:root {
  --default-font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --heading-font: "Lato", system-ui, -apple-system, "Segoe UI", sans-serif;
  --nav-font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --background-color: #ffffff;
  --default-color: #26302d;
  --heading-color: #143c35;
  --accent-color: #d97812;
  --surface-color: #ffffff;
  --contrast-color: #ffffff;
  --nav-color: #f7fbf7;
  --nav-hover-color: #ffb547;
  --nav-mobile-background-color: #ffffff;
  --nav-dropdown-color: #143c35;
  --nav-dropdown-hover-color: #d97812;
  --warm-bg: #fff8ec;
  --warm-line: #f3dfbd;
  --green: #143c35;
  --green-soft: #e7f0ea;
  --orange-soft: #fff1d8;
}

body {
  font-family: var(--default-font);
  color: var(--default-color);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--heading-font);
  font-weight: 800;
  letter-spacing: 0;
}

p {
  line-height: 1.7;
}

.btn {
  border-radius: 8px;
  font-weight: 800;
  min-height: 46px;
  padding: 12px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: normal;
}

.btn-primary,
.hero .btn-primary,
.header .btn-primary,
.ketel-hero .hero-buttons .btn.btn-primary,
.appointment-form .btn-primary {
  --bs-btn-bg: var(--accent-color);
  --bs-btn-border-color: var(--accent-color);
  --bs-btn-hover-bg: #bd640a;
  --bs-btn-hover-border-color: #bd640a;
  --bs-btn-color: #ffffff;
  --bs-btn-hover-color: #ffffff;
  color: #ffffff;
  background: var(--accent-color);
  border-color: var(--accent-color);
}

.btn-outline,
.hero .btn-outline,
.ketel-hero .hero-buttons .btn.btn-outline {
  color: #ffffff;
  border: 2px solid rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.08);
}

.btn-outline:hover,
.hero .btn-outline:hover {
  color: var(--green);
  background: #ffffff;
  border-color: #ffffff;
}

.section {
  padding: 76px 0;
  scroll-margin-top: 132px;
}

.light-background {
  --background-color: var(--warm-bg);
  --surface-color: #ffffff;
}

.eyebrow,
.section-title .subtitle {
  display: inline-flex;
  color: var(--accent-color);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
  margin-bottom: 12px;
}

.section-title {
  padding-bottom: 36px;
}

.section-title h2 {
  color: var(--green);
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 12px;
}

.section-title p {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.ketel-header {
  --background-color: rgba(255, 255, 255, 0.96);
  --default-color: var(--green);
  --heading-color: var(--green);
  background: var(--background-color);
  box-shadow: 0 10px 30px rgba(20, 60, 53, 0.08);
  padding: 12px 0 0;
}

.scrolled .ketel-header {
  --background-color: rgba(255, 255, 255, 0.98);
  background: var(--background-color);
}

.ketel-header .top-row {
  padding-bottom: 12px;
}

.ketel-header .logo {
  gap: 10px;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent-color), #f0a72e);
  box-shadow: 0 8px 20px rgba(217, 120, 18, 0.28);
  flex: 0 0 42px;
}

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

.ketel-header .top-row .logo .sitename,
.footer-brand span:last-child {
  color: var(--green);
  font-family: var(--heading-font);
  font-size: 1.28rem;
  font-weight: 900;
  line-height: 1;
}

.brand-sub {
  color: #5b6c66;
  font-size: 0.78rem;
  font-weight: 700;
}

.header-actions {
  gap: 12px;
}

.phone-link {
  color: var(--green);
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.phone-link:hover {
  color: var(--accent-color);
}

.header-cta {
  min-height: 42px;
  padding: 10px 16px;
}

.ketel-header .nav-wrap {
  background: var(--green);
  margin-top: 0;
}

.navmenu a,
.navmenu a:focus {
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.92rem;
  font-weight: 800;
  padding: 14px 15px;
}

.navmenu li:hover > a,
.navmenu .active,
.navmenu .active:focus {
  color: var(--nav-hover-color);
}

.navmenu .nav-appointment {
  color: #ffffff;
}

.header .mobile-nav-toggle {
  color: var(--green);
  top: 22px;
  right: 18px;
}

.mobile-nav-active .ketel-header .mobile-nav-toggle {
  color: #ffffff;
}

.ketel-hero {
  position: relative;
  min-height: 760px;
  padding: 180px 0 96px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(20, 60, 53, 0.96), rgba(20, 60, 53, 0.74) 48%, rgba(20, 60, 53, 0.52)),
    url("/assets/img/ketel-hero.png") center / cover no-repeat;
}

.ketel-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 38%;
  background: linear-gradient(0deg, rgba(20, 60, 53, 0.28), rgba(20, 60, 53, 0));
  pointer-events: none;
}

