:root {
  --ink: #2b3338;
  --muted: #68737a;
  --line: #dfe6ea;
  --paper: #ffffff;
  --soft: #f5f8fa;
  --deep: #303940;
  --deep-2: #22282d;
  --teal: #006fb8;
  --green: #5f6870;
  --amber: #006fb8;
  --blue-soft: #e6f2fb;
  --brand-sky: #d9effa;
  --brand-sky-bg:
    linear-gradient(135deg, rgba(255, 255, 255, 0.78), rgba(203, 235, 250, 0.72)),
    var(--brand-sky);
  --brand-sky-line: rgba(0, 111, 184, 0.2);
  --shadow: 0 24px 70px rgba(31, 43, 50, 0.14);
  --radius: 8px;
  --hero-title-size: clamp(1.75rem, 4.2vw, 3.92rem);
  --page-max: 1680px;
  --page-gutter: clamp(18px, 2.8vw, 54px);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.container {
  width: min(var(--page-max), calc(100% - (var(--page-gutter) * 2)));
  margin: 0 auto;
}

.skip-link,
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link:focus {
  z-index: 50;
  width: auto;
  height: auto;
  padding: 12px 16px;
  clip: auto;
  color: var(--paper);
  background: var(--deep);
}

.section {
  padding: 86px 0;
}

.section--brand-blue,
.surface-brand-blue {
  background: var(--brand-sky-bg);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1,
h2 {
  line-height: 1.08;
}

h1 {
  max-width: 720px;
  margin-bottom: 22px;
  color: var(--paper);
  font-size: var(--hero-title-size);
  font-weight: 850;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.8rem);
  font-weight: 820;
}

h3 {
  font-size: 1.35rem;
  line-height: 1.2;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 750;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button--primary {
  color: var(--paper);
  background: var(--amber);
  border-color: var(--amber);
}

.button--ghost {
  color: var(--paper);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.38);
}

.button--outline {
  color: var(--teal);
  background: rgba(255, 255, 255, 0.55);
  border-color: rgba(0, 111, 184, 0.32);
}

.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  color: var(--ink);
  transition: background 200ms ease, box-shadow 200ms ease;
}

.site-header.is-scrolled {
  background: transparent;
  box-shadow: none;
}

.topbar {
  color: var(--muted);
  border-bottom: 1px solid var(--brand-sky-line);
  background: var(--brand-sky-bg);
  font-size: 0.88rem;
}

.topbar a {
  color: var(--deep);
  font-weight: 760;
}

.topbar span {
  color: var(--teal);
  font-weight: 760;
}

.topbar__inner {
  display: flex;
  min-height: 38px;
  align-items: center;
  justify-content: flex-end;
  gap: 28px;
  min-width: 0;
}

.navbar__inner {
  display: flex;
  min-height: 98px;
  align-items: center;
  gap: clamp(14px, 1.7vw, 28px);
  min-width: 0;
}

.navbar {
  background: var(--brand-sky-bg);
  border-bottom: 1px solid var(--brand-sky-line);
  box-shadow: 0 18px 42px rgba(31, 43, 50, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 1 clamp(250px, 27vw, 355px);
  min-width: 270px;
  margin-right: 0;
  padding: 6px 0;
  position: relative;
}

.brand::after {
  display: none;
}

.brand__logo {
  width: min(350px, 100%);
  height: 76px;
  object-fit: contain;
  object-position: left center;
}

.menu {
  display: flex;
  align-items: center;
  gap: clamp(6px, 0.9vw, 14px);
  margin: 0;
  margin-left: 0;
  padding: 0;
  list-style: none;
  font-weight: 720;
  min-width: 0;
}

.menu li {
  display: flex;
}

.menu-item {
  position: relative;
}

.menu a,
.menu-trigger {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 clamp(8px, 0.8vw, 13px);
  position: relative;
  border: 0;
  border-left: 0;
  border-radius: var(--radius);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
}

.menu a:hover,
.menu a:focus-visible,
.menu a[aria-current="page"],
.menu-trigger:hover,
.menu-trigger:focus-visible,
.menu-trigger[aria-current="page"] {
  color: var(--amber);
}

.menu a::after,
.menu-trigger::after {
  position: absolute;
  right: 15px;
  bottom: 4px;
  left: 15px;
  height: 3px;
  border-radius: 999px;
  background: currentColor;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity 160ms ease, transform 160ms ease;
  content: "";
}

