/* ============================================================
   FOLONEO SIGNATURE — Feuille de style (v3)
   Cabinet de conseil haut de gamme, mobile-first iPhone,
   esthétique éditoriale + infographie sobre.
   ============================================================ */

/* ---- 1. Polices (Bunny Fonts RGPD) ---- */
@import url('https://fonts.bunny.net/css?family=cormorant-garamond:400,400i,500,500i,600,600i|inter:300,400,500,600&display=swap');

/* ---- 2. Variables ---- */

:root {
  --color-ivory: #F5F1E8;
  --color-ivory-dark: #EDE7D5;
  --color-ivory-darker: #E4DCC5;
  --color-ink: #1A1A1A;
  --color-text: #2D2D2D;
  --color-grey: #5A5A5A;
  --color-grey-light: #8A8A8A;
  --color-bronze: #8B6F47;
  --color-bronze-dark: #6B5636;
  --color-bronze-light: #B89A70;
  --color-bronze-pale: #D9C6A8;
  --color-border: #E0D8C4;
  --color-border-strong: #C9BFA7;

  --font-serif: 'Cormorant Garamond', 'Garamond', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Tailles condensées */
  --max-content: 1320px;
  --max-wide: 1480px;
  --pad-x: clamp(1.25rem, 4vw, 3.5rem);

  /* Échelle d'espace plus serrée */
  --s-0: 0.25rem;
  --s-1: 0.5rem;
  --s-2: 1rem;
  --s-3: 1.5rem;
  --s-4: 2rem;
  --s-5: 3rem;
  --s-6: 4.5rem;
  --s-7: 6rem;

  /* Timings */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast: 200ms var(--ease);
  --t-med: 350ms var(--ease);
  --t-slow: 600ms var(--ease-out);

  --header-h: 72px;
}

/* ---- 3. Reset ---- */

*, *::before, *::after { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0; padding: 0;
  background: var(--color-ivory);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

@media (min-width: 768px) { body { font-size: 17px; line-height: 1.7; } }

img, picture, svg { max-width: 100%; display: block; }

button, input, select, textarea { font: inherit; color: inherit; }

::selection { background: var(--color-bronze); color: var(--color-ivory); }

/* ---- 4. Typographie ---- */

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--color-ink);
  letter-spacing: -0.015em;
  line-height: 1.1;
  margin: 0 0 var(--s-3);
  text-wrap: balance;
}

h1 { font-size: clamp(2.5rem, 8vw, 5rem); }
h2 { font-size: clamp(1.875rem, 4.5vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.625rem); }
h4 { font-size: 1.125rem; }

p { margin: 0 0 1.1em; text-wrap: pretty; }

.overline {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-bronze);
  margin: 0 0 var(--s-3);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  white-space: nowrap;
}

.overline::before, .overline::after {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--color-bronze);
  opacity: 0.6;
}
.overline.no-flourish::before, .overline.no-flourish::after { display: none; }

.italic-lead {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: var(--color-grey);
  line-height: 1.4;
  font-weight: 400;
}

blockquote { margin: 0; padding: 0; }

a {
  color: var(--color-bronze-dark);
  text-decoration: none;
  transition: color var(--t-fast);
}
a:hover, a:focus-visible { color: var(--color-bronze); }
a:focus-visible {
  outline: 2px solid var(--color-bronze);
  outline-offset: 3px;
  border-radius: 2px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-bronze-dark);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  padding-bottom: 2px;
  position: relative;
  font-weight: 500;
}
.link-arrow::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--color-bronze);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-med);
}
.link-arrow:hover::after, .link-arrow:focus-visible::after { transform: scaleX(1); }

.link-arrow .arrow {
  transition: transform var(--t-med);
}
.link-arrow:hover .arrow { transform: translateX(3px); }

/* ---- 5. Layout ---- */

.container {
  width: 100%;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}
.container-wide { max-width: var(--max-wide); }

section {
  padding: clamp(3rem, 9vw, 7rem) 0;
  position: relative;
}

.section-header {
  margin-bottom: clamp(2rem, 5vw, 4rem);
  max-width: 820px;
}
.section-header.text-center { margin-left: auto; margin-right: auto; }
.section-header h2 { margin-bottom: 0; }
.section-header .italic-lead { margin-top: var(--s-3); }

