/* ==========================================================================
   JEU : PATH TRACE (SPEEDRUN)
   ========================================================================== */

/* --- 1. LAYOUT PRINCIPAL --- */
.math-container.matrix-layout {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    width: 100%;
    padding: 1.5rem;
    flex: 1;
    position: relative;
    z-index: 2;
    transition: opacity 0.3s ease;
}

#game-over-overlay.visible~.math-container {
    opacity: 0;
    pointer-events: none;
}

.blurred {
    filter: blur(5px);
    opacity: 0.3;
    pointer-events: none;
}

.icon-btn,
.settings-btn,
.icon-btn svg,
.settings-btn svg,
.back-btn,
.back-btn svg {
    transition: none !important;
    animation: none !important;
}

/* --- 2. HEADER & TIMER --- */
.game-header {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0;
    margin-bottom: 0;
    flex-shrink: 0;
}

.score-box {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    width: 72px !important;
    min-width: 72px !important;
    height: 72px !important;
    padding: 0 !important;
    margin: 0 !important;
    justify-self: start;
    visibility: visible !important;
}

.timer-display {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 100%;
    font-size: 2.5rem;
    min-width: 110px;
    justify-content: center;
    padding: 0 15px;
    font-family: var(--font-heading);
    font-weight: 400;
    color: var(--accent-color);
    font-variant-numeric: tabular-nums;
    justify-self: center;
}

.timer-display svg {
    width: 48px;
    height: 48px;
    stroke: none;
    overflow: visible;
}

.timer-text {
    padding-top: 8px;
    white-space: nowrap;
}

.settings-btn {
    justify-self: end;
}

/* --- 3. ESPACE DE TRAVAIL (Le centre) --- */
.workspace-container {
    flex-grow: 1;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    overflow: hidden;
    padding: 10px;
    position: relative;
    touch-action: none;
    /* Important pour intercepter les swipes/taps proprement */
}

/* --- 4. PATH TRACE SPECIFICS --- */
.path-trace-container {
    pointer-events: none;
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 4px;
    box-shadow: var(--shadow-card);
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid {
    display: grid;
    grid-template-columns: repeat(var(--grid-size, 15), var(--cell-size, 30px));
    grid-template-rows: repeat(var(--grid-size, 15), var(--cell-size, 30px));
    gap: 1px;
    background: var(--border-color);
    border: 1px solid var(--border-color);
}

.cell {
    background: var(--bg-main);
    width: var(--cell-size, 30px);
    height: var(--cell-size, 30px);
    position: relative;
    cursor: pointer;
}

.cell.path {
    background: var(--bg-main);
}

.cell.path::after {
    content: '';
    position: absolute;
    inset: 20%;
    background: var(--accent-color);
    opacity: 0.15;
    border-radius: 2px;
}

.cell.start::after {
    background: var(--accent-color);
    opacity: 0.4;
    inset: 10%;
    border-radius: 2px;
}

.cell.end::after {
    background: var(--accent-color-secondary);
    opacity: 0.4;
    inset: 10%;
    border-radius: 2px;
}

.player {
    position: absolute;
    width: calc(var(--cell-size, 30px) * 0.75);
    height: calc(var(--cell-size, 30px) * 0.75);
    background: var(--accent-color);
    border-radius: 2px;
    z-index: 10;
    transition: left 0.1s cubic-bezier(0.2, 0.8, 0.2, 1), top 0.1s cubic-bezier(0.2, 0.8, 0.2, 1);
    pointer-events: none;
}

.player.error {
    background: var(--accent-color-secondary);
    transform: scale(1.2);
}

/* --- 5. MOBILE D-PAD --- */
.mobile-dpad {
    display: none;
    grid-template-columns: repeat(3, 60px);
    grid-template-rows: repeat(2, 60px);
    gap: 8px;
    justify-content: center;
    margin: 10px 0;
    flex-shrink: 0;
    z-index: 10;
}

.dpad-btn {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    touch-action: none;
    /* Empêche le zoom/scroll au tap */
    -webkit-tap-highlight-color: transparent;
    transition: background 0.1s, color 0.1s, border-color 0.1s, transform 0.05s;
}

.dpad-btn svg {
    width: 32px;
    height: 32px;
    pointer-events: none;
}

@media (hover: none) {
    .dpad-btn:active {
        background: var(--accent-color);
        color: var(--bg-main);
        border-color: var(--accent-color);
        transform: scale(0.95);
    }
}

.dpad-up {
    grid-column: 2;
    grid-row: 1;
}

.dpad-left {
    grid-column: 1;
    grid-row: 2;
}

.dpad-down {
    grid-column: 2;
    grid-row: 2;
}

.dpad-right {
    grid-column: 3;
    grid-row: 2;
}

/* --- 6. ACTIONS (FOOTER JEU) --- */
.game-actions-row {
    padding: 0;
    margin-top: auto;
    flex-shrink: 0;
    width: 100%;
    display: flex;
    align-items: center;
}

html.global-opaque .path-trace-container {
    background-color: var(--bg-main);
}

html.global-opaque .cell {
    background-color: var(--card-bg);
}

/* ==========================================================================
   8. PARAMÈTRES SPÉCIFIQUES & RÉSULTATS
   ========================================================================== */
.mode-switch-wrapper {
    display: flex;
    position: relative;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 4px;
    margin-bottom: 1.5rem;
}

