:root {
  --navy: #0b2545;
  --navy-2: #13315c;
  --teal: #0f8b8d;
  --teal-2: #0a6c6e;
  --bg: #f3f6fa;
  --panel: #ffffff;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e9f0;
  --ok: #0f9d58;
  --warn: #d97706;
  --bad: #c62828;
  --chip: #e8f1ff;
  --radius: 12px;
  font-family: "Segoe UI", "Inter", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--ink); font-size: 14px; }
a { color: var(--teal-2); }
button { font: inherit; }

.topbar {
  background: linear-gradient(90deg, var(--navy), var(--navy-2));
  color: #fff; display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; height: 56px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .5px; font-size: 16px; }
.brand .logo { width: 30px; height: 30px; border-radius: 8px; background: var(--teal); display: grid; place-items: center; font-weight: 800; color: #fff; }
.brand small { font-weight: 400; opacity: .8; font-size: 12px; margin-left: 6px; }
.topbar .who { display: flex; align-items: center; gap: 14px; font-size: 13px; }
.topbar .who b { font-weight: 600; }
.btn { border: 1px solid transparent; border-radius: 8px; padding: 8px 14px; cursor: pointer; background: var(--teal); color: #fff; font-weight: 600; }
.btn:hover { background: var(--teal-2); }
.btn.ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn.ghost:hover { background: rgba(255,255,255,.1); }
.btn.secondary { background: #fff; color: var(--navy); border-color: var(--line); }
.btn.secondary:hover { background: #f0f4fa; }
.btn.danger { background: var(--bad); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.page { max-width: 1400px; margin: 0 auto; padding: 20px; }
.grid-2 { display: grid; grid-template-columns: minmax(420px, 1.1fr) minmax(380px, 1fr); gap: 20px; align-items: start; }
@media (max-width: 980px) { .grid-2 { grid-template-columns: 1fr; } }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 1px 2px rgba(16,24,40,.04); }
.panel > header { padding: 12px 16px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.panel > header h2 { margin: 0; font-size: 14px; font-weight: 700; color: var(--navy); }
.panel .body { padding: 14px 16px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 12px; }

/* login */
.customers { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.customer { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; cursor: pointer; background: #fff; transition: .15s; }
.customer:hover { border-color: var(--teal); box-shadow: 0 4px 14px rgba(15,139,141,.15); transform: translateY(-1px); }
.customer .name { font-weight: 700; font-size: 15px; color: var(--navy); }
.customer .meta { color: var(--muted); font-size: 12px; margin-top: 4px; line-height: 1.5; }
.customer .tag { display: inline-block; background: var(--chip); color: var(--navy); border-radius: 999px; padding: 2px 8px; font-size: 11px; margin-top: 8px; }

/* chat */
.chat { display: flex; flex-direction: column; height: calc(100vh - 116px); min-height: 560px; }
.messages { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; background: #f9fbfd; border-radius: var(--radius) var(--radius) 0 0; }
.msg { max-width: 86%; padding: 10px 14px; border-radius: 14px; line-height: 1.5; white-space: pre-wrap; word-break: break-word; }
.msg.user { align-self: flex-end; background: var(--navy); color: #fff; border-bottom-right-radius: 4px; }
.msg.assistant { align-self: flex-start; background: #fff; border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.msg.system { align-self: center; background: transparent; color: var(--muted); font-size: 12px; }
.msg .meta { display: block; margin-top: 6px; font-size: 11px; color: var(--muted); }
.msg.user .meta { color: rgba(255,255,255,.7); }
.msg .linkbtn { display: inline-block; margin-top: 8px; padding: 6px 12px; background: var(--teal); color: #fff; border-radius: 8px; text-decoration: none; font-weight: 600; }
.composer { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--line); background: #fff; border-radius: 0 0 var(--radius) var(--radius); }
.composer input { flex: 1; padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px; font: inherit; }
.composer input:focus { outline: 2px solid rgba(15,139,141,.35); border-color: var(--teal); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 12px; border-top: 1px dashed var(--line); background: #fff; }
.chip { border: 1px solid var(--line); background: var(--chip); color: var(--navy); border-radius: 999px; padding: 4px 10px; font-size: 12px; cursor: pointer; }
.chip:hover { border-color: var(--teal); }
.typing { font-size: 12px; color: var(--muted); padding: 0 16px 8px; min-height: 18px; }