.menu a:hover::after,
.menu a:focus-visible::after,
.menu a[aria-current="page"]::after,
.menu-trigger:hover::after,
.menu-trigger:focus-visible::after,
.menu-trigger[aria-current="page"]::after {
  opacity: 1;
  transform: translateY(0);
}

.submenu {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 40;
  min-width: 220px;
  margin: 0;
  padding: 10px;
  list-style: none;
  border: 1px solid rgba(95, 104, 112, 0.14);
  border-top: 3px solid var(--teal);
  border-radius: 0 0 var(--radius) var(--radius);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 22px 46px rgba(31, 43, 50, 0.16);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 170ms ease, transform 170ms ease;
}

.has-submenu:hover .submenu,
.has-submenu:focus-within .submenu,
.has-submenu.is-open .submenu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.submenu li {
  display: block;
}

.submenu a {
  display: flex;
  align-items: center;
  padding: 11px 12px;
  border-left: 0;
  border-radius: var(--radius);
  color: var(--ink);
  white-space: nowrap;
}

.submenu a::after {
  display: none;
}

.submenu a:hover,
.submenu a:focus-visible,
.submenu a[aria-current="page"] {
  color: var(--teal);
  background: var(--blue-soft);
}

.nav-cta {
  flex: 0 0 auto;
  align-self: center;
  margin-left: auto;
  padding: 12px clamp(15px, 1.25vw, 20px);
  color: var(--paper);
  background: var(--teal);
  border: 1px solid var(--teal);
  border-radius: var(--radius);
  box-shadow: 0 12px 26px rgba(0, 111, 184, 0.2);
  font-weight: 760;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid rgba(95, 104, 112, 0.28);
  border-radius: var(--radius);
  color: inherit;
  background: transparent;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: max(760px, 100vh);
  background: var(--deep-2);
  overflow: hidden;
}

.hero__media,
.hero-slide {
  position: absolute;
  inset: 0;
}

.hero-slide {
  display: grid;
  align-items: center;
  padding-top: 116px;
  opacity: 0;
  pointer-events: none;
  background-image:
    linear-gradient(90deg, rgba(16, 24, 30, 0.97) 0%, rgba(24, 35, 42, 0.86) 44%, rgba(20, 32, 39, 0.56) 100%),
    var(--hero-image);
  background-position: center;
  background-size: cover;
  transition: opacity 560ms ease;
}

.hero-slide.is-active {
  opacity: 1;
  pointer-events: auto;
}

.hero-slide h1,
.hero-slide h2 {
  max-width: 760px;
  color: var(--paper);
  font-size: var(--hero-title-size);
  font-weight: 850;
}

.hero-slide p:not(.eyebrow) {
  max-width: 640px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.16rem;
}

.hero .eyebrow {
  color: #78c6f3;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.hero-controls {
  position: absolute;
  right: 0;
  bottom: 34px;
  left: 0;
  z-index: 5;
  display: flex;
  justify-content: center;
  gap: 12px;
}

.hero-dot {
  width: 42px;
  height: 5px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.38);
  cursor: pointer;
}

.hero-dot.is-active {
  background: var(--amber);
}

.intro {
  background: var(--paper);
}

.intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 54px;
  align-items: start;
}

.intro__copy {
  color: var(--muted);
  font-size: 1.08rem;
}

.home-message {
  background: var(--brand-sky-bg);
}

.home-message__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 56px;
  align-items: center;
}

.home-message h2 {
  max-width: 740px;
  color: var(--deep);
}

.home-message__copy {
  color: var(--muted);
  font-size: 1.08rem;
}

.home-message__copy p:last-child {
  margin-bottom: 0;
}

.home-stats {
  padding: 0;
  background: var(--brand-sky-bg);
  border-top: 1px solid var(--brand-sky-line);
  border-bottom: 1px solid var(--brand-sky-line);
}

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

.home-stats__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  min-height: 132px;
  align-content: center;
  align-items: start;
  padding: 24px clamp(18px, 2vw, 34px);
  border-left: 1px solid rgba(0, 111, 184, 0.12);
}

.home-stats__item:last-child {
  border-right: 1px solid rgba(0, 111, 184, 0.12);
}

.home-stats__value {
  display: block;
  color: var(--deep);
  font-size: clamp(1.7rem, 2.4vw, 2.45rem);
  font-weight: 860;
  line-height: 1;
}

.home-stats__icon,
.home-principles__icon {
  display: inline-flex;
  width: 38px;
  height: 38px;
  color: var(--blue);
}