.mode-switch-wrapper input[type="radio"] {
    display: none;
}

.mode-switch-wrapper label {
    flex: 1;
    text-align: center;
    padding: 10px 0;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    z-index: 2;
    margin: 0;
    transition: color 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.mode-switch-wrapper input:checked+label {
    color: var(--text-primary);
}

.mode-slider {
    position: absolute;
    top: 4px;
    bottom: 4px;
    width: calc(50% - 4px);
    background-color: var(--card-bg);
    border-radius: 6px;
    z-index: 1;
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.mode-switch-wrapper input[value="sandbox"]:checked~.mode-slider {
    transform: translateX(100%);
}

.input-select,
select {
    background-color: var(--bg-main);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 8px;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.95rem;
    cursor: pointer;
    outline: none;
    width: auto;
    min-width: 140px;
    max-width: 200px;
    text-align: center;
    text-align-last: center;
}

select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.results-view {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.results-view.hidden {
    display: none !important;
}

#game-over-overlay .overlay-content {
    justify-content: center;
    gap: 1.5rem;
}

.centered-score-item {
    text-align: center;
    margin-bottom: 3rem;
}

.centered-score-item .res-label {
    font-size: 1.2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.7;
    display: block;
    margin-bottom: 0.8rem;
}

.big-score-container {
    display: flex;
    align-items: baseline;
    justify-content: center;
    position: relative;
}

#results-ranked .res-value.big,
#results-sandbox .res-value.big {
    font-size: 5.5rem;
    font-weight: 700;
    line-height: 1;
    font-family: var(--font-heading);
}

.score-unit {
    font-size: 2.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-secondary);
    margin-left: 5px;
}

.distribution-chart-container {
    position: relative;
    width: 100%;
    max-width: 650px;
    height: 180px;
    margin: 1.5rem 0 2rem 0;
    border-bottom: 2px solid var(--border-color);
    cursor: crosshair;
}

.curve-svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

.hover-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--text-primary);
    transform: translateX(-50%);
    pointer-events: none;
    opacity: 0.3;
    z-index: 3;
    transition: opacity 0.2s ease;
}

.chart-tooltip {
    position: absolute;
    top: -55px;
    transform: translateX(-50%);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--text-primary);
    pointer-events: none;
    white-space: nowrap;
    z-index: 10;
    box-shadow: var(--shadow-card);
    text-align: center;
    line-height: 1.4;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.hover-line.hidden,
.chart-tooltip.hidden {
    opacity: 0 !important;
    visibility: hidden !important;
}

.score-marker {
    position: absolute;
    top: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: translateX(-50%);
    pointer-events: none;
    transition: left 0.5s ease-out;
}

.marker-line {
    width: 2px;
    height: 100%;
    border-left: 2px dashed currentColor;
}

.marker-label {
    position: absolute;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    white-space: nowrap;
}

.marker-current {
    color: var(--accent-color);
    z-index: 2;
}

.marker-current .marker-label {
    bottom: 100%;
    margin-bottom: 5px;
    background: var(--bg-main);
    border: 1px solid currentColor;
}

.marker-best {
    color: var(--text-tertiary);
    z-index: 1;
    opacity: 1;
}

.marker-best .marker-label {
    top: 100%;
    margin-top: 5px;
    color: var(--text-secondary);
}

/* --- Stats Sandbox --- */
.sandbox-stats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin: 1.5rem 0 2rem 0;
    width: 100%;
    max-width: 600px;
}

.stat-box-small {
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 12px 20px;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 120px;
}

.stat-title {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
    text-align: center;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* --- Graphique en Barres Sandbox --- */
.history-chart {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 16px;
    height: 120px;
    width: max-content;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 60px;
    border-bottom: 2px solid var(--border-color);
    overflow-x: auto;
    scrollbar-width: none;
}

.history-chart::-webkit-scrollbar {
    display: none;
}

.history-bar-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    height: 100%;
    position: relative;
    flex-shrink: 1;
}

.history-bar {
    width: 45px;
    background-color: var(--accent-color);
    opacity: 0.8;
    border-radius: 6px 6px 0 0;
    position: relative;
    transition: none !important;
}

.bar-label {
    font-size: 0.85rem;
    font-family: var(--font-body);
    color: var(--text-primary);
    margin-bottom: 6px;
    font-weight: 600;
}

.bar-index {
    position: absolute;
    top: 100%;
    margin-top: 6px;
    font-size: 0.8rem;
    font-family: var(--font-heading);
    color: var(--text-secondary);
}

#restart-btn {
    margin-top: 2rem;
}

/* Bouton de sortie du mode plein écran iOS */
.exit-fs-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: none;
    padding: 8px;
    z-index: 10000;
    transition: color var(--transition-fast);
}

