:root {
  --navy: #10243c;
  --navy-soft: #1a3552;
  --orange: #f47b20;
  --orange-dark: #d9600b;
  --cream: #fff8f0;
  --text: #15263a;
  --muted: #667386;
  --white: #fff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  overflow-x: clip;
  color: var(--text);
  font-family: "Manrope", Arial, sans-serif;
  background: #f4f6f8;
}

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

.container { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.92) 37%, rgba(255,255,255,.42) 65%, rgba(16,36,60,.12) 100%),
    url("assets/hero-gas-stove.png") center / cover no-repeat;
}

.header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 50%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 48px));
  min-height: 92px;
  padding: 0 18px;
  border-bottom: 1px solid rgba(16, 36, 60, .1);
  border-radius: 0 0 16px 16px;
  background: rgba(255,255,255,.74);
  backdrop-filter: blur(14px);
  transform: translateX(-50%);
  transition: min-height .25s ease, background .25s ease, box-shadow .25s ease;
}

.header.is-scrolled { min-height: 74px; background: rgba(255,255,255,.96); box-shadow: 0 12px 35px rgba(16,36,60,.12); }

.logo { display: flex; align-items: center; gap: 12px; }
.logo__icon { display: grid; width: 46px; height: 46px; color: white; place-items: center; border-radius: 14px; background: var(--orange); }
.logo__icon svg { width: 28px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.logo > span:last-child { display: grid; }
.logo strong { font-size: 17px; letter-spacing: -.02em; }
.logo small { margin-top: 2px; color: var(--muted); font-size: 11px; }

.header__contact { display: grid; justify-items: end; gap: 3px; }
.header__contact span { color: var(--muted); font-size: 12px; }
.header__contact a { font-size: 19px; font-weight: 800; }
.header__callback { display: flex; align-items: center; justify-content: center; overflow: hidden; width: 0; min-height: 42px; padding: 0; color: white; font-family: inherit; font-size: 12px; font-weight: 800; white-space: nowrap; border: 0; border-radius: 10px; background: var(--orange); opacity: 0; cursor: pointer; pointer-events: none; transform: translateY(-7px); transition: width .25s ease, padding .25s ease, opacity .2s ease, transform .25s ease, background .2s ease; }
.header.is-scrolled .header__callback { width: 142px; padding: 0 15px; opacity: 1; pointer-events: auto; transform: translateY(0); }
.header__callback:hover { background: var(--orange-dark); }
.header.is-scrolled .header__contact { display: none; }

.header-nav { display: flex; align-items: center; gap: clamp(14px, 1.7vw, 25px); margin-inline: auto; padding: 0 20px; }
.header-nav a { display: flex; align-items: center; gap: 8px; color: #4f5e70; font-size: 14px; font-weight: 700; white-space: nowrap; transition: color .2s ease; }
.header-nav a span { color: var(--orange); font-size: inherit; font-weight: 800; line-height: inherit; }
.header-nav a:hover { color: var(--orange-dark); }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 0; border-radius: 11px; background: var(--navy); cursor: pointer; }
.menu-toggle span { display: block; width: 100%; height: 2px; margin: 4px 0; border-radius: 2px; background: white; transition: .2s ease; }

.hero__content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, .72fr);
  gap: 88px;
  align-items: center;
  min-height: 100svh;
  padding-top: 156px;
  padding-bottom: 72px;
}

.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 22px; color: var(--orange-dark); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow span { width: 26px; height: 2px; background: var(--orange); }

h1 { max-width: 760px; margin: 0; color: var(--navy); font-size: clamp(42px, 5.2vw, 72px); line-height: 1.04; letter-spacing: -.055em; }
h1 span { display: block; color: var(--orange); }

.hero__offer { max-width: 650px; margin: 28px 0 0; color: #58677a; font-size: clamp(18px, 2vw, 23px); line-height: 1.55; }
.hero__offer strong { color: var(--navy); }

.benefits { display: flex; flex-wrap: wrap; gap: 13px 24px; margin: 36px 0 0; padding: 0; list-style: none; }
.benefits li { display: flex; align-items: center; gap: 9px; color: #425064; font-size: 14px; font-weight: 700; }
.benefits span { display: grid; width: 24px; height: 24px; color: var(--orange-dark); place-items: center; border-radius: 50%; background: #fff0e3; }

.hero__side { position: relative; }
.price-badge { position: absolute; z-index: 2; top: -48px; right: -30px; display: grid; width: 152px; height: 152px; color: white; text-align: center; place-content: center; border: 7px solid rgba(255,255,255,.8); border-radius: 50%; background: var(--orange); box-shadow: 0 18px 40px rgba(205, 90, 10, .26); transform: rotate(5deg); }
.price-badge__label { font-size: 10px; font-weight: 700; text-transform: uppercase; }
.price-badge strong { margin: 2px 0; font-size: 28px; line-height: 1; }
.price-badge small { font-size: 17px; }
.price-badge__term { font-size: 11px; font-weight: 700; }

