/* Chess Openings Page Styles */

/* --- Overall progress bar --- */
.overall-progress {
    margin: 0 0 0.6rem;
    background: rgba(255,255,255,.04);
    border-radius: 10px;
    padding: 0.7rem 0.9rem;
    border: 1px solid rgba(255,255,255,.08);
}
.overall-progress-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,.6);
    margin-bottom: 0.5rem;
    font-weight: 600;
}
.overall-progress-text {
    color: rgba(255,255,255,.85);
    font-variant-numeric: tabular-nums;
}
.overall-progress-track {
    height: 8px;
    background: rgba(255,255,255,.08);
    border-radius: 4px;
    overflow: hidden;
}
.overall-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #7c4dff, #448aff);
    border-radius: 4px;
    transition: width 0.6s ease;
    min-width: 0;
}

/* --- Card completion checkmark --- */
.completion-check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: #22c55e;
    color: #fff;
    border-radius: 50%;
    font-size: 14px;
    font-weight: 700;
    margin-left: 0.5rem;
    vertical-align: middle;
    flex-shrink: 0;
}
.opening-card.item-completed {
    border-color: rgba(34,197,94,.25);
}

.openings-page .main {
    min-height: 100vh;
    padding: 2rem 1rem 4rem;
}

.openings-header {
    text-align: center;
    padding: 2rem 0 1.5rem;
}

.openings-title {
    font-size: 2.25rem;
    font-weight: 900;
    color: var(--text-white, #fff);
    text-shadow: 0 2px 8px rgba(0,0,0,.35);
    margin: 0 0 0.5rem;
}

.openings-subtitle {
    font-size: 1rem;
    color: var(--text-white, #fff);
    opacity: 0.7;
    margin: 0;
    max-width: 600px;
    margin-inline: auto;
}

.openings-container {
    max-width: 800px;
    margin: 0 auto;
}

/* Intro text */
.openings-intro {
    color: rgba(255,255,255,.8);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    text-align: center;
    max-width: 650px;
    margin-inline: auto;
}

/* Color Tab Switcher */
.openings-tabs {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.openings-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.5rem;
    border-radius: 10px;
    border: 2px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.06);
    color: rgba(255,255,255,.7);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all .2s;
    user-select: none;
}

.openings-tab:hover {
    background: rgba(255,255,255,.1);
    color: #fff;
}

.openings-tab.active {
    border-color: var(--primary, #3b82f6);
    background: rgba(59,130,246,.15);
    color: #fff;
}

.openings-tab .tab-icon {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid currentColor;
    flex-shrink: 0;
}

.openings-tab.tab-white .tab-icon {
    background: #fff;
    border-color: rgba(255,255,255,.4);
}

.openings-tab.tab-black .tab-icon {
    background: #222;
    border-color: rgba(255,255,255,.3);
}

.openings-tab.tab-white.active .tab-icon {
    border-color: #fff;
    box-shadow: 0 0 8px rgba(255,255,255,.3);
}

.openings-tab.tab-black.active .tab-icon {
    border-color: #93c5fd;
    box-shadow: 0 0 8px rgba(59,130,246,.3);
}

/* Table of Contents */
.openings-toc {
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-lg, 16px);
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
}

.openings-toc h2 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-white, #fff);
    margin: 0 0 1rem;
}

.openings-toc ol {
    margin: 0;
    padding-left: 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.openings-toc a {
    color: rgba(255,255,255,.8);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color .2s;
}

.openings-toc a:hover {
    color: var(--primary, #3b82f6);
}

/* Opening Card */
.opening-card {
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-lg, 16px);
    padding: 2rem;
    margin-bottom: 2rem;
    scroll-margin-top: 80px;
}

.opening-card h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-white, #fff);
    margin: 0 0 0.25rem;
}

.opening-card h2 .opening-number {
    color: var(--primary, #3b82f6);
    margin-right: 0.25rem;
}

.opening-meta {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.opening-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    background: rgba(255,255,255,.08);
    color: rgba(255,255,255,.7);
}

