/* Sistema de Abas para Playlists em Telas Menores */

#music-playlist-panel {
    --playlist-header-chip-height: 26px;
    --playlist-header-chip-radius: var(--rl-soft-radius, 8px);
    /* Mesma lógica do Menu: margem 2px no contorno; raio externo do painel 20px. */
    --playlist-header-edge: 2px;
    --playlist-header-edge-radius: 20px;
    --playlist-header-chip-pad-x: 11px;
    --playlist-header-chip-gap: 7px;
    --playlist-header-chip-accent: var(--accent-music, #0ea5e9);
    --playlist-header-chip-border: color-mix(in srgb, var(--playlist-header-chip-accent) 30%, rgba(148, 163, 184, 0.32));
    --playlist-header-chip-bg: linear-gradient(
        180deg,
        color-mix(in srgb, var(--playlist-header-chip-accent) 10%, rgba(255, 255, 255, 0.16)) 0%,
        color-mix(in srgb, var(--playlist-header-chip-accent) 15%, rgba(255, 255, 255, 0.04)) 100%
    );
    --playlist-header-chip-bg-hover: linear-gradient(
        180deg,
        color-mix(in srgb, var(--playlist-header-chip-accent) 14%, rgba(255, 255, 255, 0.2)) 0%,
        color-mix(in srgb, var(--playlist-header-chip-accent) 20%, rgba(255, 255, 255, 0.06)) 100%
    );
    --playlist-header-chip-bg-active: linear-gradient(
        180deg,
        color-mix(in srgb, var(--playlist-header-chip-accent) 20%, rgba(255, 255, 255, 0.22)) 0%,
        color-mix(in srgb, var(--playlist-header-chip-accent) 28%, rgba(255, 255, 255, 0.08)) 100%
    );
    --playlist-header-chip-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16), 0 5px 12px color-mix(in srgb, var(--playlist-header-chip-accent) 8%, transparent);
    --playlist-header-chip-shadow-active: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 6px 14px color-mix(in srgb, var(--playlist-header-chip-accent) 16%, transparent);
    --mt-fg: var(--text-secondary);
    --mt-fg-on: var(--text-primary);
    --mt-br: var(--playlist-header-chip-border);
    --mt-br-h: color-mix(in srgb, var(--playlist-header-chip-accent) 40%, rgba(148, 163, 184, 0.38));
    --mt-br-a: color-mix(in srgb, var(--playlist-header-chip-accent) 56%, rgba(148, 163, 184, 0.4));
    --mt-bg: var(--playlist-header-chip-bg);
    --mt-bg-h: var(--playlist-header-chip-bg-hover);
    --mt-bg-a: var(--playlist-header-chip-bg-active);
    --mt-sh: var(--playlist-header-chip-shadow);
    --mt-sh-h: var(--playlist-header-chip-shadow-active);
    --mt-sh-a: var(--playlist-header-chip-shadow-active);
}

body.theme-dark #music-playlist-panel {
    --mt-fg: rgba(243, 244, 246, 0.88);
    --mt-fg-on: #f9fafb;
    --mt-br-h: color-mix(in srgb, var(--playlist-header-chip-accent) 44%, rgba(255, 255, 255, 0.14));
    --mt-br-a: color-mix(in srgb, var(--playlist-header-chip-accent) 58%, rgba(255, 255, 255, 0.18));
}

.playlist-tabs {
    display: none;
    gap: 4px;
    align-items: center;
    flex-wrap: wrap;
}

/* Camada das abas primárias quando a navegação compacta estiver habilitada.
 * A composição e a visibilidade por breakpoint permanecem em responsive.css. */
.primary-panel-tabs {
    z-index: var(--rl-z-panel-raised, 5400);
}

.playlist-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--playlist-header-chip-radius, var(--border-radius-s));
    cursor: pointer;
    transition:
        background-color var(--transition-quick),
        border-color var(--transition-quick),
        box-shadow var(--transition-quick),
        color var(--transition-quick);
    position: relative;
}

