/* Définition des variables CSS pour les couleurs */
:root {
    --couleur-fond-primaire: #1a1428; /* Fond légèrement éclairci */
    --couleur-fond-secondaire: #211933; /* Fond de la sidebar */
    --couleur-texte: #e5e5e5;
    --couleur-accent: #5509fb; /* Couleur principale */
    --couleur-gris-clair: #d1c8f4;
    --couleur-primaire: #6f3af5; /* Un violet plus clair pour les éléments actifs */
    --couleur-scrollbar: #342852; /* Une couleur de scrollbar plus discrète */
    --couleur-lecteur-bas: #1a1428; /* Nouvelle couleur pour la barre de lecteur */
}

/* Styles de la barre de défilement */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background-color: var(--couleur-fond-secondaire);
}

::-webkit-scrollbar-thumb {
    background-color: var(--couleur-scrollbar);
    border-radius: 10px;
    border: 3px solid var(--couleur-fond-secondaire);
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--couleur-accent);
}

/* Styles de base pour tout le document */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--couleur-fond-primaire);
    color: var(--couleur-texte);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

/* Conteneur principal de l'application */
.app {
    display: flex;
    width: 100%; /* Étend l'application sur toute la largeur sur PC */
    height: 100vh;
    max-width: none; /* Retrait de la max-width pour étendre les bords */
    background-color: var(--couleur-fond-primaire);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* Barre latérale gauche */
.sidebar {
    width: 250px;
    background-color: var(--couleur-fond-secondaire);
    padding: 1.5rem;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transition: transform 0.3s ease-in-out;
    position: relative;
    z-index: 10;
}

/* Masquage de la barre latérale sur mobile */
.sidebar.mobile-hidden {
    transform: translateX(-100%);
    position: absolute;
    left: 0;
}

.sidebar.active {
    transform: translateX(0);
}

.sidebar h2 {
    font-size: 0.9rem;
    color: var(--couleur-gris-clair);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 2rem;
    margin-bottom: 0.8rem;
    font-weight: 700;
}

.sidebar hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin: 1rem 0;
}

.sidebar .sidebar-link,
.sidebar .playlist-link {
    color: var(--couleur-gris-clair);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    transition: color 0.2s ease-in-out, background-color 0.2s ease-in-out;
    cursor: pointer;
}

.sidebar .sidebar-link i {
    width: 20px;
    text-align: center;
}

.sidebar .sidebar-link:hover,
.sidebar .sidebar-link.active,
.sidebar .playlist-link:hover,
.sidebar .playlist-link.active {
    color: var(--couleur-texte);
    background-color: rgba(255, 255, 255, 0.05);
}

.playlists-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.playlists-list a.playlist-link {
    display: block;
    gap: 0;
    font-weight: 400;
}

/* Contenu principal de l'application */
.main-content {
    flex-grow: 1;
    padding: 2rem;
    overflow-y: auto;
    background: linear-gradient(to bottom, #2a1a3a, var(--couleur-fond-primaire) 300px);
    position: relative;
    padding-bottom: 100px;
}

/* Barre de recherche et de navigation en haut */
.header {
    display: flex;
    justify-content: flex-end; /* Alignement à droite par défaut sur PC */
    align-items: center;
    margin-bottom: 2rem;
}

.search-bar {
    background-color: var(--couleur-fond-secondaire);
    border-radius: 2rem;
    display: flex;
    align-items: center;
    padding: 0.5rem 1rem;
    width: 100%;
    max-width: 400px;
}

.search-bar input {
    background: none;
    border: none;
    color: var(--couleur-texte);
    outline: none;
    width: 100%;
    font-size: 1rem;
    padding: 0.5rem;
}

/* Sections de contenu (cartes) */
.section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.section-title h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

.show-all-btn {
    color: var(--couleur-gris-clair);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease-in-out;
}

.show-all-btn:hover {
    color: var(--couleur-texte);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
}

.card {
    background-color: var(--couleur-fond-secondaire);
    border-radius: 0.5rem;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    cursor: pointer;
    transition: background-color 0.2s ease-in-out, transform 0.2s ease-in-out;
}

.card:hover {
    background-color: rgba(44, 32, 59, 0.8);
    transform: translateY(-5px);
}

.card img {
    width: 100%;
    height: auto;
    border-radius: 0.5rem;
}

.card h3 {
    font-size: 1rem;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card p {
    font-size: 0.8rem;
    color: var(--couleur-gris-clair);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Lecteur de musique en bas */
.player {
    background-color: var(--couleur-lecteur-bas); /* Nouvelle couleur */
    width: 100%;
    height: 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    box-sizing: border-box;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    bottom: 0;
    z-index: 10;
}

.player-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 250px;
}

.player-info img {
    width: 50px;
    height: 50px;
    border-radius: 0.5rem;
}

.player-info #fullscreen-btn {
    margin-left: auto;
    background: none;
    border: none;
    color: var(--couleur-texte);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.2s, transform 0.2s;
}

.player-info #fullscreen-btn:hover {
    color: var(--couleur-primaire);
    transform: scale(1.1);
}

.player-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    flex-grow: 1;
}

.player-buttons {
    display: flex;
    gap: 1.5rem;
}

.player-buttons button {
    background: none;
    border: none;
    color: var(--couleur-texte);
    cursor: pointer;
    font-size: 1.2rem;
    transition: color 0.2s;
}

.player-buttons button:hover {
    color: var(--couleur-primaire);
}

.player-buttons button.active {
    color: var(--couleur-primaire);
}

.player-progress {
    width: 100%;
    max-width: 500px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--couleur-gris-clair);
}

