/* =========================================================
   Arcus Partners - Piste 2 · Éditoriale (Arimo)
   Copie de la piste 4, sans le serif de titrage : Arimo partout
   ========================================================= */

:root {
  /* Les 5 couleurs de la charte */
  --ink: #333932;         /* vert foncé */
  --charcoal: #4E5759;    /* gris */
  --beige: #DBD9D0;
  --grey-light: #DDE1E1;  /* gris clair */
  --sage: #798270;        /* vert clair */

  /* Rôles */
  --paper: var(--beige);
  --paper-2: #FFFFFF;
  --muted: var(--charcoal);
  --sage-deep: var(--sage);
  --navy: var(--ink);
  --line: rgba(51, 57, 50, .18);
  --placeholder: var(--grey-light);

  --serif: "Arimo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --sans: "Arimo", system-ui, -apple-system, "Segoe UI", sans-serif;

  --gutter: clamp(20px, 5vw, 80px);
  --max: 1360px;
  --section-y: clamp(72px, 10vw, 140px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--sans); font-size: 17px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3, p, figure, blockquote { margin: 0; }
ol, ul { margin: 0; padding: 0; list-style: none; }
/* Sur le beige, le vert clair (2,8:1) n'est conforme à aucune taille : l'italique passe en gris */
em { font-style: italic; color: var(--charcoal); }
:focus-visible { outline: 2px solid var(--navy); outline-offset: 3px; }
.contact :focus-visible, .site-footer :focus-visible { outline-color: #fff; }

.skip-link { position: absolute; left: 16px; top: -48px; padding: 10px 16px; background: var(--ink); color: #fff; z-index: 100; }
.skip-link:focus { top: 12px; }

.container { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }

.eyebrow { font-size: 13px; font-weight: 500; letter-spacing: .18em; text-transform: uppercase; color: var(--charcoal); }
.eyebrow--center { text-align: center; }

.placeholder { background: var(--placeholder); display: flex; align-items: flex-end; padding: 20px; }
.placeholder-label { font-size: 12px; letter-spacing: .06em; color: var(--muted); }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(219,217,208,.92); backdrop-filter: blur(8px); }
.header-inner { height: 84px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.logo { display: inline-flex; align-items: center; gap: .3em; color: var(--ink); font-size: 38px; }
.logo-mark { width: .775em; height: 1em; flex: none; }
.logo-text { display: flex; flex-direction: column; gap: .1em; line-height: .76; letter-spacing: 0; }
.logo-text b { font-size: .66em; font-weight: 700; }
.logo-text span { font-size: .56em; font-weight: 400; }
.logo--sm { font-size: 30px; }
.header-right { display: flex; align-items: center; gap: 28px; }
.header-contact { font-size: 15px; border-bottom: 1px solid currentColor; }
.menu-btn {
  display: inline-flex; align-items: center; gap: 12px; min-height: 44px;
  background: none; border: 0; padding: 0 4px; font: inherit; font-size: 15px; color: var(--ink); cursor: pointer;
}
.menu-btn-icon { display: inline-flex; flex-direction: column; gap: 6px; width: 24px; }
.menu-btn-icon i { display: block; height: 1.5px; background: currentColor; transition: transform .3s ease; }
.menu-btn[aria-expanded="true"] .menu-btn-icon i:first-child { transform: translateY(3.75px) rotate(45deg); }
.menu-btn[aria-expanded="true"] .menu-btn-icon i:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* Menu plein écran */
.menu {
  position: fixed; inset: 84px 0 0; z-index: 49; background: var(--paper);
  overflow-y: auto; animation: menuIn .35s ease;
}
@keyframes menuIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
.menu-inner { padding-block: 48px; display: flex; flex-direction: column; gap: 40px; }
.menu-list a {
  display: flex; align-items: baseline; gap: 24px; padding-block: 14px;
  font-family: var(--serif); font-weight: 400; font-size: clamp(36px, 6vw, 72px); line-height: 1.1;
  border-bottom: 1px solid var(--line); transition: color .2s, padding-left .3s;
}
.menu-list a span { font-family: var(--sans); font-size: 14px; color: var(--charcoal); min-width: 28px; }
.menu-list a:hover { color: var(--charcoal); padding-left: 12px; }
.menu-lang { font-size: 15px; color: var(--muted); }
.menu-lang a[aria-current] { color: var(--ink); font-weight: 600; }
body.menu-open { overflow: hidden; }

