/* ==========================================================
   Brain Gym - Cosmic Neural Theme
   Palette source: Custom palette inspired by neural networks
   Colors: Deep space + Electric violet + Neural green
   ========================================================== */

:root {
    --bg-primary: #080C18;
    --bg-secondary: #0D1225;
    --bg-card: #131A30;
    --bg-card-hover: #1A2340;
    --bg-game: #0A0F1E;

    --accent-primary: #7B61FF;
    --accent-primary-soft: rgba(123, 97, 255, 0.15);
    --accent-primary-glow: rgba(123, 97, 255, 0.4);
    --accent-secondary: #00E59B;
    --accent-secondary-soft: rgba(0, 229, 155, 0.15);
    --accent-warm: #FF5757;
    --accent-warm-soft: rgba(255, 87, 87, 0.15);
    --accent-gold: #FFCE45;
    --accent-gold-soft: rgba(255, 206, 69, 0.15);
    --accent-blue: #4FC3F7;

    --text-primary: #E8ECF4;
    --text-secondary: #6B7A99;
    --text-muted: #3D4A66;

    --border: rgba(123, 97, 255, 0.12);
    --border-hover: rgba(123, 97, 255, 0.3);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3), 0 1px 4px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 40px rgba(123, 97, 255, 0.15);

    --font-display: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overscroll-behavior: none;
}

body {
    font-family: var(--font-display);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    line-height: 1.5;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    overscroll-behavior: none;
}

body.game-active {
    overflow: hidden;
}

/* Neural Background Canvas */
#neuralBg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.5;
}

#app {
    position: relative;
    z-index: 1;
    min-height: 100vh;
}

/* ======================== HEADER ======================== */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(8, 12, 24, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.header-content {
    max-width: 960px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.logo:hover { opacity: 0.85; }

.logo-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.35rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.logo-sub {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.header-stats {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.header-stat-value {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.header-stat-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-reset {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.btn-reset svg {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-reset:hover {
    border-color: var(--accent-warm);
    color: var(--accent-warm);
    background: var(--accent-warm-soft);
}

.btn-reset:hover svg {
    transform: rotate(-45deg);
}

.btn-reset:active svg {
    transform: rotate(-405deg);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ======================== DASHBOARD ======================== */
.dashboard {
    max-width: 960px;
    margin: 0 auto;
    padding: 32px 24px 64px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

/* Game Cards */
.game-card {
    position: relative;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    will-change: transform;
}

.game-card:hover {
    transform: translateY(-6px) scale(1.015);
}

.game-card:active {
    transform: translateY(-3px) scale(0.985);
    transition: transform 0.12s ease-out;
}

.game-card-glow {
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--accent-primary), transparent 40%, transparent 60%, var(--accent-secondary));
    background-size: 200% 200%;
    background-position: 0% 50%;
    opacity: 0;
    transition: opacity 0.4s ease, background-position 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 0;
}

.game-card:hover .game-card-glow {
    opacity: 1;
    background-position: 100% 50%;
}

/* Press-feedback ring that expands from center on click */
.game-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    pointer-events: none;
    box-shadow: 0 0 0 0 var(--accent-primary-glow);
    opacity: 0;
    z-index: 2;
}

.game-card:active::after {
    animation: pressRipple 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
}

@keyframes pressRipple {
    0%   { opacity: 0.7; box-shadow: 0 0 0 0 var(--accent-primary-glow); }
    100% { opacity: 0;   box-shadow: 0 0 0 18px transparent; }
}

.game-card-inner {
    position: relative;
    z-index: 1;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    border: 1px solid var(--border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 260px;
}

.game-card:hover .game-card-inner {
    border-color: transparent;
    background: var(--bg-card-hover);
}

.game-card-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 4px;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.game-card:hover .game-card-icon {
    transform: scale(1.08) rotate(-3deg);
}

.game-card-icon svg {
    width: 100%;
    height: 100%;
}

.game-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.game-card-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    flex: 1;
}

.game-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
}

.game-card-tag {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 4px 10px;
    border-radius: 20px;
    background: var(--accent-primary-soft);
    color: var(--accent-primary);
}

.game-card-tag.tag-attention {
    background: var(--accent-warm-soft);
    color: var(--accent-warm);
}

.game-card-tag.tag-speed {
    background: var(--accent-gold-soft);
    color: var(--accent-gold);
}

.game-card-tag.tag-visual {
    background: var(--accent-secondary-soft);
    color: var(--accent-secondary);
}

.game-card-tag.tag-reaction {
    background: rgba(79, 195, 247, 0.15);
    color: var(--accent-blue);
}

.game-card-tag.tag-spatial {
    background: rgba(255, 159, 67, 0.15);
    color: #FF9F43;
}

.game-card-tag.tag-working {
    background: rgba(200, 120, 255, 0.15);
    color: #C878FF;
}

.game-card-tag.tag-lang {
    background: rgba(79, 195, 247, 0.15);
    color: var(--accent-blue);
}

.game-card-tag.tag-logic {
    background: rgba(255, 159, 67, 0.15);
    color: #FF9F43;
}

.game-card-tag.tag-perception {
    background: rgba(255, 105, 180, 0.15);
    color: #FF69B4;
}

.game-card-tag.tag-sequential {
    background: rgba(64, 224, 208, 0.15);
    color: #40E0D0;
}

.game-card-tag.tag-planning {
    background: rgba(183, 148, 246, 0.15);
    color: #B794F6;
}

.game-card-tag.tag-dual {
    background: rgba(236, 72, 153, 0.15);
    color: #EC4899;
}

.game-card-tag.tag-inhibition {
    background: rgba(255, 159, 67, 0.15);
    color: #FF9F43;
}

.game-card-tag.tag-knowledge {
    background: rgba(79, 195, 247, 0.15);
    color: var(--accent-blue);
}

.game-card-best {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.game-card-play {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px;
    background: var(--accent-primary-soft);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    margin-top: 8px;
    overflow: hidden;
}

.game-card-play svg {
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.game-card:hover .game-card-play {
    background: var(--accent-primary);
    color: white;
}

.game-card:hover .game-card-play svg {
    transform: translateX(4px);
}

/* ======================== STATS SECTION ======================== */
.stats-section {
    padding-top: 16px;
}

.stats-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(105deg, transparent, rgba(123, 97, 255, 0.08), transparent);
    pointer-events: none;
}

.stat-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.stat-card:hover::before {
    animation: statShine 0.7s ease-out;
}

@keyframes statShine {
    from { left: -100%; }
    to   { left: 160%; }
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon.memory-color {
    background: var(--accent-primary-soft);
    color: var(--accent-primary);
}

.stat-icon.attention-color {
    background: var(--accent-warm-soft);
    color: var(--accent-warm);
}

.stat-icon.speed-color {
    background: var(--accent-gold-soft);
    color: var(--accent-gold);
}

.stat-icon.visual-color {
    background: var(--accent-secondary-soft);
    color: var(--accent-secondary);
}

.stat-icon.reaction-color {
    background: rgba(79, 195, 247, 0.15);
    color: var(--accent-blue);
}

.stat-icon.spatial-color {
    background: rgba(255, 159, 67, 0.15);
    color: #FF9F43;
}

.stat-icon.working-color {
    background: rgba(200, 120, 255, 0.15);
    color: #C878FF;
}

.stat-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

/* ======================== GAME CONTAINER ======================== */
.game-container {
    max-width: 640px;
    margin: 0 auto;
    padding: 24px;
    height: calc(100vh - 73px);
    height: calc(100dvh - 73px);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

.game-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    gap: 16px;
}

.btn-back {
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-back:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: var(--accent-primary-soft);
}

.game-info {
    flex: 1;
    text-align: center;
}

.game-title {
    font-size: 1.2rem;
    font-weight: 700;
}

.game-score-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    flex-shrink: 0;
    min-width: 70px;
}

.game-score-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.game-score-value {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-secondary);
}

.game-area {
    width: 100%;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-bottom: 24px;
}

/* Ensure all direct game-area children take proper width */
.game-area > * {
    width: 100%;
    max-width: 440px;
}

/* Start buttons should not stretch full width */
.game-area > .simon-start-btn {
    width: auto;
    min-width: 200px;
}

/* ======================== SIMON SAYS GAME ======================== */
.simon-board {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    width: 300px;
    height: 300px;
    margin: 0 auto 24px;
}

.simon-btn {
    border-radius: var(--radius-lg);
    border: 3px solid rgba(255,255,255,0.1);
    cursor: pointer;
    transition: all 0.15s ease;
    position: relative;
    overflow: hidden;
}

.simon-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: white;
    opacity: 0;
    border-radius: inherit;
    transition: opacity 0.15s ease;
}

/* Sequence flash - VERY visible */
.simon-btn.active {
    transform: scale(1.08);
    z-index: 10;
    border-color: white;
}

.simon-btn.active::after {
    opacity: 0.6;
}

.simon-btn[data-color="red"].active {
    box-shadow: 0 0 40px 15px rgba(255, 87, 87, 0.8), 0 0 80px 30px rgba(255, 87, 87, 0.4), inset 0 0 30px rgba(255,255,255,0.3);
}

.simon-btn[data-color="blue"].active {
    box-shadow: 0 0 40px 15px rgba(79, 195, 247, 0.8), 0 0 80px 30px rgba(79, 195, 247, 0.4), inset 0 0 30px rgba(255,255,255,0.3);
}

.simon-btn[data-color="yellow"].active {
    box-shadow: 0 0 40px 15px rgba(255, 206, 69, 0.8), 0 0 80px 30px rgba(255, 206, 69, 0.4), inset 0 0 30px rgba(255,255,255,0.3);
}

