/* ==========================================================================
   JEU : PIANO PERFECT PITCH (STYLES SPÉCIFIQUES)
   ========================================================================== */

/* ==========================================================================
   1. LAYOUT & VISIBILITÉ
   ========================================================================== */
.bpm-container {
    width: 100%; height: 100%; padding: 1.5rem;
    display: flex; flex-direction: column; 
    justify-content: space-between; align-items: center;
    position: relative; z-index: 2;
    transition: filter 0.3s ease, opacity 0.3s ease;
    flex: 1; 
}

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

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

#status-overlay {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
    cursor: pointer;
}
#status-overlay.hidden { display: none !important; opacity: 0; }

.status-main-text {
    font-family: var(--font-heading); 
    font-size: 4rem; 
    font-weight: 500; 
    color: var(--text-primary); 
    letter-spacing: -2px; 
    line-height: 1.1; 
    transition: opacity 0.2s;
}

.status-sub-text {
    display: flex; align-items: center; justify-content: center;
    gap: 10px; margin-top: 1.5rem;
    font-family: var(--font-body); font-size: 1.1rem;
    color: var(--text-secondary); font-weight: 500;
    text-transform: uppercase; letter-spacing: 1px;
}

.status-sub-text svg {
    width: 24px; height: 24px;
    color: var(--text-primary); 
}

.game-board:fullscreen .status-main-text { font-size: 6rem; }
.game-board:fullscreen .status-sub-text { font-size: 1.5rem; margin-top: 2rem; }
.game-board:fullscreen .status-sub-text svg { width: 32px; height: 32px; }

.blurred { filter: blur(10px); opacity: 0.3; pointer-events: none; transition: filter 0.3s ease, opacity 0.3s ease; }

/* ==========================================================================
   2. ÉLÉMENTS DU JEU (HEADER & VISUALIZER)
   ========================================================================== */

.game-header {
    width: 100%;
    display: flex; 
    justify-content: space-between; 
    align-items: center;
    position: relative; 
    margin-bottom: 1rem;
}

.game-actions-row {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-top: auto;
}

#replay-btn {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    
    background-color: var(--bg-main); 
    border: 2px solid var(--border-color); 
    cursor: pointer;
    color: var(--text-secondary); 
    border-radius: var(--radius-md); 
    display: flex !important; flex-direction: row !important; flex-wrap: nowrap !important; align-items: center !important; justify-content: center !important; gap: 10px !important;
    height: 72px; width: max-content; padding: 0 24px;
    font-family: var(--font-heading); font-size: 1.1rem; font-weight: 600; text-transform: uppercase;
    white-space: nowrap; line-height: 1;
    transition: all 0.2s;
    z-index: 10;
}

#replay-btn .replay-text {
    padding-top: 3px; /* Alignement visuel spécifique à la police Rubik */
}

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

#replay-btn:hover {
    background: var(--bg-main); 
    color: var(--accent-color); 
    border-color: var(--accent-color); 
    transform: translate(-50%, calc(-50% - 2px));
}

#replay-btn svg { width: 32px; height: 32px; display: block; }

#replay-btn.playing {
    border-color: var(--accent-color); 
    color: var(--accent-color);
    animation: pulseSound 1s infinite;
}

@keyframes pulseSound { 
    0% { box-shadow: 0 0 0 0 var(--accent-glow); } 
    70% { box-shadow: 0 0 0 30px rgba(0,0,0,0); } 
    100% { box-shadow: 0 0 0 0 rgba(0,0,0,0); } 
}

#fullscreen-btn {
    margin-left: auto;
}

.score-box { 
    flex-direction: column; 
    width: 72px; 
    height: 72px;
    min-width: unset;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}
.stat-box { 
    font-family: var(--font-heading); color: var(--text-primary); 
    font-size: 1.5rem; font-weight: 500; line-height: 1; 
}


#visualizer-display {
    width: 100%;
    height: 30px;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    position: relative;
    transition: opacity 0.2s;
}

.audio-wave-container {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background-color: var(--card-bg);
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.audio-wave-container.playing {
    color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-glow);
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-md);
    border: 2px solid var(--accent-color);
    opacity: 0;
    z-index: -1;
}

.audio-wave-container.playing .pulse-ring {
    animation: pulseAnim 1.5s infinite linear;
}

@keyframes pulseAnim {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.6); opacity: 0; }
}


.feedback-text {
    margin-top: 20px;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    min-height: 2.5rem;
    opacity: 0;
    transition: opacity 0.2s;
}
.feedback-text.visible { opacity: 1; }

.health-container {
    display: flex; 
    align-items: center; 
    gap: 20px; 
    height: 100%;
    min-width: 500px;
    width: 40%;
    max-width: 800px;
    justify-content: center; 
    padding: 0px 10px; 
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.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; 
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.timer-display svg { 
    width: 48px; height: 48px; 
    stroke: none; overflow: visible; 
}
.timer-text { padding-top: 8px; white-space: nowrap; }

