*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#eef2f9;
  --card:#ffffff;
  --border:#d6dce8;
  --text:#1a2333;
  --muted:#66748b;
  --blue:#1e88e5;
  --green:#00c853;
  --red:#d32f2f;
  --red-bg:#ffebee;
  --green-bg:#e8f5e9;
}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.4}
.container{max-width:1150px;margin:0 auto;padding:18px}
header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
h1{font-size:22px;font-weight:800}
.subtitle{font-weight:400;color:var(--muted);font-size:14px;margin-left:8px}
.hint{font-size:12px;color:var(--muted);background:var(--card);border:1px solid var(--border);padding:6px 10px;border-radius:999px}

.panel{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px 16px;margin-bottom:14px;box-shadow:0 2px 8px rgba(20,40,80,.05)}
.panel-title{font-weight:800;font-size:14px;text-transform:uppercase;letter-spacing:.04em;margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.graph-subtitle{font-weight:400;text-transform:none;color:var(--muted)}
.graph-stats{margin-left:auto;font-size:12px;color:var(--muted);font-weight:600}

/* Simular */
.simular-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:800px){.simular-grid{grid-template-columns:1fr}}
.control-group label{font-size:13px;font-weight:700;display:block;margin-bottom:6px}
.label-hint{font-weight:400;color:var(--muted);font-size:11px;margin-left:6px}
.input-row{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.input-row input[type=number]{width:120px;padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-weight:700}
.current-badge{background:#0d47a1;color:#fff;padding:6px 10px;border-radius:8px;font-weight:800;font-size:13px}
.slider-row{display:flex;align-items:center;gap:8px}
.slider-row input[type=range]{flex:1;accent-color:var(--blue)}
.slider-label{font-size:11px;color:var(--muted);min-width:24px}
.range-info,.dte-info{font-size:11px;color:var(--muted);white-space:nowrap}
.time-hint{font-size:11px;color:var(--muted);margin-top:6px}

/* Agregar */
.agregar-desc{font-size:12px;color:var(--muted);margin-bottom:10px}
.add-form{display:flex;flex-wrap:nowrap;gap:8px;align-items:end}
@media(max-width:1100px){.add-form{flex-wrap:wrap}}
.field{display:flex;flex-direction:column;gap:4px;flex:1 1 0}
.field label{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);line-height:1.1;min-height:26px}
.field input,.field select{padding:9px 10px;border:1px solid var(--border);border-radius:8px;min-width:0;width:100%;font-size:14px}
.field-narrow{flex:0 0 78px;max-width:78px}
.field-medium{flex:0 0 118px;max-width:118px}
.field-wide{flex:1 1 145px}
.field small{font-size:10px;color:var(--muted)}
.btn{padding:10px 14px;border-radius:8px;border:1px solid transparent;font-weight:800;cursor:pointer;font-size:13px}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{filter:brightness(1.05)}
.btn-ghost{background:#eef2f9;border-color:var(--border);color:var(--text)}
.btn-sm{padding:6px 10px;font-size:11px;border-radius:999px}
.quick-spot{display:flex;align-items:center;gap:6px;margin-top:6px;flex-wrap:wrap}
.quick-spot small{font-size:11px;color:var(--muted)}
.pnl-pos{color:var(--green);font-weight:800}
.pnl-neg{color:var(--red);font-weight:800}
.pnl-flat{color:var(--muted);font-weight:700}
.form-error{color:var(--red);font-size:12px;margin-top:8px;min-height:16px}
.inferencia-box{margin-top:8px;font-size:12px;background:#f6f8ff;border:1px dashed #b6c4e0;border-radius:8px;padding:8px 10px;color:#2a3a5a;min-height:18px}
.inferencia-box:empty{display:none}

/* Graph */
.canvas-wrap{position:relative;background:#f7f9ff;border:1px solid var(--border);border-radius:10px;overflow:hidden}
#plCanvas{width:100%;height:auto;display:block}
.graph-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--muted);font-weight:700;background:rgba(247,249,255,.85)}
.strikes-bar{display:flex;align-items:center;gap:8px;margin-bottom:8px;flex-wrap:wrap}
.strikes-label{font-size:11px;font-weight:800;color:var(--muted)}
.strikes-track{display:flex;gap:6px;flex-wrap:wrap}
.strike-pill{padding:4px 8px;border-radius:999px;font-size:11px;font-weight:800;color:#fff;display:inline-flex;align-items:center;gap:4px}
.strike-pill.put{background:var(--red)}
.strike-pill.call{background:var(--green)}
.strike-pill .leg{font-weight:400;opacity:.9;font-size:10px}
.breakeven-info{margin-top:8px;font-size:12px;color:var(--muted);font-weight:600}

/* Table */
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
thead th{font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);text-align:left;padding:10px 8px;border-bottom:2px solid var(--border);white-space:nowrap}
tbody td{padding:10px 8px;border-bottom:1px solid #eef2f9;white-space:nowrap}
.empty-row td{text-align:center;color:var(--muted);padding:18px}
.badge-vert{background:#e3f2fd;color:#0d47a1;padding:3px 8px;border-radius:999px;font-weight:800;font-size:11px}
.price-credit{color:var(--green);font-weight:800}
.price-debit{color:var(--red);font-weight:800}
.sim-val{font-weight:800;padding:4px 8px;border-radius:6px}
.sim-credit{background:#e8f5e9;color:#1b5e20}
.sim-debit{background:#ffebee;color:#b71c1c}
.leg-detail{font-size:11px;color:var(--muted);line-height:1.3}
.leg-detail b{color:var(--text)}
.btn-del{background:#ffebee;color:var(--red);border:1px solid #ffcdd2;padding:6px 10px;border-radius:8px;cursor:pointer;font-weight:700}
.btn-del:hover{background:#ffcdd2}
.sim-label{color:var(--blue)}
footer{margin-top:6px;color:var(--muted);font-size:11px;text-align:center}