:root {
  --ivoire: #F4F1E8;
  --ivoire-clair: #FAF9F5;
  --encre: #17201B;
  --encre-douce: #59625D;
  --vert: #173F35;
  --vert-clair: #DCE6DE;
  --ambre: #FFB547;
  --ambre-pale: #FFE2AB;
  --blanc: #FFFDF8;
  --filet: rgba(23, 32, 27, 0.16);
  --titre: "Spectral", Georgia, serif;
  --ui: "Inter", system-ui, sans-serif;
  --largeur: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ivoire);
  color: var(--encre);
  font: 400 16px/1.65 var(--ui);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
button, input { font: inherit; }
:focus-visible { outline: 3px solid var(--ambre); outline-offset: 3px; }
.enveloppe { width: min(100% - 40px, var(--largeur)); margin-inline: auto; }
.lien-invisible { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.saut-contenu { position: fixed; top: -80px; left: 20px; z-index: 100; padding: 12px 16px; background: var(--encre); color: white; text-decoration: none; transition: top .2s; }
.saut-contenu:focus { top: 20px; }

.entete { position: sticky; top: 0; z-index: 20; background: rgba(244, 241, 232, .9); border-bottom: 1px solid var(--filet); backdrop-filter: blur(14px); }
.barre-navigation { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.marque { display: inline-flex; align-items: center; gap: 11px; font: 700 15px/1 var(--ui); letter-spacing: .17em; text-transform: uppercase; text-decoration: none; }
.marque-signe { width: 22px; height: 22px; border: 1px solid var(--encre); border-radius: 50%; position: relative; }
.marque-signe::before, .marque-signe::after { content: ""; position: absolute; inset: 50% auto auto 50%; background: var(--encre); transform: translate(-50%, -50%) rotate(45deg); }
.marque-signe::before { width: 2px; height: 14px; }
.marque-signe::after { width: 14px; height: 2px; }
.navigation { display: flex; align-items: center; gap: 28px; }
.navigation .secondaire { color: var(--encre-douce); font-size: 14px; text-decoration: none; }
.navigation .secondaire:hover { color: var(--encre); }
.bouton { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 24px; border: 1px solid var(--encre); background: var(--encre); color: var(--blanc); font-size: 14px; font-weight: 600; text-decoration: none; transition: transform .18s, background .18s, color .18s; }
.bouton:hover { transform: translateY(-2px); background: var(--ambre); color: var(--encre); }
.bouton--petit { min-height: 42px; padding-inline: 18px; }

.hero { padding: clamp(72px, 9vw, 132px) 0 clamp(74px, 9vw, 124px); overflow: hidden; }
.hero-grille { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(420px, .92fr); align-items: center; gap: clamp(48px, 8vw, 112px); }
.sur-titre { margin: 0 0 22px; color: var(--vert); font-size: 11px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.sur-titre span { display: inline-block; width: 28px; height: 1px; margin: 0 10px 3px 0; background: currentColor; }
.hero h1 { max-width: 760px; margin: 0 0 28px; font: 600 clamp(3.4rem, 2rem + 5vw, 6.5rem)/.92 var(--titre); letter-spacing: -.055em; }
.hero h1 em { color: var(--vert); font-weight: 500; }
.hero-texte { max-width: 660px; margin: 0; color: var(--encre-douce); font-size: clamp(1.05rem, .95rem + .45vw, 1.25rem); line-height: 1.6; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 28px; margin-top: 36px; }
.lien-fleche { font-size: 14px; font-weight: 600; text-decoration: none; }
.lien-fleche span { display: inline-block; margin-left: 8px; transition: transform .18s; }
.lien-fleche:hover span { transform: translate(3px, 3px); }

