:root {
  --ink: #171717;
  --muted: #5d6470;
  --line: #e7e9ee;
  --paper: #ffffff;
  --soft: #f7f8fb;
  --warm: #f15a24;
  --warm-dark: #c93616;
  --gold: #f9b233;
  --green: #0f8a5f;
  --shadow: 0 18px 48px rgba(23, 23, 23, 0.12);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav {
  width: min(var(--max), calc(100% - 32px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 850;
  letter-spacing: 0;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--warm), #df1f13);
  border-radius: 8px;
  box-shadow: 0 8px 18px rgba(241, 90, 36, 0.24);
}

.brand-text {
  font-size: 1.02rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 10px 12px;
  border-radius: 8px;
  color: #29313d;
  font-size: 0.94rem;
  font-weight: 700;
  text-decoration: none;
}

.nav-links a:hover {
  background: var(--soft);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.phone-link {
  color: var(--warm-dark);
  font-weight: 850;
  text-decoration: none;
  white-space: nowrap;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 0;
  border-radius: 8px;
  background: var(--warm);
  color: #fff;
  font-weight: 850;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 10px 22px rgba(241, 90, 36, 0.22);
}

.button:hover {
  background: var(--warm-dark);
}

.button.secondary {
  background: #1f2937;
  box-shadow: none;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 720px;
  background: #1f2228;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.92) 44%, rgba(255, 255, 255, 0.24) 78%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 32px));
  min-height: 720px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  align-items: center;
  gap: 40px;
  padding: 56px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--warm-dark);
  font-size: 0.84rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero h1,
.page-hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.3rem, 5.5vw, 4.7rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 680px;
}

.lead {
  max-width: 680px;
  margin: 20px 0 0;
  color: #3f4652;
  font-size: clamp(1.08rem, 2vw, 1.32rem);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.trust-strip li,
.mini-trust span {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #28313d;
  font-weight: 750;
}

.trust-strip li::before,
.mini-trust span::before {
  content: "";
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(15, 138, 95, 0.1);
}

.quote-panel {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.quote-panel h2 {
  margin: 0;
  font-size: 1.35rem;
}

.quote-panel p {
  margin: 6px 0 18px;
  color: var(--muted);
}

.lead-form {
  display: grid;
  gap: 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.field {
  display: grid;
  gap: 6px;
}

.field.full {
  grid-column: 1 / -1;
}

label {
  color: #29313d;
  font-size: 0.88rem;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid #d9dde5;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  padding: 10px 11px;
}

textarea {
  min-height: 96px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--warm);
  outline: 3px solid rgba(241, 90, 36, 0.16);
}

.consent {
  margin: 0;
  color: var(--muted);
  font-size: 0.79rem;
}

.section {
  padding: 76px 0;
}

.proof-bar {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

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

.proof-grid div {
  min-height: 98px;
  padding: 22px 20px;
  border-right: 1px solid var(--line);
}

.proof-grid div:first-child {
  border-left: 1px solid var(--line);
}

.proof-grid strong,
.proof-grid span {
  display: block;
}

.proof-grid strong {
  font-size: 1.02rem;
}

.proof-grid span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.92rem;
}

.section.alt {
  background: var(--soft);
}

.container {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.75rem, 3vw, 2.7rem);
  line-height: 1.08;
}

.section-heading p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

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

.step,
.service-card,
.faq-item,
.area-panel,
.legal-panel,
.thanks-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.step,
.service-card,
.faq-item {
  padding: 22px;
}

.step-number {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  border-radius: 8px;
  background: #fff0e9;
  color: var(--warm-dark);
  font-weight: 900;
}

.step h3,
.service-card h3,
.faq-item h3 {
  margin: 0 0 8px;
  font-size: 1.12rem;
}

.step p,
.service-card p,
.faq-item p {
  margin: 0;
  color: var(--muted);
}

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

.service-card {
  min-height: 250px;
  display: flex;
  flex-direction: column;
}

.service-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 8px;
  background: #1f2937;
  color: #fff;
}

.service-icon::before,
.service-icon::after {
  content: "";
  display: block;
}

.icon-boiler::before {
  width: 22px;
  height: 26px;
  border: 2px solid #fff;
  border-radius: 4px;
  box-shadow: inset 0 -8px 0 rgba(249, 178, 51, 0.55);
}

.icon-heat-pump::before {
  width: 24px;
  height: 24px;
  border: 2px solid #fff;
  border-radius: 999px;
  box-shadow: 0 0 0 5px rgba(249, 178, 51, 0.28);
}

.icon-ac::before {
  width: 26px;
  height: 16px;
  border: 2px solid #fff;
  border-radius: 4px;
}

.icon-ac::after {
  width: 18px;
  height: 2px;
  margin-top: -13px;
  background: var(--gold);
}

