* {
  font-family: sans-serif;
}
.hvac-hero-section {
  padding: 60px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #19479e 0%, #19479e 100%);
}

.pheadt {
  padding-top: 160px !important;
}

.hvac-hero-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.05)" points="0,0 1000,300 1000,1000 0,700"/></svg>');
  background-size: cover;
}

.hvac-hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.bgbtw .hvac-feature-card {
  background: none;
  box-shadow: unset;
  border: 1px solid black !important;
  border-radius: unset;
}

.bgbtw .hvac-feature-card .hvac-feature-title {
  color: #19479e !important;
  padding: 0 !important;
  border-left: none !important;
  font-size: 24px;
}

.blog-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  padding: 0;
  list-style: disc;
}

.blog-list li {
  /* background-color: #f5f5f5;  */
  /* padding: 15px; */
  border-radius: 8px;
  /* text-align: center; */
  color: black;
}

.bgbtw .hvac-feature-card .hvac-feature-desc,
.bgbtw .hvac-feature-card a {
  color: black !important;
}

.page-header {
  padding-top: 30px;
  padding-bottom: 30px;
}

.hvac-hero-text h1 {
  font-size: clamp(2.5rem, 5vw, 3.1rem);
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hvac-hero-text h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 500;
  color: white;
  margin-bottom: 30px;
}

.hvac-hero-text p {
  font-size: 1.1rem;
  color: white;
  margin-bottom: 40px;
}

.hvac-section-bold {
  font-weight: 600;
  font-size: 15px;
  color: #000;
  margin-bottom: 0;
}

/* Modern Form */
.hvac-modern-form {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 24px;
  padding: 18px;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.hvac-form-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 30px;
  text-align: center;
}

.hvac-form-group {
  margin-bottom: 24px;
}

.hvac-form-control {
  width: 100%;
  padding: 10px 20px;
  border: 2px solid #e1e5e9;
  border-radius: 12px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background: white;
}

.hvac-form-control:focus {
  outline: none;
  border-color: #19479e;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  transform: translateY(-2px);
}

.hvac-form-control:hover {
  border-color: #19479e;
}

.hvac-btn-primary {
  background: #19479e;
  color: white;
  border: none;
  padding: 16px 32px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hvac-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.hvac-btn-primary:active {
  transform: translateY(0);
}

.qc-question-text {
  margin-bottom: 0 !important;
}

/* Content Sections */
.hvac-content-section {
  padding: 25px 0;
}

.hvac-section-title {
  text-align: center;
  font-size: 24px;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 20px;
  position: relative;
}

.hvac-section-subtitle {
  font-size: 15px;
  font-weight: 600;
  color: #000;
  margin-bottom: 20px;
}

.hvac-section-text {
  color: black;
  line-height: 1.7;
  margin-bottom: 30px;
}

.hvac-feature-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 8px;
  margin-top: 40px;
  justify-content: center;
}

.hvac-feature-card {
  background: white;
  border-radius: 16px;
  padding: 30px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  border: 1px solid #e2e8f0;
}

.hvac-feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.hvac-feature-icon {
  font-size: 2.5rem;
  color: #19479e;
  margin-bottom: 20px;
}

.hvac-feature-title {
  font-size: 16px;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 10px;
}

.hvac-feature-desc {
  /* color: #64748b; */
  line-height: 1.6;
}

.hvac-feature-descs {
  /* color: #64748b; */
  line-height: 1.6;
  font-size: 18px;
  /* font-weight: 600; */
}

.page-header .page-title {
  font-size: 1.6rem;
  line-height: 2rem;
}

/* Section Backgrounds */
.hvac-why-choose {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
}

.hvac-capabilities {
  background: white;
}

.hvac-project-execution {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
}

.hvac-quality-safety {
  background: white;
}

.hvac-cost-optimization {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
}

.hvac-performance-optimization {
  background: white;
}

.hvac-fire-safe {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
}

.hvac-documentation {
  background: white;
}

.hvac-after-sales {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
}

.hvac-future-ready {
  background: white;
}

.hvac-application-driven {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
}

