:root {
  --navlink-color: #000000;
  --navbar-bg: #f5f5f5;
  --navlink-hover-bg: #e0e0e0;
}

[data-theme="dark"] {
  --navlink-color: #ffffff;
  --navbar-bg: #1e1e1e;
  --navlink-hover-bg: #333333;
}


.guide-layout {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    margin-top: 30px; /* adds space below navbar */
}

.tutorial-progress {
    width: 200px;
    position: sticky;
    top: 100px; /* space below navbar */
    padding-left: 20px; /* <<< adds left margin */
    display: flex;
    flex-direction: column;
    gap: 10px;
}


.tutorial-title {
    margin-bottom: 10px;
    font-size: 20px;
    font-weight: bold;
    color: var(--text-color);
}

.tutorial-list {
  background-color: var(--nav-bg);
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.tutorial-list h2 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--accent-color);
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 0.5rem;
}

.tutorial-list ul {
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tutorial-list li a {
  display: block;
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  transition: all 0.2s ease-in-out;
  position: relative;
}

.tutorial-list li a::before {
  content: "➤";
  margin-right: 0.5rem;
  color: var(--accent-color);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  display: inline-block;
  transform: translateX(-8px);
}

.tutorial-list li a:hover::before {
  opacity: 1;
  transform: translateX(0);
}

.tutorial-list li a:hover {
  background-color: rgba(100, 100, 255, 0.1);
  padding-left: 1.25rem;
  color: var(--accent-color);
}

.tutorial-list li a.active {
  background-color: rgba(25, 118, 210, 0.15);
  color: var(--accent-color);
  font-weight: bold;
  border-left: 4px solid var(--accent-color);
  padding-left: 1rem;
}

.article-content {
    flex: 1;
    max-width: 800px;
}

.article-content h1 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.article-body {
    font-size: 18px;
    line-height: 1.6;
    color: var(--text-color);
}

.nav-buttons {
    margin-top: 40px;
    margin-bottom: 40px;
    display: flex;
    justify-content: space-between;
    gap: 10px;
}

.nav-buttons a {
    background-color: var(--navbar-bg);
    color: var(--navlink-color);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

.nav-buttons a:hover {
    background-color: var(--navlink-hover-bg);
}

/* Mobile */
@media (max-width: 768px) {
    .tutorial-progress {
        display:none;
    }
    .article-content {
        margin-left: 1rem;
        margin-right: 1rem;
    }
}