:root {
  --bg-color: #000000;
  --foreground-color: #ffffff;
  --accent-color: #3376f2;
  --card-color: #333;
  --border-color: #444;
  --popup-bg: rgba(42, 42, 42, 0.9);
  --hover: #4D4D4D;
    --button-color: #1a3b7a;
}

* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
  max-width: 100vw;
}

header {
  width: 100vw;
  position: sticky;
  top: 0;
  z-index: 1000;
  background: none;
  transform: translateY(-100%);
  opacity: 0;
  animation: slideDown 0.5s ease-out forwards;
}

@keyframes slideDown {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.header-links {
    display: flex;
    flex-direction: row;
    gap: 29px;
    margin-top: auto;
    margin-bottom: auto;
    align-items: center;
}

.header-right {
    position: relative;
    display: flex;
    flex-direction: row;
    gap: 20px;
    align-items: center;
    margin: 5px 0px 5px auto;
}

.header-right a {
    display: block;
    margin-bottom: auto;
    margin-top: auto;
    font-size: 0.8rem;
}

.header-donate-btn {
    display: block;
    padding: 12px 20px;
    background-color: var(--button-color);
    color: var(--fg-color);
    border-radius: 8px;
}

.header-donate-btn:hover {
    text-decoration: none;
    background-color: var(--accent-color);
}

header nav.container {
  padding: 0px 5px 0px 30px;
  display: flex;
  flex-direction: row;
  position: relative;
  align-items: center;
}

header nav.container img {
  display: inline-block;
  margin-right:15px;
  margin-top: auto;
  margin-bottom: auto;
}

header nav.container a {
    display: inline-block
    min-width: 100px;
  font-size: 1.2rem;
  color: var(--foreground-color);
}

header nav.container a:hover {
  text-decoration: underline;
}

header .mobile-nav-header {
  display: none;
  justify-content: space-between;
  align-items: center;
  flex-direction: row;
  width: 90%;
  background-color: var(--card-color);
  border: 1px solid var(--border-color);
  margin: 20px auto;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: translateY(100%);
  opacity: 0;
  animation: slideUp 0.5s ease-out forwards;
}

@keyframes slideUp {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

header .mobile-nav-header img {
  display: block;
  border-radius: 4px;
}

header .mobile-nav {
  display: none;
  width: 100vw;
  height: 100vh;
  position: fixed;
  top: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--card-color);
  flex-direction: column;
  gap: 15px;
  padding: 10px;
  border: 1px solid var(--border-color);
  transform: translateX(100%);
  opacity: 0;
  animation: slideIn 0.5s ease-out forwards;
}

@keyframes slideIn {
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

header .mobile-nav a {
  font-size: 1.2rem;
  color: var(--foreground-color);
}

header .mobile-nav a:hover {
  text-decoration: underline;
}

header .menu-toggle,
header .close-button {
    position: absolute;
    display: block;
    right: 5px;
    top: auto;
    bottom: auto;
    width: fit-content;
    padding: 15px;
  background: none;
  border: none;
  color: var(--foreground-color);
  font-size: 1.5rem;
  cursor: pointer;
}

header .mobile-nav-logo {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 15vw;
  height: auto;
}

header .mobile-nav-logo img {
  width: 100%;
  height: auto;
  border-radius: 4px;
}

    .dropdown {
      position: relative;
      display: inline-block;
    }

    .dropdown-toggle {
        display: inline-block;
        padding: 15px 0px;
        min-width: 100px;
      cursor: pointer;
      display: flex;
      align-items: center;
    }
    
    .dropdown-toggle:hover {
        background-color: var(--hover);
    }

    .dropdown-toggle::after {
      content: "  ▼";
      font-size: 1.2rem;
    }

    .dropdown-menu {
      display: none;
      position: absolute;
      background-color: var(--popup-bg);
      border-radius: 0px 0px 8px 8px;
      text-align: left;
      box-shadow: 0 4px 8px rgba(0,0,0,0.15);
      min-width: 150px;
      z-index: 1000;
    }

    .dropdown-menu a {
      display: block;
      padding: 0.5em 1em;
      text-decoration: none;
      color: black;
    }

    .dropdown-menu a:hover {
      background-color: var(--accent-color);
    }

    .dropdown:hover .dropdown-menu {
      display: block; /* show on hover */
    }

    .dropdown.open .dropdown-menu {
      display: block;
    }