:root {
  --blue: #0c65b4;
  --blue-dark: #07365f;
  --green: #5fa618;
  --green-dark: #3b7d12;
  --ink: #102030;
  --muted: #607083;
  --line: #dbe6ee;
  --soft: #f2f8fb;
  --sky: #eaf6ff;
  --white: #ffffff;
  --shadow: 0 20px 60px rgba(16, 32, 48, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, Arial, Helvetica, sans-serif;
  background: var(--white);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 12px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(219, 230, 238, 0.85);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}

.brand-icon {
  position: relative;
  display: block;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  background: #eef8ff;
  border: 1px solid rgba(12, 101, 180, 0.14);
  border-radius: 8px;
}

.brand-drop {
  position: absolute;
  left: 11px;
  top: 8px;
  width: 20px;
  height: 28px;
  background: linear-gradient(160deg, #69c8f2 0%, var(--blue) 100%);
  border-radius: 50% 50% 50% 10%;
  transform: rotate(45deg);
}

.brand-leaf {
  position: absolute;
  right: 8px;
  bottom: 8px;
  width: 19px;
  height: 24px;
  background: linear-gradient(160deg, #bde33c 0%, var(--green) 100%);
  border-radius: 50% 50% 10% 50%;
  transform: rotate(-18deg);
  box-shadow: -2px 0 0 rgba(255, 255, 255, 0.72);
}

.brand-text {
  display: grid;
  gap: 2px;
}

.brand strong {
  color: var(--blue-dark);
  font-size: 20px;
  line-height: 1;
  white-space: nowrap;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.15;
  white-space: nowrap;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

.desktop-nav a:hover,
.phone:hover {
  color: var(--blue);
}

.phone {
  color: var(--blue-dark);
  font-weight: 800;
  white-space: nowrap;
}

.section {
  padding: clamp(64px, 8vw, 112px) clamp(18px, 4vw, 64px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(360px, 0.78fr);
  gap: clamp(34px, 6vw, 96px);
  align-items: center;
  overflow: hidden;
  min-height: min(820px, calc(100vh - 72px));
  background:
    radial-gradient(circle at 78% 36%, rgba(95, 166, 24, 0.16), transparent 34%),
    linear-gradient(180deg, #f7fcff 0%, #ffffff 72%);
}

.eyebrow,
.form-kicker {
  margin: 0 0 12px;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 900px;
  margin-bottom: 22px;
  color: var(--blue-dark);
  font-size: clamp(42px, 6.2vw, 88px);
  line-height: 0.96;
}

h2 {
  color: var(--blue-dark);
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.06;
}

h3 {
  color: var(--blue-dark);
  font-size: 21px;
}

.lead {
  max-width: 720px;
  color: #33475b;
  font-size: clamp(19px, 2.1vw, 25px);
  line-height: 1.45;
}

.hero-actions,
.compact-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.primary {
  color: var(--white);
  background: var(--green);
  box-shadow: 0 12px 30px rgba(95, 166, 24, 0.28);
}

.primary:hover {
  background: var(--green-dark);
}

.secondary {
  color: var(--blue-dark);
  background: var(--white);
  border: 1px solid var(--line);
}

.wide {
  width: 100%;
}

.hero-badges {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  align-items: stretch;
  gap: 10px;
  max-width: 680px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.hero-badges li {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 64px;
  padding: 16px 18px;
  color: var(--blue-dark);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.25;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(219, 230, 238, 0.9);
  border-radius: 8px;
}

.hero-badges li::before {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  content: "";
  background: var(--green);
  border-radius: 50%;
}

.hero-product {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 560px;
}

.hero-product::before {
  position: absolute;
  inset: 40px 0 20px;
  content: "";
  background: linear-gradient(180deg, var(--sky), rgba(255, 255, 255, 0));
  border: 1px solid rgba(12, 101, 180, 0.08);
  border-radius: 50%;
}

.station {
  position: relative;
  width: min(76vw, 360px);
  height: 470px;
  z-index: 1;
}

.station-body {
  position: absolute;
  left: 50%;
  bottom: 34px;
  width: 260px;
  height: 365px;
  transform: translateX(-50%);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.46), transparent 20% 78%, rgba(7, 54, 95, 0.16)),
    linear-gradient(180deg, #2b9ade, #0c65b4);
  border: 8px solid #ffffff;
  border-radius: 48px 48px 34px 34px;
  box-shadow: 0 30px 70px rgba(7, 54, 95, 0.24);
}

.station-cap {
  position: absolute;
  left: 50%;
  top: 18px;
  width: 210px;
  height: 76px;
  z-index: 2;
  transform: translateX(-50%);
  background: linear-gradient(180deg, #75bf2a, var(--green));
  border: 8px solid #ffffff;
  border-radius: 999px;
  box-shadow: 0 18px 34px rgba(95, 166, 24, 0.24);
}