.simon-btn[data-color="green"].active {
    box-shadow: 0 0 40px 15px rgba(0, 229, 155, 0.8), 0 0 80px 30px rgba(0, 229, 155, 0.4), inset 0 0 30px rgba(255,255,255,0.3);
}

/* Player tap flash */
.simon-btn.player-active {
    transform: scale(1.05);
    border-color: rgba(255,255,255,0.5);
}

.simon-btn.player-active::after {
    opacity: 0.35;
}

.simon-btn.disabled {
    cursor: not-allowed;
    opacity: 0.4;
}

/* Dimmed state during sequence playback */
.simon-btn.dimmed {
    opacity: 0.25;
    filter: brightness(0.4);
}

.simon-btn[data-color="red"] { background: #FF5757; }
.simon-btn[data-color="blue"] { background: #4FC3F7; }
.simon-btn[data-color="yellow"] { background: #FFCE45; }
.simon-btn[data-color="green"] { background: #00E59B; }

.simon-status {
    text-align: center;
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    min-height: 32px;
}

.simon-level {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent-primary);
    margin-bottom: 16px;
}

.simon-start-btn {
    display: block;
    margin: 20px auto 0;
    padding: 12px 40px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.simon-start-btn:hover {
    background: #6B4FE8;
    transform: scale(1.03);
}

/* ======================== DIFFICULTY SELECTOR ======================== */
.difficulty-select {
    text-align: center;
    margin-bottom: 24px;
    width: 100%;
    max-width: 400px;
    padding: 20px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.difficulty-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 14px;
    font-weight: 600;
}

.diff-options {
    display: flex;
    justify-content: center;
    gap: 8px;
    width: 100%;
}

.diff-btn {
    padding: 10px 22px;
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    flex: 1;
    min-width: 0;
    max-width: 120px;
}

.diff-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: var(--accent-primary-soft);
}

.diff-btn.selected {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    box-shadow: 0 0 16px rgba(123, 97, 255, 0.3);
}

.diff-btn.diff-easy.selected {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
    box-shadow: 0 0 16px rgba(0, 229, 155, 0.3);
}

.diff-btn.diff-hard.selected {
    background: var(--accent-warm);
    border-color: var(--accent-warm);
    box-shadow: 0 0 16px rgba(255, 87, 87, 0.3);
}

.diff-description {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 12px;
    min-height: 18px;
    transition: var(--transition);
    line-height: 1.4;
}

/* ======================== STROOP GAME ======================== */
.stroop-display {
    text-align: center;
    margin-bottom: 32px;
}

.stroop-word {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: 2px;
    transition: transform 0.2s ease;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stroop-word.correct-flash {
    animation: correctPulse 0.3s ease;
}

.stroop-word.wrong-flash {
    animation: wrongShake 0.4s ease;
}

@keyframes correctPulse {
    0%   { transform: scale(1);    box-shadow: 0 0 0 0 var(--accent-secondary-soft); }
    50%  { transform: scale(1.12); box-shadow: 0 0 0 14px rgba(0, 229, 155, 0); }
    100% { transform: scale(1);    box-shadow: 0 0 0 0 rgba(0, 229, 155, 0); }
}

@keyframes wrongShake {
    0%, 100% { transform: translateX(0) rotate(0deg); }
    20%      { transform: translateX(-8px) rotate(-2deg); }
    40%      { transform: translateX(7px) rotate(2deg); }
    60%      { transform: translateX(-5px) rotate(-1.5deg); }
    80%      { transform: translateX(4px) rotate(1deg); }
}

.stroop-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    max-width: 400px;
    margin: 0 auto;
}

.stroop-option {
    padding: 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stroop-option:hover {
    border-color: var(--accent-primary);
    background: var(--accent-primary-soft);
}

.stroop-option.correct {
    border-color: var(--accent-secondary);
    background: var(--accent-secondary-soft);
}

.stroop-option.wrong {
    border-color: var(--accent-warm);
    background: var(--accent-warm-soft);
}

.stroop-timer-bar {
    width: 100%;
    max-width: 400px;
    height: 6px;
    background: var(--bg-card);
    border-radius: 3px;
    margin: 0 auto 24px;
    overflow: hidden;
}

.stroop-timer-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 3px;
    transition: width 0.1s linear;
}

.stroop-stats-bar {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 20px;
}

.stroop-stat-item {
    text-align: center;
}

.stroop-stat-num {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
}

.stroop-stat-num.correct-color { color: var(--accent-secondary); }
.stroop-stat-num.wrong-color { color: var(--accent-warm); }

.stroop-stat-txt {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* ======================== MATH SPRINT GAME ======================== */
.math-display {
    text-align: center;
    margin-bottom: 24px;
}

.math-problem {
    font-family: var(--font-mono);
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.math-input-area {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
}

.math-input {
    width: 160px;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    outline: none;
    transition: var(--transition);
}

.math-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px var(--accent-primary-soft);
}

.math-input.correct {
    border-color: var(--accent-secondary);
    box-shadow: 0 0 0 4px var(--accent-secondary-soft);
}

.math-input.wrong {
    border-color: var(--accent-warm);
    box-shadow: 0 0 0 4px var(--accent-warm-soft);
}

.math-submit {
    padding: 14px 24px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.math-submit:hover {
    background: #6B4FE8;
}

.math-keypad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    max-width: 280px;
    margin: 0 auto;
}

.math-key {
    padding: 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    -webkit-user-select: none;
    user-select: none;
}

.math-key:hover, .math-key:active {
    background: var(--accent-primary-soft);
    border-color: var(--accent-primary);
}

.math-key.key-enter {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.math-key.key-enter:hover {
    background: #6B4FE8;
}

.math-key.key-delete {
    color: var(--accent-warm);
}

.math-difficulty {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 12px;
}

.math-diff-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: var(--transition);
}

.math-diff-dot.active {
    background: var(--accent-gold);
    box-shadow: 0 0 8px var(--accent-gold-soft);
}

/* ======================== MEMORY CARDS GAME ======================== */
.memory-board {
    display: grid;
    gap: 10px;
    width: 100%;
    max-width: 440px;
    margin: 0 auto 24px;
}

.memory-board.grid-4x3 { grid-template-columns: repeat(4, 1fr); }
.memory-board.grid-4x4 { grid-template-columns: repeat(4, 1fr); }
.memory-board.grid-5x4 { grid-template-columns: repeat(5, 1fr); }

.memory-card {
    aspect-ratio: 3/4;
    perspective: 600px;
    cursor: pointer;
}

.memory-card-inner {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-md);
}

.memory-card.flipped .memory-card-inner {
    transform: rotateY(180deg);
}

.memory-card.matched .memory-card-inner {
    transform: rotateY(180deg);
}

.memory-card.matched {
    animation: matchPop 0.4s ease;
}

@keyframes matchPop {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

.memory-card-face {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.memory-card-back {
    background: linear-gradient(135deg, var(--accent-primary), #5B3FD4);
    border: 2px solid var(--accent-primary-soft);
}

.memory-card-back svg {
    width: 28px;
    height: 28px;
    opacity: 0.4;
}

.memory-card-front {
    background: var(--bg-card);
    border: 2px solid var(--border);
    transform: rotateY(180deg);
    font-size: 2rem;
}

.memory-card.matched .memory-card-front {
    border-color: var(--accent-secondary);
    background: var(--accent-secondary-soft);
}

.memory-stats-bar {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 20px;
}

.memory-stat-item {
    text-align: center;
}

.memory-stat-num {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.memory-stat-txt {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* ======================== REFLEX TAP GAME ======================== */
.reflex-arena {
    position: relative;
    width: 100%;
    height: 300px;
    background: var(--bg-secondary);
    border: 2px solid rgba(123, 97, 255, 0.2);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 16px;
}

.reflex-target {
    position: absolute;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: targetPop 0.15s ease-out;
}

@keyframes targetPop {
    0% { transform: scale(0); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.reflex-target:active {
    transform: scale(0.85);
}

.reflex-target.target-go {
    background: radial-gradient(circle at 35% 35%, #66FFD0, var(--accent-secondary), #009966);
    box-shadow: 0 0 24px rgba(0, 229, 155, 0.6), 0 0 48px rgba(0, 229, 155, 0.3);
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.reflex-target.target-trap {
    background: radial-gradient(circle at 35% 35%, #FF9999, var(--accent-warm), #CC3333);
    box-shadow: 0 0 24px rgba(255, 87, 87, 0.6), 0 0 48px rgba(255, 87, 87, 0.3);
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.reflex-msg {
    text-align: center;
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    min-height: 28px;
}

.reflex-time-flash {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-secondary);
    pointer-events: none;
    animation: flashUp 0.8s ease forwards;
}

@keyframes flashUp {
    0% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    100% { opacity: 0; transform: translate(-50%, -80%) scale(1.2); }
}

/* ======================== PATTERN MATCH GAME ======================== */
.pattern-grid {
    display: grid;
    gap: 6px;
    width: 100%;
    max-width: 300px;
    margin: 0 auto 20px;
}

.pattern-grid.grid-4 { grid-template-columns: repeat(4, 1fr); }
.pattern-grid.grid-5 { grid-template-columns: repeat(5, 1fr); }
.pattern-grid.grid-6 { grid-template-columns: repeat(6, 1fr); }

.pattern-cell {
    aspect-ratio: 1;
    min-height: 0;
    background: var(--bg-card-hover);
    border: 2px solid rgba(123, 97, 255, 0.25);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

/* Fallback for browsers that don't support aspect-ratio */
@supports not (aspect-ratio: 1) {
    .pattern-cell {
        padding-bottom: 100%;
        height: 0;
    }
}

