.box-calculator-embed {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
}

.box-calculator-embed__iframe {
    display: block;
    width: 100%;
    max-width: 100%;
    border: 0;
    border-radius: 12px;
    background: #f4f1eb;
    box-shadow: 0 8px 32px rgba(28, 36, 52, 0.08);
}

html.box-calculator-modal-open,
html.box-calculator-modal-open body {
    overflow: hidden;
}

/* هنگام باز بودن مودال — iframe تمام‌صفحه تا مودال وسط دیده شود (نه فقط لبهٔ پایین) */
.box-calculator-embed--modal-open {
    position: fixed;
    inset: 0;
    z-index: 999999;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
    background: rgba(15, 23, 42, 0.45);
    box-sizing: border-box;
}

.box-calculator-embed--modal-open .box-calculator-embed__iframe {
    display: block;
    width: 100%;
    height: 100% !important;
    min-height: 100% !important;
    max-height: none !important;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
}

.box-calculator-error {
    padding: 12px 16px;
    border-radius: 8px;
    background: #fcf0f1;
    color: #8a2424;
    border: 1px solid #f1c5c8;
}