/* Variáveis CSS */
:root {
    --play-button-bg-color: #28a745; /* Cor verde para o botão de play */
    --primary-text-color: #1c1e21;
    --secondary-text-color: #606770;
    --background-color: #f0f2f5;
    --card-background-color: #ffffff;
    --border-color: #dddfe2;
    --shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
}

/* Geral: Reset básico e estilo do corpo */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* Espaço entre header, app-container e footer */
    align-items: center;
    padding: 0; /* Remover padding do body para header e footer ocuparem 100% */
    background-color: var(--background-color);
    color: var(--primary-text-color);
    min-height: 100vh;
    box-sizing: border-box;
    margin: 0;
}

/* --- Header --- */
.main-header {
    width: 100%;
    background-color: var(--card-background-color);
    box-shadow: var(--shadow);
    padding: 10px 20px;
    margin-bottom: 20px; /* Espaço entre header e app-container */
}

.header-content {
    max-width: 1200px; /* Mesma largura máxima do app-container */
    margin: 0 auto; /* Centraliza o conteúdo do header */
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap; /* Permite que os itens quebrem em telas pequenas */
}

.radio-logo-link {
    display: flex; /* Para alinhar a imagem, se houver texto ao lado */
    align-items: center;
}

.radio-logo {
    height: 100px; /* Altura mínima da logo */
    width: auto;
    display: block;
}

.menu-toggle {
    display: none; /* Oculta o botão de menu por padrão em telas grandes */
    background: none;
    border: none;
    font-size: 1.8em;
    cursor: pointer;
    color: var(--primary-text-color);
}

.main-nav {
    display: flex;
    gap: 20px;
}

.main-nav a {
    color: var(--secondary-text-color);
    text-decoration: none;
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 5px;
    transition: background-color 0.2s ease;
}

.main-nav a:hover {
    background-color: #e9ecef;
    color: var(--primary-text-color);
}

.main-nav a .fab {
    margin-right: 5px;
}

/* --- Footer --- */
.main-footer {
    width: 100%;
    padding: 15px 20px;
    text-align: center;
    font-size: 0.9em;
    color: var(--secondary-text-color);
    background-color: var(--card-background-color);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05); /* Sombra para destacar o footer */
    margin-top: 20px; /* Espaço entre app-container e footer */
}

/* --- App Container (conteúdo principal) --- */
.app-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    width: calc(100% - 40px); /* Ocupa a largura total menos o padding do body */
    max-width: 1200px; /* Largura máxima para telas muito grandes */
    justify-content: center;
    align-items: flex-start;
    padding: 20px 0; /* Padding interno para o app-container */
}

/* Estilos do Container do Player (largura fixa) */
.player-container {
    position: relative;
    background: var(--card-background-color);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    width: 340px; /* Largura fixa para o player */
    flex-shrink: 0;
    box-sizing: border-box;
    overflow: hidden;
}

/* Capa do Álbum */
.album-art {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
    border-radius: 8px;
    margin-bottom: 15px;
    display: none;
    object-fit: cover;
    background-color: #e0e0e0;
}

/* Informações da Música */
.track-info {
    min-height: 50px;
    margin-bottom: 15px;
}
.track-info h3 {
    margin: 0;
    font-size: 1.2em;
    font-weight: 600;
    color: var(--primary-text-color);
}
.track-info p {
    margin: 5px 0 0;
    color: var(--secondary-text-color);
    font-size: 1em;
}

/* Controles de Áudio */
.audio-player {
    margin-top: 15px;
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
}
.controls {
    display: flex;
    justify-content: space-around;
    align-items: center;
}
.controls button {
    background-color: transparent;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
    transition: transform 0.1s ease;
}
.controls button:active {
    transform: scale(0.9);
}
.controls button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Botão de Play/Pause redimensionado e redondo */
#play-pause-btn.round-button {
    font-size: 30px; /* Tamanho do ícone */
    width: 60px;
    height: 60px;
    border-radius: 50%; /* Mantém a área de clique redonda */
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: transparent; /* Fundo transparente */
    border: none; /* Sem borda */
    color: var(--primary-text-color); /* Cor do ícone (para ser visível no fundo claro) */
    box-shadow: none; /* Sem sombra */
    transition: transform 0.1s ease;
}

#play-pause-btn.round-button:hover {
    background-color: rgba(0, 0, 0, 0.05); /* Um leve fundo no hover para indicar interatividade */
    transform: scale(1.1); /* Efeito sutil no hover */
}