.pattern-cell:hover {
    border-color: rgba(123, 97, 255, 0.5);
}

.pattern-cell.lit {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 12px rgba(123, 97, 255, 0.5);
}

.pattern-cell.selected {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
    box-shadow: 0 0 12px rgba(0, 229, 155, 0.4);
}

.pattern-cell.correct {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
}

.pattern-cell.wrong {
    background: var(--accent-warm);
    border-color: var(--accent-warm);
}

.pattern-msg {
    text-align: center;
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    min-height: 28px;
    margin-bottom: 12px;
}

.pattern-submit-row {
    text-align: center;
}

/* ======================== N-BACK GAME ======================== */
.nback-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 6px;
    width: 200px;
    height: 200px;
    margin: 0 auto 24px;
}

.nback-cell {
    background: var(--bg-card-hover);
    border: 2px solid rgba(123, 97, 255, 0.25);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.nback-cell.lit {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 16px rgba(123, 97, 255, 0.6);
}

.nback-controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 16px;
}

.nback-btn {
    padding: 16px 32px;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid;
    min-width: 130px;
}

.nback-btn.btn-match {
    background: var(--accent-secondary-soft);
    border-color: var(--accent-secondary);
    color: var(--accent-secondary);
}

.nback-btn.btn-match:active,
.nback-btn.btn-match.flash-correct {
    background: var(--accent-secondary);
    color: white;
}

.nback-btn.btn-no {
    background: var(--accent-warm-soft);
    border-color: var(--accent-warm);
    color: var(--accent-warm);
}

.nback-btn.btn-no:active,
.nback-btn.btn-no.flash-correct {
    background: var(--accent-warm);
    color: white;
}

.nback-btn.flash-wrong {
    opacity: 0.4;
}

.nback-progress {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-bottom: 16px;
}

.nback-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: var(--transition);
}

.nback-dot.done { background: var(--accent-secondary); }
.nback-dot.active { background: var(--accent-primary); transform: scale(1.3); }
.nback-dot.wrong-dot { background: var(--accent-warm); }

.nback-info {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-height: 24px;
}

/* ======================== WORD SCRAMBLE GAME ======================== */
.word-answer {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-bottom: 20px;
    min-height: 52px;
    flex-wrap: wrap;
}

.word-slot {
    width: 40px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 3px solid var(--border);
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.word-slot.filled { border-color: var(--accent-primary); }
.word-slot.correct { border-color: var(--accent-secondary); color: var(--accent-secondary); }
.word-slot.wrong { border-color: var(--accent-warm); color: var(--accent-warm); }

.word-scrambled {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.word-letter {
    width: 44px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.word-letter:active { transform: scale(0.9); }
.word-letter.used { opacity: 0.2; pointer-events: none; }

.word-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.word-action-btn {
    padding: 10px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.word-action-btn:hover { border-color: var(--accent-primary); color: var(--accent-primary); }
.word-action-btn.word-skip:hover { border-color: var(--accent-warm); color: var(--accent-warm); }

/* ======================== COLOR SORT GAME ======================== */
.color-msg {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    min-height: 24px;
}

.color-tubes {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.color-tube {
    width: 44px;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 4px;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
}

.color-tube.selected {
    border-color: var(--accent-primary);
    background: var(--accent-primary-soft);
    transform: translateY(-8px);
}

.color-tube-inner {
    display: flex;
    flex-direction: column-reverse;
    gap: 3px;
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    border-top: none;
    padding: 3px;
    min-height: 140px;
}

.color-segment {
    height: 28px;
    border-radius: 3px;
    transition: all 0.2s ease;
}

.color-segment.filled {
    box-shadow: inset 0 -3px 6px rgba(0,0,0,0.2), inset 0 2px 4px rgba(255,255,255,0.15);
}

/* ======================== NUMBER CHAIN GAME ======================== */
.chain-arena {
    position: relative;
    width: 100%;
    height: 300px;
    background: var(--bg-secondary);
    border: 2px solid rgba(123, 97, 255, 0.2);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 12px;
}

.chain-next {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.chain-next span {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--accent-primary);
    font-size: 1.1rem;
}

.chain-node {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid rgba(123, 97, 255, 0.3);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.chain-node:active { transform: scale(0.85); }
.chain-node.done {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
    color: white;
    pointer-events: none;
}
.chain-node.chain-wrong {
    background: var(--accent-warm);
    border-color: var(--accent-warm);
    color: white;
}

/* ======================== SPEED MATCH GAME ======================== */
.speed-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    margin-bottom: 16px;
}

.speed-prev {
    font-size: 2rem;
    color: var(--text-muted);
    min-height: 48px;
    display: flex;
    align-items: center;
}

.speed-arrow {
    font-size: 1.2rem;
    color: var(--text-muted);
}

.speed-current {
    font-size: 3.5rem;
    min-height: 72px;
    display: flex;
    align-items: center;
    transition: all 0.15s ease;
}

.speed-current.speed-correct { color: var(--accent-secondary); }
.speed-current.speed-wrong { color: var(--accent-warm); }

.speed-hint {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* ======================== ODD ONE OUT GAME ======================== */
.odd-grid {
    display: grid;
    gap: 8px;
    max-width: 300px;
    margin: 0 auto 16px;
}

.odd-grid.grid-3 { grid-template-columns: repeat(3, 1fr); }
.odd-grid.grid-4 { grid-template-columns: repeat(4, 1fr); }
.odd-grid.grid-5 { grid-template-columns: repeat(5, 1fr); }

.odd-cell {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.odd-grid.grid-4 .odd-cell { font-size: 1.5rem; }
.odd-grid.grid-5 .odd-cell { font-size: 1.2rem; }

.odd-cell:active { transform: scale(0.9); }
.odd-cell.odd-found {
    background: var(--accent-secondary-soft);
    border-color: var(--accent-secondary);
}
.odd-cell.odd-miss {
    background: var(--accent-warm-soft);
    border-color: var(--accent-warm);
}

/* ======================== BRAIN COACH ======================== */
.coach-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-top: 8px;
}

.coach-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.coach-avatar {
    width: 48px;
    height: 48px;
    background: var(--accent-primary-soft);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.coach-label {
    font-size: 1.1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.coach-sublabel {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.coach-message {
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 20px;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--accent-primary);
}

.coach-section-title {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

/* Cognitive map bars */
.coach-areas {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.coach-area-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.coach-area-icon {
    width: 22px;
    text-align: center;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.coach-area-name {
    font-size: 0.75rem;
    color: var(--text-secondary);
    width: 72px;
    flex-shrink: 0;
}

.coach-area-bar {
    flex: 1;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.coach-area-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.coach-area-fill.bar-empty { background: var(--text-muted); }
.coach-area-fill.bar-weak { background: var(--accent-warm); }
.coach-area-fill.bar-ok { background: var(--accent-gold); }
.coach-area-fill.bar-strong { background: var(--accent-secondary); }

.coach-area-val {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    width: 24px;
    text-align: right;
    flex-shrink: 0;
}

/* Routine list */
.coach-routine-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-primary);
    text-align: center;
    margin-bottom: 12px;
}

.coach-routine-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.coach-routine-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    font-family: var(--font-display);
    color: var(--text-primary);
    width: 100%;
}

.coach-routine-item:hover, .coach-routine-item:active {
    border-color: var(--accent-primary);
    background: var(--accent-primary-soft);
}

.coach-routine-item.priority-high {
    border-left: 3px solid var(--accent-warm);
}

.coach-routine-item.priority-med {
    border-left: 3px solid var(--accent-gold);
}

.coach-routine-num {
    width: 24px;
    height: 24px;
    background: var(--accent-primary-soft);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.coach-routine-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.coach-routine-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.coach-routine-game {
    font-size: 0.88rem;
    font-weight: 600;
}

.coach-routine-reason {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.coach-routine-arrow {
    color: var(--text-muted);
    flex-shrink: 0;
}

/* ======================== RESULT MODAL ======================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(8, 12, 24, 0.85);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    animation: modalBackdropIn 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalBackdropIn {
    from { opacity: 0; backdrop-filter: blur(0px); background: rgba(8, 12, 24, 0); }
    to   { opacity: 1; backdrop-filter: blur(12px); background: rgba(8, 12, 24, 0.85); }
}

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

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    text-align: center;
    max-width: 380px;
    width: 100%;
    animation: modalSlideUp 0.55s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: var(--shadow-glow);
}

@keyframes modalSlideUp {
    0%   { opacity: 0; transform: translateY(40px) scale(0.88); }
    60%  { opacity: 1; transform: translateY(-6px) scale(1.02); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    animation: modalIconIn 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) 0.15s both;
}

@keyframes modalIconIn {
    from { transform: scale(0) rotate(-180deg); opacity: 0; }
    to   { transform: scale(1) rotate(0deg);    opacity: 1; }
}

.modal-icon.icon-great {
    background: var(--accent-secondary-soft);
}

.modal-icon.icon-good {
    background: var(--accent-primary-soft);
}

.modal-icon.icon-try {
    background: var(--accent-gold-soft);
}

.modal-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.modal-score {
    font-family: var(--font-mono);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--accent-secondary);
    margin-bottom: 16px;
}

.modal-details {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
    line-height: 1.8;
}

.modal-actions {
    display: flex;
    gap: 12px;
}

.btn-primary {
    flex: 1;
    padding: 14px 20px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    background: #6B4FE8;
    transform: translateY(-1px);
}

.btn-secondary {
    flex: 1;
    padding: 14px 20px;
    background: none;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* ======================== UTILITIES ======================== */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

