.bdtp-workbook-video-layout {
    display: block;
    min-width: 0;
}

.bdtp-workbook-video-layout.is-video-visible {
    display: grid;
    grid-template-columns: minmax(0, 1fr) clamp(300px, 27vw, 400px);
    align-items: start;
    gap: 0;
}

.bdtp-workbook-video-layout.is-admin-video-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 34px;
    align-items: start;
    gap: 0;
}

.bdtp-workbook-video-layout.is-admin-video-layout.is-admin-video-expanded {
    grid-template-columns: minmax(0, 1fr) clamp(320px, 29vw, 440px);
}

.bdtp-workbook-video-layout > .bdtp-workbook-canvas {
    min-width: 0;
}

.bdtp-workbook-video-sidebar[hidden] {
    display: none !important;
}

.bdtp-workbook-video-sidebar {
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: calc(var(--bdtp-video-header-height, 0px) + 8px);
    align-self: start;
    height: calc(100vh - var(--bdtp-video-header-height, 0px) - 16px);
    min-height: 520px;
    padding: 18px 18px 14px;
    border-left: 1px solid #d7dce3;
    background: #f7f8fa;
    overflow-y: auto;
    z-index: 5;
}

.bdtp-workbook-video-sidebar.is-admin {
    overflow: visible;
}

.bdtp-workbook-video-sidebar.is-admin .bdtp-workbook-video-sidebar__content {
    height: 100%;
    overflow-y: auto;
    padding-right: 2px;
}

.bdtp-workbook-video-sidebar.is-admin.is-collapsed {
    width: 34px;
    height: 50px;
    min-height: 0;
    padding: 0;
    border-left: 0;
    background: transparent;
    overflow: visible;
}

.bdtp-workbook-video-sidebar.is-admin.is-collapsed .bdtp-workbook-video-sidebar__content {
    display: none;
}

.bdtp-workbook-video-sidebar-toggle {
    position: absolute;
    top: 14px;
    left: -16px;
    z-index: 8;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 44px;
    padding: 0;
    border: 1px solid #b8c0cc;
    border-radius: 16px 0 0 16px;
    background: #ffffff;
    color: #334155;
    box-shadow: 0 2px 8px rgba(15, 23, 42, .12);
    cursor: pointer;
}

.bdtp-workbook-video-sidebar-toggle span {
    display: block;
    font-size: 25px;
    line-height: 1;
    transition: transform .16s ease;
}

.bdtp-workbook-video-sidebar.is-collapsed .bdtp-workbook-video-sidebar-toggle {
    left: 1px;
    border-radius: 16px 0 0 16px;
}

.bdtp-workbook-video-sidebar.is-collapsed .bdtp-workbook-video-sidebar-toggle span {
    transform: rotate(180deg);
}

.bdtp-workbook-video-participant + .bdtp-workbook-video-participant,
.bdtp-workbook-video-program {
    margin-top: 20px;
}

.bdtp-workbook-video-participant__label {
    margin: 0 0 8px;
    font-size: 15px;
    font-weight: 700;
    color: #1f2937;
}

.bdtp-workbook-video-tile {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border: 1px solid #aeb6c2;
    border-radius: 8px;
    background: #111827;
}

.bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant--teacher .bdtp-workbook-video-tile {
    aspect-ratio: 1 / 1;
}

.bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant--student {
    width: 78%;
    margin-left: auto;
    margin-right: auto;
}

.bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant--student .bdtp-workbook-video-participant__label {
    font-size: 13px;
}

.bdtp-workbook-video-media,
.bdtp-workbook-video-media video {
    width: 100%;
    height: 100%;
}

.bdtp-workbook-video-media video {
    display: block;
    object-fit: cover;
    background: #111827;
}

.bdtp-workbook-video-tile.is-local-camera .bdtp-workbook-video-media video {
    transform: scaleX(-1);
}

.bdtp-workbook-video-tile.is-program .bdtp-workbook-video-media video {
    object-fit: contain;
    transform: none;
}

.bdtp-workbook-video-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    text-align: center;
    color: #d1d5db;
    font-size: 13px;
    pointer-events: none;
}

.bdtp-workbook-video-tile.has-video .bdtp-workbook-video-placeholder {
    display: none;
}

.bdtp-workbook-video-program__preview {
    overflow: hidden;
    border: 1px solid #aeb6c2;
    border-radius: 8px;
    background: #111827;
}

.bdtp-workbook-video-program__preview canvas {
    display: block;
    width: 100%;
    height: auto;
    max-height: 44vh;
    object-fit: contain;
    background: #111827;
}

.bdtp-workbook-video-mode-switch {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 7px;
    margin-top: 9px;
}

.bdtp-workbook-video-mode-switch button {
    min-height: 36px;
    padding: 7px 9px;
    border: 1px solid #9ca3af;
    border-radius: 7px;
    background: #ffffff;
    color: #111827;
    font: inherit;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
}

.bdtp-workbook-video-mode-switch button[aria-pressed="true"] {
    border-color: #1a73e8;
    background: #1a73e8;
    color: #ffffff;
}