.heart-icon {
    height: 5.5vh; 
    width: auto;
    min-height: 40px; 
    max-height: 55px;
    overflow: visible !important;
    transition: all 0.3s;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3)); 
}

.health-bar-track {
    flex-grow: 1; 
    height: 22px; 
    background-color: var(--bg-main);
    border-radius: 4px; 
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.3); 
}

.health-bar-fill {
    height: 100%;
    background-color: var(--accent-color-secondary);
    background-image: linear-gradient(
        to bottom,
        rgba(255,255,255,0.2) 0%,
        rgba(255,255,255,0) 50%,
        rgba(0,0,0,0.1) 100%
    );
    transition: width 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

#health-text {
    font-family: var(--font-heading);
    font-size: 1.8rem; 
    font-weight: 700;
    color: var(--text-primary);
    min-width: 45px;
    font-variant-numeric: tabular-nums;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

/* ==========================================================================
   3. CLAVIER VIRTUEL
   ========================================================================== */

.keyboard-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    flex-grow: 1;
    z-index: 5;
}

.keys-container {
    pointer-events: auto;
    position: relative;
    display: flex;
    width: 100%;
    max-width: 650px;
    height: 240px;
    background: #111;
    border-radius: 8px;
    padding: 10px;
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-card);
    transition: max-width 0.3s ease, height 0.3s ease;
}
html.global-opaque .keys-container { background: var(--card-bg); }

.keys-container.disabled {
    opacity: 0.7;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.white-key {
    flex: 1;
    background: #fdfdfd;
    border: 1px solid #ccc;
    border-radius: 0 0 6px 6px;
    color: #333;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 15px;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: background 0.1s, transform 0.1s;
    margin: 0 1px;
}

.white-key:hover {
    background: #e8e8e8;
}

.white-key:active {
    background: #e0e0e0;
    transform: scale(0.98);
}

.black-key {
    position: absolute;
    top: 10px; /* same as padding of container */
    width: calc((100% - 20px) / 7 * 0.65);
    height: 60%;
    background: #222;
    border: 1px solid #111;
    border-radius: 0 0 6px 6px;
    color: #fff;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.8rem;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 10px;
    cursor: pointer;
    z-index: 2;
    box-shadow: 0 3px 5px rgba(0,0,0,0.5);
    transition: background 0.1s, transform 0.1s;
}

.black-key:hover {
    background: #3a3a3a;
}

.black-key:active {
    background: #444;
    transform: scale(0.98);
}

/* Positions for black keys based on 7 white keys */
.cs { left: calc(10px + (100% - 20px) / 7 * 1 - ((100% - 20px) / 7 * 0.65) / 2); }
.ds { left: calc(10px + (100% - 20px) / 7 * 2 - ((100% - 20px) / 7 * 0.65) / 2); }
.fs { left: calc(10px + (100% - 20px) / 7 * 4 - ((100% - 20px) / 7 * 0.65) / 2); }
.gs { left: calc(10px + (100% - 20px) / 7 * 5 - ((100% - 20px) / 7 * 0.65) / 2); }
.as { left: calc(10px + (100% - 20px) / 7 * 6 - ((100% - 20px) / 7 * 0.65) / 2); }

/* Flashes */
.game-board { position: relative; }
.flash-overlay::after { 
    content: ''; position: absolute; inset: 0;
    pointer-events: none; z-index: 1; border-radius: inherit; 
    animation: flashOverlayAnim 0.4s ease-out forwards;
}
.flash-success::after { background-color: var(--accent-color); }
.flash-error::after { background-color: var(--accent-secondary); }
.flash-neutral::after { background-color: var(--accent-color); }

@keyframes flashOverlayAnim { 
    0% { opacity: 0.4; } 
    100% { opacity: 0; }
}

/* ==========================================================================
   4. UI PARTAGÉE (SETTINGS, OVERLAYS)
   ========================================================================== */
.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%); }

.range-inputs.small-range { display: flex; align-items: center; gap: 8px; }
.range-inputs.small-range input { width: 80px; padding: 8px; font-size: 1rem; border-radius: 4px; border: 1px solid var(--border-color); background: var(--bg-main); color: var(--text-primary); }
.range-inputs.small-range span { font-size: 0.85rem; color: var(--text-secondary); }

/* Vues de résultats */
.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); 
}
/* GRAPHIQUE COURBE DE GAUSS */
.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; }
.axis-label { position: absolute; bottom: -25px; font-family: var(--font-body); font-size: 0.8rem; color: var(--text-secondary); }
.axis-label.left { left: 0; }
.axis-label.right { right: 0; }
.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 1rem 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); }

