:root {
  --bg: #f5f6f8; --card: #ffffff; --text: #1d2330; --muted: #6b7385; --line: #e3e6ec;
  --accent: #2f6fde; --accent-text: #ffffff; --pos: #11845b; --neg: #c9372c; --warn: #a96500;
  --banner: #fff4d6; --ok-bg: #e7f6ee; --bad-bg: #fdecea;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151b; --card: #1b1f27; --text: #e6e8ee; --muted: #99a1b3; --line: #2c323d;
    --accent: #5b8ff0; --pos: #3ccf91; --neg: #ff6b5e; --warn: #f0b04a;
    --banner: #3a3015; --ok-bg: #163527; --bad-bg: #3d1d1a;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.5 -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
a { color: var(--accent); text-decoration: none; }
main { max-width: 1240px; margin: 0 auto; padding: 16px; }
h1 { font-size: 20px; margin: 4px 0 12px; }
h2 { font-size: 16px; margin: 0 0 10px; }
.banner { background: var(--banner); text-align: center; padding: 6px; font-size: 13px; }
.banner.live { background: var(--bad-bg); }
.offer { margin-top: 12px; padding: 10px 12px; border: 1px solid var(--warn); border-radius: 6px; }
.top { display: flex; gap: 20px; align-items: center; padding: 10px 16px; background: var(--card);
  border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.top .brand { font-weight: 700; color: var(--text); }
.top nav { display: flex; gap: 16px; flex: 1; }
.top .who { display: flex; gap: 12px; align-items: center; color: var(--muted); font-size: 13px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.narrow { max-width: 380px; margin: 60px auto; }
.narrow-left { max-width: 640px; }
.head { display: flex; justify-content: space-between; align-items: center; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin: 12px 0; }
.form-grid .span-all { grid-column: 1 / -1; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
label:has(> input[type="checkbox"]) { flex-direction: row; align-items: flex-start; gap: 10px; }
input[type="checkbox"] { width: 22px; height: 22px; flex: none; margin: 0; }
input, select { font: inherit; padding: 7px 9px; border: 1px solid var(--line); border-radius: 6px;
  background: var(--bg); color: var(--text); min-width: 0; }
button, .btn { font: inherit; padding: 7px 14px; border-radius: 6px; border: 1px solid var(--line);
  background: var(--card); color: var(--text); cursor: pointer; display: inline-block; text-align: center; }
button:hover, .btn:hover { border-color: var(--accent); }
button.primary, .btn.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
button.danger { color: var(--neg); border-color: var(--neg); }
button.link { border: none; background: none; color: var(--accent); padding: 0; }
form.inline { display: inline; }
.controls { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; overflow-wrap: anywhere; }
.flash.ok { background: var(--ok-bg); }
.flash.bad { background: var(--bad-bg); }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.pos { color: var(--pos); }
.neg { color: var(--neg); }
.warn { color: var(--warn); }
code { background: var(--bg); padding: 2px 6px; border-radius: 4px; font-size: 14px; }
.grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.account-card { color: var(--text); display: block; }
.account-card:hover { border-color: var(--accent); }
.account-card h2 { margin: 0; }
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 16px; margin: 12px 0 4px; }
.stats.wide { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
.stats dt { color: var(--muted); font-size: 12px; }
.stats dd { margin: 0; font-size: 16px; font-variant-numeric: tabular-nums; }
.pill { font-size: 12px; padding: 2px 10px; border-radius: 99px; background: var(--bg); border: 1px solid var(--line); white-space: nowrap; }
.st-running { color: var(--pos); border-color: var(--pos); }
.st-paused, .st-exiting { color: var(--warn); border-color: var(--warn); }
.st-error { color: var(--neg); border-color: var(--neg); }
.table-wrap { overflow-x: auto; max-width: 100%; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
tr.lv-review td { background: var(--bad-bg); }
tr.lv-holding td { background: var(--banner); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
details summary { cursor: pointer; color: var(--accent); margin-top: 8px; }
.inline-label { flex-direction: row; align-items: center; gap: 6px; }
.org-forms { display: flex; flex-direction: column; gap: 10px; }
.pay { display: flex; gap: 20px; align-items: flex-start; flex-wrap: wrap; }
.pay img { background: #fff; border-radius: 8px; padding: 6px; max-width: 100%; }
.stats.one-col { grid-template-columns: 1fr; }
.big code { font-size: 18px; font-weight: 600; }
code.wrap { word-break: break-all; }
h3 { font-size: 13px; margin: 14px 0 6px; }
.start-modes { display: flex; flex-direction: column; gap: 14px; width: 100%; }
.cycle-form { display: flex; flex-direction: column; gap: 8px; border-top: 1px solid var(--line); padding-top: 12px; }
.plan { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 6px 0; }
.plan span { padding: 2px 8px; border-radius: 6px; overflow-wrap: anywhere; }
.plan span.on { background: var(--ok-bg); font-weight: 600; }
.capital-preview { padding: 8px 12px; border-left: 3px solid var(--muted); background: rgba(127, 127, 127, 0.06); }
.capital-preview p { margin: 2px 0; }

