/* ===== Base, variables, reset, container, scrollbar ===== */
:root {
    --color-primary: #9E0A24;
    --color-primary-hover: #B80E2C;
    --color-primary-dark: #7A0719;
    --color-white: #FFFFFF;
    --color-dark: #222222;
    --color-card: #2A2A2A;
    --color-card-border: rgba(255, 255, 255, 0.08);
    --color-blue: #0A4A9E;
    --color-blue-hover: #0D5DC4;
    --color-overlay: rgba(0, 0, 0, 0.35);
    --color-header-bg: transparent;
    --color-nav-bg: transparent;
    --color-text-muted: rgba(255, 255, 255, 0.85);
    --color-text-dim: rgba(255, 255, 255, 0.65);

    --container: 1920px;
    --header-h: 110px;
    --nav-h: 64px;
    --section-gap: 190px;

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-pill: 999px;
    --font-main: 'Arial', sans-serif;
    --font-size-standart: 22px;
    --font-size-header: 50px;
    --font-secondary: 'Oswald', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --transition: 0.25s ease;
}

@media (max-width: 1450px) {
    :root {
        --font-size-standart: 18px;
        --font-size-header: 38px;
        --section-gap: 120px;
    }
}
@media (max-width: 769px) {
    :root {
        --font-size-standart: 13px;
        --font-size-header: 26px;
        --section-gap: 67px;
    }
}
*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: rgba(158, 10, 36, 0.6) transparent;
    overflow-y: overlay;
}

section[id] {
    scroll-margin-top: 120px;
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
    background: transparent;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background-color: rgba(158, 10, 36, 0.6);
    border-radius: 8px;
    border: 2px solid transparent;
    background-clip: padding-box;
    transition: background-color 0.2s ease;
}

::-webkit-scrollbar-thumb:hover {
    background-color: rgba(158, 10, 36, 0.9);
    background-clip: padding-box;
}

::-webkit-scrollbar-corner {
    background: transparent;
}

body {
    font-family: var(--font-main);
    color: #000;
    background: #fff;
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 50px;
}

section {
    margin-top: var(--section-gap);
    margin-bottom: var(--section-gap);
}


/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-weight: 500;
    font-size: 14px;
    line-height: 1;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 14px 36px;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
    white-space: nowrap;
    user-select: none;
}

.btn--primary {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn--primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

.btn--outline {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn--outline:hover {
    background: var(--color-primary);
}

.btn--lg {
    font-size: 16px;
    padding: 20px 48px;
    letter-spacing: 0.08em;
    border-radius: var(--radius-pill);
}

.btn:active {
    transform: translateY(1px);
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: transparent;
    transition: background-color var(--transition), box-shadow var(--transition), transform 0.35s ease, backdrop-filter var(--transition);
    will-change: transform;
}

.header--scrolled {
    background: rgba(15, 8, 7, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.header--hidden {
    transform: translateY(-100%);
}

.header__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(max-content, 1fr);
    align-items: center;
    column-gap: 48px;
    min-height: var(--header-h);
    height: 164px;
    position: relative;
    padding-left: 90px;
    padding-right: 90px;
}

.header-scroll-fix {
    background: #222222;
    position: fixed;
    top: 0;
    left: 0;
    padding-top: 0;
    padding-bottom: 0;
    height: 164px;
}

.header-scroll-fix + .nav {
    display: none;
}

.header__left {
    display: flex;
    align-items: center;
    gap: 24px;
    justify-self: start;
    min-width: 0;
}

.header__right {
    display: flex;
    align-items: center;
    gap: 86px;
    justify-self: end;
    min-width: 0;
}

.header__right a {
    width: 43px;
    height: 43px;
}

.header__logo {
    flex-shrink: 0;
    display: block;
}

.header__logo img {
    height: 78px;
    width: auto;
}

.header__title {
    font-size: 26px;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--color-white);
    white-space: nowrap;
}

.header__catalog {
    justify-self: center;
    min-width: 220px;
    padding: 14px 56px;
}

.header__schedule {
    display: flex;
    flex-direction: row;
    align-items: baseline;
    gap: 8px;
    line-height: 1.3;
    font-size: 15px;
    white-space: nowrap;
}

.header__schedule-label {
    color: var(--color-text-muted);
    font-weight: 400;
}

.header__schedule-time {
    color: var(--color-white);
    font-weight: 500;
}

.header__contact {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.header__phone {
    font-size: 19px;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: var(--color-white);
    transition: color var(--transition);
    white-space: nowrap;
}

.header__phone:hover {
    color: var(--color-primary);
}

.header__callback {
    margin-top: 4px;
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--color-primary);
    border-bottom: 1px dashed var(--color-primary);
    padding-bottom: 1px;
    transition: color var(--transition), border-color var(--transition);
    white-space: nowrap;
}

.header__callback:hover {
    color: var(--color-primary-hover);
    border-bottom-color: var(--color-primary-hover);
}

.header__socials {
    display: flex;
    align-items: center;
    gap: 86px;
    flex-shrink: 0;
}

.social {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 9px;
    background: var(--color-white);
    transition: transform var(--transition), box-shadow var(--transition);
}

.social:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

.social img {
    width: 22px;
    height: auto;
    display: block;
}

/* ===== Navigation ===== */
.nav {
    background: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: var(--nav-h);
    gap: 56px;
    flex-wrap: wrap;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 78px;
    flex-wrap: wrap;
    justify-content: center;
}

.nav__link {
    position: relative;
    font-size: 16px;
    font-family: Arial, sans-serif;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-white);
    padding: 8px 0;
    transition: color var(--transition);
}

.nav__link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition);
}

.nav__link:hover {
    text-decoration: none;
}

.nav__link:hover::after {
    width: 100%;
}

.nav__mail {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-white);
    transition: color var(--transition);
}

