/* OptionLAB — système visuel, sans dépendance externe. */
:root{--navy:#002454;--deep:#031d3e;--mint:#40bfaf;--mint-light:#e8f7f4;--ink:#102e50;--muted:#596d85;--line:#dce5ed;--paper:#f6f8fb;--white:#fff;--radius:12px;--ease:cubic-bezier(.2,.7,.2,1)}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.5 "Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}button{color:inherit}a{color:inherit}button{border:0}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #128675;outline-offset:4px}button:disabled{opacity:.6;cursor:wait}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip{position:absolute;left:20px;top:-100px;z-index:10;background:white;padding:12px}.skip:focus{top:12px}.header{display:flex;align-items:center;gap:36px;padding:0 4.5%;background:var(--navy);color:white;min-height:84px}.brand{position:relative;width:220px;height:50px;overflow:hidden;flex-shrink:0}.brand img{position:absolute;width:300px;height:300px;max-width:none;left:-44px;top:-118px}.navigation{align-self:stretch;display:flex;gap:24px;flex:1}.navigation button{position:relative;background:transparent;color:#c9d7e6;font-size:13px;white-space:nowrap;padding:0 6px;transition:color .2s}.navigation button>span:first-child{display:none}.navigation button[aria-selected=true]{color:#63ddcd}.navigation button:after{content:"";position:absolute;bottom:0;left:0;right:0;height:4px;border-radius:4px 4px 0 0;background:var(--mint);transform:scaleX(0);transition:transform .3s var(--ease)}.navigation button[aria-selected=true]:after{transform:scaleX(1)}.guide{padding:9px 0;background:transparent;color:white;display:flex;gap:18px;font-size:13px}.mobile-name{display:none}main{max-width:1480px;padding:0 5%;margin:auto}.intro{display:flex;justify-content:space-between;align-items:flex-end;padding:54px 0 38px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:650;margin:0 0 12px;color:var(--muted)}h1{font-size:clamp(38px,4vw,62px);letter-spacing:-2.8px;line-height:1.04;font-weight:600;margin:0}h1 em{font-style:normal;color:#1a9486}h1 br{display:none}.intro-copy{font-size:16px;color:var(--muted);margin:17px 0 0}.intro-aside{display:flex;gap:8px;align-items:center;max-width:200px;flex-wrap:wrap;font-size:11px;color:var(--muted);padding-bottom:3px}.status-dot{width:7px;height:7px;background:var(--mint);border-radius:50%}.aside-line{width:100%;height:1px;background:var(--line);margin:3px 0}.workspace{display:grid;grid-template-columns:300px minmax(0,1fr);gap:36px;align-items:start}.scenario{padding:24px;background:white;border:1px solid var(--line);border-radius:var(--radius)}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:22px}h2,h3,p{overflow-wrap:break-word}.section-heading h2{font-size:16px;margin:0;letter-spacing:-.4px}.text-button{padding:5px 0;background:transparent;color:var(--muted);font-size:10px}.contract{display:flex;padding:4px;gap:4px;background:#f0f4f8;border-radius:8px;margin-bottom:24px}.contract button{padding:8px 4px;background:transparent;border-radius:6px;width:50%;font-size:13px;transition:background .2s,color .2s}.contract button[aria-pressed=true]{background:var(--navy);color:white;box-shadow:0 2px 4px #05265015}.contract small{display:block;font-size:9px;opacity:.8;margin-top:1px}.field{margin:0 0 21px}.field-top{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-bottom:8px}.field-top label{font-size:12px}.number-wrap{display:flex;align-items:center;border:1px solid var(--line);border-radius:6px;background:white;padding-right:8px}.number-wrap input{width:82px;min-width:0;padding:6px 2px 6px 6px;text-align:right;font-size:13px;border:0;background:transparent;color:var(--ink);font-variant-numeric:tabular-nums}.number-wrap span{font-size:11px;color:var(--muted);padding-left:4px}.field-symbol{color:#71839b;font-size:10px}input[type=range]{display:block;width:100%;height:6px;border-radius:6px;appearance:none;background:linear-gradient(to right,var(--mint) var(--progress,50%),#e0e7ef var(--progress,50%));margin:12px 0 0;cursor:pointer}input[type=range]::-webkit-slider-thumb{appearance:none;width:16px;height:16px;border-radius:50%;background:var(--mint);border:2px solid white;box-shadow:0 0 0 1px var(--mint)}input[type=range]::-moz-range-thumb{width:13px;height:13px;border-radius:50%;background:var(--mint);border:2px solid white}.market{margin-top:10px;margin-bottom:22px;border-top:1px solid var(--line)}summary{list-style:none}summary::-webkit-details-marker{display:none}.market summary{padding:14px 