.bdtp-workbook-video-mode-switch button:disabled {
    opacity: .5;
    cursor: not-allowed;
}

.bdtp-workbook-video-web-back {
    display: block;
    min-width: 78px;
    min-height: 30px;
    margin: 8px auto 0;
    padding: 5px 12px;
    border: 1px solid #9ca3af;
    border-radius: 6px;
    background: #ffffff;
    color: #111827;
    font: inherit;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
}

.bdtp-workbook-video-web-back[hidden] {
    display: none !important;
}

.bdtp-workbook-studio-runtime__meta {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #d7dce3;
    text-align: center;
}

.bdtp-workbook-studio-runtime__status {
    min-height: 17px;
    margin: 0;
    color: #4b5563;
    font-size: 11px;
    line-height: 1.35;
}

.bdtp-workbook-studio-runtime__status.is-error {
    color: #991b1b;
}

.bdtp-workbook-studio-runtime__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.bdtp-workbook-studio-runtime__edit,
.bdtp-workbook-studio-runtime__special {
    color: #2271b1;
    font-size: 11px;
    text-decoration: none;
}

.bdtp-workbook-studio-runtime__special {
    appearance: none;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    font: inherit;
    font-size: 11px;
    cursor: pointer;
}

.bdtp-workbook-studio-runtime__edit:hover,
.bdtp-workbook-studio-runtime__edit:focus-visible,
.bdtp-workbook-studio-runtime__special:hover:not(:disabled),
.bdtp-workbook-studio-runtime__special:focus-visible,
.bdtp-workbook-studio-runtime__special.is-active {
    background: transparent;
    box-shadow: none;
    color: #135e96;
    text-decoration: none;
}

.bdtp-workbook-studio-runtime__special:disabled {
    opacity: .55;
    cursor: default;
}

.bdtp-workbook-video-audio {
    width: 0;
    height: 0;
    overflow: hidden;
}

.bdtp-workbook-video-audio audio {
    width: 0;
    height: 0;
}

.bdtp-workbook-video-status {
    min-height: 20px;
    margin: 14px 0 10px;
    color: #4b5563;
    font-size: 12px;
    line-height: 1.4;
}

.bdtp-workbook-video-status.is-error {
    color: #991b1b;
}

.bdtp-workbook-video-controls {
    margin-top: auto;
    padding-top: 4px;
}

.bdtp-workbook-video-controlbar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    min-height: 58px;
}

.bdtp-workbook-video-sidebar.is-admin .bdtp-workbook-video-controlbar {
    gap: 8px;
}

.bdtp-workbook-video-device-control {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.bdtp-workbook-video-round-button {
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    color: #ffffff;
    cursor: pointer;
    box-shadow: 0 1px 2px rgba(15, 23, 42, .18);
}

.bdtp-workbook-video-round-button svg {
    width: 23px;
    height: 23px;
    fill: currentColor;
}

.bdtp-workbook-video-round-button.is-media {
    background: #1a73e8;
}

.bdtp-workbook-video-round-button.is-media.is-off {
    background: #4f74aa;
}

.bdtp-workbook-video-round-button.is-hangup {
    background: #d93025;
}

.bdtp-workbook-video-round-button.is-admin-reset {
    background: #0170b9;
    font-size: 30px;
    font-weight: 800;
    line-height: 1;
}

.bdtp-workbook-video-round-button.is-admin-reset:hover,
.bdtp-workbook-video-round-button.is-admin-reset:focus-visible {
    background: #015f9e;
}

.bdtp-workbook-video-round-button.is-admin-reset:focus-visible {
    outline: 3px solid rgba(1,112,185,.22);
    outline-offset: 2px;
}

.bdtp-workbook-video-round-button.is-admin-reset > span {
    display: block;
    transform: translateY(-1px);
}

.bdtp-workbook-video-round-button:disabled,
.bdtp-workbook-video-device-chevron:disabled {
    opacity: .45;
    cursor: not-allowed;
}

.bdtp-workbook-video-device-chevron {
    position: absolute;
    right: -8px;
    bottom: -2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    padding: 0 0 4px;
    border: 2px solid #f7f8fa;
    border-radius: 50%;
    background: #1558b0;
    color: #ffffff;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
}

.bdtp-workbook-video-device-menu {
    position: absolute;
    z-index: 20;
    left: 50%;
    bottom: 62px;
    width: 240px;
    padding: 10px;
    transform: translateX(-50%);
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 10px 30px rgba(15, 23, 42, .18);
}

.bdtp-workbook-video-device-menu[hidden] {
    display: none !important;
}

.bdtp-workbook-video-device-menu label {
    display: block;
    color: #374151;
    font-size: 12px;
    font-weight: 700;
}

.bdtp-workbook-video-device-menu select {
    box-sizing: border-box;
    width: 100%;
    min-height: 36px;
    margin-top: 5px;
    padding: 5px 7px;
    border: 1px solid #9ca3af;
    border-radius: 5px;
    background: #ffffff;
    color: #111827;
    font: inherit;
}

