary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--game-primary) 20%, transparent);
}

.math-input button {
    min-width: var(--game-touch);
    font-size: clamp(20px, 5vw, 28px);
    padding: 0 20px;
}

.math-score {
    text-align: center;
    color: var(--game-muted);
    font-size: var(--game-fs-body);
    margin-bottom: var(--game-gap);
}

.math-score strong { color: var(--game-text); }

/* ── Categories game ── */
.category-items {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin: var(--game-gap) 0;
}

@media (min-width: 480px) {
    .category-items { grid-template-columns: repeat(4, 1fr); }
}

.category-btn {
    min-height: clamp(64px, 14vw, 88px);
    background: white;
    border: 2px solid color-mix(in srgb, var(--game-primary) 30%, transparent);
    color: var(--game-text);
    border-radius: var(--game-radius-sm);
    padding: 12px;
    font-size: clamp(15px, 3vw, 18px);
    font-weight: 600;
    cursor: pointer;
    transition: all .15s ease;
}

.category-btn:hover,
.category-btn:focus-visible {
    border-color: var(--game-primary);
    background: color-mix(in srgb, var(--game-primary) 8%, white);
    transform: translateY(-1px);
    outline: none;
}

.category-btn:active { transform: scale(.97); }

/* ── Game results screen ── */
.results-score {
    text-align: center;
    background: linear-gradient(135deg, var(--game-primary), color-mix(in srgb, var(--game-primary) 78%, #8c6f1f));
    color: white;
    padding: clamp(24px, 6vw, 40px);
    border-radius: var(--game-radius);
    margin: var(--game-gap) 0;
}

.score-number {
    display: block;
    font-size: clamp(48px, 12vw, 80px);
    font-weight: 800;
    line-height: 1;
}

.score-label {
    display: block;
    font-size: clamp(14px, 3vw, 18px);
    opacity: .9;
    margin-top: 6px;
}

.results-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: var(--game-gap);
}

@media (min-width: 480px) { .results-actions { grid-template-columns: 1fr 1fr; } }

.results-actions button {
    width: 100%;
}

/* utility used by exercises-module */
.text-muted { color: var(--game-muted); }
.mt-md { margin-top: 12px; }
.mt-lg { margin-top: 18px; }
.mt-xl { margin-top: 24px; }

/* hidden helper if module uses it */
.hidden { display: none !important; }