/* ============================================================
   Калькулятор стоимости — /calc
   Собственный визуальный язык: «смета» — тихий лист с волосяными
   линиями, крупная типографика, один очевидный следующий шаг.
   ============================================================ */

/* На калькуляторе плавающие кнопки мешают карточкам и CTA */
body.is-calc .icon-tooltip { display: none; }

.calc-page {
    background: #f4f7fb;
    color: #0f1b2d;
    font-family: 'Exo 2', system-ui, sans-serif;
    padding-bottom: 44px;
}

.calc-wrap {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- Обёртка секции (встроенный режим в разделах) ---------- */
.calc-section {
    padding: 48px 0;
    background: #f4f7fb;
    scroll-margin-top: 80px;
}
@media (max-width: 767px) {
    .calc-section { padding: 32px 0; }
}
.calc-section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 26px;
}
.calc-section-title {
    margin: 0 0 10px;
    font-size: clamp(24px, 3.2vw, 34px);
    font-weight: 800;
    letter-spacing: -.01em;
    color: #0f1b2d;
}
.calc-section-lead {
    margin: 0;
    color: #5b6b80;
    font-size: 15px;
    line-height: 1.6;
}
.calc-wrap.is-embedded .calc-steps { margin-top: 0; }

/* ---------- Шапка ---------- */
.calc-hero {
    padding: 44px 0 30px;
    position: relative;
    overflow: hidden;
}
.calc-hero::after {
    content: '';
    position: absolute;
    right: -120px;
    top: -160px;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: url('/assets/img/bg/bg-header.webp') center/cover no-repeat;
    opacity: .5;
    -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 30%, transparent 72%);
    mask-image: radial-gradient(circle at 50% 50%, #000 30%, transparent 72%);
    pointer-events: none;
}
.calc-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .09em;
    text-transform: uppercase;
    color: #005fc0;
    margin: 0 0 14px;
}
.calc-kicker::before {
    content: '';
    width: 22px;
    height: 2px;
    background: #005fc0;
    border-radius: 2px;
}
.calc-hero h1 {
    font-size: clamp(28px, 4.2vw, 46px);
    line-height: 1.08;
    font-weight: 800;
    margin: 0 0 14px;
    max-width: 17ch;
    letter-spacing: -.01em;
}
.calc-hero p {
    margin: 0;
    max-width: 62ch;
    font-size: clamp(15px, 1.5vw, 17px);
    line-height: 1.6;
    color: #5b6b80;
}

/* ---------- Шаги ---------- */
.calc-steps {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 26px 0 22px;
    flex-wrap: wrap;
}
.calc-step {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 7px 14px 7px 7px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid #e4ebf4;
    font-size: 14px;
    font-weight: 600;
    color: #5b6b80;
    cursor: pointer;
    transition: .2s ease;
    font-family: inherit;
}
.calc-step:hover { border-color: #c8d8ee; color: #4a5b72; }
.calc-step b {
    width: 24px; height: 24px;
    border-radius: 50%;
    background: #eef3f9;
    color: #5b6b80;
    display: grid; place-items: center;
    font-size: 12px; font-weight: 700;
    transition: .2s ease;
}
.calc-step.is-active { border-color: #005fc0; color: #0f1b2d; box-shadow: 0 4px 14px rgba(0,105,217,.10); }
.calc-step.is-active b { background: #005fc0; color: #fff; }
.calc-step.is-done b { background: #d9ecff; color: #005fc0; }
.calc-step.is-done { color: #4a5b72; }

/* ---------- Сетка ---------- */
.calc-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 352px;
    gap: 26px;
    align-items: start;
}

/* ---------- Карточка шага ---------- */
.calc-card {
    background: #fff;
    border: 1px solid #e4ebf4;
    border-radius: 20px;
    padding: 30px 32px 34px;
    box-shadow: 0 1px 2px rgba(15,27,45,.03), 0 18px 40px -28px rgba(15,27,45,.22);
    animation: calcIn .32s cubic-bezier(.22,.61,.36,1);
}
@keyframes calcIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: none; }
}
.calc-card h2 {
    margin: 0 0 6px;
    font-size: clamp(21px, 2.4vw, 27px);
    font-weight: 700;
    letter-spacing: -.01em;
}
.calc-card > p.calc-lead {
    margin: 0 0 26px;
    color: #5b6b80;
    font-size: 15px;
    line-height: 1.6;
}
.calc-panel[hidden] { display: none; }

