:root {
  --bg: #f4f6f7;
  --surface: #ffffff;
  --surface-soft: #eef2f3;
  --ink: #111820;
  --muted: #65717c;
  --line: #dde3e7;
  --brand: #f58220;
  --brand-hover: #ff922f;
  --brand-soft: #fff1e4;
  --dark: #101820;
  --dark-2: #18242d;
  --success: #16824d;
  --radius: 22px;
  --shadow: 0 24px 70px rgba(16, 24, 32, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
body, button, input, select { font: inherit; }
a { color: inherit; }
button, input, select { border: 0; }
button, a { -webkit-tap-highlight-color: transparent; }
.shell { width: min(1160px, calc(100% - 36px)); margin: 0 auto; }

.site-header {
  position: relative;
  z-index: 10;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid rgba(17,24,32,.07);
}
.site-header__inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.logo__mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--brand);
  color: var(--dark);
  font-weight: 950;
  font-size: 21px;
  box-shadow: 0 8px 20px rgba(245,130,32,.24);
}
.logo__text { display: grid; line-height: 1.05; }
.logo__text strong { font-size: 16px; letter-spacing: .05em; }
.logo__text small { margin-top: 4px; color: var(--muted); font-size: 11px; }
.header-contacts { display: flex; align-items: center; gap: 16px; }
.header-contacts > span { color: var(--muted); font-size: 13px; }
.header-contacts a { text-decoration: none; font-weight: 850; font-size: 16px; }
.header-phone-secondary { color: var(--muted); }

.hero {
  position: relative;
  overflow: hidden;
  padding: 68px 0 34px;
  background:
    radial-gradient(circle at 82% 12%, rgba(245,130,32,.14), transparent 32%),
    linear-gradient(135deg, #fff 0%, #f0f3f4 100%);
}
.hero::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  right: -210px;
  bottom: -320px;
  border: 1px solid rgba(17,24,32,.05);
  border-radius: 50%;
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(370px, .72fr);
  gap: 64px;
  align-items: center;
}
.availability {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  margin-bottom: 18px;
  border: 1px solid #cae9d8;
  border-radius: 999px;
  background: #effaf4;
  color: #17643d;
  font-size: 12px;
  font-weight: 800;
}
.availability i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #20a562;
  box-shadow: 0 0 0 4px rgba(32,165,98,.12);
}
.eyebrow {
  margin: 0 0 10px;
  color: #c9630c;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}
h1, h2, h3 { margin-top: 0; color: var(--ink); letter-spacing: -.035em; }
h1 { max-width: 740px; margin-bottom: 22px; font-size: clamp(42px, 5.8vw, 72px); line-height: .98; }
h1 em { color: var(--brand); font-style: normal; }
h2 { margin-bottom: 18px; font-size: clamp(32px, 4.2vw, 50px); line-height: 1.05; }
h3 { margin-bottom: 10px; font-size: 21px; line-height: 1.15; }
.hero__lead { max-width: 720px; margin: 0 0 28px; color: #3d4852; font-size: clamp(18px, 1.7vw, 22px); }
.hero-specs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; max-width: 760px; }
.hero-specs div {
  padding: 15px 14px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(255,255,255,.82);
}
.hero-specs strong { display: block; font-size: 20px; }
.hero-specs span { display: block; margin-top: 2px; color: var(--muted); font-size: 11px; }
.included-line { display: flex; flex-wrap: wrap; gap: 9px 18px; margin-top: 24px; color: #34414b; font-size: 13px; font-weight: 700; }
.hero-phone { display: inline-grid; margin-top: 30px; text-decoration: none; }
.hero-phone span { color: var(--muted); font-size: 12px; }
.hero-phone strong { font-size: 23px; }