/* Project Portfolio Styles */
.hvac-portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.hvac-portfolio-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.hvac-portfolio-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.hvac-portfolio-content {
  padding: 25px;
}

.panel-body * {
  color: black;
}

.hvac-portfolio-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 10px;
}

.hvac-portfolio-desc {
  color: #64748b;
  line-height: 1.6;
  margin-bottom: 15px;
}

.hvac-portfolio-tag {
  display: inline-block;
  background: #e2e8f0;
  color: black;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* Benefits List */
.hvac-benefits-list {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}

.hvac-benefits-list li {
  padding: 10px 0;
  padding-left: 30px;
  position: relative;
  color: black;
}

.hvac-benefits-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #10b981;
  font-weight: bold;
}

/* CTA Button */
.hvac-cta-button {
  display: inline-block;
  background: #19479e;
  color: white;
  padding: 12px 30px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  margin-top: 20px;
  font-size: 14px;
}

.hvac-cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
  color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hvac-hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .qc-question-text {
    font-size: 16px !important;
    max-width: 320px;
  }

  .qc-faq-question {
    padding: 15px 10px !important;
  }

  .box-rel {
    position: relative !important;
    top: unset !important;
    height: auto !important;
    overflow-y: unset !important;
    background: #fff !important;
    padding-top: 0 !important;
  }

  .qc-question-wrapper {
    gap: 0px !important;
    padding: 22px 6px !important;
  }

  .hvac-modern-form {
    padding: 30px 20px;
  }

  .hvac-section-title {
    font-size: 2rem;
  }

  .hvac-portfolio-grid {
    grid-template-columns: 1fr;
  }
}

/* Slider styles */
.slider-arrow {
  position: relative;
}

.hvac-slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.blog-card {
  scroll-snap-align: start;
  flex: 0 0 auto;
  margin-right: 15px;
}

.blog-img {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  background: #f8f9fa;
  border-radius: 8px;
  padding: 10px;
}

.blog-img p {
  margin: 0;
  font-size: 14px;
  color: #333;
}

/* Hide scrollbar */
.hvac-slider::-webkit-scrollbar {
  display: none;
}

.hvac-slider {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* New HVAC Project Slider Styles */
.hvac-project-slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  gap: 15px;
  padding: 10px 0;
}

.hvac-project-card {
  scroll-snap-align: start;
  flex: 0 0 auto;
  width: 200px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8f9fa;
  border-radius: 8px;
  padding: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hvac-project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.hvac-project-img {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  height: 100%;
  width: 100%;
  padding-bottom: 0;
}

.hvac-project-img img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0 !important;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hvac-project-img p {
  margin: 0;
  font-size: 13px;
  color: #000;
  text-align: center;
  width: 100%;
  word-wrap: break-word;
  font-weight: 500;
  line-height: 1.4;
}

/* Hide scrollbar for project sliders */
.hvac-project-slider::-webkit-scrollbar {
  display: none;
}

.hvac-project-slider {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Auto-scroll pause on hover */
.hvac-project-slider:hover {
  animation-play-state: paused;
}

/* Application section styles */
.hvac-application-section {
  padding: 20px 0;
  margin-bottom: 20px;
  border-bottom: 1px solid #e0e0e0;
}

.hvac-application-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.hvac-expertise-title {
  color: #1a202c;
  border-left: 4px solid #19479e;
  padding-left: 15px;
  margin-bottom: 15px;
  font-size: 18px;
  font-weight: 600;
}

/* Slider specific styles for different applications */
.residential-slider,
.commercial-slider,
.healthcare-slider,
.hospitality-slider,
.education-slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  gap: 15px;
  padding: 10px 0;
  justify-content: center;
}

.residential-slider .hvac-project-card,
.commercial-slider .hvac-project-card,
.healthcare-slider .hvac-project-card,
.hospitality-slider .hvac-project-card,
.education-slider .hvac-project-card {
  scroll-snap-align: start;
  flex: 0 0 auto;
  width: 200px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8f9fa;
  border-radius: 8px;
  padding: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.blog-card {
  margin: 0px 6px !important;
  padding: 0 0px 0px !important;
  /* width: 300px !important; */
  height: fit-content;
  background: #f8f9fa;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.slick-slider .slick-list .slick-slide > div,
.slick-slider .slick-list .slick-slide > ul {
  margin: unset !important;
}