.exit-fs-btn svg {
    width: 32px;
    height: 32px;
}

.exit-fs-btn:hover {
    color: var(--accent-color-secondary);
}

.ios-fullscreen .exit-fs-btn {
    display: block !important;
}

/* ==========================================================================
   7. RESPONSIVE (L'AJUSTEMENT MOBILE GLOABLE)
   ========================================================================== */
.game-page .main-content {
    display: flex;
    flex-direction: column;
}

.game-board {
    flex: 1 0 auto;
    display: flex;
    flex-direction: column;
    min-height: 600px;
    margin-bottom: 0 !important;
}

#game-over-overlay {
    overflow-y: auto;
}

#game-over-overlay .overlay-content {
    height: auto;
    min-height: 100%;
    padding: 4rem 0;
}

@media (max-width: 900px) {
    .math-container.matrix-layout {
        padding: 0.75rem;
    }
}

@media (max-width: 700px) {
    .score-box {
        width: 60px !important;
        min-width: 60px !important;
        height: 60px !important;
        font-size: 1.4rem !important;
    }

    .game-actions-row {
        position: absolute;
        bottom: 1.5rem;
        left: 0;
        right: 0;
        padding: 0 1.5rem;
        margin: 0 !important;
        width: 100%;
        display: flex;
        align-items: center;
        pointer-events: none;
        z-index: 101;
        gap: 12px;
    }

    .game-actions-row button {
        pointer-events: auto;
    }

    .icon-btn {
        width: 60px !important;
        height: 60px !important;
    }

    .icon-btn svg {
        width: 32px !important;
        height: 32px !important;
    }



    #results-ranked .res-value.big,
    #results-sandbox .res-value.big {
        font-size: 4.5rem;
    }

    .distribution-chart-container {
        height: 140px;
        margin-top: 1.5rem;
        margin-bottom: 2.5rem;
    }

    .sandbox-stats {
        gap: 0.5rem;
        margin: 1.5rem 0 2rem 0;
        flex-direction: column;
        align-items: center;
    }

    .stat-box-small {
        padding: 10px;
        min-width: 100px;
    }

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

    .history-chart {
        gap: 8px;
        height: 100px;
        padding: 0 40px;
    }

    .history-bar {
        width: 35px;
    }

    .bar-label {
        font-size: 0.75rem;
    }

    #restart-btn {
        margin-top: 1rem;
    }

    .math-container.matrix-layout {
        position: relative !important;
        padding: 0.5rem;
        padding-bottom: 1rem !important;
    }

    body.game-page {
        overscroll-behavior: none;
    }

    #settings-panel {
        touch-action: auto;
        overscroll-behavior: contain;
    }

    .game-page .main-content {
        display: flex !important;
        flex-direction: column !important;
        justify-content: flex-start !important;
        height: auto !important;
        min-height: calc(100svh - 80px) !important;
        padding-top: 80px !important;
        padding-bottom: 0 !important;
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    .game-board {
        flex: 1 1 100% !important;
        display: flex !important;
        flex-direction: column !important;
        height: auto !important;
        min-height: calc(100svh - 80px) !important;
        max-height: none !important;
        margin: 0 !important;
        border-radius: 0;
    }

    .mobile-dpad {
        display: grid;
        position: relative !important;
        bottom: auto !important;
        left: auto !important;
        transform: none !important;
        margin: 0 auto 0.5rem auto !important;
        z-index: 100;
    }

    .workspace-container {
        padding: 5px;
    }

    #game-over-overlay {
        overflow-y: auto !important;
    }

    #game-over-overlay .overlay-content {
        height: auto !important;
        min-height: 100% !important;
        padding: 4rem 0 3rem 0 !important;
        justify-content: center !important;
        gap: 2.5rem !important;
    }

    .game-page .game-board:fullscreen .math-container,
    .ios-fullscreen .math-container {
        padding-top: 1.5rem !important;
        padding-bottom: 1.5rem !important;
    }

    .game-board:fullscreen .workspace-container {
        width: 100% !important;
        height: auto !important;
        max-width: 100% !important;
        max-height: 100% !important;
        transform: none !important;
        align-content: center !important;
    }

    .game-board:fullscreen .math-container.matrix-layout {
        transform: none !important;
        padding: 0.5rem !important;
        padding-bottom: 1rem !important;
        height: 100% !important;
        max-height: 100vh !important;
    }
}

/* ==========================================================================
   8. FALLBACK PLEIN ECRAN
   ========================================================================== */
.game-board:fullscreen {
    width: 100vw !important;
    height: 100vh !important;
    max-width: none !important;
    max-height: none !important;
    border-radius: 0 !important;
    border: none !important;
    background-color: var(--bg-main);
    display: flex !important;
    flex-direction: column !important;
}

.ios-fullscreen {
    position: fixed !important;
    inset: 0 !important;
    width: 100vw !important;
    height: 100dvh !important;
    max-width: none !important;
    max-height: none !important;
    z-index: 9999 !important;
    border-radius: 0 !important;
    border: none !important;
    background-color: var(--bg-main) !important;
    display: flex !important;
    flex-direction: column !important;
}

.new-record,
#new-record-msg {
    color: var(--record-color, #FFA914) !important;
}

.new-record svg {
    color: var(--record-color, #FFA914) !important;
}