/* Reset */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

 /* WhatsApp Button Styling */
.whatsapp-button {
  position: fixed;
  bottom: 30px;
  right: 50px;
  background-color: #25D366;
  border-radius: 50%;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: visible;
  position: fixed;
}

.whatsapp-button:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.whatsapp-icon {
  width: 30px;
  height: 30px;
}

/* Tooltip Styling */
.whatsapp-tooltip {
  position: absolute;
  right: 70px; /* Position to the left of the WhatsApp button */
  background-color: #ffffff;
  color: #25D366;
  padding: 5px 10px;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  font-size: 14px;
  font-weight: bold;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  pointer-events: none;
}

.whatsapp-button:hover .whatsapp-tooltip {
  opacity: 1;
  visibility: visible;
}



@media (max-width: 480px) {
  .whatsapp-button {
      width: 50px;
      height: 50px;
      left: 15px;
  }

  .whatsapp-icon {
      width: 24px;
      height: 24px;
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  .whatsapp-button {
      width: 55px;
      height: 55px;
  }

  .whatsapp-icon {
      width: 28px;
      height: 28px;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .whatsapp-button {
      width: 60px;
      height: 60px;
  }

  .whatsapp-icon {
      width: 30px;
      height: 30px;
  }
}

@media (min-width: 1025px) {
  .whatsapp-button {
      width: 70px;
      height: 70px;
  }

  .whatsapp-icon {
      width: 35px;
      height: 35px;
  }
}
 

/* General Classes */
.hvac-container {
    font-family: Arial, Helvetica, sans-serif;
    color: #222;
    background: #fff;
    line-height: 1.6;
}

.hvac-heading {
    font-weight: 700;
    color: #1d3557;
}
.hvac-heading-b{
    font-weight: 800;
    color: black;
    font-size: 28px;
}
.hvac-heading-b1{
    font-weight: 700;
    color:#00a884;
    /* font-size: 28px; */
}
.hvac-paragraph-bp{
    color: #444;
    margin-bottom: 10px;
}

.hvac-subheading {
    font-weight: 600;
    color: #00a884;
    margin-bottom: 10px;
}

.hvac-paragraph {
    color: #444;
    margin-bottom: 10px;
}

.hvac-btn {
    display: inline-block;
    background: #00a884;
    color: #fff;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    transition: background 0.3s ease;
    width: 30%;
    text-align: center;
}

.hvac-btn:hover {
    background: #00cea1;
}

.hvac-section {
    /* padding: 60px 8%; */
    padding: 40px 20px 40px 40px  ;

}

/* Hero Section */
.hvac-hero {
    background: url('images/visen\ hero\ update.webp') no-repeat center center/cover;
    position: relative;
    text-align: left;
    padding: 120px 8%;
    color: #fff;
    height: 100vh;
    display: flex;
    align-items: center; /* vertically center */
}

.hvac-hero::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.55);
    z-index: 1;
}

.hvac-hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 65%;
}

.hvac-hero-title {
    font-size: 2.8rem;
    margin-bottom: 20px;
    color: #fff;
    line-height: 1.3;
}

.hvac-hero-text {
    font-size: 1.2rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.hvac-btn-hero {
    display: inline-block;
    padding: 12px 10px 15px 0px;
    background: #00a884;
    color: #fff;
    border-radius: 6px;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    transition: background 0.3s;
    width: 33%;
    text-align: center;
}

.hvac-btn-hero:hover {
    background: #007a61;
}

/* ✅ Tablet view */
@media (max-width: 992px) {
    .hvac-hero {
        padding: 100px 6%;
        height: auto; /* let content define height */
    }
    .hvac-hero-content {
        width: 80%;
    }
    .hvac-hero-title {
        font-size: 2.2rem;
    }
    .hvac-hero-text {
        font-size: 1.05rem;
    }
}

