:root{
  --bg:#0e1116; --panel:#161b22; --line:#272e38; --txt:#e6edf3; --muted:#8b949e;
  --green:#2ea043; --red:#da3633; --yellow:#d29922; --accent:#388bfd;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--txt);
  font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:920px;margin:0 auto;padding:24px 18px 60px}
h1{font-size:22px;margin:.2em 0 .6em}
h2{font-size:17px;margin:.2em 0 .6em}
.muted{color:var(--muted)}
.small{font-size:12.5px}

/* nav */
.nav{display:flex;align-items:center;gap:18px;padding:10px 18px;
  background:var(--panel);border-bottom:1px solid var(--line)}
.brand{font-weight:700}.brand span{color:var(--accent)}
.nav nav{display:flex;gap:14px;flex:1}
.who{display:flex;align-items:center;gap:10px}
.who .email{color:var(--muted);font-size:13px}
.logout{color:var(--muted)}

/* cards & forms */
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;
  padding:18px;margin:16px 0}
.card.narrow{max-width:440px}
.narrow{margin-left:auto;margin-right:auto}
label{display:block;margin:10px 0;font-size:13px;color:var(--muted)}
input,select{width:100%;margin-top:4px;padding:9px 10px;background:#0d1117;
  color:var(--txt);border:1px solid var(--line);border-radius:7px;font-size:14px}
label.inline,label.check{display:inline-flex;align-items:center;gap:8px;width:auto}
label.inline select{width:auto}
label.check input{width:auto;margin:0}
fieldset{border:1px solid var(--line);border-radius:8px;margin:14px 0;padding:10px 14px}
legend{color:var(--muted);font-size:12.5px;padding:0 6px}
button{margin-top:12px;padding:9px 16px;background:var(--accent);color:#fff;
  border:0;border-radius:7px;font-size:14px;cursor:pointer}
button:hover{filter:brightness(1.08)}
button.danger{background:var(--red)}
button.link-danger{background:none;color:var(--red);padding:0;margin:0;font-size:13px}
.inline{display:inline}
.row{display:flex;gap:14px;align-items:center}
.row.between{justify-content:space-between}

/* flash */
.flash{padding:10px 14px;border-radius:8px;margin:12px 0;font-size:14px}
.flash.ok{background:#10341b;border:1px solid var(--green)}
.flash.err{background:#3a1413;border:1px solid var(--red)}

/* signal */
.signal .big{font-size:18px;font-weight:600}
.signal .headline{font-size:16px;margin:8px 0}
.signal .levels{margin-top:10px;padding-top:10px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:6px 18px}
.signal .levels .lv{white-space:nowrap}
.risk{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:12px;padding:3px 10px;border-radius:20px;background:#0d2818;border:1px solid var(--green)}
.chip-warn{background:#3a2a10;border-color:var(--yellow)}
textarea{width:100%;margin-top:4px;padding:9px 10px;background:#0d1117;color:var(--txt);
  border:1px solid var(--line);border-radius:7px;font:13px ui-monospace,monospace}
.automation{border-left:4px solid var(--yellow)}
.live-card{border-left:4px solid var(--red)}
.bigbtn{display:inline-block;margin:8px 0;padding:11px 18px;background:var(--accent);
  color:#fff;border-radius:8px;font-weight:600}
.bigbtn:hover{filter:brightness(1.08);text-decoration:none}
.controls{display:flex;gap:12px;flex-wrap:wrap}
.disclaimer{color:var(--muted);font-size:12px;margin-top:18px;padding:10px 12px;
  border:1px dashed var(--line);border-radius:8px}
details summary{cursor:pointer;margin-top:8px}
.hero{text-align:center;margin:30px auto 6px}
.brand-lg{font-size:30px;margin:0}.brand-lg span{color:var(--accent)}
.hero p{color:var(--txt);max-width:420px;margin:10px auto}

