:root{--ink:#232730;--muted:#5c626e;--line:#e2e3e8;--ground:#f7f8fa;--gold:#936618;--gold-light:#e8f0eb;--blue:#4568ac;--green:#337163;--purple:#79568e;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font-family:Inter,"Segoe UI",Arial,sans-serif;color:var(--ink);background:#fff;font-size:16px;line-height:1.6}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.17;letter-spacing:-.035em}a{color:inherit}button{font:inherit}a,button,input{touch-action:manipulation}:focus-visible{outline:3px solid #4568ac;outline-offset:5px}a,button{ -webkit-tap-highlight-color:transparent}.container{width:min(var(--max),calc(100% - 64px));margin-inline:auto}.skip{position:fixed;left:16px;top:-100px;background:#fff;padding:10px;z-index:100}.skip:focus{top:12px}.header{position:sticky;top:0;z-index:20;background:#fffffff5;border-bottom:1px solid var(--line)}.header-inner{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:32px}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:24px;font-weight:750;letter-spacing:-.8px;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:36px;height:36px;background:var(--ink);border-radius:9px;color:#e9be68}.brand-mark svg{width:24px;height:24px}.nav{display:flex;align-items:center;gap:28px;margin-left:auto;font-size:14px;font-weight:600}.nav a{text-decoration:none}.nav a:hover{color:var(--gold)}.nav .premium-link{color:var(--gold)}.header-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:13px 22px;border:1px solid transparent;border-radius:8px;text-decoration:none;font-size:14px;font-weight:650;line-height:1.4;transition:background .16s,transform .16s}.button:hover{transform:translateY(-2px)}.button-dark,.header-cta{color:#fff;background:var(--ink)}.button-dark:hover,.header-cta:hover{background:#414650}.button-light{background:#fff;border-color:#d5d7df}.button-light:hover{border-color:var(--ink)}.button-gold{background:#edbd61;color:#332709}.button-gold:hover{background:#e6ad41}.mobile-menu{display:none}.hero{position:relative;overflow:hidden;background:#f6f6fa;padding:70px 0 46px;text-align:center}.hero:before,.hero:after{content:'';position:absolute;border:1px solid #dde8e2;border-radius:50%;width:580px;height:580px;pointer-events:none}.hero:before{left:-460px;top:0}.hero:after{right:-445px;top:40px}.eyebrow{text-transform:uppercase;font-size:11px;letter-spacing:.16em;font-weight:750;color:var(--gold);margin-bottom:18px}.hero h1{font-size:clamp(34px,4.1vw,58px);max-width:960px;margin:auto;line-height:1.1}.hero h1 span{display:block}.hero .lead{max-width:720px;margin:24px auto 0;color:var(--muted);font-size:18px;line-height:1.7}.actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:28px}.trust-line{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;font-size:12px;color:#555d69;margin-top:24px}.trust-line span:before{content:'✓';color:var(--green);font-weight:750;margin-right:7px}.tools-section{background:#f6f6fa;padding:16px 0 62px}.section-top{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.section-top h2{font-size:27px}.section-top p{color:var(--muted);font-size:14px;margin-top:8px}.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}.filter{border:1px solid #d6d8e1;background:#fff;color:#4e5560;border-radius:24px;font-size:13px;padding:8px 17px;cursor:pointer}.filter[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}.tool-count{font-size:12px;color:var(--muted);min-width:105px;text-align:right}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.tool{position:relative;display:flex;flex-direction:column;text-decoration:none;background:white;border:1px solid #dedfe7;border-radius:14px;padding:26px;min-height:250px;transition:border .18s,box-shadow .18s,transform .18s}.tool:hover{transform:translateY(-4px);border-color:#bdc1cc;box-shadow:0 10px 24px #242a3b0b}.tool-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:12px;color:var(--accent);background:var(--tint);margin-bottom:21px}.tool-icon svg{width:27px;height:27px;stroke:currentColor;fill:none;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}.tool h3{font-size:20px;letter-spacing:-.025em;margin-bottom:10px}.tool p{font-size:14px;color:var(--muted);line-height:1.6;max-width:31ch}.tool-go{margin-top:auto;padding-top:20px;display:flex;align-items:center;justify-content:space-between;font-size:12px;font-weight:650;color:var(--accent)}.tool[hidden]{display:none}.section{padding:78px 