:root {
  --navy: #1C1712;
  --navy-light: #2E2620;
  --gold: #C3652B;
  --gold-light: #DE8A52;
  --bg: #FAF7F2;
  --card: #FFFFFF;
  --border: #E7E0D6;
  --text: #2B2622;
  --muted: #7A7269;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Khand', sans-serif;
  background: var(--bg);
  color: var(--text);
}
.topbar {
  background: var(--navy);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar .brand { font-size: 22px; font-weight: 600; color: var(--gold-light); }
.topbar button { background: var(--gold); color: #fff; border: none; padding: 8px 16px; border-radius: 6px; cursor: pointer; font-family: inherit; font-size: 15px; }
.container { max-width: 1100px; margin: 0 auto; padding: 24px; }
.auth-card { max-width: 420px; margin: 60px auto; background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 32px; }
.auth-card h2 { margin-top: 0; }
.auth-card input { width: 100%; padding: 10px 12px; margin-bottom: 12px; border: 1px solid var(--border); border-radius: 6px; font-family: inherit; font-size: 15px; }
.auth-card button { width: 100%; padding: 10px; background: var(--gold); color: #fff; border: none; border-radius: 6px; font-size: 16px; cursor: pointer; }
.auth-toggle { text-align: center; margin-top: 12px; color: var(--muted); cursor: pointer; }
.error { color: #B3261E; margin-bottom: 12px; font-size: 14px; }
.layout { display: grid; grid-template-columns: 280px 1fr; gap: 24px; }
.panel { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.curriculum-item { padding: 10px 12px; border-radius: 6px; cursor: pointer; margin-bottom: 6px; }
.curriculum-item:hover, .curriculum-item.active { background: var(--bg); border: 1px solid var(--gold); }
.chapter { margin-bottom: 16px; padding: 14px; border: 1px solid var(--border); border-radius: 8px; }
.chapter h4 { margin: 0 0 8px; }
.topic { padding: 8px 10px; border-radius: 6px; cursor: pointer; margin-bottom: 4px; background: var(--bg); }
.topic:hover, .topic.active { border: 1px solid var(--gold); }
.small-form { display: flex; gap: 8px; margin-top: 10px; }
.small-form input { flex: 1; padding: 8px; border: 1px solid var(--border); border-radius: 6px; font-family: inherit; }
.small-form button { padding: 8px 14px; background: var(--navy); color: #fff; border: none; border-radius: 6px; cursor: pointer; font-family: inherit; }
.ai-buttons { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.ai-buttons button { padding: 8px 14px; border: 1px solid var(--gold); background: #fff; color: var(--gold); border-radius: 6px; cursor: pointer; font-family: inherit; }
.ai-buttons button:hover { background: var(--gold); color: #fff; }
.ai-output { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 16px; margin-top: 12px; white-space: pre-wrap; line-height: 1.5; }
.safety-badge { display: inline-block; font-size: 12px; padding: 3px 8px; border-radius: 4px; margin-top: 8px; margin-right: 6px; background: var(--gold-light); color: #fff; }
.content-item { padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; margin-bottom: 6px; display: flex; justify-content: space-between; align-items: center; }
.content-item button { background: var(--navy); color: #fff; border: none; padding: 6px 10px; border-radius: 4px; cursor: pointer; font-family: inherit; }
.content-item a { color: var(--gold); text-decoration: none; }
.muted { color: var(--muted); font-size: 14px; }
label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.field { margin-bottom: 12px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; background: var(--navy); color: #fff; font-size: 12px; margin-left: 8px; }