/* tabs */
.tabs { display: flex; gap: 4px; padding: 8px 8px 0; border-bottom: 1px solid var(--line); }
.tab { border: none; background: transparent; padding: 8px 12px; cursor: pointer; border-radius: 8px 8px 0 0; color: var(--muted); font-weight: 600; }
.tab.active { color: var(--navy); background: #f0f4fa; }
.tabpane { display: none; padding: 12px 14px; max-height: calc(100vh - 220px); overflow-y: auto; }
.tabpane.active { display: block; }

/* trace */
.turn { border: 1px solid var(--line); border-radius: 10px; margin-bottom: 10px; overflow: hidden; }
.turn > .head { background: #f0f4fa; padding: 8px 12px; font-size: 12px; display: flex; justify-content: space-between; gap: 8px; }
.turn > .head b { color: var(--navy); }
.step { display: grid; grid-template-columns: 62px 1fr auto; gap: 8px; padding: 7px 12px; border-top: 1px solid var(--line); font-size: 12px; align-items: start; }
.step .m { font-weight: 700; color: var(--navy); }
.step .p { color: var(--ink); }
.step .p .path { font-family: ui-monospace, Consolas, monospace; }
.step .p .sum { color: var(--muted); display: block; margin-top: 2px; }
.step .s { text-align: right; white-space: nowrap; color: var(--muted); }
.step.note { background: #fffbea; grid-template-columns: 62px 1fr; }
.step.note .m { color: var(--warn); }
.pill { display: inline-block; border-radius: 999px; padding: 1px 8px; font-size: 11px; font-weight: 700; }
.pill.ok { background: #e6f6ec; color: var(--ok); }
.pill.bad { background: #fdecec; color: var(--bad); }
.pill.warn { background: #fff4e0; color: var(--warn); }
.pill.info { background: var(--chip); color: var(--navy); }

/* tables */
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { padding: 6px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: #f0f4fa; color: var(--navy); font-weight: 700; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* policy */
.policy-doc { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; margin-bottom: 8px; }
.policy-doc .title { font-weight: 700; color: var(--navy); }
.policy-doc .versions { display: flex; gap: 6px; margin-top: 6px; flex-wrap: wrap; }
.ver { border: 1px solid var(--line); border-radius: 8px; padding: 4px 10px; cursor: pointer; background: #fff; font-size: 12px; }
.ver.active { background: var(--teal); color: #fff; border-color: var(--teal); cursor: default; }
.scenario { background: #f0f9f9; border: 1px dashed var(--teal); border-radius: 10px; padding: 10px 12px; font-size: 12px; line-height: 1.6; }
.scenario code { background: #fff; border: 1px solid var(--line); border-radius: 4px; padding: 1px 5px; }

.status-row { display: flex; flex-wrap: wrap; gap: 8px; }
.status-item { border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; font-size: 12px; background: #fff; }
.status-item .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; background: var(--muted); }
.status-item.ok .dot { background: var(--ok); }
.status-item.bad .dot { background: var(--bad); }
.status-item.warn .dot { background: var(--warn); }

/* forms */
.form { display: grid; gap: 12px; max-width: 520px; }
.form label { display: grid; gap: 4px; font-weight: 600; font-size: 13px; }
.form input[type=text], .form select, .form textarea { padding: 10px; border: 1px solid var(--line); border-radius: 8px; font: inherit; }
.form .check { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.alert { border-radius: 10px; padding: 12px 14px; margin-top: 12px; }
.alert.ok { background: #e6f6ec; color: #0b6b3a; }
.alert.bad { background: #fdecec; color: #8a1c1c; }
.hero { background: linear-gradient(135deg, var(--navy), var(--teal)); color: #fff; border-radius: var(--radius); padding: 22px 24px; margin-bottom: 20px; }
.hero h1 { margin: 0 0 6px; font-size: 22px; }
.hero p { margin: 0; opacity: .9; }