:root {
  --blue: #273b7e;
  --blue-deep: #162458;
  --blue-soft: #eef2ff;
  --yellow: #f9da49;
  --yellow-strong: #d2a900;
  --yellow-soft: #fff7c4;
  --ink: #151824;
  --muted: #60677d;
  --paper: #f7f8fc;
  --white: #ffffff;
  --line: #e2e6f2;
  --shadow: 0 18px 50px rgba(22, 36, 88, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--white);
  box-shadow: 0 10px 32px rgba(22, 36, 88, 0.08);
}

.utility-bar,
.main-nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: 5vw;
}

.utility-bar {
  min-height: 42px;
  color: var(--white);
  background: var(--blue);
  font-size: 0.88rem;
  font-weight: 700;
}

.audience-tabs,
.utility-links,
.site-nav {
  display: flex;
  align-items: center;
}

.audience-tabs {
  gap: 8px;
}

.audience-tabs a {
  padding: 8px 12px;
  border-radius: 8px 8px 0 0;
}

.audience-tabs a:first-child {
  color: var(--blue-deep);
  background: var(--yellow);
}

.utility-links {
  gap: 22px;
  color: rgba(255, 255, 255, 0.86);
}

.main-nav-row {
  min-height: 96px;
}

.brand {
  display: inline-flex;
  align-items: center;
  width: min(330px, 58vw);
  padding: 8px 0;
}

.brand img {
  display: block;
  width: 100%;
  height: auto;
}

.site-nav {
  gap: 24px;
  color: var(--blue-deep);
  font-size: 0.96rem;
  font-weight: 800;
}

.site-nav a {
  color: var(--blue-deep);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--blue);
}

.nav-cta {
  min-height: 42px;
  padding: 10px 16px;
  color: var(--blue-deep) !important;
  background: var(--yellow);
  border-radius: 8px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--blue);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: clamp(680px, calc(100svh - 96px), 820px);
  padding: 92px 5vw 118px;
  overflow: hidden;
  background: var(--blue-deep);
}

.hero-background {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-background img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(22, 36, 88, 0.9) 0%, rgba(22, 36, 88, 0.72) 37%, rgba(22, 36, 88, 0.2) 68%, rgba(22, 36, 88, 0.08) 100%),
    linear-gradient(0deg, rgba(22, 36, 88, 0.42), transparent 42%);
  content: "";
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(650px, 92vw);
}

.eyebrow,
.section-kicker {
  margin: 0 0 16px;
  color: var(--yellow);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 680px;
  margin: 0;
  color: var(--white);
  font-size: clamp(2.35rem, 4.8vw, 4.85rem);
  line-height: 1.03;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 720px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 900;
  cursor: pointer;
}

.button-primary {
  color: var(--blue-deep);
  background: var(--yellow);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #ffe76d;
}

.button-secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.1);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(255, 255, 255, 0.8);
}

.quick-actions {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(1180px, 90vw);
  margin: -48px auto 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  box-shadow: var(--shadow);
}

.quick-actions a {
  display: grid;
  gap: 6px;
  min-height: 112px;
  padding: 24px;
  background: var(--white);
}

.quick-actions span {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.quick-actions strong {
  color: var(--ink);
  font-size: 1.1rem;
}

.section {
  padding: 96px 5vw;
}

.section-inner {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.68fr);
  gap: 36px;
  align-items: end;
  margin-bottom: 42px;
}

.section-heading.compact {
  display: block;
  max-width: 760px;
}

.project-heading {
  display: block;
  max-width: 860px;
}

.project-heading .section-kicker {
  margin-bottom: 14px;
}

.project-heading p {
  color: var(--blue-deep);
  font-size: clamp(1.35rem, 2.6vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
}

.section-heading .section-kicker {
  grid-column: 1 / -1;
  margin-bottom: -18px;
}

.section-kicker {
  color: var(--blue);
}

h2 {
  margin: 0;
  color: var(--blue-deep);
  font-size: clamp(2rem, 4.4vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  color: var(--blue-deep);
  font-size: 1.35rem;
  line-height: 1.15;
  letter-spacing: 0;
}

