:root {
  --bg: #0f1420;
  --panel: #171e2e;
  --panel2: #1f2940;
  --accent: #4f8cff;
  --accent2: #2bd4a4;
  --text: #e8edf6;
  --muted: #8a96ad;
  --danger: #ff5c6c;
  --radius: 12px;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg); color: var(--text); height: 100vh; display: flex; flex-direction: column;
}
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 20px; background: var(--panel); border-bottom: 1px solid #243049;
}
.brand { font-size: 1.25rem; font-weight: 700; letter-spacing: .5px; }
.token-box { display: flex; align-items: center; gap: 6px; }
.token-box input {
  background: var(--panel2); border: 1px solid #2c3a59; color: var(--text);
  padding: 7px 10px; border-radius: 8px; width: 190px;
}
.token-box button { background: var(--panel2); border: 1px solid #2c3a59; border-radius: 8px;
  color: var(--text); padding: 7px 9px; cursor: pointer; }
.health { font-size: 1.2rem; color: var(--muted); }
.health.ok { color: var(--accent2); }
.health.ko { color: var(--danger); }

.layout { flex: 1; display: grid; grid-template-columns: 340px 1fr; gap: 16px; padding: 16px; overflow: hidden; }
.panel { background: var(--panel); border: 1px solid #243049; border-radius: var(--radius);
  padding: 16px; display: flex; flex-direction: column; overflow: hidden; }
.panel h2 { margin: 0 0 12px; font-size: 1rem; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }

.docs form { display: flex; flex-direction: column; gap: 8px; }
.docs input, .docs select, .chat-controls select {
  background: var(--panel2); border: 1px solid #2c3a59; color: var(--text);
  padding: 9px 10px; border-radius: 8px; font-size: .9rem;
}
button { cursor: pointer; }
.docs button[type=submit] { background: var(--accent); border: none; color: #fff;
  padding: 10px; border-radius: 8px; font-weight: 600; }
.status { font-size: .82rem; color: var(--muted); margin: 8px 0; min-height: 18px; }
.doc-list { list-style: none; margin: 8px 0 0; padding: 0; overflow-y: auto; }
.doc-list li { background: var(--panel2); border-radius: 8px; padding: 9px 11px; margin-bottom: 7px;
  font-size: .85rem; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.doc-list .meta { color: var(--muted); font-size: .75rem; }
.badge { font-size: .7rem; padding: 2px 7px; border-radius: 20px; }
.badge.indexed { background: rgba(43,212,164,.16); color: var(--accent2); }
.badge.processing { background: rgba(79,140,255,.16); color: var(--accent); }
.badge.error { background: rgba(255,92,108,.16); color: var(--danger); }
.del { background: none; border: none; color: var(--danger); font-size: 1rem; }
.cat-select {
  margin-top: 7px; width: 100%; background: var(--bg); color: var(--text);
  border: 1px solid #2c3a59; border-radius: 7px; padding: 5px 7px; font-size: .78rem;
}
.cat-select:hover { border-color: var(--accent); }

.chat { position: relative; }
.chat-controls { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.chat-controls button { background: var(--panel2); border: 1px solid #2c3a59; color: var(--text);
  padding: 9px 12px; border-radius: 8px; }
.mic.recording { background: var(--danger); color: #fff; border-color: var(--danger); }
.messages { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 14px; padding-right: 6px; }
.msg { background: var(--panel2); border-radius: var(--radius); padding: 14px 16px; }
.msg .q { color: var(--accent); font-weight: 600; margin-bottom: 8px; }
.msg .a { line-height: 1.55; white-space: pre-wrap; }
.msg .sources { margin-top: 10px; font-size: .8rem; color: var(--muted); }
.msg .sources b { color: var(--text); }
.msg .actions { margin-top: 12px; display: flex; gap: 8px; flex-wrap: wrap; }
.msg .actions button { background: #233153; border: 1px solid #31436b; color: var(--text);
  padding: 6px 10px; border-radius: 7px; font-size: .8rem; }
.ask-form { display: flex; gap: 8px; margin-top: 12px; }
.ask-form input { flex: 1; background: var(--panel2); border: 1px solid #2c3a59; color: var(--text);
  padding: 12px 14px; border-radius: 8px; font-size: .95rem; }
.ask-form button { background: var(--accent); border: none; color: #fff; padding: 12px 20px;
  border-radius: 8px; font-weight: 600; }
.thinking { color: var(--muted); font-style: italic; }
@media (max-width: 820px) { .layout { grid-template-columns: 1fr; } }