.blog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.residential-slider .hvac-project-card:hover,
.commercial-slider .hvac-project-card:hover,
.healthcare-slider .hvac-project-card:hover,
.hospitality-slider .hvac-project-card:hover,
.education-slider .hvac-project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

/* Improved spacing for expertise sections */
.hvac-content-section .hvac-section-title {
  margin-top: 30px;
  margin-bottom: 15px;
}

.hvac-content-section .hvac-section-bold {
  margin-top: 10px;
  margin-bottom: 10px;
}

.hvac-content-section .hvac-section-text {
  margin-bottom: 20px;
}

.hvac-content-section .hvac-feature-grid {
  margin-top: 20px;
  /* margin-bottom: 30px; */
}

.hvac-content-section .hvac-feature-card {
  margin-bottom: 15px;
}

/* Reduce white space in expertise lists */
.hvac-benefits-list {
  margin-top: 10px;
  margin-bottom: 10px;
}

.hvac-benefits-list li {
  padding: 5px 0;
  padding-left: 30px;
}

.hvac-content-section .hvac-feature-title {
  margin-top: 0;
  margin-bottom: 15px;
  font-size: 18px;
  font-weight: 600;
}

/* Remove extra padding from hvac-content-section when nested */
.hvac-content-section .hvac-content-section {
  padding: 0;
}

/* Adjust spacing for nested sections */
.hvac-content-section .hvac-content-section .hvac-section-title {
  margin-top: 0;
}

/* Expertise section styling */
.hvac-content-section .row .hvac-feature-title {
  color: #1a202c;
  border-left: 4px solid #19479e;
  padding-left: 15px;
  margin-bottom: 15px;
}

.hvac-content-section .row .hvac-benefits-list {
  column-count: 1;
  column-gap: 30px;
}

@media (min-width: 768px) {
  .hvac-content-section .row .hvac-benefits-list {
    column-count: 2;
  }
}

/* Accordion styling for 16 pillars */
#hvacPillarsAccordion .panel {
  margin-bottom: 10px;
  border: 1px solid #e0e0e0;
  border-radius: 5px;
  overflow: hidden;
}

#hvacPillarsAccordion .panel-heading {
  background-color: #f8f9fa;
  padding: 0;
}

#hvacPillarsAccordion .panel-title {
  margin: 0;
}

#hvacPillarsAccordion .panel-title a {
  display: block;
  padding: 15px 20px;
  color: #19479e;
  font-weight: 600;
  text-decoration: none;
  position: relative;
}

#hvacPillarsAccordion .panel-title a:hover {
  background-color: #e9ecef;
}

#hvacPillarsAccordion .panel-title a:before {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
}

#hvacPillarsAccordion .panel-title a.collapsed:before {
  content: "+";
}

#hvacPillarsAccordion .panel-title a:not(.collapsed):before {
  content: "-";
}

#hvacPillarsAccordion .panel-collapse {
  border-top: 1px solid #e0e0e0;
}

#hvacPillarsAccordion .panel-body {
  padding: 20px;
}

#hvacPillarsAccordion .panel-body h5 {
  color: #19479e;
  margin-top: 20px;
  margin-bottom: 10px;
  font-weight: 600;
}

#hvacPillarsAccordion .panel-body p {
  margin-bottom: 15px;
  line-height: 1.6;
}

#hvacPillarsAccordion .panel-body ul,
#hvacPillarsAccordion .panel-body ol {
  margin-bottom: 15px;
  padding-left: 20px;
}

#hvacPillarsAccordion .panel-body li {
  margin-bottom: 8px;
  line-height: 1.5;
}

.qc-feature-card {
  background: #808285;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  padding: 40px 20px;
  /* padding-bottom: 0; */
  border: 1px solid #808285;
  min-height: auto;
  border-radius: 30px;
  justify-content: flex-start;
}

.qc-feature-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  padding: 0;
  margin: 0;
}

@media (max-width: 1450px) {
  .qc-feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .qc-feature-card {
    min-height: auto;
  }
}