0;font-size:12px;display:flex;justify-content:space-between}.market[open] summary span{transform:rotate(45deg)}.market .field{margin-top:5px;margin-bottom:18px}.primary{background:var(--mint);color:var(--deep);padding:14px 16px;border-radius:7px;width:100%;font-weight:600;font-size:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;transition:background .2s,transform .2s}.primary:hover{background:#62d4c5;transform:translateY(-1px)}.primary:active{transform:translateY(0)}.primary span{font-size:20px;line-height:1}.form-note{font-size:9px;color:var(--muted);text-align:center;margin:12px 0 0}.field-label{display:flex;justify-content:space-between;font-size:12px;margin:14px 0 7px}#observed,#strategy,#contracts,#multiplier{width:100%;padding:11px;border:1px solid var(--line);border-radius:6px;background:white;color:var(--ink)}#observed-field,#strategy-field,#hedge-field{margin-bottom:20px}.analysis{min-width:0}.analysis-heading{display:flex;justify-content:space-between;align-items:center;gap:10px}.analysis-heading .eyebrow{margin:0 0 9px}.analysis-heading h2{font-size:clamp(22px,2.4vw,34px);line-height:1.15;font-weight:600;letter-spacing:-1.3px;margin:0}.export{background:transparent;color:var(--muted);font-size:11px;white-space:nowrap;padding:10px 0}.export span{margin-left:10px}.description{font-size:13px;margin:12px 0 24px;color:var(--muted)}.result{background:var(--navy);color:white;border-radius:var(--radius);padding:26px 30px;display:flex;align-items:center;justify-content:space-between;gap:16px;overflow:hidden;position:relative}.result p{margin:0;font-size:10px;letter-spacing:1.2px;color:#c4d4e5}.result-line{display:flex;align-items:baseline;gap:22px;flex-wrap:wrap;margin:8px 0}.result strong{font-size:clamp(35px,4vw,58px);letter-spacing:-2px;line-height:1.1;font-weight:550;font-variant-numeric:tabular-nums}.result-line>span{font-size:13px;color:#67e2d0}.result #result-detail{font-size:10px;letter-spacing:0}.result-mark{display:flex;gap:7px;transform:skewY(28deg);opacity:.85;margin-right:12px}.result-mark i{width:9px;height:64px;background:white}.result-mark i:nth-child(2){background:var(--mint)}.result-mark i:last-child{height:44px}.chart-block{background:white;border:1px solid var(--line);border-radius:var(--radius);margin-top:18px;overflow:hidden}.chart-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:20px 24px 0}.chart-heading h3{font-size:12px;margin:0;font-weight:500}.chart-heading>span{font-size:10px;color:var(--muted)}.chart{width:100%;min-height:260px;padding:8px 8px 0}.chart svg{display:block;width:100%;overflow:visible}.chart text{font-family:inherit;font-size:11px;fill:var(--muted)}.chart .line{stroke:var(--mint);stroke-width:3;fill:none;stroke-linejoin:round;stroke-linecap:round}.chart .grid{stroke:#edf1f5;stroke-width:1}.chart .axis{stroke:#bac9d7;stroke-width:1}.chart .spot{stroke:var(--navy);stroke-dasharray:4 4}.chart-legend{display:flex;gap:20px;flex-wrap:wrap;justify-content:center;font-size:10px;color:var(--muted);padding:0 12px 18px}.chart-legend>span{display:flex;align-items:center;gap:7px}.chart-legend i{display:inline-block;width:16px;height:3px;background:var(--mint)}.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);padding:16px 12px}.metric{text-align:center;padding:0 7px;border-right:1px solid var(--line)}.metric:last-child{border-right:0}.metric small{display:block;font-size:10px;color:var(--muted)}.metric strong{font-size:19px;font-weight:600;display:block;font-variant-numeric:tabular-nums;margin-top:4px}.metric .unit{font-size:9px;font-weight:400}.explanation{border-bottom:1px solid var(--line);margin-top:18px}.explanation summary{font-size:12px;display:flex;gap:10px;align-items:center;padding:17px 0}.plus{font-size:18px;font-weight:300;width:22px;height:22px;border:1px solid #9fadb9;border-radius:50%;display:grid;place-items:center;line-height:1;transition:transform .2s}.explanation[open] .plus{transform:rotate(45deg)}.detail-hint{font-size:10px;color:var(--muted);margin-left:auto}.explanation p{font-size:12px;color:var(--muted);line-height:1.8;margin:0 0 18px}.insight{display:flex;align-items:baseline;gap:16px;padding:18px 0 0}.insight-number{font-size:9px;letter-spacing:1px;color:#138878;white-space:nowrap}.insight p{font-size:11px;color:var(--muted);margin:0}.error{color:#a62536;font-size:12px;background:#fff1f1;padding:12px;border-radius:6px}footer{margin:48px 0 20px;border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;gap:15px;font-size:10px;color:var(--muted)}footer