/**
 * Matériel de manipulation virtuel — styles communs
 * Partagé par : materiel-numeration, materiel-monnaie, materiel-fractions
 * (styles des pièces spécifiques dans le CSS de chaque outil)
 */

.mn-page {
    padding: 20px 16px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.mn-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.mn-title {
    font-size: 1.6rem;
    margin: 0;
}

.mn-subtitle {
    margin: 4px 0 0;
    color: var(--text-secondary, #666);
    font-size: 0.95rem;
}

.mn-related {
    margin: 6px 0 0;
    font-size: 0.85rem;
    color: var(--text-secondary, #777);
}

.mn-related a {
    margin-right: 10px;
}

.mn-fs-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border: 2px solid var(--primary-color, #4a69bd);
    background: transparent;
    color: var(--primary-color, #4a69bd);
    border-radius: 10px;
    font-size: 1rem;
    cursor: pointer;
}

.mn-fs-btn:hover {
    background: var(--primary-color, #4a69bd);
    color: #fff;
}

.mn-main {
    display: grid;
    grid-template-columns: 270px 1fr;
    gap: 16px;
    align-items: start;
}

@media (max-width: 900px) {
    .mn-main {
        grid-template-columns: 1fr;
    }
}

/* ---- Panneau latéral ---- */

.mn-panel {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.mn-card {
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 12px;
    padding: 14px;
}

.mn-card h3 {
    margin: 0 0 10px;
    font-size: 1rem;
}

.mn-niveau-chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.mn-chip {
    padding: 8px 14px;
    border-radius: 999px;
    border: 2px solid var(--border-color, #ccc);
    background: transparent;
    color: inherit;
    font-size: 0.95rem;
    cursor: pointer;
}

.mn-chip.active {
    border-color: var(--primary-color, #4a69bd);
    background: var(--primary-color, #4a69bd);
    color: #fff;
}

.mn-palette {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.mn-palette-3 {
    grid-template-columns: 1fr 1fr 1fr;
}

.mn-add-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 10px 6px;
    border-radius: 10px;
    border: 2px solid transparent;
    background: var(--bg-secondary, #f5f6fa);
    color: inherit;
    cursor: pointer;
    font-size: 0.85rem;
}

.mn-add-btn:hover {
    border-color: var(--primary-color, #4a69bd);
}

.mn-add-btn[hidden] {
    display: none;
}

.mn-add-btn .mn-swatch {
    display: block;
    border-radius: 3px;
}

.mn-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mn-btn {
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border-color, #ccc);
    background: var(--bg-secondary, #f5f6fa);
    color: inherit;
    font-size: 0.92rem;
    cursor: pointer;
    text-align: left;
}

.mn-btn:hover:not(:disabled) {
    border-color: var(--primary-color, #4a69bd);
}

.mn-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.mn-btn-primary {
    background: var(--primary-color, #4a69bd);
    border-color: var(--primary-color, #4a69bd);
    color: #fff;
    text-align: center;
    font-weight: 600;
}

.mn-btn-danger {
    color: #c0392b;
}

.mn-hint {
    font-size: 0.8rem;
    color: var(--text-secondary, #777);
    margin: 8px 0 0;
}

/* ---- Défi ---- */

.mn-defi-target {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 10px 0;
    min-height: 56px;
}

.mn-defi-number {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: 2px;
    font-variant-numeric: tabular-nums;
}

.mn-eye-btn {
    border: none;
    background: transparent;
    font-size: 1.3rem;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
}

.mn-defi-feedback {
    min-height: 24px;
    text-align: center;
    font-weight: 600;
    font-size: 0.95rem;
}

.mn-defi-feedback.ok {
    color: #27ae60;
}
.mn-defi-feedback.ko {
    color: #c0392b;
}

/* ---- Plateau ---- */

.mn-board-wrap {
    position: relative;
}

.mn-counter {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 50;
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 12px;
    padding: 8px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.mn-counter-total {
    font-size: 1.8rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    min-width: 60px;
    text-align: right;
}

.mn-counter-decomp {
    font-size: 0.85rem;
    color: var(--text-secondary, #666);
    white-space: nowrap;
}

.mn-defi-banner {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 12px;
    padding: 8px 14px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    font-size: 1.1rem;
}

.mn-defi-banner strong {
    font-size: 1.6rem;
    font-variant-numeric: tabular-nums;
}