.bdtp-workbook-video-audio-start {
    width: 100%;
    min-height: 34px;
    margin-top: 10px;
    border: 1px solid #9ca3af;
    border-radius: 6px;
    background: #ffffff;
    color: #111827;
    cursor: pointer;
}

/* Vortrag: Das Arbeitsheft und die normale Seitenleistenoptik verschwinden.
 * Das übertragene Programmbild füllt das Fenster; die Selbstansicht liegt links unten. */
.bdtp-workbook-shell[data-video-transmission-mode="presentation"] .bdtp-workbook-header,
.bdtp-workbook-shell[data-video-transmission-mode="web"] .bdtp-workbook-header {
    display: none !important;
}

.bdtp-workbook-video-layout.is-video-visible.is-presentation-mode {
    position: fixed;
    inset: 0;
    z-index: 999999;
    display: block;
    width: 100vw;
    height: 100vh;
    background: #05070b;
}

.bdtp-workbook-video-layout.is-presentation-mode > .bdtp-workbook-canvas {
    display: none !important;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-sidebar.is-student {
    position: absolute;
    inset: 0;
    display: block !important;
    width: 100%;
    height: 100%;
    min-height: 0;
    padding: 0;
    border: 0;
    background: #05070b;
    overflow: hidden;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-sidebar__content {
    width: 100%;
    height: 100%;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-participant--teacher {
    position: absolute;
    inset: 0;
    margin: 0;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-participant--teacher .bdtp-workbook-video-participant__label {
    display: none;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-participant--teacher .bdtp-workbook-video-tile {
    width: 100%;
    height: 100%;
    aspect-ratio: auto;
    border: 0;
    border-radius: 0;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-participant--teacher video {
    object-fit: contain;
    transform: none;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-participant--student {
    position: absolute;
    z-index: 5;
    left: 18px;
    bottom: 84px;
    width: clamp(140px, 18vw, 260px);
    margin: 0;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-participant--student .bdtp-workbook-video-participant__label {
    display: none;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-participant--student .bdtp-workbook-video-tile {
    border: 1px solid rgba(255,255,255,.48);
    border-radius: 9px;
    box-shadow: 0 8px 28px rgba(0,0,0,.36);
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-status {
    position: absolute;
    z-index: 6;
    left: 18px;
    top: 18px;
    max-width: 360px;
    margin: 0;
    padding: 5px 8px;
    border-radius: 5px;
    background: rgba(0,0,0,.55);
    color: #e5e7eb;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-controls {
    position: absolute;
    z-index: 7;
    top: 50%;
    right: 14px;
    left: auto;
    bottom: auto;
    width: 68px;
    margin: 0;
    padding: 10px 9px;
    transform: translateY(-50%);
    border-radius: 34px;
    background: rgba(17,24,39,.82);
    backdrop-filter: blur(9px);
    opacity: 1;
    transition: opacity .2s ease, transform .2s ease;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-controlbar {
    flex-direction: column;
    gap: 11px;
    min-height: 0;
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-device-menu {
    right: 62px;
    left: auto;
    bottom: 50%;
    transform: translateY(50%);
}

.bdtp-workbook-video-layout.is-presentation-mode.is-controls-idle .bdtp-workbook-video-controls {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-50%) translateX(12px);
}

.bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-device-chevron {
    border-color: rgba(17,24,39,.82);
}

html.bdtp-video-presentation-active,
html.bdtp-video-presentation-active body {
    overflow: hidden !important;
}

@media (max-width: 980px) {
    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) {
        display: flex;
        flex-direction: column;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) > .bdtp-workbook-canvas {
        width: 100%;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student {
        position: static;
        order: -1;
        width: 100%;
        height: auto;
        min-height: 0;
        border-left: 0;
        border-bottom: 1px solid #d7dce3;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-participant {
        max-width: 620px;
        margin-left: auto;
        margin-right: auto;
    }

    .bdtp-workbook-video-layout.is-admin-video-layout.is-admin-video-expanded {
        grid-template-columns: minmax(0, 1fr) minmax(300px, 42vw);
    }
}

@media (max-width: 700px) {
    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-participant--student {
        left: 10px;
        bottom: 12px;
        width: 34vw;
        min-width: 120px;
    }

    .bdtp-workbook-video-layout.is-admin-video-layout.is-admin-video-expanded {
        grid-template-columns: minmax(0, 1fr) minmax(270px, 52vw);
    }
}

/* Manueller Eintritt in den Videochat. */
.bdtp-workbook-video-round-button.is-play {
    background: #188038;
}

/* Warteansicht des Users: Standbild statt Lehrer-Livevideo bis zur Freigabe. */
.bdtp-workbook-video-waiting-stage {
    position: absolute;
    inset: 0;
    z-index: 3;
    display: none;
    align-items: center;
    justify-content: center;
    background-color: #111827;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.bdtp-workbook-video-sidebar.is-student.is-awaiting-join .bdtp-workbook-video-waiting-stage {
    display: flex;
}

