:root {
  --noir: #000;
  --blanc: #f5f3ef;
  --gris: #a5a29c;
  --trait: #2c2b2a;
  --corail: #ff5a36;
  --magenta: #ff2e88;
  --bleu: #4a63ff;
}
* { box-sizing: border-box; }
html { background: var(--noir); }
body {
  margin: 0;
  background: var(--noir);
  color: var(--blanc);
  font: 400 1.0625rem/1.6 Manrope, system-ui, sans-serif;
  overflow-x: hidden;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3 { margin: 0; font-family: Anton, Impact, sans-serif; font-weight: 400; }
h2 { font-size: clamp(3.5rem, 12vw, 11rem); line-height: .95; }
:focus-visible { outline: 2px solid var(--blanc); outline-offset: 3px; }
.gouttiere { padding-inline: clamp(16px, 3vw, 48px); }

.entete {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: 1.1rem 1.75rem;
  background: linear-gradient(rgba(0, 0, 0, .8), transparent);
}
.marque { font: 400 1.5rem/1 Anton, Impact, sans-serif; text-decoration: none; }
.entete small { margin-left: .75rem; font: 500 .9375rem/1 Manrope, system-ui, sans-serif; }
.entete nav { display: flex; align-items: center; gap: 1.5rem; font-weight: 500; font-size: .9375rem; }
.entete nav a { text-decoration: none; }
.entete nav a:hover { text-decoration: underline; text-underline-offset: 4px; }

.bouton {
  display: inline-block;
  padding: 1rem 1.6rem;
  border: 0;
  border-radius: 99px;
  background: var(--blanc);
  color: var(--noir);
  font: 700 1rem/1.2 Manrope, system-ui, sans-serif;
  text-decoration: none;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.bouton:hover { background: var(--corail); color: var(--noir); }

/* L'accueil : un site qui se construit, exemple après exemple */
@property --teinte { syntax: '<color>'; inherits: true; initial-value: #a23cff; }
.hero {
  --teinte: #a23cff;
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 7fr);
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
  min-height: 100vh;
  min-height: 100svh;
  padding-block: 5.5rem 2rem;
  background: radial-gradient(circle at 74% 48%, color-mix(in srgb, var(--teinte) 34%, transparent), transparent 52%);
  transition: --teinte 1s;
}
.hero h1 { font-size: 9.4vw; line-height: .98; text-transform: uppercase; }
.hero h1 span { display: block; }
.hero-texte p { max-width: 30ch; margin: 1.5rem 0; font-size: clamp(1.15rem, 1.8vw, 1.5rem); line-height: 1.35; }
.hero-demo { min-width: 0; }
.vitrine { position: relative; display: block; margin: 0 0 clamp(1.5rem, 3vw, 2.5rem) 7%; color: var(--blanc); text-decoration: none; }
.navigateur { overflow: hidden; border: 1px solid #383838; border-radius: 10px; background: #161616; box-shadow: 0 30px 90px rgba(0, 0, 0, .6); }
.barre-url { display: flex; align-items: center; gap: .4rem; padding: .55rem .75rem; font-size: .875rem; }
.barre-url i { width: .6rem; height: .6rem; border-radius: 50%; background: #555; }
.barre-url span { flex: 1; min-width: 0; margin-inline: .5rem; padding: .15rem .75rem; overflow: hidden; border-radius: 99px; background: #2a2a2a; white-space: nowrap; }
.barre-url b { color: #5fe39b; font-weight: 700; white-space: nowrap; }
.barre-url b.encours { color: var(--gris); }
.ecran { position: relative; aspect-ratio: 8 / 5; overflow: hidden; background: #101010; }
.ecran img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ecran img.arrive { animation: volet .8s cubic-bezier(.7, 0, .2, 1) both; }
@keyframes volet { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0); } }
.plan { position: absolute; z-index: 2; inset: 0; display: grid; grid-template: 1fr 4fr 2fr / 2fr 1fr; gap: 3%; padding: 5%; background: #101010; opacity: 0; pointer-events: none; }
.plan i { border: 1px dashed #666; border-radius: 4px; background: #1d1d1d; }
.plan i:first-child { grid-column: 1 / -1; }
.plan.visible { opacity: 1; }
.telephone { position: absolute; left: -7%; bottom: -5%; width: 21%; aspect-ratio: 1 / 2; overflow: hidden; border: 5px solid #262626; border-radius: 20px; background: #101010; box-shadow: 0 16px 50px rgba(0, 0, 0, .7); }
.telephone img { width: 100%; height: 100%; object-fit: cover; }
.ouvrir { position: absolute; right: .9rem; bottom: .9rem; padding: .45rem .9rem; border-radius: 99px; background: var(--blanc); color: var(--noir); font-size: .875rem; font-weight: 700; }
.onglets { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .25rem .9rem; }
.onglets button { padding: .25rem 0; border: 0; border-bottom: 2px solid transparent; background: none; color: var(--gris); font: 500 .9375rem/1.3 Manrope, system-ui, sans-serif; cursor: pointer; }
.onglets button:hover { color: var(--blanc); }
.onglets button[aria-pressed="true"] { border-color: var(--blanc); color: var(--blanc); }