.calc-group + .calc-group { margin-top: 30px; }
.calc-group > h3 {
    margin: 0 0 14px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .07em;
    text-transform: uppercase;
    color: #5b6b80;
}

/* ---------- Плитки выбора ---------- */
.calc-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(196px, 1fr));
    gap: 12px;
}
.calc-tile {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    width: 100%;
    text-align: left;
    padding: 18px 18px 17px;
    background: #fbfcfe;
    border: 1.5px solid #e4ebf4;
    border-radius: 15px;
    cursor: pointer;
    font-family: inherit;
    color: inherit;
    transition: .18s ease;
}
.calc-tile:hover { border-color: #b9d0ee; background: #fff; transform: translateY(-1px); }
.calc-tile .calc-tile-ic {
    width: 40px; height: 40px;
    margin-bottom: 12px;
    color: #6b8db8;
    transition: .18s ease;
}
.calc-tile .calc-tile-ic svg { width: 100%; height: 100%; display: block; }
.calc-tile strong { display: block; font-size: 16px; font-weight: 700; margin-bottom: 3px; }
.calc-tile span { display: block; font-size: 13px; line-height: 1.45; color: #5b6b80; }
/* Свой фокус вместо системного кольца: кольцо закрывало синюю рамку «выбрано» */
.calc-tile:focus, .calc-open-tile:focus, .calc-step:focus, .calc-opt:focus-within {
    outline: 2px solid #005fc0;
    outline-offset: -2px;
}
.calc-tile:focus:not(:focus-visible), .calc-open-tile:focus:not(:focus-visible), .calc-step:focus:not(:focus-visible) {
    outline: none;
}
.calc-tile-photo {
    display: block;
    width: 100%;
    height: 88px;
    margin-bottom: 10px;
    border-radius: 10px;
    background: linear-gradient(180deg, #f4f8fd, #e9f0f9);
    overflow: hidden;
}
.calc-tile-photo img { width: 100%; height: 100%; object-fit: contain; object-position: 50% 50%; display: block; }
.calc-tile.is-on {
    border-color: #005fc0;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(0,105,217,.10);
}
.calc-tile.is-on .calc-tile-ic { color: #005fc0; }

/* ---------- Размеры ---------- */
.calc-size {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}
.calc-group .calc-range + .calc-range { margin-top: 18px; }
.calc-size .calc-range + .calc-range { margin-top: 0; }
.calc-range-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}
.calc-range-head label { font-size: 15px; font-weight: 600; }
.calc-range-head .calc-range-val {
    font-size: 15px;
    font-weight: 700;
    color: #005fc0;
    font-variant-numeric: tabular-nums;
}
.calc-range-head .calc-range-val small { font-weight: 500; color: #5b6b80; margin-left: 3px; }
.calc-range input[type=range] {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 999px;
    background: #e9eff7;
    outline: none;
    margin: 6px 0 0;
}
.calc-range input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px; height: 22px;
    border-radius: 50%;
    background: #005fc0;
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(0,105,217,.35);
    cursor: grab;
}
.calc-range input[type=range]::-moz-range-thumb {
    width: 16px; height: 16px;
    border-radius: 50%;
    background: #005fc0;
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(0,105,217,.35);
    cursor: grab;
}
.calc-num {
    width: 116px;
    padding: 8px 12px;
    border: 1.5px solid #e4ebf4;
    border-radius: 11px;
    font: inherit;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    color: inherit;
    background: #fbfcfe;
    font-variant-numeric: tabular-nums;
}
.calc-num:focus { outline: none; border-color: #005fc0; background: #fff; }