.opening-badge.white { background: rgba(255,255,255,.15); color: #fff; }
.opening-badge.black { background: rgba(0,0,0,.4); color: #ccc; }
.opening-badge.eco { background: rgba(59,130,246,.15); color: #93c5fd; }
.opening-badge.style-attacking { background: rgba(239,68,68,.12); color: #fca5a5; }
.opening-badge.style-positional { background: rgba(34,197,94,.12); color: #86efac; }
.opening-badge.style-solid { background: rgba(234,179,8,.12); color: #fde047; }
.opening-badge.style-universal { background: rgba(168,85,247,.12); color: #c4b5fd; }

.opening-gif-container {
    text-align: center;
    margin: 1.5rem 0;
}

.opening-gif {
    max-width: 100%;
    width: 400px;
    height: auto;
    border-radius: 8px;
    border: 2px solid rgba(255,255,255,.1);
    box-shadow: 0 4px 20px rgba(0,0,0,.3);
}

.opening-description {
    color: rgba(255,255,255,.85);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.opening-description strong {
    color: #fff;
}

.opening-pgn {
    background: rgba(0,0,0,.3);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: rgba(255,255,255,.8);
    line-height: 1.6;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

/* Strengths & Weaknesses */
.opening-pros-cons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1rem;
}

.opening-pros, .opening-weaknesses {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    line-height: 1.6;
}

.opening-pros {
    background: rgba(34,197,94,.08);
    border-left: 3px solid #22c55e;
}

.opening-weaknesses {
    background: rgba(239,68,68,.08);
    border-left: 3px solid #ef4444;
}

.opening-pros h3, .opening-weaknesses h3 {
    font-size: 0.85rem;
    font-weight: 700;
    margin: 0 0 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.opening-pros h3 { color: #86efac; }
.opening-weaknesses h3 { color: #fca5a5; }

.opening-pros ul, .opening-weaknesses ul {
    margin: 0;
    padding-left: 1.1rem;
    color: rgba(255,255,255,.8);
}

.opening-pros li, .opening-weaknesses li {
    margin-bottom: 0.2rem;
}

/* Fun fact */
.opening-fact {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background: rgba(59,130,246,.1);
    border-left: 3px solid var(--primary, #3b82f6);
    border-radius: 0 8px 8px 0;
    color: rgba(255,255,255,.85);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Hidden cards via tab switching */
.opening-card[data-color="white"] { display: block; }
.opening-card[data-color="black"] { display: none; }

.openings-container.show-black .opening-card[data-color="white"] { display: none; }
.openings-container.show-black .opening-card[data-color="black"] { display: block; }

.openings-container.show-black .toc-white { display: none; }
.openings-container.show-black .toc-black { display: block; }
.openings-container:not(.show-black) .toc-white { display: block; }
.openings-container:not(.show-black) .toc-black { display: none; }

/* Responsive */
@media (max-width: 600px) {
    .openings-title { font-size: 1.75rem; }
    .opening-card { padding: 1.25rem; }
    .opening-card h2 { font-size: 1.25rem; }
    .openings-toc ol { grid-template-columns: 1fr; }
    .opening-gif { width: 100%; }
    .openings-header { padding: 1rem 0; }
    .opening-pros-cons { grid-template-columns: 1fr; }
    .openings-tabs { gap: 0.35rem; }
    .openings-tab { padding: 0.5rem 1rem; font-size: 0.85rem; }
}

/* ===========================================================================
   TRAINING MODE
   =========================================================================== */

