:root {
  --accent: #4a7c59;
  --bg: #eaeaea;
  --container-bg: #f9f9f9;
  --text: #333;
  --heading: #222;
  --caption: #666;
  --link-bg: #e3eee7;
  --link-hover-bg: #cde1d3;
}

body {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 1.05rem;
  letter-spacing: 0.2px;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

h1,
h2 {
  color: var(--heading);
}

a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  color: #2f5235;
}

.link-group a {
  display: inline-block;
  margin-right: 1rem;
  margin-bottom: 0.5rem;
  background-color: var(--link-bg);
  color: var(--accent);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  text-decoration: none;
  transition:
    background 0.2s,
    transform 0.2s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.link-group a:hover {
  background-color: var(--link-hover-bg);
}

.container {
  background-color: var(--container-bg);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

section {
  margin-bottom: 3rem;
}

h2 {
  border-bottom: 2px dotted var(--accent);
  padding-bottom: 0.3rem;
  margin-top: 2rem;
}

ul {
  padding-left: 1.2rem;
}

ul li {
  margin-bottom: 1rem;
}

figure {
  margin: 0 auto 2rem auto;
  text-align: center;
  max-width: 100%;
  padding: 0 1rem;
}

figure img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
}

figcaption {
  margin-top: 0.6rem;
  color: var(--caption);
  font-size: 0.9rem;
  font-style: italic;
}

/* Dark Mode Overrides */
body.dark {
  --bg: #121212;
  --container-bg: #1e1e1e;
  --text: #e0e0e0;
  --heading: #ffffff;
  --caption: #aaa;
  --link-bg: #2f4237;
  --link-hover-bg: #3b5448;
}

.dark-mode-toggle {
  display: flex;
  justify-content: center;
  margin: 2rem 0 2rem;
}

#darkModeToggle {
  background: var(--link-bg);
  color: var(--accent);
  border: none;
  padding: 0.6rem 1rem;
  font-size: 1.25rem;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  transition:
    background-color 0.2s,
    transform 0.2s;
}

#darkModeToggle:hover {
  background: var(--link-hover-bg);
  transform: scale(1.05);
}

#darkModeToggle .icon {
  display: inline-block;
  vertical-align: middle;
}

/* Responsive */
@media (max-width: 480px) {
  body {
    font-size: 1rem;
    padding: 0 0.75rem;
  }

  .container {
    padding: 1.5rem 1rem;
    border-radius: 10px;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.2rem;
  }

  .link-group a {
    display: block;
    text-align: center;
    margin-bottom: 0.75rem;
  }

  figure {
    padding: 0;
  }

  figure img {
    border-radius: 8px;
  }
}