.section-heading p,
.split p,
.contact p {
  margin: 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.offers,
.support {
  background: var(--white);
}

.offer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
  gap: 18px;
}

.offer-card,
.support-grid article,
.solution-list article {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 8px 28px rgba(22, 36, 88, 0.07);
}

.offer-card {
  display: grid;
  grid-template-rows: 250px 1fr;
}

.offer-media {
  position: relative;
  height: 250px;
  min-height: 0;
  margin: 0;
  overflow: hidden;
  background: #f3f6fb;
}

.offer-media::after {
  display: none;
}

.offer-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  object-position: center;
}

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

.offer-solar img {
  object-position: center 62%;
}

.offer-heating img {
  object-fit: cover;
  object-position: center 58%;
}

.offer-heatpump img {
  object-position: center 58%;
}

.offer-floor img {
  object-position: center 58%;
}

.offer-cooling img {
  object-position: center 58%;
}

.offer-maintenance img {
  object-fit: cover;
  object-position: center 54%;
}

.offer-body {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 12px;
  padding: 24px;
}

.offer-body p {
  margin: 0;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.offer-body span,
.solution-list p,
.support-grid p,
.strength-grid span {
  color: var(--muted);
}

.offer-body a,
.support-grid a {
  width: fit-content;
  margin-top: 8px;
  color: var(--blue);
  font-weight: 900;
  border-bottom: 2px solid var(--yellow-strong);
}

.offer-body a {
  align-self: end;
}

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

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 1fr);
  gap: 64px;
  align-items: start;
}

.solution-list {
  display: grid;
  gap: 16px;
}

.solution-intro {
  display: grid;
  gap: 22px;
}

.solution-visual {
  margin: 12px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.solution-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.solution-list article {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  padding: 24px;
}

.method-steps article {
  min-height: 150px;
}

.solution-list span {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--blue-deep);
  background: var(--yellow);
  border-radius: 8px;
  font-weight: 900;
}

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

.support-grid article {
  display: grid;
  gap: 14px;
  min-height: 220px;
  padding: 28px;
}

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

.project-grid article {
  display: grid;
  gap: 12px;
  min-height: 190px;
  padding: 24px;
  border: 1px solid var(--line);
  border-top: 6px solid var(--yellow);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 8px 28px rgba(22, 36, 88, 0.07);
}

.project-grid strong {
  color: var(--blue-deep);
  font-size: 1.18rem;
  line-height: 1.2;
}

.project-grid span {
  color: var(--muted);
}

.work-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 280px;
  gap: 18px;
  margin-top: 34px;
}

.work-card {
  position: relative;
  min-height: 280px;
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  background: var(--blue-deep);
  box-shadow: 0 10px 28px rgba(22, 36, 88, 0.12);
}

.work-card-large {
  grid-column: span 2;
  grid-row: span 2;
}

.work-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 380ms ease;
}

.work-card:hover img,
.work-card:focus-within img {
  transform: scale(1.035);
}

.work-card::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 30%, rgba(22, 36, 88, 0.88)),
    linear-gradient(135deg, rgba(39, 59, 126, 0.2), rgba(249, 218, 73, 0.1));
  content: "";
}

.work-card figcaption {
  position: absolute;
  z-index: 1;
  left: 18px;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 6px;
  color: var(--white);
}

.work-card figcaption span {
  width: fit-content;
  padding: 6px 9px;
  color: var(--blue-deep);
  background: var(--yellow);
  border-radius: 8px;
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.work-card figcaption strong {
  max-width: 34ch;
  font-size: 1.04rem;
  line-height: 1.18;
}

.strengths {
  color: var(--white);
  background: var(--blue-deep);
}

.strengths h2,
.strengths h3 {
  color: var(--white);
}

.strengths .section-kicker {
  color: var(--yellow);
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.16);
}

.strength-grid div {
  display: grid;
  gap: 10px;
  min-height: 150px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.08);
}

