:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --text: #e7e9ee;
  --muted: #9aa3b2;
  --accent: #4c8bf5;
  --bot: #1e222b;
  --user: #2a4a7f;
  --border: #2a2f3a;
  --ok: #34c759;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6fa; --panel: #ffffff; --panel-2: #f0f2f6; --text: #1a1d24;
    --muted: #5a6472; --bot: #eef1f6; --user: #d6e4ff; --border: #e2e6ee;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text);
}

#app { display: flex; flex-direction: column; height: 100vh; max-width: 820px;
  margin: 0 auto; }

#bar {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 600; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  background: var(--ok); margin-right: 6px; }
.status { margin-left: auto; color: var(--muted); font-size: 13px; }
.gear { background: none; border: none; color: var(--muted); cursor: pointer;
  font-size: 18px; padding: 4px 8px; border-radius: 8px; }
.gear:hover { background: var(--panel-2); }
.settings-btn { margin-left: 12px; background: var(--accent); color: #fff;
  border: none; cursor: pointer; font-size: 13px; font-weight: 600;
  padding: 7px 12px; border-radius: 8px; white-space: nowrap; }
.settings-btn:hover { filter: brightness(1.08); }

#tabs { display: flex; gap: 4px; padding: 8px 16px 0; background: var(--panel);
  border-bottom: 1px solid var(--border); }
.tab { background: none; border: none; color: var(--muted); cursor: pointer;
  font-size: 14px; font-weight: 600; padding: 8px 14px; border-radius: 8px 8px 0 0;
  border-bottom: 2px solid transparent; }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

#chatView { flex: 1; display: flex; flex-direction: column; min-height: 0; }
#toolsView { flex: 1; overflow-y: auto; padding: 16px; display: flex;
  flex-direction: column; gap: 14px; }
#toolsView.hidden, #chatView.hidden { display: none; }

.tool-card { border: 1px solid var(--border); border-radius: 12px;
  background: var(--panel); padding: 14px 16px; }
.tool-card h3 { margin: 0 0 6px; font-size: 15px; }
.tool-card button { padding: 9px 13px; border: none; border-radius: 8px;
  background: var(--accent); color: #fff; font-weight: 600; cursor: pointer; }
.tool-card button.ghost { background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); margin: 6px 0; }
.tool-card input, .tool-card select, .tool-card textarea { padding: 8px 10px;
  border-radius: 8px; border: 1px solid var(--border); background: var(--panel-2);
  color: var(--text); font-size: 14px; width: 100%; margin-top: 6px; }
.tool-out { margin-top: 10px; font-size: 12px; color: var(--muted);
  max-height: 260px; overflow: auto; white-space: pre-wrap; word-break: break-all; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.inv-items { width: 100%; border-collapse: collapse; margin-top: 10px;
  font-size: 13px; }
.inv-items th { text-align: left; color: var(--muted); font-size: 11px;
  padding: 4px; }
.inv-items td { padding: 2px; }
.inv-items input { margin-top: 0; }
.inv-del { background: none !important; border: none !important;
  color: var(--muted) !important; cursor: pointer; font-size: 16px; padding: 0 6px; }

#chat { flex: 1; overflow-y: auto; padding: 20px 16px; display: flex;
  flex-direction: column; gap: 14px; }
.msg { display: flex; }
.msg.user { justify-content: flex-end; }
.bubble {
  max-width: 76%; padding: 11px 14px; border-radius: 14px;
  line-height: 1.5; white-space: pre-wrap; word-wrap: break-word;
}
.msg.bot .bubble { background: var(--bot); border-bottom-left-radius: 4px; }
.msg.user .bubble { background: var(--user); border-bottom-right-radius: 4px; }
.sources { margin-top: 8px; font-size: 12px; color: var(--muted); }
.sources a { color: var(--accent); text-decoration: none; }
.sources .web { color: var(--ok); }
.typing { font-style: italic; color: var(--muted); }

#composer { display: flex; gap: 8px; padding: 12px 16px;
  border-top: 1px solid var(--border); background: var(--panel); }
#input { flex: 1; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--panel-2);
  color: var(--text); font-size: 15px; }
#input:focus { outline: 2px solid var(--accent); }
#send { padding: 0 18px; border: none; border-radius: 10px;
  background: var(--accent); color: #fff; font-weight: 600; cursor: pointer; }
#send:disabled { opacity: .5; cursor: default; }

.drawer { position: fixed; top: 0; right: 0; width: 340px; height: 100vh;
  background: var(--panel); border-left: 1px solid var(--border);
  padding: 16px 16px 56px; overflow-y: auto;
  box-shadow: -8px 0 24px rgba(0,0,0,.25);
  display: flex; flex-direction: column; gap: 8px; }
.drawer.hidden { display: none; }
.drawer-head { display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 8px; }
.drawer label { font-size: 13px; color: var(--muted); margin-top: 6px; }
.drawer input, .drawer textarea, .drawer select { width: 100%; padding: 9px 11px;
  border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text); font-size: 14px; }
.drawer textarea { display: block; resize: vertical; min-height: 92px;
  line-height: 1.45; }
.drawer button { padding: 9px 12px; border: none; border-radius: 8px;
  background: var(--accent); color: #fff; cursor: pointer; font-weight: 600;
  flex-shrink: 0; }
.switch { display: flex; align-items: center; gap: 8px; cursor: pointer;
  margin-top: 4px; color: var(--text); font-size: 14px; }
.switch input { width: 18px; height: 18px; flex-shrink: 0; accent-color: var(--accent); }
.drawer button.ghost { background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); }
.row button.ghost { flex: 1; }
.locklist { display: flex; flex-direction: column; gap: 5px; margin: 6px 0 8px; }
.locked-area { opacity: .5; pointer-events: none; }
.drawer input:disabled, .drawer select:disabled, .seg button:disabled {
  opacity: .5; cursor: not-allowed; }
.row { display: flex; gap: 6px; }
.row input { flex: 1; }
.hint { font-size: 12px; color: var(--muted); white-space: pre-wrap; }
hr { border: none; border-top: 1px solid var(--border); width: 100%; }

.sect { font-size: 13px; color: var(--muted); text-transform: uppercase;
  letter-spacing: .04em; }
.models { display: flex; flex-direction: column; gap: 6px; }
.model { border: 1px solid var(--border); border-radius: 10px; padding: 9px 11px;
  background: var(--panel-2); cursor: pointer; }
.model:hover { border-color: var(--accent); }
.model.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.model .top { display: flex; justify-content: space-between; align-items: center; }
.model .name { font-weight: 600; font-size: 14px; }
.model .badge { font-size: 11px; padding: 2px 7px; border-radius: 999px;
  background: var(--border); color: var(--text); }
.model .badge.ok { background: rgba(52,199,89,.18); color: var(--ok); }
.model .badge.rec { background: rgba(76,139,245,.18); color: var(--accent); }
.model .sub { font-size: 12px; color: var(--muted); margin-top: 2px; }
.seg { display: flex; gap: 4px; }
.seg button { flex: 1; padding: 8px 6px; font-size: 12px; font-weight: 600;
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px; cursor: pointer; }
.seg button.active { background: var(--accent); border-color: var(--accent);
  color: #fff; }
.progress.hidden { display: none; }
.bar { height: 8px; border-radius: 6px; background: var(--border);
  overflow: hidden; margin: 6px 0 4px; }
.bar span { display: block; height: 100%; width: 0; background: var(--accent);
  transition: width .25s; }