0}.explain{display:grid;grid-template-columns:1fr 1fr;gap:85px;align-items:center}.section h2{font-size:clamp(29px,3vw,40px);max-width:660px}.section .intro{color:var(--muted);margin-top:20px;max-width:550px;line-height:1.75}.steps{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:22px}.step{display:flex;gap:16px}.step-number{flex:none;width:30px;height:30px;border:1px solid #e0e2e7;border-radius:50%;font-size:12px;font-weight:700;display:grid;place-items:center}.step h3{font-size:16px;letter-spacing:-.01em;margin:3px 0 5px}.step p{font-size:14px;color:var(--muted)}.example-shell{background:#edf5f0;border-radius:20px;padding:30px;position:relative}.example-card{background:#fff;border:1px solid #d7e4dc;border-radius:14px;box-shadow:0 12px 35px #43341a0a;padding:28px}.example-head{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;border-bottom:1px solid #ececf0;padding-bottom:20px}.example-head .dot{width:9px;height:9px;border-radius:50%;background:#c19a4b}.badge{display:inline-flex;font-size:10px;letter-spacing:.05em;text-transform:uppercase;font-weight:700;background:#f0f1f4;color:#565d68;border-radius:4px;padding:5px 8px;margin-left:auto}.formula-visual{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:24px 0;color:#717682;font-size:17px}.formula-visual strong{display:block;color:var(--ink);font-size:24px;font-weight:600;letter-spacing:-.02em}.formula-visual small{font-size:10px;display:block}.fine-result{background:#ecf5f0;border:1px solid #d5e3db;padding:18px;border-radius:9px;display:flex;justify-content:space-between;align-items:center}.fine-result span{color:#71521e;font-size:13px}.fine-result strong{font-size:31px;font-weight:650;letter-spacing:-.04em}.example-values{display:grid;gap:10px;padding-top:20px;font-size:13px}.example-values div{display:flex;justify-content:space-between;gap:10px}.example-values span{color:var(--muted)}.example-values .positive{color:var(--green)}.example-note{font-size:11px;color:#656b73;line-height:1.6;text-align:center;margin:16px 6px 0}.principles{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:32px 0;display:grid;grid-template-columns:repeat(3,1fr);gap:36px}.principles h3{font-size:16px;margin-bottom:8px;letter-spacing:-.01em}.principles p{font-size:13px;color:var(--muted)}.premium-section{padding:75px 0 0}.premium-banner{position:relative;overflow:hidden;background:#fff3d6;border:1px solid #f3e4bc;border-radius:20px;padding:48px 52px;display:grid;grid-template-columns:1.3fr 1fr;gap:46px;align-items:center}.premium-banner h2{font-size:37px;max-width:590px}.premium-banner p{color:#695d45;max-width:580px;margin-top:18px;font-size:15px;line-height:1.8}.status-pill{display:inline-block;padding:5px 10px;border:1px solid #ddc997;border-radius:6px;font-size:10px;letter-spacing:.08em;font-weight:750;color:#775719;margin-bottom:18px;text-transform:uppercase}.premium-banner .button{margin-top:26px}.premium-visual{position:relative;min-height:285px;display:flex;align-items:center;justify-content:center}.premium-visual:before{content:'';position:absolute;border:1px solid #e4c16c;width:290px;height:290px;border-radius:50%;top:0;left:calc(50% - 145px)}.future-card{position:relative;background:#fff;border:1px solid #ccddd3;border-radius:12px;padding:24px;box-shadow:0 14px 28px #6e511314;width:285px;transform:rotate(-3deg)}.future-card h3{font-size:16px;margin:0 0 20px;letter-spacing:-.01em}.future-row{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px solid #eeeef2;font-size:12px}.future-row b{display:grid;place-items:center;background:#f2f5fa;color:var(--blue);width:30px;height:30px;border-radius:8px;font-size:16px}.future-row small{display:block;color:var(--muted);font-size:10px;margin-top:3px}.floating-label{position:absolute;right:-10px;bottom:0;background:#292d36;color:#fff;border:5px solid #fff3d6;border-radius:12px;padding:13px 20px;font-size:12px;transform:rotate(3deg)}.plans-section{padding:70px 0}.plans-heading{text-align:center;margin-bottom:32px}.plans-heading h2{font-size:32px}.plans-heading p{color:var(--muted);font-size:15px;margin-top:13px}.plans{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:940px;margin:auto}.plan{border:1px solid #e0e1e6;border-radius:16px;padding:32px;display:flex;flex-direction:column}.plan.future{border-color:#d7bd7e;background:#fcfcfc}.plan .plan-label{font-size:12px;font-weight:700;color:var(--muted);display:flex;justify-content:space-between;align-items:center}.plan