:root {
  --bg: #121212;
  --fg: #e0e0e0;
  --accent: #1f1f1f;
  --hover: #333333;
  --error-bg: #330000;
  --error-fg: #ff6666;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: Arial, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--fg);
  text-decoration: none;
}

nav {
  background: var(--accent);
  padding: 0.5rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav .site-title {
  font-size: 1.5rem;
  font-weight: bold;
}

nav ul {
  list-style: none;
  display: flex;
  position: relative;
}

nav ul li {
  margin-left: 1rem;
  position: relative;
}

nav ul li a {
  padding: 0.5rem;
  display: block;
}

nav ul li:hover > a,
nav ul li a:hover {
  background: var(--hover);
}

nav ul li .dropdown {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--accent);
  border: 1px solid #000;
}

nav ul li:hover .dropdown {
  display: block;
}

nav ul li .dropdown a {
  white-space: nowrap;
}

main {
  flex: 1;
  padding: 2rem;
}

footer {
  border-top: 1px solid #000;
  text-align: center;
  padding: 0.5rem;
  font-size: 0.9rem;
}

/* index “call to action” box */
.welcome-box {
  background: var(--accent);
  padding: 2rem;
  border-radius: 8px;
  max-width: 400px;
  margin: 4rem auto;
  text-align: center;
}
.welcome-box h1 {
  margin-bottom: 1rem;
}
.welcome-box a {
  display: inline-block;
  margin: 0 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--hover);
  border-radius: 4px;
}
.welcome-box a:hover {
  background: var(--fg);
  color: var(--bg);
}

/* forms */
form {
  background: var(--accent);
  padding: 2rem;
  border-radius: 8px;
  max-width: 400px;
  margin: 2rem auto;
}
form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
}
form input[type="text"],
form input[type="password"],
form input[type="email"] {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  background: var(--bg);
  border: 1px solid var(--hover);
  border-radius: 4px;
  color: var(--fg);
}
form button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  margin-top: 1rem;
  background: var(--hover);
  color: var(--fg);
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
form button:hover {
  background: var(--fg);
  color: var(--bg);
}

/* error messages */
.error-list {
  background: var(--error-bg);
  color: var(--error-fg);
  padding: 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}
.error-list li {
  margin-bottom: 0.5rem;
}

/* large textarea for PGP key & encrypted blob */
textarea {
  width: 100%;
  min-height: 200px;
  background: var(--accent);
  color: var(--fg);
  border: 1px solid var(--hover);
  padding: 0.5rem;
  border-radius: 4px;
  font-family: monospace;
}