* { box-sizing: border-box; margin: 0; }
:root {
  --bg: #0f1217; --panel: #161b23; --panel2: #1d2430; --line: #2a3342;
  --text: #dbe2ec; --dim: #8593a6; --accent: #4da3ff; --ok: #3fb96a;
  --warn: #e0a63d; --err: #e05d5d; --user: #24344d; --bot: #1f2a22;
}
body { background: var(--bg); color: var(--text); font: 14px/1.45 system-ui, sans-serif;
       display: flex; flex-direction: column; height: 100vh; }

header { display: flex; justify-content: space-between; align-items: center; gap: 12px;
         padding: 10px 14px; background: var(--panel); border-bottom: 1px solid var(--line);
         flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 15px; }
.brand .sub { color: var(--dim); font-weight: 400; font-size: 12px; margin-left: 8px; }
.controls { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
select, button, input, textarea {
  background: var(--panel2); color: var(--text); border: 1px solid var(--line);
  border-radius: 6px; padding: 6px 10px; font: inherit; }
button { cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: #08111e; font-weight: 600; }
button:disabled { opacity: .45; cursor: default; }
.pill { padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.pill.off { background: #333a46; color: var(--dim); }
.pill.on { background: #123524; color: var(--ok); }
.pill.connecting { background: #3a2f16; color: var(--warn); }
.pill.barge { background: #45201e; color: var(--err); }
.hidden { display: none !important; }

main { display: flex; flex: 1; min-height: 0; }
#left { flex: 1; display: flex; flex-direction: column; min-width: 0;
        border-right: 1px solid var(--line); }
#conversation { flex: 1; overflow-y: auto; padding: 16px; display: flex;
                flex-direction: column; gap: 10px; }
.msg { max-width: 82%; padding: 9px 13px; border-radius: 12px; white-space: pre-wrap; }
.msg.user { background: var(--user); align-self: flex-end; border-bottom-right-radius: 3px; }
.msg.bot  { background: var(--bot); align-self: flex-start; border-bottom-left-radius: 3px; }
.msg .meta { color: var(--dim); font-size: 11px; margin-top: 4px; }
.msg.interrupted { outline: 1px dashed var(--err); }
.msg.interrupted .meta::after { content: " · ⚡ přerušeno"; color: var(--err); }
.live { padding: 8px 16px; color: var(--dim); font-style: italic;
        border-top: 1px solid var(--line); }

#right { width: 46%; min-width: 380px; display: flex; flex-direction: column; background: var(--panel); }
.tabs { display: flex; border-bottom: 1px solid var(--line); }
.tab { border: 0; border-radius: 0; background: transparent; color: var(--dim);
       padding: 9px 16px; border-bottom: 2px solid transparent; }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }
.tabpane { display: none; flex: 1; overflow-y: auto; padding: 10px; min-height: 0; }
.tabpane.active { display: block; }

.toolcard { background: var(--panel2); border: 1px solid var(--line); border-radius: 8px;
            margin-bottom: 8px; overflow: hidden; }
.toolcard .head { display: flex; gap: 8px; align-items: center; padding: 7px 10px; cursor: pointer; }
.toolcard .name { font-weight: 700; color: var(--accent); }
.toolcard .ms { margin-left: auto; color: var(--dim); font-size: 12px; }
.toolcard .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--warn); }
.toolcard.done .dot { background: var(--ok); }
.toolcard.err .dot { background: var(--err); }
.toolcard pre { margin: 0; padding: 8px 10px; font-size: 12px; overflow-x: auto;
                border-top: 1px solid var(--line); white-space: pre-wrap; }
.toolcard pre.args { color: #9ec3ef; }
.toolcard .body { display: none; }
.toolcard.open .body { display: block; }

#evfilter { width: 100%; margin-bottom: 8px; }
.ev { font-size: 12px; padding: 3px 6px; border-radius: 4px; margin-bottom: 2px;
      display: flex; gap: 8px; cursor: pointer; }
.ev:hover { background: var(--panel2); }
.ev .t { color: var(--dim); flex-shrink: 0; }
.ev .type { color: var(--accent); }
.ev.client .type { color: var(--warn); }
.ev.error .type { color: var(--err); }
.ev pre { display: none; width: 100%; font-size: 11px; white-space: pre-wrap;
          color: var(--dim); }
.ev.open { flex-wrap: wrap; }
.ev.open pre { display: block; }

#tab-session textarea { width: 100%; font-size: 12px; font-family: monospace; }
#tab-session label { color: var(--dim); font-size: 12px; display: block; margin-bottom: 4px; }
#tab-session button { margin-top: 8px; }
#sessioninfo { margin-top: 10px; font-size: 11px; color: var(--dim); white-space: pre-wrap; }

footer { display: flex; gap: 18px; padding: 7px 14px; background: var(--panel);
         border-top: 1px solid var(--line); color: var(--dim); font-size: 12px; }