:root {
  --bg: #0e0f13;
  --panel: #15171d;
  --panel2: #1c1f27;
  --line: #272b35;
  --fg: #e8e8ee;
  --muted: #8a8d99;
  --accent: #6c8cff;
  --good: #43b581;
  --bad: #ff5a6e;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.5 system-ui, sans-serif; }

header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.8rem 1.2rem; border-bottom: 1px solid var(--line);
}
.brand { font-size: 1.3rem; font-weight: 700; letter-spacing: 0.03em; }
.brand span { color: var(--accent); margin-left: 0.4rem; font-weight: 500; }
.cust { font-size: 0.8rem; color: var(--muted); display: flex; gap: 0.5rem; align-items: center; }
.cust select { background: var(--panel2); color: var(--fg); border: 1px solid var(--line); border-radius: 8px; padding: 0.4rem 0.6rem; font-size: 0.9rem; }

nav#tabs { display: flex; gap: 0.3rem; padding: 0.6rem 1.2rem 0; border-bottom: 1px solid var(--line); }
nav#tabs button { background: none; border: none; color: var(--muted); padding: 0.55rem 0.9rem; border-radius: 8px 8px 0 0; cursor: pointer; font-size: 0.92rem; }
nav#tabs button.active { color: var(--fg); background: var(--panel); border: 1px solid var(--line); border-bottom: none; }

main { padding: 1.4rem 1.2rem; max-width: 1000px; margin: 0 auto; }
.tab { display: none; }
.tab.active { display: block; }
.muted { color: var(--muted); }
.status { color: var(--muted); font-size: 0.85rem; min-height: 1.2em; }

/* Talk */
.talk-wrap { text-align: center; padding: 2rem 0; }
.call { width: 150px; height: 150px; border-radius: 50%; border: none; background: var(--accent); color: #fff; font-size: 1.05rem; font-weight: 600; cursor: pointer; transition: background .2s, box-shadow .2s; }
.call:disabled { background: #3a3d49; cursor: not-allowed; }
.call.live { background: var(--bad); animation: pulse 1.5s infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(255,90,110,.5)} 70%{box-shadow:0 0 0 24px rgba(255,90,110,0)} 100%{box-shadow:0 0 0 0 rgba(255,90,110,0)} }
.hint { color: var(--muted); font-size: 0.85rem; max-width: 460px; margin: 1.2rem auto 0; }

/* Metrics */
.metrics { display: flex; gap: 0.8rem; flex-wrap: wrap; margin-bottom: 1.2rem; }
.metric { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 0.8rem 1.1rem; min-width: 120px; }
.metric .v { font-size: 1.5rem; font-weight: 700; }
.metric .k { color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; }

/* Calls */
.calls-layout { display: grid; grid-template-columns: 320px 1fr; gap: 1rem; }
.call-list { list-style: none; margin: 0; padding: 0; max-height: 60vh; overflow: auto; }
.call-list li { padding: 0.7rem 0.9rem; border: 1px solid var(--line); border-radius: 10px; margin-bottom: 0.5rem; cursor: pointer; background: var(--panel); }
.call-list li:hover { border-color: var(--accent); }
.call-list li.sel { border-color: var(--accent); background: var(--panel2); }
.call-list .when { font-size: 0.8rem; color: var(--muted); }
.call-list .sum { font-size: 0.85rem; margin-top: 0.2rem; }
.call-detail { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 1rem; max-height: 60vh; overflow: auto; }
.turn { margin-bottom: 0.7rem; }
.turn .role { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; }
.turn.user .role { color: var(--accent); }

/* Config form */
#configForm { display: flex; flex-direction: column; gap: 0.8rem; max-width: 760px; }
#configForm label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.85rem; color: var(--muted); }
#configForm input, #configForm textarea { background: var(--panel2); color: var(--fg); border: 1px solid var(--line); border-radius: 8px; padding: 0.55rem 0.7rem; font: inherit; }
#configForm textarea { resize: vertical; }
.row { display: flex; align-items: center; gap: 0.8rem; }
button[type=submit], #loadGenerated { background: var(--accent); color: #fff; border: none; border-radius: 8px; padding: 0.6rem 1rem; cursor: pointer; font: inherit; }
#loadGenerated { background: var(--panel2); border: 1px solid var(--line); }

/* Knowledge */
.kgroup { margin-bottom: 1.6rem; }
.kgroup h3 { margin: 0 0 0.6rem; }
.kcard { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 0.7rem 0.9rem; margin-bottom: 0.5rem; }
.kcard .t { font-weight: 600; }
.kcard .s { color: var(--muted); font-size: 0.85rem; }