.home-stats__icon svg,
.home-principles__icon svg {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.home-stats__label {
  display: block;
  margin-top: 6px;
  color: var(--deep);
  font-weight: 760;
  line-height: 1.35;
}

.home-principles {
  background: var(--soft);
}

.home-principles__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.home-principles article {
  min-height: 230px;
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 28px 26px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--teal);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 14px 42px rgba(31, 43, 50, 0.08);
}

.home-principles article h3,
.home-principles article p,
.home-principles article ul {
  grid-column: 1;
}

.home-principles__icon {
  width: 42px;
  height: 42px;
}

.home-principles h3 {
  font-size: clamp(1.05rem, 1.2vw, 1.22rem);
  line-height: 1.22;
}

.home-principles p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.home-principles__list {
  display: grid;
  gap: 5px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.94rem;
}

.home-principles__list li::marker {
  color: var(--teal);
}

.home-principles__list--check {
  padding-left: 0;
  list-style: none;
}

.home-principles__list--check li {
  position: relative;
  padding-left: 24px;
}

.home-principles__list--check li::before {
  position: absolute;
  left: 0;
  top: 0;
  color: var(--blue);
  font-weight: 900;
  content: "✓";
}

.home-cta {
  color: var(--paper);
  background:
    linear-gradient(135deg, rgba(34, 40, 45, 0.96), rgba(0, 111, 184, 0.86)),
    url("assets/service-wentylacja.png") center / cover;
}

.home-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 34px;
  align-items: center;
}

.home-cta h2 {
  max-width: 780px;
  color: var(--paper);
}

.home-cta p:not(.eyebrow) {
  max-width: 720px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.8);
}

.home-cta .button {
  white-space: nowrap;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 42px;
  text-align: center;
}

.section-heading:not(.section-heading--left) {
  margin-right: auto;
  margin-left: auto;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.05rem;
}

.section-heading--left {
  text-align: left;
}

.services {
  background: var(--soft);
}

.service-list {
  display: grid;
  gap: 26px;
}

.service {
  display: grid;
  grid-template-columns: minmax(260px, 0.95fr) minmax(280px, 1fr);
  min-height: 360px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.service--reverse {
  grid-template-columns: minmax(280px, 1fr) minmax(260px, 0.95fr);
}

.service--reverse img {
  order: 2;
}

.service img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
}

.service__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(28px, 5vw, 58px);
}

.service__number {
  width: max-content;
  margin-bottom: 20px;
  padding: 6px 10px;
  border-radius: var(--radius);
  color: var(--paper);
  background: var(--teal);
  font-weight: 850;
}

.service__body p {
  color: var(--muted);
}

.service__body a {
  width: max-content;
  margin-top: 16px;
  color: var(--teal);
  font-weight: 800;
}

.offer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.offer-tags span {
  padding: 11px 14px;
  border: 1px solid rgba(0, 111, 184, 0.18);
  border-radius: var(--radius);
  color: var(--deep);
  background: var(--paper);
  font-weight: 750;
}

.process {
  color: var(--paper);
  background:
    linear-gradient(135deg, rgba(34, 40, 45, 0.96), rgba(0, 111, 184, 0.78)),
    url("assets/hero-hvac.png") center / cover;
}

.process__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 44px;
  align-items: center;
}

.process .section-heading p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.78);
}

.process-grid {
  display: grid;
  gap: 18px;
}

.process-card {
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
}

.process-card span {
  display: grid;
  width: 40px;
  height: 40px;
  margin-bottom: 20px;
  place-items: center;
  border-radius: var(--radius);
  color: var(--paper);
  background: var(--amber);
  font-weight: 900;
}

.process-card p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.76);
}

.stats {
  background: var(--paper);
}

.stats__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: center;
}

.stats-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.stats-list article {
  padding: 26px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}

.stats-list strong {
  display: block;
  color: var(--teal);
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 1;
}

.stats-list span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-weight: 720;
}

.partners {
  overflow: hidden;
  padding: 0 0 38px;
  background: var(--soft);
}

.partners__marquee {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--brand-sky-line);
  border-bottom: 1px solid var(--brand-sky-line);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: 0 18px 42px rgba(31, 43, 50, 0.08);
}

.partners__marquee::before,
.partners__marquee::after {
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: 2;
  width: min(140px, 14vw);
  pointer-events: none;
  content: "";
}

.partners__marquee::before {
  left: 0;
  background: linear-gradient(90deg, var(--soft), rgba(245, 248, 250, 0));
}