.nav__mail:hover {
    color: var(--color-primary);
}


/* ===== Mobile menu / burger / nav-mobile ===== */
.header__burger {
    display: none;
    width: 44px;
    height: 44px;
    background: var(--color-white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    padding: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    transition: background-color var(--transition);
}

.header__burger:hover {
    background: #f5f5f5;
}

.header__burger span {
    display: block;
    width: 22px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

.nav-mobile {
    display: none;
    background: transparent;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-mobile__inner {
    padding: 12px 16px;
}

.nav-mobile__list {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.nav-mobile__link {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-white);
    white-space: nowrap;
    transition: color var(--transition);
}

.nav-mobile__link:hover {
    color: var(--color-primary);
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    width: 100dvw;
    height: 100vh;
    height: 100dvh;
    z-index: 9999;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition);
}

.mobile-menu--open {
    pointer-events: auto;
    opacity: 1;
}

.mobile-menu__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.mobile-menu__panel {
    position: absolute;
    top: 0;
    left: 0;
    width: min(420px, 88vw);
    height: 100%;
    background: var(--color-dark);
    color: var(--color-white);
    padding: 60px 28px 28px;
    transform: translateX(-100%);
    transition: transform var(--transition);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
}

.mobile-menu--open .mobile-menu__panel {
    transform: translateX(0);
}

.mobile-menu__close {
    position: absolute;
    top: 12px;
    right: 14px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    color: var(--color-white);
    font-size: 32px;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    transition: color var(--transition);
}

.mobile-menu__close:hover {
    color: var(--color-primary);
}

.mobile-menu__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.mobile-menu__link {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-white);
    transition: color var(--transition);
}

.mobile-menu__link:hover {
    color: var(--color-primary);
}

.mobile-menu__contact {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 20px;
    margin-top: auto;
}

.mobile-menu__phone {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-white);
}

.mobile-menu__mail {
    font-size: 12px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.75);
}

.hero__cta {
    display: inline-flex;
    align-items: center;
    gap: 16px;
}

.hero__cta-arrow {
    width: 24px;
    height: 12px;
    flex-shrink: 0;
    transition: transform var(--transition);
}

.hero__cta:hover .hero__cta-arrow {
    transform: translateX(4px);
}
/* ===== Hero section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    isolation: isolate;
    /*padding-top: calc(var(--header-h) + var(--nav-h));*/
    padding-top: 30px;
    margin-top: 0;
    z-index: 999;
}

.hero__bg {
    position: absolute;
    inset: 0;
    background-image: url('assets/hero-bg.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background:
            linear-gradient(180deg, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.35) 18%, rgba(0, 0, 0, 0.20) 30%, rgba(0, 0, 0, 0.45) 75%, rgba(0, 0, 0, 0.55) 100%);
    z-index: -1;
}


/* ===== Hero content ===== */
.hero__content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 60px;
    padding-bottom: 100px;
    position: relative;
    z-index: 2;
}

.hero__logo {
    margin-bottom: 24px;
}

.hero__logo img {
    width: clamp(220px, 28vw, 360px);
    height: auto;
    filter: drop-shadow(0 6px 24px rgba(0, 0, 0, 0.5));
}

.hero__title {
    font-size: clamp(28px, 3.4vw, 55px);
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.6;
    letter-spacing: 0.01em;
    text-transform: uppercase;
    margin: 200px 0 24px;
    max-width: 1400px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.6);
    color: #fff;
}

.hero__subtitle {
    font-size: 28px;
    letter-spacing: 7%;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-text-muted);
    font-family: 'Oswald';
    max-width: 1200px;
    margin: 0 0 80px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
}

.hero__actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

h2 {
     font-size: var(--font-size-header);
    letter-spacing: 17%;
    font-family: Arial, sans-serif;
    font-weight: 400;
    text-transform: uppercase;
    margin-bottom: 50px;
}

p {
    font-family: Arial, sans-serif;
}

.features--desc {
     font-size: var(--font-size-standart);
    line-height: 1.8;
    letter-spacing: 17%;
    text-transform: uppercase;
}

.features--list {
    margin-top: 100px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
}

.feature {
    background: #9E0A24;
    color: #fff;
    padding: 20px;
    text-transform: uppercase;
    line-height: 1.8;
    letter-spacing: 17%;
}
.feature--title {
    display: flex;
    align-items: center;
    font-weight: bold;
    font-family: Arial, sans-serif;
    margin-bottom: 15px;
}
.feature--title span {
    width: 98px;
    height: 98px;
    border: 2px solid #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 45px;
}

.long-text  * {
    color: #fff;
    text-transform: uppercase;
    line-height: 1.8;
    letter-spacing: 17%;
}

.long-text {
    background: url("assets/long-text-bg.webp") no-repeat;
    background-size: cover;
    padding-top: var(--section-gap);
    padding-bottom: var(--section-gap);
}

.info {
    border-left: 1px solid #fff;
    border-right: 1px solid #fff;
    padding: 0 68px;
    margin-top: 80px;
     font-size: var(--font-size-header);
    text-align: center;
}

p {
    line-height: 1.8;
    letter-spacing: 17%;
    font-family: Arial, sans-serif;
     font-size: var(--font-size-standart);
}

.complect-list {
    display: flex;
    justify-content: space-between;
    margin-top: 100px;
    gap: 30px;
}

.complect--item {
    background: #9E0A24;
    color: #fff;
    font-size: 28px;
    line-height: 1.4;
    display: flex;
    flex-direction: column;
    margin-bottom: 25px;
    padding: 20px;
    max-width: 360px;
}