section { padding-block: clamp(5rem, 11vw, 10rem); }

.bandeau { overflow: hidden; padding-block: 1.1rem; background: var(--corail); color: var(--noir); }
.bandeau div { display: flex; width: max-content; animation: bandeau 34s linear infinite; }
.bandeau span { padding-right: 2.5rem; font: 400 1.75rem/1.1 Anton, Impact, sans-serif; white-space: nowrap; }
@keyframes bandeau { to { transform: translateX(-50%); } }

.raisons { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem, 4vw, 3rem); }
.raisons h3 { font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.05; margin-bottom: .75rem; }
.raisons p { margin: 0; color: var(--gris); max-width: 34ch; }

.collant {
  display: none;
  position: fixed;
  z-index: 18;
  inset: auto 16px 16px;
  text-align: center;
}

.concepts h2 { margin-bottom: clamp(2rem, 5vw, 4rem); }
.concepts ul { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--trait); }
.concepts li { border-bottom: 1px solid var(--trait); }
.concepts li a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-block: .9rem;
  text-decoration: none;
}
.concepts .nom {
  font: 400 clamp(2.75rem, 9vw, 8rem)/1.05 Anton, Impact, sans-serif;
  transition: color .2s, transform .25s;
}
.concepts .metier { color: var(--gris); text-align: right; }
.concepts img { display: none; }
.concepts li a:hover .nom { color: var(--corail); transform: translateX(1rem); }
.concepts .precision { margin: 1.25rem 0 0; color: var(--gris); }
.vignette {
  position: fixed;
  z-index: 15;
  left: 0;
  top: 0;
  width: min(36vw, 480px);
  aspect-ratio: 8 / 5;
  object-fit: cover;
  border-radius: 8px;
  pointer-events: none;
  opacity: 0;
  transition: opacity .2s;
}
.vignette.vue { opacity: 1; }

.methode ol { list-style: none; counter-reset: etape; margin: clamp(2rem, 5vw, 4rem) 0 0; padding: 0; }
.methode li {
  counter-increment: etape;
  display: grid;
  grid-template-columns: minmax(3rem, 1fr) 5fr 5fr;
  gap: 1.5rem;
  align-items: baseline;
  padding-block: 1.75rem;
  border-top: 1px solid var(--trait);
}
.methode li::before { content: counter(etape); color: var(--corail); font: 400 2rem/1 Anton, Impact, sans-serif; }
.methode h3 { font-size: clamp(1.75rem, 3.6vw, 3rem); line-height: 1.1; }
.methode p { margin: 0; color: var(--gris); max-width: 46ch; }