/* ======================== VIEW & STAGGERED ANIMATIONS (v1.5.0) ======================== */

/* Dashboard view fade-scale entry */
.dashboard:not(.hidden) {
    animation: viewEntry 0.42s cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* Game view entry transition */
.game-container:not(.hidden) {
    animation: viewEntry 0.42s cubic-bezier(0.22, 0.61, 0.36, 1);
}

@keyframes viewEntry {
    from { opacity: 0; transform: scale(0.98); }
    to   { opacity: 1; transform: scale(1); }
}

/* Staggered game-card entry on dashboard load (nth-child delays) */
.dashboard-grid .game-card {
    animation: cardEntry 0.5s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

.dashboard-grid .game-card:nth-child(1)  { animation-delay: 0ms; }
.dashboard-grid .game-card:nth-child(2)  { animation-delay: 40ms; }
.dashboard-grid .game-card:nth-child(3)  { animation-delay: 80ms; }
.dashboard-grid .game-card:nth-child(4)  { animation-delay: 120ms; }
.dashboard-grid .game-card:nth-child(5)  { animation-delay: 160ms; }
.dashboard-grid .game-card:nth-child(6)  { animation-delay: 200ms; }
.dashboard-grid .game-card:nth-child(7)  { animation-delay: 240ms; }
.dashboard-grid .game-card:nth-child(8)  { animation-delay: 280ms; }
.dashboard-grid .game-card:nth-child(9)  { animation-delay: 320ms; }
.dashboard-grid .game-card:nth-child(10) { animation-delay: 360ms; }
.dashboard-grid .game-card:nth-child(11) { animation-delay: 400ms; }
.dashboard-grid .game-card:nth-child(12) { animation-delay: 440ms; }

@keyframes cardEntry {
    from { opacity: 0; transform: translateY(16px) scale(0.96); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Shimmer pass over coach-area-fill while it draws */
.coach-area-fill {
    position: relative;
    overflow: hidden;
}

.coach-area-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: -40%;
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    animation: barShimmer 1.2s cubic-bezier(0.4, 0, 0.2, 1) 0.6s 1;
}

@keyframes barShimmer {
    from { left: -40%; }
    to   { left: 140%; }
}

/* Staggered entry for coach routine items */
.coach-routine-list .coach-routine-item {
    animation: routineEntry 0.45s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

.coach-routine-list .coach-routine-item:nth-child(1) { animation-delay: 60ms; }
.coach-routine-list .coach-routine-item:nth-child(2) { animation-delay: 140ms; }
.coach-routine-list .coach-routine-item:nth-child(3) { animation-delay: 220ms; }
.coach-routine-list .coach-routine-item:nth-child(4) { animation-delay: 300ms; }
.coach-routine-list .coach-routine-item:nth-child(5) { animation-delay: 380ms; }

@keyframes routineEntry {
    from { opacity: 0; transform: translateX(-14px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ======================== EXIT CONFIRMATION MODAL (v1.5.0) ======================== */
.confirm-modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 32px 28px;
    text-align: center;
    max-width: 360px;
    width: 100%;
    box-shadow: var(--shadow-glow);
    animation: modalSlideUp 0.55s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.confirm-modal-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    border-radius: 50%;
    background: var(--accent-gold-soft);
    color: var(--accent-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    animation: modalIconIn 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) 0.15s both;
}

.confirm-modal-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.confirm-modal-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 22px;
}

.confirm-modal-actions {
    display: flex;
    gap: 10px;
    flex-direction: column;
}

.btn-danger {
    background: var(--accent-warm);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-danger:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
}

.btn-ghost {
    background: none;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-ghost:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

/* ======================== REDUCED MOTION (accessibility) ======================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.12s !important;
        scroll-behavior: auto !important;
    }

    /* Disable decorative/entrance animations entirely */
    .dashboard:not(.hidden),
    .game-container:not(.hidden),
    .dashboard-grid .game-card,
    .coach-routine-list .coach-routine-item,
    .coach-area-fill::after,
    .stat-card::before,
    .modal-overlay,
    .modal-content,
    .modal-icon,
    .confirm-modal-content,
    .confirm-modal-icon,
    .digit-key-submit.digit-submit-ready,
    .hanoi-restart-btn.hanoi-restart-confirm,
    .session-header-val.session-time-warn {
        animation: none !important;
    }

    /* Disable hover transforms that could trigger vestibular discomfort */
    .game-card:hover,
    .game-card:hover .game-card-icon,
    .stat-card:hover,
    .game-card:hover .game-card-play svg,
    .btn-reset:hover svg,
    .btn-reset:active svg {
        transform: none !important;
    }

    /* Neural background still draws but without animated motion */
    #neuralBg {
        opacity: 0.5;
    }
}

/* ======================== DIGIT SPAN GAME ======================== */
.digit-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 18px;
}

.digit-header-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 12px;
    text-align: center;
}

.digit-header-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.digit-header-value {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.digit-stage {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 16px;
    margin-bottom: 20px;
    text-align: center;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
}

.digit-display {
    font-family: var(--font-mono);
    font-size: 4.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    line-height: 1;
    min-height: 5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.digit-display.digit-waiting {
    color: var(--text-muted);
    font-size: 2.8rem;
    opacity: 0.5;
}

.digit-display.digit-flash {
    animation: digitFlash 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.digit-display.digit-flash-correct {
    color: var(--accent-secondary);
    animation: digitPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.digit-display.digit-flash-wrong {
    color: var(--accent-warm);
    animation: digitShake 0.4s ease;
}

@keyframes digitFlash {
    0%   { transform: scale(0.6); opacity: 0; }
    30%  { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(1);   opacity: 1; }
}

@keyframes digitPop {
    0%, 100% { transform: scale(1); }
    50%      { transform: scale(1.2); }
}

@keyframes digitShake {
    0%, 100% { transform: translateX(0); }
    25%      { transform: translateX(-10px); }
    75%      { transform: translateX(10px); }
}

.digit-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-height: 1.2rem;
}

.digit-input-area {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 14px;
}

.digit-user-input {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 10px;
    margin-bottom: 14px;
    min-height: 56px;
    letter-spacing: 0.2em;
    transition: var(--transition);
}

.digit-user-input.digit-input-correct {
    color: var(--accent-secondary);
    border-color: var(--accent-secondary);
    background: var(--accent-secondary-soft);
}

.digit-user-input.digit-input-wrong {
    color: var(--accent-warm);
    border-color: var(--accent-warm);
    background: var(--accent-warm-soft);
}

.digit-keypad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.digit-key {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px 0;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.digit-key:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.digit-key:active {
    transform: scale(0.94);
    background: var(--accent-primary-soft);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.digit-key:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.digit-key-clear {
    color: var(--accent-warm);
    font-size: 1.2rem;
}

.digit-key-clear:hover {
    border-color: var(--accent-warm);
    background: var(--accent-warm-soft);
}

.digit-key-submit {
    color: var(--accent-secondary);
    font-size: 1.3rem;
    font-weight: 700;
}

.digit-key-submit:hover:not(:disabled) {
    border-color: var(--accent-secondary);
    background: var(--accent-secondary-soft);
}

.digit-key-submit.digit-submit-ready {
    background: var(--accent-secondary);
    color: white;
    border-color: var(--accent-secondary);
    animation: digitReady 1.4s ease-in-out infinite;
}

@keyframes digitReady {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 229, 155, 0.4); }
    50%      { box-shadow: 0 0 0 8px rgba(0, 229, 155, 0); }
}

/* ======================== TOWER OF HANOI GAME ======================== */
.hanoi-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px;
}

.hanoi-stat {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 12px;
    text-align: center;
}

.hanoi-stat-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.hanoi-stat-value {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.hanoi-stat-value.hanoi-optimal {
    color: var(--accent-secondary);
}

.hanoi-board {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px 12px 12px;
    margin-bottom: 14px;
    min-height: 260px;
}

.hanoi-peg {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    min-height: 220px;
    cursor: pointer;
    border-radius: var(--radius-md);
    padding: 8px 4px 0;
    transition: background 0.2s ease;
}

.hanoi-peg:hover {
    background: rgba(123, 97, 255, 0.05);
}

.hanoi-peg.hanoi-peg-selected {
    background: var(--accent-primary-soft);
}

.hanoi-peg.hanoi-peg-shake {
    animation: hanoiPegShake 0.35s ease;
}

@keyframes hanoiPegShake {
    0%, 100% { transform: translateX(0); }
    25%      { transform: translateX(-6px); }
    75%      { transform: translateX(6px); }
}

.hanoi-peg-rod {
    position: absolute;
    top: 12px;
    bottom: 26px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    background: linear-gradient(180deg, var(--text-muted), var(--border));
    border-radius: 3px;
    z-index: 0;
}

.hanoi-peg-discs {
    display: flex;
    flex-direction: column-reverse;
    align-items: center;
    justify-content: flex-start;
    gap: 3px;
    position: relative;
    z-index: 1;
    width: 100%;
    min-height: 180px;
    padding-bottom: 2px;
}

.hanoi-peg-base {
    position: relative;
    z-index: 2;
    width: 94%;
    height: 12px;
    background: linear-gradient(180deg, var(--bg-card-hover), var(--bg-secondary));
    border: 1px solid var(--border);
    border-radius: 4px;
    margin-top: 4px;
}

.hanoi-peg-base.hanoi-peg-base-target {
    background: linear-gradient(180deg, var(--accent-secondary-soft), var(--bg-secondary));
    border-color: var(--accent-secondary);
}

.hanoi-peg-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-top: 6px;
    letter-spacing: 1px;
}

