/* ============================================================
   25 – Video Mute Toggle · Lautsprecher-Overlay
   
   ARCHITEKTUR:
   - Schwebendes Lautsprecher-Icon unten rechts im Video-Container
   - Zwei States: .is-muted (durchgestrichen) / unmuted (Schallwellen)
   - Glasmorphismus-Background für Premium-Luxus-Look
   - Smooth Hover/Active-Transitions
   - Mobile-touch-optimierte Trefferzone (min 2.75rem × 2.75rem)
   ============================================================ */

/* === MUTE TOGGLE BUTTON === */
.video-mute-toggle {
    position: absolute;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(0.5rem);
    -webkit-backdrop-filter: blur(0.5rem);
    cursor: pointer;
    transition: background 0.3s ease, transform 0.25s ease, opacity 0.3s ease;
    opacity: 0.75;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

.video-mute-toggle:hover {
    background: rgba(0, 0, 0, 0.65);
    opacity: 1;
    transform: scale(1.08);
}

.video-mute-toggle:active {
    transform: scale(0.95);
}

/* === SVG ICON === */
.video-mute-toggle svg {
    width: 1.25rem;
    height: 1.25rem;
    fill: none;
    stroke: #fff;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: stroke 0.3s ease;
}

/* Goldener Akzent beim Hover */
.video-mute-toggle:hover svg {
    stroke: var(--gold-accent);
}

/* === STATE: Unmuted · Schallwellen sichtbar === */
.video-mute-toggle .mute-icon-on {
    display: block;
}

.video-mute-toggle .mute-icon-off {
    display: none;
}

/* === STATE: Muted · Durchgestrichener Lautsprecher === */
.video-mute-toggle.is-muted .mute-icon-on {
    display: none;
}

.video-mute-toggle.is-muted .mute-icon-off {
    display: block;
}

/* === RESPONSIVE: Tablet === */
@media (max-width: 64rem) {
    .video-mute-toggle {
        bottom: 1rem;
        right: 1rem;
        width: 2.5rem;
        height: 2.5rem;
    }

    .video-mute-toggle svg {
        width: 1.1rem;
        height: 1.1rem;
    }
}

/* === RESPONSIVE: Mobile === */
@media (max-width: 48rem) {
    .video-mute-toggle {
        bottom: 0.75rem;
        right: 0.75rem;
        width: 2.25rem;
        height: 2.25rem;
    }

    .video-mute-toggle svg {
        width: 1rem;
        height: 1rem;
    }
}