.progress-bar {
    width: 100%;
    height: 4px;
    background-color: var(--couleur-gris-clair);
    border-radius: 2px;
    position: relative;
    cursor: pointer;
}

.progress-bar-fill {
    width: 0%;
    height: 100%;
    background-color: var(--couleur-primaire);
    border-radius: 2px;
    transition: width 0.1s linear;
}

.progress-bar-handle {
    width: 12px;
    height: 12px;
    background-color: var(--couleur-texte);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 0;
    transform: translate(-50%, -50%);
    pointer-events: none;
    transition: transform 0.1s linear;
}

.player-volume {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 250px;
    justify-content: flex-end;
}

.player-volume i {
    cursor: pointer;
}

.player-volume .progress-bar {
    width: 100px;
}

/* Bouton de menu hamburger pour mobile */
.mobile-menu-button {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--couleur-texte);
    cursor: pointer;
    z-index: 20;
}

/* Styles pour le modal/popup */
.modal {
    display: none;
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.7);
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--couleur-fond-secondaire);
    padding: 2rem;
    border-radius: 1rem;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
    animation: fadeIn 0.3s ease-in-out;
}

.close-button {
    float: right;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--couleur-gris-clair);
    cursor: pointer;
}

.close-button:hover {
    color: var(--couleur-texte);
}

.modal h2 {
    margin-top: 0;
}

.modal input[type="text"] {
    width: 100%;
    background-color: var(--couleur-fond-primaire);
    border: 1px solid var(--couleur-gris-clair);
    color: var(--couleur-texte);
    border-radius: 0.5rem;
    padding: 0.5rem;
    box-sizing: border-box;
    margin-bottom: 1rem;
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

.modal-buttons button {
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.modal-buttons button.primary {
    background-color: var(--couleur-primaire);
    color: white;
}

.modal-buttons button.secondary {
    background-color: var(--couleur-gris-clair);
    color: var(--couleur-fond-primaire);
}

/* Style pour les boutons IA */
.ai-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    background-color: var(--couleur-accent);
    color: var(--couleur-texte);
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.2s ease-in-out;
    margin-top: 1rem;
}

.ai-button:hover {
    background-color: var(--couleur-primaire);
}

.loading-spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--couleur-accent);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Page de lecteur en plein écran */
.fullscreen-player {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, #2a1a3a, var(--couleur-fond-primaire) 50%);
    z-index: 101;
    color: white;
    text-align: center;
    padding: 2rem;
    box-sizing: border-box;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.fullscreen-player .fullscreen-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 600px;
    width: 100%;
}

.fullscreen-player #fs-album-cover {
    width: 80%;
    max-width: 400px;
    height: auto;
    border-radius: 1rem;
    margin-bottom: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.fullscreen-player h1 {
    font-size: 3rem;
    margin: 0;
}

.fullscreen-player p {
    font-size: 1.5rem;
    color: var(--couleur-gris-clair);
    margin: 0.5rem 0 3rem;
}

.fullscreen-player #close-fullscreen-btn {
    position: absolute;
    top: 2rem;
    left: 2rem;
    background: none;
    border: none;
    color: var(--couleur-texte);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.2s, transform 0.2s;
}

.fullscreen-player #close-fullscreen-btn:hover {
    color: var(--couleur-primaire);
    transform: scale(1.1);
}

.fullscreen-player .fs-controls {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

/* --- RESPONSIVE DESIGN (le plus important) --- */
@media (max-width: 1024px) {
    .app {
        border-radius: 0;
    }
}

@media (max-width: 768px) {
    body {
        overflow-x: hidden;
    }

    .app {
        flex-direction: column;
        max-width: none;
    }
    
    .sidebar {
        width: 80%;
        height: 100%;
        position: fixed;
        top: 0;
        left: 0;
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
        z-index: 10;
        box-shadow: 2px 0 5px rgba(0,0,0,0.5);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        padding: 1.5rem;
        overflow-y: auto;
        padding-bottom: 100px;
        position: relative;
    }
    
    .header {
        position: static;
        padding: 1rem 1.5rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 5;
    }

    .mobile-menu-button {
        display: block;
        margin-right: 1rem;
        position: static;
        top: auto;
        left: auto;
    }

    .search-bar {
        width: 100%;
        max-width: calc(100% - 60px); /* Laisse de l'espace pour le bouton */
        margin-right: auto;
        margin-left: 0;
        order: 2; /* Le bouton est en premier, la barre de recherche en second */
    }

    .header > *:first-child {
        order: 1; /* Le premier élément (bouton) passe à gauche */
    }
    
    .card-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }

    .player {
        flex-direction: column;
        height: auto;
        padding: 1rem;
        gap: 1rem;
        justify-content: center;
        align-items: center;
        text-align: center;
    }

    .player-info {
        width: 100%;
        justify-content: center;
        flex-direction: column;
        gap: 0.5rem;
        position: relative;
    }

    .player-info img {
        display: none;
    }
    
    .player-info #fullscreen-btn {
        margin: 0;
        position: absolute;
        right: 1rem;
        top: 1rem;
    }

    .player-controls,
    .player-volume {
        width: 100%;
        justify-content: center;
    }
    
    .player-volume {
        display: none;
    }
    
    .player-progress {
        width: 90%;
        max-width: none;
    }
    
    .fullscreen-player h1 {
        font-size: 2rem;
    }
    
    .fullscreen-player p {
        font-size: 1.2rem;
    }
}