.hanoi-peg-label.hanoi-peg-label-target {
    color: var(--accent-secondary);
}

.hanoi-disc {
    height: 22px;
    border-radius: 11px;
    border: 1px solid rgba(0, 0, 0, 0.25);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.25);
    transition: transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
    will-change: transform;
}

.hanoi-disc-size-1 { width: 36%;  background: linear-gradient(180deg, #00E59B, #00B77A); }
.hanoi-disc-size-2 { width: 50%;  background: linear-gradient(180deg, #7B61FF, #5B41DF); }
.hanoi-disc-size-3 { width: 64%;  background: linear-gradient(180deg, #FFCE45, #E5A81F); }
.hanoi-disc-size-4 { width: 78%;  background: linear-gradient(180deg, #FF5757, #DB3A3A); }
.hanoi-disc-size-5 { width: 92%;  background: linear-gradient(180deg, #4FC3F7, #2E9BCF); }

.hanoi-disc.hanoi-disc-lifted {
    transform: translateY(-16px) scale(1.04);
    box-shadow: 0 6px 18px rgba(123, 97, 255, 0.45);
}

.hanoi-disc.hanoi-disc-drop {
    animation: hanoiDiscDrop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes hanoiDiscDrop {
    0%   { transform: translateY(-24px) scale(1.04); opacity: 0.7; }
    60%  { transform: translateY(3px) scale(1); opacity: 1; }
    100% { transform: translateY(0) scale(1); opacity: 1; }
}

.hanoi-hint {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-height: 1.2rem;
    padding: 8px 4px;
}

.hanoi-footer {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 4px 0;
}

.hanoi-footer .hanoi-hint {
    flex: 1;
    text-align: left;
    padding: 4px 0;
}

.hanoi-restart-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 7px 12px;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
}

.hanoi-restart-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: var(--accent-primary-soft);
}

.hanoi-restart-btn svg {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.hanoi-restart-btn:hover svg {
    transform: rotate(-90deg);
}

.hanoi-restart-btn.hanoi-restart-confirm {
    border-color: var(--accent-warm);
    color: var(--accent-warm);
    background: var(--accent-warm-soft);
    animation: hanoiRestartPulse 1.2s ease-in-out infinite;
}

.hanoi-restart-btn.hanoi-restart-confirm svg {
    transform: rotate(-180deg);
}

@keyframes hanoiRestartPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 87, 87, 0.4); }
    50%      { box-shadow: 0 0 0 6px rgba(255, 87, 87, 0); }
}

/* ======================== DUAL N-BACK GAME ======================== */
.dnb-grid .nback-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: transparent;
    transition: all 0.2s ease;
}

.dnb-grid .nback-cell.lit {
    color: white;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.dnb-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 14px;
}

.dnb-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    border: 2px solid;
    font-family: var(--font-display);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    -webkit-tap-highlight-color: transparent;
}

.dnb-btn-label {
    font-size: 1rem;
}

.dnb-btn-key {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    opacity: 0.6;
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 8px;
    border-radius: 4px;
}

.dnb-btn-pos {
    background: rgba(79, 195, 247, 0.12);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.dnb-btn-pos:hover {
    background: rgba(79, 195, 247, 0.22);
}

.dnb-btn-letter {
    background: rgba(183, 148, 246, 0.12);
    border-color: #B794F6;
    color: #B794F6;
}

.dnb-btn-letter:hover {
    background: rgba(183, 148, 246, 0.22);
}

.dnb-btn.dnb-btn-pressed {
    transform: scale(0.96);
    background: rgba(123, 97, 255, 0.35);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.dnb-btn.dnb-btn-correct {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
    color: white;
    animation: dnbBtnCorrect 0.4s ease;
}

.dnb-btn.dnb-btn-wrong {
    background: var(--accent-warm);
    border-color: var(--accent-warm);
    color: white;
    animation: dnbBtnWrong 0.4s ease;
}

@keyframes dnbBtnCorrect {
    0%, 100% { transform: scale(1); }
    50%      { transform: scale(1.08); }
}

@keyframes dnbBtnWrong {
    0%, 100% { transform: translateX(0); }
    25%      { transform: translateX(-6px); }
    75%      { transform: translateX(6px); }
}

/* ======================== GO / NO-GO GAME ======================== */
.gng-intro {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 14px 16px;
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.gng-rule-row {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
}

.gng-rule-box {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    padding: 8px 14px;
    border-radius: var(--radius-md);
    min-width: 80px;
    text-align: center;
    border: 2px solid;
}

.gng-rule-go {
    background: var(--accent-secondary-soft);
    color: var(--accent-secondary);
    border-color: var(--accent-secondary);
}

.gng-rule-nogo {
    background: var(--accent-warm-soft);
    color: var(--accent-warm);
    border-color: var(--accent-warm);
}

.gng-rule-arrow {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.gng-rule-action {
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.gng-rule-action-go { color: var(--accent-secondary); }
.gng-rule-action-nogo { color: var(--accent-warm); }

.gng-stage {
    position: relative;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 20px;
    margin-bottom: 14px;
    min-height: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease;
    overflow: hidden;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.gng-stage.gng-stage-correct {
    border-color: var(--accent-secondary);
    background: var(--accent-secondary-soft);
}

.gng-stage.gng-stage-wrong {
    border-color: var(--accent-warm);
    background: var(--accent-warm-soft);
    animation: gngStageShake 0.35s ease;
}

@keyframes gngStageShake {
    0%, 100% { transform: translateX(0); }
    25%      { transform: translateX(-8px); }
    75%      { transform: translateX(8px); }
}

.gng-timer-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--bg-secondary);
}

.gng-timer-fill {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
}

.gng-letter {
    font-family: var(--font-mono);
    font-size: 5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--text-primary);
}

.gng-letter.gng-letter-go {
    color: var(--accent-secondary);
    text-shadow: 0 2px 16px rgba(0, 229, 155, 0.35);
}

.gng-letter.gng-letter-nogo {
    color: var(--accent-warm);
    text-shadow: 0 2px 16px rgba(255, 87, 87, 0.4);
    animation: gngLetterPulse 0.25s ease;
}

@keyframes gngLetterPulse {
    0%   { transform: scale(0.85); opacity: 0.6; }
    100% { transform: scale(1);    opacity: 1; }
}

.gng-feedback {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    min-height: 1.3rem;
    color: var(--text-secondary);
}

.gng-feedback-correct { color: var(--accent-secondary); }
.gng-feedback-wrong   { color: var(--accent-warm); }
.gng-feedback-miss    { color: var(--accent-gold); }

.gng-tap-btn {
    display: block;
    width: 100%;
    padding: 18px 20px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: transform 0.1s ease, filter 0.15s ease;
    -webkit-tap-highlight-color: transparent;
    margin-bottom: 14px;
}

.gng-tap-btn:hover {
    filter: brightness(1.08);
}

.gng-tap-btn:active {
    transform: scale(0.97);
}

.gng-info {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-height: 1.2rem;
}

/* ======================== GUIDED SESSION (v1.8.0) ======================== */

/* Session start button in coach panel */
.coach-session-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    padding: 16px 18px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border: none;
    border-radius: var(--radius-md);
    color: white;
    cursor: pointer;
    margin-bottom: 18px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    text-align: left;
    font-family: var(--font-display);
    -webkit-tap-highlight-color: transparent;
}

.coach-session-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(123, 97, 255, 0.35);
}

.coach-session-btn:active {
    transform: translateY(0);
}

.coach-session-icon {
    flex-shrink: 0;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: white;
}

.coach-session-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.coach-session-title {
    font-size: 1rem;
    font-weight: 700;
    color: white;
}

.coach-session-sub {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.85);
}

/* Session mode selector block (v1.8.0) */
.coach-session-block {
    background: linear-gradient(135deg, rgba(123, 97, 255, 0.08), rgba(0, 229, 155, 0.05));
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-md);
    padding: 14px 14px 12px;
    margin-bottom: 18px;
}

.coach-session-title-lbl {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    text-align: center;
}

.coach-session-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 10px;
}

.coach-session-opt {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 12px 6px;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-display);
    -webkit-tap-highlight-color: transparent;
}

.coach-session-opt:hover {
    border-color: var(--accent-primary);
    background: var(--accent-primary-soft);
    transform: translateY(-2px);
}

.coach-session-opt:active {
    transform: translateY(0) scale(0.97);
}

.coach-session-opt-val {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-primary);
    line-height: 1;
}

.coach-session-opt-lbl {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.coach-session-hint {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-align: center;
    font-style: italic;
}

/* Session sticky header (v1.8.0) */
.session-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 900;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, rgba(13, 18, 37, 0.95) 100%);
    border-bottom: 1px solid var(--accent-primary);
    box-shadow: 0 2px 16px rgba(123, 97, 255, 0.25);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.session-header-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.session-header-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.session-header-time-item {
    margin-left: auto;
}

.session-header-lbl {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.session-header-val {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.session-header-val.session-time-warn {
    color: var(--accent-warm);
    animation: sessionTimeWarnPulse 1s ease-in-out infinite;
}

@keyframes sessionTimeWarnPulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.5; }
}

.session-header-abort {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.95rem;
    transition: var(--transition);
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
}

.session-header-abort:hover {
    border-color: var(--accent-warm);
    color: var(--accent-warm);
    background: var(--accent-warm-soft);
}

/* Push content down when session is active */
body.session-active .app-header {
    margin-top: 52px;
}

/* Session Transition Modal */
.sess-trans-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 28px 24px;
    max-width: 420px;
    width: 100%;
    box-shadow: var(--shadow-glow);
    animation: modalSlideUp 0.55s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.sess-trans-header {
    text-align: center;
    margin-bottom: 18px;
}