.separator {
  display: block;
  width: 48px;
  height: 1px;
  background: var(--color-bronze);
  border: 0;
  margin: var(--s-3) auto;
  opacity: 0.7;
}

hr.hairline {
  border: 0;
  height: 1px;
  background: var(--color-border);
  margin: var(--s-5) 0;
}

/* ---- 6. Header ---- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 241, 232, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-med), background var(--t-med);
}
.site-header.scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(245, 241, 232, 0.96);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--pad-x);
  max-width: var(--max-wide);
  margin: 0 auto;
  height: var(--header-h);
  gap: var(--s-3);
}

.site-logo {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  color: var(--color-ink);
  line-height: 1;
  font-weight: 500;
  transition: color var(--t-fast);
  flex-shrink: 0;
  letter-spacing: 0.01em;
}
.site-logo:hover { color: var(--color-bronze-dark); }
.site-logo .logo-mark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
}
.site-logo .logo-mark::before {
  content: "";
  width: 7px; height: 7px;
  background: var(--color-bronze);
  border-radius: 50%;
  display: inline-block;
  transform: translateY(-2px);
}

.site-nav ul {
  list-style: none;
  padding: 0; margin: 0;
  display: flex;
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
  align-items: center;
}

.site-nav a {
  color: var(--color-text);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.5rem 0;
  position: relative;
  display: inline-block;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0; height: 1px;
  background: var(--color-bronze);
  transition: width var(--t-med), left var(--t-med);
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--color-bronze-dark); }
.site-nav a:hover::after, .site-nav a[aria-current="page"]::after { width: 100%; left: 0; }

.site-nav a.nav-cta {
  border: 1px solid var(--color-bronze);
  padding: 0.6rem 1.1rem;
  color: var(--color-bronze-dark);
  transition: all var(--t-med);
  white-space: nowrap;
}
.site-nav a.nav-cta::after { display: none; }
.site-nav a.nav-cta:hover {
  background: var(--color-bronze);
  color: var(--color-ivory);
}

/* Hamburger */
.nav-toggle {
  display: none;
  background: none; border: 0;
  cursor: pointer;
  color: var(--color-ink);
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 200;
  padding: 0;
}
.nav-toggle .bars {
  width: 22px; height: 14px;
  position: relative;
  display: block;
}
.nav-toggle .bars::before,
.nav-toggle .bars::after,
.nav-toggle .bars span {
  content: "";
  position: absolute;
  left: 0; width: 100%; height: 1px;
  background: currentColor;
  transition: transform var(--t-med), opacity var(--t-fast), top var(--t-med);
}
.nav-toggle .bars::before { top: 0; }
.nav-toggle .bars span { top: 50%; transform: translateY(-50%); display: block; }
.nav-toggle .bars::after { bottom: 0; }

.nav-toggle[aria-expanded="true"] .bars::before {
  top: 50%; transform: translateY(-50%) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .bars span { opacity: 0; }
.nav-toggle[aria-expanded="true"] .bars::after {
  bottom: auto; top: 50%;
  transform: translateY(-50%) rotate(-45deg);
}

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: fixed;
    inset: 0;
    background: var(--color-ivory);
    padding: calc(var(--header-h) + 2rem) var(--pad-x) calc(env(safe-area-inset-bottom, 1rem) + 2rem);
    transform: translateX(100%);
    transition: transform 450ms var(--ease-out);
    z-index: 150;
    overflow-y: auto;
    visibility: hidden;
  }
  .site-nav.open { transform: translateX(0); visibility: visible; }

  .site-nav ul { flex-direction: column; gap: 0; align-items: stretch; }

  .site-nav li {
    border-bottom: 1px solid var(--color-border);
    opacity: 0;
    transform: translateX(16px);
    transition: opacity 400ms var(--ease-out), transform 400ms var(--ease-out);
  }
  .site-nav.open li { opacity: 1; transform: translateX(0); }
  .site-nav.open li:nth-child(1) { transition-delay: 60ms; }
  .site-nav.open li:nth-child(2) { transition-delay: 120ms; }
  .site-nav.open li:nth-child(3) { transition-delay: 180ms; }
  .site-nav.open li:nth-child(4) { transition-delay: 240ms; }
  .site-nav.open li:nth-child(5) { transition-delay: 300ms; }

  .site-nav a {
    display: block;
    padding: 1.1rem 0;
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.5rem;
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
  }
  .site-nav a::after { display: none; }