.strength-grid strong {
  font-size: 1.1rem;
}

.strength-grid span {
  color: rgba(255, 255, 255, 0.76);
}

.cer {
  background:
    linear-gradient(135deg, rgba(238, 242, 255, 0.94), rgba(255, 247, 196, 0.38)),
    var(--paper);
}

.cer-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: 52px;
  align-items: start;
}

.cer-inner > div:first-child p:not(.section-kicker) {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.cer-grid {
  display: grid;
  gap: 16px;
}

.cer-grid article {
  display: grid;
  gap: 8px;
  padding: 22px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--blue);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 8px 28px rgba(22, 36, 88, 0.07);
}

.cer-grid span {
  color: var(--blue-deep);
  font-weight: 900;
}

.cer-grid p {
  margin: 0;
  color: var(--muted);
}

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

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.75fr);
  gap: 58px;
}

.contact-list {
  display: grid;
  gap: 12px;
  margin-top: 34px;
  color: var(--blue);
  font-weight: 900;
}

.contact-list a {
  width: fit-content;
}

.contact-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.contact-details article {
  display: grid;
  gap: 6px;
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--yellow);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 8px 24px rgba(22, 36, 88, 0.06);
}

.contact-details span {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.contact-details strong {
  color: var(--blue-deep);
  font-size: 1.04rem;
}

.contact-details p {
  margin: 0;
  color: var(--muted);
}

.contact-form {
  display: grid;
  gap: 18px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 900;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 13px 14px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(39, 59, 126, 0.12);
}

.contact-form textarea {
  resize: vertical;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--blue);
  font-weight: 900;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(3, minmax(150px, 0.6fr));
  gap: 34px;
  padding: 52px 5vw;
  color: rgba(255, 255, 255, 0.76);
  background: var(--blue-deep);
}

.site-footer img {
  display: block;
  width: min(260px, 100%);
  height: auto;
  margin-bottom: 18px;
  padding: 14px;
  background: var(--white);
  border-radius: 8px;
}

.site-footer div {
  display: grid;
  align-content: start;
  gap: 10px;
}

.site-footer strong {
  color: var(--yellow);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.82);
}

@media (max-width: 1040px) {
  .utility-links {
    display: none;
  }

  .site-nav {
    gap: 16px;
  }

  .hero {
    min-height: 720px;
  }

  .offer-grid,
  .services-grid,
  .support-grid,
  .project-grid,
  .work-gallery {
    grid-template-columns: 1fr;
  }

  .work-gallery {
    grid-auto-rows: 260px;
  }

  .work-card-large {
    grid-column: auto;
    grid-row: auto;
  }

  .section-heading,
  .split,
  .cer-inner,
  .contact-grid,
  .contact-details,
  .site-footer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .utility-bar {
    display: none;
  }

  .main-nav-row {
    min-height: 76px;
  }

  .brand {
    width: min(220px, 68vw);
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 5vw;
    right: 5vw;
    top: calc(100% + 10px);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 14px;
    border-radius: 8px;
  }

  .site-nav a:hover,
  .site-nav a:focus-visible {
    background: var(--blue-soft);
  }

  .nav-cta {
    margin-top: 4px;
    text-align: center;
  }

  .hero {
    min-height: 680px;
    padding: 76px 5vw 98px;
    align-items: end;
  }

  .hero-background img {
    object-position: 66% center;
  }

  .hero::after {
    background:
      linear-gradient(0deg, rgba(22, 36, 88, 0.92) 0%, rgba(22, 36, 88, 0.7) 48%, rgba(22, 36, 88, 0.18) 100%);
  }

  .hero h1 {
    font-size: clamp(2.25rem, 10vw, 3.8rem);
  }

  .quick-actions {
    grid-template-columns: 1fr;
    margin-top: -34px;
  }

  .quick-actions a {
    min-height: 92px;
  }

  .section {
    padding: 72px 5vw;
  }

  .section-heading .section-kicker {
    margin-bottom: -8px;
  }

  .solution-list article,
  .strength-grid {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .contact-form {
    padding: 20px;
  }
}