@import url("https://fonts.googleapis.com/css2?family=Inter:wght@200;400;500;600&display=swap");

/* Переменные на контейнере, не на :root — иначе пересекаются с глобальными --* сайта (Tilda и т.д.). */
.calc-calcmain {
    --bg: #2E252C;
    --bg-soft: #352d39;
    --text: #f0ece6;
    --text-muted: #c9c2bc;
    --title-accent: #cfc2ab;
    --panel: rgba(194, 192, 195, 0.62);
    --panel-border: rgba(255, 255, 255, 0.12);
    --table: rgba(224, 223, 225, 0.84);
    --table-border: rgba(26, 21, 28, 0.8);
    --btn-fill: #c1b39f;
    --btn-fill-hover: #d0c3b1;
    --btn-text: #2f2733;
    --btn-outline: #bdb2c4;

    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    color: var(--text);
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    background: radial-gradient(circle at 45% 45%, rgba(176, 104, 37, 0.18), transparent 42%), var(--bg);
    padding: 40px;
}

.calc-calcmain::before,
.calc-calcmain::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.calc-calcmain::before {
    width: 520px;
    height: 520px;
    border: 2px solid rgba(174, 106, 45, 0.35);
    left: 50%;
    top: 44%;
    transform: translate(-50%, -50%);
}

.calc-calcmain::after {
    width: 360px;
    height: 360px;
    border: 2px solid rgba(174, 106, 45, 0.28);
    left: 50%;
    top: 44%;
    transform: translate(-50%, -50%);
}

.calc-calcmain h1,
.calc-calcmain h2,
.calc-calcmain h3,
.calc-calcmain p,
.calc-calcmain table,
.calc-calcmain .calc-button-spacing,
.calc-calcmain .calc-contact-form,
.calc-calcmain .calc-header {
    position: relative;
    z-index: 1;
}

.calc-calcmain h1 {
    margin: 0 0 8px;
    font-family: "Inter", system-ui, -apple-system, sans-serif;
    font-weight: 600;
    font-style: normal;
    font-size: 30px;
    line-height: 100%;
    letter-spacing: 0;
    text-transform: uppercase;
    color: var(--title-accent);
}

.calc-calcmain h1 .calc-title-el {
    font-weight: 200;
    font-style: normal;
}

.calc-calcmain h1 strong,
.calc-calcmain h1 b {
    color: #f3ebdf;
    font-weight: 800;
}

.calc-calcmain h2 {
    margin: 0 0 16px;
    font-family: "Inter", system-ui, sans-serif;
    font-size: 22px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text);
}

.calc-calcmain h3 {
    margin: 22px 0 14px;
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 400;
    font-style: normal;
    font-size: 20px;
    line-height: 100%;
    letter-spacing: 0;
    text-transform: none;
    color: #f3f0ea;
}

.calc-calcmain p {
    margin: 0 0 16px;
    font-family: "Inter", system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.25;
    color: var(--text);
}

.calc-calcmain .calc-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 40px;
}

.calc-calcmain .calc-header h1 {
    margin: 0;
}

.calc-calcmain .calc-intro {
    margin: 0;
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 200;
    font-style: normal;
    font-size: 14px;
    line-height: 18px;
    letter-spacing: 0;
    color: var(--text-muted);
}

.calc-calcmain .calc-landing-intro {
    margin-bottom: 40px;
}

.calc-calcmain .calc-landing-intro p:last-child {
    margin-bottom: 0;
}

.calc-calcmain .calc-calculator,
.calc-calcmain .calc-results,
.calc-calcmain .calc-contact-page,
.calc-calcmain .calc-success {
    min-height: 200px;
}

.calc-calcmain .calc-results,
.calc-calcmain .calc-contact-page,
.calc-calcmain .calc-success {
    display: none;
}

.calc-calcmain .calc-form-group {
    margin-bottom: 12px;
}

.calc-calcmain .calc-perimeter-stock-grid .calc-form-group,
.calc-calcmain .calc-rail-params-grid .calc-form-group {
    margin-bottom: 0;
}