.station-line,
.station-water {
  position: absolute;
  z-index: 3;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.72);
  border-radius: 999px;
}

.station-line {
  width: 170px;
  height: 10px;
}

.line-one {
  top: 178px;
}

.line-two {
  top: 254px;
}

.station-water {
  bottom: 92px;
  width: 188px;
  height: 82px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(122, 211, 255, 0.8));
  border-radius: 28px;
}

.product-note {
  position: absolute;
  z-index: 4;
  display: grid;
  gap: 2px;
  width: 148px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.product-note strong {
  color: var(--blue);
  font-size: 30px;
  line-height: 1;
}

.product-note span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.top-note {
  top: 86px;
  right: 2%;
}

.bottom-note {
  left: 2%;
  bottom: 72px;
}

.lead-strip,
.lead-form,
.product-card,
.catalog-card,
.compare-card,
.supervision-card,
.trust-grid article,
.service-grid article,
.difference-grid article,
.proof-grid article,
.choice-grid article,
.timeline article,
.quiz-form,
.faq details {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.lead-form {
  padding: 0;
  box-shadow: none;
  border: 0;
}

.lead-form h2 {
  margin-bottom: 22px;
  font-size: 29px;
}

.lead-strip {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  gap: 22px;
  align-items: center;
  padding-top: 30px;
  padding-bottom: 30px;
  margin: -48px clamp(18px, 4vw, 64px) 0;
  position: relative;
  z-index: 5;
}

.lead-strip.section {
  padding-right: clamp(20px, 3vw, 32px);
  padding-left: clamp(20px, 3vw, 32px);
}

.lead-strip h2 {
  margin-bottom: 0;
  font-size: clamp(25px, 2.5vw, 34px);
}

.lead-strip .lead-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(160px, 1fr)) minmax(180px, 0.7fr);
  gap: 12px;
  align-items: end;
}

.lead-strip .privacy {
  grid-column: 1 / -1;
}

label {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 52px;
  padding: 0 14px;
  color: var(--ink);
  font: inherit;
  background: #f8fbfd;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(12, 101, 180, 0.11);
}

.privacy {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.split,
.engineer {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(26px, 5vw, 64px);
  align-items: start;
}

.split p,
.engineer p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.choice-grid,
.proof-grid,
.brand-cards,
.timeline {
  display: grid;
  gap: 16px;
}

.choice-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.choice-grid article,
.timeline article,
.proof-grid article {
  padding: 22px;
}

.choice-grid span {
  color: var(--green);
  font-size: 32px;
  font-weight: 900;
}

.brands,
.difference,
.astra-info,
.supervision,
.process,
.service,
.quiz {
  background: var(--soft);
}

.catalog {
  background: #ffffff;
}

.trust-pack {
  background: #ffffff;
}

.trust-pack .section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

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

.trust-grid article,
.service-grid article {
  padding: 24px;
  box-shadow: 0 14px 42px rgba(16, 32, 48, 0.08);
}

.trust-grid span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  color: var(--white);
  font-weight: 900;
  background: var(--green);
  border-radius: 8px;
}

.trust-grid h3,
.service-grid h3 {
  margin-bottom: 12px;
}

.trust-grid p,
.service-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.astra-info {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1.12fr);
  gap: clamp(26px, 5vw, 64px);
  align-items: center;
}

.astra-copy p {
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.astra-points {
  display: grid;
  gap: 14px;
}

.astra-points article {
  padding: 22px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 42px rgba(16, 32, 48, 0.08);
}

.astra-points h3 {
  margin-bottom: 10px;
}

.astra-points p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.original {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  background:
    linear-gradient(135deg, rgba(7, 54, 95, 0.96), rgba(12, 101, 180, 0.9)),
    radial-gradient(circle at 90% 20%, rgba(95, 166, 24, 0.4), transparent 30%);
}

.original h2,
.original p,
.original .eyebrow {
  color: var(--white);
}

.original-copy p {
  max-width: 680px;
  font-size: 18px;
  line-height: 1.65;
}

.compare-table {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.compare-card {
  padding: 24px;
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.18);
}

.compare-card h3 {
  margin-bottom: 18px;
  font-size: 26px;
}

.compare-card ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.compare-card li {
  position: relative;
  padding-left: 24px;
  color: var(--muted);
  line-height: 1.45;
}

.compare-card li::before {
  position: absolute;
  top: 0.2em;
  left: 0;
  display: grid;
  place-items: center;
  width: 16px;
  height: 16px;
  color: var(--white);
  font-size: 11px;
  font-weight: 900;
  border-radius: 50%;
}