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

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

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

/* ==========================================================================
   5. RESPONSIVE
   ========================================================================== */

/* --- FULLSCREEN OVERRIDES --- */
@media (min-width: 701px) {
    .game-board:-webkit-full-screen .keys-container {
        max-width: 1100px;
        height: 45vh;
        max-height: 450px;
        min-height: 200px;
    }
    .game-board:fullscreen .keys-container {
        max-width: 1100px;
        height: 45vh;
        max-height: 450px;
        min-height: 200px;
    }
    .game-board.ios-fullscreen .keys-container {
        max-width: 1100px;
        height: 45vh;
        max-height: 450px;
        min-height: 200px;
    }
}

/* --- MOBILE RESPONSIVE --- */
@media (max-width: 700px) {
    .distribution-chart-container { height: 140px; margin-top: 1.5rem; margin-bottom: 2.5rem; }
    
    .score-box { 
        width: 60px !important; 
        height: 60px !important; 
        min-width: unset !important; 
        padding: 0 !important; 
    }
    .bpm-container { padding: 1.5rem; padding-bottom: 2rem; }
    
    #results-ranked .res-value.big, #results-sandbox .res-value.big { font-size: 4.5rem; }
    #restart-btn { margin-top: 1rem; }
    
    .status-main-text { font-size: 3rem; }
    .status-sub-text { font-size: 0.9rem; flex-wrap: wrap; }
    
    .timer-display { font-size: 2rem; }
    .timer-display svg { width: 40px; height: 40px; }

    .sandbox-stats { gap: 0.5rem; margin: 1.5rem 0 1rem 0; flex-direction: column; align-items: center; }
    .stat-box-small { padding: 10px; min-width: 100px; }
    .stat-value { font-size: 1.2rem; }
    .distribution-chart-container { height: 140px; margin-top: 1.5rem; margin-bottom: 2.5rem; }

    .game-page .score-box,
    .game-page .settings-btn {
        flex-shrink: 0 !important;
    }

    .game-page #health-container {
        position: static !important; 
        transform: none !important;
        flex: 1 1 0% !important; 
        min-width: 0 !important; 
        margin: 0 10px !important;
        padding: 0 !important;
        justify-content: space-between !important;
        gap: 8px !important;
    }

    .game-page #timer-display {
        position: static !important; 
        transform: none !important;
        flex: 1 1 0% !important; 
        min-width: 0 !important; 
        margin: 0 10px !important;
        padding: 0 !important;
        justify-content: center !important;
        gap: 8px !important;
    }

    .game-page .health-bar-track {
        flex: 1 1 auto !important;
        width: 100% !important;
        min-width: 50px !important; 
        height: 14px !important; 
    }

    .game-page #health-container svg {
        width: 30px !important;
        height: 30px !important;
        min-width: 30px !important;
        flex-shrink: 0 !important;
    }

    .game-page #health-text {
        font-size: 1.2rem !important;
        min-width: 30px !important; 
        text-align: right;
        flex-shrink: 0 !important;
    }

    .game-actions-row {
        display: flex !important;
        justify-content: space-between !important;
        align-items: flex-end !important;
        width: 100% !important;
        margin-top: auto !important;
    }

    .keyboard-wrapper {
        position: relative !important;
        transform: none !important; /* Suppression du scale pour max de largeur */
        width: 100% !important;
        height: 40vh !important;
        min-height: 150px !important;
        max-height: 220px !important;
        margin: auto 0 !important;
        padding: 0 5px !important; /* Très léger padding pour ne pas coller aux bords */
    }

    .keys-container {
        height: 100%;
        max-width: none;
    }

    #ingame-restart-btn, #fullscreen-btn, #replay-btn {
        height: 60px !important;
        z-index: 10 !important;
    }
    
    #ingame-restart-btn, #fullscreen-btn {
        width: 60px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
    
    #replay-btn {
        width: 60px !important;
        padding: 0 !important;
    }
    #replay-btn .replay-text {
        display: none !important;
    }
    #replay-btn svg { width: 32px !important; height: 32px !important; }
    
    #ingame-restart-btn, #fullscreen-btn {
        position: relative !important;
    }

    #ingame-restart-btn[style*="display: none"] {
        display: none !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;              
    }

    #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 .bpm-container,
    .ios-fullscreen .bpm-container {
        padding-top: 3rem !important; 
        padding-bottom: 2rem !important;
    }
}

/* ==========================================================================
   6. 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; 
}

.ios-fullscreen .exit-fs-btn { display: block !important; }
.ios-fullscreen ~ * #icon-expand { display: none !important; }
.ios-fullscreen ~ * #icon-compress { display: block !important; }

/* ==========================================================================
   AFFICHAGE DU NOUVEAU RECORD
   ========================================================================== */
.new-record, 
#new-record-msg {
    color: var(--record-color, #FFA914) !important;
}

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