.calc-calcmain label {
    display: block;
    margin-bottom: 8px;
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 200;
    font-style: normal;
    font-size: 16px;
    line-height: 100%;
    letter-spacing: 0;
    color: #efebe4;
}

.calc-calcmain .calc-required::after {
    content: "";
}

.calc-calcmain .calc-unit-input {
    position: relative;
}

.calc-calcmain input,
.calc-calcmain select {
    border: 1px solid var(--panel-border);
    border-radius: 0;
    color: #ffffff;
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 500;
    font-style: normal;
    font-size: 20px;
    line-height: 100%;
    letter-spacing: 0;
    box-sizing: border-box;
    outline: none;
    opacity: 1;
}

/* Нативный выпадающий список: тёмная тема (иначе в Chrome/Edge белый фон + белый текст) */
.calc-calcmain select {
    color-scheme: dark;
}

.calc-calcmain select option {
    background-color: var(--bg);
    color: var(--text);
}

.calc-calcmain select option:checked,
.calc-calcmain select option:hover {
    background-color: var(--bg-soft);
    color: #f3ebdf;
}

/* Поля калькулятора: на всю ширину ячейки сетки, высота 40px, фон #FBFAF359 */
.calc-calcmain .calc-perimeter-stock-grid > .calc-form-group,
.calc-calcmain .calc-rail-params-grid > .calc-form-group {
    min-width: 0;
}

.calc-calcmain #calculator-page input,
.calc-calcmain #calculator-page select {
    width: 100%;
    min-width: 0;
    height: 40px;
    padding: 0 48px 0 12px;
    background: #fbfaf359;
}

.calc-calcmain .calc-contact-page input {
    width: 100%;
    height: 40px;
    padding: 0 12px;
    background: #fbfaf359;
    color: #ffffff;
}

/* Плейсхолдер («необязательно» и т.п.): Inter Extra Light 20px */
.calc-calcmain #calculator-page input::placeholder,
.calc-calcmain .calc-contact-page input::placeholder {
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 200;
    font-style: normal;
    font-size: 20px;
    line-height: 100%;
    letter-spacing: 0;
    color: rgba(255, 255, 255, 0.55);
    opacity: 1;
}

.calc-calcmain input:focus,
.calc-calcmain select:focus {
    border-color: rgba(237, 225, 206, 0.45);
}

.calc-calcmain .calc-unit {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    color: #ffffff;
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 200;
    font-style: normal;
    font-size: 20px;
    line-height: 100%;
    letter-spacing: 0;
    pointer-events: none;
}

.calc-calcmain .calc-note {
    margin-top: 8px;
    color: rgba(236, 230, 220, 0.82);
    font-size: 14px;
    font-weight: 200;
}

.calc-calcmain .calc-perimeter-stock-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    row-gap: 40px;
    column-gap: 20px;
}

.calc-calcmain .calc-rail-params-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    row-gap: 40px;
    column-gap: 20px;
}

.calc-paramrey {
    margin-top: 40px;
}

.calc-calcmain .calc-rail-note {
    margin: 12px 0 0;
}

.calc-calcmain button,
.calc-calcmain .calc-success a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: clamp(64px, 5vw, 112px);
    min-width: 290px;
    border-radius: 0;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.01em;
    font-size: clamp(34px, 2.3vw, 51px);
    line-height: 1;
    padding: 10px 34px;
    transition: all 0.22s ease;
}

.calc-calcmain button {
    background: var(--btn-fill);
    color: var(--btn-text);
}

.calc-calcmain button:hover {
    background: var(--btn-fill-hover);
}

.calc-calcmain #calculator-page button {
    margin-top: 40px;
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 600;
    font-style: normal;
    font-size: 20px;
    line-height: 100%;
    letter-spacing: 0;
    text-transform: uppercase;
    height: auto;
    min-height: 48px;
    padding: 14px 24px;
}

.calc-calcmain .calc-button-spacing {
    margin-top: 24px;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    align-items: stretch;
}

.calc-calcmain .calc-contact-form .calc-button-spacing,
.calc-calcmain .calc-contact-form .calc-button-spacing {
    margin-top: 0;
    gap: 20px;
}