.request-form { position: relative; padding: 38px; border: 1px solid rgba(16,36,60,.08); border-radius: 28px; background: rgba(255,255,255,.94); box-shadow: 0 30px 80px rgba(31, 50, 72, .16); backdrop-filter: blur(10px); }
.request-form__heading p { margin: 0 0 7px; color: var(--orange-dark); font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.request-form__heading h2 { margin: 0; color: var(--navy); font-size: 27px; line-height: 1.2; letter-spacing: -.03em; }
.request-form__heading > span { display: block; margin: 9px 0 27px; color: var(--muted); font-size: 13px; }
.request-form label { display: grid; gap: 8px; margin-bottom: 16px; }
.request-form label > span { color: #3d4b5e; font-size: 12px; font-weight: 700; }
.request-form input {
  width: 100%;
  height: 55px;
  padding: 0 17px;
  color: var(--text);
  font-family: "Manrope", Arial, sans-serif;
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
  border: 1px solid #dce1e7;
  border-radius: 12px;
  outline: none;
  background: #fbfcfd;
  transition: .2s ease;
}
.request-form input::placeholder { color: #9aa3af; font: inherit; opacity: 1; }
.request-form input:focus { border-color: var(--orange); box-shadow: 0 0 0 4px rgba(244,123,32,.1); }
.request-form .phone-field { position: relative; display: block; }
.request-form .phone-field__prefix {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 17px;
  color: var(--text);
  font-family: "Manrope", Arial, sans-serif;
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
  transform: translateY(-50%);
}
.request-form .phone-field input { padding-left: 48px; }
.request-form .request-form__consent { display: flex; align-items: flex-start; gap: 10px; margin: 4px 0 0; cursor: pointer; }
.request-form__consent input { flex: 0 0 auto; width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--orange); cursor: pointer; }
.request-form .request-form__consent span { color: #737f8f; font-size: 11px; font-weight: 500; line-height: 1.45; }
.request-form button { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 58px; margin-top: 22px; padding: 0 22px; color: white; font: 800 14px "Manrope", sans-serif; border: 0; border-radius: 12px; cursor: pointer; background: var(--orange); box-shadow: 0 12px 24px rgba(224, 99, 10, .25); transition: .2s ease; }
.request-form button:hover { background: var(--orange-dark); transform: translateY(-2px); }
.request-form button span { font-size: 22px; }
.request-form__policy { margin: 14px 8px 0; color: #8a94a2; font-size: 10px; line-height: 1.5; text-align: center; }
.request-form__success { margin: 16px 0 0; padding: 13px; color: #17623a; font-size: 12px; font-weight: 700; text-align: center; border-radius: 10px; background: #e9f8ef; }

.hero__glow { position: absolute; right: -220px; bottom: -380px; width: 850px; height: 850px; border-radius: 50%; background: rgba(244,123,32,.08); filter: blur(4px); }
.hero__grid { position: absolute; inset: 0; opacity: .035; background-image: linear-gradient(var(--navy) 1px, transparent 1px), linear-gradient(90deg, var(--navy) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(to right, transparent 25%, #000); }

.advantages {
  scroll-margin-top: 88px;
  padding: 112px 0 104px;
  background: #f5f7f9;
}

.advantages__heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .72fr);
  gap: 64px;
  align-items: end;
  margin-bottom: 48px;
}

.section-eyebrow {
  margin: 0 0 13px;
  color: var(--orange-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.advantages h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.06;
  letter-spacing: -.05em;
}

.advantages__heading > p {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.advantages__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.advantage-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 330px;
  padding: 28px 28px 27px;
  overflow: hidden;
  border: 1px solid #e2e7ec;
  border-radius: 22px;
  background: white;
  transition: transform .25s ease, box-shadow .25s ease;
}

.advantage-card:hover {
  z-index: 1;
  box-shadow: 0 22px 50px rgba(24, 43, 65, .11);
  transform: translateY(-6px);
}

.advantage-card__number {
  position: absolute;
  top: 25px;
  right: 25px;
  color: #c2cad3;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
}

.advantage-card__icon {
  display: grid;
  width: 64px;
  height: 64px;
  flex: 0 0 auto;
  margin-bottom: 42px;
  color: var(--orange);
  font-size: 27px;
  font-weight: 800;
  place-items: center;
  border-radius: 19px;
  background: #fff0e3;
}

.advantage-card__icon svg {
  width: 31px;
  height: 31px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.advantage-card h3 {
  min-height: 50px;
  margin: 0 0 12px;
  color: var(--navy);
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: -.025em;
}

.advantage-card p {
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.advantage-card__tag {
  align-self: flex-start;
  margin-top: auto;
  padding: 7px 11px;
  color: var(--orange-dark);
  font-size: 13px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: .05em;
  text-transform: uppercase;
  border-radius: 8px;
  background: #fff0e3;
}

