/* read-aloud.css — barra di controllo "Leggi ad alta voce" (self-contained).
   Barra flottante in basso al centro; usa le variabili del tema di app.css. */

.ra-bar {
    position: fixed;
    left: 50%;
    bottom: 20px;
    transform: translateX(-50%);
    z-index: 55;                 /* sotto ai toast (60), sopra al viewer */

    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;

    background: var(--panel, #fff);
    color: var(--text, #1b1f24);
    border: 1px solid var(--border, #d7dae0);
    border-radius: 999px;
    box-shadow: var(--shadow, 0 8px 24px rgba(0, 0, 0, .18));
    font-size: 13px;
    line-height: 1;
    animation: ra-rise .18s ease;
}

.ra-bar[hidden] { display: none; }

@keyframes ra-rise {
    from { opacity: 0; transform: translate(-50%, 8px); }
    to   { opacity: 1; transform: translate(-50%, 0); }
}

.ra-bar__icon {
    display: inline-flex;
    color: var(--accent, #2b6cff);
}
.ra-bar__icon svg { width: 20px; height: 20px; }

/* Icona "onda sonora" che pulsa mentre legge, ferma in pausa. */
.ra-bar.is-reading .ra-bar__icon { animation: ra-pulse 1.1s ease-in-out infinite; }
.ra-bar.is-paused  .ra-bar__icon { opacity: .55; }

@keyframes ra-pulse {
    0%, 100% { opacity: .55; }
    50%      { opacity: 1; }
}

.ra-bar__status {
    min-width: 78px;
    color: var(--text-dim, #6b7280);
    white-space: nowrap;
}

.ra-bar__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    padding: 0;
    border: 1px solid var(--control-border, #d7dae0);
    border-radius: 50%;
    background: var(--control-bg, #f1f3f5);
    color: var(--control-fg, #1b1f24);
    cursor: pointer;
    transition: background .12s ease, border-color .12s ease;
}
.ra-bar__btn:hover { background: var(--control-bg-hover, #e6e9ee); }
.ra-bar__btn:focus-visible {
    outline: 2px solid var(--accent, #2b6cff);
    outline-offset: 2px;
}
.ra-bar__btn svg { width: 18px; height: 18px; }

.ra-bar__rate {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--text-dim, #6b7280);
}
.ra-bar__rate select {
    border: 1px solid var(--control-border, #d7dae0);
    border-radius: 6px;
    background: var(--control-bg, #f1f3f5);
    color: var(--control-fg, #1b1f24);
    font-size: 12px;
    padding: 4px 6px;
    cursor: pointer;
}
.ra-bar__rate select:focus-visible {
    outline: 2px solid var(--accent, #2b6cff);
    outline-offset: 1px;
}

@media (max-width: 480px) {
    .ra-bar { gap: 6px; padding: 6px 10px; }
    .ra-bar__status { min-width: 0; }
    .ra-bar__rate span { display: none; }
}