.calc-calcmain .calc-back-button {
    background: transparent;
    color: #ffffff;
    border: 2px solid var(--btn-outline);
}

.calc-calcmain .calc-back-button:hover {
    background: rgba(255, 255, 255, 0.08);
}

.calc-calcmain table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
    background: transparent;
}

.calc-calcmain th,
.calc-calcmain td {
    border: 2px solid var(--table-border);
    text-align: left;
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 100%;
    letter-spacing: 0;
    padding: 10px 12px;
    vertical-align: top;
}

.calc-calcmain th {
    background: #fbfaf359;
    color: #fff;
}

.calc-calcmain td {
    background: #ffffffbf;
    color: #2e252c;
}

.calc-calcmain .calc-results h1 {
    margin: 0 0 40px;
}

.calc-calcmain .calc-contact-page h1 {
    margin: 0 0 40px;
}

.calc-calcmain .calc-success h1 {
    margin: 0 0 4px;
}

.calc-calcmain .calc-results table {
    margin-top: 0;
}

.calc-calcmain .calc-results .calc-button-spacing {
    margin-top: 40px;
}

/* Кнопки на страницах результатов / контакт / успех — не глобальный «гигантский» стиль */
.calc-calcmain .calc-results .calc-button-spacing button,
.calc-calcmain .calc-contact-page button,
.calc-calcmain .calc-success button {
    min-width: 0;
    width: auto;
    flex: 1 1 auto;
    max-width: 100%;
    height: auto;
    min-height: 48px;
    padding: 12px 20px;
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 600;
    font-size: 16px;
    line-height: 100%;
    letter-spacing: 0;
    text-transform: uppercase;
}

.calc-calcmain .calc-success button {
    margin-top: 0;
}

.calc-calcmain .calc-contact-form {
    margin-top: 0;
}

.calc-calcmain .calc-contact-form > p.calc-required {
    margin: 0 0 8px;
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 200;
    font-style: normal;
    font-size: 16px;
    line-height: 100%;
    letter-spacing: 0;
    color: #efebe4;
}

.calc-calcmain .calc-color-selector {
    display: flex;
    gap: 12px;
    margin: 0 0 40px;
    flex-wrap: wrap;
}

.calc-calcmain .calc-contact-form > button + button {
    margin-top: 20px;
}

.calc-calcmain .calc-color-option {
    width: 120px;
    height: 58px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-radius: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 15px;
    font-weight: 700;
    transition: transform 0.16s ease, border-color 0.16s ease;
}

.calc-calcmain .calc-color-option:hover {
    transform: translateY(-2px);
}

.calc-calcmain .calc-color-option.calc-selected {
    border-color: #f2e7d5;
}

.calc-calcmain .calc-custom-color-input {
    min-width: 220px;
    flex: 1;
}

.calc-calcmain .calc-contact-form .calc-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 40px;
}

.calc-cassette-type-selector {
    display: flex;
    flex-wrap: wrap;
    row-gap: 40px;
    column-gap: 20px;
}

.calc-cassette-type-option {
    width: 196px;
    min-height: 64px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    cursor: pointer;
    font-size: 24px;
    color: #f2ede6;
    background: rgba(255, 255, 255, 0.06);
    transition: border-color 0.18s ease, background 0.18s ease;
}

.calc-cassette-type-option.calc-selected {
    border-color: #e7dac5;
    background: rgba(255, 255, 255, 0.14);
}

.calc-calcmain .calc-success {
    text-align: center;
    padding: 20px 0;
}

.calc-calcmain .calc-success-icon {
    font-size: 40px;
    line-height: 1;
    margin-bottom: 8px;
    color: #ddceb8;
}

.calc-success-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.calc-calcmain .calc-success p {
    margin-bottom: 12px;
    font-family: "Inter", system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.35;
    color: var(--text-muted);
}

.calc-calcmain .calc-success p span {
    display: block;
    margin-bottom: 6px;
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 600;
    font-size: 18px;
    line-height: 1.2;
    text-transform: uppercase;
    color: var(--text);
}