.complect--item p {
    flex: 1;
    display: flex;
    align-items: center;
}

.complect p:not(.complect--item p) {
    text-transform: uppercase;
}

.complect--item span {
    display: flex;
    width: 100%;
    justify-content: center;
    align-items: center;
    gap: 30px;
    font-family: "TD Cyrillic";
    font-size: 40px;
}

.complect--item span:before {
    content: "";
    display: block;
    height: 1px;
    width: 50px;
    background: #fff;
}

.complect--item span:after {
    content: "";
    display: block;
    height: 1px;
    width: 50px;
    background: #fff;
}

.complect-list--right, .complect-list--left {
    flex: 1;
}

.complect-list img {
    width: 100%;
    height: auto;
    flex: 0;
}

.complect-list {
    display: flex;
    gap: 20px;
}

.complect-list--left {
    flex: 0 0 360px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.complect-list--right {
    flex: 0 0 360px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.complect-list img {
    flex: 1 1 auto;
    width: 100%;
    height: auto;
    object-fit: contain;
}

.complect-info {
    border-left: 2px solid #999999;
    padding-left: 20px;
    margin-top: 60px;
}

.tabs-wrap {
    height: 172px;
    background: url("assets/tabs-bg.png") #9E0A24;
    background-repeat: no-repeat;
    display: flex;
    justify-content: center;
    background-size: cover;
}

.tabs {
    display: inline-flex;
    justify-content: center;
    padding: 23px 57px 0;
    border-radius: 110px 110px 0 0;
    background: #fff;
    box-shadow: inset 0 4px 4px 0 rgba(0,0,0,0.25);
    margin-top: 30px;
    gap: 100px;
}

.tab {
    font-size: 40px;
    letter-spacing: 17%;
    font-family: Arial, sans-serif;
    text-transform: uppercase;
    padding: 10px 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.tab--active {
    background: url("assets/tab.png") no-repeat;
    background-size: 100% 100%;
    box-shadow: 0 4px 4px 0 rgba(0,0,0,0.25);
    border-radius: 80px;
}

.tab-content {
    padding-top: 60px;
}

.exploded-view--mobile {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

@media (max-width: 768px) {
    .exploded-view--descktop {
        display: none;
    }
    .exploded-view--mobile {
        display: grid;
    }
}

.exploded-view__image img {
    width: 100%;
    height: auto;
    display: block;
}

.exploded-view__labels {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.label-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Линия тянется автоматически */
.label-item__line {
    flex: 0 0 auto;
    width: 60px; /* Базовая длина */
    height: 1px;
    background: #ccc;
    position: relative;
}

/* Точка на конце линии */
.label-item__line::after {
    content: '';
    position: absolute;
    right: -4px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: #c41e3a;
    border-radius: 50%;
}

.label-item__content {
    flex: 1;
}

.label-item__content h3 {
    color: #c41e3a;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0 0 8px 0;
}

.label-item__content p {
    color: #333;
    font-size: 13px;
    line-height: 1.4;
    margin: 0;
}


@media (max-width: 768px) {
    .exploded-view--mobile {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .label-item__line {
        width: 30px;
    }
}

.calculator {
    font-family: Arial, sans-serif;

}
.calculator__title {
    margin-bottom: 100px;
}

.calculator__wrapper {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 60px;
}

/* LEFT */

.calculator__left {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.calculator__preview {
    position: relative;

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

    min-height: 420px;
}

.calculator__image {
    width: 420px;
    max-width: 100%;
}

.calculator__size {
    position: absolute;
    right: 120px;
    bottom: 40px;

    font-size: 120px;
    font-weight: 700;
    line-height: 1;

    color: #a5001e;
}

.calculator__size span {
    font-size: 48px;
}

/* GROUPS */

.calculator__groups {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.calculator__group {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.calculator__subtitle {
    font-size: 24px;
    font-weight: 600;
}

.calculator__buttons,
.calculator__diameters,
.calculator__options-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-family: 'Geologica', sans-serif;
    font-weight: 300;
}

.calculator__buttons {
    max-width: 600px;
}

/* CHIPS */

.calculator__chip input,
.calculator__diameter input,
.calculator__option input,
.calculator__policy input {
    display: none;
}

.calculator__chip span {
    display: flex;
    align-items: center;
    justify-content: center;

    padding: 12px 18px;

    border: 1px solid #d3d3d3;
    background: #fff;

    font-size: 14px;
    text-transform: uppercase;

    cursor: pointer;
    transition: .2s;
}

.calculator__chip input:checked + span {
    background: #a5001e;
    border-color: #a5001e;
    color: #fff;
}

/* DIAMETERS */

.calculator__diameter {
    cursor: pointer;
}

.calculator__diameter span {
    transition: .2s;
}

.calculator__diameter-number {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;

    width: 105px;
    height: 110px;

    border: 1px solid #d3d3d3;
    background: #fff;

    font-size: 40px;
    font-weight: 700;
}

.calculator__diameter-square {
    display: flex;
    justify-content: center;
    margin-left: 5px;
    margin-right: 5px;
    border-top: 1px solid #999;
    margin-top: 5px;
    font-size: 13px;
    width: 80%;
    padding: 10px 0;
}

.calculator__diameter input:checked + .calculator__diameter-number {
    background: #a5001e;
    border-color: #a5001e;
    color: #fff;
}

.calculator__diameter input:checked + .calculator__diameter-number .calculator__diameter-square {
    border-color: #fff;
}

/* RIGHT */

.calculator__right {
    width: 40%;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.calculator__card {
    padding: 30px;
    border-radius: 20px;
    background: #393633;
    color: #fff;
    box-shadow: 0 4px 10px #9E0A24;
    margin-left: 30px;
    margin-right: 30px;
}

.calculator__card-inner {
    background: #282726;
    box-shadow: 0 4px 10px #9E0A24;
    border-radius: 20px;
    padding: 60px 30px;
}

