:root{
  --bg:#0c1018; --panel:#151b27; --panel2:#1b2231; --line:#26303f;
  --txt:#e6ecf5; --muted:#8a97aa; --blue:#4f8cff; --green:#19c37d;
  --red:#ff5d6c; --yellow:#ffcc55; --chip:#222c3c;
}
*{box-sizing:border-box}
body{margin:0;font-family:'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--txt);font-size:14px}
h1,h3{margin:0}
.hidden{display:none!important}

/* buttons / inputs */
.btn{border:none;border-radius:7px;padding:8px 14px;font-weight:600;cursor:pointer;font-size:13px}
.btn-blue{background:var(--blue);color:#fff}
.btn-green{background:var(--green);color:#04231a}
.btn-red{background:var(--red);color:#3a0009}
.btn-gray{background:#34405336;color:var(--txt)}
.btn-ghost{background:transparent;color:var(--txt);border:1px solid var(--line)}
.btn:hover{filter:brightness(1.1)}
.inp{background:var(--panel2);border:1px solid var(--line);color:var(--txt);border-radius:7px;padding:8px 10px;font-size:13px;width:100%;margin:4px 0}
.inp-sm{width:auto;margin:0}

/* login */
.login-body{display:flex;align-items:center;justify-content:center;height:100vh}
.login-card{background:var(--panel);padding:36px 34px;border-radius:14px;width:330px;border:1px solid var(--line);text-align:center}
.login-card h1{font-size:26px;letter-spacing:1px}
.login-card h1 span{color:var(--blue)}
.login-card .sub{color:var(--muted);margin:4px 0 22px}
.login-card .btn{width:100%;margin-top:10px}
.login-err{background:#3a0d12;color:var(--red);padding:8px;border-radius:7px;margin-bottom:10px;font-size:13px}

/* topbar */
.topbar{display:flex;align-items:center;gap:18px;padding:10px 18px;background:var(--panel);border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{font-size:18px;font-weight:800;letter-spacing:.5px}
.brand span{color:var(--blue)}
.ticker .lbl,.pnl-top .lbl{color:var(--muted);font-size:11px;margin-right:6px}
.ticker .val{font-weight:700;font-size:16px}
.pnl-top{margin-left:auto}
.pnl-top .val{font-weight:800;font-size:16px}
.status{display:flex;gap:8px}
.pill{padding:4px 10px;border-radius:20px;font-size:11px;font-weight:700;letter-spacing:.5px}
.pill-red{background:#3a0d12;color:var(--red)}
.pill-green{background:#0c2c20;color:var(--green)}
.pill-gray{background:#222c3c;color:var(--muted)}
.right{display:flex;align-items:center;gap:10px}
.user{color:var(--muted);font-size:13px}
.broker-btn{position:relative}
.broker-dot{position:absolute;top:-4px;right:-4px;width:11px;height:11px;border-radius:50%;background:var(--red);border:2px solid var(--panel);box-shadow:0 0 6px rgba(255,93,108,.9)}
.pos{color:var(--green)} .neg{color:var(--red)}

/* strategy cards */
.strategies{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:16px}
.scard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}
.scard.running{border-color:var(--green)}
.scard.halted{border-color:var(--red)}
.scard-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.scard-head h3{font-size:15px}
.scard-head .sub{color:var(--muted);font-size:12px}
.badge{padding:3px 9px;border-radius:6px;font-size:11px;font-weight:700}
.badge-call{background:#0c2c20;color:var(--green)}
.badge-put{background:#3a1020;color:#ff86b0}
.scard-row{display:flex;justify-content:space-between;padding:3px 0;font-size:13px}
.scard-row .k{color:var(--muted)}
.scard-stats{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin:10px 0;text-align:center}
.stat{background:var(--panel2);border-radius:8px;padding:8px}
.stat .n{font-size:16px;font-weight:800}
.stat .l{font-size:10px;color:var(--muted);text-transform:uppercase}
.scard-msg{font-size:12px;color:var(--yellow);min-height:16px;margin:6px 0}
.scard-btns{display:flex;gap:8px;margin-top:8px}
.scard-btns .btn{flex:1}
.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px 10px;margin-top:10px}
.settings-grid label{font-size:11px;color:var(--muted);display:block}
.settings-grid .inp{margin:2px 0}
.toggle{margin-top:8px}

/* grid panels */
.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:0 16px 24px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--line)}
.panel-head h3{font-size:14px}
.tbl{width:100%;border-collapse:collapse;font-size:12px}
.tbl th{background:var(--panel2);color:var(--muted);text-align:left;padding:8px 10px;font-weight:600;position:sticky;top:0}
.tbl td{padding:7px 10px;border-top:1px solid var(--line)}
.tbl tbody{display:block;max-height:260px;overflow-y:auto}
.tbl thead,.tbl tbody tr{display:table;width:100%;table-layout:fixed}
.event-log{height:260px;overflow-y:auto;padding:10px 14px;font-family:monospace;font-size:12px;line-height:1.7}
.event-log .t{color:var(--muted);margin-right:8px}

/* modal */
.modal-overlay{position:fixed;inset:0;background:rgba(4,7,12,.72);display:flex;align-items:center;justify-content:center;z-index:1000}
.modal{background:var(--panel);border:1px solid var(--line);border-radius:14px;width:420px;max-width:92vw;padding:20px 22px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.modal-head h3{font-size:16px}
.modal-x{background:none;border:none;color:var(--muted);font-size:18px;cursor:pointer}
.modal-x:hover{color:var(--txt)}
.modal-section{padding:12px 0;border-top:1px solid var(--line)}
.modal-section label{font-size:12px;color:var(--muted);display:block;margin-bottom:4px}
.row-btns{display:flex;gap:8px;margin-top:8px}
.row-btns .btn{flex:1}
.broker-msg{font-size:12px;color:var(--yellow);margin-top:8px;min-height:16px;word-break:break-word}
.broker-list{font-size:13px}

@media(max-width:1050px){.strategies,.grid{grid-template-columns:1fr}}