.advantage-card--accent { border-color: #ffd6b6; background: var(--cream); }
.advantage-card--dark { color: white; border-color: var(--navy); background: var(--navy); }
.advantage-card--dark h3 { color: white; }
.advantage-card--dark p { color: rgba(255,255,255,.64); }
.advantage-card--dark .advantage-card__number { color: rgba(255,255,255,.32); }
.advantage-card--dark .advantage-card__icon { color: white; background: var(--orange); }
.advantage-card--dark .advantage-card__tag { color: white; background: var(--orange); }

.advantages__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-top: 32px;
  padding: 24px 28px;
  border-radius: 18px;
  background: white;
}

.advantages__footer p { display: grid; gap: 3px; margin: 0; }
.advantages__footer strong { color: var(--navy); font-size: 14px; }
.advantages__footer p span { color: var(--muted); font-size: 12px; }
.advantages__footer a { display: flex; align-items: center; gap: 18px; color: var(--orange-dark); font-size: 13px; font-weight: 800; }
.advantages__footer a span { font-size: 20px; transition: transform .2s ease; }
.advantages__footer a:hover span { transform: translateX(4px); }

.work-steps {
  scroll-margin-top: 74px;
  padding: 112px 0;
  color: white;
  background: var(--navy);
}

.work-steps__heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .65fr);
  gap: 64px;
  align-items: end;
  margin-bottom: 54px;
}

.work-steps h2 {
  margin: 0;
  color: white;
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.06;
  letter-spacing: -.05em;
}

.work-steps__heading > p {
  margin: 0 0 4px;
  color: rgba(255,255,255,.62);
  font-size: 15px;
  line-height: 1.75;
}

.steps-list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps-list::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 94px;
  right: 8%;
  left: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(244,123,32,.65) 12%, rgba(244,123,32,.65) 88%, transparent);
}

.step-card {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 330px;
  padding: 25px 25px 28px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 22px;
  background: #19314c;
}

.step-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.step-card__number {
  color: var(--orange);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
}

.step-card__time {
  padding: 6px 9px;
  color: rgba(255,255,255,.68);
  font-size: 10px;
  font-weight: 700;
  border-radius: 7px;
  background: rgba(255,255,255,.07);
}

.step-card__icon {
  display: grid;
  width: 64px;
  height: 64px;
  margin: 38px 0 38px;
  color: white;
  font-size: 23px;
  font-weight: 800;
  place-items: center;
  border: 1px solid rgba(244,123,32,.45);
  border-radius: 19px;
  background: var(--orange);
  box-shadow: 0 0 0 8px #19314c;
}

.step-card__icon svg {
  width: 31px;
  height: 31px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.step-card h3 {
  min-height: 50px;
  margin: 0 0 12px;
  color: white;
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: -.025em;
}

.step-card p {
  margin: 0;
  color: rgba(255,255,255,.58);
  font-size: 13px;
  line-height: 1.65;
}

.step-card--result {
  border-color: rgba(244,123,32,.7);
  background: #213b58;
}

.step-card--result .step-card__icon { box-shadow: 0 0 0 8px #213b58; }
.step-card--result .step-card__time { color: white; background: var(--orange); }

.work-steps__result {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  margin-top: 28px;
  padding: 24px 28px;
  color: var(--navy);
  border-radius: 18px;
  background: white;
}

.work-steps__result-mark {
  display: grid;
  width: 43px;
  height: 43px;
  color: white;
  font-size: 20px;
  font-weight: 800;
  place-items: center;
  border-radius: 12px;
  background: var(--orange);
}

.work-steps__result > div:nth-child(2) { display: grid; gap: 4px; }
.work-steps__result strong { font-size: 14px; }
.work-steps__result div span { color: var(--muted); font-size: 12px; }
.work-steps__result a { display: flex; align-items: center; gap: 18px; color: var(--orange-dark); font-size: 13px; font-weight: 800; }
.work-steps__result a span { font-size: 20px; transition: transform .2s ease; }
.work-steps__result a:hover span { transform: translateX(4px); }

.video-reviews {
  scroll-margin-top: 74px;
  padding: 112px 0 104px;
  background: #f5f7f9;
}

.video-reviews__heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .68fr);
  gap: 64px;
  align-items: end;
  margin-bottom: 48px;
}

.video-reviews h2 {
  max-width: 720px;
  margin: 0;
  color: var(--navy);
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.06;
  letter-spacing: -.05em;
}

.video-reviews__heading > p {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.video-reviews__list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.video-review {
  min-width: 0;
  padding: 10px 10px 22px;
  border: 1px solid #e0e5eb;
  border-radius: 24px;
  background: white;
  transition: transform .25s ease, box-shadow .25s ease;
}

.video-review:hover { box-shadow: 0 22px 50px rgba(24,43,65,.12); transform: translateY(-6px); }

