:root {
  --bg: #FBF5E8;
  --card: #FFFFFF;
  --gold: #8B5E10;
  --gold-deep: #5C3D08;
  --ink: #2A1B5E;
  --muted: #9D8FB5;
  --border: #E6D9BD;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
}
header {
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
header .brand h1 {
  margin: 0;
  font-size: 22px;
  color: var(--gold);
  letter-spacing: 0.5px;
}
header .brand .tagline {
  color: var(--gold-deep);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin: 2px 0 0;
}
header nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
header nav .tab {
  padding: 8px 14px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--gold-deep);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.3px;
}
header nav .tab:hover { background: rgba(139, 94, 16, 0.06); }
header nav .tab.active {
  background: var(--gold);
  color: white;
  border-color: var(--gold);
}
main {
  max-width: 880px;
  margin: 24px auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.card { background: var(--card); border-radius: 16px; border: 1px solid var(--border); padding: 24px; }
.card h2 { margin-top: 0; color: var(--gold); }
label { display: block; font-size: 13px; color: var(--gold-deep); margin-top: 12px; }
input, select, textarea {
  width: 100%; padding: 10px 12px; margin-top: 4px;
  border: 1px solid var(--border); border-radius: 8px; font-size: 15px; color: var(--ink); background: white;
}
button.primary {
  margin-top: 16px; padding: 12px 20px; border: none; background: var(--gold); color: white;
  border-radius: 8px; font-weight: 600; font-size: 15px; cursor: pointer; letter-spacing: 0.3px;
}
button.primary:disabled { opacity: 0.5; cursor: not-allowed; }
button.link { background: none; border: none; color: var(--gold); cursor: pointer; }
a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }
.center { text-align: center; }
.dropzone {
  border: 2px dashed var(--border); border-radius: 12px; padding: 40px; text-align: center;
  color: var(--muted); cursor: pointer; transition: all 0.15s ease;
}
.dropzone.dragging { border-color: var(--gold); background: rgba(139, 94, 16, 0.05); color: var(--gold-deep); }
.row { margin-top: 16px; }
.file-list { list-style: none; padding: 0; margin: 16px 0; }
.file-list li {
  padding: 10px 14px; border-radius: 8px; background: #F3E9D4;
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 6px; font-size: 14px;
}
.file-list .status { font-size: 12px; color: var(--muted); }
.file-list .status.done { color: #3FA76A; }
.file-list .status.err { color: #C2443C; }
.error { color: #C2443C; font-size: 13px; min-height: 1.2em; margin-top: 8px; }
.hint { color: var(--muted); font-size: 13px; line-height: 1.5; }
.chat-log {
  background: #FAF6EC; border: 1px solid var(--border); border-radius: 12px;
  padding: 12px; max-height: 360px; overflow-y: auto; min-height: 120px; font-size: 14px; line-height: 1.5;
}
.chat-log .turn { padding: 8px 0; border-bottom: 1px dashed var(--border); }
.chat-log .turn:last-child { border-bottom: none; }
.chat-log .role { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--gold-deep); }
.chat-log .body { white-space: pre-wrap; }
.chat-log .citations { font-size: 11px; color: var(--muted); margin-top: 4px; }
.chat-form { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.chat-form textarea { resize: vertical; }

/* Training-manual rendered markdown */
.rules-content { font-size: 14px; line-height: 1.65; color: var(--ink); }
.rules-content h1, .rules-content h2, .rules-content h3, .rules-content h4 {
  color: var(--gold); margin-top: 28px; margin-bottom: 12px;
}
.rules-content h1 { font-size: 24px; }
.rules-content h2 { font-size: 19px; }
.rules-content h3 { font-size: 16px; color: var(--gold-deep); }
.rules-content h4 { font-size: 14px; color: var(--gold-deep); text-transform: uppercase; letter-spacing: 0.5px; }
.rules-content code {
  background: #F3E9D4; padding: 2px 6px; border-radius: 4px; font-size: 13px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}
.rules-content pre {
  background: #FAF6EC; border: 1px solid var(--border); border-radius: 8px;
  padding: 14px; overflow-x: auto; line-height: 1.45;
}
.rules-content pre code { background: none; padding: 0; font-size: 13px; }
.rules-content table {
  width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 13px;
}
.rules-content table th, .rules-content table td {
  border: 1px solid var(--border); padding: 8px 12px; text-align: left;
}
.rules-content table th { background: #F3E9D4; color: var(--gold-deep); }
.rules-content blockquote {
  border-left: 3px solid var(--gold); margin: 16px 0; padding: 4px 14px;
  color: var(--gold-deep); background: rgba(139, 94, 16, 0.04);
}
.rules-content ul, .rules-content ol { padding-left: 22px; }
.rules-content hr { border: none; border-top: 1px solid var(--border); margin: 28px 0; }