.boussole { position: relative; aspect-ratio: 1; width: min(100%, 530px); margin-inline: auto; border: 1px solid var(--filet); border-radius: 50%; }
.boussole::before, .boussole::after { content: ""; position: absolute; inset: 50% 7%; height: 1px; background: var(--filet); }
.boussole::after { transform: rotate(60deg); }
.boussole-orbite { position: absolute; inset: 16%; border: 1px solid var(--filet); border-radius: 50%; }
.boussole-orbite--2 { transform: rotate(120deg); }
.boussole-orbite::before { content: ""; position: absolute; inset: 50% -18%; height: 1px; background: var(--filet); transform: rotate(-60deg); }
.boussole-centre { position: absolute; inset: 50% auto auto 50%; display: grid; place-content: center; width: 132px; height: 132px; transform: translate(-50%, -50%); border-radius: 50%; background: var(--vert); color: white; text-align: center; font: 500 15px/1.35 var(--titre); }
.boussole-centre strong { color: var(--ambre); font-size: 20px; font-weight: 600; }
.repere { position: absolute; display: flex; gap: 7px; align-items: center; padding: 8px 10px; border: 1px solid var(--filet); background: var(--ivoire-clair); font-size: 11px; font-weight: 600; white-space: nowrap; }
.repere i { color: var(--vert); font-size: 9px; font-style: normal; }
.repere--1 { top: 3%; left: 50%; transform: translateX(-50%); border-color: var(--vert); background: var(--ambre-pale); }
.repere--2 { top: 24%; right: -6%; }
.repere--3 { bottom: 22%; right: -9%; }
.repere--4 { bottom: 3%; left: 50%; transform: translateX(-50%); }
.repere--5 { bottom: 22%; left: -9%; }
.repere--6 { top: 24%; left: -8%; }

.bandeau-promesse { border-block: 1px solid var(--filet); background: rgba(255,255,255,.25); }
.promesses { display: grid; grid-template-columns: repeat(3, 1fr); }
.promesses p { display: grid; grid-template-columns: auto 1fr; margin: 0; padding: 30px 34px; border-left: 1px solid var(--filet); color: var(--encre-douce); font-size: 13px; line-height: 1.5; }
.promesses p:last-child { border-right: 1px solid var(--filet); }
.promesses p > span { grid-row: 1 / 3; margin-right: 18px; color: var(--vert); font-size: 10px; font-weight: 700; }
.promesses strong { color: var(--encre); font-size: 15px; }

.section { padding: clamp(80px, 10vw, 140px) 0; }
.intro-section { display: grid; grid-template-columns: .7fr 1.2fr 1fr; align-items: start; gap: 60px; margin-bottom: 68px; }
.intro-section h2, .methode-intro h2, .philosophie-contenu h2, .contact-grille h2 { margin: 0; font: 600 clamp(2.35rem, 1.8rem + 2.4vw, 4.25rem)/1 var(--titre); letter-spacing: -.04em; }
.intro-section > p:last-child { margin: 8px 0 0; color: var(--encre-douce); }
.dimensions { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--filet); border-left: 1px solid var(--filet); }
.dimension { min-height: 270px; display: flex; flex-direction: column; padding: 30px; border-right: 1px solid var(--filet); border-bottom: 1px solid var(--filet); background: rgba(255,255,255,.18); }
.dimension--active { background: var(--ambre-pale); }
.dimension > div { display: flex; justify-content: space-between; align-items: center; }
.numero { color: var(--vert); font-size: 11px; font-weight: 700; }
.statut { padding: 5px 9px; border: 1px solid currentColor; border-radius: 99px; color: var(--encre-douce); font-size: 9px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.dimension--active .statut { background: var(--vert); color: white; }
.dimension h3 { margin: auto 0 12px; font: 600 1.65rem/1.1 var(--titre); letter-spacing: -.025em; }
.dimension p { margin: 0; color: var(--encre-douce); font-size: 14px; }