@media (max-width: 1200px) {
  .qc-feature-card {
    min-height: fit-content;
  }
}

/* Mobile (<= 576px) → 2 cards */
@media (max-width: 576px) {
  .qc-feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.qc-feature-icon {
  font-size: 3rem;
  /* margin-bottom: auto; */
  transition: transform 0.5s ease;
  align-self: flex-start;
}

.qc-feature-title {
  color: #ffffff;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0;
  transition: all 0.5s ease;
  align-self: flex-start;
  margin-top: 20px;
  /* width: 200px; */
}

.qc-feature-desc {
  color: #ffffff;
  font-size: 1rem;
  line-height: 1.8;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: all 0.5s ease;
  margin-top: 0;
  align-self: flex-start;
}

.qc-expand-btn {
  position: absolute;
  bottom: 30px;
  right: 30px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #19479e;
  border: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 10;
  margin-top: auto;
}

.qc-expand-btn:hover {
  transform: scale(1.1);
  background: #0052cc;
}

/* Desktop Hover Effect */
@media (min-width: 769px) {
  .qc-feature-card:hover {
    background: #19479e;
    z-index: 5;
  }

  .qc-feature-card:hover .qc-feature-desc {
    opacity: 1;
    max-height: 500px;
    margin-top: 20px;
  }

  .qc-feature-card:hover .qc-expand-btn {
    transform: rotate(45deg);
  }

  .qc-feature-card:hover .qc-feature-icon {
    transform: translateY(-10px);
  }
}

/* Mobile Styles */
@media (max-width: 768px) {
  .qc-section-title {
    font-size: 1.8rem;
    margin-bottom: 40px;
  }

  .qt-pie-wrapper {
    margin-top: -56px !important;
    margin-bottom: -86px !important;
  }

  .hvac-hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .qc-feature-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    height: auto;
  }

  .qc-feature-card {
    background: #19479e;
    padding: 30px;
    height: auto;
    cursor: default;
    justify-content: flex-start;
  }

  .qc-feature-card:nth-child(3) {
    grid-column: span 1;
  }

  .qc-feature-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    align-self: flex-start;
  }

  .qc-feature-title {
    font-size: 1.25rem;
    margin-bottom: 15px;
    align-self: flex-start;
    margin-top: 0;
    width: auto;
  }

  .qc-feature-grid .qc-feature-card:last-child:nth-child(odd) {
    flex: 0 0 100%;
  }

  .qc-feature-desc {
    opacity: 1;
    max-height: none;
    font-size: 0.95rem;
    margin-top: 0;
    align-self: flex-start;
  }

  .qc-expand-btn {
    display: none;
  }
}

@media (max-width: 480px) {
  .qc-content-section {
    padding: 60px 15px;
  }

  .qc-section-title {
    font-size: 1.5rem;
  }

  .qc-feature-card {
    padding: 25px 20px;
  }

  .qc-feature-title {
    font-size: 1.1rem;
  }

  .qc-feature-desc {
    font-size: 0.9rem;
  }
}

.hvac-section-title.big {
  font-size: 32px !important;
  margin-bottom: 25px;
  font-weight: 400 !important;
}

.hvac-section-title.big span {
  color: #2e4190;
}

/* Tab Layout Styles */
.hvac-tab-container {
  margin: 20px 0 0;
}

.hvac-tab-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  /* border-bottom: 2px solid #e0e0e0; */
  margin-bottom: 20px;
}

.hvac-tab-link {
  background-color: #fff;
  border: 1px solid #19479e;
  outline: none;
  cursor: pointer;
  padding: 15px 25px;
  transition: 0.3s;
  letter-spacing: 1px;
  font-size: 16px;
  font-weight: 600;
  color: black;
  /* border-bottom: 3px solid transparent; */
  /* border-radius: 8px 8px 0 0; */
  margin: 0 5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hvac-tab-link:hover {
  background-color: #e9ecef;
  color: #495057;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.hvac-tab-link.active {
  background-color: #19479e;
  color: #fff;
  border-bottom: 3px solid #19479e;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.hvac-tab-content {
  display: none;
  /* padding: 20px 0; */
  animation: fadeEffect 0.5s;
}

