/* Concept : bandes pleine largeur alternant graphite (logo métallique) et papier froid ;
   accueil en deux colonnes, expertises en colonnes sur photo, réalisations en cartes.
   Le site garde volontairement un seul thème (son identité), toutes les couleurs sont définies ici. */
:root {
  --graphite: #14171B;
  --graphite-2: #1B1F25;
  --line-dark: #2D333B;
  --steel: #8E98A3;
  --steel-light: #C7CDD4;
  --paper: #F4F5F6;
  --white: #FFFFFF;
  --ink: #15181C;
  --muted: #5B636D;
  --line: #DCE0E4;
  --gold: #CFA052;        /* or du logo, sur fond sombre */
  --bronze: #95661F;      /* or lisible sur fond clair */
  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-accent: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-body: "Source Sans 3", "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --gutter-l: max(20px, env(safe-area-inset-left, 0px));
  --gutter-r: max(20px, env(safe-area-inset-right, 0px));
  color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-body); font-size: 17px; line-height: 1.6; }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 60; background: var(--graphite); }
img { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
h1, h2, h3 { font-family: var(--font-display); margin: 0; text-wrap: balance; letter-spacing: -0.015em; line-height: 1.08; }
p { margin: 0; }
.inner { max-width: 1200px; margin: 0 auto; padding-left: var(--gutter-l); padding-right: var(--gutter-r); }
.eyebrow { font-family: var(--font-mono); font-size: 12.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--bronze); }
.dark .eyebrow { color: var(--gold); }
.accent { font-family: var(--font-accent); font-style: italic; font-weight: 400; letter-spacing: 0; color: var(--bronze); }
.dark .accent { color: var(--gold); }
.tick { display: inline-block; width: .42em; height: .09em; background: var(--gold); margin-left: .08em; vertical-align: baseline; }
.btn { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 600; font-size: 15px; padding: 14px 22px; text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: background .2s, color .2s, border-color .2s; }
.btn-gold { background: var(--gold); color: var(--graphite); }
.btn-gold:hover { background: #E0B567; }
.btn-line { border-color: currentColor; color: inherit; background: transparent; }
.btn-line:hover { color: var(--gold); }
.dark { background: var(--graphite); color: #E9ECEF; }

/* Emplacements photo */
.ph { position: relative; overflow: hidden; background-color: #23282F;
  background-image: repeating-linear-gradient(135deg, rgba(255,255,255,.045) 0 1px, transparent 1px 14px), linear-gradient(160deg, #2A3038 0%, #1A1E23 100%);
  color: var(--steel-light); }
.ph-label { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; gap: 6px; padding: 16px; font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.ph-label b { font-family: var(--font-display); font-size: 30px; letter-spacing: 0; color: var(--gold); font-weight: 700; }
.ph-light { background-color: #E6E9EC; background-image: repeating-linear-gradient(135deg, rgba(21,24,28,.05) 0 1px, transparent 1px 14px); color: var(--muted); }
.ph-light .ph-label b { color: var(--bronze); }
.photo { position: relative; overflow: hidden; background: #23282F; }
.photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card .photo { aspect-ratio: 4 / 3; width: 100%; }
.approach-photo { aspect-ratio: 4 / 5; max-height: 560px; width: 100%; }
.band-photo { position: absolute; inset: 0; }
.band-photo img { width: 100%; height: 100%; object-fit: cover; }
.band-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(20,23,27,.55) 0%, rgba(20,23,27,.35) 40%, rgba(20,23,27,.8) 100%); }
.loc { position: absolute; left: 14px; bottom: 14px; z-index: 2; display: inline-flex; align-items: center; gap: 8px; background: rgba(20,23,27,.86); color: #F1F3F5; font-size: 13.5px; padding: 6px 12px; }
.loc::before { content: ""; width: 6px; height: 6px; background: var(--gold); border-radius: 50%; }

/* En-tête */
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; background: rgba(20,23,27,.96); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line-dark); color: #E9ECEF; }
.site-header .inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 76px; }
.brand img { height: 42px; width: auto; }
.nav { display: flex; align-items: center; gap: 30px; }
.nav a { text-decoration: none; font-family: var(--font-display); font-size: 15px; font-weight: 500; color: #D3D8DE; }
.nav a:hover { color: var(--gold); }
.nav .btn { padding: 10px 18px; color: var(--gold); border-color: var(--gold); }
.nav .btn:hover { background: var(--gold); color: var(--graphite); }
.menu-toggle { display: none; background: none; border: 1px solid var(--line-dark); color: #E9ECEF; font-family: var(--font-display); font-size: 14px; padding: 9px 14px; cursor: pointer; }