.playlist-tab[data-tab="music"] {
    --playlist-header-chip-accent: var(--accent-music, #0ea5e9);
}

.playlist-tab[data-tab="announcement"] {
    --playlist-header-chip-accent: var(--accent-announcement, #22c55e);
}

.playlist-tab:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.playlist-tab.active {
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
}

.playlist-tab i {
    font-size: 0.9em;
}

.playlist-tab-content {
    display: none;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.playlist-tab-content.active {
    display: flex;
}

.primary-panel-tabs {
    display: none;
}

.primary-panel-tab {
    appearance: none;
    border: 1px solid var(--mt-br, rgba(255, 255, 255, 0.12));
    border-radius: var(--rl-soft-radius, 8px);
    background: var(--mt-bg, rgba(255, 255, 255, 0.06));
    color: var(--mt-fg, var(--text-secondary));
    box-shadow: var(--mt-sh, none);
    cursor: pointer;
    font: inherit;
    font-size: calc(var(--font-size-base) * 0.92);
    font-weight: 650;
    line-height: 1;
    min-width: 0;
    min-height: 34px;
    padding: 0 11px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    white-space: nowrap;
}

.primary-panel-tab.active {
    color: var(--mt-fg-on, var(--text-primary));
    background: var(--mt-bg-a, rgba(255, 255, 255, 0.14));
    border-color: var(--mt-br-a, rgba(255, 255, 255, 0.22));
    box-shadow: var(--mt-sh-a, none);
}

.primary-panel-tab i {
    font-size: 0.92em;
}

/* Desktop e tablet amplo: playlists independentes, sem cabeçalho de abas. */
@media (min-width: 961px) {
    .playlist-tabs {
        display: none !important;
    }

    #music-playlist-panel .playlist-tab-content[data-tab-content="music"] {
        display: flex !important;
    }

    #music-playlist-panel .playlist-tab-content[data-tab-content="announcement"] {
        display: none !important;
    }

    #announcements-playlist-panel {
        display: flex !important;
    }
}

/* <=960px: cabeçalho de abas sem contadores; mesma altura útil do rodapé. */
@media (max-width: 960px) {
    /* Evita cortar sombras/bordas (contain:paint + overflow no painel) */
    #music-playlist-panel {
        display: flex;
        flex-direction: column;
        min-height: 0;
        overflow: visible;
        contain: layout style;
    }

    /* Tokens por tema: uma série de variáveis em vez de duplicar blocos por estado */
    body:not(.theme-dark) #music-playlist-panel {
        --mt-fg: var(--text-secondary);
        --mt-fg-on: var(--text-primary);
        --mt-br: var(--playlist-header-chip-border);
        --mt-br-h: color-mix(in srgb, var(--playlist-header-chip-accent) 40%, rgba(148, 163, 184, 0.38));
        --mt-br-a: color-mix(in srgb, var(--playlist-header-chip-accent) 56%, rgba(148, 163, 184, 0.4));
        --mt-bg: var(--playlist-header-chip-bg);
        --mt-bg-h: var(--playlist-header-chip-bg-hover);
        --mt-bg-a: var(--playlist-header-chip-bg-active);
        --mt-sh: var(--playlist-header-chip-shadow);
        --mt-sh-h: var(--playlist-header-chip-shadow-active);
        --mt-sh-a: var(--playlist-header-chip-shadow-active);
    }

    body.theme-dark #music-playlist-panel {
        --mt-fg: rgba(243, 244, 246, 0.88);
        --mt-fg-on: #f9fafb;
        --mt-br: var(--playlist-header-chip-border);
        --mt-br-h: color-mix(in srgb, var(--playlist-header-chip-accent) 44%, rgba(255, 255, 255, 0.14));
        --mt-br-a: color-mix(in srgb, var(--playlist-header-chip-accent) 58%, rgba(255, 255, 255, 0.18));
        --mt-bg: var(--playlist-header-chip-bg);
        --mt-bg-h: var(--playlist-header-chip-bg-hover);
        --mt-bg-a: var(--playlist-header-chip-bg-active);
        --mt-sh: var(--playlist-header-chip-shadow);
        --mt-sh-h: var(--playlist-header-chip-shadow-active);
        --mt-sh-a: var(--playlist-header-chip-shadow-active);
    }