.ketel-hero .hero-content {
  position: relative;
  inset: auto;
  width: 100%;
  z-index: 2;
}

.ketel-hero h1 {
  font-size: clamp(2.45rem, 5vw, 4.7rem);
  line-height: 0.96;
  max-width: 820px;
  margin-bottom: 22px;
  overflow-wrap: normal;
  hyphens: manual;
}

.hero-title-word,
.hero-title-rest {
  display: block;
}

.ketel-hero p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.12rem;
  max-width: 720px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.trust-row span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.88rem;
  font-weight: 800;
}

.hero-price {
  display: grid;
  gap: 4px;
  max-width: 460px;
  margin: 26px 0 28px;
  padding: 18px;
  background: #ffffff;
  color: var(--green);
  border-radius: 8px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
}

.hero-price strong {
  color: var(--accent-color);
  font-size: 1.48rem;
  font-family: var(--heading-font);
}

.hero-price span {
  color: #5a625f;
  font-size: 0.92rem;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.boiler-card,
.calendar-visual,
.not-found-card {
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--green);
  padding: 26px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
}

.boiler-card-top,
.calendar-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  margin-bottom: 18px;
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: #22a56a;
  box-shadow: 0 0 0 7px rgba(34, 165, 106, 0.14);
}

.boiler-device {
  border: 2px solid var(--green-soft);
  border-radius: 8px;
  padding: 22px;
  background: linear-gradient(180deg, #ffffff, #f7fbf8);
}

.boiler-screen {
  height: 92px;
  border-radius: 8px;
  background: var(--green);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-weight: 900;
  font-size: 1.2rem;
}

.boiler-screen i {
  color: var(--nav-hover-color);
  font-size: 1.7rem;
}

.boiler-lines {
  display: grid;
  gap: 10px;
  margin: 20px 0;
}

.boiler-lines span {
  height: 10px;
  border-radius: 8px;
  background: #e2ebe6;
}

.boiler-lines span:nth-child(2) {
  width: 76%;
}

.boiler-lines span:nth-child(3) {
  width: 52%;
}

.boiler-meter {
  display: flex;
  align-items: center;
  gap: 12px;
  border-radius: 8px;
  padding: 14px;
  background: var(--orange-soft);
}

.boiler-meter i {
  color: var(--accent-color);
  font-size: 1.6rem;
}

.boiler-meter small {
  display: block;
  color: #65716c;
}

.hero-checklist {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.hero-checklist span,
.check-list li {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.hero-checklist i,
.check-list li::before {
  color: #22a56a;
}

.about .lead {
  color: #31413c;
  font-weight: 500;
}

.feature-card,
.signal-card,
.benefit-card,
.sidebar-card,
.step-card,
.local-feature,
.quote-card,
.price-panel,
.reminder-card,
.cta-panel,
.appointment-form,
.form-message {
  border-radius: 8px;
  background: var(--surface-color);
  border: 1px solid rgba(20, 60, 53, 0.1);
  box-shadow: 0 12px 36px rgba(20, 60, 53, 0.08);
}

.feature-card {
  min-height: 188px;
  padding: 24px;
}

.feature-card .icon-box,
.benefit-icon,
.reminder-icon {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  background: var(--orange-soft);
  margin-bottom: 18px;
  font-size: 1.35rem;
}

.feature-card h3 {
  font-size: 1.08rem;
  margin: 0;
}

.ketel-image {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 20px 55px rgba(20, 60, 53, 0.16);
}

.ketel-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
}

.quote-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 20px;
  margin-top: 24px;
  background: var(--green);
  color: #ffffff;
}

.quote-card i {
  color: var(--nav-hover-color);
  font-size: 1.45rem;
}

.quote-card p {
  margin: 0;
  color: #ffffff;
  font-weight: 700;
}

.signal-card {
  height: 100%;
  padding: 24px 18px;
  text-align: center;
}

.signal-card i {
  color: var(--accent-color);
  font-size: 2rem;
  margin-bottom: 12px;
}

.signal-card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.signal-card p {
  margin: 0;
  color: #5a6560;
  font-size: 0.94rem;
}

.region-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.region-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 11px 14px;
  border-radius: 8px;
  color: var(--green);
  background: var(--green-soft);
  font-weight: 800;
  border: 1px solid rgba(20, 60, 53, 0.08);
}

.region-badge:hover {
  color: #ffffff;
  background: var(--green);
}

.price-panel,
.reminder-card,
.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 30px;
}

