:root {
 --th-cold: #123759; --th-hot: #9b2835; --th-white: #ffffff; --th-ice: #edf4fa; --th-grey: #425971; --th-edge: #697d91;
 --th-start: #163c66; --th-end: #8f2430;
 --th-display: "Big Shoulders Display", Impact, sans-serif; --th-copy: "Figtree", Arial, sans-serif;
 --th-small: .9rem; --th-text: 1.125rem; --th-title: clamp(3.25rem,7vw,7rem); --th-section: clamp(2.3rem,4.6vw,4.3rem);
 --th-unit: 10px; --th-corner: 0; --th-elevation: none;
 --th-space-1: 10px; --th-space-2: 20px; --th-space-3: 30px; --th-space-4: 40px;
 --th-space-6: 60px; --th-space-7: 70px; --th-heading-3: 1.8rem;
 --th-leading: 1.6; --th-leading-display: 1.02;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--th-white); color: var(--th-cold); font: var(--th-text)/1.6 var(--th-copy); }
img,svg { max-width: 100%; height: auto; }
a { color: var(--th-hot); text-underline-offset: .25em; }
:focus-visible { outline: 3px solid var(--th-hot); outline-offset: 5px; }
h1,h2,h3 { font-family: var(--th-display); font-weight: 700; line-height: 1.02; margin: 0 0 1.5rem; }
h1 { font-size: var(--th-title); letter-spacing: -.02em; }
h2 { font-size: var(--th-section); }
h3 { font-size: 1.8rem; }
p { margin: 0 0 1.3rem; }
.c-thermal-width { width: min(1200px, calc(100% - 80px)); margin-inline: auto; }
.c-thermal-split { display: grid; grid-template-columns: 1.35fr 1fr; gap: 60px; align-items: start; }
.c-thermal-stack > * + * { margin-top: 30px; }
.u-heat-measure { max-width: 760px; }
.u-heat-caption { font-size: var(--th-small); }
.u-heat-caps { font-size: .875rem; letter-spacing: .1em; text-transform: uppercase; }
.thermal-skip { position: absolute; top: -100px; left: 20px; background: white; color: var(--th-cold); padding: 14px; z-index: 10; }
.thermal-skip:focus { top: 20px; }
.thermal-mast { border-top: 8px solid var(--th-hot); background: white; }
.thermal-mast__inner { display: flex; justify-content: space-between; gap: 30px; padding-block: 20px; align-items: center; }
.thermal-mast img { display: block; width: 280px; }
.thermal-nav { display: flex; flex-wrap: wrap; gap: 10px 25px; }
.thermal-nav a { color: var(--th-cold); padding: 10px 0; font-size: 1rem; }
.thermal-nav a[aria-current] { text-decoration-thickness: 3px; color: var(--th-hot); }
.thermal-path { padding-block: 20px; font-size: .875rem; }
.thermal-scene { padding: 70px 0; background: linear-gradient(115deg,var(--th-start) 15%,var(--th-start) 48%,var(--th-end) 100%); color: white; }
.thermal-scene a:not(.thermal-button) { color: white; }
.thermal-scene :focus-visible { outline-color: white; }
.thermal-scene p { max-width: 650px; }
.thermal-scene[data-heat="reverse"] { background: linear-gradient(130deg,var(--th-end) 0%,var(--th-start) 70%); }
.thermal-button { display: inline-block; padding: 14px 24px; min-height: 50px; background: white; color: var(--th-cold); border: 1px solid var(--th-cold); font-weight: 700; font-size: 1rem; text-decoration: none; }
.thermal-button[data-heat="solid"] { background: var(--th-hot); color: white; border-color: var(--th-hot); }
.thermal-button:hover { text-decoration: underline; }
.thermal-chapter { padding-block: var(--th-space-7); }
.thermal-chapter[data-heat="cool"] { background: var(--th-ice); }
.thermal-kicker { border-top: 2px solid currentColor; padding-top: 12px; width: fit-content; margin-bottom: 30px; }
.thermal-notice { border-left: 6px solid var(--th-hot); padding: 20px 30px; background: var(--th-ice); margin-block: 30px; }
.thermal-ledger { margin: 0; }
.thermal-ledger > div { padding: 22px 0; border-bottom: 1px solid var(--th-edge); }
.thermal-ledger dt { font: 700 1.9rem var(--th-display); margin-bottom: 10px; }
.thermal-ledger dd { margin: 0; }
.thermal-stages { list-style: decimal-leading-zero; padding-left: 35px; }
.thermal-stages li { padding: 0 0 20px 10px; }
.thermal-answers details { border-top: 1px solid var(--th-edge); padding: 20px 0; }
.thermal-answers summary { cursor: pointer; min-height: 44px; font-weight: 600; }
