:root{
  --bg:#0a0d13; --panel:#131824; --panel2:#1a2130; --line:#242d3e;
  --txt:#e8edf5; --mut:#8a97ab; --accent:#f97316; --accent2:#ea6a0c;
  --blue:#3b82f6; --green:#22c55e; --red:#ef4444; --amber:#f59e0b; --chip:#0e1420;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:radial-gradient(1200px 600px at 80% -10%,#1a1206 0%,var(--bg) 55%);color:var(--txt);font-size:14px}
a{color:var(--accent);text-decoration:none}
button{cursor:pointer;font-family:inherit}
.hidden{display:none !important}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace}
.grow{flex:1}
input,select{background:var(--chip);border:1px solid var(--line);color:var(--txt);
  padding:9px 11px;border-radius:9px;font-size:13px;width:100%}
input:focus,select:focus{outline:none;border-color:var(--accent)}
label{display:block;font-size:12px;color:var(--mut);margin:9px 0 4px}
label.chkline{display:flex;align-items:center;gap:8px;color:var(--txt);margin:10px 0}
label.chkline input{width:auto}
.btn{background:var(--accent);border:none;color:#fff;padding:10px 15px;border-radius:9px;font-weight:600;transition:.15s}
.btn:hover{background:var(--accent2)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--txt)}
.btn.ghost:hover{border-color:var(--accent)}
.btn.green{background:var(--green)} .btn.red{background:var(--red)}
.btn.sm{padding:6px 10px;font-size:12px;border-radius:7px}
.row{display:flex;gap:12px;flex-wrap:wrap}
.col{flex:1;min-width:150px}
.col.end{display:flex;align-items:flex-end}
.btnrow{display:flex;gap:12px;margin-top:12px}
.btnrow.big button{flex:1;font-size:16px;padding:14px}
.err{color:var(--red);font-size:12px;min-height:16px;margin-top:6px}
.hint{color:var(--mut);font-size:12px;margin-top:8px;line-height:1.5}
.k{color:var(--mut);font-size:12px}
.brand{color:var(--accent);font-weight:800}

/* landing */
.land-hero{max-width:1100px;margin:6vh auto;padding:0 20px;display:flex;gap:48px;align-items:center;flex-wrap:wrap}
.land-copy{flex:1;min-width:320px}
.land-copy h1{font-size:38px;line-height:1.1;margin:12px 0}
.land-copy .lead{color:var(--mut);font-size:16px;max-width:560px}
.land-feats{list-style:none;padding:0;margin:20px 0}
.land-feats li{padding:7px 0}
.tabsw{display:flex;gap:8px;margin-bottom:14px}
.tabsw button{flex:1;background:var(--chip);border:1px solid var(--line);color:var(--mut);padding:9px;border-radius:9px}
.tabsw button.on{background:var(--accent);color:#fff;border-color:var(--accent)}
#auth{width:360px;max-width:100%;padding:26px;background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.5)}

/* app shell */
.topbar{display:flex;align-items:center;gap:12px;padding:12px 20px;background:rgba(19,24,36,.9);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;backdrop-filter:blur(8px);flex-wrap:wrap}
.topbar .brand{font-size:17px}
.conn{font-size:13px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--red);display:inline-block}
.dot.on{background:var(--green);box-shadow:0 0 8px var(--green)}
.chip{font-size:11px;padding:4px 9px;border-radius:20px;background:var(--chip);border:1px solid var(--line);color:var(--mut);white-space:nowrap}
.chip.safe{color:var(--green);border-color:var(--green)}
.chip.warn{color:var(--amber);border-color:var(--amber)}
.chip.danger{color:var(--red);border-color:var(--red)}
.chip.pick{cursor:pointer} .chip.pick:hover{border-color:var(--accent);color:var(--txt)}
.chips{display:flex;gap:6px;flex-wrap:wrap}

.shell{display:flex;max-width:1240px;margin:0 auto;gap:18px;padding:18px}
.side{width:190px;flex-shrink:0;display:flex;flex-direction:column;gap:4px;position:sticky;top:70px;height:max-content}
.side button{text-align:left;background:transparent;border:none;color:var(--mut);padding:11px 14px;border-radius:10px;font-size:14px}
.side button:hover{background:var(--panel)}
.side button.on{background:var(--panel);color:var(--txt);border-left:3px solid var(--accent)}
.content{flex:1;min-width:0}

.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:16px}
.card h3{margin:0 0 14px;font-size:15px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:860px){.grid2{grid-template-columns:1fr}.side{width:100%;flex-direction:row;overflow-x:auto;position:static}.shell{flex-direction:column}}

.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:16px}
@media(max-width:860px){.tiles{grid-template-columns:repeat(2,1fr)}}
.tile{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px}
.tile .v{font-size:24px;font-weight:800;margin:4px 0}
.pos{color:var(--green)} .neg{color:var(--red)}

.tablewrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:8px 9px;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--mut);font-weight:600;font-size:12px;position:sticky;top:0;background:var(--panel)}