.calculator__price {
    margin-bottom: 40px;
     font-size: var(--font-size-header);
    font-weight: 500;
    font-family: Oswald, sans-serif;
    text-align: center;
}

.calculator__price span {
    font-size: 30px;
}

.calculator__info {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.calculator__line {
    padding-bottom: 10px;
    text-transform: uppercase;
    border-bottom: 1px solid rgba(255,255,255,.2);
    font-family: Arial, sans-serif;
    font-size: 13px;
    font-weight: bold;
    letter-spacing: 17%;
}

.calculator__btn {
    width: 100%;
    height: 78px;
    font-family: Arial, sans-serif;
    letter-spacing: 17%;
    border: none;
    border-radius: 78px;
    box-shadow: 0 4px 4px 0 rgba(0,0,0,0.2);
    background: #9E0A24;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s;
}

.calculator__btn:hover {
    opacity: 0.8;
}

.calculator__btn--gray {
    margin-top: 15px;
    background: url("assets/bg-btn-gray.png") no-repeat;
    background-size: cover;
}

.calculator__policy {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-top: 30px;
    font-size: 12px;
    line-height: 1.4;
    font-family: Arial, sans-serif;
    letter-spacing: 17%;
    font-weight: bold;
    text-transform: uppercase;
}

.calc-explonation {
    margin: 30px 0 0;
    font-size: 12px;
    text-align: center;
    font-family: Arial, sans-serif;
    letter-spacing: 17%;
    font-weight: bold;
    text-transform: uppercase;
}
.calculator__policy::before {
    content: "";
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    background-color: #9E0A24;
    background-image: url("assets/check.svg");
    background-repeat: no-repeat;
    background-position: center center;
    margin-top: 2px;
    background-size: 70% 70%;
}

/* OPTIONS */

.calculator__option {
    width: 100%;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-family: var(--font-main);
    letter-spacing: 17%;
    font-size: 16px;
}

.calculator__option::before {
    content: "";
    width: 20px;
    height: 20px;
    border-radius: 3px;
    border: 1px solid #222;
    flex: 0 0 20px;
	display: none;
}

.calculator__option:has(input:checked):before {
    content: "";
    background-color: #9E0A24;
    border-color: #9E0A24;
    background-image: url("assets/check.svg");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: 70% 70%;
}

.calculator__diameters {
    max-width: 85%;
}
/* RESPONSIVE */

@media (max-width: 1100px) {

    .calculator__wrapper {
        flex-direction: column;
    }

    .calculator__right {
        width: 100%;
    }

}

@media (max-width: 768px) {

    .calculator {
        padding: 80px 0;
    }

    .calculator__title {
        font-size: 30px;
    }

    .calculator__preview {
        min-height: auto;
    }

    .calculator__size {
        right: 0;
        bottom: 0;

        font-size: 72px;
    }

    .calculator__size span {
        font-size: 32px;
    }

    .calculator__diameter-number {
        width: 70px;
        height: 70px;

        font-size: 28px;
    }

}

.calculator__diameter.hide, .calculator__option.hide {
    display: none;
}

.text-info {
    display: flex;
    align-items: center;
    gap: 50px;
    padding: 38px 24px;
    background: #406C3F;
    border-radius: 14px;
    color: #fff;
    text-transform: uppercase;
     font-size: var(--font-size-standart);
    letter-spacing: 17%;
}

.main-form {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.main-form__row {
    display: flex;
    gap: 25px;
}

.main-form__field {
    position: relative;
    flex: 1;
    height: 66px;
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.main-form__field::before {
    content: "";
    position: absolute;
    left: 24px;
    margin-top: -5px;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    z-index: 2;
}

.main-form__field--name::before {
    content: "";
    width: 16px;
    height: 12px;
    background:url("assets/icon-mail.svg");
}

.main-form__field--phone::before {
    content: "";
    width: 14px;
    height: 14px;
    background:url("assets/icon-phone.svg");
}

.main-form__field input {
    width: 100%;
    height: calc(100% - 10px);
    margin-top: -5px;
    padding: 0 30px 0 60px;
    border: 0;
    outline: 0;
    background: transparent;
    color: #fff;
    font-family: var(--font-main);
    font-size: 16px;
    letter-spacing: .08em;
}

.main-form__field input::placeholder {
    color: rgba(255,255,255,.8);
}

.main-form__submit {
    width: 100%;
    min-height: 78px;
    border: 0;
    cursor: pointer;
    background: #9E0A24;
    color: #fff;
    text-transform: uppercase;
    font-family: var(--font-main);
     font-size: var(--font-size-standart);
    font-weight: 700;
    letter-spacing: .05em;
    transition: .3s;
    border-radius: 3px;
    box-shadow: 0 4px 10px 0 #9E0A24;
}

.main-form__submit:hover {
    opacity: .9;
}

.main-form__agree {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    cursor: pointer;
}

.main-form__agree input {
    display: none;
}

.main-form__agree::before {
    content: "";
    flex: 0 0 24px;
    height: 24px;
    border-radius: 2px;
    border: 1px solid #fff;
    transition: .2s;
}

.main-form__agree:has(input:checked)::before {
    content: "";
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url("assets/check.svg");
    background-color: #9E0A24;
    background-repeat: no-repeat;
    background-position: center center;
    border-color: #9E0A24;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
}

.main-form__agree-text {
    color: #fff;
    font-size: 15px;
    line-height: 1.7;
    text-transform: uppercase;
    letter-spacing: .15em;
}

.main-form__field--name {
    background: url("assets/form-input-bg.png") center/cover no-repeat;
    background-size: 100% 100%;
    border-radius: 10px;
}

