:root {
  --bg: #0d0d10; --panel: #15151b; --panel2: #1c1c24; --line: #2a2a35;
  --text: #e8e6e0; --muted: #8e8c96; --gold: #d4af37; --gold2: #b8952c;
  --green: #38c172; --red: #e3342f; --blue: #4aa3ff;
  --mono: ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }
code, pre, .mono, input, .addr, .ladder, .kv { font-family: var(--mono); }

.brand { font-weight: 800; letter-spacing: .14em; font-size: 15px; }
.brand span { color: var(--gold); }
.brand small { color: var(--muted); letter-spacing: .05em; font-weight: 500; margin-left: 6px; }

.topbar { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px; border-bottom: 1px solid var(--line); background: var(--panel); position: sticky; top: 0; z-index: 5; }
.top-right { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.inline { display: inline; }
.pill { font-family: var(--mono); font-size: 12px; padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); }
.pill.ok { color: var(--green); border-color: var(--green); }
.pill.bad { color: var(--red); border-color: var(--red); }
.pill.gold { color: var(--gold); border-color: var(--gold); }

.grid-layout { display: grid; grid-template-columns: 1fr 1.4fr; gap: 16px; padding: 16px 20px; max-width: 1500px; margin: 0 auto; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.card.wide { grid-column: 1 / -1; }
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; gap: 10px; flex-wrap: wrap; }
h2 { margin: 0; font-size: 13px; letter-spacing: .16em; color: var(--gold); }
.hint { color: var(--muted); font-size: 12px; }
.unit { color: var(--muted); font-weight: 400; margin-left: 4px; }
.addr { color: var(--muted); font-size: 12px; word-break: break-all; margin-bottom: 8px; }

.kv { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.kv div { background: var(--panel2); border-radius: 6px; padding: 8px 10px; }
.kv b { display: block; color: var(--muted); font-size: 11px; font-weight: 500; letter-spacing: .06em; text-transform: uppercase; }
.kv span { font-size: 15px; }

.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin-bottom: 10px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
input, select { background: var(--panel2); border: 1px solid var(--line); color: var(--text); padding: 8px 10px; border-radius: 6px; font-size: 14px; }
input:focus, select:focus { outline: none; border-color: var(--gold); }
.price-line { font-family: var(--mono); color: var(--gold); margin: 4px 0 10px; font-size: 13px; }

.btn { background: var(--panel2); color: var(--text); border: 1px solid var(--line); padding: 8px 14px; border-radius: 6px; cursor: pointer; font-weight: 600; letter-spacing: .06em; }
.btn:hover { border-color: var(--gold); }
.btn.gold { background: var(--gold); color: #111; border-color: var(--gold); }
.btn.gold:hover { background: var(--gold2); }
.btn.gold:disabled { background: #3a3324; color: #7a6a3a; border-color: #3a3324; cursor: not-allowed; }
.btn.red { background: #3a1412; border-color: var(--red); color: #ff8a86; }
.btn.ghost { background: transparent; }
.btn.small { padding: 4px 10px; font-size: 12px; }
.actions { display: flex; gap: 12px; align-items: center; margin: 12px 0; }

.calc { background: var(--panel2); border-radius: 8px; padding: 12px; margin-top: 6px; font-family: var(--mono); font-size: 13px; }
.calc-empty { color: var(--muted); }
.calc .need { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
.calc .need div { padding: 8px; border-radius: 6px; border: 1px solid var(--line); }
.calc .fits { border-color: var(--green) !important; }
.calc .short { border-color: var(--red) !important; }
.warn { color: #ffb4b0; font-size: 13px; white-space: pre-line; }
.warn:empty { display: none; }

.ladder { margin-top: 10px; display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 4px; font-size: 12px; }
.rung { display: flex; justify-content: space-between; padding: 4px 8px; border-radius: 4px; background: var(--panel2); border-left: 3px solid var(--line); }
.rung.SELL_XRP { border-left-color: var(--red); }
.rung.BUY_XRP { border-left-color: var(--green); }
.rung.EMPTY { border-left-color: var(--gold); opacity: .8; }
.rung .side { color: var(--muted); }

.bot { border: 1px solid var(--line); border-radius: 8px; padding: 12px; margin-bottom: 12px; background: var(--panel2); }
.bot-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.bot-head .name { font-family: var(--mono); font-weight: 700; color: var(--gold); }
.bot .stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 6px; margin-bottom: 8px; }
.bot .stats div { background: var(--panel); border-radius: 6px; padding: 6px 8px; font-family: var(--mono); font-size: 12px; }
.bot .stats b { display: block; color: var(--muted); font-size: 10px; font-weight: 500; letter-spacing: .06em; text-transform: uppercase; }
.pos { color: var(--green); } .neg { color: var(--red); }
.status-running { color: var(--green); } .status-halted { color: var(--red); } .status-stopped { color: var(--muted); }
.log { background: var(--panel2); border-radius: 8px; padding: 10px; max-height: 320px; overflow: auto; font-size: 12px; margin: 0; white-space: pre-wrap; }
.foot { text-align: center; color: var(--muted); font-size: 11px; letter-spacing: .08em; padding: 20px; }

.login-body { display: grid; place-items: center; min-height: 100vh; }
.login-card { width: min(420px, 92vw); background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 28px; }
.login-card .sub { color: var(--muted); font-size: 12px; margin: 6px 0 20px; }
.login-card form { display: flex; flex-direction: column; gap: 10px; }
.login-card .foot { padding: 20px 0 0; }

@media (max-width: 900px) { .grid-layout { grid-template-columns: 1fr; } }

.advanced { margin: 4px 0 10px; }
.advanced summary { cursor: pointer; }
.advanced .row { margin-top: 10px; }