/* ---------- Hero ---------- */
.hero { padding-top: clamp(64px, 10vw, 140px); padding-bottom: clamp(48px, 6vw, 80px); }
.hero .eyebrow { margin-bottom: 32px; }
.hero-title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(52px, 9.4vw, 148px); line-height: .98; letter-spacing: -.025em;
  max-width: 12ch;
}
.hero-foot {
  margin-top: clamp(40px, 5vw, 72px);
  display: flex; justify-content: space-between; align-items: flex-end; gap: 32px 80px; flex-wrap: wrap;
}
.hero-lead { max-width: 520px; font-size: clamp(17px, 1.4vw, 20px); color: var(--charcoal); }
.link-arrow {
  display: inline-flex; align-items: center; gap: 12px; min-height: 44px;
  font-size: 17px; font-weight: 500; border-bottom: 1px solid var(--ink); padding-bottom: 4px;
}
.link-arrow span { transition: transform .3s ease; }
.link-arrow:hover span { transform: translateX(6px); }

.panorama { aspect-ratio: 16 / 6; min-height: 240px; }
.caption { margin-top: 16px; font-family: var(--serif); font-size: 18px; text-align: right; }

/* ---------- Sections ---------- */
.section { padding-block: var(--section-y); }
.section--tint { background: var(--paper-2); }
.section-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 3fr); gap: 40px 64px; }
.section-grid > .eyebrow { padding-top: 14px; }
.h2 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(38px, 4.6vw, 68px); line-height: 1.05; letter-spacing: -.015em;
  margin-bottom: clamp(40px, 5vw, 72px);
}

/* Expertises en lignes */
.rows { border-top: 1px solid var(--ink); }
.row {
  display: grid; grid-template-columns: 56px minmax(0, 1.2fr) minmax(0, 1fr) 32px;
  gap: 24px; align-items: baseline; padding-block: 32px;
  border-bottom: 1px solid var(--line); transition: background-color .3s;
}
.row-num { font-family: var(--serif); font-size: 20px; color: var(--charcoal); }
.row-title { font-family: var(--serif); font-weight: 400; font-size: clamp(24px, 2.4vw, 34px); line-height: 1.15; }
.row-text { color: var(--charcoal); font-size: 16px; }
.row-arrow { font-size: 22px; color: var(--charcoal); transition: transform .3s ease; justify-self: end; }
.row:hover .row-arrow { transform: translateX(6px); }

/* Citation mission */
.quote {
  margin: 40px auto 0; max-width: 22ch; text-align: center;
  font-family: var(--serif); font-weight: 400; font-style: italic;
  font-size: clamp(32px, 4.4vw, 64px); line-height: 1.12; color: var(--ink);
}
.quote-intro { margin: 40px auto 0; max-width: 640px; text-align: center; color: var(--charcoal); }
.trio { margin-top: clamp(56px, 7vw, 96px); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 48px; }
.trio-item { border-top: 1px solid var(--ink); padding-top: 24px; display: flex; flex-direction: column; gap: 12px; }
.trio-num { font-family: var(--serif); font-size: 56px; font-weight: 400; line-height: 1; color: var(--sage); }
.trio-item h3 { font-size: 19px; font-weight: 600; }
.trio-item p { color: var(--charcoal); font-size: 16px; }

/* Valeurs - bandeau défilant */
.values-band { padding-block: clamp(56px, 7vw, 96px); border-block: 1px solid var(--line); overflow: hidden; }
.values-band .eyebrow { margin-bottom: 32px; }
.marquee { overflow: hidden; }
.marquee-track { display: flex; width: max-content; animation: marquee 40s linear infinite; }
.marquee-track span {
  font-family: var(--serif); font-weight: 400; font-style: italic;
  font-size: clamp(44px, 6vw, 88px); line-height: 1.1; padding-inline: 40px; white-space: nowrap;
}
.marquee-track span::after { content: "·"; margin-left: 80px; color: var(--sage); font-style: normal; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; flex-wrap: wrap; width: auto; padding-inline: var(--gutter); }
  .marquee-track span[aria-hidden] { display: none; }
}

