:root {
  --bg: #f8f8f8;
  --text: #222;
  --header: #222;
  --nav-bg: #444;
  --link: #333;
  --link-hover: #555;
}

body.dark {
  --bg: #1a1a1a;
  --text: #f1f1f1;
  --header: #111;
  --nav-bg: #333;
  --link: #eee;
  --link-hover: #ccc;
}

body {
  font-family: Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 0;
  transition: background 0.3s, color 0.3s;
}


header {
  background: url('iceland.jpg') center 65% / cover no-repeat fixed;
  color: white;
  padding: 5rem 2rem;
  text-align: center;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}





@media (max-width: 600px) {
  header {
    padding: 3rem 1rem;
    min-height: 200px;
  }
}


nav {
  position: absolute;
  top: 0;
  right: 0;
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.dropdown {
  position: relative;
}

.dropdown-btn {
  background: var(--nav-bg);
  color: white;
  padding: 0.75rem 1.5rem;
  font-size: 1.1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
  transition: background 0.2s ease;
}
.dropdown-btn:hover {
  background: #666;
}


.dropdown-content {
  display: none;
  position: absolute;
  right: 0;
  background-color: #fff;
  min-width: 120px;
  box-shadow: 0px 8px 16px rgba(0,0,0,0.2);
  z-index: 1;
}

.dropdown-content a {
  color: var(--link);
  padding: 0.75rem;
  display: block;
  text-decoration: none;
}

.dropdown-content a:hover {
  background-color: #eee;
}

.dropdown:hover .dropdown-content {
  display: block;
}

#dark-toggle {
  cursor: pointer;
  padding: 0.5rem 1rem;
  background: var(--nav-bg);
  color: white;
  border: none;
  border-radius: 4px;
}

.container {
  padding: 2rem;
}

.header-overlay {
  background-color: rgba(0, 0, 0, 0.5); /* semi-transparent black */
  padding: 1rem 2rem;
  border-radius: 10px;
  backdrop-filter: blur(3px);
}


footer {
  background: var(--header);
  color: white;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input, textarea {
  padding: 0.75rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}

button[type="submit"] {
  background-color: #333;
  color: white;
  border: none;
  padding: 0.75rem;
  cursor: pointer;
  border-radius: 4px;
}

@media (max-width: 600px) {
  header {
    background-attachment: scroll;
    background-position: center 55%;
  }
}