/* ---------- Чекбоксы-опции ---------- */
.calc-opts {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 10px;
}
.calc-opt {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 13px 15px;
    border: 1.5px solid #e4ebf4;
    border-radius: 13px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    background: #fbfcfe;
    transition: .18s ease;
    user-select: none;
}
.calc-opt input { position: absolute; opacity: 0; pointer-events: none; }
.calc-opt i {
    width: 20px; height: 20px;
    flex: 0 0 20px;
    border: 1.5px solid #c9d6e6;
    border-radius: 6px;
    background: #fff;
    display: grid;
    place-items: center;
    transition: .16s ease;
}
.calc-opt i::after {
    content: '';
    width: 10px; height: 6px;
    border-left: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(-45deg) scale(.4);
    opacity: 0;
    transition: .16s ease;
}
.calc-opt.is-on { border-color: #005fc0; background: #f5faff; }
.calc-opt.is-on i { background: #005fc0; border-color: #005fc0; }
.calc-opt.is-on i::after { opacity: 1; transform: rotate(-45deg) scale(1); }
.calc-opt:hover { border-color: #b9d0ee; }

/* ---------- Правая колонка: подсказки и смета ---------- */
.calc-side {
    position: sticky;
    /* шапка сайта становится fixed при скролле — колонка не должна под неё заезжать */
    top: calc(var(--calc-header-h, 64px) + 16px);
    display: grid;
    gap: 16px;
    align-content: start;
}
.calc-side > [hidden] { display: none; }
.calc-rail { display: grid; gap: 16px; }
.calc-rail-panel {
    background: #fff;
    border: 1px solid #e4ebf4;
    border-radius: 20px;
    padding: 24px 24px 22px;
    box-shadow: 0 1px 2px rgba(15,27,45,.03), 0 18px 40px -28px rgba(15,27,45,.18);
}
.calc-rail-panel h3 {
    margin: 0 0 6px;
    font-size: 17px;
    font-weight: 700;
    color: #0f1b2d;
}
.calc-rail-panel > p {
    margin: 0 0 16px;
    font-size: 13.5px;
    line-height: 1.55;
    color: #5b6b80;
}
.calc-rail-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 11px;
}
.calc-rail-list li {
    position: relative;
    padding-left: 26px;
    font-size: 14px;
    line-height: 1.45;
    color: #0f1b2d;
}
.calc-rail-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    width: 17px;
    height: 17px;
    border-radius: 50%;
    background: #e8f2ff;
    color: #005fc0;
    font-size: 11px;
    font-weight: 700;
    display: grid;
    place-items: center;
}
.calc-rail-person {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 16px;
}
.calc-rail-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    flex: 0 0 auto;
    background: #eef3f9;
}
.calc-rail-person-txt b {
    display: block;
    font-size: 14.5px;
    line-height: 1.3;
    color: #0f1b2d;
}
.calc-rail-person-txt > span {
    display: block;
    font-size: 12.5px;
    line-height: 1.4;
    color: #5b6b80;
}
.calc-rail-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 5px;
    font-style: normal;
    font-size: 12.5px;
    line-height: 1.3;
    color: #5b6b80;
}
.calc-rail-status i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #9aa9bd;
    flex: 0 0 auto;
}
.calc-rail-status.is-online { color: #0f7a3d; }
.calc-rail-status.is-online i {
    background: #12b76a;
    box-shadow: 0 0 0 3px rgba(18,183,106,.16);
}
.calc-rail-phone {
    display: block;
    margin-bottom: 12px;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -.01em;
    color: #0f1b2d;
    text-decoration: none;
}
.calc-rail-phone:hover { color: #005fc0; }
.calc-rail-wa {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 18px;
    border-radius: 12px;
    background: #0f1b2d;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: .2s ease;
}
.calc-rail-wa:hover { background: #005fc0; color: #fff; }
.calc-rail-note {
    display: block;
    margin-top: 12px;
    font-size: 12.5px;
    line-height: 1.5;
    color: #5b6b80;
}

