/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  /* Custom Properties (CSS Variables) */
  :root {
    --primary-color: #333;
    --primary-bg: #f5f4ee;
    --secondary-bg: #e9e9e0ef;
    --accent-color: #c44;
    --border-color: #000;
    --shadow-color: rgba(0, 0, 0, 0.2);
    --transition-speed: 0.3s;
  }
  
  body {
    font-family: Arial, sans-serif;
    background-color: var(--secondary-bg);
    line-height: 1.6;
    color: var(--primary-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  /* Typography */
  h1, h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
  }
  
  h2 {
    margin-bottom: 1rem;
  }
  
  /* Layout */
  header {
    width: 100%;
    background-color: var(--primary-bg);
    /* border: 2px solid var(--border-color); */
  }
  
  .header-container {
    max-width: 1200px;
    margin: 0 auto;
    height: 120px;
    position: relative;
    overflow: hidden;
    /* background: transparent; */
    /* border: 2px solid var(--border-color); */
  }
  
  .header-svg {
    width: 100%;
    height: 100%;
    display: block;
  }
  
  main {
    flex: 1;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
  }
  
  section {
    background-color: var(--primary-bg);
    padding: 1.5rem;
    border-radius: 8px;
    /* border: 1px solid var(--border-color); */
    margin-bottom: 1.5rem;
  }
  
  footer {
    background-color: var(--primary-bg);
    color: var(--primary-color);
    text-align: center;
    padding: 1rem;
    /* border-top: 2px solid var(--border-color); */
    margin-top: auto;
    font-style: italic;
  }
  
  /* Navigation */
  .menu-btn {
    position: absolute;
    padding-top: 10rem;
    padding-bottom: 10rem;
    padding-right: 5em;
    top: 40px;
    left: 20px;
    z-index: 1200;
    color: var(--primary-color);
    background-color: rgba(245, 244, 238, 0.9);
    border-radius: 4px;
    padding: 8px 15px;
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.2);
    font-weight: bold;
    box-shadow: 0 2px 4px var(--shadow-color);
    transition: background-color var(--transition-speed) ease;
  }
  
  .menu-btn:hover {
    background-color: rgba(245, 244, 238, 1);
  }
  
  .side-menu {
    position: fixed;
    top: 100;
    left: -300px;
    width: 250px;
    height: 100vh;
    background-color: var(--primary-bg);
    padding-top: 7rem;
    transition: left var(--transition-speed) ease-in-out;
    z-index: 1100;
    overflow-y: auto;
    border-right: 2px solid var(--border-color);
    box-shadow: 4px 0 10px var(--shadow-color);
  }
  
  .side-menu.open {
    left: 0;
  }
  
  .side-menu a,
  .side-menu .dropbtn {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 1.125rem;
    border-bottom: 1px solid #ccc;
    transition: background-color 0.2s ease;
  }
  
  .side-menu a:hover,
  .side-menu .dropbtn:hover,
  .side-menu a:focus,
  .side-menu .dropbtn:focus {
    background-color: #e5e4de;
    outline: none;
  }
  
  /* Dropdown */
  .dropdown {
    position: relative;
  }
  
  .dropbtn {
    width: 100%;
    background-color: var(--primary-bg);
    border: none;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
  }
  
  .dropdown-content {
    display: none;
    background-color: #eae9e3; /* Slightly darker than main background */
  }
  
  .dropdown-content.show {
    display: block;
  }
  
  .dropdown-content a {
    padding-left: 2.5rem;
    font-size: 1rem;
  }
  
  /* Overlay */
  .overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed) ease;
    z-index: 999;
  }
  
  .overlay.show {
    opacity: 1;
    visibility: visible;
  }
  
  /* Images */
  .image-container {
    text-align: center;
    margin-bottom: 1.5rem;
  }
  
  .image-container img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    margin: 0 auto;
    box-shadow: 0 4px 8px var(--shadow-color);
  }
  
  /* Accessibility */
  .skip-link {
    position: absolute;
    top: -3rem;
    left: 0;
    background: #000;
    color: white;
    padding: 0.5rem 1rem;
    z-index: 100;
    transition: top 0.2s ease;
  }
  
  .skip-link:focus {
    top: 0;
  }
  
  /* Loading indicator */
  .loading {
    text-align: center;
    padding: 2rem;
    font-size: 1.25rem;
    color: var(--primary-color);
  }
  
  /* Media Queries */
  @media (max-width: 768px) {
    .header-container {
      height: 160px;
    }
    
    main {
      padding: 1rem;
    }
  
    .side-menu {
      width: 80%;
      max-width: 300px;
    }
  }
  
  @media (min-width: 1400px) {
    .header-container {
      height: 220px;
    }
  }
  
  @media (prefers-reduced-motion: reduce) {
    .side-menu,
    .overlay {
      transition: none;
    }
  }

  /* Nested dropdowns */
.dropdown.nested {
  padding-left: 1rem;
}

.dropdown.nested .dropbtn {
  font-size: 0.95rem;
  font-weight: normal;
  text-align: left;
  width: 100%;
  padding-left: 1rem;
  background-color: #f5f5f5;
}

.dropdown.nested .dropdown-content {
  background-color: #f0f0e8;
  padding-left: 1rem;
}

.dropdown-content.nested-content {
  display: none;
}

.dropdown-content.nested-content.show {
  display: block;
}

.dropdown.nested a {
  font-size: 0.9rem;
  padding-left: 2rem;
}