.thermal-answers p { padding-top: 10px; }
.thermal-brief { max-width: 760px; }
.thermal-brief section { border-top: 2px solid var(--th-cold); padding-top: 25px; margin-bottom: 40px; }
.thermal-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }
.thermal-field label { display: block; font-weight: 600; font-size: 1rem; padding-bottom: 6px; }
.thermal-field select,.thermal-field input { width: 100%; min-width: 0; padding: 12px; min-height: 50px; border: 1px solid var(--th-edge); background: white; color: var(--th-cold); font: 1rem var(--th-copy); border-radius: var(--th-corner); }
.thermal-agreement { display: flex; align-items: flex-start; gap: 15px; margin: 30px 0; font-size: 1rem; }
.thermal-agreement input { width: 22px; height: 22px; flex: 0 0 22px; margin-top: 3px; accent-color: var(--th-hot); }
.thermal-submit { min-height: 50px; padding: 15px 25px; background: var(--th-hot); color: white; border: 0; cursor: pointer; font: 700 1rem var(--th-copy); }
.thermal-confirmation { border-top: 4px solid var(--th-hot); background: var(--th-ice); padding: 20px; margin-top: 30px; }
[hidden] { display: none !important; }
.thermal-foot { background: var(--th-cold); color: white; padding-block: 40px; }
.thermal-foot :focus-visible { outline-color: white; }
.thermal-foot a { color: white; }
.thermal-foot nav { display: flex; gap: 25px; flex-wrap: wrap; margin-bottom: 25px; }
.thermal-foot nav a { padding: 10px 0; }
.thermal-foot small { display: block; }
@media (max-width: 1050px) {
 .thermal-mast__inner { flex-direction: column; align-items: flex-start; gap: 5px; }
 .c-thermal-split { gap: 35px; grid-template-columns: 1fr 1fr; }
}
@media (max-width: 710px) {
 .c-thermal-width { width: calc(100% - 40px); }
 .c-thermal-split,.thermal-form-grid { grid-template-columns: 1fr; gap: 25px; }
 .thermal-scene,.thermal-chapter { padding-block: 40px; }
 .thermal-notice { padding: 20px; }
 .thermal-nav { gap: 5px 20px; }
}



:root { --th-title: clamp(3.75rem,7.8vw,7rem); --th-section: clamp(2.4rem,5.3vw,4.75rem); }
body { line-height: 1.65; }
h1 { line-height: .96; max-width: 13ch; text-wrap: balance; font-weight: 800; }
h2 { text-wrap: balance; }
.c-thermal-width { width: min(1280px,calc(100% - 96px)); }
.thermal-mast { border-top-width: 5px; }
.thermal-scene { padding-block: 6rem; background: linear-gradient(120deg,var(--th-start) 48%,var(--th-end)); }
.thermal-scene > .c-thermal-split { grid-template-columns: minmax(0,1.1fr) minmax(0,1fr); gap: 4rem; align-items: center; }
.thermal-scene > .c-thermal-width > h1 { max-width: 24ch; margin-bottom: 3rem; }
.thermal-scene__base { grid-template-columns: minmax(0,.85fr) minmax(0,1.2fr); gap: 4rem; align-items: center; }
.thermal-scene p:not(.u-heat-caps) { font-size: 1.25rem; }
.thermal-kicker { border-top-width: 1px; }
.thermal-photo { margin: 2.5rem 0; background: var(--th-ice); }
.thermal-photo img { display: block; width: 100%; height: auto; aspect-ratio: 4/3; object-fit: cover; background: var(--th-ice); }
.thermal-photo[data-format="16:9"] img { aspect-ratio: 16/9; }
.thermal-photo figcaption { padding: 1rem 1.25rem; color: var(--th-cold); background: var(--th-ice); font-size: .875rem; line-height: 1.5; border-top: 3px solid var(--th-hot); }
.thermal-scene .thermal-photo { margin-block: 0; }
.thermal-scene > .c-thermal-width + .c-thermal-width { margin-top: 4rem; }
.thermal-chapter { padding-block: 7rem; }
.c-thermal-editorial { display: grid; grid-template-columns: minmax(0,1.4fr) minmax(0,1fr); gap: 5rem; align-items: center; }
.c-thermal-editorial .thermal-photo { margin: 0; }
.thermal-chapter--circuit { padding-top: 2rem; padding-bottom: 5rem; }
.thermal-chapter--circuit h2 { max-width: 10ch; }
.thermal-schema { background: var(--th-ice); padding: 2rem; margin: 2rem 0; border-top: 4px solid var(--th-hot); }
.thermal-schema::before { content: ''; display: block; width: 100%; aspect-ratio: 16/5; }
.thermal-schema:has(svg)::before { display: none; }