.video-review__preview {
  position: relative;
  display: grid;
  width: 100%;
  aspect-ratio: 9 / 14;
  overflow: hidden;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 17px;
  cursor: pointer;
  background:
    linear-gradient(180deg, rgba(16,36,60,.02) 35%, rgba(16,36,60,.84) 100%),
    url("assets/hero-gas-stove.png") center / cover no-repeat;
}

.video-review--one .video-review__preview { background-position: 63% center; }
.video-review--two .video-review__preview { background-position: 73% center; filter: saturate(.8); }
.video-review--three .video-review__preview { background-position: 51% center; filter: sepia(.08); }
.video-review--four .video-review__preview { background-position: 82% center; filter: contrast(.92); }

.video-review__duration { position: absolute; top: 14px; right: 14px; padding: 6px 9px; color: white; font-size: 10px; font-weight: 800; border-radius: 7px; background: rgba(16,36,60,.66); backdrop-filter: blur(5px); }
.video-review__play { display: grid; width: 64px; height: 64px; padding-left: 4px; color: white; font-size: 20px; place-items: center; border: 1px solid rgba(255,255,255,.7); border-radius: 50%; background: var(--orange); box-shadow: 0 13px 30px rgba(16,36,60,.28); transition: transform .2s ease, background .2s ease; }
.video-review__preview:hover .video-review__play { background: var(--orange-dark); transform: scale(1.08); }
.video-review__status { position: absolute; inset: 0; display: grid; padding: 24px; color: white; font-size: 14px; font-weight: 800; place-items: center; background: rgba(16,36,60,.86); }
.video-review__status[hidden] { display: none; }
.video-review__preview.is-message-visible .video-review__play { opacity: 0; }
.video-review__preview.is-playing { cursor: default; }
.video-review__preview.is-playing .video-review__play,
.video-review__preview.is-playing .video-review__duration { display: none; }
.video-review__iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: #000; }

.video-review__caption { display: flex; align-items: center; gap: 11px; margin: 16px 10px 0; }
.video-review__avatar { display: grid; flex: 0 0 auto; width: 38px; height: 38px; color: white; font-size: 13px; font-weight: 800; place-items: center; border-radius: 12px; background: var(--orange); }
.video-review__caption div { display: grid; gap: 2px; min-width: 0; }
.video-review__caption strong { overflow: hidden; color: var(--navy); font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.video-review__caption div span { color: var(--muted); font-size: 10px; }
.video-review > p { margin: 14px 10px 0; color: #566477; font-size: 12px; line-height: 1.6; }

.video-reviews__cta { display: flex; align-items: center; justify-content: space-between; gap: 28px; margin-top: 28px; padding: 24px 28px; color: white; border-radius: 18px; background: var(--navy); }
.video-reviews__cta > div { display: grid; gap: 4px; }
.video-reviews__cta strong { font-size: 14px; }
.video-reviews__cta div span { color: rgba(255,255,255,.62); font-size: 12px; }
.video-reviews__cta button { display: flex; align-items: center; gap: 18px; padding: 12px 17px; color: white; font: 800 13px "Manrope", sans-serif; border: 0; border-radius: 10px; background: var(--orange); cursor: pointer; }
.video-reviews__cta button:hover { background: var(--orange-dark); }
.video-reviews__cta button span { font-size: 19px; }

.faq { scroll-margin-top: 74px; padding: 112px 0; background: white; }
.faq__layout { display: grid; grid-template-columns: minmax(270px, .55fr) minmax(0, 1fr); gap: 90px; align-items: start; }
.faq__intro { position: sticky; top: 105px; }
.faq h2 { margin: 0; color: var(--navy); font-size: clamp(38px, 5vw, 60px); line-height: 1.06; letter-spacing: -.05em; }
.faq__intro > p:not(.section-eyebrow) { max-width: 420px; margin: 22px 0 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.faq__help { display: grid; margin-top: 34px; padding: 24px; border-radius: 18px; background: var(--cream); }
.faq__help > span { color: var(--orange-dark); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.faq__help strong { margin-top: 7px; color: var(--navy); font-size: 16px; }
.faq__help button { display: flex; align-items: center; justify-content: space-between; margin-top: 20px; padding: 13px 15px; color: white; font: 800 12px "Manrope", sans-serif; border: 0; border-radius: 10px; background: var(--orange); cursor: pointer; }
.faq__help button:hover { background: var(--orange-dark); }
.faq__help button span { font-size: 18px; }
.faq__list { border-top: 1px solid #dfe4e9; }
.faq-item { border-bottom: 1px solid #dfe4e9; }
.faq-item summary { display: grid; grid-template-columns: 34px minmax(0, 1fr) 34px; gap: 14px; align-items: center; min-height: 84px; padding: 15px 4px; color: var(--navy); font-size: 16px; font-weight: 800; line-height: 1.4; list-style: none; cursor: pointer; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary > span { color: var(--orange); font-size: 11px; letter-spacing: .08em; }
.faq-item summary i { position: relative; width: 32px; height: 32px; border-radius: 9px; background: #f2f4f6; }
.faq-item summary i::before, .faq-item summary i::after { content: ""; position: absolute; top: 50%; left: 50%; width: 12px; height: 2px; border-radius: 2px; background: var(--navy); transform: translate(-50%,-50%); transition: transform .2s ease; }
.faq-item summary i::after { transform: translate(-50%,-50%) rotate(90deg); }
.faq-item[open] summary i { background: var(--orange); }
.faq-item[open] summary i::before, .faq-item[open] summary i::after { background: white; }
.faq-item[open] summary i::after { transform: translate(-50%,-50%) rotate(0); }
.faq-item > div { padding: 0 52px 24px; }
.faq-item p { max-width: 700px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }

.contacts { scroll-margin-top: 74px; padding: 104px 0; color: white; background: #172e49; }
.contacts__shell { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(350px, .72fr); gap: 72px; align-items: center; }
.contacts h2 { max-width: 680px; margin: 0; color: white; font-size: clamp(38px, 5vw, 58px); line-height: 1.08; letter-spacing: -.05em; }
.contacts__content > p:not(.section-eyebrow) { max-width: 670px; margin: 22px 0 0; color: rgba(255,255,255,.62); font-size: 14px; line-height: 1.75; }
.contacts__items { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; margin-top: 38px; }
.contact-item { display: flex; align-items: center; gap: 13px; min-width: 0; padding: 16px; color: white; border: 1px solid rgba(255,255,255,.1); border-radius: 14px; background: rgba(255,255,255,.05); }
a.contact-item { transition: border-color .2s ease, background .2s ease; }
a.contact-item:hover { border-color: rgba(244,123,32,.65); background: rgba(255,255,255,.08); }
.contact-item__icon { display: grid; flex: 0 0 auto; width: 39px; height: 39px; color: white; font-size: 17px; font-weight: 800; place-items: center; border-radius: 11px; background: var(--orange); }
.contact-item > span:last-child { display: grid; gap: 3px; min-width: 0; }
.contact-item small { color: rgba(255,255,255,.5); font-size: 9px; text-transform: uppercase; letter-spacing: .07em; }
.contact-item strong { overflow: hidden; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.contacts__action { padding: 36px; color: var(--text); border-radius: 24px; background: white; box-shadow: 0 24px 70px rgba(3,15,29,.24); }
.contacts__action-label { color: var(--orange-dark); font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.contacts__action h3 { margin: 10px 0 0; color: var(--navy); font-size: 27px; line-height: 1.25; letter-spacing: -.035em; }
.contacts__action p { margin: 13px 0 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.contacts__action button { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 56px; margin-top: 25px; padding: 0 19px; color: white; font: 800 13px "Manrope",sans-serif; border: 0; border-radius: 11px; background: var(--orange); cursor: pointer; }
.contacts__action button:hover { background: var(--orange-dark); }
.contacts__action button span { font-size: 20px; }
.contacts__action small { display: block; margin-top: 13px; color: #8a94a2; font-size: 9px; line-height: 1.5; text-align: center; }

.footer { color: white; background: #0d2035; }
.footer__top { display: grid; grid-template-columns: auto minmax(0,1fr) auto; gap: 55px; align-items: center; padding-top: 40px; padding-bottom: 34px; }
.footer .logo strong { color: white; }
.footer .logo small { color: rgba(255,255,255,.46); }
.footer__nav { display: flex; align-items: center; justify-content: center; gap: 22px; }
.footer__nav a { color: rgba(255,255,255,.62); font-size: 11px; font-weight: 700; transition: color .2s ease; }
.footer__nav a:hover { color: var(--orange); }
.footer__phone { display: grid; justify-items: end; gap: 3px; }
.footer__phone small { color: rgba(255,255,255,.46); font-size: 10px; }
.footer__phone strong { font-size: 16px; }
.footer__bottom { display: flex; align-items: center; justify-content: space-between; gap: 25px; padding-top: 19px; padding-bottom: 20px; color: rgba(255,255,255,.38); font-size: 9px; border-top: 1px solid rgba(255,255,255,.08); }
.footer__bottom a { color: rgba(255,255,255,.5); }
.footer__bottom a:hover { color: var(--orange); }