/* Accueil */
.hero .inner { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; padding-block: 64px 72px; align-items: stretch; }
.hero-text { display: grid; gap: 26px; align-content: center; }
.hero h1 { font-size: clamp(40px, 5.4vw, 70px); font-weight: 700; }
.hero h1 .accent { display: block; font-size: 1.08em; line-height: 1; margin-top: .06em; }
.hero-lede { color: #B9C0C8; font-size: 18.5px; max-width: 46ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.figures { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; border-top: 1px solid var(--line-dark); padding-top: 22px; }
.fig strong { display: block; font-family: var(--font-display); font-size: 36px; font-weight: 700; color: #F4F5F6; line-height: 1; font-variant-numeric: tabular-nums; }
.fig span { font-size: 14px; color: var(--steel); }
.fig.todo strong { color: var(--steel); border-bottom: 1px dashed var(--steel); display: inline-block; padding-bottom: 2px; }
.slides { position: relative; min-height: 520px; }
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity .9s ease; }
.slide.on { opacity: 1; }
.slide-count { position: absolute; right: 16px; top: 16px; z-index: 3; display: flex; align-items: center; gap: 12px; font-family: var(--font-mono); font-size: 12.5px; color: #F1F3F5; background: rgba(20,23,27,.7); padding: 6px 10px; }
.slide-count .bars { display: flex; gap: 4px; }
.slide-count .bars button { width: 22px; height: 3px; padding: 0; border: 0; background: rgba(255,255,255,.3); cursor: pointer; }
.slide-count .bars button[aria-current="true"] { background: var(--gold); }

/* Expertises en colonnes */
.expertises { position: relative; }
.exp-head { padding-block: 72px 32px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 20px 40px; }
.exp-head h2 { font-size: clamp(30px, 3.6vw, 46px); font-weight: 700; max-width: 18ch; }
.exp-head p { color: #B9C0C8; max-width: 44ch; }
.exp-band { position: relative; min-height: 540px; }
.exp-band > .ph { position: absolute; inset: 0; }
.exp-band > .ph .ph-label { place-content: start center; padding-top: 28px; }
.exp-cols { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); min-height: 540px; max-width: 1200px; margin: 0 auto; padding-left: var(--gutter-l); padding-right: var(--gutter-r); }
.exp-col { position: relative; display: flex; flex-direction: column; justify-content: flex-end; gap: 12px; padding: 26px 22px; border-left: 1px solid rgba(255,255,255,.14); outline-offset: -3px; transition: background .35s ease; }
.exp-col:last-child { border-right: 1px solid rgba(255,255,255,.14); }
.exp-col h3 { font-size: 22px; font-weight: 600; color: #F4F5F6; }
.exp-col .kicker { font-size: 15px; color: #C3C9D0; }
.exp-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; font-size: 15px; color: #DDE1E5; max-height: 0; overflow: hidden; opacity: 0; transition: max-height .45s ease, opacity .35s ease; }
.exp-col ul li { padding-left: 16px; position: relative; }
.exp-col ul li::before { content: ""; position: absolute; left: 0; top: .7em; width: 8px; height: 1px; background: var(--gold); }
.exp-col:hover, .exp-col:focus-within, .exp-col:focus { background: rgba(20,23,27,.84); }
.exp-col:hover ul, .exp-col:focus-within ul, .exp-col:focus ul { max-height: 260px; opacity: 1; }
.exp-col.is-new h3::after { content: "Travaux"; margin-left: 10px; vertical-align: middle; font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--graphite); background: var(--gold); padding: 3px 7px; }

/* Approche */
.approach .inner { padding-block: 88px; display: grid; gap: 56px; }
.approach-top { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 56px; align-items: center; }
.approach-top h2 { font-size: clamp(30px, 3.6vw, 46px); font-weight: 700; margin: 14px 0 20px; }
.approach-top p { color: var(--muted); font-size: 18px; max-width: 54ch; }
.approach-top .ph { aspect-ratio: 4 / 5; max-height: 520px; width: 100%; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.steps li { padding: 22px 20px 0 0; display: grid; gap: 8px; align-content: start; position: relative; }
.steps li::before { content: ""; position: absolute; top: -7px; left: 0; width: 12px; height: 12px; background: var(--paper); border: 2px solid var(--bronze); border-radius: 50%; }
.steps .num { font-family: var(--font-mono); font-size: 13px; color: var(--bronze); }
.steps h3 { font-size: 18px; font-weight: 600; }
.steps p { font-size: 15.5px; color: var(--muted); }