.purchase-card {
  position: relative;
  padding: 18px;
  border: 1px solid rgba(17,24,32,.08);
  border-radius: 30px;
  background: rgba(255,255,255,.96);
  box-shadow: var(--shadow);
}
.product-stage {
  position: relative;
  min-height: 210px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  background: linear-gradient(145deg, #edf1f3 0%, #fff 52%, #e8edef 100%);
}
.product-stage__halo {
  position: absolute;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,130,32,.19) 0, rgba(245,130,32,.05) 48%, transparent 70%);
}
.pump-art { position: relative; width: 210px; height: 110px; filter: drop-shadow(0 18px 18px rgba(16,24,32,.16)); }
.pump-art__body {
  position: absolute;
  z-index: 2;
  left: 62px;
  top: 14px;
  width: 86px;
  height: 86px;
  display: grid;
  place-items: center;
  border: 10px solid #29353d;
  border-radius: 50%;
  background: radial-gradient(circle at 36% 32%, #535f66, #252f36 68%);
  color: #fff;
  line-height: .95;
}
.pump-art__body b { font-size: 18px; letter-spacing: .05em; }
.pump-art__body small { margin-top: -21px; color: var(--brand); font-size: 9px; font-weight: 900; }
.pump-art__pipe { position: absolute; top: 39px; width: 70px; height: 36px; border: 7px solid #2f3a41; background: #4c585f; }
.pump-art__pipe--left { left: 5px; border-radius: 12px 4px 4px 12px; }
.pump-art__pipe--right { right: 5px; border-radius: 4px 12px 12px 4px; }
.pump-art__control {
  position: absolute;
  z-index: 4;
  top: 0;
  right: 48px;
  display: grid;
  place-items: center;
  width: 45px;
  height: 31px;
  border-radius: 8px;
  background: var(--brand);
  color: var(--dark);
  font-size: 11px;
  font-weight: 950;
}
.product-stage__name { position: relative; margin-top: 8px; font-size: 14px; }
.product-stage__hint { position: relative; max-width: 270px; margin-top: 5px; color: var(--muted); text-align: center; font-size: 10px; }
.purchase-price { display: flex; align-items: end; flex-wrap: wrap; gap: 4px 14px; padding: 18px 6px 13px; }
.purchase-price > span { width: 100%; color: var(--muted); font-size: 12px; }
.purchase-price strong { font-size: 36px; line-height: 1; }
.purchase-price small { color: var(--muted); font-size: 11px; }
.oneclick-heading { display: grid; gap: 3px; padding: 13px 6px 11px; border-top: 1px solid var(--line); }
.oneclick-heading strong { font-size: 18px; }
.oneclick-heading span { color: var(--muted); font-size: 12px; }
.oneclick-form { display: grid; gap: 10px; }
.oneclick-form label { display: grid; gap: 5px; }
.oneclick-form label > span { color: #44515a; font-size: 11px; font-weight: 800; }
.oneclick-form input {
  width: 100%;
  min-height: 52px;
  padding: 0 14px;
  outline: 0;
  border: 1px solid #cfd7dc;
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  transition: border .15s ease, box-shadow .15s ease;
}
.oneclick-form input:focus { border-color: var(--brand); box-shadow: 0 0 0 4px rgba(245,130,32,.11); }
.oneclick-form input.is-invalid { border-color: #c83232; box-shadow: 0 0 0 4px rgba(200,50,50,.09); }
.hp-field { position: absolute !important; left: -9999px !important; width: 1px !important; height: 1px !important; opacity: 0 !important; }
.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 12px;
  cursor: pointer;
  text-decoration: none;
  font-weight: 900;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.button:hover { transform: translateY(-1px); }
.button--primary { background: var(--brand); color: #171717; box-shadow: 0 12px 28px rgba(245,130,32,.24); }
.button--primary:hover { background: var(--brand-hover); }
.button--dark { background: var(--dark); color: #fff; }
.button--wide { width: 100%; }
.button[disabled] { opacity: .64; cursor: wait; transform: none; }
.detailed-link { display: block; margin: 13px 0 0; color: #35434c; text-align: center; font-size: 12px; font-weight: 800; }
.privacy-copy { margin: 10px 4px 2px; color: #8a949c; text-align: center; font-size: 10px; }
.form-status { min-height: 18px; margin: 0; color: var(--muted); font-size: 12px; }
.form-status.is-success { color: var(--success); font-weight: 750; }
.form-status.is-error { color: #aa2525; }
.hero-note {
  position: relative;
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}
.hero-note strong { color: #37434c; }

.proofbar { background: #fff; border-bottom: 1px solid var(--line); }
.proofbar__grid { min-height: 108px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; align-items: center; }
.proofbar__grid > div { display: flex; align-items: center; gap: 12px; }
.proofbar__grid > div > span {
  min-width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--brand-soft);
  color: #c55d08;
  font-size: 11px;
  font-weight: 950;
}
.proofbar p { display: grid; margin: 0; }
.proofbar strong { font-size: 14px; }
.proofbar small { color: var(--muted); font-size: 10px; }