.hvac-tab-content.active {
  display: block;
}

@keyframes fadeEffect {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.box-rel {
  position: sticky;
  top: 200px;
  height: 640px;
  overflow-y: auto;
  background: #fff;
  transition: padding-top 0.1s linear;
  padding-top: 0;
  scroll-behavior: smooth;
}

.box-rel.scrolled {
  padding-top: 130px;
}

.box-rel.scrolled {
  padding-top: 170px;
}

.box-abs .login-btn {
  color: #000;
  padding: 0px 7px;
  border: 1px solid black;
  font-size: 14px;
  width: 175px;
  font-weight: 500;
  height: 60px;
  border-radius: unset;
}

/* Existing styles */

/* New responsive styles for qc-feature-grid with hidden scrollbar and arrows */
@media (max-width: 1449px) {
  .cardgrid-container {
    position: relative;
  }

  .qc-feature-grid {
    display: flex;
    overflow-x: hidden;
    /* Hide scrollbar */
    gap: 20px;
    padding: 10px 0;
    scroll-behavior: smooth;
  }

  .scroll-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
  }

  .scroll-arrow.left {
    left: 10px;
  }

  .scroll-arrow.right {
    right: 10px;
  }

  .scroll-arrow:hover {
    background: rgba(0, 0, 0, 0.7);
  }

  .qc-feature-card {
    min-width: 320px;
    /* flex-shrink: 0; */
  }
}

/* Desktop grid layout for screens >= 1450px */
@media (min-width: 1450px) {
  .qc-feature-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
  }

  .scroll-arrow {
    display: none;
  }

  .qc-feature-card {
    min-width: unset;
  }
}

/* Mobile layout */
@media (max-width: 768px) {
  .hvac-hero-section {
    padding: 70px 0;
    margin-bottom: 30px;
  }
  .hvac-hero-section .col-md-8 {
    padding: 0;
  }

  .hvac-tab-nav {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    overflow-y: auto;
    max-height: 400px;
    flex-wrap: unset;
    border-bottom: unset;
  }

  .qc-title {
    font-size: 28px !important;
    line-height: 40px;
  }

  .hvac-hero-text h1 {
    font-size: 32px;
  }

  .hvac-hero-text p {
    font-size: 1.1rem;
    color: white;
    margin-bottom: 10px;
  }

  .qc-feature-grid {
    display: flex;
    flex-direction: row;
    overflow-x: hidden;
    gap: 20px;
    flex-wrap: wrap;
  }

  .qc-feature-grid .qc-feature-card {
    flex: 0 0 calc(50% - 10px);
    box-sizing: border-box;
  }

  .scroll-arrow {
    display: none;
  }

  .qc-feature-card {
    min-width: unset;
    width: 100%;
  }

  /* Tab layout responsive adjustments */
  .hvac-tab-nav {
    flex-direction: row;
    align-items: center;
    border-bottom: none;
    white-space: nowrap;
    gap: 10px;
    justify-content: unset;
    /* border-right: 2px solid #e0e0e0; */
    /* border-bottom: 2px solid #e0e0e0; */
  }

  .hvac-tab-content .hvac-application-section {
    padding-left: 10px;
    padding-right: 10px;
  }

  .qc-toggle-icon::after {
    width: 3px !important;
    height: 10px !important;
  }
  .qc-toggle-icon::before {
    width: 10px !important;
    height: 3px !important;
  }
  .qc-toggle-icon {
    width: 10px !important;
    height: 10px !important;
  }
  .qc-faq-item.qc-active .qc-faq-answer {
    max-height: fit-content;
    padding: 25px 15px 30px 25px !important;
  }

  .hvac-tab-link {
    /* border-bottom: 1px solid #e0e0e0; */
    /* border-right: 3px solid transparent; */
    text-align: left;
    width: 80%;
    margin: 5px 0;
    border-radius: 8px 0 0 8px;
  }

  .hvac-tab-link.active {
    /* border-bottom: 1px solid #e0e0e0; */
    border-right: 3px solid #19479e;
    border-bottom: 1px solid #19479e;
    background-color: #19479e;
    color: #fff;
  }