/* ---------- Смета (правая колонка) ---------- */
.calc-summary {
    background: #0f1b2d;
    color: #fff;
    border-radius: 20px;
    padding: 26px 26px 24px;
    box-shadow: 0 24px 50px -26px rgba(15,27,45,.6);
}
.calc-summary h2 {
    margin: 0 0 4px;
    font-size: 19px;
    font-weight: 700;
}
.calc-summary > p { margin: 0 0 18px; font-size: 13.5px; color: #93a6c0; }
.calc-sum-row {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 9px 0;
    border-bottom: 1px dashed rgba(255,255,255,.14);
    font-size: 14px;
}
.calc-sum-row:last-of-type { border-bottom: 0; }
.calc-sum-row span { color: #93a6c0; flex: 0 0 auto; }
.calc-sum-row b {
    font-weight: 600;
    text-align: right;
    margin-left: auto;
    word-break: break-word;
}
.calc-sum-row.is-empty b { color: #6f829c; font-weight: 500; }
.calc-sum-area {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 16px 0 18px;
    padding: 14px 16px;
    background: rgba(255,255,255,.07);
    border-radius: 13px;
    font-size: 14px;
}
.calc-sum-area b { font-size: 19px; font-weight: 800; font-variant-numeric: tabular-nums; }
.calc-cta {
    display: block;
    width: 100%;
    padding: 16px 20px;
    border: 0;
    border-radius: 13px;
    background: #005fc0;
    color: #fff;
    font: inherit;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: .18s ease;
    text-align: center;
}
.calc-cta:hover { background: #004a9e; }
.calc-cta:disabled { background: #33506f; cursor: default; }
.calc-sum-note {
    margin: 12px 0 0;
    font-size: 12.5px;
    line-height: 1.5;
    color: #7f93ad;
    text-align: center;
}

/* ---------- Навигация по шагам ---------- */
.calc-nav {
    display: flex;
    gap: 12px;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid #e4ebf4;
}
.calc-btn {
    flex: 1 1 auto;
    padding: 14px 20px;
    border-radius: 13px;
    border: 1.5px solid #e4ebf4;
    background: #fff;
    color: #0f1b2d;
    font: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: .18s ease;
}
.calc-btn:hover { border-color: #b9d0ee; }
.calc-btn--primary { background: #005fc0; border-color: #005fc0; color: #fff; }
.calc-btn--primary:hover { background: #004a9e; border-color: #004a9e; }
.calc-btn[hidden] { display: none; }

/* ---------- Форма в шаге 4 ---------- */
.calc-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
    padding-top: 26px;
    border-top: 1px solid #e4ebf4;
}
.calc-field { display: block; }
.calc-field--wide { grid-column: 1 / -1; }
.calc-field span { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 7px; color: #4a5b72; }
.calc-field input {
    width: 100%;
    padding: 13px 15px;
    border: 1.5px solid #e4ebf4;
    border-radius: 12px;
    font: inherit;
    font-size: 15.5px;
    background: #fbfcfe;
    color: inherit;
}
.calc-field input:focus { outline: none; border-color: #005fc0; background: #fff; }
.calc-field input.is-bad { border-color: #d64545; background: #fff6f6; }
.calc-consent {
    grid-column: 1 / -1;
    display: flex;
    align-items: flex-start;
    gap: 11px;
    font-size: 13.5px;
    line-height: 1.5;
    color: #5b6b80;
    cursor: pointer;
}
.calc-consent input { width: 19px; height: 19px; margin: 0; accent-color: #005fc0; flex: 0 0 auto; }
.calc-form .calc-btn--primary { grid-column: 1 / -1; padding: 17px 20px; font-size: 16.5px; }
.calc-ok {
    display: none;
    text-align: center;
    padding: 26px 0 8px;
}
.calc-ok.is-on { display: block; }
.calc-ok-ic {
    width: 58px; height: 58px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: #e6f7ee;
    color: #1f9254;
    display: grid;
    place-items: center;
}
.calc-ok h3 { margin: 0 0 8px; font-size: 23px; font-weight: 700; }
.calc-ok p { margin: 0 0 20px; color: #5b6b80; font-size: 15px; }

/* ---------- Превью конструкции ---------- */
.calc-preview {
    background: linear-gradient(180deg, #f7fafe, #eef4fc);
    border: 1px solid #e4ebf4;
    border-radius: 16px;
    padding: 16px 20px;
    margin: 0 auto 24px;
    max-width: 440px;
    display: grid;
    place-items: center;
    height: 344px;
}
.calc-preview svg,
.calc-preview .calc-photo {
    /* Иллюстрация всегда одного размера: квадрат 300px (на мобильном 264px).
       Габариты меняют только цифры — подпись и ползунки. */
    width: 300px;
    max-width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}
.calc-preview-cap {
    text-align: center;
    font-size: 13px;
    color: #5b6b80;
    margin-top: 12px;
}