@media (max-width: 980px) {
    .calc-calcmain {
        padding: 40px;
    }

    .calc-calcmain::before {
        width: 420px;
        height: 420px;
    }

    .calc-calcmain::after {
        width: 290px;
        height: 290px;
    }

    .calc-calcmain h1 {
        font-size: 26px;
    }

    .calc-calcmain h3 {
        font-size: 18px;
    }

    .calc-calcmain label {
        font-size: 15px;
    }

    .calc-calcmain .calc-contact-form > p.calc-required {
        font-size: 15px;
    }

    .calc-calcmain .calc-intro {
        font-size: 13px;
        line-height: 17px;
    }

    .calc-calcmain #calculator-page input,
    .calc-calcmain #calculator-page select {
        width: 100%;
        min-width: 0;
        height: 40px;
        padding: 0 48px 0 12px;
        font-size: 20px;
        line-height: 100%;
        font-weight: 500;
    }

    .calc-calcmain .calc-contact-page input {
        height: 40px;
        padding: 0 12px;
    }

    .calc-calcmain .calc-unit {
        font-size: 20px;
        line-height: 100%;
        font-weight: 200;
    }

    .calc-calcmain .calc-perimeter-stock-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        row-gap: 40px;
        column-gap: 20px;
    }

    .calc-calcmain .calc-rail-params-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        row-gap: 40px;
        column-gap: 20px;
    }

    .calc-calcmain .calc-contact-form .calc-form-row {
        grid-template-columns: 1fr;
    }

    .calc-calcmain .calc-button-spacing {
        flex-direction: column;
        gap: 12px;
    }

    .calc-calcmain .calc-contact-form .calc-button-spacing,
    .calc-calcmain .calc-contact-form .calc-button-spacing {
        gap: 20px;
    }

    .calc-calcmain button,
    .calc-calcmain .calc-success a {
        width: 100%;
        min-width: 0;
        font-size: 44px;
        height: 84px;
    }

    .calc-calcmain #calculator-page button {
        font-size: 18px;
        line-height: 100%;
        height: auto;
        min-height: 48px;
        padding: 12px 18px;
    }

    .calc-calcmain .calc-results .calc-button-spacing button,
    .calc-calcmain .calc-contact-page button,
    .calc-calcmain .calc-success button,
    .calc-calcmain .calc-success a {
        font-size: 16px;
        line-height: 100%;
        height: auto;
        min-height: 48px;
        padding: 12px 18px;
    }

    .calc-calcmain th,
    .calc-calcmain td {
        font-size: 16px;
        padding: 10px 12px;
    }
}

@media (max-width: 560px) {
    .calc-calcmain {
        padding: 20px;
    }

    .calc-calcmain h1 {
        font-size: 18px;
        margin-bottom: 6px;
    }

    .calc-calcmain .calc-header {
        margin-bottom: 20px;
        gap: 6px;
    }

    .calc-calcmain .calc-header h1 {
        margin: 0;
    }

    .calc-calcmain .calc-landing-intro {
        margin-bottom: 20px;
    }

    .calc-calcmain h3 {
        margin-top: 12px;
        margin-bottom: 8px;
        font-size: 16px;
        text-transform: none;
    }

    .calc-calcmain .calc-intro {
        font-size: 12px;
        line-height: 16px;
    }

    .calc-paramrey {
        margin-top: 20px;
    }

    .calc-calcmain p {
        font-size: 12px;
        line-height: 1.18;
        margin-bottom: 8px;
    }

    .calc-calcmain label {
        margin-bottom: 4px;
        font-size: 14px;
    }

    .calc-calcmain #calculator-page input,
    .calc-calcmain #calculator-page select {
        width: 100%;
        min-width: 0;
        height: 40px;
        padding: 0 44px 0 10px;
        font-size: 18px;
        line-height: 100%;
        font-weight: 500;
    }

    .calc-calcmain .calc-contact-page input {
        width: 100%;
        max-width: none;
        height: 40px;
        padding: 0 10px;
    }

    .calc-calcmain #calculator-page input::placeholder,
    .calc-calcmain .calc-contact-page input::placeholder {
        font-size: 18px;
        line-height: 100%;
    }