  /* Responsive styles for HVAC project sliders */
  .hvac-project-card {
    width: 150px;
    height: 80px;
  }

  .hvac-project-img p {
    font-size: 12px;
  }

  .hvac-application-section {
    padding: 15px 0;
    margin-bottom: 15px;
  }

  .hvac-expertise-title {
    font-size: 16px;
    padding-left: 10px;
  }
}

@media (max-width: 480px) {
  .hvac-project-card {
    width: 130px;
    height: 70px;
  }

  .hvac-project-img p {
    font-size: 11px;
  }

  .residential-slider,
  .commercial-slider,
  .healthcare-slider,
  .hospitality-slider,
  .education-slider {
    gap: 10px;
  }
}

.hvac-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.hvac-feature-title {
  flex: 1;
  margin-right: 10px;
}

.hvac-icon {
  font-size: 1.5em;
  margin-left: 10px;
}

.hvac-feature-desc {
  margin: 10px 0;
}

.sv-details {
  display: block;
  text-align: right;
}

.qc-faq-list {
  /* background: white; */
  /* border-radius: 12px; */
  overflow: hidden;
  /* box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3); */
}

.qc-faq-item {
  border-bottom: 1px solid #e5e5e5;
}

.qc-faq-item:last-child {
  border-bottom: none;
}

.qc-faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 35px;
  cursor: pointer;
  background: white;
  transition: background 0.3s ease;
}

.qc-faq-question:hover {
  background: #f8f9fa;
}

.qc-question-wrapper {
  display: flex;
  align-items: center;
  gap: 20px;
}

.qc-question-number {
  font-size: 18px;
  color: #d0d0d0;
  font-weight: 300;
  min-width: 30px;
}

.qc-question-text {
  font-size: 20px;
  color: #000;
  font-weight: 400;
}

.qc-toggle-icon {
  width: 28px;
  height: 28px;
  position: relative;
  transition: transform 0.3s ease;
}

.qc-toggle-icon::before,
.qc-toggle-icon::after {
  content: "";
  position: absolute;
  background: #19479e;
  border-radius: 2px;
}

.qc-toggle-icon::before {
  width: 28px;
  height: 3px;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}

.qc-toggle-icon::after {
  width: 3px;
  height: 28px;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  transition: opacity 0.3s ease;
}

.qc-faq-item.qc-active .qc-toggle-icon::after {
  opacity: 0;
}

.qc-faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding-top 0.4s ease;
  /* background: #fafbfc; */
}

.qc-faq-item.qc-active .qc-faq-answer {
  max-height: fit-content;
  padding: 25px 35px 30px 85px;
}

.qc-answer-text {
  font-size: 16px;
  line-height: 1.7;
  color: #5a6c7d;
}

.qc-footer {
  text-align: center;
  margin-top: 50px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  backdrop-filter: blur(10px);
}

.qc-footer-text {
  font-size: 18px;
  color: white;
  font-weight: 300;
  line-height: 1.6;
}

.qc-title {
  font-size: 42px;
  font-weight: 300;
  color: black;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.qc-title-highlight {
  color: #19479e;
  font-weight: 600;
}

.minimal-faq-container {
  width: 100%;
  margin: 0 auto;
}

.minimal-faq-item {
  position: relative;
  margin-bottom: 1px;
}

.minimal-faq-question {
  padding: 16px 0;
  font-size: 15px;
}
.minimal-faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid #e0e0e0;
  text-align: left;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: #000;
  transition: all 0.3s ease;
}
.minimal-faq-question span {
  flex: 1;
  margin-right: 15px;
  font-size: 20px;
  color: #000;
  font-weight: 400;
}
.minimal-faq-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
  color: #000;
}
.minimal-faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  border-bottom: 1px solid transparent;
}
.minimal-faq-answer {
  font-size: 14px;
}
.minimal-faq-answer p {
  margin-bottom: 12px;
  line-height: 1.5;
  color: #000;
}
.minimal-faq-item.active .minimal-faq-answer {
  max-height: 500px;
  padding: 20px 0 20px;
  border-bottom: 1px solid #e0e0e0;
}
.qc-faq-answer * {
  color: black;
}