.section--sombre { background: var(--vert); color: var(--blanc); }
.methode-grille { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(70px, 11vw, 150px); }
.sur-titre--clair { color: var(--ambre); }
.methode-intro > p:last-child { max-width: 58ch; margin: 32px 0 0; color: rgba(255,255,255,.7); font-size: 17px; }
.etapes { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.22); }
.etapes li { display: grid; grid-template-columns: 45px 1fr; gap: 20px; padding: 27px 0; border-bottom: 1px solid rgba(255,255,255,.22); }
.etapes li > span { color: var(--ambre); font-size: 11px; font-weight: 700; }
.etapes h3 { margin: 0 0 6px; font: 600 1.35rem/1.2 var(--titre); }
.etapes p { margin: 0; color: rgba(255,255,255,.65); font-size: 14px; }

.philosophie { background: var(--ivoire-clair); }
.philosophie-carte { display: grid; grid-template-columns: 1fr 1fr; min-height: 650px; border: 1px solid var(--filet); }
.philosophie-visuel { position: relative; min-height: 560px; overflow: hidden; background: var(--ambre); }
.philosophie-visuel::before, .philosophie-visuel::after { content: ""; position: absolute; inset: 12%; border: 1px solid rgba(23,32,27,.28); border-radius: 50%; }
.philosophie-visuel::after { inset: 30%; }
.monogramme { position: absolute; inset: 50% auto auto 50%; transform: translate(-50%, -52%); color: var(--vert); font: 500 clamp(10rem, 16vw, 15rem)/1 var(--titre); }
.mot { position: absolute; z-index: 2; padding: 8px 12px; border: 1px solid var(--encre); background: var(--ambre-pale); font-size: 11px; font-weight: 600; }
.mot--1 { top: 12%; left: 9%; }
.mot--2 { top: 25%; right: 8%; }
.mot--3 { bottom: 18%; left: 8%; }
.mot--4 { right: 10%; bottom: 9%; }
.philosophie-contenu { display: flex; flex-direction: column; justify-content: center; padding: clamp(40px, 7vw, 88px); }
.grand-texte { margin: 28px 0; color: var(--encre-douce); font-size: 18px; }
.liste-verifiee { margin: 0 0 34px; padding: 0; list-style: none; }
.liste-verifiee li { position: relative; margin: 0; padding: 11px 0 11px 30px; border-bottom: 1px solid var(--filet); color: var(--encre-douce); font-size: 14px; }
.liste-verifiee li:first-child { border-top: 1px solid var(--filet); }
.liste-verifiee li::before { content: "✓"; position: absolute; left: 3px; color: var(--vert); font-weight: 700; }
.philosophie-contenu .bouton { align-self: flex-start; }

.manifeste { border-top: 1px solid var(--filet); }
.manifeste-grille { display: grid; grid-template-columns: .45fr 1.15fr .8fr; gap: clamp(40px, 8vw, 110px); align-items: start; }
.manifeste blockquote { margin: 0; font: 500 clamp(2rem, 1.4rem + 2vw, 3.25rem)/1.18 var(--titre); letter-spacing: -.035em; }
.principes { border-top: 1px solid var(--encre); }
.principes p { margin: 0; padding: 18px 0; border-bottom: 1px solid var(--filet); color: var(--encre-douce); font-size: 14px; }
.principes strong { display: block; margin-bottom: 4px; color: var(--encre); }

.contact-section { background: var(--encre); color: white; }
.contact-grille { display: grid; grid-template-columns: 1fr .85fr; gap: clamp(60px, 12vw, 160px); align-items: start; }
.contact-carte { padding-top: 5px; }
.contact-carte > p { max-width: 58ch; margin: 0 0 20px; color: rgba(255,255,255,.7); }
.contact-carte strong { color: white; font-weight: 600; }
.bouton--clair { margin-top: 12px; border-color: var(--ambre); background: var(--ambre); color: var(--encre); }
.bouton--clair:hover { background: var(--ambre-pale); }
.contact-adresse { margin-top: 14px !important; color: rgba(255,255,255,.48) !important; font-size: 12px; }