/* ✅ Mobile view */
@media (max-width: 768px) {
    .hvac-hero {
        padding: 80px 5%;
        text-align: center;
        justify-content: center;
    }
    .hvac-hero-content {
        width: 100%;
        align-items: center;
    }
    .hvac-hero-title {
        font-size: 1.8rem;
    }
    .hvac-hero-text {
        font-size: 0.95rem;
    }
    .hvac-btn-hero {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* ✅ Small Phones */
@media (max-width: 480px) {
    .hvac-hero {
        padding: 60px 4%;
        height: 65vh;
    }
    .hvac-hero-title {
        font-size: 1.5rem;
    }
    .hvac-hero-text {
        font-size: 0.9rem;
    }
    .hvac-btn-hero {
        padding: 8px 18px;
        font-size: 0.85rem;
        width: 60%;
    }
}


/* Problems Section */
/* .hvac-problems {
    text-align: center;
}

.hvac-problem-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.hvac-problem-card {
    background: #fff;
    border-left: 6px solid #00a884;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

.hvac-problem-card:hover {
    transform: translateY(-5px);
}
.hvac-solution-img-sec{
    width: 50%;
}
.hvac-solution-img-sec-1{
    width: 50%;
} */





/* Problems Section */
/* .problems {
    padding: 60px 20px;
    background: #f9f9f9;
}

.problems-header {
    text-align: center;
    max-width: 750px;
    margin: 0 auto 50px auto;
}

.problems-header h2 {
    font-size: 2rem;
    color: #00a884;
    margin-bottom: 10px;
}

.problems-header p {
    font-size: 1rem;
    color: #555;
}


.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
}


.problems-card {
    background: #fff;
    padding: 25px 20px;
    border-radius: 14px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-align: left;
}

.problems-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}


.problems-card h3 {
    font-size: 1.25rem;
    color: #333;
    margin-bottom: 10px;
}

.problems-card p {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.5;
} */




.problem-section {
  padding: 60px 8%;
  background: #f9f9f9;
}

.problem-header {
  text-align: center;
  padding-top: 20px;
}

.problem-heading {
  font-size: 2rem;
  font-weight: 700;
  color: #00a884;
}

.problem-subheading {
  font-size: 1rem;
  color: #555;
  max-width: 700px;
  margin: 10px auto 40px;
}

.problem-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: space-between;
}

.problem-card {
  background: #fff;
  flex: 1 1 calc(23.333% - 15px);
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0px 4px 8px rgba(0,0,0,0.15);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-bottom: 4px solid #00a884;
  transition: transform 0.3s ease-in-out;
}

.problem-card:hover {
  transform: translateY(-5px);
}

.problem-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  width: 100%;
}

.problem-info {
  width: 70%;
}

.problem-name {
  font-weight: 600;
  font-size: 1rem;
}

.problem-image {
  width: 30%;
  text-align: right;
}

.problem-image svg {
  max-width: 50px;
  height: auto;
}

/* ✅ Tablet screens */
@media (max-width: 1045px) {
  .problem-card {
    flex: 1 1 calc(50% - 15px);
  }
  .problem-heading {
    font-size: 1.8rem;
  }
  .problem-subheading {
    font-size: 0.95rem;
  }
}

/* ✅ Mobile screens */
@media (max-width: 768px) {
  .problem-wrapper {
    flex-direction: column;
    gap: 20px;
  }
  .problem-card {
    flex: 1 1 100%;
    padding: 18px;
  }
  .problem-heading {
    font-size: 1.6rem;
  }
  .problem-subheading {
    font-size: 0.9rem;
    margin-bottom: 25px;
  }
  .problem-content {
    flex-direction: row;
    gap: 10px;
  }
  .problem-name {
    font-size: 0.95rem;
  }
  .problem-image svg {
    max-width: 45px;
  }
}

/* ✅ Small phones */
@media (max-width: 480px) {
  .problem-heading {
    font-size: 1.4rem;
  }
  .problem-subheading {
    font-size: 0.85rem;
  }
  .problem-card {
    padding: 15px;
  }
  .problem-name {
    font-size: 0.9rem;
  }
  .problem-image svg {
    max-width: 40px;
  }
}




