    /* Header cabe as abas de 26px + padding 2px (nunca comprimir as abas). */
    #music-panel-header.panel-header {
        height: auto !important;
        min-height: calc(var(--playlist-header-chip-height, 26px) + 4px) !important;
        max-height: none !important;
        padding: 0 !important;
        gap: 0;
        justify-items: start;
        align-items: center;
        overflow: visible;
    }

    #music-panel-header .playlist-tabs,
    .playlist-tabs {
        display: flex !important;
        width: auto;
        flex: 0 0 auto;
        min-width: 0;
    }

    #music-playlist-panel .panel-header-title {
        display: none;
    }

    #music-playlist-panel .panel-header {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
        grid-template-areas: "tabs";
        box-sizing: border-box;
    }

    /* Trilho à esquerda: altura travada — não usar min-height:0 / height:100%. */
    #music-playlist-panel .playlist-tabs {
        grid-area: tabs;
        display: inline-flex !important;
        flex-wrap: nowrap;
        align-items: center;
        align-self: center;
        justify-self: start;
        width: max-content;
        max-width: 100%;
        height: calc(var(--playlist-header-chip-height, 26px) + 4px) !important;
        min-height: calc(var(--playlist-header-chip-height, 26px) + 4px) !important;
        max-height: calc(var(--playlist-header-chip-height, 26px) + 4px) !important;
        margin: 0;
        padding: var(--playlist-header-edge, 2px);
        gap: var(--playlist-header-edge, 2px);
        overflow: visible;
        box-sizing: border-box;
    }

    #music-playlist-panel .playlist-tab {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        box-sizing: border-box;
        position: relative;
        isolation: isolate;
        flex: 0 0 auto;
        width: auto;
        min-width: 0;
        height: var(--playlist-header-chip-height, 26px) !important;
        min-height: var(--playlist-header-chip-height, 26px) !important;
        max-height: var(--playlist-header-chip-height, 26px) !important;
        margin: 0;
        padding: 0 10px;
        gap: 6px;
        border-radius: var(--rl-soft-radius, 8px);
        border: 1px solid var(--panel-header-btn-border, rgba(0, 0, 0, 0.08));
        background: var(--panel-header-btn-bg, rgba(255, 255, 255, 0.5));
        box-shadow: var(--panel-header-btn-shadow, none);
        color: var(--panel-header-btn-icon, var(--text-secondary));
        font-size: calc(var(--font-size-base, 1rem) * 0.82);
        font-weight: 700;
        line-height: 1;
        white-space: nowrap;
        cursor: pointer;
        -webkit-font-smoothing: antialiased;
        transition:
            transform 0.18s ease,
            box-shadow 0.2s ease,
            background 0.2s ease,
            color 0.2s ease,
            border-color 0.2s ease;
    }

    /* Aba Músicas (canto esquerdo): espelha o Menu do toolbar.
     * Sup. esq. segue o contorno do header; inf. esq. reto; lado interno soft. */
    #music-playlist-panel .playlist-tab[data-tab="music"],
    #playlistTabMusic {
        border-radius:
            calc(var(--playlist-header-edge-radius, 20px) - var(--playlist-header-edge, 2px))
            var(--rl-soft-radius, 8px)
            var(--rl-soft-radius, 8px)
            0;
    }

    #music-playlist-panel .playlist-tab::before {
        content: none;
        display: none;
    }

    #music-playlist-panel .playlist-tab:hover {
        background: var(--panel-header-btn-hover-bg, rgba(255, 255, 255, 0.8));
        color: var(--panel-header-btn-icon, var(--text-primary));
        box-shadow: var(--panel-header-btn-shadow-hover, 0 2px 4px rgba(0, 0, 0, 0.06));
        transform: translateY(-1px);
    }

    #music-playlist-panel .playlist-tab:active {
        transform: translateY(0) scale(0.98);
    }