/* ---------- Мобильный ---------- */
@media (max-width: 1023px) {
    .calc-grid { grid-template-columns: minmax(0, 1fr); }
    .calc-side { position: static; }
    .calc-summary { position: static; }
    .calc-steps { gap: 6px; }
    .calc-step { padding: 6px 10px 6px 6px; font-size: 12.5px; }
    .calc-step b { width: 21px; height: 21px; font-size: 11px; }
    .calc-step span { display: none; }
    .calc-step.is-active span { display: inline; }
}
@media (max-width: 767px) {
    .calc-wrap { padding: 0 14px; }
    .calc-preview { height: 288px; padding: 12px 14px; }
    .calc-preview svg,
    .calc-preview .calc-photo { width: 264px; }
    .calc-hero { padding: 26px 0 20px; }
    .calc-card { padding: 22px 18px 24px; border-radius: 16px; }
    .calc-size { grid-template-columns: minmax(0, 1fr); }
    .calc-form { grid-template-columns: minmax(0, 1fr); }
    .calc-tiles { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
    .calc-tile { padding: 14px; }
    .calc-opts { grid-template-columns: minmax(0, 1fr); }
    .calc-nav { flex-direction: column-reverse; }
}

/* ---------- Ошибки полей ---------- */
.calc-err {
    display: none;
    margin: 7px 0 0;
    font-size: 13px;
    color: #c33a3a;
}
.calc-field.is-bad .calc-err { display: block; }
.calc-field.is-bad input { border-color: #d64545; background: #fff7f7; }
.calc-formnote {
    display: none;
    grid-column: 1 / -1;
    margin: 0;
    padding: 13px 15px;
    border-radius: 11px;
    background: #fff4f4;
    border: 1px solid #f3d3d3;
    color: #a83232;
    font-size: 13.5px;
    line-height: 1.5;
}
.calc-formnote.is-on { display: block; }

/* Во встроенном режиме (в разделах сайта) липкая панель не рендерится — 
   партиал её не выводит. Правило ниже — страховка от случайного рендера:
   если по ошибке панель попадёт в разметку, она не покажется и не добавит отступов. */
.calc-wrap.is-embedded .calc-sticky { display: none !important; }

/* ---------- Мобильная липкая панель ---------- */
.calc-sticky {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 60;
    display: none;
    align-items: center;
    gap: 14px;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
    background: rgba(255,255,255,.96);
    backdrop-filter: blur(10px);
    border-top: 1px solid #e4ebf4;
    box-shadow: 0 -6px 22px -14px rgba(15,27,45,.4);
}
.calc-sticky-info { flex: 1 1 auto; min-width: 0; }
.calc-sticky-info b { display: block; font-size: 15px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.calc-sticky-info span { display: block; font-size: 12.5px; color: #5b6b80; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.calc-sticky .calc-cta { flex: 0 0 auto; width: auto; padding: 13px 20px; font-size: 15px; }
@media (max-width: 1023px) {
    .calc-sticky { display: flex; }
    .calc-page { padding-bottom: 0; }
}