.qt-container {
  max-width: 1200px;
  width: 100%;
}

.qt-title-section {
  text-align: center;
  margin-bottom: 50px;
  color: white;
}

.qt-title-section h2 {
  font-size: clamp(28px, 5vw, 48px);
  margin-bottom: 15px;
  font-weight: 700;
}

.qt-highlight {
  color: #ffd700;
}

.qt-title-section p {
  font-size: clamp(14px, 2vw, 18px);
  opacity: 0.95;
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto;
}

.qt-pie-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: -80px;
  margin-bottom: -95px;
}

.qt-pie-container {
  position: relative;
  width: clamp(400px, 70vw, 800px);
  height: clamp(400px, 70vw, 800px);
}

.qt-pie-container svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.qt-pie-slice {
  cursor: pointer;
  transition: all 0.3s ease;
  stroke: white;
  stroke-width: 3;
}

.qt-pie-slice:hover {
  filter: brightness(1.1);
  transform-origin: center;
}

.qt-center-circle {
  fill: white;
  filter: drop-shadow(0 10px 40px rgba(0, 0, 0, 0.3));
}

.qt-slice-content {
  position: absolute;
  transform-origin: 50% 50%;
  pointer-events: none;
}

.qt-content-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 15px;
  pointer-events: all;
}

.qt-icon-wrapper {
  width: clamp(40px, 5vw, 60px);
  height: clamp(40px, 5vw, 60px);
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(20px, 3vw, 30px);
  margin-bottom: 8px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.qt-slice-title {
  font-size: clamp(11px, 1.5vw, 16px);
  font-weight: 700;
  color: white;
  margin-bottom: 5px;
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.qt-slice-desc {
  font-size: clamp(8px, 1vw, 12px);
  color: white;
  line-height: 1.3;
  margin-bottom: 8px;
  opacity: 0.95;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.qt-view-more {
  font-size: clamp(9px, 1.1vw, 12px);
  color: white !important;
  text-decoration: none;
  font-weight: 600;
  /* background: #19479e; */
  /* padding: 4px 12px; */
  /* border-radius: 20px; */
  /* transition: all 0.3s ease; */
  /* backdrop-filter: blur(10px); */
  letter-spacing: 1px;
}

.qt-view-more:hover {
  /* background: rgba(255, 255, 255, 0.3); */
  /* transform: scale(1.05); */
}

.qt-center-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 10;
}

.qt-center-text {
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 700;
  color: #19479e;
  margin-bottom: 5px;
}

.qt-center-subtext {
  font-size: clamp(12px, 1.5vw, 18px);
  color: #888;
}

.qt-cta-wrapper {
  text-align: center;
  margin-top: 50px;
}

.qt-cta-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: white;
  color: #19479e;
  padding: 18px 40px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
}

.qt-cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.3);
}

/* Positioning for each slice content */
.qt-slice-content-0 {
  top: 12%;
  left: 50%;
  transform: translateX(-50%);
  width: 25%;
}

.qt-slice-content-1 {
  top: 25%;
  right: 13%;
  width: 25%;
}

.qt-slice-content-2 {
  bottom: 25%;
  right: 15%;
  width: 25%;
}

.qt-slice-content-3 {
  bottom: 12%;
  left: 50%;
  transform: translateX(-50%);
  width: 25%;
}

.qt-slice-content-4 {
  bottom: 25%;
  left: 15%;
  width: 25%;
}

.qt-slice-content-5 {
  top: 25%;
  left: 13%;
  width: 25%;
}

@media (max-width: 768px) {
  .qt-pie-container {
    width: clamp(350px, 90vw, 500px);
    height: clamp(350px, 90vw, 500px);
  }

  .qt-slice-desc {
    display: none;
  }

  .qt-slice-content-0,
  .qt-slice-content-1,
  .qt-slice-content-2,
  .qt-slice-content-3,
  .qt-slice-content-4,
  .qt-slice-content-5 {
    width: 28%;
  }