.privacy-modal {
  width: min(720px, calc(100% - 30px));
  max-height: calc(100dvh - 30px);
  padding: 0;
  overflow: hidden;
  color: var(--text);
  border: 0;
  border-radius: 24px;
  background: white;
  box-shadow: 0 30px 100px rgba(10,27,47,.34);
}
.privacy-modal[open] { animation: modal-in .22s ease both; }
.privacy-modal::backdrop { background: rgba(10,27,47,.67); backdrop-filter: blur(5px); }
.privacy-modal__content { max-height: calc(100dvh - 30px); padding: 40px; overflow-y: auto; }
.privacy-modal__close { position: absolute; z-index: 2; top: 16px; right: 16px; display: grid; width: 38px; height: 38px; padding: 0; color: #657284; font: 400 27px/1 Arial,sans-serif; place-items: center; border: 0; border-radius: 10px; background: #f2f4f6; cursor: pointer; }
.privacy-modal__close:hover { color: white; background: var(--orange); }
.privacy-modal__eyebrow { margin: 0 0 8px; color: var(--orange-dark); font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.privacy-modal h2 { max-width: 560px; margin: 0; padding-right: 40px; color: var(--navy); font-size: 32px; line-height: 1.18; letter-spacing: -.04em; }
.privacy-modal__updated { margin: 9px 0 28px; color: #8a94a2; font-size: 11px; }
.privacy-modal section { padding: 19px 0; border-top: 1px solid #e4e8ec; }
.privacy-modal section h3 { margin: 0 0 8px; color: var(--navy); font-size: 14px; }
.privacy-modal section p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.75; }
.privacy-modal section a { color: var(--orange-dark); font-weight: 700; }
.privacy-modal__accept { width: 100%; min-height: 52px; margin-top: 10px; color: white; font: 800 13px "Manrope",sans-serif; border: 0; border-radius: 11px; background: var(--orange); cursor: pointer; }
.privacy-modal__accept:hover { background: var(--orange-dark); }

.callback-modal {
  width: min(470px, calc(100% - 30px));
  max-height: calc(100dvh - 30px);
  overflow-y: auto;
  padding: 38px;
  color: var(--text);
  border: 0;
  border-radius: 24px;
  background: white;
  box-shadow: 0 30px 100px rgba(10,27,47,.32);
}

.callback-modal[open] { animation: modal-in .22s ease both; }
.callback-modal::backdrop { background: rgba(10,27,47,.64); backdrop-filter: blur(5px); }
.callback-modal__close { position: absolute; top: 16px; right: 16px; display: grid; width: 38px; height: 38px; padding: 0; color: #657284; font: 400 27px/1 Arial, sans-serif; place-items: center; border: 0; border-radius: 10px; background: #f2f4f6; cursor: pointer; }
.callback-modal__close:hover { color: white; background: var(--orange); }
.callback-modal__heading p { margin: 0 0 8px; color: var(--orange-dark); font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.callback-modal__heading h2 { max-width: 350px; margin: 0; color: var(--navy); font-size: 28px; line-height: 1.2; letter-spacing: -.035em; }
.callback-modal__heading > span { display: block; margin: 12px 0 26px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.callback-form label { display: grid; gap: 8px; margin-bottom: 16px; }
.callback-form label > span:first-child { color: #3d4b5e; font-size: 12px; font-weight: 700; }
.callback-form input[type="text"], .callback-form input[type="tel"] { width: 100%; height: 55px; padding: 0 17px; color: var(--text); font: 500 15px/1 "Manrope", Arial, sans-serif; font-variant-numeric: tabular-nums; border: 1px solid #dce1e7; border-radius: 12px; outline: none; background: #fbfcfd; }
.callback-form input:focus { border-color: var(--orange); box-shadow: 0 0 0 4px rgba(244,123,32,.1); }
.callback-form .phone-field { position: relative; display: block; }
.callback-form .phone-field__prefix { position: absolute; z-index: 1; top: 50%; left: 17px; color: var(--text); font: 500 15px/1 "Manrope", Arial, sans-serif; transform: translateY(-50%); }
.callback-form .phone-field input { padding-left: 48px; }
.callback-form .callback-form__consent { display: flex; align-items: flex-start; gap: 10px; margin: 3px 0 0; cursor: pointer; }
.callback-form__consent input { flex: 0 0 auto; width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--orange); }
.callback-form .callback-form__consent span { color: #737f8f; font-size: 11px; font-weight: 500; line-height: 1.45; }
.callback-form__submit { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 56px; margin-top: 21px; padding: 0 20px; color: white; font: 800 14px "Manrope", sans-serif; border: 0; border-radius: 12px; background: var(--orange); cursor: pointer; }
.callback-form__submit:hover { background: var(--orange-dark); }
.callback-form__submit span { font-size: 20px; }
.callback-form__success { margin: 15px 0 0; padding: 12px; color: #17623a; font-size: 12px; font-weight: 700; text-align: center; border-radius: 10px; background: #e9f8ef; }
.request-form__success.is-error, .callback-form__success.is-error { color: #8a2d2d; background: #fdeaea; }

@keyframes modal-in { from { opacity: 0; transform: translateY(18px) scale(.98); } to { opacity: 1; transform: none; } }