.price-panel h2,
.reminder-card h2,
.cta-panel h2 {
  margin-bottom: 10px;
}

.price-panel .small {
  max-width: 820px;
  color: #5c6863;
}

.reminder-card {
  background: linear-gradient(135deg, #ffffff, #fff7e8);
}

.reminder-card .btn,
.cta-panel .btn {
  flex: 0 0 auto;
}

.faq .faq-container .faq-item {
  border-radius: 8px;
  border: 1px solid rgba(20, 60, 53, 0.1);
  box-shadow: 0 10px 28px rgba(20, 60, 53, 0.06);
  margin-bottom: 12px;
  padding: 0;
  position: relative;
  overflow: hidden;
}

.faq .faq-container .faq-item h3 {
  color: var(--green);
  font-size: 1.04rem;
  line-height: 1.35;
  margin: 0;
  padding: 18px 54px 18px 20px;
  cursor: pointer;
}

.faq .faq-container .faq-active {
  background: #ffffff;
}

.faq .faq-container .faq-item .faq-content {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  height: 0 !important;
}

.faq .faq-container .faq-item.faq-active .faq-content {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  height: auto !important;
  padding: 0 20px 18px;
}

.faq .faq-container .faq-item .faq-content p {
  margin: 0;
  color: #52615c;
  line-height: 1.7;
}

.faq .faq-container .faq-item .faq-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  color: var(--accent-color);
  transition: transform 0.2s ease;
}

.faq .faq-container .faq-item.faq-active .faq-toggle {
  transform: rotate(90deg);
}

.ketel-page-title {
  padding: 190px 0 72px;
  background:
    linear-gradient(90deg, rgba(20, 60, 53, 0.96), rgba(20, 60, 53, 0.82)),
    url("/assets/img/ketel-hero.png") center / cover no-repeat;
}

.ketel-page-title h1 {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  max-width: 820px;
}

.ketel-page-title p {
  max-width: 760px;
}

.breadcrumbs a,
.breadcrumbs .current {
  color: rgba(255, 255, 255, 0.86);
}

.service-hero h2 {
  color: var(--green);
  font-size: clamp(2rem, 4vw, 3.15rem);
}

.service-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.service-meta span {
  border-radius: 8px;
  padding: 8px 10px;
  font-weight: 900;
  font-size: 0.86rem;
}

.service-category {
  color: var(--accent-color);
  background: var(--orange-soft);
}

.reading-time {
  color: var(--green);
  background: var(--green-soft);
}

.service-description {
  font-size: 1.14rem;
  color: #4c5a55;
}

.service-narrative h3 {
  color: var(--green);
  margin-top: 34px;
}

.benefits-grid,
.local-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 30px 0;
}

.benefit-card,
.local-feature {
  padding: 22px;
}

.benefit-card h4,
.local-feature h3 {
  font-size: 1.05rem;
}

.benefit-card p,
.local-feature p {
  color: #60706a;
  margin: 0;
}

.local-feature i {
  color: var(--accent-color);
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.service-sidebar,
.appointment-aside {
  position: sticky;
  top: 150px;
  display: grid;
  gap: 16px;
}

.sidebar-card {
  padding: 24px;
}

.price-sidebar strong {
  display: block;
  color: var(--accent-color);
  font-family: var(--heading-font);
  font-size: 2rem;
  line-height: 1.05;
  margin-bottom: 12px;
}

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

.check-list li::before {
  content: "\F26A";
  font-family: "bootstrap-icons";
  flex: 0 0 auto;
}

.link-list a,
.text-link {
  color: var(--green);
  font-weight: 800;
}

.link-list a:hover,
.text-link:hover {
  color: var(--accent-color);
}

.step-card {
  height: 100%;
  padding: 24px;
}

.step-card span {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  color: #ffffff;
  background: var(--green);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 1.18rem;
}

.cta-panel {
  color: #ffffff;
  background: var(--green);
  border: 0;
}

.cta-panel h2,
.cta-panel p {
  color: #ffffff;
}

.cta-panel .btn-outline {
  border-color: rgba(255, 255, 255, 0.72);
}

.calendar-visual {
  box-shadow: 0 18px 55px rgba(20, 60, 53, 0.14);
}

.calendar-header {
  background: var(--green);
  color: #ffffff;
  border-radius: 8px;
  padding: 16px;
}

.calendar-header i {
  color: var(--nav-hover-color);
}

.calendar-body strong {
  font-family: var(--heading-font);
  color: var(--green);
  font-size: 2rem;
}

.calendar-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-top: 1px solid var(--green-soft);
  font-weight: 800;
}

.calendar-row i {
  color: #22a56a;
}

.appointment-form {
  padding: 28px;
}

.appointment-form label {
  color: var(--green);
  display: block;
  font-weight: 900;
  margin-bottom: 8px;
}

.appointment-form input,
.appointment-form select,
.appointment-form textarea {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(20, 60, 53, 0.18);
  border-radius: 8px;
  padding: 12px 13px;
  color: var(--default-color);
  background: #ffffff;
}