/* Solution Section */
/* Solution Section */
.hvac-solution {
    display: flex;
    align-items: center;
    gap: 40px;
    width: 100%;
    background-color: #e6e6e6;
    border-bottom: 4px solid #0d1b2a;
    border-radius: 0px 0px 12px 12px;
    padding: 60px 8%;
}

.hvac-solution-img-sec {
  width: 50%;
}

.hvac-solution-img-sec-1 {
  width: 50%;
}

.hvac-solution-img {
    width: 100%;
    border-radius: 12px;
}
.hvac-btn-solution {
    display: inline-block;
    padding: 12px 10px 15px 0px;
    background: #00a884;
    color: #fff;
    border-radius: 6px;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    transition: background 0.3s;
    width: 30%;
    text-align: center;
}

.hvac-btn-solution:hover {
    background: #007a61;
}

/* ✅ Tablet Screens */
@media (max-width: 1024px) {
  .hvac-solution {
    flex-direction: column;
    text-align: center;
    gap: 30px;
    padding: 50px 6%;
  }

  .hvac-solution-img-sec,
  .hvac-solution-img-sec-1 {
    width: 100%;
  }

  .hvac-heading {
    font-size: 1.8rem;
    margin-bottom: 15px;
  }

  .hvac-paragraph {
    font-size: 1rem;
    margin-bottom: 20px;
  }
}

/* ✅ Mobile Screens */
@media (max-width: 768px) {
  .hvac-solution {
    padding: 40px 5%;
  }

  .hvac-heading {
    font-size: 1.6rem;
  }

  .hvac-paragraph {
    font-size: 0.95rem;
  }

  .hvac-btn-solution {
    display: inline-block;
    padding: 12px 25px;
    font-size: 0.95rem;
    width: 40%;
  }
}

/* ✅ Small Phones */
@media (max-width: 480px) {
  .hvac-heading {
    font-size: 1.4rem;
  }

  .hvac-paragraph {
    font-size: 0.9rem;
  }

  .hvac-btn-solution {
    width: 50%;
    padding: 7px;
    font-size: 1rem;
  }
}


/* Feature Cards Section */
/* .hvac-features {
    text-align: center;
}

.hvac-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.hvac-feature-card {
    background: #fff;
    border-left: 1px solid #00a884;
    border-bottom: 4px solid #00a884;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.08);
} */

.hvac-features {
    text-align: center;
    padding: 60px 8%;
    background: #f9f9f9;
}

.hvac-heading {
    font-size: 2.2rem;
    font-weight: 700;
    color: #00a884;
    margin-bottom: 20px;
}
.hvac-feature-card h3{
      font-size: 1.25rem;
    font-weight: 700;
    color: #00a884;
    margin-bottom: 20px;
}

.hvac-paragraph {
    font-size: 1rem;
    color: #555;
    line-height: 1.6;
}

.hvac-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.hvac-feature-card {
    background: #fff;
    border-left: 1px solid #00a884;
    border-bottom: 4px solid #00a884;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.hvac-feature-card:hover {
    transform: translateY(-6px);
}

/* ✅ Tablet Screens */
@media (max-width: 1024px) {
  .hvac-heading {
    font-size: 1.8rem;
  }

  .hvac-paragraph {
    font-size: 0.95rem;
  }

  .hvac-feature-card {
    padding: 20px;
  }
}

/* ✅ Mobile Screens */
@media (max-width: 768px) {
  .hvac-features {
    padding: 40px 6%;
  }

  .hvac-heading {
    font-size: 1.6rem;
  }

  .hvac-paragraph {
    font-size: 0.9rem;
  }

  .hvac-feature-grid {
    grid-template-columns: 1fr; /* stack cards */
    gap: 20px;
  }
}

/* ✅ Small Phones */
@media (max-width: 480px) {
  .hvac-heading {
    font-size: 1.4rem;
  }

  .hvac-paragraph {
    font-size: 0.85rem;
  }

  .hvac-feature-card {
    padding: 18px;
  }

  .hvac-feature-card svg {
    width: 40px;
    height: 40px;
    margin-bottom: 10px;
  }
}


