.bdtp-workbook-video-sidebar.is-student.is-awaiting-join .bdtp-workbook-video-participant--teacher .bdtp-workbook-video-placeholder,
.bdtp-workbook-video-sidebar.is-student.is-awaiting-join .bdtp-workbook-video-participant--teacher .bdtp-workbook-video-media {
    visibility: hidden;
}

.bdtp-workbook-video-waiting-spinner {
    width: 42px;
    height: 42px;
    box-sizing: border-box;
    border: 4px solid rgba(255, 255, 255, .38);
    border-top-color: #ffffff;
    border-radius: 50%;
    background: rgba(15, 23, 42, .24);
    box-shadow: 0 0 0 9px rgba(15, 23, 42, .18);
    animation: bdtp-video-waiting-spin .82s linear infinite;
}

@keyframes bdtp-video-waiting-spin {
    to { transform: rotate(360deg); }
}

.bdtp-workbook-video-join-panel[hidden] {
    display: none !important;
}

.bdtp-workbook-video-join-panel {
    width: 58.667%;
    margin: 10px auto 2px;
    text-align: center;
}

.bdtp-workbook-video-join-button {
    width: 100%;
    min-height: 40px;
    padding: 8px 12px;
    border: 1px solid #166534;
    border-radius: 8px;
    background: #188038;
    color: #ffffff;
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 1px 2px rgba(15, 23, 42, .12);
}

.bdtp-workbook-video-join-button:hover:not(:disabled) {
    background: #137333;
}

.bdtp-workbook-video-join-button:focus-visible {
    outline: 3px solid rgba(26, 115, 232, .28);
    outline-offset: 2px;
}

.bdtp-workbook-video-join-button:disabled {
    opacity: 1;
    border-color: #94a3b8;
    background: #cbd5e1;
    color: #475569;
    cursor: default;
    box-shadow: none;
}

.bdtp-workbook-video-join-button.is-connecting,
.bdtp-workbook-video-join-button.is-connecting:disabled {
    position: relative;
    opacity: 1;
    background: #34a853;
    border-color: #2d9248;
    color: #ffffff;
    cursor: wait;
    animation: bdtp-video-join-pulse 1.7s ease-in-out infinite;
}

.bdtp-workbook-video-join-button.is-connecting::before {
    content: "";
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-right: 8px;
    vertical-align: -2px;
    box-sizing: border-box;
    border: 2px solid rgba(255, 255, 255, .45);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: bdtp-video-join-spin .72s linear infinite;
}

@keyframes bdtp-video-join-spin {
    to { transform: rotate(360deg); }
}

@keyframes bdtp-video-join-pulse {
    0%, 100% { box-shadow: 0 1px 2px rgba(15, 23, 42, .12), 0 0 0 0 rgba(52, 168, 83, 0); }
    50% { box-shadow: 0 1px 2px rgba(15, 23, 42, .12), 0 0 0 5px rgba(52, 168, 83, .14); }
}

@media (prefers-reduced-motion: reduce) {
    .bdtp-workbook-video-join-button.is-connecting {
        animation: none;
    }

    .bdtp-workbook-video-join-button.is-connecting::before {
        animation-duration: 1.3s;
    }
}

.bdtp-workbook-video-join-status {
    min-height: 18px;
    margin-top: 6px;
    color: #475569;
    font-size: 11px;
    line-height: 1.35;
}

/* Das quadratische Lehrerbild ist im User- und Admin-Arbeitsheft gleich groß. */
.bdtp-workbook-video-layout:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant--teacher {
    width: 58.667%;
    margin-left: auto;
    margin-right: auto;
}

.bdtp-workbook-video-sidebar.is-admin .bdtp-workbook-video-program__preview {
    width: 58.667%;
    margin-left: auto;
    margin-right: auto;
    aspect-ratio: 1 / 1;
}

[data-bdtp-workbook-editor][data-video-studio-mode="presentation"] .bdtp-workbook-video-sidebar.is-admin .bdtp-workbook-video-program__preview,
[data-bdtp-workbook-editor][data-video-studio-mode="web"] .bdtp-workbook-video-sidebar.is-admin .bdtp-workbook-video-program__preview {
    width: 100%;
    aspect-ratio: 16 / 9;
}

.bdtp-workbook-video-sidebar.is-admin .bdtp-workbook-video-program__preview canvas {
    width: 100%;
    height: 100%;
    max-height: none;
    object-fit: contain;
}

/* Beitrittsanfrage des Users im Admin-Arbeitsheft. */
.bdtp-workbook-video-join-request-toast[hidden] {
    display: none !important;
}

.bdtp-workbook-video-join-request-toast {
    position: fixed;
    top: max(18px, calc(var(--bdtp-video-header-height, 0px) + 18px));
    right: 18px;
    z-index: 10040;
    width: min(330px, calc(100vw - 36px));
    box-sizing: border-box;
    padding: 14px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    background: #ffffff;
    color: #0f172a;
    box-shadow: 0 16px 36px rgba(15, 23, 42, .22);
    opacity: 0;
    transform: translateX(calc(100% + 28px));
    transition: transform .22s ease, opacity .18s ease;
}