.thanks-page { min-height: 100dvh; background: #eef2f5; }
.thanks { display: grid; min-height: 100dvh; padding: 30px; place-items: center; background: radial-gradient(circle at 75% 15%, rgba(244,123,32,.17), transparent 34%), linear-gradient(135deg,#f8fafb,#eef2f5); }
.thanks__card { width: min(680px,100%); padding: 42px; border: 1px solid rgba(16,36,60,.08); border-radius: 28px; background: white; box-shadow: 0 30px 90px rgba(16,36,60,.13); }
.thanks__logo { margin-bottom: 48px; }
.thanks__mark { display: grid; width: 72px; height: 72px; margin-bottom: 24px; color: white; font-size: 32px; font-weight: 800; place-items: center; border-radius: 20px; background: var(--orange); box-shadow: 0 15px 35px rgba(244,123,32,.3); }
.thanks h1 { max-width: 580px; margin: 0; color: var(--navy); font-size: clamp(38px,7vw,58px); line-height: 1.05; letter-spacing: -.055em; }
.thanks__lead { max-width: 570px; margin: 20px 0 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.thanks__steps { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; margin-top: 35px; }
.thanks__steps > div { min-width: 0; padding: 17px; border-radius: 14px; background: #f4f6f8; }
.thanks__steps > div > span { color: var(--orange); font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.thanks__steps p { display: grid; gap: 4px; margin: 12px 0 0; }
.thanks__steps strong { color: var(--navy); font-size: 12px; }
.thanks__steps small { color: var(--muted); font-size: 9px; line-height: 1.45; }
.thanks__actions { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 30px; padding-top: 25px; border-top: 1px solid #e3e7eb; }
.thanks__home { display: flex; align-items: center; gap: 20px; padding: 14px 17px; color: white; font-size: 12px; font-weight: 800; border-radius: 10px; background: var(--orange); }
.thanks__home:hover { background: var(--orange-dark); }
.thanks__home span { font-size: 18px; }
.thanks__phone { color: var(--navy); font-size: 15px; font-weight: 800; }

@media (max-width: 1100px) {
  .header { flex-wrap: wrap; }
  .menu-toggle { display: block; margin-left: auto; }
  .header__contact { margin-left: 14px; }
  .header-nav { order: 4; display: none; width: 100%; margin: 0; padding: 12px 0 18px; border-top: 1px solid rgba(16,36,60,.08); }
  .header-nav.is-open { display: flex; }
  .header-nav a { flex: 1; justify-content: center; }
  .header.is-scrolled .header__callback { order: 3; width: 128px; margin-left: 10px; }
}

@media (max-width: 940px) {
  .hero {
    background:
      linear-gradient(90deg, rgba(255,255,255,.97), rgba(255,255,255,.78)),
      url("assets/hero-gas-stove.png") 62% center / cover no-repeat;
  }
  .hero__content { grid-template-columns: 1fr; gap: 70px; padding-top: 148px; }
  .hero__copy { max-width: 760px; }
  .hero__side { width: min(100%, 520px); }
  .price-badge { right: -15px; }
  .advantages { padding: 86px 0; }
  .advantages__heading { grid-template-columns: 1fr; gap: 22px; }
  .advantages__heading > p { max-width: 650px; }
  .advantages__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .work-steps { padding: 86px 0; }
  .work-steps__heading { grid-template-columns: 1fr; gap: 22px; }
  .steps-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps-list::before { display: none; }
  .video-reviews { padding: 86px 0; }
  .video-reviews__heading { grid-template-columns: 1fr; gap: 22px; }
  .video-reviews__heading > p { max-width: 650px; }
  .video-reviews__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .video-review__preview { aspect-ratio: 9 / 12; }
  .faq { padding: 86px 0; }
  .faq__layout { grid-template-columns: 1fr; gap: 42px; }
  .faq__intro { position: static; }
  .faq__intro > p:not(.section-eyebrow) { max-width: 650px; }
  .faq__help { max-width: 430px; }
  .contacts { padding: 86px 0; }
  .contacts__shell { grid-template-columns: 1fr; gap: 42px; }
  .contacts__action { max-width: 560px; }
  .footer__top { grid-template-columns: 1fr auto; }
  .footer__nav { order: 3; grid-column: 1 / -1; justify-content: flex-start; flex-wrap: wrap; }
}