.appointment-form input:focus,
.appointment-form select:focus,
.appointment-form textarea:focus {
  outline: 3px solid rgba(217, 120, 18, 0.18);
  border-color: var(--accent-color);
}

.appointment-form small {
  color: #64736e;
  display: block;
  margin-top: 6px;
}

.consent-row {
  display: flex !important;
  align-items: flex-start;
  gap: 10px;
  padding: 14px;
  border-radius: 8px;
  background: var(--green-soft);
}

.consent-row input {
  width: 18px;
  min-height: 18px;
  margin-top: 3px;
  flex: 0 0 18px;
}

.form-message {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px;
  margin-bottom: 18px;
  font-weight: 800;
}

.form-message.success {
  color: #0f6b42;
  background: #e7f7ee;
}

.form-message.error {
  color: #9b2c22;
  background: #fff0eb;
}

.mini-region-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mini-region-list span {
  border-radius: 8px;
  background: var(--green-soft);
  padding: 7px 9px;
  font-weight: 800;
  font-size: 0.88rem;
}

.phone-large {
  color: var(--green);
  font-size: 1.2rem;
  font-weight: 900;
}

.not-found-section {
  padding-top: 190px;
  min-height: 76vh;
  background: var(--warm-bg);
}

.not-found-card {
  max-width: 720px;
  box-shadow: 0 18px 55px rgba(20, 60, 53, 0.14);
}

.ketel-footer {
  background: #102f2a;
  color: rgba(255, 255, 255, 0.78);
  padding: 56px 0 0;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.ketel-footer .footer-brand span:last-child,
.ketel-footer h4 {
  color: #ffffff;
}

.ketel-footer a,
.ketel-footer .footer-links ul li a,
.ketel-footer .footer-links ul a {
  color: rgba(255, 255, 255, 0.84);
}

.ketel-footer a:hover {
  color: var(--nav-hover-color);
}

.footer-contact {
  display: grid;
  gap: 8px;
}

.ketel-footer .footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 42px;
  padding: 18px 0;
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.92rem;
}

.mobile-sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 996;
  display: flex;
  gap: 8px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 -12px 30px rgba(20, 60, 53, 0.12);
}

.mobile-sticky-cta .btn:first-child {
  flex: 1 1 auto;
}

.mobile-sticky-cta .btn-outline {
  color: var(--green);
  border-color: var(--green);
  min-width: 54px;
}

@media (max-width: 1199px) {
  .ketel-header .social-links,
  .header-actions {
    padding-right: 48px;
  }

  .header-cta,
  .phone-link span {
    display: none;
  }

  .ketel-header .nav-wrap {
    background: transparent;
  }

  .navmenu a,
  .navmenu a:focus {
    color: var(--green);
  }

  .navmenu .active,
  .navmenu .active:focus {
    color: var(--accent-color);
  }

  .navmenu .nav-appointment,
  .navmenu .nav-appointment:focus {
    color: var(--green);
  }

  .navmenu .nav-appointment.active {
    color: var(--accent-color);
  }
}

@media (max-width: 991px) {
  body {
    padding-bottom: 76px;
  }

  .section {
    padding: 58px 0;
    scroll-margin-top: 96px;
  }

  .ketel-hero {
    min-height: auto;
    padding: 136px 0 58px;
  }

  .ketel-page-title {
    padding: 136px 0 56px;
  }

  .boiler-card {
    max-width: 520px;
    margin: 0 auto;
  }

  .price-panel,
  .reminder-card,
  .cta-panel {
    display: grid;
    align-items: stretch;
  }

  .price-panel .btn,
  .reminder-card .btn,
  .cta-panel .btn {
    width: 100%;
  }

  .service-sidebar,
  .appointment-aside {
    position: static;
  }
}

@media (max-width: 767px) {
  .ketel-header .top-row .logo .sitename {
    font-size: 1.05rem;
  }

  .brand-sub {
    font-size: 0.68rem;
  }

  .logo-mark {
    width: 38px;
    height: 38px;
    flex-basis: 38px;
  }

  .ketel-hero h1 {
    font-size: clamp(2.05rem, 9vw, 2.45rem);
    line-height: 1.03;
    max-width: 100%;
    overflow-wrap: normal;
  }

  .ketel-hero p {
    font-size: 1rem;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .trust-row span {
    width: 100%;
  }

  .benefits-grid,
  .local-feature-grid {
    grid-template-columns: 1fr;
  }

  .appointment-form,
  .boiler-card,
  .price-panel,
  .reminder-card,
  .cta-panel,
  .sidebar-card {
    padding: 20px;
  }

  .region-badge {
    width: 100%;
  }
}