.lms-dock-preview[hidden] {
    display: none !important;
}

.lms-dock-preview {
    position: fixed;
    inset: 0;
    z-index: 12500;
    display: grid;
    place-items: center;
    padding: 1rem;
}

.lms-dock-preview__backdrop {
    position: absolute;
    inset: 0;
    background: rgb(15 23 42 / 0.62);
    backdrop-filter: blur(3px);
}

.lms-dock-preview__panel {
    position: relative;
    z-index: 1;
    box-sizing: border-box;
    width: var(--lms-dock-shell-width, min(1100px, calc(100vw - 1.25rem)));
    height: var(--lms-dock-shell-height, min(94vh, 920px));
    max-height: var(--lms-dock-shell-max-height, min(94vh, 920px));
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    padding: 1rem 1.05rem;
    border-radius: 1.1rem;
    background: #fff;
    box-shadow: 0 24px 60px rgb(0 0 0 / 0.32);
    overflow: hidden;
}

.lms-dock-preview__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    flex-shrink: 0;
}

.lms-dock-preview__kicker {
    margin: 0;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--brand-primary, #7c3aed);
}

.lms-dock-preview__header h2 {
    margin: 0.12rem 0 0;
    font-size: 1.15rem;
    font-weight: 800;
    color: #111827;
    line-height: 1.25;
}

.lms-dock-preview__stage {
    flex: 1;
    min-height: 0;
    display: grid;
    place-items: center;
    overflow: auto;
    padding: 0.75rem;
    border-radius: 0.85rem;
    background: color-mix(in srgb, var(--brand-primary, #7c3aed) 6%, #f8fafc);
    border: 1px solid color-mix(in srgb, var(--brand-border, #e2e8f0) 80%, #fff);
}

.lms-dock-preview__img {
    max-width: min(100%, 520px);
    max-height: min(100%, 640px);
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 0.65rem;
    box-shadow: 0 12px 32px rgb(0 0 0 / 0.12);
}

.lms-dock-preview__iframe {
    width: 100%;
    height: 100%;
    min-height: min(72vh, 680px);
    border: 0;
    border-radius: 0.55rem;
    background: #fff;
}

.lms-dock-preview__footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.55rem;
    flex-shrink: 0;
}

.lms-dock-preview__btn {
    min-height: 2.5rem;
    padding: 0.45rem 1rem;
    border-radius: 0.65rem;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 800;
    cursor: pointer;
    border: 0;
}

.lms-dock-preview__btn--ghost {
    background: #f3f4f6;
    color: #374151;
}

.lms-dock-preview__btn--primary {
    background: var(--brand-primary, #7c3aed);
    color: var(--brand-button-text, #fff);
}