p{margin:0}footer span{margin:0 7px;color:var(--mint)}dialog{border:1px solid var(--line);border-radius:16px;padding:30px;max-width:540px;width:calc(100% - 32px);color:var(--ink);max-height:90dvh;overflow:auto}dialog::backdrop{background:#031d3eb0;backdrop-filter:blur(5px)}.dialog-top{display:flex;justify-content:space-between;align-items:center}.close{font-size:28px;background:transparent;width:44px;height:44px}.dialog-top .eyebrow{margin:0}dialog h2{font-size:30px;line-height:1.15;letter-spacing:-1px;margin:20px 0 24px}dt{font-size:13px;font-weight:650;margin:18px 0 4px}dd{margin:0;font-size:12px;color:var(--muted)}.dialog-note{border-top:1px solid var(--line);padding-top:18px;font-size:11px;color:var(--muted);margin-top:22px}.noscript{padding:20px;text-align:center}
/* Apparition progressive : le contenu reste visible sans JS ou en mouvement réduit. */
html.motion .reveal{opacity:0;transform:translateY(18px);transition:opacity .65s var(--ease),transform .65s var(--ease)}html.motion .reveal.is-visible{opacity:1;transform:none}.result.is-updating{animation:result-update .35s var(--ease)}@keyframes result-update{0%{transform:translateY(4px);opacity:.7}100%{transform:none;opacity:1}}
@media(min-width:1500px){.header{padding-left:max(4.5%,calc((100% - 1332px)/2))}}
@media(max-width:1100px){.header{gap:20px;padding:0 3%}.navigation{gap:10px}.navigation button{font-size:12px}.brand{width:200px}main{padding:0 4%}.workspace{grid-template-columns:270px minmax(0,1fr);gap:24px}.scenario{padding:19px}.intro-aside{display:none}.intro{padding-top:38px}.result{padding:24px}.result-mark{display:none}}
@media(max-width:760px){body{padding-bottom:78px}.header{min-height:74px;padding:0 6%;justify-content:space-between}.brand{width:214px}.guide{font-size:12px;min-height:44px;align-items:center}.navigation{position:fixed;bottom:0;left:0;right:0;height:72px;padding-bottom:env(safe-area-inset-bottom,0px);z-index:20;background:white;border-top:1px solid var(--line);gap:0;box-shadow:0 -4px 20px #05265006}.navigation button{color:var(--muted);flex:1;padding:8px 0 6px;font-size:10px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:3px;min-width:0}.navigation button>span:first-child{display:block;font-size:21px;line-height:24px}.navigation button[aria-selected=true]{color:#087b6d;background:#f0faf7}.navigation button:after{bottom:auto;top:0;left:20%;right:20%;height:3px}.desktop-name{display:none}.mobile-name{display:inline}main{padding:0 6%}.intro{padding:28px 0}.intro h1{font-size:40px;letter-spacing:-1.8px}.intro h1 br{display:block}.intro .eyebrow{font-size:9px;letter-spacing:1.6px}.intro-copy{font-size:13px;margin-top:12px}.intro-copy br{display:none}.workspace{display:flex;flex-direction:column;gap:24px}.scenario{width:100%;order:2;padding:22px}.analysis{width:100%;display:contents}.analysis-heading{order:0;width:100%}.analysis-heading h2{font-size:25px;letter-spacing:-.8px}.analysis-heading .eyebrow{font-size:9px}.description{order:0;margin:-12px 0 -4px;font-size:12px;width:100%}.result{order:1;width:100%;padding:24px}.result strong{font-size:46px}.result-line{gap:15px}.result-line>span{font-size:12px}.chart-block{order:3;width:100%;margin-top:0}.explanation{order:4;width:100%;margin-top:0}.insight{order:5;padding-top:0}.chart-heading{padding:18px 16px 0}.chart-heading>span{font-size:9px}.detail-hint{display:none}.field{margin-bottom:25px}.field-top label{font-size:13px}.number-wrap input{font-size:16px;width:100px;min-height:40px}input[type=range]{height:8px;margin-top:8px}input[type=range]::-webkit-slider-thumb{width:22px;height:22px}input[type=range]::-moz-range-thumb{width:18px;height:18px}.contract button{padding:11px 5px;font-size:14px}.contract small{font-size:10px}.primary{min-height:48px;font-size:13px}.text-button{font-size:11px;min-height:44px}.market summary{min-height:48px;align-items:center;font-size:13px}#observed,#strategy,#contracts,#multiplier{font-size:16px;min-height:48px}.field-label{font-size:13px}.form-note{font-size:10px}.metrics{padding:15px 5px}.metric strong{font-size:17px}.chart{padding-left:0;padding-right:0}.chart-legend{font-size:10px}footer{flex-direction:column;margin-top:30px;font-size:10px;gap:8px}.export{min-height:44px}.explanation summary{min-height:48px}.result-mark{display:flex;margin-right:5px}.result-mark i{width:6px;height:45px}.result-mark i:last-child{height:30px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}html.motion .reveal{opacity:1;transform:none}}