/* Analytics Section */
.hvac-analytics {
    /* background: #00a884; */
    background: linear-gradient(135deg, #00a884, #007a61);
    color: #fff;
    text-align: center;
    padding: 80px 8%;
    border-radius: 12px;
}
.hvac-heading-ins{
    color: white;
    font-weight: 700;
}
.hvac-paragraph-ins{
    color: white;
    margin-bottom: 10px;
}

.hvac-heading-case-con{
        color: #00a884;
    font-weight: 700;
}
.hvac-paragraph-case-con{
        color: white;
    margin-bottom: 10px;
}

/* Case Section */
.hvac-case {
    background: url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?auto=format&fit=crop&w=1400&q=80') no-repeat center/cover;
    position: relative;
    text-align: center;
    color: #fff;
}

.hvac-case::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.65);
}

.hvac-case-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: auto;
    padding: 60px 8%;
}

/* Benefits Section */
/* .hvac-benefits {
    text-align: center;
}

.hvac-benefit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.hvac-benefit-item {
    background: #fff;
    border-left: 6px solid #00a884;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.08);
} */




/* Sustainability Section */
/* .hvac-sustain {
    display: flex;
    align-items: center;
    gap: 40px;
    width: 100%;

}
.hvac-sustain-div{
    width: 50%;
}

.hvac-sustain-div-img{
    width: 50%;
}

.hvac-sustain-img {
    width: 100%;

    border-radius: 12px;
} */
.hvac-sustain {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    width: 100%;
    padding: 60px 8%;
    background: #f9f9f9;
}

.hvac-sustain-div {
    width: 50%;
}

.hvac-sustain-div-img {
    width: 50%;
}

.hvac-sustain-img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 3px 12px rgba(0,0,0,0.1);
}
.hvac-btn-sustain {
    display: inline-block;
    padding: 12px 24px;
    background: #00a884;
    color: #fff;
    border-radius: 6px;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    transition: background 0.3s, transform 0.2s;
}

.hvac-btn-sustain:hover {
    background: #007a61;
    transform: translateY(-2px);
}

/* ✅ Tablet Screens */
@media (max-width: 1024px) {
  .hvac-sustain {
    gap: 25px;
    padding: 50px 6%;
  }

  .hvac-heading {
    font-size: 1.8rem;
  }

  .hvac-paragraph {
    font-size: 0.95rem;
  }
    .hvac-btn-sustain {
    font-size: 0.95rem;
    padding: 11px 22px;
  }

  
}

/* ✅ Mobile Screens */
@media (max-width: 768px) {
  .hvac-sustain {
    flex-direction: column; /* stack text + image */
    text-align: center;
    padding: 40px 5%;
  }

  .hvac-sustain-div,
  .hvac-sustain-div-img {
    width: 100%;
  }

  .hvac-sustain-div {
    order: 1; /* text first */
  }

  .hvac-sustain-div-img {
    order: 2; /* image below */
  }

  .hvac-heading {
    font-size: 1.6rem;
    margin-bottom: 15px;
  }

  .hvac-paragraph {
    font-size: 0.9rem;
    margin-bottom: 20px;
  }

  .hvac-sustain-img {
    max-width: 90%;
    margin: 0 auto;
  }
   .hvac-btn-sustain {
    font-size: 0.9rem;
    padding: 10px 20px;
    display: inline-block;
    margin-top: 15px;
  }
}

/* ✅ Small Phones */
@media (max-width: 480px) {
  .hvac-heading {
    font-size: 1.4rem;
  }

  .hvac-paragraph {
    font-size: 0.85rem;
  }
  .hvac-btn-sustain {
    font-size: 0.85rem;
    padding: 9px 18px;
    width: 60%;
    text-align: center;
  }
}




/* Benefits Section */
.benefits {
  padding: 60px 20px;
  background: #e6e6e6;
  border-bottom: 4px solid #0d1b2a;
  border-radius: 0px 0px 12px 12px;
  margin: 0px 0px 5px 0px;
}