/* ---- account page ---- */
.long { overflow-wrap: anywhere; word-break: break-word; }
.acct-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 8px 12px; flex-wrap: wrap; margin-bottom: 12px; }
.acct-head h1 { margin: 0; }
.acct-head .back { font-size: 13px; }
.chips { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.chip { font-size: 12px; padding: 2px 10px; border-radius: 99px; border: 1px solid var(--line); white-space: nowrap; }
.chip-live { color: var(--neg); border-color: var(--neg); font-weight: 600; }
.chip-sim { color: var(--warn); border-color: var(--warn); }
.chip-view { color: var(--muted); }
.current { margin: 0 0 10px; }
.start-single { display: flex; flex-direction: column; gap: 8px; }
.start-single button { width: 100%; }
.cycle-form button { width: 100%; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; width: 100%; }
.btn-row form { flex: 1 1 140px; }
.btn-row button { width: 100%; }
.danger-zone { width: 100%; margin-top: 18px; padding-top: 14px; border-top: 1px dashed var(--line); }
.danger-zone button { width: 100%; }
.stale { background: var(--banner); padding: 8px 10px; border-radius: 6px; margin: 4px 0 8px; }
.stale[hidden], [hidden] { display: none; }
details.fold { border-top: 1px solid var(--line); padding: 2px 0 10px; }
details.fold > summary { font-weight: 600; margin: 0; padding: 10px 0; min-height: 44px; display: flex; align-items: center;
  gap: 6px; color: var(--text); list-style: none; }
details.fold > summary::-webkit-details-marker { display: none; }
details.fold > summary::before { content: "▸"; color: var(--muted); display: inline-block; transition: transform .15s; }
details.fold[open] > summary::before { transform: rotate(90deg); }
details.fold.quiet > summary { font-weight: 400; color: var(--muted); font-size: 13px; min-height: 36px; padding: 6px 0; }
details.fold.new-strategy { border-top: none; padding: 0; margin-bottom: 14px; }
details.fold.new-strategy > summary { background: var(--accent); color: var(--accent-text); border-radius: 6px; padding: 0 14px;
  justify-content: center; font-weight: 600; min-height: 46px; }
details.fold.new-strategy > summary::before { display: none; }
details.fold.new-strategy[open] > summary { margin-bottom: 10px; }
.alerts { margin-bottom: 16px; }
.alert { padding: 10px 12px; border-radius: 8px; margin: 10px 0 0; border: 1px solid var(--line); overflow-wrap: anywhere; }
.alerts .alert:first-child { margin-top: 0; }
.alert.warn { background: var(--banner); border-color: var(--warn); color: var(--text); }
.alert.bad { background: var(--bad-bg); border-color: var(--neg); }
.alert.info { background: var(--card); }
.alert.note { background: transparent; border-color: transparent; padding: 2px 4px; color: var(--muted); font-size: 13px; }
.alert .actions { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.alert .actions .btn, .alert .actions button { width: 100%; text-align: left; }
.alert a { text-decoration: underline; }
.alert a.btn { text-decoration: none; }
.kpis { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 0; }
.kpi { min-width: 0; }
.kpi dt { color: var(--muted); font-size: 12px; }
.kpi dd { margin: 0; font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.kpi .sub { display: block; font-size: 12px; font-weight: 400; color: var(--muted); }
.diag { margin: 0; display: flex; flex-direction: column; gap: 10px; }
.diag dt { color: var(--muted); font-size: 12px; }
.diag dd { margin: 0; overflow-wrap: anywhere; }
.summary h2, .details-card h2, .settings-card h2, .ops h2 { margin-bottom: 8px; }
.details-card details.fold:first-of-type, .settings-card details.fold:first-of-type { border-top: none; }
.strategy-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.strategy-list li { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; }
dl.mini { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 6px 12px; margin: 8px 0; }
dl.mini dt { color: var(--muted); font-size: 12px; }
dl.mini dd { margin: 0; overflow-wrap: anywhere; }
fieldset.group { border: 1px solid var(--line); border-radius: 8px; margin: 0; padding: 10px 12px 12px;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; min-width: 0; }
fieldset.group legend { padding: 0 6px; font-size: 13px; font-weight: 600; }
fieldset.group .span-all { grid-column: 1 / -1; }
.export-form { display: flex; flex-direction: column; gap: 8px; }
.export-form button { width: 100%; }
.settings-card details.fold form.form-grid { margin-top: 4px; }