    .calc-calcmain .calc-unit {
        right: 10px;
        font-size: 18px;
        line-height: 100%;
        font-weight: 200;
    }

    .calc-calcmain .calc-note {
        margin-top: 4px;
        font-size: 10px;
    }

    .calc-calcmain .calc-perimeter-stock-grid {
        grid-template-columns: 1fr;
        row-gap: 20px;
        column-gap: 20px;
    }

    .calc-calcmain .calc-rail-params-grid {
        grid-template-columns: 1fr 1fr;
        row-gap: 20px;
        column-gap: 20px;
    }

    .calc-cassette-type-selector {
        row-gap: 20px;
        column-gap: 20px;
    }

    .calc-calcmain .calc-button-spacing {
        margin-top: 14px;
        gap: 10px;
    }

    .calc-calcmain .calc-contact-form .calc-button-spacing,
    .calc-calcmain .calc-contact-form .calc-button-spacing {
        gap: 20px;
    }

    .calc-calcmain button,
    .calc-calcmain .calc-success a {
        height: 48px;
        font-size: 11px;
        padding: 8px 12px;
        border-width: 1px;
    }

    .calc-calcmain #calculator-page button {
        margin-top: 20px;
        font-size: 14px;
        min-height: 44px;
        height: auto;
        padding: 10px 14px;
    }

    .calc-calcmain .calc-results .calc-button-spacing button,
    .calc-calcmain .calc-contact-page button,
    .calc-calcmain .calc-success button,
    .calc-calcmain .calc-success a {
        font-size: 14px;
        min-height: 44px;
        height: auto;
        padding: 10px 14px;
    }

    .calc-calcmain table {
        margin-top: 10px;
    }

    .calc-calcmain .calc-results h1,
    .calc-calcmain .calc-contact-page h1 {
        margin-bottom: 20px;
    }

    .calc-calcmain .calc-results .calc-button-spacing {
        margin-top: 20px;
    }

    .calc-calcmain .calc-color-selector {
        margin-bottom: 20px;
    }

    .calc-calcmain .calc-contact-form .calc-form-row {
        margin-bottom: 20px;
    }

    .calc-calcmain .calc-contact-form > p.calc-required {
        font-size: 14px;
    }

    .calc-calcmain th,
    .calc-calcmain td {
        border-width: 2px;
        padding: 8px 10px;
        font-size: 16px;
        line-height: 100%;
    }

    .calc-calcmain .calc-success p {
        font-size: 14px;
    }

    .calc-calcmain .calc-success-icon {
        font-size: 32px;
    }

    .calc-calcmain .calc-color-option {
        width: 88px;
        height: 42px;
        font-size: 11px;
    }

    .calc-cassette-type-option {
        width: calc(50% - 10px);
        min-height: 48px;
        font-size: 14px;
    }

    .calc-calcmain .calc-contact-form .calc-form-row {
        gap: 10px;
        margin-bottom: 10px;
    }
}

/* Сервисная форма Тильды (мост для заявок из калькулятора): класс в Block CSS class name. */
.uc-hidden-form {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
    clip: rect(0 0 0 0) !important;
    clip-path: inset(50%) !important;
}

.calc-calcmain .calc-consent-row {
    margin: 10px 0 18px;
}

.calc-calcmain .calc-consent-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    line-height: 1.35;
    color: var(--text-muted);
    cursor: pointer;
}

.calc-calcmain .calc-consent-label input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    min-width: 16px;
    padding: 0;
    border: 1px solid var(--btn-outline);
    background: transparent;
    border-radius: 2px;
    margin: 0;
    flex: 0 0 auto;
    position: relative;
    cursor: pointer;
}

.calc-calcmain .calc-consent-label input[type="checkbox"]:checked::after {
    content: "";
    position: absolute;
    left: 5px;
    top: 2px;
    width: 4px;
    height: 8px;
    border: solid var(--title-accent);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.calc-calcmain .calc-consent-label span {
    display: inline;
    vertical-align: middle;
}

.calc-calcmain .calc-consent-label a {
    color: var(--title-accent);
    text-decoration: underline;
}