.service-card a {
  margin-top: auto;
  padding-top: 20px;
  color: var(--warm-dark);
  font-weight: 850;
  text-decoration: none;
}

.trust-section {
  background: #fff;
}

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

.score-card,
.approval-grid article,
.testimonial-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.score-card {
  border-top: 4px solid var(--warm);
}

.score {
  display: block;
  margin-bottom: 8px;
  color: var(--warm-dark);
  font-size: 2.35rem;
  line-height: 1;
  font-weight: 900;
}

.score-card strong,
.testimonial-card strong {
  display: block;
}

.score-card p,
.approval-grid p,
.testimonial-card p {
  margin: 8px 0 0;
  color: var(--muted);
}

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

.approval-grid article {
  background: var(--soft);
}

.approval-grid h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.example-tag {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 6px 9px;
  border-radius: 8px;
  background: #fff0e9;
  color: var(--warm-dark);
  font-size: 0.82rem;
  font-weight: 850;
}

.area-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  padding: 28px;
}

.area-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.area-list li {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  font-weight: 750;
}

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

.knowledge-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 22px;
  align-items: start;
}

.knowledge-panel {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.knowledge-panel h3 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}

.knowledge-panel p,
.knowledge-panel li {
  color: var(--muted);
}

.knowledge-panel ul {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding-left: 18px;
}

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

.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.faq-list summary {
  padding: 16px 18px;
  font-weight: 850;
  cursor: pointer;
}

.faq-list details p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--muted);
}

.cta-band {
  padding: 42px;
  border-radius: var(--radius);
  background: #1f2937;
  color: #fff;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}

.cta-band h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1.1;
}

.cta-band p {
  margin: 10px 0 0;
  color: #d9dde5;
}

.page-hero {
  padding: 72px 0 48px;
  background: linear-gradient(180deg, #fff8f4 0%, #fff 100%);
  border-bottom: 1px solid var(--line);
}

.page-hero-grid {
  display: grid;
  grid-template-columns: 1fr 430px;
  gap: 42px;
  align-items: start;
}

.mini-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  margin-top: 22px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 36px;
  align-items: start;
}

.copy-block h2 {
  margin: 0 0 12px;
  font-size: clamp(1.55rem, 2.5vw, 2.25rem);
  line-height: 1.12;
}

.copy-block p,
.copy-block li {
  color: var(--muted);
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

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

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--warm);
}

.side-card {
  position: sticky;
  top: 92px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}

.side-card h3 {
  margin: 0 0 10px;
}

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

.legal-panel,
.thanks-panel {
  max-width: 860px;
  padding: 32px;
}

.legal-panel h2 {
  margin-top: 30px;
}

.legal-panel h2:first-child {
  margin-top: 0;
}

.site-footer {
  padding: 46px 0 30px;
  border-top: 1px solid var(--line);
  background: #111827;
  color: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 28px;
}

.footer-grid p,
.footer-grid a {
  color: #d7dce4;
}

.footer-grid a {
  display: block;
  margin: 8px 0;
  text-decoration: none;
}

.footer-grid h2,
.footer-grid h3 {
  margin: 0 0 10px;
}

.footer-bottom {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #aeb7c4;
  font-size: 0.88rem;
}

.hidden {
  position: absolute;
  left: -9999px;
}

@media (max-width: 980px) {
  .nav-links,
  .nav-actions .button {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links.is-open {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: grid;
    padding: 10px 16px 18px;
    border-bottom: 1px solid var(--line);
    background: #fff;
  }

  .hero,
  .hero-inner {
    min-height: auto;
  }

  .hero::after {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.9) 68%, rgba(255, 255, 255, 0.58) 100%);
  }

  .hero-inner,
  .page-hero-grid,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    padding: 38px 0;
  }

  .quote-panel {
    max-width: 620px;
  }

  .steps,
  .services-grid,
  .proof-grid,
  .trust-dashboard,
  .approval-grid,
  .testimonial-grid,
  .knowledge-grid,
  .area-panel,
  .faq-grid,
  .footer-grid,
  .cta-band {
    grid-template-columns: 1fr;
  }

  .side-card {
    position: static;
  }
}

@media (max-width: 640px) {
  .nav {
    width: min(var(--max), calc(100% - 24px));
  }

  .brand-text {
    font-size: 0.95rem;
  }

  .phone-link {
    font-size: 0.9rem;
  }

  .container,
  .hero-inner {
    width: min(var(--max), calc(100% - 24px));
  }

  .form-grid,
  .trust-strip {
    grid-template-columns: 1fr;
  }

  .quote-panel,
  .area-panel,
  .cta-band,
  .legal-panel,
  .thanks-panel {
    padding: 20px;
  }

  .section {
    padding: 54px 0;
  }
}