.bdtp-workbook-video-join-request-toast.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.bdtp-workbook-video-join-request-toast__text {
    margin-bottom: 10px;
    font-size: 13px;
    font-weight: 700;
    line-height: 1.4;
}

.bdtp-workbook-video-join-request-toast__confirm {
    width: 100%;
    min-height: 36px;
    padding: 7px 10px;
    border: 1px solid #166534;
    border-radius: 7px;
    background: #188038;
    color: #ffffff;
    font: inherit;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
}

.bdtp-workbook-video-join-request-toast__confirm:disabled {
    opacity: .6;
    cursor: default;
}

/* Kompakte Studio-Schieberegler neben dem Speichern-Button.
   Grundstellung: blau. Umgeschaltete Stellung: orange. */
.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch,
.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch {
    position: relative;
    display: none;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
    height: 30px;
    min-height: 30px;
    padding: 3px;
    border: 1px solid #0170b9;
    border-radius: 999px;
    background: #0170b9;
    color: #ffffff;
    overflow: hidden;
    cursor: pointer;
    box-shadow: inset 0 1px 2px rgba(15, 23, 42, .12), 0 1px 2px rgba(15, 23, 42, .08);
    transition: border-color .16s ease, background .16s ease, box-shadow .16s ease;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch {
    width: 82px;
    min-width: 82px;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch {
    width: 62px;
    min-width: 62px;
    margin-left: 4px;
}

[data-bdtp-workbook-editor][data-is-admin="1"][data-video-sidebar-expanded="1"] .bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch,
[data-bdtp-workbook-editor][data-is-admin="1"][data-video-sidebar-expanded="1"] .bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch {
    display: inline-flex;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch.is-mac,
.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch.is-high {
    border-color: #e67e22;
    background: #e67e22;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch:hover:not(:disabled),
.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch:hover:not(:disabled) {
    border-color: #015f9e;
    background: #015f9e;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch.is-mac:hover:not(:disabled),
.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch.is-high:hover:not(:disabled) {
    border-color: #c96818;
    background: #c96818;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch:focus-visible,
.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch:focus-visible {
    outline: 3px solid rgba(26, 115, 232, .22);
    outline-offset: 2px;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch__label,
.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch__label {
    position: relative;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 22px;
    color: #ffffff;
    font-size: 10px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: .01em;
    transition: color .16s ease;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch__label {
    width: 36px;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch__label {
    width: 26px;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch__thumb,
.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch__thumb {
    position: absolute;
    z-index: 1;
    top: 3px;
    left: 3px;
    height: 22px;
    border-radius: 999px;
    background: #ffffff;
    box-shadow: 0 1px 4px rgba(15, 23, 42, .24);
    transition: transform .18s ease;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch__thumb {
    width: 36px;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch__thumb {
    width: 26px;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch .is-ext,
.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch .is-low {
    color: #0170b9;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch.is-mac .is-ext,
.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch.is-high .is-low {
    color: #ffffff;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch.is-mac .is-mac,
.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch.is-high .is-high {
    color: #d86f18;
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch.is-mac .bdtp-workbook-studio-profile-switch__thumb {
    transform: translateX(37px);
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch.is-high .bdtp-workbook-studio-resolution-switch__thumb {
    transform: translateX(27px);
}

.bdtp-workbook-toolbar .bdtp-workbook-studio-profile-switch:disabled,
.bdtp-workbook-toolbar .bdtp-workbook-studio-resolution-switch:disabled {
    opacity: .48;
    cursor: default;
}

/* Laufzeitindikatoren direkt rechts neben dem L/H-Schalter.
   Grün = sicher inaktiv, Rot = aktiv, Orange = LiveKit-Status nicht verifizierbar. */
.bdtp-workbook-toolbar .bdtp-workbook-runtime-indicator {
    display: none;
    flex: 0 0 auto;
    width: 11px;
    height: 11px;
    box-sizing: border-box;
    border: 1px solid rgba(15, 23, 42, .18);
    border-radius: 50%;
    background: #188038;
    box-shadow: 0 0 0 2px rgba(24, 128, 56, .10);
}

.bdtp-workbook-toolbar .bdtp-workbook-runtime-indicator--rendering {
    margin-left: 5px;
}

.bdtp-workbook-toolbar .bdtp-workbook-runtime-indicator--livekit {
    margin-left: 2px;
}

.bdtp-workbook-toolbar .bdtp-workbook-runtime-indicator.is-active {
    background: #b91c1c;
    box-shadow: 0 0 0 2px rgba(185, 28, 28, .12);
}

.bdtp-workbook-toolbar .bdtp-workbook-runtime-indicator.is-unknown {
    background: #d97706;
    box-shadow: 0 0 0 2px rgba(217, 119, 6, .12);
}