.partners__marquee::after {
  right: 0;
  background: linear-gradient(270deg, var(--soft), rgba(245, 248, 250, 0));
}

.partners__track {
  display: flex;
  width: max-content;
  min-width: 100%;
  gap: clamp(18px, 3vw, 46px);
  align-items: center;
  padding: 18px 0;
  animation: partners-scroll 34s linear infinite;
}

.partner-logo {
  display: inline-flex;
  min-width: 180px;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border: 1px solid rgba(0, 111, 184, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 28px rgba(31, 43, 50, 0.08);
}

.partner-logo img {
  width: 150px;
  max-width: 100%;
  height: 46px;
  object-fit: contain;
}

.partners__marquee:hover .partners__track {
  animation-play-state: paused;
}

@keyframes partners-scroll {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

.page-hero {
  min-height: 460px;
  display: grid;
  align-items: end;
  padding: 170px 0 76px;
  color: var(--paper);
  background-image:
    linear-gradient(90deg, rgba(16, 24, 30, 0.97) 0%, rgba(24, 35, 42, 0.86) 48%, rgba(20, 32, 39, 0.58) 100%),
    var(--page-image, url("assets/hero-hvac.png"));
  background-position: center;
  background-size: cover;
}

.page-hero h1 {
  max-width: 820px;
  margin-bottom: 18px;
}

.page-hero p:not(.eyebrow) {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.12rem;
}

.page-hero .eyebrow {
  color: #78c6f3;
}

.page-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 48px;
  align-items: start;
}

.lead-copy {
  color: var(--muted);
  font-size: 1.08rem;
}

.lead-copy h3 {
  margin: 26px 0 8px;
  color: var(--ink);
  font-size: 1.14rem;
}

.service-logo-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: min(100%, 280px);
  min-height: 92px;
  margin-bottom: 22px;
  padding: 20px 28px;
  border: 1px solid var(--brand-sky-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 16px 36px rgba(23, 51, 70, 0.08);
}

.service-logo-card img {
  display: block;
  width: min(220px, 100%);
  max-height: 58px;
  object-fit: contain;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
}

.check-list li::before {
  position: absolute;
  top: 0.2em;
  left: 0;
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border-radius: 50%;
  color: var(--paper);
  background: var(--teal);
  font-size: 0.74rem;
  font-weight: 900;
  line-height: 1;
  content: "✓";
}

.feature-grid,
.reference-grid,
.project-grid,
.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.reference-card,
.project-card,
.detail-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 14px 42px rgba(31, 43, 50, 0.08);
}

.feature-card span,
.detail-card span {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 6px 10px;
  border-radius: var(--radius);
  color: var(--paper);
  background: var(--teal);
  font-weight: 850;
}

.feature-card p,
.reference-card p,
.project-card p,
.detail-card p {
  color: var(--muted);
}

.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.knowledge-card {
  display: grid;
  gap: 16px;
  align-content: start;
  min-height: 260px;
  padding: 30px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--teal);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 14px 42px rgba(31, 43, 50, 0.08);
}

.knowledge-card h2 {
  margin: 0;
  color: var(--ink);
  font-size: 1.35rem;
  line-height: 1.25;
}

.knowledge-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.knowledge-card a {
  align-self: end;
  color: var(--teal);
  font-weight: 900;
  text-decoration: none;
}

.knowledge-card a:hover {
  text-decoration: underline;
}

.article-body {
  display: grid;
  gap: 34px;
}

.article-body section {
  display: grid;
  gap: 14px;
  max-width: 980px;
}

.article-body h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.45rem, 2.2vw, 2.3rem);
  line-height: 1.16;
}

.article-body p,
.article-body li {
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.78;
}

.article-body ul {
  margin: 0;
  padding-left: 22px;
}

.quote-mark {
  color: var(--teal);
  font-size: 3rem;
  line-height: 0.8;
}

.project-card img {
  width: calc(100% + 52px);
  max-width: none;
  height: 210px;
  margin: -26px -26px 22px;
  object-fit: cover;
}

.page-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: 34px;
  border-radius: var(--radius);
  color: var(--paper);
  background: linear-gradient(135deg, var(--deep-2), var(--teal));
}

.page-cta p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.78);
}

.page-cta__copy {
  display: grid;
  min-width: 0;
  gap: 10px;
}

.page-cta__copy h2,
.page-cta__copy p {
  margin: 0;
}

.page-cta__copy h2 {
  max-width: 900px;
  color: #fff;
  font-size: clamp(1.7rem, 3vw, 2.65rem);
  line-height: 1.08;
}

