:root {
  --bg: #0b0e13;
  --panel: #131821;
  --border: #222a36;
  --text: #d6dbe3;
  --muted: #7b8698;
  --green: #16c784;
  --red: #ea3943;
  --accent: #f0b90b;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 13px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
button, input, select { font: inherit; color: inherit; }
select, input {
  background: #0f141c; border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px;
}
input:focus, select:focus { outline: 1px solid var(--accent); }

.topbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 14px;
  padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--panel);
}
.topbar label { display: flex; align-items: center; gap: 6px; color: var(--muted); }
.pair { display: flex; align-items: center; gap: 6px; color: var(--muted); }
.pair #base { width: 92px; text-transform: uppercase; }
.pair #base::placeholder { color: var(--muted); text-transform: uppercase; }
.pair span { color: var(--muted); }
.brand { font-weight: 700; color: var(--accent); }
.seg { display: flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.seg button { background: #0f141c; border: 0; padding: 5px 10px; cursor: pointer; color: var(--muted); }
.seg button:hover { color: var(--accent); }
.seg button.active { background: #1b2230; color: var(--accent); }
.seg.wide { margin: 4px 0 10px; }
#al-order .lock-note { margin: 0 0 10px; }
.seg.wide button { flex: 1; }
.nav { color: var(--accent); text-decoration: none; font-weight: 600; }
.nav:hover { text-decoration: underline; }
.badge { padding: 3px 8px; border-radius: 4px; font-weight: 700; font-size: 11px; }
.badge.sandbox { background: #1e3a2a; color: var(--green); }
.badge.live { background: #4a1418; color: var(--red); }
.conn { display: flex; align-items: center; gap: 6px; font-size: 12px; cursor: help; white-space: nowrap; }
.conn i { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.conn.ok { color: var(--green); }
.conn.ok i { animation: blink 2s ease-in-out infinite; }
.conn.warn { color: var(--accent); }
.conn.bad { color: var(--red); }
@keyframes blink { 50% { opacity: .35; } }
.stats { display: flex; gap: 18px; margin-left: auto; }
.stats div { display: flex; flex-direction: column; }
.stats span { color: var(--muted); font-size: 11px; }
.up { color: var(--green); } .down { color: var(--red); }

.grid {
  display: grid; gap: 8px; padding: 8px;
  grid-template-columns: 1fr 260px 280px;
  grid-template-rows: 520px minmax(220px, auto);
  grid-template-areas: "chart book form" "bottom bottom bottom";
}
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 10px; min-width: 0; }
.panel h3 { margin: 0 0 8px; font-size: 13px; }
.chart-panel { grid-area: chart; padding: 0; overflow: hidden; display: flex; flex-direction: column; position: relative; }
#chart { width: 100%; flex: 1; min-height: 0; }
#chart.over-line { cursor: ns-resize; }
.chart-bar { position: absolute; top: 6px; left: 8px; right: 90px; z-index: 3; display: flex; gap: 12px; pointer-events: none; }
.chart-tools { display: flex; gap: 4px; pointer-events: auto; }
.chart-tools button {
  background: #0f141ccc; border: 1px solid var(--border); border-radius: 4px; padding: 2px 8px;
  font-size: 11px; color: var(--muted); cursor: pointer;
}
.chart-tools button:hover { color: var(--text); }
.chart-tools button.active { color: var(--accent); border-color: var(--accent); }
.ind-pane { position: relative; flex: none; border-top: 1px solid var(--border); }
.ind-label { position: absolute; top: 4px; left: 8px; z-index: 3; font-size: 11px; color: var(--muted); pointer-events: none; }
.book-panel { grid-area: book; display: flex; flex-direction: column; overflow: hidden; }
.form-panel { grid-area: form; }
.bottom-panel { grid-area: bottom; }

.book-head, .book .row { display: grid; grid-template-columns: 1fr 1fr 1fr; text-align: right; }
.book-head { color: var(--muted); font-size: 11px; padding-bottom: 4px; }
.book-head span:first-child, .book .row span:first-child { text-align: left; }
.book { flex: 1; min-height: 0; overflow: hidden; display: flex; flex-direction: column; font-variant-numeric: tabular-nums; }
.book.asks { justify-content: flex-end; }
.book .row { position: relative; height: var(--book-row); line-height: var(--book-row); flex: none; cursor: pointer; }
:root { --book-row: 20px; } /* app.js по этой высоте считает, сколько целых строк влезает */
.book .row:hover { background: #1b2230; }
.book .row .bar { position: absolute; right: 0; top: 0; bottom: 0; opacity: .15; }
.asks .row span:first-child { color: var(--red); } .asks .bar { background: var(--red); }
.bids .row span:first-child { color: var(--green); } .bids .bar { background: var(--green); }
.spread { text-align: center; padding: 6px 0; font-weight: 700; font-size: 15px; border-block: 1px solid var(--border); }