[data-bdtp-workbook-editor][data-is-admin="1"][data-video-sidebar-expanded="1"] .bdtp-workbook-toolbar .bdtp-workbook-runtime-indicator {
    display: inline-block;
}

.bdtp-workbook-toolbar .bdtp-workbook-livekit-stop {
    display: none;
    align-items: center;
    justify-content: center;
    width: auto;
    min-width: 38px;
    height: 24px;
    min-height: 24px;
    margin-left: 2px;
    padding: 0 7px;
    border: 1px solid #991b1b;
    border-radius: 5px;
    background: #b91c1c;
    color: #ffffff;
    font-size: 9px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: .035em;
    cursor: pointer;
}

[data-bdtp-workbook-editor][data-is-admin="1"][data-video-sidebar-expanded="1"] .bdtp-workbook-toolbar .bdtp-workbook-livekit-stop.is-visible {
    display: inline-flex;
}

.bdtp-workbook-toolbar .bdtp-workbook-livekit-stop:hover:not(:disabled) {
    border-color: #7f1d1d;
    background: #991b1b;
}

.bdtp-workbook-toolbar .bdtp-workbook-livekit-stop:focus-visible {
    outline: 3px solid rgba(185, 28, 28, .20);
    outline-offset: 2px;
}

.bdtp-workbook-toolbar .bdtp-workbook-livekit-stop:disabled {
    opacity: .55;
    cursor: default;
}

.bdtp-workbook-toolbar .bdtp-workbook-livekit-stop[hidden] {
    display: none !important;
}

@media (max-width: 700px) {
    .bdtp-workbook-video-layout:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant--teacher,
    .bdtp-workbook-video-join-panel {
        width: min(68%, 340px);
    }

    .bdtp-workbook-video-sidebar.is-admin .bdtp-workbook-video-program__preview {
        width: min(68%, 340px);
    }
}

/* Statuszeile und Pegelanzeigen des lokalen Admin-Programmaudios. */
.bdtp-workbook-video-mic-meter {
    width: 58.667%;
    margin: 8px auto 0;
    box-sizing: border-box;
}

[data-bdtp-workbook-editor][data-video-studio-mode="presentation"] .bdtp-workbook-video-mic-meter,
[data-bdtp-workbook-editor][data-video-studio-mode="web"] .bdtp-workbook-video-mic-meter {
    width: 100%;
}

.bdtp-workbook-video-mic-meter__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 4px;
    color: #475569;
    font-size: 10px;
    line-height: 1.3;
}

.bdtp-workbook-video-mic-meter__row span:first-child {
    font-weight: 700;
}

.bdtp-workbook-video-mic-meter__rail {
    position: relative;
    height: 8px;
    overflow: hidden;
    border: 1px solid #cbd5e1;
    border-radius: 999px;
    background: #e5e7eb;
}

.bdtp-workbook-video-mic-meter__rail i {
    position: absolute;
    inset: 0;
    display: block;
    transform: scaleX(0);
    transform-origin: left center;
    background: linear-gradient(90deg, #16a34a 0%, #84cc16 58%, #eab308 82%, #dc2626 100%);
    transition: transform .08s linear;
}

.bdtp-workbook-video-mic-meter.is-inactive .bdtp-workbook-video-mic-meter__rail i {
    transform: scaleX(0) !important;
}


.bdtp-workbook-video-device-restart {
    width: 100%;
    min-height: 32px;
    margin-top: 8px;
    padding: 5px 8px;
    border: 1px solid #9ca3af;
    border-radius: 5px;
    background: #f8fafc;
    color: #111827;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.bdtp-workbook-video-device-restart:hover:not(:disabled),
.bdtp-workbook-video-device-restart:focus-visible {
    border-color: #64748b;
    background: #f1f5f9;
}

.bdtp-workbook-video-device-restart:disabled {
    opacity: .45;
    cursor: not-allowed;
}


