:root {
  --bg: #f4f5f7; --panel: #fff; --border: #e3e5e8; --text: #1f2328; --muted: #6b7280;
  --accent: #0f766e; --accent-soft: #e6f4f2; --in: #fff; --out: #dcf3ee; --ai: #eef0ff; --danger: #b42318;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111418; --panel: #1a1e23; --border: #2c3138; --text: #e6e8eb; --muted: #9aa1ab;
    --accent: #2dd4bf; --accent-soft: #123a36; --in: #22272e; --out: #133b35; --ai: #252a4a; --danger: #f97066; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: 1px solid var(--border); background: var(--panel); border-radius: 6px; padding: 6px 12px; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.small { padding: 2px 8px; font-size: 12px; }
input, select, textarea { border: 1px solid var(--border); background: var(--panel); border-radius: 6px; padding: 6px 8px; width: 100%; }
textarea { resize: vertical; }
label { display: block; font-size: 12px; color: var(--muted); margin: 10px 0 4px; }
h2 { margin: 0 0 16px; font-size: 18px; }
h3 { margin: 20px 0 8px; font-size: 15px; }
.muted { color: var(--muted); }
.error { color: var(--danger); }

.login { max-width: 340px; margin: 12vh auto; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 24px; }
.login button { width: 100%; margin-top: 16px; }

.shell { display: grid; grid-template-columns: 200px 1fr; height: 100vh; }
nav { background: var(--panel); border-right: 1px solid var(--border); padding: 16px 10px; display: flex; flex-direction: column; gap: 2px; }
nav .brand { font-weight: 700; font-size: 17px; padding: 0 8px 14px; color: var(--accent); }
nav a { padding: 7px 10px; border-radius: 6px; cursor: pointer; color: var(--text); text-decoration: none; }
nav a.active, nav a:hover { background: var(--accent-soft); }
nav .spacer { flex: 1; }
main { overflow: auto; padding: 20px; }
main.inbox { padding: 0; display: grid; grid-template-columns: 340px 1fr; overflow: hidden; }

.list { border-right: 1px solid var(--border); background: var(--panel); display: flex; flex-direction: column; min-height: 0; }
.filters { padding: 10px; display: grid; gap: 6px; border-bottom: 1px solid var(--border); }
.filters .row { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.leads { overflow: auto; flex: 1; }
.lead { padding: 10px 12px; border-bottom: 1px solid var(--border); cursor: pointer; }
.lead:hover, .lead.active { background: var(--accent-soft); }
.lead .top { display: flex; justify-content: space-between; gap: 8px; }
.lead .name { font-weight: 600; }
.chip { display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 10px; margin: 3px 3px 0 0; color: #fff; background: #6b7280; }
.chip.stage { background: transparent; color: var(--muted); border: 1px solid var(--border); }

.chat { display: grid; grid-template-rows: auto 1fr auto; min-height: 0; }
.chat header { padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--panel); display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: end; }
.chat header .who { flex: 1 1 200px; }
.chat header select { width: auto; }
.messages { overflow: auto; padding: 16px; display: flex; flex-direction: column; gap: 6px; }
.msg { max-width: 70%; padding: 7px 10px; border-radius: 8px; background: var(--in); border: 1px solid var(--border); white-space: pre-wrap; word-wrap: break-word; }
.msg.out { align-self: flex-end; background: var(--out); }
.msg.ai { background: var(--ai); }
.msg.failed { border-color: var(--danger); }
.msg .meta { font-size: 11px; color: var(--muted); margin-top: 4px; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.msg img { max-width: 260px; border-radius: 6px; display: block; }
.composer { display: flex; gap: 8px; padding: 10px; border-top: 1px solid var(--border); background: var(--panel); }
.composer textarea { height: 44px; }
.banner { padding: 6px 16px; background: #fff4e5; color: #8a4b00; font-size: 13px; }
.empty { display: grid; place-items: center; color: var(--muted); height: 100%; }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px; }
.kpi .v { font-size: 26px; font-weight: 700; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 12px; color: var(--muted); font-weight: 600; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.bar { height: 6px; background: var(--accent); border-radius: 3px; }
.actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.tabs { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.tabs button.active { background: var(--accent-soft); border-color: var(--accent); }
pre.report { white-space: pre-wrap; background: var(--bg); padding: 12px; border-radius: 8px; }

@media (max-width: 800px) {
  .shell { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  nav { flex-direction: row; overflow-x: auto; padding: 8px; }
  nav .brand, nav .spacer { display: none; }
  main.inbox { grid-template-columns: 1fr; }
  .list { max-height: 40vh; }
}