    #music-playlist-panel .playlist-tab.active {
        color: var(--panel-header-btn-icon, var(--text-primary));
        background: var(--panel-header-btn-hover-bg, rgba(255, 255, 255, 0.8));
        box-shadow: var(--panel-header-btn-shadow-hover, 0 2px 4px rgba(0, 0, 0, 0.06));
    }

    #music-playlist-panel .playlist-tab.active[data-tab="music"] {
        color: var(--accent-music);
    }

    #music-playlist-panel .playlist-tab.active[data-tab="announcement"] {
        color: var(--accent-announcement);
    }

    #music-playlist-panel .playlist-tab i {
        font-size: 0.88em;
        line-height: 1;
    }

    #music-playlist-panel .playlist-tab:focus-visible {
        outline: 2px solid transparent;
        outline-offset: 2px;
        box-shadow:
            var(--panel-header-btn-shadow-hover, 0 2px 4px rgba(0, 0, 0, 0.06)),
            0 0 0 2px color-mix(in srgb, var(--theme-accent, #5ea4ff) 45%, transparent);
    }

    #music-playlist-panel .playlist-tab.active:focus-visible {
        color: inherit;
    }

    /* No modo de abas, a navegação é a única informação do cabeçalho.
     * Os contadores pertencem ao layout amplo e não podem disputar espaço
     * nem criar rolagem horizontal no intervalo compacto de 821–960 px. */
    #music-playlist-panel .panel-header .panel-header-meta.panel-counter-group {
        display: none;
    }

    #announcements-playlist-panel {
        display: none !important;
        visibility: hidden !important;
        pointer-events: none !important;
        max-height: 0 !important;
        min-height: 0 !important;
        overflow: hidden !important;
    }

    #music-playlist-panel .playlist-tab-content {
        display: none;
        flex-direction: column;
        flex: 1 1 auto;
        min-height: 0;
        height: 100%;
        overflow: hidden;
    }

    #music-playlist-panel .playlist-tab-content.active {
        display: flex;
    }

    #music-playlist-panel .playlist-tab-content:not(.active) {
        display: none;
        visibility: hidden;
        pointer-events: none;
    }

    #music-playlist-panel .playlist-tab-content > .playlist-scroll {
        flex: 1 1 auto;
        min-height: 0;
    }

    #music-playlist-panel .playlist-tab-content > .panel-footer {
        flex: 0 0 auto;
        margin-top: auto;
    }

    #music-playlist-panel .playlist-tab-content[data-tab-content="announcement"] [data-tab-announcement-mode] {
        min-width: 0;
    }

    #music-playlist-panel .playlist-tab-content[data-tab-content="announcement"] [data-tab-announcement-mode] .block-size-select {
        width: min(100%, 188px);
        max-width: 100%;
    }
}

@media (max-width: 1024px) and (max-height: 576px),
       (max-width: 960px) and (max-height: 540px),
       (max-width: 800px) and (max-height: 600px) {
    #music-playlist-panel .playlist-tabs {
        gap: var(--playlist-header-edge, 2px);
        padding: var(--playlist-header-edge, 2px);
    }

    #music-playlist-panel .playlist-tab {
        padding: 0 8px;
        font-size: calc(var(--font-size-base) * 0.8);
        height: var(--playlist-header-chip-height, 26px) !important;
        min-height: var(--playlist-header-chip-height, 26px) !important;
        max-height: var(--playlist-header-chip-height, 26px) !important;
    }
}

/* Só ícones nas abas em colunas muito estreitas */
@media (max-width: 380px) {
    #music-playlist-panel .playlist-tab span {
        display: none;
    }

    #music-playlist-panel .playlist-tab {
        padding: 0;
        aspect-ratio: 1 / 1;
        width: var(--playlist-header-chip-height, 26px) !important;
        height: var(--playlist-header-chip-height, 26px) !important;
        min-height: var(--playlist-header-chip-height, 26px) !important;
        max-height: var(--playlist-header-chip-height, 26px) !important;
    }
}