/* Mobile-/Tablet-Anpassung ausschließlich für echte Touch-Viewports.
 * Das bestehende Desktoplayout bleibt dadurch unverändert. */
@media (hover: none) and (pointer: coarse) and (orientation: portrait) and (max-width: 1024px) {
    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) {
        display: flex;
        flex-direction: column;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) > .bdtp-workbook-canvas {
        width: 100%;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student {
        position: static;
        order: -1;
        width: 100%;
        height: auto;
        min-height: 0;
        padding: 10px 12px 9px;
        border-left: 0;
        border-bottom: 1px solid #d7dce3;
        overflow: visible;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-sidebar__content {
        display: grid;
        grid-template-columns: minmax(0, 1.6fr) minmax(118px, .8fr);
        grid-template-areas:
            "teacher self"
            "join self"
            "status status"
            "controls controls";
        gap: 8px 12px;
        align-items: start;
        width: min(100%, 760px);
        margin: 0 auto;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant--teacher {
        grid-area: teacher;
        width: min(100%, 360px);
        margin: 0 auto;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant--student {
        grid-area: self;
        width: 100%;
        margin: 0;
        align-self: center;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant__label {
        margin-bottom: 5px;
        font-size: 12px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant--teacher .bdtp-workbook-video-tile {
        width: 100%;
        aspect-ratio: 1 / 1;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant--student .bdtp-workbook-video-tile {
        aspect-ratio: 4 / 3;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-join-panel {
        grid-area: join;
        width: min(100%, 360px);
        margin: 0 auto;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-status {
        grid-area: status;
        min-height: 17px;
        margin: 0;
        text-align: center;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-audio {
        display: none;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-controls {
        grid-area: controls;
        margin: 0;
        padding: 0;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-controlbar {
        gap: 12px;
        min-height: 50px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-round-button {
        width: 46px;
        height: 46px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-device-menu {
        position: fixed;
        z-index: 10050;
        left: 12px;
        right: 12px;
        bottom: max(12px, env(safe-area-inset-bottom));
        width: auto;
        max-width: 420px;
        margin: 0 auto;
        transform: none;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-participant--student {
        top: max(12px, env(safe-area-inset-top));
        right: 12px;
        bottom: auto;
        left: auto;
        width: clamp(96px, 27vw, 150px);
        min-width: 0;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-status {
        top: max(12px, env(safe-area-inset-top));
        left: 12px;
        max-width: calc(100vw - 190px);
        font-size: 11px;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-controls {
        top: auto;
        right: auto;
        bottom: max(10px, env(safe-area-inset-bottom));
        left: 50%;
        width: auto;
        padding: 8px 10px;
        transform: translateX(-50%);
        border-radius: 999px;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-controlbar {
        flex-direction: row;
        gap: 10px;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-round-button {
        width: 46px;
        height: 46px;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-device-menu {
        position: fixed;
        top: auto;
        right: 12px;
        bottom: calc(max(10px, env(safe-area-inset-bottom)) + 66px);
        left: 12px;
        width: auto;
        max-width: 420px;
        margin: 0 auto;
        transform: none;
    }

    .bdtp-workbook-video-layout.is-presentation-mode.is-controls-idle .bdtp-workbook-video-controls {
        transform: translateX(-50%) translateY(12px);
    }
}

@media (hover: none) and (pointer: coarse) and (orientation: portrait) and (max-width: 520px) {
    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student {
        padding: 8px 8px 7px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-sidebar__content {
        grid-template-columns: minmax(0, 1.7fr) minmax(104px, .8fr);
        gap: 6px 8px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-controlbar {
        gap: 9px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-round-button,
    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-round-button {
        width: 44px;
        height: 44px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-round-button svg,
    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-round-button svg {
        width: 21px;
        height: 21px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-device-chevron,
    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-device-chevron {
        right: -6px;
        width: 20px;
        height: 20px;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-controlbar {
        gap: 8px;
    }
}

@media (hover: none) and (pointer: coarse) and (orientation: landscape) and (max-width: 1024px) {
    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) {
        display: grid;
        grid-template-columns: minmax(0, 1fr) clamp(260px, 34vw, 340px);
        align-items: start;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) > .bdtp-workbook-canvas {
        width: auto;
        min-width: 0;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student {
        position: sticky;
        top: calc(var(--bdtp-video-header-height, 0px) + 4px);
        order: initial;
        width: 100%;
        height: calc(100vh - var(--bdtp-video-header-height, 0px) - 8px);
        height: calc(100dvh - var(--bdtp-video-header-height, 0px) - 8px);
        min-height: 0;
        padding: 9px 10px 8px;
        border-left: 1px solid #d7dce3;
        border-bottom: 0;
        overflow-y: auto;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant--teacher {
        width: min(54%, 180px);
        margin-left: auto;
        margin-right: auto;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant--student {
        width: min(68%, 220px);
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-participant__label {
        margin-bottom: 4px;
        font-size: 11px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-join-panel {
        width: min(68%, 220px);
        margin-top: 6px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-status {
        min-height: 16px;
        margin: 7px 0 5px;
        font-size: 11px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-controlbar {
        gap: 8px;
        min-height: 46px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-round-button,
    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-round-button {
        width: 42px;
        height: 42px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-round-button svg,
    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-round-button svg {
        width: 20px;
        height: 20px;
    }

    .bdtp-workbook-video-layout.is-video-visible:not(.is-presentation-mode) .bdtp-workbook-video-sidebar.is-student .bdtp-workbook-video-device-menu {
        right: 0;
        left: auto;
        bottom: 52px;
        width: min(240px, calc(100vw - 24px));
        transform: none;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-participant--student {
        left: max(10px, env(safe-area-inset-left));
        bottom: max(10px, env(safe-area-inset-bottom));
        width: clamp(112px, 22vw, 190px);
        min-width: 0;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-status {
        top: max(10px, env(safe-area-inset-top));
        left: max(10px, env(safe-area-inset-left));
        max-width: 320px;
        font-size: 11px;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-controls {
        right: max(8px, env(safe-area-inset-right));
        width: 58px;
        padding: 8px;
        border-radius: 29px;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-controlbar {
        gap: 8px;
    }