.compare-card.good li::before {
  content: "✓";
  background: var(--green);
}

.compare-card.bad {
  background: #fff8f0;
  border-color: #f2d6b8;
}

.compare-card.bad li::before {
  content: "!";
  background: #d9822b;
}

.compare-label {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.compare-card.bad .compare-label {
  color: #a85716;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 28px;
}

.brand-cards {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.product-card {
  overflow: hidden;
}

.product-card-body {
  padding: 0 28px 28px;
}

.product-card p,
.product-card li {
  color: var(--muted);
  line-height: 1.55;
}

.product-card ul {
  display: grid;
  gap: 8px;
  margin-bottom: 0;
  padding: 0 0 0 18px;
}

.product-type {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

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

.difference-grid article {
  padding: 24px;
  box-shadow: 0 14px 42px rgba(16, 32, 48, 0.08);
}

.difference-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  color: var(--white);
  font-weight: 900;
  background: var(--blue);
  border-radius: 8px;
}

.difference-grid h3 {
  min-height: 52px;
  margin-bottom: 12px;
}

.difference-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.catalog .section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}

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

.catalog-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  box-shadow: 0 14px 42px rgba(16, 32, 48, 0.09);
}

.catalog-photo {
  display: grid;
  place-items: center;
  min-height: 210px;
  padding: 22px;
  background: linear-gradient(180deg, #f4fbff, #ffffff);
  border-bottom: 1px solid var(--line);
}

.catalog-photo img {
  display: block;
  width: 100%;
  max-width: 220px;
  height: 170px;
  object-fit: contain;
  filter: drop-shadow(0 18px 22px rgba(7, 54, 95, 0.14));
}

.catalog-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 22px;
}

.catalog-body h3 {
  margin-bottom: 14px;
  font-size: 22px;
}

.catalog-body ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  color: var(--muted);
  line-height: 1.45;
  list-style: none;
}

.model-meta {
  display: grid;
  gap: 10px;
  margin-top: auto;
  padding-top: 18px;
}

.model-meta strong {
  color: var(--blue-dark);
  font-size: 22px;
  line-height: 1;
}

.model-meta a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 900;
  background: rgba(12, 101, 180, 0.08);
  border-radius: 8px;
}

.model-meta a:hover {
  color: var(--white);
  background: var(--blue);
}

.catalog-body li {
  position: relative;
  padding-left: 18px;
}

.catalog-body li::before {
  position: absolute;
  top: 0.58em;
  left: 0;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--blue);
  border-radius: 50%;
}

.tag {
  width: fit-content;
  margin-bottom: 12px;
  padding: 6px 10px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  background: rgba(12, 101, 180, 0.09);
  border-radius: 999px;
}

.tag.green {
  color: var(--green-dark);
  background: rgba(95, 166, 24, 0.12);
}

.tag.green + h3 + ul li::before {
  background: var(--green);
}

.catalog-action {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
  padding: 24px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.catalog-action p {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.estimate {
  background: linear-gradient(135deg, #07365f 0%, #0c65b4 100%);
}

.estimate-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(24px, 5vw, 70px);
  align-items: center;
  color: var(--white);
}

.estimate-panel h2,
.estimate-panel .eyebrow,
.estimate-panel p {
  color: var(--white);
}

.estimate-panel p {
  max-width: 640px;
  font-size: 18px;
  line-height: 1.6;
}

.estimate-list {
  display: grid;
  gap: 14px;
}

.estimate-list article {
  display: grid;
  grid-template-columns: minmax(130px, 0.4fr) minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 18px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
}

.estimate-list b {
  font-size: 20px;
}

.estimate-list span {
  color: rgba(255, 255, 255, 0.78);
}

.product-visual {
  display: grid;
  place-items: center;
  overflow: hidden;
  height: 340px;
  margin-bottom: 24px;
  background: var(--soft);
}

.product-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-visual.astra {
  background: #eaf4f6;
}

.product-visual.astra img {
  width: 100%;
  max-width: none;
  height: 340px;
  object-fit: contain;
}

.timeline {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.timeline b {
  color: var(--green);
  font-size: 28px;
}

.timeline p,
.proof-grid p,
.faq p {
  color: var(--muted);
  line-height: 1.55;
}

.supervision .section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.supervision-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.supervision-card {
  padding: 28px;
  box-shadow: 0 14px 42px rgba(16, 32, 48, 0.08);
}

.supervision-card.accent {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  border-color: transparent;
}

.supervision-card.accent h3,
.supervision-card.accent li {
  color: var(--white);
}

.supervision-card ul {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.supervision-card li {
  position: relative;
  padding-left: 24px;
  color: var(--muted);
  line-height: 1.45;
}

