/* =========================================
   MUSICAS.CSS - Cards e Painel Interno
   ========================================= */

/* Painel de Controle (Botões Tocar Tudo / Criar Playlist) */
.playlist-controls { 
    display: flex; align-items: center; justify-content: center; gap: 15px; flex-wrap: wrap; 
    margin-bottom: 25px; padding: 20px; 
    background: rgba(11, 16, 19, 0.5); border: 1px solid var(--line); border-radius: 8px; 
}
.control-group h3 { margin-right: 10px; font-size: 14px; color: var(--muted); text-transform: uppercase; display: inline-block;}

.btn-ctrl, .btn-action, .btn-clear { 
    padding: 10px 20px; border-radius: 4px; font-weight: bold; text-transform: uppercase; 
    cursor: pointer; transition: transform 0.2s, opacity 0.2s, border-color 0.2s; 
}
.btn-ctrl { background: #000; border: 1px solid var(--line); color: var(--muted); }
.btn-action { background: var(--neon-green); color: #000; border: none; border-radius: 20px; }
.btn-clear { background: transparent; border: 1px solid #ff4444; color: #ff4444; }
.btn-ctrl:hover { transform: scale(1.05); border-color: var(--gold); }
.btn-ctrl.active { background: var(--gold); color: #000; border-color: var(--gold); }

/* Grid das Classes */
.classes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; padding: 10px; }

.class-card { 
    position: relative; height: 280px; background: #0b1013; 
    border: 1px solid var(--line); border-radius: 4px; overflow: hidden; 
    cursor: pointer; transition: transform 0.3s ease, border-color 0.3s ease; 
}
.class-card:hover { transform: translateY(-5px); border-color: var(--gold); }

/* Estados Visuais (Usados pelo JS para pintar os cards) */
.class-card.selected { border-color: #ffd700 !important; transform: scale(1.02); }
.class-card.playing-active { border: 3px solid #53fc18 !important; box-shadow: 0 0 15px #53fc18; transform: scale(1.05); }
.class-card.playing-paused { border: 3px solid #ff0000 !important; box-shadow: 0 0 15px #ff0000; }

/* Imagem e Hover */
.card-img { 
    width: 100%; height: 100%; background-size: cover; background-position: center; 
    transition: transform 0.5s ease, filter 0.3s ease; filter: grayscale(80%); 
}
.class-card:hover .card-img, .class-card.playing-active .card-img { transform: scale(1.1); filter: grayscale(0%); }

.card-img .overlay { 
    position: absolute; inset: 0; background: rgba(0,0,0,0.4); 
    display: flex; align-items: center; justify-content: center; 
    opacity: 0; transition: opacity 0.3s ease; font-size: 3rem; color: var(--gold); 
}
.class-card:hover .card-img .overlay, .class-card.playing-active .card-img .overlay { opacity: 1; }

/* Informações do Card */
.card-info { 
    position: absolute; bottom: 0; left: 0; width: 100%; padding: 15px; 
    background: linear-gradient(0deg, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.7) 70%, transparent 100%); 
    color: var(--text); transform: translateY(10px); transition: transform 0.3s ease; z-index: 2; 
}
.class-card:hover .card-info, .class-card.playing-active .card-info { transform: translateY(0); }
.card-info h2 { margin: 0 0 4px 0; color: var(--gold2); font-size: 14px; text-transform: uppercase; }
.card-info p { margin: 0; font-size: 11px; color: var(--muted); }

.select-overlay { 
    position: absolute; top: 10px; right: 10px; width: 24px; height: 24px; 
    background: var(--gold); border-radius: 50%; display: flex; align-items: center; justify-content: center; 
    color: #000; font-size: 14px; z-index: 10; opacity: 0; transform: scale(0); transition: all 0.2s; 
}
.class-card.selected .select-overlay { opacity: 1; transform: scale(1); }