.mn-defi-banner .mn-btn {
    padding: 6px 12px;
    text-align: center;
}

.mn-defi-banner.mn-banner-ok {
    animation: mn-flash-ok 1s ease;
}

.mn-defi-banner.mn-banner-ko {
    animation: mn-flash-ko 1s ease;
}

@keyframes mn-flash-ok {
    0%,
    60% {
        border-color: #27ae60;
        box-shadow: 0 0 0 4px rgba(39, 174, 96, 0.35);
    }
    100% {
        border-color: var(--border-color, #e0e0e0);
    }
}

@keyframes mn-flash-ko {
    0%,
    60% {
        border-color: #c0392b;
        box-shadow: 0 0 0 4px rgba(192, 57, 43, 0.35);
    }
    100% {
        border-color: var(--border-color, #e0e0e0);
    }
}

.mn-workspace {
    position: relative;
    min-height: 68vh;
    border-radius: 14px;
    border: 2px solid var(--border-color, #d8d8d8);
    background-color: #fdfdf8;
    background-image:
        linear-gradient(rgba(74, 105, 189, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 105, 189, 0.06) 1px, transparent 1px);
    background-size: 24px 24px;
    overflow: hidden;
    touch-action: none;
}

.mn-workspace:fullscreen {
    border-radius: 0;
}

/* ---- Pièces (base commune) ---- */

.mn-piece {
    position: absolute;
    cursor: grab;
    touch-action: none;
    user-select: none;
    border-radius: 3px;
    box-sizing: border-box;
    transition:
        opacity 0.2s ease,
        transform 0.2s ease;
}

.mn-piece.dragging {
    cursor: grabbing;
    z-index: 100;
    transition: none;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.mn-piece.mn-pop {
    animation: mn-pop 0.25s ease;
}

@keyframes mn-pop {
    from {
        transform: scale(0.4);
    }
    to {
        transform: scale(1);
    }
}

.mn-piece.mn-vanish {
    opacity: 0;
    transform: scale(0.3);
    pointer-events: none;
}

/* Région live lecteur d'écran (masquée visuellement) */
#mn-live {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

/* ---- Corbeille ---- */

.mn-trash {
    position: absolute;
    bottom: 12px;
    right: 12px;
    z-index: 40;
    width: 72px;
    height: 72px;
    border-radius: 16px;
    border: 2px dashed var(--border-color, #bbb);
    background: var(--card-bg, rgba(255, 255, 255, 0.85));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--text-secondary, #888);
}

.mn-trash.mn-trash-hot {
    border-color: #c0392b;
    color: #c0392b;
    background: rgba(192, 57, 43, 0.1);
}

/* Plein écran : le conteneur global passe en fullscreen */
.mn-board-wrap:fullscreen {
    background: #fdfdf8;
    padding: 12px;
}

.mn-board-wrap:fullscreen .mn-workspace {
    min-height: calc(100vh - 24px);
}

/* ---- Dark mode (data-theme posé sur <html> par choix utilisateur) ---- */

[data-theme='dark'] .mn-page {
    --card-bg: #1e293b;
    --bg-secondary: #0f172a;
    --border-color: #334155;
    --text-secondary: #cbd5e1;
}

[data-theme='dark'] .mn-chip {
    color: #e5e7eb;
}

[data-theme='dark'] .mn-chip.active {
    color: #fff;
}

[data-theme='dark'] .mn-btn,
[data-theme='dark'] .mn-add-btn {
    color: #e5e7eb;
}

[data-theme='dark'] .mn-btn-primary {
    color: #fff;
}

[data-theme='dark'] .mn-btn-danger {
    color: #f87171;
}

[data-theme='dark'] .mn-defi-feedback.ok {
    color: #4ade80;
}

[data-theme='dark'] .mn-defi-feedback.ko {
    color: #f87171;
}

[data-theme='dark'] .mn-counter,
[data-theme='dark'] .mn-defi-banner {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* Le plateau reste volontairement clair (papier quadrillé) même en dark :
   les pièces (cubes, billets, perles…) sont conçues pour un fond clair. */
[data-theme='dark'] .mn-workspace {
    border-color: #334155;
}

[data-theme='dark'] .mn-trash {
    background: rgba(255, 255, 255, 0.85);
    color: #475569;
}