:root {
  --bg-color: #ffffff;
  --text-color: #000000;
  --link-color: #1a0dab;
  --header-bg: #f1f1f1;
  --footer-bg: #f1f1f1;
}

[data-theme="dark"] {
  --bg-color: #121212;
  --text-color: #ffffff;
  --link-color: #8ab4f8;
  --header-bg: #1f1f1f;
  --footer-bg: #1f1f1f;
}


[data-theme="navy"] {
  --bg-color: #0b1120;
  --text-color: #ffffff;
  --link-color: #4da3ff;
  --header-bg: #162a45;
  --footer-bg: #162a45;
}

.container {
  padding-left: 1em;
  padding-right: 1em;
  max-width: 1000px;
  margin: 0 auto;
  box-sizing: border-box;
}

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

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

a:hover {
  text-decoration: underline;
}

header {
  background-color: var(--header-bg);
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  max-height: 100px;
  width: auto;
  height: auto;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

#theme-selector {
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  font-size: 1rem;
  background-color: var(--bg-color);
  color: var(--text-color);
  border: 1px solid #aaa;
}

footer {
  background-color: var(--footer-bg);
  padding: 1rem;
  font-size: 0.9rem;
}

.features, .get-started {
  padding: 2rem;
}

.features ul {
  list-style: none;
  padding: 0;
}

.features li {
  margin: 0.5rem 0;
}

.button {
  display: inline-block;
  margin: 0.5rem;
  padding: 0.75rem 1.25rem;
  background-color: var(--link-color);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  text-decoration: none;
}

.button:hover {
  background-color: #333;
  color: #fff;
}