.page-cta .button {
  justify-self: end;
  white-space: nowrap;
}

.seo-links {
  display: grid;
  gap: 12px;
}

.seo-links a {
  display: block;
  padding: 14px 16px;
  border: 1px solid rgba(0, 111, 184, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  color: var(--deep);
  font-weight: 850;
  text-decoration: none;
}

.seo-links a:hover {
  color: var(--teal);
  border-color: rgba(0, 111, 184, 0.36);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--brand-sky-line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 12px 26px rgba(11, 28, 43, 0.06);
}

.faq-list summary {
  cursor: pointer;
  padding: 18px 20px;
  color: var(--deep);
  font-weight: 850;
}

.faq-list p {
  margin: 0;
  padding: 0 20px 20px;
  color: var(--muted);
}

.placeholder-panel {
  display: grid;
  gap: 20px;
  max-width: 980px;
  padding: clamp(30px, 5vw, 58px);
  border: 1px solid var(--brand-sky-line);
  border-top: 4px solid var(--teal);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

.placeholder-panel h2 {
  max-width: 820px;
  margin-bottom: 0;
}

.placeholder-panel p {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.placeholder-panel .eyebrow {
  color: var(--teal);
}

.placeholder-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}

.realization-map {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 28px;
  align-items: stretch;
}

.realization-map__info {
  display: grid;
  align-content: start;
  gap: 18px;
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid var(--brand-sky-line);
  border-top: 4px solid var(--teal);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow);
}

.realization-map__info h2,
.realization-map__info p {
  margin-bottom: 0;
}

.realization-details {
  width: 100%;
  margin-top: 4px;
  overflow: hidden;
  border: 1px solid var(--brand-sky-line);
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
}

.realization-details th,
.realization-details td {
  padding: 15px 16px;
  border-bottom: 1px solid rgba(0, 111, 184, 0.14);
  text-align: left;
  vertical-align: top;
}

.realization-details tr:last-child th,
.realization-details tr:last-child td {
  border-bottom: 0;
}

.realization-details th {
  width: 98px;
  color: var(--deep);
  font-size: 0.9rem;
  font-weight: 850;
}

.realization-details td {
  color: var(--muted);
}

.realization-details td[data-realization-name] {
  color: var(--deep);
  font-weight: 850;
}

.realization-map__frame {
  position: relative;
  z-index: 0;
  isolation: isolate;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid var(--brand-sky-line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 70% 22%, rgba(0, 111, 184, 0.12), transparent 34%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(217, 239, 250, 0.78));
  box-shadow: var(--shadow);
}

.realizations-leaflet-map {
  width: 100%;
  min-height: 560px;
  height: 100%;
}

.leaflet-popup-content-wrapper {
  border-radius: var(--radius);
}

.leaflet-popup-content {
  min-width: 190px;
  color: var(--deep);
  font-family: inherit;
}

.leaflet-popup-content strong {
  display: block;
  margin-bottom: 4px;
}

.realization-popup-link {
  display: grid;
  gap: 4px;
  color: var(--deep);
  text-decoration: none;
}

.realization-popup-link span {
  color: var(--muted);
}

.realization-popup-link__action {
  margin-top: 5px;
  color: var(--brand-blue) !important;
  font-weight: 800;
}

.contact {
  background: var(--soft);
}

.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: 42px;
  align-items: start;
}

.contact__content p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.05rem;
}

.contact-box {
  display: grid;
  gap: 14px;
  margin-top: 30px;
  padding: 24px;
  border-left: 4px solid var(--amber);
  background: var(--paper);
  list-style: none;
}

.contact-box li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 14px;
  align-items: start;
}

.contact-box a {
  color: var(--deep);
  font-weight: 800;
  text-decoration: none;
}

.contact-box a:hover {
  color: var(--blue);
}

.contact-qr {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 14px 34px rgba(31, 43, 50, 0.07);
}

.contact-qr img {
  display: block;
  width: 58px;
  height: 58px;
  padding: 4px;
  border: 1px solid rgba(0, 111, 184, 0.14);
  border-radius: 8px;
  background: #fff;
}

.contact-qr h3 {
  margin-bottom: 6px;
  font-size: 1.05rem;
}

.contact-qr p {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}

.contact-qr a {
  color: var(--blue);
  font-weight: 850;
  text-decoration: none;
}

.contact-qr a:hover {
  text-decoration: underline;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.form-honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: var(--deep);
  font-weight: 760;
}

