:root {
  --bg: #f5f7f9; --card: #ffffff; --text: #0f1419; --muted: #5b6270; --subtle: #8b93a1;
  --line: #e3e7ec; --soft: #eef1f4; --primary: #0f1419; --on-primary: #ffffff;
  --good: #0f9d7a; --warn: #b45309; --bad: #dc2626;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000; --card: #12161c; --text: #f2f4f7; --muted: #9aa3b2; --subtle: #6b7482;
    --line: #232833; --soft: #1a1f27; --primary: #f2f4f7; --on-primary: #000000;
    --good: #2fd3a6; --warn: #f59e0b; --bad: #f87171;
  }
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.5 Inter, -apple-system, "Segoe UI", sans-serif; }
[hidden] { display: none !important; }
a { color: inherit; }
h1 { font-size: 22px; margin: 0 0 4px; letter-spacing: -0.2px; }
h2 { font-size: 15px; margin: 28px 0 10px; }
p { margin: 0 0 10px; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.error { color: var(--bad); min-height: 1.2em; }

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 15px; }
.mark { width: 28px; height: 28px; border-radius: 8px; background: var(--primary); color: var(--on-primary);
  display: inline-flex; align-items: center; justify-content: center; font-weight: 700; }

.gate { min-height: 100%; display: flex; align-items: center; justify-content: center; padding: 20px; }
.gate-card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 28px; max-width: 380px; width: 100%; }
.gate-card p { color: var(--muted); margin: 14px 0; }

.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100%; }
.side { border-right: 1px solid var(--line); padding: 18px 12px; display: flex; flex-direction: column; gap: 18px;
  position: sticky; top: 0; height: 100vh; }
.side .brand { padding: 0 8px; }
nav { display: flex; flex-direction: column; gap: 2px; }
nav a { text-decoration: none; padding: 8px 10px; border-radius: 10px; color: var(--muted); font-weight: 500; }
nav a:hover { background: var(--soft); color: var(--text); }
nav a.on { background: var(--soft); color: var(--text); font-weight: 600; }
.who { margin-top: auto; padding: 0 8px; font-size: 12.5px; color: var(--muted); word-break: break-all; }
.view { padding: 26px 30px 60px; max-width: 1180px; width: 100%; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-top: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px; }
.stat .label { color: var(--muted); font-size: 12.5px; }
.stat .value { font-size: 26px; font-weight: 700; letter-spacing: -0.5px; margin-top: 2px; }
.stat .note { color: var(--subtle); font-size: 12px; margin-top: 2px; }

.bar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 14px 0; }
input, select, textarea { font: inherit; color: var(--text); background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; padding: 8px 11px; outline: none; }
input:focus, select:focus, textarea:focus { border-color: var(--text); }
textarea { width: 100%; min-height: 84px; resize: vertical; }
label { display: block; font-size: 12.5px; color: var(--muted); margin: 10px 0 4px; }
.grow { flex: 1; min-width: 180px; }

.btn { font: inherit; font-weight: 600; border-radius: 999px; padding: 8px 15px; border: 1px solid var(--line);
  background: var(--card); color: var(--text); cursor: pointer; }
.btn:hover { border-color: var(--subtle); }
.btn.primary { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
.btn.danger { color: var(--bad); }
.btn:disabled { opacity: .5; cursor: default; }
.link { background: none; border: 0; padding: 0; font: inherit; color: var(--muted); text-decoration: underline; cursor: pointer; }

.table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line);
  border-radius: 16px; overflow: hidden; display: table; }
.table th, .table td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { font-size: 12px; color: var(--muted); font-weight: 600; background: var(--soft); }
.table tr:last-child td { border-bottom: 0; }
.table tr.go { cursor: pointer; }
.table tr.go:hover td { background: var(--soft); }
.scroll { overflow-x: auto; }
.empty { color: var(--muted); padding: 22px; text-align: center; background: var(--card); border: 1px dashed var(--line); border-radius: 16px; }

.pill { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--soft); color: var(--muted); }
.pill.good { color: var(--good); } .pill.warn { color: var(--warn); } .pill.bad { color: var(--bad); }

.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 6px 12px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; word-break: break-word; }
.back { display: inline-block; margin-bottom: 12px; color: var(--muted); text-decoration: none; }

.chat { display: flex; flex-direction: column; gap: 10px; }
.msg { max-width: 82%; padding: 10px 13px; border-radius: 14px; white-space: pre-wrap; word-break: break-word; border: 1px solid var(--line); background: var(--card); }
.msg.user { align-self: flex-end; background: var(--soft); }
.msg .when { display: block; font-size: 11px; color: var(--subtle); margin-top: 4px; }

.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); background: var(--primary); color: var(--on-primary);
  padding: 10px 16px; border-radius: 12px; font-weight: 500; box-shadow: 0 8px 30px rgba(0,0,0,.25); z-index: 10; }

@media (max-width: 820px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  nav { flex-direction: row; flex-wrap: wrap; }
  .who { margin-top: 0; }
  .view { padding: 18px 16px 50px; }
  .cols { grid-template-columns: 1fr; }
}