/* navbar.css */
:root {
    --secondary-color: #333333; /* Dark gray */
    --accent-color: white; /* Light almost-white */
    --golden-ratio: 1.618;
  }
  
  .header {
    background-color: black;
    padding: calc(1rem / var(--golden-ratio)) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 calc(0.5rem / var(--golden-ratio)) calc(1rem / var(--golden-ratio)) rgba(0,0,0,0.2);
  }
  
  .container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: calc(0.5rem * var(--golden-ratio)) 0;
  }
  
  .logo {
    height: calc(3rem * var(--golden-ratio));
    width: calc(3rem * var(--golden-ratio));
    transition: transform 0.3s ease;
  }
  
  .nav-menu {
    display: flex;
    gap: calc(1rem * var(--golden-ratio));
    list-style: none;
    margin: 0;
    padding-left: 30%;
    padding-right: 30%;
  }
  
  .nav-menu li a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    font-size: calc(1rem / var(--golden-ratio));
    letter-spacing: 0.05em;
    font-size: 15px;
    padding: calc(0.5rem / var(--golden-ratio)) calc(1rem / var(--golden-ratio));
    position: relative;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  }
  
  .nav-menu li a:before {
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
  }
  
  .nav-menu li a:hover {
    color: #1691D9;
  }
  
  .nav-menu li a:hover:before {
    width: 100%;
    left: 0;
  }
  
  .social-icons {
    display: flex;
    gap: 1rem;
  }
  
  .social-icons a {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
  }
  
  .social-icons img {
    width: 60%;
    height: 60%;
    transition: all 0.3s ease;
    object-fit: contain;
    filter: grayscale(100%) contrast(1.2) brightness(1.1);
    opacity: 0.8;
  }

  .social-icons a:hover img {
    filter: none;
    opacity: 1;
  }
  
  /* Mobile menu */
  .menu-toggle {
    display: none;
    cursor: pointer;
    padding: 0.5rem;
  }
  
  .bar {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 5px 0;
    transition: all 0.3s ease;
  }
  
  @media (max-width: 768px) {

    .social-icons {

      padding-left: 100px;
    }

    .social-icons a {
      width: 25px;
      height: 25px;
    }
  
    .social-icons img {
      width: 19px;
      height: 19px;
    }

    .menu-toggle {
      display: block;
    }
    
    .nav-menu {
      position: fixed;
      top: 120px;
      left: -100%;
      width: 100%;
      height: calc(100vh - 70px);
      background-color: var(--secondary-color);
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      padding-top: 2rem;
      gap: 2rem;
      transition: left 0.3s ease;
      z-index: 999;
    }
    
    .nav-menu.active {
      left: 0;

    }
    

    .menu-toggle.active .bar:nth-child(1) {
      transform: translateY(8px) rotate(45deg);
    }
    
    .menu-toggle.active .bar:nth-child(2) {
      opacity: 0;
    }
    
    .menu-toggle.active .bar:nth-child(3) {
      transform: translateY(-8px) rotate(-45deg);
    }
  }