.side-tabs, .type-tabs, .bottom-tabs, .pcts { display: flex; gap: 4px; margin-bottom: 10px; }
.side-tabs button, .type-tabs button, .bottom-tabs button, .pcts button {
  flex: 1; background: #0f141c; border: 1px solid var(--border); border-radius: 6px; padding: 6px; cursor: pointer;
}
.bottom-tabs button { flex: 0 0 auto; padding: 6px 14px; }
.bottom-tabs .tabs-sep { align-self: center; margin-left: 12px; color: var(--muted); font-size: 11px; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: #1b2230; }
tr.current td { background: #1b223080; }
td.best { color: var(--accent); font-weight: 600; }
.arb { padding: 8px 8px 10px; color: var(--muted); }
.summary { display: flex; flex-wrap: wrap; align-items: baseline; gap: 18px; padding: 6px 8px 10px; color: var(--muted); }
.summary .total { font-size: 18px; font-weight: 700; color: var(--text); }
.summary label { margin-left: auto; display: flex; gap: 6px; align-items: center; cursor: pointer; }
.share { position: relative; min-width: 90px; }
.share i { position: absolute; left: 0; top: 50%; height: 4px; margin-top: 6px; background: var(--accent); opacity: .6; border-radius: 2px; }
.arb b { color: var(--accent); }
.type-tabs button.active, .bottom-tabs button.active { border-color: var(--accent); color: var(--accent); }
.side-tabs .buy.active { background: var(--green); color: #000; border-color: var(--green); }
.side-tabs .sell.active { background: var(--red); color: #fff; border-color: var(--red); }
.field { display: flex; flex-direction: column; gap: 4px; color: var(--muted); margin-bottom: 10px; }
.field input, .field select { color: var(--text); }
.check { display: flex; gap: 8px; align-items: flex-start; color: var(--muted); margin-bottom: 10px; cursor: pointer; }
.steps { padding-left: 20px; margin: 0 0 10px; color: var(--muted); line-height: 1.5; }
.steps a, .modal-box a { color: var(--accent); }
.bt-controls label { margin: 0; }
.bt-controls input { width: 60px; }
.progress { height: 4px; background: var(--border); border-radius: 2px; margin-top: 6px; overflow: hidden; max-width: 400px; }
.progress i { display: block; height: 100%; background: var(--accent); transition: width .3s; }
.badge-mini { color: var(--accent); font-size: 11px; }
.check-inline { display: inline-flex; gap: 5px; align-items: center; cursor: pointer; }
.bt-controls .check-inline input { width: auto; }
.toggle.live-on { color: var(--green); border-color: var(--green); }
td.cross div { white-space: nowrap; }
#rs-box td:nth-child(2) { white-space: normal; min-width: 180px; max-width: 240px; }
ul.facts { margin: 4px 0 10px; padding-left: 22px; line-height: 1.6; }
.ai-box { border: 1px solid #b37feb66; border-radius: 8px; padding: 4px 12px 10px; margin: 8px 0 12px; background: #b37feb0d; }
.ai-box p { margin: 6px 0; line-height: 1.5; }
h4.sub { margin: 14px 8px 6px; color: var(--muted); font-weight: 600; }
.field-head { display: flex; justify-content: space-between; }
.field-head i { font-style: normal; font-size: 11px; }
.row-info { display: flex; justify-content: space-between; color: var(--muted); margin: 6px 0; }
.row-info b { color: var(--text); }
.submit { width: 100%; padding: 10px; border: 0; border-radius: 6px; font-weight: 700; cursor: pointer; margin-top: 8px; }
.submit.buy { background: var(--green); color: #000; }
.submit.sell { background: var(--red); color: #fff; }
.submit.accent { background: var(--accent); color: #000; }
.submit:disabled { opacity: .5; cursor: not-allowed; }

.table-wrap { overflow: auto; max-height: 320px; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 500; }
td button { background: none; border: 1px solid var(--red); color: var(--red); border-radius: 4px; padding: 2px 8px; cursor: pointer; }
.empty { color: var(--muted); padding: 16px; text-align: center; }

.modal { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: grid; place-items: center; z-index: 10; }
.modal-box { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 20px; width: min(360px, calc(100% - 32px)); }
.modal-box h3 { margin-top: 0; }
.modal-box .warn { color: var(--red); font-weight: 700; margin-top: 10px; }
.modal-actions { display: flex; gap: 8px; margin-top: 16px; }
.modal-actions button { flex: 1; margin: 0; }
#modal-cancel { background: #0f141c; border: 1px solid var(--border); border-radius: 6px; cursor: pointer; }
.toast { position: fixed; bottom: 20px; right: 20px; padding: 10px 16px; border-radius: 8px; background: #1b2230; border: 1px solid var(--border); max-width: 420px; z-index: 20; }
.toast.error { border-color: var(--red); }
.toast.ok { border-color: var(--green); }
.toast.alert { border-color: #b37feb; }
.toast { white-space: pre-line; }
.hidden { display: none !important; }
/* публичное демо: только просмотр */
.demo-only { display: none; }
body.demo .demo-only { display: block; }
body.demo .full-only, body.demo .form-panel > :not(.demo-note) { display: none !important; }
.demo-note h3 { margin-top: 0; color: var(--accent); }
.demo-note p { line-height: 1.5; }

.toggle { background: #0f141c; border: 1px solid var(--border); border-radius: 6px; padding: 4px 10px; cursor: pointer; color: var(--muted); }
.toggle:hover { color: var(--text); }
.toggle.on { background: #3a2f0b; border-color: var(--accent); color: var(--accent); font-weight: 600; }
.lock-note { margin-top: 8px; padding: 8px; border: 1px solid var(--accent); border-radius: 6px; color: var(--accent); background: #2a2208; }
.lock-note.bad { border-color: var(--red); color: var(--red); background: #2a0f12; }
.login-page { min-height: 100vh; display: grid; place-items: center; }
.login-box { display: flex; flex-direction: column; gap: 12px; }
.login-error { color: var(--red); min-height: 1.4em; }

@media (max-width: 1000px) {
  .grid {
    grid-template-columns: 1fr;
    grid-template-rows: 380px auto auto auto;
    grid-template-areas: "chart" "form" "book" "bottom";
  }
  .book-panel { height: 420px; }
  .stats { margin-left: 0; }
}
.row-info b.down { color: var(--red); }
.row-info b.warn-text { color: var(--accent); }
.muted { color: var(--muted); }