.radio-group {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  border: 0;
}

.radio-group legend {
  margin-bottom: 2px;
  color: var(--deep);
  font-weight: 760;
}

.radio-group label {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-weight: 650;
  line-height: 1.35;
}

.contact-form .radio-group input[type="radio"] {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--teal);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px 14px;
  color: var(--ink);
  background: #fbfcfc;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--teal);
  outline: 3px solid rgba(0, 111, 184, 0.15);
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--green);
  font-weight: 760;
}

.privacy-note {
  margin: 2px 0 0;
  padding: 14px 16px;
  border-left: 4px solid var(--blue);
  background: rgba(0, 111, 184, 0.07);
  color: rgba(23, 35, 52, 0.82);
  font-size: 0.92rem;
  line-height: 1.6;
}

.privacy-note a,
.form-consent a,
.footer-legal a,
.privacy-content a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

.privacy-note a:hover,
.form-consent a:hover,
.footer-legal a:hover,
.privacy-content a:hover {
  text-decoration: underline;
}

.contact-form .form-consent {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: rgba(23, 35, 52, 0.9);
  font-size: 0.94rem;
  line-height: 1.55;
}

.contact-form .form-consent__text {
  display: block;
  min-width: 0;
}

.form-consent a {
  overflow-wrap: anywhere;
}

.contact-form .form-consent input {
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--blue);
}

.footer {
  color: #172334;
  background: var(--brand-sky-bg);
}

.footer__topline {
  height: 38px;
  background:
    linear-gradient(rgba(0, 111, 184, 0.48), rgba(0, 111, 184, 0.48)),
    url("assets/hero-hvac.png") center 38% / cover;
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(300px, 1fr) minmax(280px, 0.92fr) minmax(230px, 0.72fr);
  gap: 70px;
  padding-top: 76px;
  padding-bottom: 74px;
}

.footer__logo-plate {
  width: min(350px, 100%);
  margin-bottom: 30px;
}

.footer__logo {
  display: block;
  width: 100%;
  height: 76px;
  object-fit: contain;
  object-position: left center;
}

.footer-contact {
  display: grid;
  gap: 17px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: rgba(23, 35, 52, 0.88);
}

.footer-contact li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 14px;
  align-items: start;
}

.footer-contact a {
  color: inherit;
  text-decoration: none;
}

.footer-contact a:hover {
  color: var(--blue);
}

.footer-contact__line {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  align-items: baseline;
}

.footer-contact__label {
  min-width: 88px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.footer-icon {
  display: inline-flex;
  width: 20px;
  height: 20px;
  color: var(--blue);
}

.footer-icon svg,
.footer-social svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer h3 {
  margin-bottom: 26px;
  color: #162033;
  font-size: 1.32rem;
  font-weight: 760;
}

.footer__poland-block p {
  max-width: 34ch;
  margin: 0 0 22px;
  color: rgba(23, 35, 52, 0.78);
  line-height: 1.65;
}

.footer-polish-mark {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  max-width: 360px;
  padding-top: 4px;
}

.footer-flag {
  display: grid;
  flex: 0 0 auto;
  width: 46px;
  height: 30px;
  overflow: hidden;
  border: 1px solid rgba(23, 35, 52, 0.2);
  border-radius: 2px;
  background:
    linear-gradient(to bottom, #ffffff 0 50%, #dc143c 50% 100%);
  box-shadow: none;
}

.footer-polish-mark strong {
  color: #162033;
  font-size: 0.94rem;
  line-height: 1.28;
}

.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  align-items: center;
}

.footer-social__icon {
  display: inline-grid;
  width: 56px;
  height: 56px;
  place-items: center;
  color: #162033;
  font-size: 4.1rem;
  font-weight: 900;
  line-height: 1;
  transition: color 160ms ease, transform 160ms ease;
}

.footer-social__icon--linkedin {
  font-size: 3.15rem;
  letter-spacing: -0.08em;
}

.footer-social__icon:hover,
.footer-social__icon:focus-visible {
  color: var(--blue);
  transform: translateY(-2px);
}

.footer-social__icon--disabled {
  cursor: default;
}

.footer-social__icon--disabled:hover {
  color: #162033;
  transform: none;
}

.footer-legal {
  display: grid;
  gap: 8px;
  padding: 22px 0 26px;
  border-top: 1px solid rgba(23, 35, 52, 0.14);
  color: rgba(23, 35, 52, 0.72);
  font-size: 0.82rem;
  line-height: 1.55;
}