/* Réalisations */
.work { background: var(--white); }
.work .inner { padding-block: 88px; display: grid; gap: 36px; }
.section-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 16px 32px; }
.section-head h2 { font-size: clamp(30px, 3.6vw, 46px); font-weight: 700; margin-top: 12px; }
.link-more { font-family: var(--font-display); font-weight: 600; font-size: 15px; text-decoration: none; color: var(--bronze); border-bottom: 1px solid currentColor; padding-bottom: 2px; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px 26px; }
.card { display: grid; gap: 14px; align-content: start; min-width: 0; text-decoration: none; }
.card .ph { aspect-ratio: 4 / 3; width: 100%; }
.card h3 { font-size: 20px; font-weight: 600; }
.card .meta { font-size: 15px; color: var(--muted); margin-top: -6px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags span { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .04em; text-transform: uppercase; border: 1px solid var(--line); color: var(--muted); padding: 3px 8px; }

/* Environnements */
.sectors .inner { padding-block: 88px; display: grid; gap: 36px; }
.sector-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.sector { padding: 28px 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; gap: 10px; align-content: start; background: var(--paper); transition: background .25s; }
.sector:hover { background: var(--white); }
.sector h3 { font-size: 21px; font-weight: 600; }
.sector p { color: var(--muted); font-size: 16px; }
.sector .who { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--bronze); }

/* Références */
.refs { background: var(--white); border-top: 1px solid var(--line); }
.refs .inner { padding-block: 80px; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 56px; align-items: start; }
.refs h2 { font-size: clamp(26px, 3vw, 38px); font-weight: 700; margin: 12px 0 26px; }
.logos { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.logo-slot { aspect-ratio: 5 / 2; border: 1px dashed #B9C0C8; display: grid; place-content: center; font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); text-align: center; }
.quals { background: var(--paper); padding: 28px; display: grid; gap: 16px; }
.quals h3 { font-size: 20px; }
.quals ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.quals li { display: flex; gap: 12px; align-items: baseline; font-size: 16px; }
.quals li::before { content: ""; flex: none; width: 9px; height: 9px; background: var(--bronze); transform: rotate(45deg) translateY(-1px); }
.quals .small { font-size: 14.5px; color: var(--muted); }

/* Contact */
.contact .inner { padding-block: 88px; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 64px; }
.contact h2 { font-size: clamp(32px, 4vw, 52px); font-weight: 700; margin: 14px 0 22px; }
.contact-info { display: grid; gap: 22px; align-content: start; }
.contact-info p { color: #B9C0C8; }
.coords { display: grid; gap: 14px; border-top: 1px solid var(--line-dark); padding-top: 22px; }
.coords div { display: grid; gap: 2px; }
.coords span { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--steel); }
.coords a, .coords address { font-style: normal; font-size: 17px; color: #F1F3F5; text-decoration: none; user-select: text; }
.coords a:hover { color: var(--gold); }
form.quote { background: var(--graphite-2); border: 1px solid var(--line-dark); padding: clamp(20px, 3vw, 36px); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field { display: grid; gap: 7px; min-width: 0; }
.field.full { grid-column: 1 / -1; }
.field label, .legend-lbl { font-size: 14px; color: #C3C9D0; }
.legend-lbl { padding: 0; margin-bottom: 7px; }
.field input, .field select, .field textarea { width: 100%; font: inherit; font-size: 16px; color: #F1F3F5; background: var(--graphite); border: 1px solid var(--line-dark); padding: 12px 14px; border-radius: 0; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--gold); outline: none; }
.field textarea { min-height: 130px; resize: vertical; }
.needs { display: flex; flex-wrap: wrap; gap: 8px; position: relative; }
.needs input { position: absolute; left: 0; top: 0; width: 1px; height: 1px; margin: 0; padding: 0; opacity: 0; pointer-events: none; overflow: hidden; }
.needs label { border: 1px solid var(--line-dark); padding: 8px 14px; font-size: 15px; color: #D3D8DE; cursor: pointer; }
.needs input:checked + label { border-color: var(--gold); color: var(--graphite); background: var(--gold); }
.needs input:focus-visible + label { outline: 2px solid var(--gold); outline-offset: 2px; }
.form-foot { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; }
.form-foot small { color: var(--steel); font-size: 13.5px; max-width: 44ch; }
.form-msg { grid-column: 1 / -1; border-left: 3px solid var(--gold); padding: 10px 14px; background: rgba(207,160,82,.1); color: #F1F3F5; font-size: 15px; }