.section { padding: 86px 0; background: #fff; }
.section--soft { background: var(--surface-soft); }
.section--dark { background: var(--dark); color: #fff; }
.section-title { max-width: 760px; margin-bottom: 34px; }
.section-title > p:last-child { margin-bottom: 0; color: var(--muted); font-size: 17px; }
.benefit-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 16px; }
.benefit { min-height: 278px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.benefit--accent { background: var(--dark); color: #fff; border-color: var(--dark); }
.benefit--accent h3 { color: #fff; }
.benefit p { margin-bottom: 0; color: var(--muted); }
.benefit--accent p { color: #c4ccd2; }
.benefit__metric { display: block; margin-bottom: 34px; color: var(--brand); font-size: 64px; font-weight: 950; line-height: .9; letter-spacing: -.06em; }
.benefit__metric span { margin-left: 4px; font-size: 20px; letter-spacing: 0; }
.benefit__icon { width: 48px; height: 48px; display: grid; place-items: center; margin-bottom: 34px; border-radius: 14px; background: var(--brand-soft); color: #b85708; font-size: 25px; font-weight: 900; }

.fit-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 72px; align-items: start; }
.fit-copy { position: sticky; top: 28px; }
.fit-copy > p:not(.eyebrow) { margin-bottom: 26px; color: var(--muted); font-size: 17px; }
.fit-list { display: grid; gap: 12px; }
.fit-list article { display: flex; gap: 18px; padding: 22px; border: 1px solid #d6dee2; border-radius: 18px; background: rgba(255,255,255,.7); }
.fit-list article > span { min-width: 38px; height: 38px; display: grid; place-items: center; border-radius: 11px; background: var(--dark); color: #fff; font-weight: 900; }
.fit-list strong { display: block; margin-bottom: 5px; }
.fit-list p { margin: 0; color: var(--muted); }

.energy-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
.energy-card, .spec-card { padding: 34px; border: 1px solid var(--line); border-radius: 24px; background: #fff; }
.energy-card > p:not(.eyebrow) { color: var(--muted); }
.mini-calculator { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; margin-top: 22px; }
.mini-calculator label { display: grid; gap: 6px; color: #46525c; font-size: 11px; font-weight: 800; }
.mini-calculator label:nth-child(3), .mini-calculator .button { grid-column: 1 / -1; }
.mini-calculator input, .mini-calculator select { width: 100%; min-height: 48px; padding: 0 12px; border: 1px solid #cfd7dc; border-radius: 10px; background: #fff; color: var(--ink); }
.calculator-result { margin-top: 13px; padding: 15px; border: 1px solid #cbe6d8; border-radius: 12px; background: #eff8f3; color: #195f3d; font-size: 13px; }
.fineprint { display: block; margin-top: 9px; color: var(--muted); }
.spec-card dl { margin: 6px 0 0; }
.spec-card dl div { display: flex; justify-content: space-between; gap: 20px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.spec-card dl div:last-child { border-bottom: 0; }
.spec-card dt { color: var(--muted); }
.spec-card dd { margin: 0; text-align: right; font-weight: 800; }

.bottom-order { display: grid; grid-template-columns: 1fr 420px; gap: 72px; align-items: center; }
.section--dark h2 { color: #fff; }
.section--dark .eyebrow { color: #ffab61; }
.bottom-order__copy > p:not(.eyebrow) { max-width: 650px; color: #bcc6cd; font-size: 17px; }
.bottom-phones { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 24px; }
.bottom-phones a { color: #fff; font-size: 23px; font-weight: 900; text-decoration: none; }
.oneclick-form--dark { padding: 22px; border: 1px solid rgba(255,255,255,.12); border-radius: 20px; background: rgba(255,255,255,.06); }
.oneclick-form--dark label > span { color: #c9d0d5; }
.oneclick-form--dark .form-status { color: #c9d0d5; }
.detailed-link--dark { color: #d8dee2; }

.faq__grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 72px; align-items: start; }
.faq__items details { border-top: 1px solid var(--line); }
.faq__items details:last-child { border-bottom: 1px solid var(--line); }
.faq__items summary { padding: 20px 0; cursor: pointer; font-size: 17px; font-weight: 850; }
.faq__items details p { margin: -4px 0 20px; color: var(--muted); }