.main-form__field--phone {
    background: url("assets/form-input-bg.png") center/cover no-repeat;
    background-size: 100% 100%;
    border-radius: 10px;
}

.main-form--section {
    background: url("assets/main-form-section-bg.webp") no-repeat;
    background-size: cover;
    padding: 129px 105px;
}

.main-form--wrap {
    background: rgba(0,0,0,0.25);
    border-radius: 30px;
    padding: 143px 116px;
    position: relative;
}

.main-form--wrap .header__socials {
    position: absolute;
    right: 43px;
    bottom: 35px;
    max-width: 300px;
    gap: 40px;
}
.main-form--wrap .social {
    width: 60px;
    height: 60px;
}
.main-form--inner {
    max-width: 580px;
}

.main-form--inner h2 {
    color: #9E0A24;
    margin: 60px 0;
    font-family: var(--font-secondary);
    font-size: 48px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 7px rgba(0,0,0,0.25);
}

.main-form--inner p {
    color: #fff;
     font-size: var(--font-size-standart);
    letter-spacing: 7%;
    margin-bottom: 60px;
}

.technologies-img {
    margin: 70px 0 130px;
}

.yurta-types {
    margin-bottom: 90px;
}

.yurta-types *, .technologies p {
     font-size: var(--font-size-standart);
    letter-spacing: 17%;
    text-transform: uppercase;
}

.yurta-types h3 {
    margin: 60px 0 60px;
}

.yurta-types h4 {
    margin-top: 50px;
}

.yurta-types p {
    margin: 0;
    line-height: 1.9;
}

.yurta-types li {
    margin-bottom: 20px;
}

.yurta-type__advantages {
    list-style: inside;
    padding-left: 13px;
}

.yurta-type__intro {
    margin-bottom: 50px;
}

.heating {
    display: flex;
}

.heating-left {
    width: 54%;
}

.heating-right {
    width: 47.6%;
}

.heating-left {
    background: #282726;
    color: #fff;
    padding: 160px 50px 65px;
}

.heating-left {
     font-size: var(--font-size-standart);
    letter-spacing: 17%;
    text-transform: uppercase;
}

.heating--subtitle {
    font-weight: bold;
    margin: 86px 0;
}

.heating--complect p {
    padding-left: 50px;
    margin: 86px 0;
}

.heating--complect {
    padding-left: 30px;
}
.heating--complect ul {
    padding-left: 50px;
    position: relative;
}

.heating--complect ul:before {
    content: "";
    width: 4px;
    height: calc(100% - 21px);
    background: #9E0A24;
    position: absolute;
    top: 21px;
    left: 0;
}

.heating--complect ul li {
    line-height: 3;
    position: relative;
}

li:before {
    content: "";
    display: block;
    width: 20px;
    height: 20px;
    background: #9E0A24;
    border-radius: 50%;
    left: -58px;
    top: 21px;
    position: absolute;
}

.heating-right img {
    height: 100%;
    object-fit: cover;
}

.heating {
    margin-bottom: 0;
}

.faq {
    background: url("assets/faq-bg.webp") no-repeat;
    background-size: cover;
    margin-top: 0;
    padding-top: var(--section-gap);
    padding-bottom: var(--section-gap);
}

.faq * {
    color: #fff;
    text-transform: uppercase;
}

.faq-subtitle {
    margin-bottom: 68px;
}

details summary {
    list-style: none;
    cursor: pointer;
}

details summary::-webkit-details-marker {
    display: none;
}

summary {
    position: relative;
     font-size: var(--font-size-standart);
    font-weight: bold;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    padding: 60px 60px 60px 0;
    border-top: 1px solid rgba(206,206,206, 0.3);
    letter-spacing: 17%;
}

.faq-item:last-child {
    border-bottom: 1px solid rgba(206,206,206, 0.3);
}

summary:after {
    content: "";
    display: block;
    width: 63px;
    height: 20px;
    background: url("assets/arrow.png") no-repeat;
    background-size: cover;
    position: absolute;
    right: 78px;
}

details[open] summary:after {
    transform: rotate(180deg);
}

details p {
    margin: 60px 0;
}

details ol {
    list-style-position: inside;
     font-size: var(--font-size-standart);
    text-transform: uppercase;
    letter-spacing: 17%;
}

details ol li {
    margin-bottom: 40px;
}

.columns {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-transform: uppercase;
    margin-top: 100px;
}

.columns p {
    margin-bottom: 60px;
}

.columns > div {
    width: calc(50% - 30px);
}

.columns-left {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 30px;
}

.columns-left img {
    width: calc(50% - 15px);
}

.columns-left img:first-child {
    width: 100%;
}

.gallery h2 {
    text-align: center;
}


.gallery__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto 40px;
    margin-top: 100px;
}

.gallery__item {
    height: 100%;
    overflow: hidden;
    border-radius: 12px;
    background: #f0f0f0;
}

.gallery__item img {
    width: 100%;
    height: 100%;
    border-radius: 14px;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.gallery__item:hover img {
    transform: scale(1.05);
}


.gallery__more {
    display: flex;
    align-items: center;
    gap: 20px;
    margin: 0 auto;
    padding: 12px 24px;
    background: transparent;
    border: 0;
    border-radius: 30px;
    cursor: pointer;
     font-size: var(--font-size-standart);
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #333;
    transition: all 0.3s ease;
}

.gallery__more-icon {
    flex-shrink: 0;
}

.gallery__grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 45px;
    height: 800px; /* фиксированная высота всей сетки */
}

.gallery__item {
    overflow: hidden;
    border-radius: 12px;
    background: #f0f0f0;
}

.gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* ключевое свойство */
    object-position: center;
    display: block;
}

/* Левое верхнее - большое */
.gallery__item:nth-child(1) {
    grid-column: 1;
    grid-row: 1;
}