.benefits-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px auto;
}

.benefits-header h2 {
  font-size: 2.2rem;
  color: #00a884;
  margin-bottom: 10px;
}

.benefits-header p {
  font-size: 1rem;
  color: #555;
}

/* Grid Layout */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
  padding: 40px;
}

/* Card Style */
.benefit-card {
  background: #fff;
  padding: 30px 25px;
  border-radius: 16px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  text-align: center;
  transition: all 0.3s ease;
  border-bottom: 4px solid #00a884;
}

.benefit-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

/* Icon Style */
.benefit-icon {
  margin-bottom: 20px;
}

.benefit-icon img {
  width: 60px;
  height: 60px;
  object-fit: contain;
}

/* Text */
.benefit-card h3 {
  font-size: 1.25rem;
  color: #00a884;
  margin-bottom: 10px;
}

.benefit-card p {
  font-size: 0.95rem;
  color: #555;
  line-height: 1.5;
}

/* ========================= */
/* ✅ Responsive Adjustments */
/* ========================= */

/* Tablets */
@media (max-width: 1024px) {
  .benefits {
    padding: 50px 15px;
  }

  .benefits-header h2 {
    font-size: 1.8rem;
  }

  .benefits-header p {
    font-size: 0.95rem;
  }

  .benefit-card {
    padding: 25px 20px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .benefits-grid {
    grid-template-columns: 1fr; /* stack all cards */
    gap: 20px;
    padding: 20px;
  }

  .benefits-header h2 {
    font-size: 1.6rem;
  }

  .benefits-header p {
    font-size: 0.9rem;
  }

  .benefit-card h3 {
    font-size: 1.1rem;
  }

  .benefit-card p {
    font-size: 0.9rem;
  }
}

/* Small Phones */
@media (max-width: 480px) {
  .benefits {
    padding: 40px 10px;
  }

  .benefits-header h2 {
    font-size: 1.4rem;
  }

  .benefits-header p {
    font-size: 0.85rem;
  }

  .benefit-card {
    padding: 20px 15px;
  }

  .benefit-card h3 {
    font-size: 1rem;
  }

  .benefit-card p {
    font-size: 0.85rem;
  }
}










/* CTA Section */
/* CTA Section */
.hvac-cta {
  text-align: center;
  padding: 80px 8%;
  background: linear-gradient(135deg, #00a884, #007a61);
  border-radius: 12px;
  border-bottom: 4px solid #0d1b2a;
}

.hvac-heading-transform {
  color: white;
  font-weight: 700;
  font-size: 2.2rem;
  margin-bottom: 15px;
}

.hvac-paragraph-transform {
  color: white;
  margin-bottom: 20px;
  font-size: 1.1rem;
  line-height: 1.6;
}
.hvac-btn-cta {
    display: inline-block;
    background: #00a884;
    color: #fff;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    transition: background 0.3s ease;
    width: 20%;
    text-align: center;
}

.hvac-btn-cta:hover {
    background: #00cea1;
}

/* ========================= */
/* ✅ Responsive Adjustments */
/* ========================= */

/* Tablets */
@media (max-width: 1024px) {
  .hvac-cta {
    padding: 60px 6%;
  }

  .hvac-heading-transform {
    font-size: 2rem;
  }

  .hvac-paragraph-transform {
    font-size: 1rem;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .hvac-cta {
    padding: 50px 5%;
  }

  .hvac-heading-transform {
    font-size: 1.8rem;
  }

  .hvac-paragraph-transform {
    font-size: 0.95rem;
  }

  .hvac-btn-cta {
    display: inline-block;
    width: 50%;  /* full-width button on mobile */
    max-width: 320px;
    padding: 14px 0;
    font-size: 1rem;
  }
}

/* Small Phones */
@media (max-width: 480px) {
  .hvac-cta {
    padding: 40px 4%;
  }

  .hvac-heading-transform {
    font-size: 1.6rem;
  }

  .hvac-paragraph-transform {
    font-size: 0.9rem;
  }

  .hvac-btn-cta {
    font-size: 0.95rem;
    padding: 12px 0;
  }
}