/* guidance + explanation */
.nextstep{background:#10243a;border:1px solid var(--accent);border-radius:10px;
  padding:12px 16px;margin:14px 0;font-size:14.5px}
.help{margin:10px 0;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 16px}
.help summary{cursor:pointer;font-weight:600}
.help ol{margin:10px 0 4px;padding-left:20px}.help li{margin:4px 0}
.explain{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;margin:16px 0}
.explain .xcol{margin:0}
.explain h3{font-size:14px;margin:0 0 8px}
.explain ul{margin:0;padding-left:18px}
.explain li{margin:6px 0;font-size:13px;line-height:1.45}
.explain .risks{border-left:3px solid var(--yellow)}
.tfdetail{margin:6px 0 12px}
.tfdetail summary{cursor:pointer;color:var(--muted);font-size:13px;margin:8px 0}
@media (max-width:760px){ .explain{grid-template-columns:1fr} }

/* plain-language summary banner */
.summary{border-left:5px solid var(--line)}
.summary.green{border-left-color:var(--green)}
.summary.red{border-left-color:var(--red)}
.summary.yellow{border-left-color:var(--yellow)}
.summary-line{font-size:16px;line-height:1.5}
.summary .nextstep{margin:12px 0 0}

/* trader desk (dad) */
.desk h3{font-size:14px;margin:0 0 10px}
.desk-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.desk-grid > div{display:flex;flex-direction:column;gap:2px;background:#0d1117;
  border:1px solid var(--line);border-radius:8px;padding:8px 10px}
.desk-grid .k{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}
.desk-grid .v{font-size:15px;font-weight:600}
.desk-grid .v.hot{color:var(--yellow)}
.chart h3{font-size:14px;margin:0 0 10px}
@media (max-width:760px){ .desk-grid{grid-template-columns:repeat(2,1fr)} }

/* breadcrumb / back nav */
.crumb{margin:14px 0 0;font-size:13px}
.crumb a{color:var(--muted)}
.flash.ok.small,.flash.small{font-size:13px;padding:8px 12px}

/* simulator */
.lotbar{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.lotbar button{margin-top:0}
.bignum{font-size:24px;font-weight:700;margin:4px 0}
.gain{color:var(--green)}.loss{color:var(--red)}
td.gain,td.loss{font-weight:600}
optgroup{color:var(--muted)}
.signal.green{border-left:4px solid var(--green)}
.signal.red{border-left:4px solid var(--red)}
.signal.yellow{border-left:4px solid var(--yellow)}
.warn{color:var(--yellow);margin-top:6px}
.tag{font-size:11px;padding:2px 7px;border-radius:20px;margin-left:8px;vertical-align:middle}
.tag-live{background:var(--green)}.tag-delayed{background:var(--yellow);color:#000}
.tag-demo{background:#444}

/* table */
table.grid{width:100%;border-collapse:collapse;margin:12px 0;font-size:13px}
.grid th,.grid td{text-align:left;padding:7px 10px;border-bottom:1px solid var(--line)}
.grid th{color:var(--muted);font-weight:600}
.grid tr.anchor{background:#1b2330}
.actions{display:flex;gap:12px;align-items:center}

/* pills */
.pill{font-size:11px;padding:2px 9px;border-radius:20px;background:#30363d;color:#fff}
.pill-admin{background:#8957e5}.pill-trader{background:#1f6feb}.pill-viewer{background:#30363d}
.code{display:inline-block;background:#0d1117;border:1px solid var(--line);
  padding:4px 10px;border-radius:6px;font-family:ui-monospace,monospace;margin-left:6px}
.invite{background:#10243a;border-color:#1f6feb}
.trade{margin:16px 0}
.foot{color:var(--muted);font-size:12px;text-align:center;padding:18px;border-top:1px solid var(--line)}

/* ── mobile / cross-device (seamless on phone + laptop) ── */
@media (max-width:640px){
  .wrap{padding:16px 12px 50px}
  .nav{flex-wrap:wrap;gap:10px 14px;padding:10px 12px}
  .nav nav{order:3;flex-basis:100%;gap:18px}
  .who{margin-left:auto}
  .who .email{display:none}            /* keep the bar compact on phones */
  .row.between{flex-direction:column;align-items:flex-start;gap:10px}
  .row.between form.inline{width:100%}
  .row.between select{width:100%}
  table.grid{display:block;overflow-x:auto;white-space:nowrap}  /* scroll wide tables */
  .card,.card.narrow{max-width:100%}
  .signal .big{font-size:16px}
  .signal .headline{font-size:14.5px}
  input,select{font-size:16px}         /* 16px stops iOS auto-zoom on focus */
  button{width:100%}
  .actions{flex-wrap:wrap}
}