/* --- CTA Card --- */
.training-cta-card {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 1rem 1.25rem;
    margin-bottom: 1.75rem;
    background: rgba(255,255,255,.08);
    border: 1.5px solid rgba(255,255,255,.15);
    border-radius: 14px;
    cursor: pointer;
    transition: all .25s;
    max-width: 520px;
    margin-inline: auto;
}
.cta-card-top {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.training-cta-card .overall-progress {
    margin: 0.7rem 0 0;
    padding: 0;
    border: none;
    background: none;
}
.training-cta-card:hover {
    background: rgba(255,255,255,.13);
    border-color: rgba(255,255,255,.25);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(0,0,0,.15);
}
.cta-card-left {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: rgba(34,197,94,.15);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.cta-card-icon {
    font-size: 1.6rem;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,.2));
}
.cta-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}
.cta-card-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
}
.cta-card-desc {
    font-size: 0.8rem;
    color: rgba(255,255,255,.55);
    line-height: 1.3;
}
.cta-card-arrow {
    font-size: 1.5rem;
    color: rgba(255,255,255,.35);
    font-weight: 300;
    flex-shrink: 0;
    transition: transform .2s;
}
.training-cta-card:hover .cta-card-arrow {
    transform: translateX(3px);
    color: rgba(255,255,255,.6);
}

/* --- XP Toast (same as puzzles) --- */
.xp-toast {
    position: fixed;
    top: 80px;
    right: 20px;
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: #fff;
    padding: 1rem 1.5rem;
    border-radius: 14px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    z-index: 10000;
    box-shadow: 0 8px 30px rgba(0,0,0,.3);
    transform: translateX(calc(100% + 40px));
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    min-width: 180px;
}
.xp-toast.show { transform: translateX(0); }
.xp-toast-title { font-size: 1.3rem; font-weight: 800; }
.xp-toast-sub { font-size: 0.85rem; opacity: .85; font-weight: 600; }

/* --- Training Section --- */
.training-section {
    padding: 1.5rem 1rem 2rem;
    min-height: 100vh;
}

.training-container {
    max-width: 780px;
    margin: 0 auto;
}

.training-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.training-title {
    font-size: 1.75rem;
    font-weight: 900;
    color: #fff;
    margin: 0;
}

.training-header-progress {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
    margin-right: 0.75rem;
}
.training-header-progress-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: rgba(255,255,255,.65);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}
.training-header-progress-track {
    width: 80px;
    height: 6px;
    background: rgba(255,255,255,.1);
    border-radius: 3px;
    overflow: hidden;
}
.training-header-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #7c4dff, #448aff);
    border-radius: 3px;
    transition: width 0.6s ease;
    width: 0%;
}

.training-close-btn {
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.15);
    color: rgba(255,255,255,.7);
    width: 40px;
    height: 40px;
    border-radius: 10px;
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .2s;
}
.training-close-btn:hover {
    background: rgba(255,255,255,.15);
    color: #fff;
}

/* --- Mode Cards --- */
.training-mode-select {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.training-mode-card {
    flex: 1;
    padding: 1rem;
    background: rgba(255,255,255,.06);
    border: 2px solid rgba(255,255,255,.1);
    border-radius: 14px;
    color: rgba(255,255,255,.7);
    cursor: pointer;
    text-align: center;
    transition: all .2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
}
.training-mode-card:hover {
    background: rgba(255,255,255,.1);
    color: #fff;
}
.training-mode-card.active {
    border-color: var(--primary, #3b82f6);
    background: rgba(59,130,246,.12);
    color: #fff;
}
.mode-card-icon { font-size: 1.8rem; }
.mode-card-label { font-size: 1rem; font-weight: 700; }
.mode-card-desc { font-size: 0.8rem; opacity: .6; }

/* --- Speed HUD --- */
.training-speed-hud {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    padding: 0.75rem 1rem;
    background: rgba(0,0,0,.3);
    border-radius: 12px;
    margin-bottom: 1rem;
}

.speed-timer {
    font-size: 1.6rem;
    font-weight: 900;
    color: #fff;
    font-variant-numeric: tabular-nums;
    transition: color .3s;
}
.speed-timer.time-low {
    color: #ef4444;
    animation: timer-pulse .5s ease-in-out infinite;
}
@keyframes timer-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .5; }
}