/* Équipe */
.team { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.member-photo { aspect-ratio: 3 / 4; filter: grayscale(1); }
.member figcaption { margin-top: 16px; display: flex; flex-direction: column; }
.member strong { font-family: var(--serif); font-weight: 400; font-size: 24px; }
.member span { font-size: 15px; color: var(--muted); }

/* Contact */
.contact { background: var(--charcoal); color: #fff; padding-block: var(--section-y); }
.contact em { color: var(--beige); }
.contact-inner { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 48px 80px; align-items: end; }
.contact-title { font-family: var(--serif); font-weight: 400; font-size: clamp(48px, 7vw, 108px); line-height: 1; letter-spacing: -.02em; }
.contact-side { display: flex; flex-direction: column; gap: 20px; font-size: 17px; }
.contact-mail {
  font-family: var(--serif); font-size: clamp(24px, 2.4vw, 34px);
  border-bottom: 1px solid currentColor; align-self: flex-start; padding-bottom: 4px;
}
.contact-mail:hover { color: #fff; }
.contact-meta { color: var(--grey-light); font-size: 15px; }
.contact .link-arrow { align-self: flex-start; border-color: currentColor; }

/* ---------- Page contact ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 56px 80px; align-items: start; }
.contact-form { display: flex; flex-direction: column; gap: 24px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 13px; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; color: var(--ink); }
.field label span { text-transform: none; letter-spacing: 0; font-weight: 400; color: var(--muted); }
.field input, .field textarea {
  font: inherit; font-size: 17px; padding: 10px 0; border: 0; border-bottom: 1px solid var(--ink);
  border-radius: 0; background: transparent; color: var(--ink); resize: vertical;
}
.field input:focus, .field textarea:focus { outline: none; border-bottom: 2px solid var(--ink); }
.btn {
  align-self: flex-start; min-height: 48px; padding: 12px 32px; border: 0; border-radius: 0;
  background: var(--ink); color: var(--paper); font: inherit; font-size: 16px; font-weight: 500; cursor: pointer; transition: background-color .2s;
}
.btn:hover { background: var(--charcoal); }
.form-note { font-size: 15px; color: var(--charcoal); }
.contact-info { display: flex; flex-direction: column; gap: 20px; border-top: 1px solid var(--ink); padding-top: 24px; }
.contact-info-title { font-family: var(--serif); font-weight: 400; font-size: clamp(28px, 3vw, 40px); line-height: 1.1; }
.contact-info address { font-style: normal; color: var(--charcoal); }
.contact-info .contact-mail { font-size: clamp(20px, 1.8vw, 26px); }
.map-frame { aspect-ratio: 4 / 3; overflow: hidden; filter: grayscale(1); }
.map-frame iframe { width: 100%; height: 100%; border: 0; display: block; }
.placeholder-label--static { font-size: 12px; letter-spacing: .06em; color: var(--muted); }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

/* Footer */
.site-footer { background: var(--ink); color: var(--grey-light); font-size: 14px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-block: 32px; flex-wrap: wrap; }
.site-footer .logo { color: #fff; }
.footer-links { display: flex; gap: 32px; flex-wrap: wrap; }
.footer-links a:hover { color: #fff; }

/* Apparition */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .reveal { opacity: 1; transform: none; transition: none; } }

/* Badge pistes */
.version-badge {
  position: fixed; left: 16px; bottom: 16px; z-index: 60;
  display: inline-flex; gap: 6px; align-items: center; min-height: 44px; padding: 10px 16px; border-radius: 999px;
  background: var(--ink); color: #fff; font-size: 14px; font-weight: 500; box-shadow: 0 6px 20px rgba(0,0,0,.18);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .header-inner { height: 68px; }
  .menu { inset: 68px 0 0; }
  .logo { font-size: 32px; }
  .header-contact { display: none; }
  .section-grid { grid-template-columns: 1fr; gap: 16px; }
  .section-grid > .eyebrow { padding-top: 0; }
  .row { grid-template-columns: 40px minmax(0, 1fr); gap: 8px 16px; padding-block: 24px; }
  .row-text { grid-column: 2; }
  .row-arrow { display: none; }
  .trio { grid-template-columns: 1fr; gap: 32px; }
  .team { grid-template-columns: 1fr; gap: 32px; }
  .member-photo { aspect-ratio: 4 / 3; }
  .contact-inner { grid-template-columns: 1fr; }
  .panorama { aspect-ratio: 4 / 3; }
  .caption { text-align: left; }
}