/* Центральное верхнее */
.gallery__item:nth-child(2) {
    grid-column: 2;
    grid-row: 1;
}

/* Правое высокое - на 2 строки */
.gallery__item:nth-child(3) {
    grid-column: 3;
    grid-row: 1 / 3;
}

/* Левое нижнее - маленькое */
.gallery__item:nth-child(4) {
    grid-column: 1;
    grid-row: 2;
}

/* Центральное нижнее */
.gallery__item:nth-child(5) {
    grid-column: 2;
    grid-row: 2;
}

.gallery__grid {
    display: flex;
    gap: 60px;
}

.gallery__column {
    flex: 1;

    display: flex;
    flex-direction: column;
    gap: 60px;
}

.gallery__item {
    overflow: hidden;
}

.gallery__item img {
    width: 100%;
    height: 100%;

    display: block;

    object-fit: cover;
}

.gallery__item--470 {
    height: 470px;
}

.gallery__item--317 {
    height: 317px;
}

.gallery__item--full {
    height: 847px; /* 470 + 317 + 60 */
}

footer {
    background: #262626;
    position: relative;
    padding: 112px 72px;
    color: #fff;
    letter-spacing: 17%;
    font-weight: bold;
    text-transform: uppercase;
}

footer:before {
    content: "";
    display: block;
    width: 52px;
    height: 100%;
    background: url("assets/footer-left-bg.png");
    background-size: cover;
    position: absolute;
    top: 0;
    left: 0;
}

footer:after {
    content: "";
    display: block;
    width: 52px;
    height: 100%;
    background: url("assets/footer-right-bg.png");
    background-size: cover;
    position: absolute;
    top: 0;
    right: 0;
}

.footer-row-mobile {
    display: none;
}
.footer-row {
    display: flex;
    gap: 50px;
}

footer h3 {
    text-transform: uppercase;
}

footer a {
    display: block;
    margin-bottom: 36px;
    color: #CECECE;
    font-size: 13px;
}

footer a:hover {
    color: #fff;
}

footer p {
    font-size: 13px;
}

.footer-contact-links {
    max-width: 360px;
    margin-left: auto;
}

.footer-images {
    max-width: 154px;
}

.footer-social {
    display: flex;
    gap: 10px;
    align-items: center;
     font-size: var(--font-size-standart);
    font-weight: bold;
    margin-top: 68px;
    color: #fff;
}

.footer-secondary-text {
    color: #CECECE;
    font-size: 13px;
}

.footer-contacts {
    max-width: 280px;
}

.phone-mail {
    margin-top: 86px;
}

.phone-mail a {
    font-size: 25px;
    margin-bottom: 5px;
    color: #fff;
}

.footer-nav {
    max-width: 345px;
    margin-left: 50px;
    margin-right: 30px;
}

.footer-cookies {
    background: #fff;
    padding: 40px 50px;
    display: flex;
    align-items: center;
}

.footer-cookies p {
    font-size: 15px;
    color: #000;
    text-transform: none;
    font-family: Tahoma, sans-serif;
    letter-spacing: 0;
    max-width: 1000px;
}

.footer-cookies p a {
    display: inline;
    text-decoration: underline;
    color: #000;
}

.footer-cookies-right {
    width: 480px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: auto;
}

.footer-cookies-right a {
    display: flex;
    background: #262626;
    font-size: 13px;
    color: #fff;
    justify-content: center;
    align-items: center;
    width: 345px;
    height: 50px;
    max-width: 100%;
    margin-bottom: 0;
}

.footer-bottom {
    background: #9E0A24;
    display: flex;
    height: 60px;
    align-items: center;
    padding: 0 50px;
    gap: 30px;
    font-size: 14px;
    font-family: var(--font-secondary);
}

.footer-bottom p {
    font-size: 14px;
    color: #fff;
    letter-spacing: 0;
    font-family: var(--font-secondary);
}

.footer-bottom a {
    font-size: 14px;
    color: #fff;
    text-decoration: underline;
}

@media (max-width: 1450px) {
    .phone-mail a {
        font-size: var(--font-size-standart);
    }

    .phone-mail {
        margin-top: 50px;
    }

    .footer-row {
        position: relative;
    }

    .footer-social {
        position: absolute;
        bottom: 0;
    }

    .nav__list {
        gap: 30px;
    }
}
@media (max-width: 1280px) {
    .calculator__right {
        width: 60%;
    }

    .complect-list--left, .complect-list--right {
        flex: 0 0 30%;
    }

    .complect-list--left + div {
        align-self: center;
    }

    .footer-row {
        flex-wrap: wrap;
    }
    .footer-row > div {
        width: 50%;
        justify-content: space-between;
        margin: 0px 0px 30px;
    }

    .footer-social {
        position: static;
    }

    .footer-cookies p {
        padding-right: 40px;
    }
    .columns {
        align-items: flex-start;
    }

    summary:after {
        content: "";
        display: block;
        width: 40px;
        height: 12px;
        background: url(assets/arrow.png) no-repeat;
        background-size: cover;
        position: absolute;
        right: 0;
    }

    .nav__link {
        font-size: 14px;
    }

    .header__socials, .header__right {
        gap: 40px;
    }
}

.technologies-img-swiper {
    display: none;
}
.nav-mobile {
    display: none;
    background: transparent;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-mobile__inner {
    padding: 12px 16px;
}

.nav-mobile__list {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.nav-mobile__link {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-white);
    white-space: nowrap;
    transition: color var(--transition);
}

.nav-mobile__link:hover {
    color: var(--color-primary);
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    width: 100dvw;
    height: 100vh;
    height: 100dvh;
    z-index: 9999;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition);
}

