:root{--navy:#123173;--navy-deep:#0d2456;--navy-700:#1c3f86;--orange:#fa7620;--orange-deep:#e05f10;--orange-soft:#ff9e5c;--blue:#2f7fc4;--blue-soft:#6aa6dd;--paper:#fafafa;--paper-deep:#eef1f7;--cream:#fff;--night:#0e1b3a;--night-2:#16264f;--ink:#13203b;--ink-2:#45506a;--ink-3:#8590a8;--on-night:#eef2fb;--on-night-2:#9fb0d0;--copper:var(--navy);--copper-deep:var(--navy-deep);--copper-soft:var(--blue-soft);--ember:var(--orange);--ember-soft:var(--orange-soft);--brass:var(--orange);--olive:var(--blue);--line:color-mix(in srgb,var(--ink) 12%,transparent);--line-strong:color-mix(in srgb,var(--ink) 24%,transparent);--line-night:color-mix(in srgb,var(--on-night) 16%,transparent);--font-display:"Fraunces",Georgia,"Times New Roman",serif;--font-body:"Hanken Grotesk",system-ui,-apple-system,sans-serif;--font-mono:"Spline Sans Mono",ui-monospace,"SFMono-Regular",monospace;--r:14px;--r-lg:24px;--r-xl:34px;--shadow-sm:0 2px 10px -6px rgba(18,36,80,.45);--shadow:0 22px 48px -30px rgba(18,36,80,.6);--shadow-lg:0 40px 80px -42px rgba(13,28,66,.72);--container:1200px;--gutter:clamp(1.25rem,4vw,3.5rem)}*,:after,:before{box-sizing:border-box;margin:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{font-family:var(--font-body);background-color:var(--paper);background-image:radial-gradient(120% 80% at 88% -10%,color-mix(in srgb,var(--orange) 13%,transparent) 0,transparent 55%),radial-gradient(90% 60% at 0 0,color-mix(in srgb,var(--blue) 13%,transparent) 0,transparent 50%);background-attachment:fixed;color:var(--ink);font-size:clamp(1rem,.94rem + .3vw,1.125rem);line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}body:after{content:"";position:fixed;inset:0;z-index:2000;pointer-events:none;opacity:.025;mix-blend-mode:multiply;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 220 220'%3E%3Cfilter id='a'%3E%3CfeTurbulence baseFrequency='.86' numOctaves='2' stitchTiles='stitch' type='fractalNoise'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23a)'/%3E%3C/svg%3E");background-size:200px 200px}img,svg{display:block;max-width:100%}a{color:inherit;text-decoration:none}button{cursor:pointer;background:none;border:none}button,input,select,textarea{font:inherit;color:inherit}::-moz-selection{background:var(--ember);color:var(--cream)}::selection{background:var(--ember);color:var(--cream)}h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.02;letter-spacing:-.015em;font-optical-sizing:auto;color:var(--ink);text-wrap:balance}.display{font-size:clamp(2.7rem,1.2rem + 6.6vw,6.5rem);font-weight:600;line-height:.96;letter-spacing:-.028em}.display em{font-style:italic;font-weight:500;color:var(--copper-deep)}h2.section-title{font-size:clamp(2rem,1.2rem + 3vw,3.6rem);letter-spacing:-.022em}p{text-wrap:pretty}.eyebrow{display:inline-flex;align-items:center;gap:.6em;font-family:var(--font-mono);font-size:.72rem;font-weight:500;letter-spacing:.22em;text-transform:uppercase;color:var(--copper-deep)}.eyebrow:before{content:"";width:1.8rem;height:1px;background:currentColor;opacity:.6}.eyebrow--center:before{display:none}.on-night .eyebrow{color:var(--ember-soft)}.lead{font-size:clamp(1.1rem,1rem + .5vw,1.4rem);color:var(--ink-2);line-height:1.55;max-width:56ch}.