:root{
  --bg:#0d1117; --panel:#161b22; --panel2:#1c2330; --border:#2a3140;
  --text:#e6edf3; --muted:#8b949e; --accent:#2f81f7; --green:#3fb950;
  --red:#f85149; --yellow:#d29922; --purple:#a371f7;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);font-size:14px}
a{color:var(--accent);text-decoration:none}
h1,h2,h3,h4{margin:0 0 10px}
.muted{color:var(--muted)}
.mono,.mono *{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
code{background:var(--panel2);padding:2px 6px;border-radius:5px;font-family:ui-monospace,monospace;color:#79c0ff}

/* nav */
.nav{display:flex;align-items:center;gap:20px;background:var(--panel);
  border-bottom:1px solid var(--border);padding:0 20px;height:56px;position:sticky;top:0;z-index:50}
.brand{font-weight:700;letter-spacing:.3px}
.brand span{color:var(--accent)}
.brand em{color:var(--muted);font-style:normal;font-size:11px;margin-left:4px}
.nav .links{display:flex;gap:6px;align-items:center;flex:1}
.nav .links>a,.dropbtn{padding:8px 12px;border-radius:8px;color:var(--text);cursor:pointer;display:inline-block}
.nav .links>a:hover,.dropbtn:hover{background:var(--panel2)}
.nav .links .active{background:var(--accent);color:#fff}
.navright{display:flex;align-items:center;gap:12px}
.user{color:var(--muted)}
.dropdown{position:relative}
.dropdown-content{display:none;position:absolute;top:42px;left:0;background:var(--panel2);
  border:1px solid var(--border);border-radius:10px;min-width:200px;padding:6px;z-index:60}
.dropdown:hover .dropdown-content{display:block}
.dropdown-content a{display:block;padding:8px 10px;border-radius:6px}
.dropdown-content a:hover{background:var(--panel)}

/* layout */
.container{max-width:1280px;margin:0 auto;padding:20px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:16px}
.grid{display:grid;gap:16px}
.grid.two{grid-template-columns:1fr 1fr}
.grid.metrics{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid.two,.grid.metrics{grid-template-columns:1fr}}

/* topbar */
.topbar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:16px}
.status-chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:5px 10px;border-radius:20px;font-size:12px;font-weight:600;background:var(--panel2);border:1px solid var(--border)}
.chip.on{background:rgba(63,185,80,.15);color:var(--green);border-color:var(--green)}
.chip.off{background:rgba(248,81,73,.15);color:var(--red);border-color:var(--red)}
.chip.ok{background:rgba(63,185,80,.15);color:var(--green)}
.chip.paper{background:rgba(210,153,34,.15);color:var(--yellow);border-color:var(--yellow)}
.chip.live{background:rgba(248,81,73,.15);color:var(--red);border-color:var(--red)}
.controls{display:flex;gap:8px;flex-wrap:wrap}
.controls form{margin:0}

/* buttons */
.btn{border:1px solid var(--border);background:var(--panel2);color:var(--text);
  padding:8px 14px;border-radius:8px;cursor:pointer;font-size:13px;font-weight:600}
.btn:hover{filter:brightness(1.15)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn.sm{padding:5px 10px;font-size:12px}
.btn.block{width:100%;margin-top:10px}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-success{background:var(--green);border-color:var(--green);color:#04260f}
.btn-warn{background:var(--yellow);border-color:var(--yellow);color:#3d2c00}
.btn-danger{background:var(--red);border-color:var(--red);color:#fff}
.btn-ghost{background:transparent}

/* metrics */
.metric{display:flex;flex-direction:column;gap:4px}
.m-label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.m-val{font-size:26px;font-weight:700}
.m-val.small{font-size:18px}
.pos{color:var(--green)}.neg{color:var(--red)}

/* tables */
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{text-align:left;color:var(--muted);font-weight:600;padding:8px;border-bottom:1px solid var(--border)}
.tbl td{padding:8px;border-bottom:1px solid var(--border)}
.tbl tr:hover td{background:var(--panel2)}
.sell{color:var(--red);font-weight:600}.buy{color:var(--green);font-weight:600}
.leg{font-size:11px;padding:2px 6px;border-radius:5px;background:var(--panel2)}
.leg.SHORT_CE,.leg.SHORT_PE{color:var(--red)}
.leg.LONG_CE,.leg.LONG_PE{color:var(--green)}
.badge{font-size:11px;padding:2px 8px;border-radius:20px}
.badge.open{background:rgba(63,185,80,.15);color:var(--green)}
.badge.closed{background:rgba(139,148,158,.2);color:var(--muted)}

/* forms */
label{display:block;margin:10px 0 4px;color:var(--muted);font-size:12px}
input,select{width:100%;padding:9px 11px;background:var(--bg);border:1px solid var(--border);
  border-radius:8px;color:var(--text);font-size:14px}
input[type=checkbox]{width:auto}
input:focus,select:focus{outline:none;border-color:var(--accent)}
.settings-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px 16px}
@media(max-width:900px){.settings-grid{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column}

/* login */
.login-wrap{min-height:80vh;display:flex;align-items:center;justify-content:center}
.login-card{width:360px;text-align:center}
.hint{margin-top:12px;font-size:12px}

/* flashes / notes */
.flash{padding:10px 14px;border-radius:8px;margin-bottom:12px;font-size:13px}
.flash-success{background:rgba(63,185,80,.12);color:var(--green);border:1px solid var(--green)}
.flash-error{background:rgba(248,81,73,.12);color:var(--red);border:1px solid var(--red)}
.note{margin-top:14px;padding:12px;background:var(--panel2);border-radius:8px;font-size:12px;color:var(--muted);line-height:1.6}
.empty{padding:20px 0;text-align:center}
.row-actions{display:flex;gap:6px;align-items:center}
.row-actions form{margin:0}

/* logs */
.loglist{max-height:320px;overflow:auto;font-size:12px;font-family:ui-monospace,monospace}
.loglist.tall{max-height:600px}
.logrow{padding:4px 0;border-bottom:1px solid var(--border)}
.lvl{display:inline-block;width:52px;font-weight:700}
.lvl.info{color:var(--accent)}.lvl.warn{color:var(--yellow)}.lvl.error{color:var(--red)}
.filelist{display:flex;gap:8px;flex-wrap:wrap}
.steps{color:var(--muted);line-height:1.8;font-size:13px}

/* modal */
.modal-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:100;
  align-items:center;justify-content:center}
.modal-backdrop.show{display:flex}
.modal{width:460px;max-width:90vw}
.modal-actions{display:flex;gap:10px;margin-top:16px}