/* ===== Overlay plein écran ===== */
.iframe-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;

    display: flex;
    align-items: center;
    justify-content: center;

    background: rgba(0, 0, 0, 0.75);
    z-index: 999999;
}

/* ===== Conteneur A4 ===== */
.iframe-container {
    position: relative;
    overflow: hidden;

    background: #000;
    border-radius: 6px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.6);
}

/* ===== Image & iframe ===== */
.iframe-image,
.iframe-content {
    display: block;
    width: 100%;
    height: 100%;

    border: none;
    object-fit: contain;
    background: #fff;
}

/* ===== Bouton fermeture ===== */
.iframe-close {
    position: absolute;
    top: 8px;
    right: 12px;
    z-index: 10;

    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    border: none;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
}