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}.section{padding-block:clamp(4.5rem,3rem + 7vw,9rem)}.section--tight{padding-block:clamp(3rem,2rem + 4vw,5rem)}.section-head{max-width:60ch;margin-bottom:clamp(2.2rem,3vw,3.5rem)}.section-head .eyebrow{margin-bottom:1.1rem}.section-head.center{margin-inline:auto;text-align:center}.section-head.center .eyebrow{justify-content:center}.btn{--bg:var(--ink);--fg:var(--paper);display:inline-flex;align-items:center;gap:.65em;padding:.95em 1.6em;border-radius:999px;font-family:var(--font-body);font-weight:600;font-size:.98rem;letter-spacing:-.01em;background:var(--bg);color:var(--fg);border:1px solid transparent;transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s,background .35s,color .35s;will-change:transform}.btn svg{width:1.1em;height:1.1em;transition:transform .35s}.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.btn:active{transform:translateY(0)}.btn:hover .btn-arrow{transform:translate(3px)}.btn--copper{--bg:var(--orange);--fg:#fff}.btn--copper:hover{--bg:var(--orange-deep)}.btn--ember{--bg:var(--ember);--fg:#fff}.btn--ember:hover{--bg:#b03b22}.btn--ghost{--bg:transparent;--fg:var(--ink);border-color:var(--line-strong)}.btn--ghost:hover{--bg:var(--ink);--fg:var(--paper);border-color:var(--ink)}.on-night .btn--ghost{--fg:var(--on-night);border-color:var(--line-night)}.on-night .btn--ghost:hover{--bg:var(--on-night);--fg:var(--night)}.arrow-link{display:inline-flex;align-items:center;gap:.5em;font-weight:600;color:var(--copper-deep);border-bottom:1px solid transparent;transition:gap .3s,border-color .3s;width:-moz-fit-content;width:fit-content}.arrow-link svg{width:1em;height:1em;transition:transform .3s}.arrow-link:hover{gap:.8em;border-color:currentColor}.card{background:var(--cream);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm)}.ticks{list-style:none;padding:0;display:grid;gap:.7rem}.ticks li{position:relative;padding-left:1.9rem;color:var(--ink-2)}.ticks li:before{content:"";position:absolute;left:0;top:.35em;width:1.1rem;height:1.1rem;border-radius:50%;background:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' viewBox='0 0 24 24'%3E%3Cpath d='m5 12.5 5 5L19.5 7'/%3E%3C/svg%3E") 50% /.7rem no-repeat,var(--copper)}[data-trade=chauffage]{--tcA:var(--orange);--tcB:var(--orange-deep)}[data-trade=climatisation]{--tcA:var(--blue);--tcB:#1f5fa0}[data-trade=sav]{--tcA:var(--navy-700);--tcB:var(--navy-deep)}.rule{height:1px;background:repeating-linear-gradient(90deg,var(--line-strong) 0 8px,transparent 8px 16px);border:0}.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1);transition-delay:var(--reveal-delay,0s)}.reveal.is-revealed{opacity:1;transform:none}@keyframes rise{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:none}}[data-rise]{opacity:0;animation:rise .9s cubic-bezier(.2,.7,.2,1) forwards;animation-delay:var(--rise-delay,0s)}@media(prefers-reduced-motion:reduce){.reveal,[data-rise]{opacity:1!important;transform:none!important;animation:none!important}}:focus-visible{outline:2px solid var(--ember);outline-offset:3px;border-radius:4px}.legal{max-width:70ch}.legal h2{font-size:clamp(1.4rem,1rem + 1.4vw,1.9rem);margin:2.3rem 0 .7rem}.legal h2:first-child{margin-top:0}.legal p,.legal ul{color:var(--ink-2);margin-bottom:1rem}.legal ul{padding-left:1.1rem;display:grid;gap:.45rem}.legal a{color:var(--copper-deep);border-bottom:1px solid color-mix(in srgb,var(--copper) 40%,transparent)}.legal a:hover{border-color:currentColor}.legal strong{color:var(--ink)}.legal .todo{color:var(--ember);font-family:var(--font-mono);font-size:.8em}.measure{max-width:62ch}.center{text-align:center}.mono{font-family:var(--font-mono)}.skip-link{position:absolute;left:1rem;top:-4rem;z-index:4000;background:var(--ink);color:var(--paper);padding:.6rem 1rem;border-radius:8px;transition:top .25s}.skip-link:focus{top:1rem}