.supervision-card li::before {
  position: absolute;
  top: 0.35em;
  left: 0;
  width: 10px;
  height: 10px;
  content: "";
  background: var(--green);
  border-radius: 50%;
}

.supervision-card .btn {
  margin-top: 26px;
}

.engineer {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(7, 54, 95, 0.96), rgba(12, 101, 180, 0.88)),
    url("https://static.tildacdn.com/tild3533-6532-4435-b834-643637636666/photo_2020-07-14_15-.jpg") center / cover;
}

.engineer h2,
.engineer p,
.engineer .eyebrow {
  color: var(--white);
}

.engineer-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.engineer-points li {
  padding: 12px 14px;
  color: var(--white);
  font-weight: 700;
  line-height: 1.35;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
}

.compact-form {
  padding: 18px;
  background: rgba(255, 255, 255, 0.98);
  border-radius: 8px;
}

.compact-form input {
  flex: 1 1 220px;
}

.proof-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.proof-grid strong {
  display: block;
  margin-bottom: 14px;
  color: var(--blue);
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1;
}

.quiz-form {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 22px;
}

.quiz-form .wide {
  grid-column: 1 / -1;
}

.faq {
  display: grid;
  gap: 14px;
}

.faq .section-heading {
  margin-bottom: 10px;
}

.faq details {
  padding: 20px 22px;
}

.faq summary {
  color: var(--blue-dark);
  font-weight: 800;
  cursor: pointer;
}

.faq p {
  margin: 14px 0 0;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(18px, 4vw, 56px);
  color: var(--white);
  background: var(--blue-dark);
}

.site-footer p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.site-footer a {
  font-weight: 800;
  white-space: nowrap;
}

.mobile-cta {
  display: none;
}

@media (max-width: 980px) {
  .desktop-nav {
    display: none;
  }

  .hero,
  .lead-strip,
  .estimate-panel,
  .original,
  .astra-info,
  .split,
  .engineer {
    grid-template-columns: 1fr;
  }

  .hero-badges,
  .lead-strip .lead-form,
  .choice-grid,
  .difference-grid,
  .trust-grid,
  .service-grid,
  .catalog-grid,
  .proof-grid,
  .quiz-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .site-header {
    min-height: 70px;
    gap: 10px;
  }

  .brand {
    min-width: 0;
  }

  .brand-icon {
    width: 40px;
    height: 40px;
  }

  .brand strong {
    font-size: 17px;
  }

  .brand small {
    display: none;
  }

  .phone {
    font-size: 14px;
  }

  .hero {
    min-height: auto;
    padding-top: 46px;
    background: linear-gradient(180deg, #f7fcff 0%, #ffffff 78%);
  }

  .hero-product {
    min-height: 430px;
  }

  .station {
    height: 390px;
  }

  .station-body {
    width: 210px;
    height: 300px;
  }

  .station-cap {
    width: 174px;
    height: 64px;
  }

  .station-line {
    width: 136px;
  }

  .line-one {
    top: 152px;
  }

  .line-two {
    top: 214px;
  }

  .station-water {
    width: 150px;
    height: 64px;
  }

  .product-note {
    width: 126px;
    padding: 13px;
  }

  .product-note strong {
    font-size: 24px;
  }

  .lead-strip {
    margin-top: 0;
  }

  .hero-actions,
  .compact-form {
    flex-direction: column;
  }

  .hero-actions .btn,
  .compact-form .btn {
    width: 100%;
  }

  .hero-badges,
  .lead-strip .lead-form,
  .choice-grid,
  .brand-cards,
  .difference-grid,
  .compare-table,
  .trust-grid,
  .service-grid,
  .catalog-grid,
  .timeline,
  .supervision-layout,
  .proof-grid,
  .engineer-points,
  .quiz-form {
    grid-template-columns: 1fr;
  }

  .hero-badges li {
    min-height: auto;
  }

  .product-visual {
    height: 300px;
  }

  .product-visual.astra img {
    height: 300px;
  }

  .catalog-action .btn {
    width: 100%;
  }

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

  .site-footer {
    flex-direction: column;
    padding-bottom: 104px;
  }

  .mobile-cta {
    position: fixed;
    right: 14px;
    bottom: 14px;
    left: 14px;
    z-index: 30;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 16px 44px rgba(16, 32, 48, 0.18);
    backdrop-filter: blur(14px);
  }

  .mobile-cta a {
    display: grid;
    place-items: center;
    min-height: 46px;
    color: var(--white);
    font-weight: 900;
    background: var(--green);
    border-radius: 8px;
  }

  .mobile-cta a:first-child {
    background: var(--blue);
  }
}