.footer { padding: 26px 0; background: #0b1117; color: #fff; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer__inner > div:first-child { display: grid; }
.footer__inner > div:first-child span { color: #87929b; font-size: 11px; }
.footer__phones { display: flex; gap: 20px; }
.footer__phones a { color: #dce1e4; text-decoration: none; font-weight: 800; }
.mobile-orderbar { display: none; }

@media (max-width: 980px) {
  .header-phone-secondary { display: none; }
  .hero { padding-top: 44px; }
  .hero__grid { grid-template-columns: 1fr; gap: 34px; }
  .purchase-card { width: min(100%, 560px); }
  .hero-specs { max-width: 700px; }
  .proofbar__grid { grid-template-columns: repeat(2, 1fr); padding: 20px 0; }
  .benefit-grid { grid-template-columns: 1fr 1fr; }
  .benefit--accent { grid-column: 1 / -1; }
  .fit-layout, .energy-layout, .bottom-order, .faq__grid { grid-template-columns: 1fr; gap: 38px; }
  .fit-copy { position: static; }
  .bottom-order .oneclick-form { max-width: 560px; }
}

@media (max-width: 640px) {
  body { padding-bottom: 78px; }
  .shell { width: min(100% - 22px, 1160px); }
  .site-header__inner { min-height: 60px; }
  .logo__mark { width: 34px; height: 34px; }
  .logo__text strong { font-size: 14px; }
  .logo__text small { display: none; }
  .header-contacts > span, .header-phone-secondary { display: none; }
  .header-contacts a { font-size: 14px; }
  .hero { padding: 28px 0 24px; }
  .hero__grid { gap: 26px; }
  h1 { font-size: 43px; }
  h2 { font-size: 33px; }
  .hero__lead { font-size: 17px; }
  .hero-specs { grid-template-columns: 1fr 1fr; gap: 7px; }
  .hero-specs div { padding: 11px; }
  .hero-specs strong { font-size: 17px; }
  .hero-specs span { font-size: 10px; }
  .included-line { gap: 7px 12px; margin-top: 18px; font-size: 11px; }
  .hero-phone { margin-top: 22px; }
  .hero-phone strong { font-size: 21px; }
  .purchase-card { padding: 11px; border-radius: 22px; }
  .product-stage { min-height: 180px; }
  .purchase-price { padding-top: 15px; }
  .purchase-price strong { font-size: 33px; }
  .oneclick-heading { padding-top: 10px; }
  .oneclick-form input { min-height: 50px; }
  .hero-note { margin-top: 22px; font-size: 11px; }
  .proofbar__grid { grid-template-columns: 1fr 1fr; gap: 17px 12px; }
  .proofbar__grid > div { align-items: flex-start; }
  .proofbar__grid > div > span { min-width: 30px; height: 30px; }
  .proofbar strong { font-size: 12px; }
  .section { padding: 60px 0; }
  .section-title { margin-bottom: 26px; }
  .benefit-grid { grid-template-columns: 1fr; }
  .benefit--accent { grid-column: auto; }
  .benefit { min-height: auto; padding: 24px; }
  .benefit__metric, .benefit__icon { margin-bottom: 26px; }
  .fit-list article { padding: 17px; gap: 13px; }
  .energy-card, .spec-card { padding: 22px; }
  .mini-calculator { grid-template-columns: 1fr; }
  .mini-calculator label:nth-child(3), .mini-calculator .button { grid-column: auto; }
  .spec-card dl div { gap: 12px; font-size: 13px; }
  .bottom-phones { display: grid; gap: 6px; }
  .bottom-phones a { font-size: 21px; }
  .oneclick-form--dark { padding: 16px; }
  .faq__grid { gap: 16px; }
  .faq__items summary { font-size: 15px; }
  .footer { padding-bottom: 24px; }
  .footer__inner { align-items: flex-start; flex-direction: column; }
  .footer__phones { display: grid; gap: 5px; }
  .mobile-orderbar {
    position: fixed;
    z-index: 100;
    left: 0;
    right: 0;
    bottom: 0;
    min-height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 9px 11px;
    border-top: 1px solid var(--line);
    background: rgba(255,255,255,.96);
    backdrop-filter: blur(12px);
    box-shadow: 0 -12px 32px rgba(16,24,32,.11);
  }
  .mobile-orderbar > div { display: grid; }
  .mobile-orderbar span { color: var(--muted); font-size: 10px; }
  .mobile-orderbar strong { font-size: 20px; }
  .mobile-orderbar .button { min-height: 48px; padding: 0 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}