.sess-trans-progress {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 8px;
}

.sess-trans-progress-bar {
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    overflow: hidden;
}

.sess-trans-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 3px;
    transition: width 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.sess-trans-last {
    text-align: center;
    padding: 16px 14px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: 18px;
}

.sess-last-label {
    font-size: 0.72rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.sess-last-value {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 8px;
}

.sess-last-badge {
    display: flex;
    justify-content: center;
}

.sess-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 0.78rem;
    font-weight: 600;
}

.sess-badge-best { background: var(--accent-gold-soft); color: var(--accent-gold); }
.sess-badge-good { background: var(--accent-secondary-soft); color: var(--accent-secondary); }
.sess-badge-ok   { background: var(--accent-primary-soft); color: var(--accent-primary); }
.sess-badge-bad  { background: var(--accent-warm-soft); color: var(--accent-warm); }

.sess-trans-next-wrap {
    margin-bottom: 20px;
}

.sess-trans-next-label {
    font-size: 0.72rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.sess-trans-next {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-md);
}

.sess-trans-next-icon {
    font-size: 2rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sess-trans-next-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sess-trans-next-area {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.sess-trans-continue {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
}

/* Session Summary Modal */
.sess-sum-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 28px 22px;
    max-width: 480px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-glow);
    animation: modalSlideUp 0.55s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.sess-sum-header {
    text-align: center;
    margin-bottom: 20px;
}

.sess-sum-trophy {
    font-size: 2.4rem;
    margin-bottom: 6px;
}

.sess-sum-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.sess-sum-coach {
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-style: italic;
    padding: 0 10px;
}

.sess-sum-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}

.sess-sum-stat {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 6px;
    text-align: center;
}

.sess-sum-stat-val {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.sess-sum-stat-lbl {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 2px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sess-sum-games-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 18px;
}

.sess-sum-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.sess-sum-num {
    width: 22px;
    height: 22px;
    background: var(--accent-primary-soft);
    color: var(--accent-primary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sess-sum-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.sess-sum-info {
    flex: 1;
    min-width: 0;
}

.sess-sum-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.sess-sum-score {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.sess-sum-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 12px;
    flex-shrink: 0;
}

.sess-sum-best { background: var(--accent-gold-soft); color: var(--accent-gold); }
.sess-sum-good { background: var(--accent-secondary-soft); color: var(--accent-secondary); }
.sess-sum-ok   { background: var(--accent-primary-soft); color: var(--accent-primary); }
.sess-sum-bad  { background: var(--accent-warm-soft); color: var(--accent-warm); }

.sess-sum-actions .btn-primary {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
}

/* ======================== RESPONSIVE ======================== */
@media (max-width: 640px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .game-card-inner {
        padding: 22px 20px;
        min-height: 200px;
    }

    .simon-board {
        width: 260px;
        height: 260px;
    }

    .stroop-word {
        font-size: 2.5rem;
    }

    .math-problem {
        font-size: 2.2rem;
    }

    .header-stat:first-child {
        display: none;
    }

    .header-content {
        padding: 12px 16px;
    }

    .dashboard {
        padding: 20px 16px 48px;
    }

    .game-container {
        padding: 16px;
        height: calc(100vh - 57px);
        height: calc(100dvh - 57px);
    }

    .game-header {
        margin-bottom: 16px;
    }

    .difficulty-select {
        padding: 14px 12px;
        margin-bottom: 16px;
    }

    .diff-btn {
        padding: 8px 14px;
        font-size: 0.8rem;
    }

    .stroop-stats-bar, .memory-stats-bar {
        margin-bottom: 12px;
    }

    .math-display {
        margin-bottom: 12px;
    }

    .math-problem {
        font-size: 2rem;
        margin-bottom: 12px;
        min-height: 44px;
    }

    .math-input-area {
        margin-bottom: 12px;
    }

    .math-input {
        padding: 10px 14px;
        font-size: 1.2rem;
        width: 130px;
    }

    .math-key {
        padding: 11px;
        font-size: 1.1rem;
    }

    .memory-board {
        gap: 8px;
    }

    /* Digit Span mobile */
    .digit-display {
        font-size: 3.5rem;
        min-height: 4rem;
    }

    .digit-user-input {
        font-size: 1.5rem;
        padding: 12px 10px;
        min-height: 50px;
    }

    .digit-key {
        font-size: 1.25rem;
        padding: 14px 0;
    }

    .digit-stage {
        padding: 24px 12px;
        min-height: 150px;
    }

    /* Tower of Hanoi mobile */
    .hanoi-board {
        padding: 18px 8px 8px;
        min-height: 220px;
    }

    .hanoi-peg {
        min-height: 180px;
    }

    .hanoi-peg-discs {
        min-height: 140px;
    }

    .hanoi-disc {
        height: 18px;
        border-radius: 9px;
    }

    .hanoi-stat-value {
        font-size: 1.2rem;
    }

    .hanoi-restart-btn {
        padding: 6px 10px;
        font-size: 0.75rem;
    }

    .hanoi-restart-label {
        display: none;
    }

    .hanoi-restart-btn.hanoi-restart-confirm .hanoi-restart-label {
        display: inline;
    }

    /* Dual N-Back mobile */
    .dnb-grid .nback-cell {
        font-size: 1.6rem;
    }

    .dnb-btn {
        padding: 12px 10px;
    }

    .dnb-btn-label {
        font-size: 0.9rem;
    }

    .dnb-btn-key {
        font-size: 0.65rem;
    }

    /* Go/No-Go mobile */
    .gng-letter {
        font-size: 3.8rem;
    }

    .gng-stage {
        padding: 30px 16px;
        min-height: 180px;
    }

    .gng-tap-btn {
        padding: 16px;
        font-size: 1rem;
    }

    .gng-rule-box {
        font-size: 0.85rem;
        padding: 6px 10px;
        min-width: 70px;
    }

    .gng-rule-action {
        font-size: 0.8rem;
    }

    /* Reflex Tap mobile */
    .reflex-arena {
        height: 250px;
    }

    .reflex-time-flash {
        font-size: 1.5rem;
    }

    /* Brain Coach mobile */
    .coach-panel {
        padding: 18px 14px;
    }

    .coach-area-name {
        width: 60px;
        font-size: 0.7rem;
    }

    .coach-routine-item {
        padding: 10px 12px;
    }

    /* Pattern Match mobile */
    .pattern-grid {
        max-width: 260px;
    }

    .pattern-msg {
        font-size: 0.9rem;
    }

    /* N-Back mobile */
    .nback-grid {
        width: 170px;
        height: 170px;
    }

    .nback-btn {
        padding: 14px 20px;
        font-size: 0.9rem;
        min-width: 110px;
    }

    .nback-progress {
        gap: 3px;
        flex-wrap: wrap;
        max-width: 300px;
        margin: 0 auto 12px;
    }

    .nback-dot {
        width: 7px;
        height: 7px;
    }

    .nback-info {
        font-size: 0.78rem;
    }

    /* Session header mobile (v1.8.0) */
    .session-header-inner {
        padding: 8px 12px;
        gap: 12px;
    }

    .session-header-lbl {
        font-size: 0.62rem;
        letter-spacing: 0.5px;
    }

    .session-header-val {
        font-size: 1rem;
    }

    .session-header-abort {
        width: 28px;
        height: 28px;
        font-size: 0.85rem;
    }

    body.session-active .app-header {
        margin-top: 46px;
    }

    /* Coach session selector mobile */
    .coach-session-block {
        padding: 12px 10px 10px;
    }

    .coach-session-options {
        gap: 6px;
    }

    .coach-session-opt {
        padding: 10px 4px;
    }

    .coach-session-opt-val {
        font-size: 1.2rem;
    }

    .coach-session-opt-lbl {
        font-size: 0.62rem;
    }

    .coach-session-hint {
        font-size: 0.68rem;
    }
}

@media (max-width: 380px) {
    .stroop-options {
        grid-template-columns: 1fr;
    }

    .math-keypad {
        max-width: 240px;
    }

    .memory-board.grid-5x4 .memory-card {
        aspect-ratio: 1;
    }

    .diff-btn {
        padding: 8px 10px;
        font-size: 0.75rem;
    }
}

/* ======================== MOBILE TOUCH OPTIMIZATIONS ======================== */

/* Minimum 44px touch targets (Apple HIG / Material) */
button, .game-card, .simon-btn, .stroop-option, .math-key, .memory-card,
.reflex-target, .pattern-cell, .nback-btn {
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
}

.simon-btn {
    min-width: 44px;
    min-height: 44px;
}

.stroop-option {
    min-height: 52px;
}

.math-key {
    min-height: 48px;
    min-width: 48px;
}

/* Active states for touch feedback (hover doesn't work on touch) */
@media (hover: none) and (pointer: coarse) {
    .game-card:hover {
        transform: none;
    }

    .game-card:active {
        transform: scale(0.97);
    }

    .game-card:active .game-card-play {
        background: var(--accent-primary);
        color: white;
    }

    .game-card:active .game-card-glow {
        opacity: 1;
    }

    .simon-btn:active::after {
        opacity: 0.4;
    }

    .stroop-option:active {
        background: var(--accent-primary-soft);
        border-color: var(--accent-primary);
        transform: scale(0.96);
    }

    .math-key:active {
        background: var(--accent-primary-soft);
        border-color: var(--accent-primary);
        transform: scale(0.93);
    }

    .btn-primary:active {
        transform: scale(0.97);
        background: #6B4FE8;
    }