.footer-legal p {
  max-width: 980px;
  margin: 0;
}

.footer-legal__links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 2px;
}

.footer--compact {
  margin-top: 0;
}

.footer--compact .footer-legal {
  border-top: 0;
}

.privacy-content {
  max-width: 980px;
}

.privacy-content article {
  display: grid;
  gap: 26px;
}

.privacy-content section {
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(23, 35, 52, 0.12);
}

.privacy-content section:last-child {
  border-bottom: 0;
}

.privacy-content h2 {
  margin: 0 0 12px;
  color: #24313c;
  font-size: clamp(1.35rem, 2vw, 2rem);
}

.privacy-content p,
.privacy-content li {
  color: rgba(23, 35, 52, 0.82);
  line-height: 1.75;
}

.privacy-content ul {
  margin: 0;
  padding-left: 22px;
}

@media (max-width: 1180px) {
  .topbar span {
    display: none;
  }

  .brand {
    flex-basis: clamp(230px, 26vw, 300px);
    min-width: 215px;
  }

  .brand__logo {
    height: 68px;
  }

  .navbar__inner {
    min-height: 90px;
  }

  .menu {
    font-size: 0.95rem;
  }

  .nav-cta {
    padding: 12px 14px;
  }

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

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

  .navbar__inner {
    min-height: 82px;
    align-items: center;
    gap: 12px;
  }

  .brand {
    min-width: min(230px, 68vw);
    margin-right: auto;
    padding: 8px 0;
  }

  .brand::after {
    display: none;
  }

  .brand__logo {
    width: min(220px, 68vw);
    height: 54px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .menu,
  .nav-cta {
    display: none;
  }

  .menu.is-open {
    position: fixed;
    top: 82px;
    right: 0;
    left: 0;
    display: grid;
    gap: 0;
    padding: 16px 20px 22px;
    max-height: calc(100vh - 82px);
    max-height: calc(100dvh - 82px);
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 20px 50px rgba(31, 43, 50, 0.18);
  }

  .menu.is-open a,
  .menu.is-open .menu-trigger {
    display: block;
    width: 100%;
    padding: 15px 0;
    border-bottom: 1px solid rgba(95, 104, 112, 0.14);
    text-align: left;
  }

  .menu.is-open a::after,
  .menu.is-open .menu-trigger::after {
    display: none;
  }

  .menu.is-open .has-submenu {
    display: block;
  }

  .menu.is-open .submenu {
    position: static;
    min-width: 0;
    margin: 0;
    padding: 0 0 0 16px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }

  .menu.is-open .submenu a {
    display: flex;
    padding: 11px 0;
    color: var(--muted);
  }

  .menu.is-open .submenu a:hover,
  .menu.is-open .submenu a:focus-visible,
  .menu.is-open .submenu a[aria-current="page"] {
    color: var(--teal);
    background: transparent;
  }

  .hero {
    min-height: 680px;
  }

  .hero-slide {
    padding-top: 88px;
    background-image:
      linear-gradient(90deg, rgba(22, 29, 34, 0.94) 0%, rgba(32, 41, 47, 0.84) 52%, rgba(31, 43, 50, 0.44) 100%),
      var(--hero-image);
  }

  .intro__grid,
  .home-message__grid,
  .home-cta__inner,
  .home-stats__grid,
  .process__inner,
  .stats__grid,
  .contact__grid,
  .page-grid,
  .footer__grid {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .reference-grid,
  .project-grid,
  .detail-grid,
  .knowledge-grid,
  .home-principles__grid {
    grid-template-columns: 1fr;
  }

  .home-stats__item {
    grid-template-columns: auto minmax(0, 1fr);
    min-height: 110px;
  }

  .home-principles article {
    grid-template-columns: 1fr;
  }

  .home-principles article h3,
  .home-principles article p,
  .home-principles article ul {
    grid-column: 1;
  }

  .home-principles__icon {
    grid-row: auto;
    margin-bottom: 12px;
  }

  .service,
  .service--reverse {
    grid-template-columns: 1fr;
  }

  .service--reverse img {
    order: 0;
  }

  .page-cta {
    grid-template-columns: 1fr;
  }

  .page-cta .button {
    justify-self: start;
  }

  .realization-map {
    grid-template-columns: 1fr;
  }

  .home-cta .button {
    width: max-content;
  }
}

@media (max-width: 680px) {
  :root {
    --hero-title-size: 1.85rem;
    --page-gutter: 14px;
  }