.speed-score-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.speed-score-label { font-size: 0.7rem; color: rgba(255,255,255,.5); text-transform: uppercase; font-weight: 600; }
.speed-score-val { font-size: 1.6rem; font-weight: 900; color: #22c55e; }

.speed-lives-wrap {
    display: flex;
    gap: 0.3rem;
    font-size: 1.3rem;
}
.speed-heart { transition: all .3s; }
.speed-heart.lost { opacity: .2; filter: grayscale(1); transform: scale(0.7); }

/* --- Opening Info --- */
.training-opening-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.training-opening-name {
    font-size: 1.25rem;
    font-weight: 800;
    color: #fff;
}

.training-opening-color {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
}
.badge-white { background: rgba(255,255,255,.15); color: #fff; }
.badge-black { background: rgba(0,0,0,.4); color: #ccc; }

/* --- Board Layout --- */
.training-board-layout {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.training-board-wrap {
    flex: 0 0 auto;
    position: relative;
}

.training-board {
    width: min(400px, calc(100vw - 200px));
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
}

.training-side-panel {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* --- Stats Row --- */
.training-stats-row {
    display: flex;
    gap: 0.75rem;
}

.training-stat {
    flex: 1;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 10px;
    padding: 0.6rem 0.75rem;
    text-align: center;
}
.training-stat-label {
    display: block;
    font-size: 0.7rem;
    color: rgba(255,255,255,.5);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 0.15rem;
}
.training-stat-val {
    display: block;
    font-size: 1.3rem;
    font-weight: 800;
    color: #fff;
}

/* --- Status --- */
.training-status {
    font-size: 0.95rem;
    font-weight: 700;
    padding: 0.6rem 0.75rem;
    border-radius: 8px;
    background: rgba(59,130,246,.12);
    color: #93c5fd;
    text-align: center;
    transition: all .25s;
}
.training-status.correct { background: rgba(34,197,94,.12); color: #86efac; }
.training-status.wrong { background: rgba(239,68,68,.12); color: #fca5a5; }
.training-status.success { background: rgba(34,197,94,.2); color: #22c55e; }
.training-status.hint { background: rgba(234,179,8,.12); color: #fde047; }

/* --- Progress Bar --- */
.training-progress-bar-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.training-progress-bar {
    flex: 1;
    height: 8px;
    background: rgba(255,255,255,.1);
    border-radius: 4px;
    overflow: hidden;
}

.training-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #3b82f6, #22c55e);
    border-radius: 4px;
    transition: width .35s ease;
    width: 0;
}

.training-move-count {
    font-size: 0.8rem;
    color: rgba(255,255,255,.5);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

/* --- Buttons --- */
.training-buttons {
    display: flex;
    gap: 0.5rem;
}

.auto-advance-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.82rem;
    color: rgba(255,255,255,.55);
    cursor: pointer;
    user-select: none;
    margin-top: 0.3rem;
}
.auto-advance-toggle input[type="checkbox"] {
    accent-color: var(--accent, #7c4dff);
    width: 15px;
    height: 15px;
    cursor: pointer;
}

.training-btn {
    flex: 1;
    padding: 0.6rem 1rem;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.06);
    color: rgba(255,255,255,.8);
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: all .2s;
}
.training-btn:hover {
    background: rgba(255,255,255,.12);
    color: #fff;
}

.hint-btn {
    border-color: rgba(234,179,8,.25);
    background: rgba(234,179,8,.08);
    color: #fde047;
}
.hint-btn:hover { background: rgba(234,179,8,.15); }

.restart-btn {
    border-color: rgba(96,165,250,.25);
    background: rgba(96,165,250,.08);
    color: #93c5fd;
}
.restart-btn:hover { background: rgba(96,165,250,.15); }

.skip-btn {
    border-color: rgba(255,255,255,.12);
}

/* --- Board Effects --- */
.training-board.shake {
    animation: board-shake .4s ease-in-out;
}
@keyframes board-shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