    .btn-back:active {
        background: var(--accent-primary-soft);
    }

    .simon-start-btn:active {
        transform: scale(0.97);
        background: #6B4FE8;
    }

    .memory-card:active .memory-card-inner {
        transform: scale(0.95);
    }

    .pattern-cell:active {
        transform: scale(0.9);
        border-color: var(--accent-primary);
    }

    .nback-btn:active {
        transform: scale(0.95);
    }

    .reflex-target:active {
        transform: scale(0.8);
    }
}

/* Safe area padding for notched phones */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .app-header {
        padding-top: env(safe-area-inset-top);
    }

    .dashboard {
        padding-bottom: calc(48px + env(safe-area-inset-bottom));
    }

    .game-container {
        padding-bottom: calc(24px + env(safe-area-inset-bottom));
    }

    .modal-content {
        margin-bottom: env(safe-area-inset-bottom);
    }
}

/* Fullscreen game area on small phones */
@media (max-height: 700px) {
    .game-header {
        margin-bottom: 16px;
    }

    .stroop-stats-bar, .memory-stats-bar {
        margin-bottom: 12px;
    }

    .stroop-display {
        margin-bottom: 16px;
    }

    .stroop-word {
        font-size: 2.2rem;
        min-height: 56px;
    }

    .math-problem {
        font-size: 2rem;
        margin-bottom: 12px;
    }

    .math-input-area {
        margin-bottom: 12px;
    }

    .modal-content {
        padding: 28px 24px;
    }

    .modal-score {
        font-size: 1.8rem;
    }
}

/* Landscape orientation adjustments */
@media (max-height: 500px) and (orientation: landscape) {
    .game-container {
        height: calc(100vh - 57px);
        height: calc(100dvh - 57px);
    }

    .game-header {
        margin-bottom: 8px;
    }

    .simon-board {
        width: 200px;
        height: 200px;
    }

    .memory-board {
        max-width: 380px;
    }

    .memory-card {
        aspect-ratio: 1;
    }

    .game-area {
        min-height: auto;
    }

    .difficulty-select {
        padding: 10px 12px;
        margin-bottom: 8px;
    }

    .reflex-arena {
        height: 180px;
    }

    .nback-grid {
        width: 140px;
        height: 140px;
        margin-bottom: 12px;
    }

    .pattern-grid {
        max-width: 220px;
        margin-bottom: 10px;
    }
}

/* ==========================================================
   Brain Trivia - Knowledge Quiz (v1.9.0)
   8pt grid, WCAG AA contrast, uses existing color system.
   ========================================================== */

.trivia-intro {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 32px 16px;
    max-width: 480px;
    margin: 0 auto;
    text-align: center;
}

.trivia-intro-icon {
    font-size: 3rem;
    line-height: 1;
    filter: drop-shadow(0 0 20px var(--accent-primary-glow));
}

.trivia-intro-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.trivia-intro-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.trivia-intro-lang {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--accent-primary-soft);
    border-radius: var(--radius-md);
    margin-top: 8px;
}

.trivia-lang-badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 2px 8px;
    border-radius: 4px;
    background: var(--accent-primary);
    color: #FFFFFF;
}

.trivia-lang-note {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.trivia-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 16px;
}

.trivia-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--accent-primary-soft);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: triviaSpin 0.8s linear infinite;
}

@keyframes triviaSpin {
    to { transform: rotate(360deg); }
}

.trivia-loading-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.trivia-error {
    padding: 16px;
    background: var(--accent-warm-soft);
    border: 1px solid var(--accent-warm);
    border-radius: var(--radius-md);
    color: var(--accent-warm);
    font-size: 0.9rem;
    line-height: 1.5;
    max-width: 420px;
}

.trivia-wrap {
    max-width: 640px;
    margin: 0 auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.trivia-meta-bar {
    display: flex;
    justify-content: space-around;
    gap: 8px;
    padding: 12px 8px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.trivia-meta-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 64px;
}

.trivia-meta-num {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.trivia-meta-lbl {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.trivia-streak-num {
    color: var(--accent-gold);
}

.trivia-timer-fill {
    background: linear-gradient(90deg, var(--accent-secondary), var(--accent-blue));
    transition: width 0.1s linear;
}

.trivia-timer-fill.trivia-timer-warn {
    background: linear-gradient(90deg, var(--accent-warm), var(--accent-gold));
}

.trivia-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    box-shadow: var(--shadow-card);
}

.trivia-category-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.trivia-category {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--accent-primary);
    text-transform: uppercase;
}

.trivia-difficulty {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.trivia-difficulty.diff-easy {
    background: var(--accent-secondary-soft);
    color: var(--accent-secondary);
}

.trivia-difficulty.diff-medium {
    background: var(--accent-gold-soft);
    color: var(--accent-gold);
}

.trivia-difficulty.diff-hard {
    background: var(--accent-warm-soft);
    color: var(--accent-warm);
}

.trivia-question {
    font-size: 1.15rem;
    line-height: 1.5;
    color: var(--text-primary);
    font-weight: 500;
}

.trivia-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.trivia-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
    min-height: 64px;
}

.trivia-option:hover:not(:disabled) {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.trivia-option:disabled {
    cursor: default;
    opacity: 0.85;
}

.trivia-option-key {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary-soft);
    color: var(--accent-primary);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.85rem;
}

.trivia-option-txt {
    flex: 1;
    line-height: 1.35;
    word-break: break-word;
}

.trivia-option.trivia-option-correct {
    background: var(--accent-secondary-soft);
    border-color: var(--accent-secondary);
    color: var(--text-primary);
}

.trivia-option.trivia-option-correct .trivia-option-key {
    background: var(--accent-secondary);
    color: #0A0F1E;
}

.trivia-option.trivia-option-wrong {
    background: var(--accent-warm-soft);
    border-color: var(--accent-warm);
    color: var(--text-primary);
}

.trivia-option.trivia-option-wrong .trivia-option-key {
    background: var(--accent-warm);
    color: #FFFFFF;
}

.trivia-feedback {
    text-align: center;
    padding: 12px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1rem;
}

.trivia-feedback.trivia-feedback-good {
    background: var(--accent-secondary-soft);
    color: var(--accent-secondary);
}

.trivia-feedback.trivia-feedback-bad {
    background: var(--accent-warm-soft);
    color: var(--accent-warm);
}

@media (max-width: 480px) {
    .trivia-options {
        grid-template-columns: 1fr;
    }

    .trivia-question {
        font-size: 1.05rem;
    }

    .trivia-card {
        padding: 16px;
    }

    .trivia-meta-num {
        font-size: 1.1rem;
    }
}

/* =============================================
   Trivia - Selector de categorias (v1.9.13)
   ============================================= */
.trivia-picker {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 16px;
    max-width: 640px;
    margin: 0 auto;
}

.trivia-picker-head {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.trivia-picker-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.trivia-picker-sub {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.trivia-picker-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    padding: 8px 12px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.trivia-picker-btn {
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    transition: background 160ms ease, border-color 160ms ease;
}

.trivia-picker-btn:hover {
    background: var(--accent-primary-soft);
    border-color: var(--accent-primary);
}

.trivia-picker-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #fff;
}

.trivia-picker-count {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-left: auto;
}

.trivia-cat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
}

.trivia-cat-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color 160ms ease, background 160ms ease, transform 120ms ease;
}

.trivia-cat-card:hover {
    border-color: var(--accent-primary);
    background: var(--accent-primary-soft);
}

.trivia-cat-card.selected {
    border-color: var(--accent-primary);
    background: var(--accent-primary-soft);
}

.trivia-cat-card:active {
    transform: scale(0.98);
}

.trivia-cat-check {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--accent-primary);
    flex-shrink: 0;
}

.trivia-cat-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.trivia-cat-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.trivia-cat-count {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.trivia-picker-footer {
    display: flex;
    gap: 10px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    padding-top: 8px;
}

.trivia-picker-back {
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 160ms ease, border-color 160ms ease;
}

.trivia-picker-back:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
}

@media (max-width: 480px) {
    .trivia-cat-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 8px;
    }
    .trivia-cat-card {
        padding: 10px;
    }
    .trivia-picker-count {
        margin-left: 0;
        width: 100%;
    }
}

/* =============================================
   Trivia v1.9.14 - Modes, Power-ups, SFX UI
   ============================================= */

/* Intro buttons (sound toggle) */
.trivia-intro-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    width: 100%;
}

.trivia-sound-toggle {
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 160ms ease, border-color 160ms ease;
}

.trivia-sound-toggle:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
}

/* Mode picker */
.trivia-picker-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--accent-primary-soft);
    color: var(--accent-primary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.trivia-mode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}

.trivia-mode-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: inherit;
    text-align: center;
    transition: border-color 180ms ease, background 180ms ease, transform 160ms ease;
}

.trivia-mode-card:hover {
    border-color: var(--accent-primary);
    background: var(--accent-primary-soft);
    transform: translateY(-2px);
}

.trivia-mode-card:active {
    transform: translateY(0) scale(0.98);
}

.trivia-mode-icon {
    font-size: 2.2rem;
    line-height: 1;
}

.trivia-mode-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
}

.trivia-mode-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Power-ups bar */
.trivia-powerups {
    display: flex;
    gap: 10px;
    justify-content: center;
    padding: 8px;
}

.trivia-powerup {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    min-width: 68px;
    padding: 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    transition: border-color 160ms ease, background 160ms ease, transform 120ms ease;
}

.trivia-powerup:hover:not(:disabled) {
    border-color: var(--accent-primary);
    background: var(--accent-primary-soft);
}