  .section {
    padding: 64px 0;
  }

  h1 {
    font-size: var(--hero-title-size);
  }

  h2 {
    font-size: 2.15rem;
  }

  .hero {
    min-height: 710px;
  }

  .page-hero {
    min-height: 420px;
    padding: 144px 0 58px;
  }

  .hero-slide {
    align-items: end;
    padding: 96px 0 96px;
    background-position: center right 36%;
  }

  .hero__actions {
    flex-direction: column;
  }

  .home-principles article {
    min-height: 0;
    padding: 24px;
  }

  .home-cta .button {
    width: 100%;
  }

  .contact-qr {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .service img {
    min-height: 240px;
  }

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

  .partners {
    padding-bottom: 26px;
  }

  .partners__track {
    gap: 14px;
    padding: 14px 0;
  }

  .partner-logo {
    min-width: 148px;
    min-height: 52px;
    padding: 9px 16px;
  }

  .partner-logo img {
    width: 126px;
    height: 40px;
  }

  .contact-form {
    padding: 22px;
  }

  .page-cta {
    padding: 24px;
  }
}


.realization-cards {
  display: grid;
  gap: 1rem;
}

.realization-card {
  position: relative;
  scroll-margin-top: 150px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-height: 430px;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(10, 35, 52, 0.12);
  border-top: 4px solid var(--brand-blue);
  border-radius: 8px;
  box-shadow: 0 16px 42px rgba(10, 35, 52, 0.08);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.realization-card:hover,
.realization-card:focus-within {
  transform: translateY(-3px);
  border-color: rgba(0, 111, 184, 0.34);
  box-shadow: 0 22px 54px rgba(10, 35, 52, 0.13);
}

.realization-card__content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(1.5rem, 3vw, 3rem);
}

.realization-card h3 {
  margin: 0.35rem 0 1rem;
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

.realization-card dl {
  display: grid;
  gap: 0.65rem;
  margin: 0 0 1rem;
}

.realization-card dl div {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 0.75rem;
}

.realization-card dt {
  color: var(--brand-blue);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.realization-card dd {
  margin: 0;
  color: var(--text);
}

.realization-card p {
  color: var(--muted);
}

.realization-card__contact {
  position: relative;
  z-index: 3;
  margin-top: auto;
}

.realization-card__media {
  position: relative;
  z-index: 0;
  display: grid;
  place-items: center;
  min-width: 0;
  padding: clamp(1.25rem, 2.5vw, 2.5rem);
  overflow: hidden;
  border-left: 1px solid rgba(0, 111, 184, 0.18);
  background: rgba(217, 239, 250, 0.46);
}

.realization-card__media img {
  width: min(100%, 620px);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 6px;
  box-shadow: 0 16px 38px rgba(10, 35, 52, 0.16);
}

.realization-card__media-label {
  position: absolute;
  right: clamp(1.5rem, 3vw, 3rem);
  bottom: clamp(1.5rem, 3vw, 3rem);
  padding: 9px 13px;
  border-radius: 6px;
  color: #fff;
  background: rgba(17, 29, 38, 0.88);
  font-size: 0.86rem;
  font-weight: 800;
}

.realization-card__gallery-link {
  position: absolute;
  z-index: 2;
  inset: 0;
}

.realization-card__gallery-link:focus-visible {
  outline: 3px solid var(--brand-blue);
  outline-offset: -5px;
}

.realization-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.realization-gallery__item {
  overflow: hidden;
  border: 1px solid var(--brand-sky-line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.realization-gallery__item--main {
  grid-column: 1 / -1;
}

.realization-gallery__item--standard img {
  aspect-ratio: 4 / 3;
}

.realization-gallery__item--portrait img {
  aspect-ratio: 3 / 4;
}

.realization-gallery__item--centered {
  grid-column: 1 / -1;
  justify-self: center;
  width: min(50%, 620px);
}

.realization-gallery__item img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.realization-gallery__item figcaption {
  padding: 16px 18px;
  color: var(--muted);
  font-size: 0.94rem;
}

@media (max-width: 900px) {
  .realization-card,
  .realization-gallery {
    grid-template-columns: 1fr;
  }

  .realization-card__media {
    min-height: 300px;
    border-top: 1px solid rgba(0, 111, 184, 0.18);
    border-left: 0;
  }

  .realization-gallery__item--main {
    grid-column: auto;
  }

  .realization-gallery__item--centered {
    grid-column: auto;
    width: 100%;
  }
}