:root {
  --bg: #2a241f;        /* dim torchlit stone */
  --sidebar: #2f1e14;   /* aged wood / tavern wall */
  --panel: #332821;     /* worn leather / spellbook */
  --accent: #c89b3c;    /* torch gold */
  --text: #f2e6c9;      /* parchment */
  --muted: #b8a98a;     /* faded parchment */
  --border: #6b553d;    /* leather seam */
}

* {
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
}

/* Sidebar */

.sidebar {
  width: 260px;
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.sidebar h1 {
  font-size: 1.2rem;
  color: white;
  margin-bottom: .5rem;
}

details {
  background: var(--panel);
  border-radius: 8px;
  padding: .5rem .7rem;
}

summary {
  cursor: pointer;
  font-weight: 600;
  color: white;
  padding: .3rem 0;
}

details ul {
  margin-top: .5rem;
  list-style: none;
}

details a {
  padding: .35rem 0;
  color: var(--muted);
  font-size: .9rem;
}

details a:hover {
  color: white;
  cursor: pointer;
}

/* Main Content */

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

.card {
  background: var(--panel);
  border-radius: 10px;
  padding: 1.5rem;
  border: 1px solid var(--border);
}

.card h2 {
  margin-bottom: .5rem;
}

.card p {
  color: var(--muted);
  line-height: 1.5;
}

/* Mobile */

@media (max-width: 768px) {
  body {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}