:root {
  --brand-primary: #377dbf;  ;    /* Bright blue, main brand colour */
  --brand-hover: #073F99;      /* Slightly darker but still vibrant for hover */
  --brand-accent: #5a8be0; ;     /* Nice medium blue for accents */
  --brand-light: #E8ECFF;      /* Light blue for backgrounds, highlights */
  --brand-footer:#222B36;
  --brand-bg: #F4F7FF;
}


html{
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}



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

  
  body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: #333;
      line-height: 1.7;
      overflow-x: hidden;
    }

  .container{
      max-width: 800px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    /* Navbar */
    nav {
        padding: 20px 40px;
        display: flex;
        position:static;
        justify-content: space-between;
        align-items: center;
        background:white;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);  /* Subtle shadow for separation */
      }

      
/* Logo Wrapper */
.logo-wrapper {
  height: 100%;
  display: flex;
  align-items: center;
}

/* Nu Energy Logo */
.logo {
  width:50%;
}
  
      .hamburger {
        font-size: 2rem;
        color: black;
        cursor: pointer;
        display: none;
      }
  
      /* Full Menu Links */
      nav ul {
        display: flex;
        list-style-type: none;
        align-items: center;
      }
  
      nav ul li {
        margin: 0 25px; 
        position:relative;
      }
  
      nav ul li a {
        color: #333;
        text-decoration: none;
        font-size: 1.1rem;
      }

      nav ul li a:hover{
        color:var(--brand-hover);
        font-weight:600;
      }

      .dropdown_menu{
        display:none;
      }



      /* .nav-hero{
        height:cal(100vh -80px);

      } */
      /* Side Menu for Mobile */
      .side-menu {
        position: fixed;
        top: 0;
        left: -250px;
        width: 250px;
        height: 100%;
        background:var(--brand-primary);
        color:white;
        padding-top: 60px;
        transition: 0.3s;
        z-index: 1001;
      }
  
      .side-menu.active {
        left: 0;
      }
  
      .side-menu li {
        list-style: none;
        padding: 20px 20px;
      }
  
      .side-menu li a {
        color: white;
        text-decoration: none;
        font-size: 1.2rem;
      }
  
      .close-btn {
        position: absolute;
        top: 20px;
        right: 20px;
        font-size: 1.8rem;
        color: white;
        cursor: pointer;
      }
  
      /* Overlay */
      .overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s;
      }
  
      .overlay.active {
        opacity: 1;
        visibility: visible;
      }
  
      /* Mobile Responsiveness */
      @media screen and (max-width: 768px) {
        nav ul {
          display: none;
        }
  
        .hamburger {
          display: block;
        }
      }
  
  
.btn-cta {
    display: inline-flex; /* use flex for smooth content movement */
    align-items: center;
    gap: 0.5rem; /* space between text and arrow */
    padding: 0.9rem 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(6px);
        color: #1a1a1a;
    border: 1px solid rgba(0, 0, 0, 0.1);
    font-weight: 500;
    font-size: 1rem;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.35s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

/* Arrow styling */
.btn-cta .arrow {
    display: inline-block;
    font-size: 1.1rem;
    transition: transform 0.35s ease;
    position: relative;
}

/* On hover: push entire content right, arrow moves further right */
.btn-cta:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    transform: translateX(6px);  /* pushes whole button content right */
}

/* Arrow moves even more right independently */
.btn-cta:hover .arrow {
    transform: translateX(12px);
}


.trade-discount-banner {
  background: var(--brand-light);
  text-align: center;
  padding: 40px 20px;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.trade-discount-banner .banner-content {
  max-width: 800px;
  margin: 0 auto;
}

.trade-discount-banner h2 {
  font-size: 2rem;
  margin-bottom: 15px;
}

.trade-discount-banner p {
  font-size: 1.1rem;
  margin-bottom: 30px;
}

.trade-discount-banner .cta-button {
  background-color:var(--brand-primary);
  color:white;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
  padding: 15px 35px;
  font-size: 1.1rem;
  border-radius: 30px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.15);
  transition: 0.3s ease-in;

}

.trade-discount-banner .cta-button:hover {
  background-color:var(--brand-hover);
}

@media (max-width: 600px) {
  .trade-discount-banner h2 {
    font-size: 1.8rem;
  }

  .trade-discount-banner p {
    font-size: 1rem;
  }

  .trade-discount-banner .cta-button {
    padding: 12px 25px;
    font-size: 1rem;
  }
}



  
  
/* CTA Section Styling */
.cta-section {
    position: relative;
    text-align: center;
    padding: 60px 20px;
    background: 
    linear-gradient(to right, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.9)), 
    url('https://images.theecoexperts.co.uk/wp-content/uploads/2021/11/heat-pumps-with-an-engineer.jpeg');
background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    color: #f4f4f4;
    overflow: hidden;
    border-radius: 10px;
  }

  #cta.cta-section.bottom{
    border-radius: 0px;
  }
  

  .cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    position: relative;
    z-index: 2;
    font-weight: bold;
  }
  
  .cta-section p {
    font-size: 1.2rem;
    max-width: 1200px;
    margin: 0 auto 30px;
    position: relative;
    z-index: 2;
    font-weight: 400;
  }
  
  

.feature-section {
    padding: 40px 20px;
}
  
.feature-section .container{
      display: flex;
      justify-content: space-between;
      gap:20px;
      align-items: center;
    }

  .feature-section .container .feature-text a{
    display: inline-block;
    margin-top: 8px;
  }

  .feature-section img{
    height:auto;
    width:100%;
    max-width:600px;
    border-radius: 8px;
  }