    .bdtp-workbook-video-layout.is-presentation-mode .bdtp-workbook-video-device-menu {
        right: 54px;
        width: min(230px, calc(100vw - 90px));
    }
}

/* Programmaudio-Studio: Admin-Capture -> Web-Audio-DSP -> MediaStreamDestination -> LiveKit. */
.bdtp-workbook-audio-console {
    width: 100%;
    margin: 10px 0 0;
    padding: 10px;
    border: 1px solid #d7dce3;
    border-radius: 8px;
    background: #f8fafc;
    box-sizing: border-box;
}

.bdtp-workbook-audio-console__grid {
    display: grid;
    gap: 8px;
}

.bdtp-workbook-audio-console__grid--top {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.bdtp-workbook-audio-console__grid label,
.bdtp-workbook-audio-control {
    display: grid;
    gap: 4px;
    color: #334155;
    font-size: 10px;
    font-weight: 700;
}

.bdtp-workbook-audio-console select {
    width: 100%;
    min-width: 0;
    height: 30px;
    border: 1px solid #cbd5e1;
    border-radius: 5px;
    background: #fff;
    color: #111827;
    font: inherit;
    font-size: 10px;
}

.bdtp-workbook-audio-console__meters {
    display: grid;
    gap: 6px;
    margin-top: 10px;
}

.bdtp-workbook-audio-meter > span {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 3px;
    color: #475569;
    font-size: 9px;
    font-weight: 700;
}

.bdtp-workbook-audio-meter__rail {
    position: relative;
    height: 7px;
    overflow: hidden;
    border: 1px solid #cbd5e1;
    border-radius: 999px;
    background: #e5e7eb;
}

.bdtp-workbook-audio-meter__rail i {
    position: absolute;
    inset: 0;
    display: block;
    transform: scaleX(0);
    transform-origin: left center;
    background: linear-gradient(90deg, #16a34a 0%, #84cc16 60%, #eab308 83%, #dc2626 100%);
    transition: transform .06s linear;
}

.bdtp-workbook-audio-console__controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 10px;
    margin-top: 10px;
}

.bdtp-workbook-audio-control > span {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
}

.bdtp-workbook-audio-control output {
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}

.bdtp-workbook-audio-control input[type="range"] {
    width: 100%;
    margin: 0;
    accent-color: #0170b9;
}

.bdtp-workbook-audio-console__diagnostic {
    margin-top: 9px;
    color: #475569;
    font-size: 9px;
}

.bdtp-workbook-audio-console__diagnostic summary {
    cursor: pointer;
    font-weight: 700;
}

.bdtp-workbook-audio-console__diagnostic pre {
    max-height: 180px;
    margin: 6px 0 0;
    padding: 7px;
    overflow: auto;
    border-radius: 5px;
    background: #0f172a;
    color: #e2e8f0;
    font: 9px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    white-space: pre-wrap;
}

@media (max-width: 900px) {
    .bdtp-workbook-audio-console__grid--top,
    .bdtp-workbook-audio-console__controls {
        grid-template-columns: 1fr;
    }
}

/* Einklappbares Audiosetup unterhalb des Studio-Status. */
.bdtp-workbook-audio-setup {
    width: 100%;
    margin-top: 7px;
    text-align: left;
}

.bdtp-workbook-audio-setup > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 7px 9px;
    border: 1px solid #d7dce3;
    border-radius: 6px;
    background: #f8fafc;
    color: #334155;
    font-size: 10px;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
}

.bdtp-workbook-audio-setup > summary::-webkit-details-marker {
    display: none;
}

.bdtp-workbook-audio-setup > summary::after {
    content: '⌄';
    font-size: 13px;
    line-height: 1;
    transition: transform .15s ease;
}

.bdtp-workbook-audio-setup[open] > summary::after {
    transform: rotate(180deg);
}

.bdtp-workbook-audio-setup .bdtp-workbook-audio-console {
    margin-top: 6px;
}

.bdtp-workbook-audio-console__actions {
    display: flex;
    align-items: center;
    gap: 7px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.bdtp-workbook-audio-console__button {
    appearance: none;
    min-height: 30px;
    padding: 5px 9px;
    border: 1px solid #cbd5e1;
    border-radius: 5px;
    background: #fff;
    color: #334155;
    font: inherit;
    font-size: 10px;
    font-weight: 700;
    cursor: pointer;
}

.bdtp-workbook-audio-console__button:hover,
.bdtp-workbook-audio-console__button:focus-visible {
    border-color: #0170b9;
}

.bdtp-workbook-audio-console__button.is-primary {
    border-color: #0170b9;
    background: #0170b9;
    color: #fff;
}

.bdtp-workbook-audio-console__save-status {
    min-height: 14px;
    color: #475569;
    font-size: 9px;
    line-height: 1.35;
}

.bdtp-workbook-audio-console__save-status.is-error {
    color: #991b1b;
}