/* ---- dashboard ---- */
.account-card .go { display: block; margin-top: 8px; font-size: 13px; color: var(--accent); }
.new-account > summary { font-weight: 600; }

@media (max-width: 800px) {
  .two-col { grid-template-columns: 1fr; }
  .top nav { order: 3; width: 100%; }
}

/* ---- phones ---- */
@media (max-width: 640px) {
  main { padding: 12px; }
  .card { padding: 14px; margin-bottom: 12px; border-radius: 8px; }
  h1 { font-size: 19px; }
  .banner { font-size: 12px; padding: 6px 10px; line-height: 1.4; }
  .top { padding: 8px 12px; gap: 8px 12px; }
  .top nav { order: 2; gap: 6px; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; flex-wrap: nowrap; }
  .top nav a { padding: 10px 8px; display: inline-block; }
  .top .who { order: 3; flex-wrap: wrap; gap: 0 12px; width: 100%; font-size: 12px; }
  .top .who span { max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .top .who a, .top .who button.link { padding: 10px 0; display: inline-block; }
  .narrow { margin: 24px auto; max-width: none; }
  .narrow-left { max-width: none; }
  /* iOS zooms into inputs under 16px; fingers need 44px targets */
  input, select { font-size: 16px; min-height: 44px; padding: 9px 10px; width: 100%; }
  input[type="checkbox"] { width: 24px; height: 24px; min-height: 0; }
  button, .btn { min-height: 44px; padding: 10px 14px; }
  button.link { min-height: 44px; padding: 0 6px; }
  .form-grid, fieldset.group { grid-template-columns: 1fr; }
  .inline-label { flex-direction: column; align-items: stretch; }
  .controls form.inline, .row form.inline { display: block; }
  .stats.wide { grid-template-columns: 1fr 1fr; }
  th, td { padding: 8px 8px; }
  main table { max-width: 100%; }
  .pay img { width: 100%; height: auto; }
  .alert .actions { flex-direction: column; }
}

/* Long detail tables scroll inside their own box instead of making the page endless. */
.details-card .table-wrap { max-height: 65vh; overflow: auto; }
.details-card .table-wrap th { position: sticky; top: 0; background: var(--card); z-index: 1; }

/* ---- wide screens: the phone-sized full-width controls shrink back ---- */
@media (min-width: 641px) {
  details.fold.new-strategy > summary { max-width: 260px; }
  .start-single { flex-direction: row; align-items: flex-end; max-width: 640px; }
  .start-single label { flex: 1; }
  .start-single button, .cycle-form button, .export-form button { width: auto; }
  .cycle-form { max-width: 560px; }
  .btn-row form { flex: 0 0 auto; }
  .btn-row button { width: auto; }
  .danger-zone { width: auto; border-top: none; padding-top: 0; margin-top: 16px; }
  .danger-zone button { width: auto; }
  .kpis { grid-template-columns: repeat(4, 1fr); }
  .export-form { flex-direction: row; flex-wrap: wrap; align-items: flex-end; }
  .alert .actions { flex-direction: row; flex-wrap: wrap; }
  .alert .actions .btn, .alert .actions button { width: auto; }
  .strategy-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
}

.build { text-align: center; color: var(--muted); font-size: 11px; padding: 6px 12px 16px; }

/* One current state of the account, on top of the operations card. */
.statusbar { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; padding: 10px 14px; margin: 0 0 12px;
  border-radius: 8px; border: 1px solid var(--line); background: var(--bg); }
.statusbar .st-title { font-size: 16px; font-weight: 700; }
.statusbar .st-detail { color: var(--muted); overflow-wrap: anywhere; }
.statusbar.st-ok { background: var(--ok-bg); border-color: var(--pos); }
.statusbar.st-ok .st-title { color: var(--pos); }
.statusbar.st-waiting_price, .statusbar.st-recovering, .statusbar.st-starting { background: var(--banner); border-color: var(--warn); }
.statusbar.st-waiting_price .st-title, .statusbar.st-recovering .st-title, .statusbar.st-starting .st-title { color: var(--warn); }
.statusbar.st-attention, .statusbar.st-unavailable { background: var(--bad-bg); border-color: var(--neg); }
.statusbar.st-attention .st-title, .statusbar.st-unavailable .st-title { color: var(--neg); }
.status-list { margin: 6px 0 0; padding-left: 18px; }
.start-wait { margin: 6px 0; }
button[disabled] { opacity: .55; cursor: not-allowed; }