h3{font-size:29px;margin:18px 0 10px}.plan .price-note{font-size:13px;color:var(--muted);min-height:44px}.plan ul{list-style:none;padding:0;margin:26px 0;display:grid;gap:13px;font-size:14px}.plan li{display:flex;gap:10px}.plan li:before{content:'✓';color:var(--green);font-weight:700}.plan.future li:before{content:'◇';color:var(--gold)}.plan .button{margin-top:auto}.future-disclaimer{font-size:12px;color:#6c6454;margin-top:18px;line-height:1.65}.faq-section{background:var(--ground);padding:65px 0}.faq-layout{display:grid;grid-template-columns:1fr 1.65fr;gap:80px}.faq-layout h2{font-size:32px}.faq-layout .intro{font-size:15px;color:var(--muted);margin-top:20px}.faq details{border-bottom:1px solid #dadde4;padding:18px 0}.faq details:first-child{padding-top:0}.faq summary{font-size:15px;font-weight:650;cursor:pointer;padding-right:28px;position:relative;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:'+';position:absolute;right:0;top:-2px;font-size:21px;font-weight:400}.faq details[open] summary:after{content:'−'}.faq details p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:14px}.final-cta{padding:58px 0;text-align:center}.final-cta h2{font-size:29px}.final-cta p{font-size:15px;color:var(--muted);margin-top:12px}.final-cta .button{margin-top:24px}.footer{background:#272b34;color:#e7e9ee;padding:50px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px}.footer-brand .brand-mark{background:#393d46}.footer-brand p{font-size:13px;color:#b5bac5;max-width:250px;margin-top:18px;line-height:1.75}.footer h3{font-size:11px;letter-spacing:.09em;text-transform:uppercase;margin-bottom:18px;color:#e1e3e8}.footer ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}.footer a{font-size:12px;text-decoration:none;color:#c4c9d3}.footer a:hover{color:#fff;text-decoration:underline}.footer .brand{font-size:23px;color:#fff}.footer-bottom{border-top:1px solid #454a54;margin-top:38px;padding-top:22px;display:flex;justify-content:space-between;gap:24px;font-size:11px;color:#b5bac5}.footer-note{font-size:10px;color:#b5bac5;margin-top:16px;line-height:1.7;max-width:870px}.member-layout{min-height:calc(100vh - 83px);display:grid;grid-template-columns:1fr 1fr}.member-panel{padding:80px max(35px,calc((100vw - 1180px)/2));padding-right:65px;display:flex;flex-direction:column;justify-content:center}.member-panel h1{font-size:42px}.member-panel .intro{margin-top:24px;color:var(--muted);line-height:1.8}.member-panel .button{margin-top:26px;align-self:start}.member-panel .note{font-size:12px;color:var(--muted);margin-top:18px}.member-aside{background:#edf5f0;padding:70px;display:flex;flex-direction:column;justify-content:center}.member-aside h2{font-size:29px;margin:35px 0 15px}.member-aside p{color:var(--muted);font-size:15px;max-width:440px}.member-aside .premium-visual{max-width:360px}.member-features{margin-top:30px;font-size:14px;line-height:2.1}.member-back{font-size:13px;margin-top:28px;align-self:start}@media(min-width:1440px){.container{--max:1280px}.hero{padding-top:78px}.tool{min-height:245px}}@media(max-width:1000px){.nav{gap:18px}.nav .member-link{display:none}.header-inner{gap:18px}.container{width:calc(100% - 48px)}.explain{gap:35px}.premium-banner{padding:38px;gap:20px}.premium-banner h2{font-size:32px}.faq-layout{gap:40px}.footer-grid{gap:25px}.member-panel{padding:50px 35px}.member-aside{padding:40px}}@media(max-width:760px){html{scroll-padding-top:84px}.container{width:calc(100% - 36px)}.header-inner{min-height:72px;gap:12px}.brand{font-size:21px}.brand-mark{width:32px;height:32px}.nav{display:none}.header-cta{padding:10px 12px;font-size:12px;margin-left:auto}.mobile-menu{display:block;position:relative}.mobile-menu summary{cursor:pointer;list-style:none;width:33px;height:36px;display:grid;place-items:center;font-size:22px}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu nav{position:absolute;right:0;top:45px;width:230px;background:white;border:1px solid var(--line);box-shadow:0 12px 30px #00000012;border-radius:12px;padding:14px;display:grid;gap:4px}.mobile-menu a{padding:10px;text-decoration:none;font-size:14px}.hero{padding:44px 0 35px}.hero .lead{font-size:16px;margin-top:20px}.hero h1 span{display:inline}.eyebrow{font-size:10px;letter-spacing:.12em}.trust-line{gap:10px 18px;font-size:11px}.actions{gap:10px}.button{padding:12px 