.training-board.flash-correct {
    box-shadow: 0 0 20px rgba(34,197,94,.5), inset 0 0 20px rgba(34,197,94,.1);
}

/* --- Confetti --- */
.training-complete-flash {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    display: none;
}
.training-complete-flash.active { display: block; }

.confetti-particle {
    position: absolute;
    top: -10px;
    width: 8px;
    height: 8px;
    border-radius: 2px;
    animation: confetti-fall ease-out forwards;
}
@keyframes confetti-fall {
    0% { transform: translateY(0) rotate(0deg) scale(1); opacity: 1; }
    100% { transform: translateY(100vh) rotate(720deg) scale(0.3); opacity: 0; }
}

/* --- Start Screen / Gameover --- */
.training-start-screen,
.training-gameover {
    text-align: center;
    padding: 2rem 1rem;
}

.gameover-close-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    color: rgba(255,255,255,.5);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 50%;
    transition: color .2s, background .2s;
}
.gameover-close-btn:hover {
    color: #fff;
    background: rgba(255,255,255,.15);
}

.training-start-screen h3,
.training-gameover h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    margin: 0 0 0.5rem;
}

.training-start-screen p {
    color: rgba(255,255,255,.6);
    margin: 0 0 1.25rem;
}

.start-screen-icon,
.gameover-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.speed-time-options {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.speed-time-btn {
    padding: 0.6rem 1.5rem;
    border-radius: 10px;
    border: 2px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.06);
    color: rgba(255,255,255,.7);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all .2s;
}
.speed-time-btn:hover { background: rgba(255,255,255,.1); color: #fff; }
.speed-time-btn.active {
    border-color: var(--primary, #3b82f6);
    background: rgba(59,130,246,.15);
    color: #fff;
}

.training-start-btn {
    padding: 0.85rem 2.5rem;
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 800;
    cursor: pointer;
    transition: all .2s;
    box-shadow: 0 4px 16px rgba(34,197,94,.3);
}
.training-start-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(34,197,94,.4);
}

.speed-best-display {
    margin-top: 1rem;
    color: rgba(255,255,255,.5);
    font-weight: 600;
}

.gameover-score {
    font-size: 4rem;
    font-weight: 900;
    color: #22c55e;
    line-height: 1;
    margin: 0.5rem 0 0.25rem;
}

.gameover-label {
    color: rgba(255,255,255,.5);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.gameover-best {
    color: rgba(255,255,255,.6);
    font-weight: 600;
    margin-bottom: 0.25rem;
}
.gameover-best.new-record {
    color: #f59e0b;
    font-size: 1.1rem;
}

.gameover-xp {
    color: #22c55e;
    font-weight: 800;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.gameover-buttons {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 1rem;
}

/* --- Responsive: stacked layout on mobile --- */
@media (max-width: 700px) {
    .training-board-layout {
        flex-direction: column;
        align-items: stretch;
    }
    .training-board {
        width: 100%;
        max-width: 500px;
        margin: 0 auto;
    }
    .training-board-wrap {
        align-self: center;
        width: 100%;
        max-width: 500px;
    }
    .training-mode-select { flex-direction: row; }
    .training-mode-card { padding: 0.75rem 0.5rem; }
    .mode-card-icon { font-size: 1.4rem; }
    .training-speed-hud { gap: 1rem; flex-wrap: wrap; }
    .training-title { font-size: 1.4rem; }

    /* Compact training when game is active on mobile */
    .training-game[style*="block"] ~ .dummy,
    .training-section {
        padding-top: 0.5rem;
        padding-bottom: 1rem;
    }
    .training-header { margin-bottom: 0.5rem; }
    .training-mode-select.hidden-mobile { display: none; }
    .training-side-panel { gap: 0.4rem; }
    .training-stat { padding: 0.35rem 0.5rem; }
    .training-stat-val { font-size: 1.1rem; }
    .training-status { padding: 0.4rem 0.75rem; font-size: 0.88rem; }
    .training-opening-info { margin-bottom: 0.25rem; }
}