.thermal-schema svg { display: block; width: 100%; height: auto; }
.thermal-schema figcaption { border-top: 1px solid var(--th-edge); padding-top: 1rem; font-size: .9375rem; color: var(--th-grey); }
.thermal-ledger dt { font-size: 2.4rem; }
.thermal-ledger > div { padding: 1.75rem 0; }
.thermal-notice { margin-block: 2.5rem; padding: 2rem; }
.thermal-button { padding: 1rem 1.75rem; }
.thermal-button:hover { background: var(--th-ice); color: var(--th-cold); }
.thermal-button[data-heat="solid"]:hover, .thermal-submit:hover { background: var(--th-cold); color: white; }
.thermal-brief section { padding: 2rem 0 1rem; margin-bottom: 3rem; }
.thermal-brief section:focus-within { border-top-color: var(--th-hot); }
.thermal-field:focus-within label { color: var(--th-hot); }
.thermal-form-grid { gap: 1.5rem 2rem; }
.thermal-confirmation { padding: 2rem; }
.thermal-answers details[open] { padding-inline: 1.25rem; background: white; }
.thermal-foot { padding-block: 5rem 2rem; }
.c-thermal-footer { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,.75fr) minmax(0,1.5fr); gap: 3rem; }
.thermal-foot__brand { font: 700 2.5rem/1 var(--th-display); }
.thermal-foot p { font-size: 1rem; }
.thermal-foot__plan { flex-direction: column; gap: .25rem !important; align-items: start; }
.thermal-foot__request { border-left: 1px solid var(--th-edge); padding-left: 2rem; }
.thermal-foot__request h2 { font-size: 2.75rem; }
.thermal-foot__request .thermal-button { color: var(--th-cold); }
.thermal-foot__role { grid-column: 1 / 3; border-top: 1px solid var(--th-edge); padding-top: 2rem; }
.thermal-foot__legal { border-top: 1px solid var(--th-edge); padding-top: 1.25rem; font-size: .875rem; }
@media (max-width: 1050px) {
 .c-thermal-width { width: calc(100% - 64px); }
 .thermal-scene > .c-thermal-split { gap: 2rem; }
 .thermal-scene__base { gap: 2rem; }
 .c-thermal-editorial { gap: 2.5rem; grid-template-columns: 1fr 1fr; }
 .c-thermal-footer { grid-template-columns: 1fr 1fr; }
 .thermal-foot__request { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--th-edge); padding: 2.5rem 0 0; }
 .thermal-foot__role { grid-column: 1 / -1; }
}
@media (max-width: 710px) {
 .c-thermal-width { width: calc(100% - 40px); }
 .thermal-scene { padding-block: 3rem; }
 .thermal-scene > .c-thermal-split, .thermal-scene__base, .c-thermal-editorial, .c-thermal-footer { grid-template-columns: minmax(0,1fr); }
 .thermal-chapter { padding-block: 3.5rem; }
 .thermal-chapter--circuit { padding-top: 0; }
 .thermal-scene p:not(.u-heat-caps) { font-size: 1.125rem; }
 .thermal-schema { padding: 1.25rem; }
 .thermal-schema::before { aspect-ratio: 4/3; }
 .thermal-foot { padding-block: 3rem 1rem; }
}

@keyframes chaleur-arrivee { from { opacity: .92; transform: translateY(6px); } to { opacity: 1; transform: none; } }
html { scroll-behavior: smooth; }
main { animation: chaleur-arrivee .5s ease-out both; }
figure { min-width: 0; }
input, select, textarea, button { max-width: 100%; }
summary:hover { text-decoration: underline; text-underline-offset: .22em; }
summary::marker { font-size: .8em; }
button, a, input, select { transition: background-color .18s ease, border-color .18s ease, color .18s ease; }
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *, *::before, *::after { animation: none !important; transition: none !important; }
}


.thermal-bot{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}
.thermal-slide{overflow-x:auto;max-width:100%}.thermal-slide>svg{display:block;width:100%;height:auto}.thermal-schema:has(svg)::before{display:none}.thermal-glide{display:none}.thermal-field textarea{width:100%;padding:1rem;font:inherit;border:1px solid #697D91}.thermal-error{color:#9B2835;font-size:.9rem}.thermal-archive{border-bottom:1px solid #697D91;padding-block:2rem}@media(max-width:699px){.thermal-slide>svg{min-width:640px}.thermal-glide{display:block;font-size:.85rem}.thermal-mast img{max-width:100%;height:auto}}
[hidden]{display:none!important}

.u-heat-measure p{overflow-wrap:anywhere}