.chart{width:100%;background:var(--chip);border-radius:10px;border:1px solid var(--line);display:block}
.log{height:60vh;min-height:320px;overflow:auto;background:var(--chip);border:1px solid var(--line);
  border-radius:10px;padding:12px;font-family:ui-monospace,Menlo,monospace;font-size:12px}
.log .l{padding:3px 0;border-bottom:1px solid #161d29}
.log .ok{color:var(--green)} .log .warn{color:var(--amber)} .log .error{color:var(--red)}
.log .t{color:var(--mut)}
.warnbox{background:#2a1a0a;border:1px solid var(--amber);color:#f2c98b;padding:11px 14px;border-radius:10px;margin-bottom:14px;font-size:13px}

/* ---- v3: price strip, chart header, mobile ---- */
.pricestrip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}
.pcard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.psym{font-weight:700}
.pprice{font-size:20px;font-weight:800;margin:2px 0}
.pchg{font-size:12px}
.chart-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.chlegend{font-size:12px;color:var(--mut);margin-top:8px;display:flex;gap:12px;flex-wrap:wrap}
.lg-fast{color:#eab308}.lg-slow{color:#3b82f6}.lg-trend{color:#a855f7}
.hamb{display:none;background:transparent;border:none;color:var(--txt);font-size:20px;padding:2px 8px}

@media(max-width:900px){
  .pricestrip{grid-template-columns:repeat(2,1fr)}
  .hamb{display:block}
  .hide-sm{display:none}
  .shell{flex-direction:column;padding:12px}
  .side{position:fixed;top:0;left:0;bottom:0;width:220px;background:var(--panel);
    border-right:1px solid var(--line);flex-direction:column;z-index:50;padding:60px 10px 10px;
    transform:translateX(-100%);transition:transform .2s;box-shadow:0 0 40px rgba(0,0,0,.6)}
  .side.open{transform:translateX(0)}
  .side button{font-size:15px;padding:13px 14px}
  .content{width:100%}
  .land-copy h1{font-size:28px}
  .btnrow.big button{font-size:15px;padding:12px}
}
@media(max-width:520px){ .tiles{grid-template-columns:1fr 1fr}.pricestrip{grid-template-columns:1fr 1fr} }

/* ---- multi-select symbol dropdown ---- */
.msel{position:relative}
.msel-head{background:var(--chip);border:1px solid var(--line);border-radius:9px;padding:9px 11px;
  display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-size:13px}
.msel-head:hover{border-color:var(--accent)}
.msel-panel{position:absolute;z-index:30;top:calc(100% + 4px);left:0;right:0;background:var(--panel2);
  border:1px solid var(--line);border-radius:10px;padding:6px;max-height:230px;overflow:auto;
  box-shadow:0 14px 34px rgba(0,0,0,.55)}
.msel-opt{display:flex;align-items:center;gap:9px;padding:8px 9px;border-radius:7px;color:var(--txt);font-size:13px;cursor:pointer}
.msel-opt:hover{background:var(--panel)}
.msel-opt input{width:auto}

.welcome{font-size:20px;font-weight:800;margin:2px 0 16px}

/* ---- paper vs live comparison ---- */
.pcompare{background:var(--chip);border:1px solid var(--line);border-radius:12px;padding:14px}
.pcompare.live{border-left:3px solid var(--green)}
.pcompare.paper{border-left:3px solid var(--amber)}
.pcompare .v{font-size:22px;font-weight:800;margin:4px 0}

/* ---- toast notifications ---- */
.toasts{position:fixed;right:16px;bottom:16px;z-index:9999;display:flex;flex-direction:column;gap:10px;max-width:min(360px,90vw)}
.toast{display:flex;gap:10px;align-items:flex-start;background:var(--panel2);border:1px solid var(--line);
  border-left:4px solid var(--accent);border-radius:10px;padding:12px 14px;font-size:13px;color:var(--txt);
  box-shadow:0 12px 30px rgba(0,0,0,.5);cursor:pointer;animation:toastIn .22s ease;transition:opacity .3s,transform .3s}
.toast.ok{border-left-color:var(--green)}
.toast.error{border-left-color:var(--red)}
.toast.warn{border-left-color:var(--amber)}
.toast .tx{flex:1;line-height:1.4;word-break:break-word}
@keyframes toastIn{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:none}}
@media(max-width:520px){.toasts{left:12px;right:12px;bottom:12px;max-width:none}}

/* ---- brand logo ---- */
.brand{display:inline-flex;align-items:center;gap:8px}
.logo-img{height:26px;width:auto;display:block;border-radius:6px}
.logo-img.big{height:34px}

/* ---- landing conversion copy ---- */
.land-feats li{padding:9px 0;font-size:14.5px;line-height:1.5;border-bottom:1px solid rgba(255,255,255,.04)}
.land-feats li b{color:var(--txt)}
.cta-line{margin:18px 0 6px;padding:12px 14px;background:linear-gradient(90deg,rgba(249,115,22,.14),transparent);
  border:1px solid var(--accent);border-radius:10px;font-size:15px;color:var(--txt)}