.trivia-powerup:active:not(:disabled) {
    transform: scale(0.95);
}

.trivia-powerup-icon {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.trivia-powerup-count {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.trivia-powerup-count::before { content: '\00d7\00a0'; }

.trivia-powerup-disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.trivia-powerup-disabled:hover {
    border-color: var(--border);
    background: var(--bg-card);
}

/* Total timer (time attack) */
.trivia-total-timer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px;
    background: var(--accent-primary-soft);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
}

.trivia-total-timer-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.trivia-total-timer-num {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-primary);
}

/* Timer bar: critical state */
.trivia-timer-critical {
    background: #ef4444 !important;
    animation: triviaTimerPulse 0.5s ease-in-out infinite alternate;
}

@keyframes triviaTimerPulse {
    from { opacity: 0.85; }
    to { opacity: 1; box-shadow: 0 0 10px rgba(239, 68, 68, 0.6); }
}

/* Option hidden by 50/50 */
.trivia-option-hidden {
    opacity: 0.15 !important;
    pointer-events: none !important;
    transition: opacity 300ms ease;
}

/* Shake animation on wrong answer */
.trivia-shake {
    animation: triviaShake 0.4s ease-in-out;
}

@keyframes triviaShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

/* Power-up feedback flash */
.trivia-feedback-powerup {
    background: var(--accent-primary-soft) !important;
    color: var(--accent-primary) !important;
    border: 1px solid var(--accent-primary);
    font-weight: 700;
    animation: triviaPowerupPop 0.4s ease-out;
}

@keyframes triviaPowerupPop {
    0% { transform: scale(0.8); opacity: 0; }
    50% { transform: scale(1.08); opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}

/* Mobile tweaks */
@media (max-width: 480px) {
    .trivia-mode-grid {
        grid-template-columns: 1fr;
    }
    .trivia-mode-card {
        padding: 16px;
        flex-direction: row;
        text-align: left;
    }
    .trivia-mode-icon {
        font-size: 1.8rem;
    }
    .trivia-powerup {
        min-width: 60px;
        padding: 6px 8px;
    }
    .trivia-powerup-icon {
        font-size: 0.85rem;
    }
}

/* =============================================
   Brain Gym v1.9.15 - Progression System UI
   ============================================= */

/* --- Progress bar section in dashboard --- */
.brain-progress-section {
    margin-bottom: 16px;
    padding: 0 4px;
}

.bg-progress {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    flex-wrap: wrap;
}

.bg-progress-tier {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 140px;
}

.bg-progress-tier-icon {
    font-size: 2rem;
    line-height: 1;
    filter: drop-shadow(0 0 8px var(--accent-primary-glow));
}

.bg-progress-tier-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.bg-progress-tier-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.bg-progress-tier-lvl {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.bg-progress-bar-wrap {
    flex: 1;
    min-width: 180px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.bg-progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.bg-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary, var(--accent-primary)));
    border-radius: 4px;
    transition: width 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
    box-shadow: 0 0 8px var(--accent-primary-glow);
}

.bg-progress-xp {
    font-size: 0.72rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.bg-progress-streak {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    transition: border-color 200ms ease;
}

.bg-progress-streak.active {
    border-color: #f97316;
    background: rgba(249, 115, 22, 0.08);
}

.bg-progress-streak-icon {
    font-size: 1.2rem;
    filter: grayscale(0.5);
}

.bg-progress-streak.active .bg-progress-streak-icon {
    filter: grayscale(0);
    animation: bgFlamePulse 1.4s ease-in-out infinite;
}

@keyframes bgFlamePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.bg-progress-streak-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.bg-progress-streak-num {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
    line-height: 1;
}

.bg-progress-streak-lbl {
    font-size: 0.68rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.bg-progress-achievements-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    color: var(--text-primary);
    transition: border-color 160ms ease, background 160ms ease;
}

.bg-progress-achievements-btn:hover {
    border-color: var(--accent-primary);
    background: var(--accent-primary-soft);
}

.bg-progress-achievements-btn > span:first-child {
    font-size: 1.1rem;
}

.bg-progress-achievements-count {
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

/* Mobile: stack elements */
@media (max-width: 640px) {
    .bg-progress {
        padding: 12px;
        gap: 10px;
    }
    .bg-progress-tier { min-width: 0; width: 100%; }
    .bg-progress-bar-wrap { width: 100%; order: 3; min-width: 0; }
    .bg-progress-streak { order: 2; }
    .bg-progress-achievements-btn { order: 2; }
}

/* --- Achievement toast --- */
.bg-ach-toast {
    position: fixed;
    top: 80px;
    right: -400px;
    max-width: 340px;
    background: var(--bg-card);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3), 0 0 16px var(--accent-primary-glow);
    z-index: 10000;
    transition: right 400ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.bg-ach-toast.visible {
    right: 16px;
}

.bg-ach-toast-icon {
    font-size: 2rem;
    line-height: 1;
    flex-shrink: 0;
}

.bg-ach-toast-info {
    flex: 1;
    min-width: 0;
}

.bg-ach-toast-label {
    font-size: 0.7rem;
    color: var(--accent-primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.bg-ach-toast-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.bg-ach-toast-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.3;
}

.bg-ach-toast-xp {
    margin-top: 6px;
    font-size: 0.8rem;
    color: #f59e0b;
    font-weight: 700;
    font-family: var(--font-mono);
}

/* --- Streak toast --- */
.bg-streak-toast {
    position: fixed;
    bottom: -200px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid #f97316;
    border-radius: var(--radius-md);
    padding: 12px 20px;
    display: flex;
    gap: 12px;
    align-items: center;
    box-shadow: 0 8px 24px rgba(249, 115, 22, 0.3);
    z-index: 10000;
    transition: bottom 400ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.bg-streak-toast.visible {
    bottom: 20px;
}

.bg-streak-toast-icon {
    font-size: 1.8rem;
    animation: bgFlamePulse 1.2s ease-in-out infinite;
}

.bg-streak-toast-title {
    font-weight: 700;
    color: var(--text-primary);
}

.bg-streak-toast-sub {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* --- Level up overlay --- */
.bg-levelup-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    opacity: 0;
    transition: opacity 400ms ease;
    padding: 20px;
}

.bg-levelup-overlay.visible {
    opacity: 1;
}

.bg-levelup-card {
    background: var(--bg-card);
    border: 2px solid var(--accent-primary);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    max-width: 400px;
    position: relative;
    box-shadow: 0 0 60px var(--accent-primary-glow);
    transform: scale(0.8);
    transition: transform 400ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.bg-levelup-overlay.visible .bg-levelup-card {
    transform: scale(1);
}

.bg-levelup-icon {
    font-size: 5rem;
    line-height: 1;
    margin-bottom: 16px;
    animation: bgLevelUpIcon 1s ease-out;
}

@keyframes bgLevelUpIcon {
    0%   { transform: scale(0) rotate(-180deg); opacity: 0; }
    60%  { transform: scale(1.2) rotate(10deg); opacity: 1; }
    100% { transform: scale(1) rotate(0); opacity: 1; }
}

.bg-levelup-title {
    font-size: 1rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    margin-bottom: 8px;
}

.bg-levelup-tier {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.bg-levelup-sub {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.bg-levelup-close {
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    padding: 10px 32px;
    background: var(--accent-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform 120ms ease;
}

.bg-levelup-close:hover {
    transform: translateY(-1px);
}

.bg-levelup-close:active {
    transform: scale(0.96);
}

/* --- Achievements gallery --- */
.bg-ach-gallery-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    opacity: 0;
    transition: opacity 300ms ease;
    padding: 20px;
}

.bg-ach-gallery-overlay.visible {
    opacity: 1;
}

.bg-ach-gallery {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    max-width: 800px;
    width: 100%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.bg-ach-gallery-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.bg-ach-gallery-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.bg-ach-gallery-sub {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.bg-ach-gallery-close {
    font-size: 1.4rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    transition: background 160ms ease, color 160ms ease;
}

.bg-ach-gallery-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.bg-ach-gallery-grid {
    padding: 16px 24px 24px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
    overflow-y: auto;
}

.bg-ach-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 14px 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: border-color 180ms ease, transform 180ms ease;
}

.bg-ach-card.unlocked {
    border-color: var(--accent-primary);
    background: var(--accent-primary-soft);
}

.bg-ach-card.locked {
    opacity: 0.5;
}

.bg-ach-card-icon {
    font-size: 2rem;
    margin-bottom: 8px;
    line-height: 1;
}

.bg-ach-card-name {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.bg-ach-card-desc {
    font-size: 0.72rem;
    color: var(--text-secondary);
    line-height: 1.3;
}

.bg-ach-card-xp {
    margin-top: 6px;
    font-size: 0.72rem;
    color: #f59e0b;
    font-weight: 700;
    font-family: var(--font-mono);
}

/* --- XP gain badge in result modal --- */
.bg-result-xp {
    margin-top: 12px;
    padding: 8px 14px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid #f59e0b;
    border-radius: var(--radius-sm);
    font-weight: 700;
    color: #f59e0b;
    font-family: var(--font-mono);
    display: inline-block;
}

/* --- Mobile tweaks --- */
@media (max-width: 480px) {
    .bg-ach-toast {
        top: 70px;
        max-width: calc(100vw - 32px);
    }
    .bg-ach-toast.visible {
        right: 16px;
        left: 16px;
    }
    .bg-levelup-card {
        padding: 28px 20px;
    }
    .bg-levelup-icon {
        font-size: 3.5rem;
    }
    .bg-levelup-tier {
        font-size: 1.8rem;
    }
    .bg-ach-gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        padding: 12px 16px 20px;
    }
}