/* Pied de page */
.site-footer { background: #0F1114; color: #9AA3AD; font-size: 14.5px; }
.site-footer .inner { padding-block: 40px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 20px; }
.site-footer img { height: 34px; width: auto; }
.site-footer .baseline { font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--gold); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--gold); }

/* Responsive */
@media (max-width: 1020px) {
  .exp-cols { grid-template-columns: minmax(0, 1fr); min-height: 0; padding-block: 24px; gap: 0; }
  .exp-band { min-height: 0; }
  .exp-band > .ph .ph-label { place-content: center; opacity: .5; }
  .exp-col { border-left: 0; border-right: 0 !important; border-top: 1px solid rgba(255,255,255,.14); background: rgba(20,23,27,.8); padding: 22px 4px; }
  .exp-col ul { max-height: none; opacity: 1; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 28px; border-top: 0; }
  .steps li { border-top: 2px solid var(--ink); }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sector-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .menu-toggle { display: inline-block; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 0; background: var(--graphite); border-bottom: 1px solid var(--line-dark); padding: 8px var(--gutter-r) 18px var(--gutter-l); }
  .nav.open { display: flex; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--line-dark); }
  .nav .btn { margin-top: 14px; justify-content: center; }
  .hero .inner, .approach-top, .refs .inner, .contact .inner { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .hero .inner { padding-block: 40px 48px; }
  .slides { min-height: 0; aspect-ratio: 4 / 3; }
  .approach-top .ph { aspect-ratio: 3 / 2; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .brand img { height: 34px; }
  .figures { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .fig strong { font-size: 30px; }
  .steps, .cards, .sector-grid, .logos { grid-template-columns: minmax(0, 1fr); }
  .logos { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  form.quote { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .slide, .exp-col, .exp-col ul, .sector { transition: none; }
}

/* ---- Pages intérieures ---- */
.nav a[aria-current="page"] { color: var(--gold); }
.page-head { position: relative; overflow: hidden; }
.page-head .bg { position: absolute; inset: 0; }
.page-head .bg img { width: 100%; height: 100%; object-fit: cover; opacity: .35; }
.page-head .bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(20,23,27,.97) 0%, rgba(20,23,27,.8) 55%, rgba(20,23,27,.55) 100%); }
.page-head .inner { position: relative; padding-block: 72px 64px; display: grid; gap: 18px; }
.page-head h1 { font-size: clamp(38px, 5vw, 64px); font-weight: 700; max-width: 18ch; }
.page-head p { color: #B9C0C8; font-size: 18.5px; max-width: 58ch; }
.crumbs { font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--steel); }
.crumbs a { text-decoration: none; color: var(--steel); }
.crumbs a:hover { color: var(--gold); }
.section { padding-block: 88px; }
.section.white { background: var(--white); }
.section .inner { display: grid; gap: 40px; }
.lead { font-size: 19px; color: var(--muted); max-width: 62ch; }
.h2 { font-size: clamp(30px, 3.6vw, 46px); font-weight: 700; margin-top: 12px; }

/* À propos */
.about-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 64px; align-items: start; }
.about-text { display: grid; gap: 20px; }
.about-text p { color: var(--muted); font-size: 18px; }
.about-photo { aspect-ratio: 4 / 5; width: 100%; }
.facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.fact { padding: 26px 22px 0 0; display: grid; gap: 6px; align-content: start; }
.fact strong { font-family: var(--font-display); font-size: 40px; font-weight: 700; line-height: 1; color: var(--ink); font-variant-numeric: tabular-nums; }
.fact span { color: var(--muted); font-size: 15px; }
.values { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.value { padding: 30px 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; gap: 10px; align-content: start; background: var(--white); }
.value h3 { font-size: 21px; font-weight: 600; }
.value p { color: var(--muted); font-size: 16px; }