.mobile-menu--open {
    pointer-events: auto;
    opacity: 1;
}

.mobile-menu__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.mobile-menu__panel {
    position: absolute;
    top: 0;
    left: 0;
    width: min(420px, 88vw);
    height: 100%;
    background: var(--color-dark);
    color: var(--color-white);
    padding: 60px 28px 28px;
    transform: translateX(-100%);
    transition: transform var(--transition);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
}

.mobile-menu--open .mobile-menu__panel {
    transform: translateX(0);
}

.mobile-menu__close {
    position: absolute;
    top: 12px;
    right: 14px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    color: var(--color-white);
    font-size: 32px;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    transition: color var(--transition);
}

.mobile-menu__close:hover {
    color: var(--color-primary);
}

.mobile-menu__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.mobile-menu__link {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-white);
    transition: color var(--transition);
}

.mobile-menu__link:hover {
    color: var(--color-primary);
}

.mobile-menu__contact {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 20px;
    margin-top: auto;
}

.mobile-menu__phone {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-white);
}

.mobile-menu__mail {
    font-size: 12px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.75);
}
@media (max-width: 769px) {
    .tab {
        font-size: 14px;
    }

    .tabs-wrap {
        height: 56px;
    }
    .tabs {
        display: inline-flex;
        justify-content: center;
        padding: 10px 30px 0;
        border-radius: 110px 110px 0 0;
        background: #fff;
        box-shadow: inset 0 4px 4px 0 rgba(0, 0, 0, 0.25);
        margin-top: 10px;
        gap: 25px;
    }
    .tab {
        font-size: 14px;
        letter-spacing: 17%;
        font-family: Arial, sans-serif;
        text-transform: uppercase;
        padding: 18px 15px;
        display: flex;
        justify-content: center;
        align-items: center;
        cursor: pointer;
    }

    .tab--active {
        border-radius: 30px;
    }

    .exploded-view--mobile .container {
        display: flex;
    }

    .exploded__image {
        width: 50%;
    }

    .exploded-view--mobile img {
        width: 100%;
    }

    .header__burger {
        display: flex;
        margin-bottom: -10px;
    }

    .header__right {
        display: none;
    }

    .nav {
        display: none;
    }

    .nav-mobile {
        display: block;
    }

    .header__socials {
        order: 9;
    }

    .header .header__socials a:last-child {
        display: none;
    }

    .header__inner {
        padding-left: 30px;
        padding-right: 30px;
        justify-content: space-between;
    }

    .header__socials {
        justify-content: flex-end;
    }

    .nav-mobile {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-mobile__list {
        justify-content: space-around;
    }

    h1, .hero__subtitle {
        text-align: left;
    }
    .hero__content {
        align-items: flex-start;

    }

    .hero__actions {
        justify-content: flex-start;
    }

    .hero__actions .btn--outline {
        display: none;
    }

    .hero__content {
        padding-bottom: 60px;
    }

    .features--list {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 25px;
    }

    .long-text h3 {
        font-size: var(--font-size-standart);
        margin-bottom: 0;
    }

    .long-text p {
        margin-top: 0;
    }

    .info {
        padding: 0 10px;
        font-size: var(--font-size-standart);
    }

    .complect--item span {
        font-size: 20px;
        gap: 10px;
    }

    .complect--item span:before {
        content: "";
        width: 17px;
    }
    .complect--item span:after {
        content: "";
        width: 17px;
    }

    .complect--item {
        max-width: 90px;
        padding: 7px;
    }

    .complect--item p {
        font-size: 9px;
        letter-spacing: 0;
    }

    .complect-list--left, .complect-list--right {
        flex: 0 0 90px;
    }

    .calculator__diameter-number {
        width: 76px;
        height: 101px;
        font-size: 20px;
    }

    .calculator__right {
        width: 100%;
    }

    .calculator {
        padding: 20px 0;
    }

    .main-form--section {
        padding: 25px;
    }

    .main-form--wrap {
        padding: 40px 20px 50px;
    }

    .main-form--inner {
        max-width: 100%;
    }

    .main-form--wrap .header__socials {
        position: static;
        margin: 80px auto 0;
        justify-content: space-between;
    }

    .main-form--wrap .header__socials {
        position: static;
        margin: 80px 0 0;
        justify-content: space-between;
        width: 100%;
        max-width: 100%;
    }

    .main-form__row {
        display: flex;
        gap: 25px;
        flex-direction: column;
    }

    .main-form__row .main-form__field {
        flex: auto;
        background: #fff;
        color: #999;
    }

    .main-form__field input {
        color: #7E868E;
    }

    .main-form__field input::placeholder {
        color: #7E868E;
    }
    .main-form__field--name::before {
        content: "";
        width: 17px;
        height: 12px;
        background: url(assets/icon-mail-gray.png);
    }
    .main-form__field--phone::before {
        content: "";
        width: 15px;
        height: 14px;
        background: url(assets/icon-phone-gray.png);
    }

    .technologies-img {
        display: none;
    }
    .technologies-img-swiper {
        display: block;
        margin: 50px 0;
    }

    .technologies-img-swiper img {
        width: 100%;
    }

    .swiper-wrapper {
        padding-bottom: 40px;
    }

    .swiper-pagination-bullet {
        width: 80px;
        border-radius: 2px;
        height: 4px;
    }

    .swiper-pagination-bullet-active {
        background: #000;
    }

    .heating {
        display: flex;
        flex-direction: column;
    }

    .heating > div {
        width: 100%;
    }

    .heating-right {
        padding: 25px 25px 67px;
        background: #282726;
    }

    .heating-right img {
        border-radius: 16px;
    }

    .heating-left {
        background: #282726;
        color: #fff;
        padding: 67px 50px 65px;
    }

    summary {
        padding: 30px 60px 30px 0;
    }

    details p {
        margin: 30px 0;
    }

    .columns {
        align-items: flex-start;
        flex-direction: column-reverse;
    }

