:root{color:#1e293b;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;background-color:#f1f5f9;font-family:Inter,system-ui,-apple-system,sans-serif;font-weight:400;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;margin:0}.app{background:#f1f5f9;flex-direction:column;height:100vh;display:flex;overflow:hidden}.app-header{text-align:center;background:#fff;flex-shrink:0;padding:1rem 1.5rem .85rem;position:relative}.header-center h1{color:#0f172a;font-size:1.35rem;font-weight:700}.header-center p{color:#94a3b8;margin-top:.25rem;font-size:.85rem}.header-nav{color:#475569;font-size:.875rem;font-weight:500;text-decoration:none;transition:color .15s;position:absolute;top:50%;transform:translateY(-50%)}.header-nav:hover{color:#0f172a}.cfq-link{right:1.5rem}.back-link{left:1.5rem}.greeks-selector{color:#2563eb;cursor:pointer;white-space:nowrap;background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;padding:.4rem 2rem .4rem .7rem;font-size:.8rem;font-weight:600}.greeks-selector:hover,.greeks-selector:focus{background:#dbeafe;border-color:#93c5fd}.greeks-selector-row{justify-content:flex-end;display:flex}.ask-assistant-panel{z-index:1000;background:#fff;border:1px solid #e2e8f0;border-radius:12px;flex-direction:column;width:340px;max-width:calc(100vw - 2rem);height:min(520px,100vh - 5.5rem);display:flex;position:fixed;top:4.5rem;right:1rem;overflow:hidden;box-shadow:0 8px 30px #0f172a1f}.ask-assistant-header{background:#f8fafc;border-bottom:1px solid #f1f5f9;justify-content:space-between;align-items:center;padding:.75rem 1rem;display:flex}.ask-assistant-title{color:#0f172a;font-size:.875rem;font-weight:600}.ask-assistant-close{color:#64748b;cursor:pointer;background:0 0;border:none;border-radius:6px;width:28px;height:28px;font-size:1.25rem;line-height:1;transition:background .15s}.ask-assistant-close:hover{color:#0f172a;background:#e2e8f0}.ask-assistant-body{flex-direction:column;flex:1;gap:.75rem;min-height:0;padding:1rem;display:flex;overflow-y:auto}.ask-assistant-messages{flex-direction:column;flex:1;gap:.65rem;min-height:0;padding:.75rem 1rem;display:flex;overflow-y:auto}.ask-assistant-compose{border-top:1px solid #f1f5f9;flex-direction:column;flex-shrink:0;gap:.5rem;padding:.75rem 1rem 1rem;display:flex}.ask-message{border-radius:10px;max-width:92%;padding:.55rem .75rem;font-size:.8rem;line-height:1.55}.ask-message p{margin:0 0 .25rem}.ask-message p:last-child{margin-bottom:0}.ask-message-user{color:#1e3a8a;background:#eff6ff;border:1px solid #bfdbfe;align-self:flex-end}.ask-message-assistant{color:#334155;background:#f8fafc;border:1px solid #e2e8f0;align-self:flex-start}.ask-assistant-loading{color:#94a3b8;margin:0;font-size:.78rem}.ask-assistant-session-hint{color:#2563eb;background:#eff6ff;border:1px solid #bfdbfe;border-radius:6px;margin:0 0 .25rem;padding:.35rem .6rem;font-size:.72rem}.ask-assistant-hint{color:#94a3b8;flex-shrink:0;margin:0;font-size:.75rem;line-height:1.55}.ask-assistant-input{color:#1e293b;resize:none;box-sizing:border-box;border:1px solid #e2e8f0;border-radius:8px;width:100%;min-height:72px;padding:.65rem .75rem;font-family:inherit;font-size:.875rem;line-height:1.55}.ask-assistant-input:focus{border-color:#3b82f6;outline:none;box-shadow:0 0 0 3px #3b82f626}.ask-assistant-input::placeholder{color:#cbd5e1}.ask-assistant-footer{display:none}.ask-assistant-send{color:#fff;cursor:pointer;background:#2563eb;border:none;border-radius:8px;width:100%;padding:.55rem 1rem;font-size:.875rem;font-weight:600;transition:background .15s}.ask-assistant-send:hover:not(:disabled){background:#1d4ed8}.ask-assistant-send:disabled{cursor:not-allowed;background:#cbd5e1}.cfq-page{background:#f1f5f9;flex:1;justify-content:center;align-items:center;min-height:0;display:flex}.cfq-empty{color:#94a3b8;font-size:.9rem}.split-layout{align-items:stretch;min-height:100%;display:flex}.home-page{flex-direction:column;min-height:100%;display:flex}.seo-intro{background:#f8fafc;flex-shrink:0;padding:.75rem 1.25rem}.seo-intro p{color:#64748b;text-align:center;border:1px solid #cbd5e1;border-radius:8px;max-width:960px;margin:0 auto;padding:.65rem 1rem;font-size:.8rem;line-height:1.65}.seo-intro strong{color:#475569;font-weight:600}.home-formula-wrap{box-sizing:border-box;align-self:flex-start;width:40%;padding:2.5rem 1.25rem 1.5rem}.bs-formula-box{background:#fff;border:1px solid #e2e8f0;border-radius:10px;width:100%;margin:0;padding:1.25rem 1rem}.bs-formula-title{color:#334155;text-align:left;margin-bottom:.75rem;font-size:.9rem;font-weight:600}.bs-formula-body{color:#475569;text-align:left;font-size:.85rem;line-height:1.85}.bs-formula-body p{margin:.25rem 0}.bs-formula-body strong{color:#334155;font-weight:600}.bs-formula-where{color:#64748b;margin-top:.65rem!important}.bs-formula-note{color:#94a3b8;font-size:.8rem;margin-top:.5rem!important}.app-main{background:#f1f5f9;flex:1;min-height:0;overflow-y:auto}.app-footer{text-align:center;color:#94a3b8;background:#fff;border-top:1px solid #e2e8f0;flex-shrink:0;margin-top:.75rem;padding:1.5rem 1rem 1rem;font-size:.75rem}.app-footer a{color:inherit;text-decoration:none}.app-footer a:hover{color:#64748b;text-decoration:underline}.hidden{display:none}.panel-left{background:#fff;border-right:1px solid #e2e8f0;flex-direction:column;flex:0 0 40%;gap:0;min-width:0;display:flex}.sidebar-section{border-bottom:1px solid #f1f5f9;padding:1rem 1.25rem}.sidebar-section:first-child{background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;margin:50pt 1rem 0;padding:1rem 1.25rem;box-shadow:0 4px 12px #0f172a0f}.sidebar-section h2{text-transform:uppercase;letter-spacing:.04em;color:#94a3b8;margin-bottom:.75rem;font-size:.75rem;font-weight:600}.panel-right{flex-direction:column;flex:1;gap:.75rem;min-width:0;padding:1rem 1.25rem 1.5rem;display:flex}.display-toolbar{flex-direction:column;flex-shrink:0;align-items:stretch;gap:.5rem;display:flex}.view-mode-row{justify-content:center;width:100%;display:flex}.metric-row{width:100%}.formula-panel{background:#fff;border-radius:8px;width:min(100%,430px);margin:0 auto;padding-top:.35rem}.formula-image-row{justify-content:center;align-items:center;gap:0;min-height:32px;display:flex}.formula-image{object-fit:contain;max-width:min(100%,480px);max-height:108px;display:block}.formula-image-with-range{max-width:calc(100% - 50px)}.formula-range{color:#475569;word-spacing:0;flex-shrink:0;font-size:1.1rem;font-style:italic;font-weight:500}.formula-definitions{color:#475569;text-align:left;margin-top:.25rem;padding:0 20px .75rem 60pt;font-size:.875rem;line-height:1.5}.formula-definitions p{margin:0}.formula-definitions.formula-definitions-sensitivity{padding-left:100pt}.formula-definition-note{font-size:.75rem}.display-area{background:#fff;border-radius:12px;flex-direction:column;min-height:480px;padding:1rem 1.25rem;display:flex;box-shadow:0 1px 3px #00000014}.chart-view-mode-row{margin-bottom:.75rem}.display-empty{color:#94a3b8;flex:1;justify-content:center;align-items:center;font-size:.9rem;display:flex}.chart-view{flex-direction:column;min-height:420px;display:flex}.chart-fill{flex:1;min-height:400px}.input-form,.field-stack{flex-direction:column;gap:.85rem;display:flex}.mode-switch{background:#f1f5f9;border-radius:8px;gap:.5rem;padding:4px;display:flex}.mode-switch button{color:#64748b;cursor:pointer;background:0 0;border:none;border-radius:6px;flex:1;padding:.45rem .5rem;font-size:.8rem;font-weight:500;transition:all .15s}.mode-switch