/* Expertises */
.exp-rows { display: grid; gap: 80px; }
.exp-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.exp-row:nth-child(even) .photo { order: 2; }
.exp-row .photo { aspect-ratio: 4 / 3; width: 100%; }
.exp-row .txt { display: grid; gap: 16px; }
.exp-row h2 { font-size: clamp(28px, 3vw, 40px); font-weight: 700; }
.exp-row p { color: var(--muted); font-size: 17.5px; }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 24px; }
.checklist li { padding-left: 20px; position: relative; font-size: 16px; }
.checklist li::before { content: ""; position: absolute; left: 0; top: .72em; width: 10px; height: 2px; background: var(--bronze); }
.domains-wrap { display: grid; gap: 28px; }
.domains { display: flex; flex-wrap: wrap; gap: 10px; }
.domains span { border: 1px solid var(--line-dark); color: #DDE1E5; padding: 9px 14px; font-size: 15px; }

/* Réalisations */
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filters button { font: inherit; font-family: var(--font-display); font-size: 14.5px; font-weight: 500; border: 1px solid var(--line); background: var(--white); color: var(--ink); padding: 9px 16px; cursor: pointer; }
.filters button:hover { border-color: var(--ink); }
.filters button[aria-pressed="true"] { background: var(--ink); color: var(--white); border-color: var(--ink); }
.card .year { font-family: var(--font-mono); font-size: 12px; color: var(--bronze); letter-spacing: .06em; }
.card[hidden] { display: none !important; }
.card p.desc { color: var(--muted); font-size: 15.5px; }
.studies { display: grid; border-top: 1px solid var(--line); }
.study { display: grid; grid-template-columns: 90px minmax(0, 1.3fr) minmax(0, 1fr); gap: 20px; padding-block: 18px; border-bottom: 1px solid var(--line); align-items: baseline; }
.study .year { font-family: var(--font-mono); font-size: 13px; color: var(--bronze); }
.study h3 { font-size: 18px; font-weight: 600; }
.study p { color: var(--muted); font-size: 15.5px; }

/* Bandeau d'appel */
.cta-band { background: var(--graphite); color: #E9ECEF; }
.cta-band .inner { padding-block: 56px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 24px; }
.cta-band h2 { font-size: clamp(26px, 3vw, 38px); font-weight: 700; max-width: 22ch; }

/* Mentions légales */
.legal { max-width: 760px; display: grid; gap: 34px; }
.legal .block { display: grid; gap: 10px; }
.legal h2 { font-size: 24px; font-weight: 700; }
.legal p, .legal li { color: var(--muted); font-size: 16.5px; }
.legal ul { margin: 0; padding-left: 20px; display: grid; gap: 6px; }
.legal strong { color: var(--ink); font-weight: 600; }

.split { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 56px; align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: minmax(0, 1fr); gap: 36px; } }

/* Formulaire : champ anti-robot */
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }

/* Pied de page */
.site-footer .foot-grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr); gap: 40px; padding-block: 56px 36px; align-items: start; }
.foot-brand { display: grid; gap: 14px; justify-items: start; }
.foot-brand p { max-width: 36ch; }
.foot-col { display: grid; gap: 8px; align-content: start; }
.foot-col .lbl { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--steel); margin-bottom: 4px; }
.foot-col address { font-style: normal; }
.site-footer .foot-bottom { border-top: 1px solid #23282F; padding-block: 20px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }

@media (max-width: 860px) {
  .about-grid, .exp-row { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .exp-row:nth-child(even) .photo { order: 0; }
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 20px; }
  .values { grid-template-columns: minmax(0, 1fr); }
  .study { grid-template-columns: 70px minmax(0, 1fr); }
  .study p { grid-column: 2; }
  .site-footer .foot-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .section { padding-block: 64px; }
}
@media (max-width: 560px) {
  .checklist { grid-template-columns: minmax(0, 1fr); }
}

/* Références clients */
ul.logos { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 12px; }
ul.logos li { flex: 1 1 calc(25% - 12px); min-width: 0; aspect-ratio: 5 / 2; border: 1px solid var(--line); background: var(--white); display: grid; place-items: center; padding: 14px 18px; }
ul.logos img { max-width: 100%; max-height: 46px; width: auto; height: auto; filter: grayscale(1) brightness(.6) contrast(1.15); opacity: .7; transition: filter .2s, opacity .2s; }
ul.logos li:hover img { filter: none; opacity: 1; }
@media (max-width: 860px) { ul.logos { justify-content: center; } ul.logos li { flex: 0 1 calc(50% - 6px); } }
ul.logos img[alt="RATP"] { max-height: 54px; }
ul.logos img[alt="Safran"] { max-height: 34px; }