16px;font-size:13px}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.tool{padding:20px;min-height:250px}.tool h3{font-size:18px}.tool p{font-size:13px}.section-top h2{font-size:23px}.filters{gap:7px}.filter{font-size:12px;padding:7px 13px}.section{padding:50px 0}.explain{grid-template-columns:1fr;gap:32px}.example-shell{padding:22px}.principles{grid-template-columns:1fr;gap:24px}.premium-section{padding-top:46px}.premium-banner{grid-template-columns:1fr;padding:30px 24px;gap:22px}.premium-banner h2{font-size:30px}.premium-visual{min-height:285px;max-width:350px;width:100%;margin:auto}.plans-section{padding:48px 0}.plans{grid-template-columns:1fr}.plan{padding:26px}.faq-section{padding:46px 0}.faq-layout{grid-template-columns:1fr;gap:30px}.footer-grid{grid-template-columns:1fr 1fr;gap:36px 24px}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:10px}.member-layout{grid-template-columns:1fr}.member-panel{padding:45px 25px}.member-panel h1{font-size:35px}.member-aside{padding:45px 25px}}@media(max-width:430px){.tool-grid{grid-template-columns:1fr}.tool{min-height:0;padding:22px;display:grid;grid-template-columns:44px 1fr;gap:0 16px}.tool-icon{width:44px;height:44px;grid-row:1/3;margin:0}.tool h3{margin:0 0 8px}.tool p{max-width:none}.tool-go{grid-column:2;padding-top:12px}.section-top{align-items:start}.tool-count{min-width:75px}.hero .actions{flex-direction:column;align-items:stretch}.hero h1{font-size:34px}.brand{font-size:19px}.header-cta{font-size:11px;padding:10px}.example-card{padding:20px}.formula-visual strong{font-size:21px}.fine-result strong{font-size:28px}.premium-banner{padding:28px 20px}.future-card{width:245px}.floating-label{right:-3px}.footer-grid{gap:28px 20px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;transform:none!important}}

[hidden]{display:none!important}

/* Trois niveaux comparables, sans tarif ni abonnement fictifs. */
.plans.plans-three{max-width:none;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;align-items:stretch}
.plans-three .plan{display:flex;flex-direction:column;padding:30px;min-width:0}
.plans-three .plan-label{gap:12px;min-height:30px;text-transform:uppercase}
.plans-three h3{font-size:32px;margin-top:20px}
.plans-three .plan-price{font-size:30px;font-weight:700;color:var(--ink);line-height:1.25;margin:18px 0 6px}
.plans-three .price-note{min-height:42px;margin:0}
.plans-three ul{flex:1;margin:24px 0 30px}
.plans-three li{margin-bottom:16px}
.plans-three .button{width:100%;text-align:center;justify-content:center;margin-top:auto}
.plans-three .plan-pro{border:2px solid #536c62;background:#f1f5f2}
.plans-disclaimer{font-size:12px;line-height:1.7;color:var(--muted);margin:22px 0 0;max-width:none}
html[data-theme=dark] .plans-three .plan-pro{background:#263c33;border-color:#9ab6a7}
@media(max-width:1050px){.plans.plans-three{grid-template-columns:1fr;max-width:700px;margin-left:auto;margin-right:auto}.plans-three .price-note{min-height:0}}

/* Des champs larges pour essayer le calcul au clavier comme sur mobile. */
.demo-inputs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:24px 0}
.demo-inputs label{display:flex;flex-direction:column;gap:8px;font-size:.8rem;min-width:0}
.demo-inputs input{width:100%;min-width:0;box-sizing:border-box;border:1px solid #9ba4ac;border-radius:8px;padding:12px;font:inherit;font-size:1.1rem;background:var(--bg,#fff);color:inherit}
.demo-inputs input:focus-visible{outline:3px solid #b4842b;outline-offset:2px}
.demo-inputs input[aria-invalid=true]{border-color:#c34343}
.demo-help{font-size:.8rem;line-height:1.6}.demo-row{display:flex;justify-content:space-between;gap:16px;padding:10px 0;font-size:.85rem}.demo-row strong{text-align:right}.demo-error{color:#b93737;line-height:1.6}
#essai .button{margin-top:18px}#essai .example-head{flex-wrap:wrap}#essai .fine-result{gap:14px}
@media(max-width:650px){.demo-inputs{grid-template-columns:repeat(2,minmax(0,1fr))}.demo-row{flex-wrap:wrap}.example-shell{padding:16px}.example-card{padding:20px}}

/* Le contraste des chiffres reste explicite, quel que soit le thème du navigateur. */
html #essai .demo-inputs input{
 background:#202522!important;
 color:#eaf3ee!important;
 -webkit-text-fill-color:#eaf3ee!important;
 caret-color:#eaf3ee;
 color-scheme:dark;
}
html #essai .demo-inputs input:autofill{
 box-shadow:0 0 0 1000px #202522 inset!important;
 -webkit-text-fill-color:#eaf3ee!important;
}