#play-pause-btn.round-button:active {
    transform: scale(0.95);
}


/* Controle de Volume */
.volume-container {
    display: flex;
    align-items: center;
    color: var(--secondary-text-color);
}
#volume-slider {
    cursor: pointer;
    width: 80px;
    margin-left: 8px;
}

/* Status da Transmissão */
#stream-status {
    text-align: center;
    margin-top: 10px;
    font-size: 0.8em;
    font-weight: bold;
    padding: 4px 10px;
    border-radius: 12px;
    display: inline-block;
    transition: background-color 0.3s ease, color 0.3s ease;
}
.status-offline { background-color: #ffcdd2; color: #c62828; }
.status-online { background-color: #c8e6c9; color: #2e7d32; }
.status-loading { background-color: #fff9c4; color: #f57f17; }

/* Aviso de Desmutar (para autoplay) */
#unmute-notice {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
    z-index: 10;
    opacity: 1;
    transition: opacity 0.5s ease;
}
#unmute-notice.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Container para Histórico, Curtidas e Anúncio (ocupa o espaço restante) */
.side-content {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    flex-grow: 1;
    max-width: calc(100% - 340px - 20px);
    min-width: 300px;
}

/* Estilos gerais para Sidebars (Histórico, Curtidas e Anúncio) */
.history-sidebar,
.liked-songs-sidebar,
.adsense-banner-container {
    background: var(--card-background-color);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    box-sizing: border-box;
}

/* Estilos específicos para o banner AdSense */
.adsense-banner-container {
    flex-basis: 100%;
    min-width: 300px;
    margin-top: 0;
}
.adsense-banner-container h2 {
    font-size: 1.1em;
    text-align: center;
    margin-top: 0;
    margin-bottom: 15px;
    color: var(--primary-text-color);
}

/* Estilos específicos para o histórico e as músicas curtidas */
.history-sidebar,
.liked-songs-sidebar {
    flex: 1;
    min-width: 300px;
    max-width: 400px;
}

.history-sidebar h2,
.liked-songs-sidebar h2 {
    font-size: 1.1em;
    text-align: center;
    margin-top: 0;
    margin-bottom: 15px;
    color: var(--primary-text-color);
}

#history-list,
#liked-songs-list {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
    max-height: 400px;
    overflow-y: auto;
}
#history-list li,
#liked-songs-list li {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding: 10px 0;
}
#history-list li:last-child,
#liked-songs-list li:last-child {
    border-bottom: none;
}
#history-list img,
#liked-songs-list img {
    width: 50px;
    height: 50px;
    border-radius: 6px;
    margin-right: 15px;
    object-fit: cover;
    background-color: #e0e0e0;
}
#history-list .song-details h4,
#liked-songs-list .song-details h4 {
    margin: 0;
    font-size: 0.9em;
    font-weight: 600;
}
#history-list .song-details p,
#liked-songs-list .song-details p {
    margin: 3px 0 0;
    font-size: 0.8em;
    color: var(--secondary-text-color);
}

/* Estilo específico para o botão de remover das curtidas */
.remove-like-btn {
    margin-left: auto;
    font-size: 1.2em;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    color: var(--secondary-text-color);
}
.remove-like-btn:hover {
    color: #c62828;
}


/* Media Queries para Responsividade */
@media (max-width: 768px) { /* Ponto de quebra para layout de menu e colunas */
    .header-content {
        flex-direction: column; /* Empilha logo e menu */
        align-items: flex-start;
    }

    .menu-toggle {
        display: block; /* Mostra o botão de menu */
        position: absolute; /* Para posicioná-lo no canto */
        top: 25px;
        right: 20px;
    }

    .main-nav {
        flex-direction: column; /* Empilha links do menu */
        width: 100%;
        display: none; /* Oculta o menu por padrão */
        margin-top: 15px;
        background-color: var(--card-background-color);
        padding: 10px 0;
        border-radius: 8px;
    }

    .main-nav.open {
        display: flex; /* Mostra o menu quando "open" */
    }

    .main-nav a {
        padding: 10px 20px;
        border-bottom: 1px solid var(--border-color);
    }
    .main-nav a:last-child {
        border-bottom: none;
    }

    .app-container {
        flex-direction: column;
        width: 95%;
        max-width: 380px;
        align-items: center;
    }

    .player-container,
    .side-content,
    .history-sidebar,
    .liked-songs-sidebar,
    .adsense-banner-container {
        width: 100%;
        max-width: 340px;
        flex: none;
    }

    .side-content {
        flex-direction: column;
        margin-top: 20px;
    }

    .history-sidebar {
        margin-top: 0;
    }

    .liked-songs-sidebar {
        margin-top: 20px;
    }

    .adsense-banner-container {
        margin-top: 20px;
    }
}