    .columns > div {
        width: 100%;
    }

    .gallery__column:has(.gallery__item--full) {
        display: none;
    }

    .gallery__item--470 {
        height: 159px;
    }

    .gallery__item--317 {
        height: 107px;
    }

    .gallery__grid, .gallery__column {
        height: auto;
        gap: 30px;
    }

    .gallery__grid {
        margin-top: 0;
    }
    .footer-row {
        display: none;
    }
    footer:after, footer:before {
        content: "";
        display: none;
    }

    .footer-row-mobile {
        display: flex;
        flex-direction: column;
    }

    .footer-mobile-nav {
        display: flex;
        gap: 38px;
        flex-wrap: wrap;
        margin-bottom: 30px;
        padding: 0 10px;
    }
    footer a {
        margin-bottom: 0;
    }
    .footer-mobile-nav a {
        width: calc(50% - 20px);
        text-align: center;
        line-height: 1.8;
        color: #fff;
        padding: 15px 5px;
        border-bottom: 1px solid #fff;
        align-items: center;
    }

    .footer-cookies {
        display: none;
    }
    .h77 {
        height: 77px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .footer-row-mobile .btn--primary {
        border-radius: 2px;
        margin: 50px 0;
    }

    .work-hours + a {
        font-size: 22px;
        margin-bottom: 20px;
        color: #fff;
    }

    .work-hours + a + a {
        font-size: 22px;
        margin-bottom: 20px;
        color: #fff;
    }

    footer {
        background: url(assets/bg-footer-mobile.png) no-repeat center bottom #262626;
        background-size: 100%;
        padding-bottom: 80px;
        padding-left: 20px;
        padding-right: 20px;
        padding-top: 50px;
    }
    .footer-bottom {
        background: #262626;
    }

    .header-scroll-fix {
        height: 100px;
    }

    .header__socials, .header__right {
        gap: 10px;
    }

    .nav-mobile {
        
    }
}

@media (max-width: 450px) {
    .header__logo img {
        height: 65px;
    }

    .header__left {
        position: relative;
        left: 19px;
    }

    .btn--lg {
        padding: 20px 28px;
    }

    .hero {
        padding-bottom: 50px;
    }

    .calculator__card {
        margin-left: 0;
        margin-right: 0;
    }

    .text-info img {
        width: 30px;
        height: 30px;
    }

    .feature--title span {
        width: 50px;
        height: 50px;
        padding: 5px;
    }

    .feature--title span img {
        width: 100%;
    }

    .tabs {
        display: inline-flex;
        justify-content: center;
        padding: 10px 10px 0;
    }

    .calculator__card-inner {
        padding: 30px 10px;
    }

    .calculator__card {
        padding: 15px;
    }

    .calculator__btn {
        width: 100%;
        height: 49px;
        letter-spacing: 7%;
        border: none;
        border-radius: 78px;
        font-size: 13px;
    }

    .calculator__policy {
        font-size: 7px;
    }

    .calc-explonation {
        font-size: 9px;
    }

    .calculator__line {
        font-size: 11px;
    }

    .calculator__counter {
        display: none;
    }

    .text-info p {
        font-size: 9px;
    }

    .text-info {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 10px 10px;
    }

    .main-form--inner h2 {
        margin: 30px 0;
    }

    .main-form--section {
        padding: 25px 10px;
    }

    .heating-left {
        background: #282726;
        color: #fff;
        padding: 67px 25px 65px;
    }
    .heating--complect p {
        padding-left: 50px;
        margin: 30px 0;
    }
    .heating--subtitle {
        font-weight: bold;
        margin: 15px 0;
    }

    .nav-mobile {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding: 10px 5px;
    }
}
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
    -webkit-text-fill-color: #fff;
    caret-color: #fff;
    background-color: transparent !important;
    transition: background-color 9999s ease-in-out 0s;
}

.footer-cookies {
    position: fixed;
    width: 100%;
    bottom: 0;
    left: 0;
    border-top: 1px solid #ccc;
}

.newset {
    display: none;
}

.gallery__more img {
    transition: transform .6s ease;
}

.gallery__more.rotated img {
    transform: rotate(360deg);
}

.calculator__price {
    transition:
        opacity .3s ease,
        transform .3s ease;
}

.calculator__price.is-fixed {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  text-align: center;
    background: #282726;
	padding: 30px;
	margin-bottom: 0;
	animation: priceShow .3s ease;
}

@keyframes priceShow {
    from {
        opacity: 0;
        transform: translateY(100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 450px) {
	.hero__bg {
			background-image: url(assets/hero-mobile.jpg);
	}
	
	.hero__subtitle {
    font-size: 20px;
    margin-bottom: 30px;
	}
	
	.hero__title {
		margin-top: 60px;
	}
	
	.hero {
    position: relative;
    min-height: auto;
	padding-top :200px;
	}
	
	.long-text {
    background: url(assets/long-text-bg-mobile.jpg) no-repeat;
	background-size: cover;
	}
	
	.main-form--section {
        background: url(assets/main-form-section-bg-mobile.jpg) no-repeat center;
        background-size: cover;
    }
	
	.container.nav-mobile__inner {
		padding: 0 10px;
	}
	
	.nav-mobile__link {
    font-size: 9px;
	}
}

.faq {
   background: #282726;
}

summary:after {
    display: none;
}

.fundament-columns {
    display: flex;
    align-items: center;
}

.fundament-columns div {
    width: 50%;
}

@media (max-width: 769px) {
    .fundament-columns {
        flex-direction: column-reverse;
        gap: 20px;
    }

    .fundament-columns div {
        width: 100%;
    }
}