/* ---------- Открывание и ручка ---------- */
.calc-open {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(158px, 1fr));
    gap: 12px;
}
.calc-open-tile {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    width: 100%;
    text-align: center;
    padding: 14px 12px 15px;
    background: #fbfcfe;
    border: 1.5px solid #e4ebf4;
    border-radius: 15px;
    cursor: pointer;
    font-family: inherit;
    color: inherit;
    transition: border-color .16s ease, background .16s ease, transform .16s ease;
}
.calc-open-tile:hover { border-color: #b9d0ee; background: #fff; }
.calc-open-tile strong { display: block; font-size: 14.5px; line-height: 1.25; font-weight: 700; margin-top: 8px; min-height: 2.5em; }
.calc-open-tile > span:not(.calc-open-ic) { display: block; font-size: 12.5px; line-height: 1.4; color: #5b6b80; margin-top: 3px; min-height: 2.8em; }
.calc-open-ic {
    /* фото и вектор занимают одно и то же место: одинаковый размер и одна линия */
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 132px;
    margin: 0 auto;
    background: linear-gradient(180deg, #f4f8fd, #e9f0f9);
    border-radius: 12px;
}
.calc-open-ic svg { width: 100%; height: 100%; display: block; }
.calc-open-ic .calc-open-photo {
    display: block;
    width: 100%;
    height: 96px;              /* у всех фото окно одной высоты — линия получается ровная */
    object-fit: contain;
    object-position: 50% 50%;
}
.calc-open-check {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #00b756;
    color: #fff;
    display: grid;
    place-items: center;
    opacity: 0;
    transform: scale(.4);
    transition: opacity .18s ease, transform .18s ease;
}
.calc-open-tile.is-on {
    border-color: #005fc0;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(0,105,217,.10);
}
.calc-open-tile.is-on .calc-open-check { opacity: 1; transform: scale(1); }
.calc-open-tile.is-on strong { color: #005fc0; }
.calc-open-tile.is-on .calc-open-ic { box-shadow: inset 0 0 0 2px rgba(0,183,86,.28); }

/* отклик на клик: видно, что выбор применился */
.calc-open-tile.is-on .calc-open-ic { animation: calcPop .34s cubic-bezier(.22,.61,.36,1); }
@keyframes calcPop {
    0% { transform: scale(.94); }
    60% { transform: scale(1.03); }
    100% { transform: scale(1); }
}

/* чертёж конструкции: короткий отклик при смене параметров */
.calc-preview.is-updated { animation: calcFlash .34s ease; }
@keyframes calcFlash {
    0% { opacity: .55; transform: scale(.985); }
    100% { opacity: 1; transform: scale(1); }
}
@media (max-width: 767px) {
    .calc-open { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .calc-open-ic { width: 108px; height: 108px; }
}

/* Липкая панель не перекрывает активные кнопки */
html.is-calc { scroll-padding-bottom: 104px; }
.calc-page { scroll-padding-bottom: 104px; }

/* На мобильном смета — над формой, чтобы «справа» не вводило в заблуждение */
@media (max-width: 1023px) {
    /* Смета — после карточки шага, чтобы не отодвигать форму на пол-экрана.
       На последнем шаге — перед ней (её смотрят перед отправкой). */
    .calc-side { order: 0; margin-bottom: 18px; }
    body.is-calc-last .calc-side { order: -1; }
    /* компактная смета: строки в две колонки, чтобы не отодвигать форму */
    .calc-summary { padding: 18px 18px 16px; }
    .calc-summary h2 { font-size: 17px; }
    .calc-summary > p { margin-bottom: 12px; font-size: 12.5px; }
    #calcSum { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
    .calc-sum-row { flex-direction: column; align-items: flex-start; gap: 1px; padding: 7px 0; font-size: 12.5px; }
    .calc-sum-row b { text-align: left; font-size: 13.5px; margin-left: 0; }
    .calc-sum-area { margin: 12px 0 0; padding: 11px 13px; }
    /* одна кнопка на экране: в смете на мобильном она лишняя */
    .calc-summary .calc-cta { display: none; }
}
/* Липкая панель не должна закрывать подвал (на десктопе панели нет) */
@media (max-width: 1023px) {
    body.is-calc { padding-bottom: 104px; }
}
/* Телефон в мобильной шапке не должен обрезаться */
.calc-head .menu-phone-mobile { padding-right: 4px; }
.calc-head .menu-phone-mobile a { font-size: 16px; }
@media (max-width: 400px) {
    .calc-head .menu-phone-mobile a { font-size: 15px; }
    .calc-head .menu-phone-mobile .nav-contact-label { display: none; }
}

@media (max-width: 360px) {
    .calc-sticky { gap: 10px; padding-left: 12px; padding-right: 12px; }
    .calc-sticky-info b { font-size: 13.5px; }
    .calc-sticky-info span { font-size: 11.5px; }
    .calc-sticky .calc-cta { padding: 12px 14px; font-size: 14px; }
}