  .qt-slice-content-0 {
    top: 14%;
  }

  .qt-slice-content-1 {
    right: 12%;
  }

  .qt-slice-content-2 {
    right: 8%;
    bottom: 28%;
  }

  .qt-slice-content-3 {
    bottom: 15%;
  }

  .qt-slice-content-4 {
    left: 10%;
    bottom: 29%;
  }

  .qt-slice-content-5 {
    left: 10%;
  }
}

@media (max-width: 480px) {
  .qt-pie-container {
    width: 500px;
    height: 500px;
  }

  .qt-content-inner {
    padding: 0;
  }

  .bg-cust {
    background-color: #dbe8ff;
  }
}

.qb-card {
  width: 340px;
  height: 85px;
  background: white;
  border-radius: 20px;
  display: flex;
  align-items: center;
  padding: 0;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25), 0 2px 6px rgba(0, 0, 0, 0.15);
  overflow: visible;
  position: relative;
  margin-left: auto;
  margin-bottom: 15px;
}

.qb-card.qb-orange {
  border: 3px solid #e67e22;
}

.qb-card.qb-yellow {
  border: 3px solid #d4a800;
}

.qb-card.qb-green {
  border: 3px solid #27ae60;
}

.qb-number-badge {
  width: 100px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 15px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.2);
  position: absolute;
  left: -30px;
  z-index: 2;
  transform: perspective(400px) rotateY(-8deg);
  transform-origin: right center;
}

.qb-card.qb-orange .qb-number-badge {
  background: #e67e22;
}

.qb-card.qb-yellow .qb-number-badge {
  background: #f1c40f;
}

.qb-card.qb-green .qb-number-badge {
  background: #27ae60;
}

.qb-number {
  font-size: 46px;
  font-weight: 300;
  color: white;
  line-height: 1;
}

.qb-content {
  flex: 1;
  padding: 0 25px;
  padding-left: 90px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.qb-title {
  font-size: 15px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 2px;
  line-height: 1.2;
}

.qb-subtitle {
  font-size: 13px;
  color: #5a6c7d;
  font-weight: 400;
  line-height: 1.2;
}

.qb-blue .qb-number-badge {
  background: #3498db;
}

.qb-purple .qb-number-badge {
  background: #9b59b6;
}

.qb-red .qb-number-badge {
  background: #e74c3c;
}

.qb-teal .qb-number-badge {
  background: #1abc9c;
}

.qb-indigo .qb-number-badge {
  background: #6610f2;
}

.qb-pink .qb-number-badge {
  background: #e83e8c;
}

.qb-cyan .qb-number-badge {
  background: #17a2b8;
}

.qb-lime .qb-number-badge {
  background: #8bc34a;
}

.qb-amber .qb-number-badge {
  background: #ffc107;
}

.qb-deep-orange .qb-number-badge {
  background: #ff5722;
}

.qb-light-blue .qb-number-badge {
  background: #03a9f4;
}

.qb-light-green .qb-number-badge {
  background: #4caf50;
}

.qb-deep-purple .qb-number-badge {
  background: #7e57c2;
}

.qb-blue-gray .qb-number-badge {
  background: #607d8b;
}

.qb-card.qb-blue {
  border: 3px solid #3498db;
}

.qb-card.qb-purple {
  border: 3px solid #9b59b6;
}

.qb-card.qb-red {
  border: 3px solid #e74c3c;
}

.qb-card.qb-teal {
  border: 3px solid #1abc9c;
}

.qb-card.qb-indigo {
  border: 3px solid #6610f2;
}

.qb-card.qb-pink {
  border: 3px solid #e83e8c;
}

.qb-card.qb-cyan {
  border: 3px solid #17a2b8;
}

.qb-card.qb-lime {
  border: 3px solid #8bc34a;
}

.qb-card.qb-amber {
  border: 3px solid #ffc107;
}

.qb-card.qb-deep-orange {
  border: 3px solid #ff5722;
}

.qb-card.qb-light-blue {
  border: 3px solid #03a9f4;
}

.qb-card.qb-light-green {
  border: 3px solid #4caf50;
}

.qb-card.qb-deep-purple {
  border: 3px solid #7e57c2;
}

.qb-card.qb-blue-gray {
  border: 3px solid #607d8b;
}