.pied { padding: 44px 0; background: var(--encre); color: rgba(255,255,255,.58); border-top: 1px solid rgba(255,255,255,.15); }
.pied-grille { display: grid; grid-template-columns: .5fr 1fr 1fr; gap: 40px; align-items: center; }
.marque--pied { color: white; }
.pied p { margin: 0; font-size: 13px; }
.pied nav { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 12px 22px; }
.pied nav a { font-size: 12px; text-decoration: none; }
.pied nav a:hover { color: white; }

.page-texte { padding: 76px 0 110px; background: var(--ivoire-clair); }
.page-texte .enveloppe { max-width: 780px; }
.page-texte h1, .page-vide h1 { margin: 0 0 10px; font: 600 clamp(2.5rem, 1.8rem + 2vw, 4rem)/1 var(--titre); letter-spacing: -.04em; }
.page-texte .date { margin: 0 0 44px; color: var(--encre-douce); font-size: 13px; }
.page-texte h2 { margin: 42px 0 10px; font: 600 1.55rem/1.2 var(--titre); }
.page-texte p, .page-texte li { color: var(--encre-douce); }
.page-texte a { color: var(--vert); }
.page-texte code { padding: 2px 5px; background: var(--vert-clair); }
.avertissement { padding: 20px 24px; border-left: 4px solid var(--ambre); background: var(--ambre-pale); }
.avertissement p { margin: 0; color: var(--encre); }
.page-vide { min-height: 65vh; display: grid; place-items: center; }

@media (prefers-reduced-motion: no-preference) {
  .entree { opacity: 0; transform: translateY(12px); animation: entree .7s cubic-bezier(.2,.7,.2,1) forwards; }
  .entree--2 { animation-delay: .14s; }
  @keyframes entree { to { opacity: 1; transform: none; } }
}

@media (max-width: 980px) {
  .navigation .secondaire { display: none; }
  .hero-grille { grid-template-columns: 1fr; }
  .hero-contenu { max-width: 760px; }
  .boussole { width: min(86vw, 520px); margin-top: 28px; }
  .intro-section { grid-template-columns: .5fr 1.5fr; }
  .intro-section > p:last-child { grid-column: 2; }
  .dimensions { grid-template-columns: repeat(2, 1fr); }
  .methode-grille, .contact-grille { grid-template-columns: 1fr; }
  .methode-intro { max-width: 760px; }
  .manifeste-grille { grid-template-columns: .35fr 1.2fr; }
  .principes { grid-column: 2; }
  .pied-grille { grid-template-columns: 1fr 1fr; }
  .pied nav { grid-column: 1 / -1; justify-content: flex-start; }
}

@media (max-width: 720px) {
  .enveloppe { width: min(100% - 32px, var(--largeur)); }
  .barre-navigation { min-height: 66px; }
  .hero { padding-top: 64px; }
  .hero h1 { font-size: clamp(3rem, 14vw, 4.9rem); }
  .boussole { width: 88%; }
  .repere { font-size: 9px; padding: 6px 8px; }
  .repere--2, .repere--3 { right: -12%; }
  .repere--5, .repere--6 { left: -12%; }
  .promesses { grid-template-columns: 1fr; }
  .promesses p, .promesses p:last-child { border: 0; border-bottom: 1px solid var(--filet); padding-inline: 0; }
  .intro-section { display: block; }
  .intro-section h2 { margin-bottom: 24px; }
  .dimensions { grid-template-columns: 1fr; }
  .dimension { min-height: 230px; }
  .philosophie-carte { grid-template-columns: 1fr; }
  .philosophie-visuel { min-height: 420px; }
  .manifeste-grille { grid-template-columns: 1fr; }
  .principes { grid-column: 1; }
  .contact-grille { gap: 48px; }
  .pied-grille { grid-template-columns: 1fr; }
  .pied nav { grid-column: auto; }
}

@media (max-width: 520px) {
  .navigation .bouton { min-height: 38px; padding-inline: 13px; font-size: 12px; }
  .marque { letter-spacing: .11em; }
  .marque-signe { width: 19px; height: 19px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .boussole-centre { width: 104px; height: 104px; }
  .boussole-centre strong { font-size: 16px; }
  .repere i { display: none; }
}