.tarif { background: linear-gradient(120deg, var(--corail), var(--magenta) 55%, var(--bleu)); color: var(--noir); }
.tarif h2 { margin-bottom: clamp(2rem, 5vw, 4rem); }
.formules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; align-items: stretch; }
.formule { display: flex; flex-direction: column; padding: clamp(1.25rem, 2.5vw, 2rem); border: 1px solid var(--noir); border-radius: 8px; font-weight: 500; }
.formule.forte { background: var(--noir); color: var(--blanc); }
.formule h3 { font-size: 1.75rem; }
.formule .pour { margin: .25rem 0 1.5rem; min-height: 3.2em; }
.formule .prix { margin: 0; font: 400 clamp(3rem, 6.2vw, 5.5rem)/1 Anton, Impact, sans-serif; white-space: nowrap; }
.formule .detail { margin: .35rem 0 1.5rem; }
.formule ul { margin: 0 0 2rem; padding: 0; list-style: none; flex: 1; }
.formule li { padding-block: .2rem; }
.formule .bouton { align-self: flex-start; }
.tarif .bouton { background: var(--noir); color: var(--blanc); }
.tarif .bouton:hover { background: var(--blanc); color: var(--noir); }
.tarif .forte .bouton { background: var(--blanc); color: var(--noir); }
.tarif .forte .bouton:hover { background: var(--corail); }
.options { display: grid; grid-template-columns: 1fr 2fr; gap: 1rem 2rem; margin-top: clamp(2.5rem, 5vw, 4rem); font-weight: 500; }
.options h3 { font-size: 1.75rem; }
.options ul { margin: 0; padding: 0; list-style: none; }
.options li { display: flex; justify-content: space-between; gap: 1rem; padding-block: .5rem; border-bottom: 1px solid rgba(0, 0, 0, .35); }
.options p { grid-column: 2; margin: 0; }

.exigence { background: var(--blanc); color: var(--noir); }
.exigence div { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem, 4vw, 3rem); margin-top: clamp(2rem, 5vw, 4rem); }
.exigence h3 { font-size: clamp(1.75rem, 3vw, 2.5rem); line-height: 1.1; margin-bottom: .75rem; }
.exigence p { margin: 0; max-width: 34ch; }

.questions h2 { margin-bottom: clamp(2rem, 5vw, 4rem); }
.questions details { border-top: 1px solid var(--trait); max-width: 880px; }
.questions summary { padding-block: 1.1rem; font-size: 1.25rem; font-weight: 700; cursor: pointer; }
.questions details p { margin: 0 0 1.5rem; color: var(--gris); max-width: 65ch; }

.demande { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 6rem); align-items: end; }
.demande p { color: var(--gris); max-width: 38ch; }
.demande .livraison { color: var(--blanc); font-size: 1.25rem; font-weight: 700; line-height: 1.35; }
form { display: grid; gap: 1.25rem; }
label { display: grid; gap: .2rem; font-weight: 700; }
label small { color: var(--gris); font-weight: 400; }
input {
  width: 100%;
  padding: .7rem 0;
  border: 0;
  border-bottom: 1px solid var(--gris);
  border-radius: 0;
  background: none;
  color: var(--blanc);
  font: 400 1.25rem/1.3 Manrope, system-ui, sans-serif;
}
input:focus { outline: none; border-color: var(--corail); }
.demande .erreur { margin: 0; color: var(--corail); font-weight: 700; }
.erreur:empty { display: none; }
form .bouton { justify-self: start; }

footer { overflow: hidden; padding-top: 2rem; }
footer p { margin: 0 0 1rem; color: var(--gris); font-size: .9375rem; }
footer .geant { font: 400 25.5vw/.82 Anton, Impact, sans-serif; margin: 0 0 -.06em; color: var(--blanc); text-align: center; }

@media (max-width: 820px) {
  .entete nav a:not(:last-child) { display: none; }
  .titre { font-size: 21.5vw; }
  .hero { grid-template-columns: 1fr; align-content: center; padding-top: 5rem; }
  .hero h1 { font-size: 19vw; }
  .hero-texte p { margin-block: 1rem; }
  .onglets { justify-content: flex-start; }
  .ouvrir { right: .5rem; bottom: .5rem; padding: .3rem .7rem; font-size: .75rem; }
  .barre-url { font-size: .8125rem; }
  .methode li { grid-template-columns: 2.5rem 1fr; }
  .methode li p { grid-column: 2; }
  .formules, .options, .demande, .raisons, .exigence div { grid-template-columns: 1fr; }
  .options p { grid-column: 1; }
  .formule .pour { min-height: 0; }
  .collant-vu .collant { display: block; }
  .entete small { display: none; }
  .concepts li a { display: grid; grid-template-columns: 1fr; gap: .5rem; padding-block: 1.25rem; }
  .concepts img { display: block; border-radius: 8px; aspect-ratio: 8 / 5; width: 100%; height: auto; object-fit: cover; }
  .concepts .metier { text-align: left; }
  .vignette { display: none; }
}
@media (hover: none) { .vignette { display: none; } }
@media (prefers-reduced-motion: reduce) {
  .concepts .nom, .hero { transition: none; }
  .ecran img.arrive { animation: none; }
  .bandeau div { animation: none; }
}