@media (max-width: 600px) {
  .hero {
    background:
      linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(255,255,255,.88) 48%, rgba(248,238,227,.9) 100%),
      url("assets/hero-gas-stove.png") 70% center / cover no-repeat;
  }
  .container { width: min(100% - 30px, 1180px); }
  .header { min-height: 76px; }
  .header { width: calc(100% - 20px); padding-inline: 10px; }
  .header.is-scrolled { min-height: 66px; }
  .logo__icon { width: 40px; height: 40px; }
  .logo small, .header__contact span { display: none; }
  .logo strong { font-size: 14px; }
  .header__contact { display: none; }
  .header.is-scrolled .header__callback { width: auto; min-height: 38px; margin-left: 8px; padding: 0 11px; font-size: 10px; }
  .header.is-scrolled .menu-toggle { margin-left: 8px; }
  .header-nav.is-open { display: grid; gap: 0; padding: 8px 0 14px; }
  .header-nav a { justify-content: flex-start; padding: 13px 4px; font-size: 14px; border-bottom: 1px solid rgba(16,36,60,.07); }
  .header-nav a:last-child { border-bottom: 0; }
  .hero__content { min-height: auto; padding-top: 124px; padding-bottom: 54px; }
  h1 { font-size: clamp(38px, 12vw, 53px); }
  .hero__offer { font-size: 18px; }
  .benefits { display: grid; }
  .price-badge { top: -44px; right: 8px; width: 124px; height: 124px; border-width: 5px; }
  .price-badge strong { font-size: 23px; }
  .request-form { padding: 30px 22px 24px; border-radius: 22px; }
  .request-form__heading { max-width: 62%; }
  .request-form__heading h2 { font-size: 22px; }
  .request-form__heading > span { margin-bottom: 35px; }
  .advantages { padding: 70px 0 64px; }
  .advantages__heading { margin-bottom: 32px; }
  .advantages__grid { grid-template-columns: 1fr; }
  .advantage-card { min-height: 285px; }
  .advantage-card__icon { margin-bottom: 30px; }
  .advantage-card h3 { min-height: auto; }
  .advantage-card p { margin-bottom: 30px; }
  .advantages__footer { align-items: flex-start; flex-direction: column; }
  .work-steps { padding: 70px 0 64px; }
  .work-steps__heading { margin-bottom: 32px; }
  .steps-list { grid-template-columns: 1fr; }
  .step-card { min-height: 300px; }
  .step-card__icon { margin: 30px 0; }
  .step-card h3 { min-height: auto; }
  .work-steps__result { grid-template-columns: auto 1fr; }
  .work-steps__result a { grid-column: 1 / -1; margin-top: 7px; }
  .video-reviews { padding: 70px 0 64px; }
  .video-reviews__heading { margin-bottom: 32px; }
  .video-reviews__list { grid-auto-flow: column; grid-auto-columns: minmax(255px, 82vw); grid-template-columns: none; gap: 12px; margin-inline: -15px; padding: 0 15px 14px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .video-reviews__list::-webkit-scrollbar { display: none; }
  .video-review { scroll-snap-align: start; }
  .video-review__preview { aspect-ratio: 9 / 14; }
  .video-reviews__cta { align-items: flex-start; flex-direction: column; }
  .video-reviews__cta button { width: 100%; justify-content: space-between; }
  .faq { padding: 70px 0 64px; }
  .faq__help { padding: 20px; }
  .faq-item summary { grid-template-columns: 27px minmax(0,1fr) 32px; gap: 9px; min-height: 76px; font-size: 14px; }
  .faq-item > div { padding: 0 41px 22px 36px; }
  .contacts { padding: 70px 0 64px; }
  .contacts__items { grid-template-columns: 1fr; }
  .contacts__action { padding: 28px 22px; }
  .contacts__action h3 { font-size: 24px; }
  .footer__top { grid-template-columns: 1fr; gap: 28px; }
  .footer__phone { justify-items: start; }
  .footer__nav { order: initial; grid-column: auto; display: grid; gap: 13px; }
  .footer__bottom { align-items: flex-start; flex-direction: column; gap: 10px; }
  .callback-modal { padding: 32px 21px 24px; border-radius: 20px; }
  .callback-modal__heading h2 { padding-right: 24px; font-size: 24px; }
  .privacy-modal { border-radius: 20px; }
  .privacy-modal__content { padding: 32px 21px 24px; }
  .privacy-modal h2 { font-size: 25px; }
  .thanks { padding: 12px; }
  .thanks__card { padding: 26px 20px; border-radius: 21px; }
  .thanks__logo { margin-bottom: 36px; }
  .thanks__steps { grid-template-columns: 1fr; }
  .thanks__actions { align-items: stretch; flex-direction: column; }
  .thanks__home { justify-content: space-between; }
  .thanks__phone { text-align: center; }
}

@media (max-width: 380px) {
  .container { width: min(100% - 22px, 1180px); }
  .logo strong { font-size: 12px; }
  .logo { gap: 8px; }
  .logo small { display: none; }
  .logo__icon { width: 36px; height: 36px; border-radius: 10px; }
  .header.is-scrolled .header__callback { width: 82px; max-width: 82px; padding-inline: 7px; font-size: 9px; }
  .menu-toggle { width: 38px; height: 38px; padding: 9px; }
  h1 { font-size: 35px; }
  .request-form { padding-inline: 18px; }
  .advantages h2, .work-steps h2, .video-reviews h2, .faq h2, .contacts h2 { font-size: 36px; }
  .advantage-card, .step-card { padding-inline: 22px; }
}