button.active{color:#0f172a;background:#fff;box-shadow:0 1px 3px #0000001a}.field{flex-direction:column;gap:.3rem;display:flex}.field-label{color:#475569;font-size:.78rem;font-weight:500}.field-hint{color:#94a3b8;margin-left:.3rem;font-weight:400}.field input[type=number]{color:#1e293b;background:#fff;border:1px solid #e2e8f0;border-radius:6px;width:100%;padding:.45rem .65rem;font-size:.875rem;transition:border-color .15s}.field input[type=number]:focus{border-color:#3b82f6;outline:none;box-shadow:0 0 0 3px #3b82f626}.type-radio-group{border:none;flex-direction:column;gap:.5rem;margin:0;padding:0;display:flex}.type-radio-group legend{margin-bottom:.35rem}.type-radio-row{flex-wrap:wrap;gap:1rem 1.25rem;display:flex}.type-radio{cursor:pointer;align-items:center;gap:.4rem;display:flex}.type-radio input[type=radio]{accent-color:#0f172a;cursor:pointer;flex-shrink:0;width:15px;height:15px}.type-radio span{color:#94a3b8;font-size:.875rem;font-weight:400;transition:color .15s}.type-radio.selected span{color:#0f172a;font-weight:600}.days-sliders{flex-direction:column;flex-shrink:0;gap:.65rem;margin-bottom:.75rem;display:flex}.days-slider-row{align-items:center;gap:.65rem;display:flex}.days-slider-label{color:#475569;flex-shrink:0;width:88px;font-size:.78rem;font-weight:500}.days-slider-value{color:#059669;font-variant-numeric:tabular-nums;flex-shrink:0;width:48px;font-size:.78rem;font-weight:600}.days-slider-row input[type=range]{accent-color:#059669;cursor:pointer;width:140px;max-width:140px}.result-panel{padding:0}.result-panel.error{color:#dc2626;background:#fef2f2;border-radius:8px;padding:.65rem .75rem;font-size:.85rem}.result-grid{grid-template-columns:repeat(3,1fr);gap:.4rem;display:grid}.result-item{background:#f8fafc;border-radius:8px;flex-direction:column;gap:.1rem;min-width:0;padding:.45rem .35rem;display:flex}.result-item.highlight{background:#eff6ff;border:1px solid #bfdbfe}.result-label{color:#64748b;font-size:.62rem;font-weight:500;line-height:1.2}.result-value{color:#0f172a;font-variant-numeric:tabular-nums;font-size:.82rem;font-weight:700}.view-tabs{background:#e2e8f0;border-radius:10px;gap:0;width:280px;padding:4px;display:flex}.view-tabs button{color:#64748b;cursor:pointer;background:0 0;border:none;border-radius:7px;flex:1;padding:.55rem 1.5rem;font-size:.95rem;font-weight:600;transition:all .15s}.view-tabs button.active{color:#0f172a;background:#fff;box-shadow:0 1px 2px #00000014}.metric-tabs{justify-content:center;gap:.75rem;display:flex}.metric-tabs button{color:#64748b;cursor:pointer;background:#fff;border:1px solid #e2e8f0;border-radius:20px;padding:.5rem 1rem;font-size:.875rem;transition:all .15s}.metric-tabs button.active{color:#fff;background:#0f172a;border-color:#0f172a}.metric-tabs .metric-tab-delta,.metric-tabs .metric-tab-gamma{min-width:100px}.chart-desc{color:#94a3b8;flex-shrink:0;margin-bottom:.5rem;font-size:.78rem}.chart-panel{flex:1;min-height:0}.surface-hint{text-align:center;color:#94a3b8;flex-shrink:0;margin-top:.25rem;font-size:.72rem}.axis-legend{flex-wrap:wrap;flex-shrink:0;gap:.75rem 1.25rem;margin-bottom:.6rem;display:flex}.axis-legend-item{color:#475569;align-items:center;gap:.4rem;font-size:.78rem;font-weight:500;display:inline-flex}.axis-dot{border-radius:50%;flex-shrink:0;width:10px;height:10px;display:inline-block}@media (width<=768px){.split-layout{flex-direction:column}.app{height:auto;min-height:100vh}.app-main{overflow:visible}.panel-left{border-bottom:1px solid #e2e8f0;border-right:none;flex:none;width:100%;min-width:0;max-width:none;overflow:visible}.home-formula-wrap{align-self:stretch;width:100%}.panel-right{min-height:480px}.display-area{min-height:420px}.formula-definitions{padding-left:1rem;padding-right:1rem}}