  .site-nav a.nav-cta {
    margin-top: 1rem;
    text-align: center;
    padding: 1rem 1.25rem;
    border: 1px solid var(--color-bronze);
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-style: normal;
  }
  .site-nav a.nav-cta::after { display: none; }

  body.nav-open { overflow: hidden; }
}

/* ---- 7. Hero ---- */

.hero {
  min-height: calc(100svh - var(--header-h));
  min-height: calc(100vh - var(--header-h));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: clamp(3rem, 10vh, 7rem) var(--pad-x) clamp(2rem, 6vh, 4rem);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 30%, rgba(139, 111, 71, 0.06), transparent 60%),
    radial-gradient(ellipse 60% 40% at 50% 100%, rgba(139, 111, 71, 0.04), transparent 50%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1000px;
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero h1 {
  margin: 0 0 var(--s-3);
  font-size: clamp(2.75rem, 9vw, 5.5rem);
  line-height: 1.02;
  font-weight: 400;
  letter-spacing: -0.025em;
}

.hero .hero-subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.125rem, 2.5vw, 1.625rem);
  color: var(--color-grey);
  margin: 0 0 var(--s-3);
  font-weight: 400;
  line-height: 1.3;
}

.hero .hero-call {
  font-size: 0.9375rem;
  color: var(--color-text);
  margin: var(--s-3) auto var(--s-4);
  max-width: 560px;
  line-height: 1.65;
}

.hero-actions {
  display: inline-flex;
  gap: 0.875rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* Strip infographique en bas du hero */
.hero-metrics {
  width: 100%;
  max-width: var(--max-wide);
  margin: clamp(3rem, 6vh, 5rem) auto 0;
  padding: 1.75rem var(--pad-x);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-3);
  position: relative;
  z-index: 1;
}

.hero-metrics .metric {
  text-align: center;
  padding: 0 var(--s-2);
  position: relative;
}

.hero-metrics .metric:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 15%;
  bottom: 15%;
  width: 1px;
  background: var(--color-border);
}

.hero-metrics .metric-value {
  font-family: var(--font-serif);
  font-size: clamp(1.375rem, 2.5vw, 1.875rem);
  color: var(--color-ink);
  line-height: 1;
  margin-bottom: 0.5rem;
  display: block;
  font-weight: 500;
}

.hero-metrics .metric-value em {
  color: var(--color-bronze);
  font-style: italic;
}

.hero-metrics .metric-label {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-grey);
  font-weight: 500;
}

@media (max-width: 640px) {
  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--s-2);
    padding: 1.25rem var(--pad-x);
  }
  .hero-metrics .metric {
    padding: 0.75rem 0;
  }
  .hero-metrics .metric:nth-child(-n+2)::after { display: none; }
  .hero-metrics .metric:nth-child(odd)::after {
    content: "";
    position: absolute;
    right: 0; top: 20%; bottom: 20%;
    width: 1px;
    background: var(--color-border);
  }
  .hero-metrics .metric:nth-child(-n+2) {
    border-bottom: 1px solid var(--color-border);
  }
  .hero-metrics .metric-value { font-size: 1.25rem; }
  .hero-metrics .metric-label { font-size: 0.625rem; letter-spacing: 0.12em; }
}

/* Animation hero */
.hero .overline,
.hero h1,
.hero .hero-subtitle,
.hero .separator,
.hero .hero-call,
.hero-actions,
.hero-metrics {
  opacity: 0;
  animation: heroFade 800ms var(--ease-out) forwards;
}
.hero .overline       { animation-delay: 80ms; }
.hero h1              { animation-delay: 200ms; }
.hero .hero-subtitle  { animation-delay: 320ms; }
.hero .separator      { animation-delay: 440ms; }
.hero .hero-call      { animation-delay: 560ms; }
.hero-actions         { animation-delay: 680ms; }
.hero-metrics         { animation-delay: 800ms; }

@keyframes heroFade {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- 8. Boutons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-bronze-dark);
  background: transparent;
  border: 1px solid var(--color-bronze);
  padding: 1rem 2.25rem;
  min-height: 48px;
  cursor: pointer;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: color var(--t-med);
  z-index: 1;
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-bronze);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 350ms var(--ease-out);
  z-index: -1;
}
.btn:hover, .btn:focus-visible { color: var(--color-ivory); outline: none; }
.btn:hover::before, .btn:focus-visible::before { transform: scaleX(1); }

.btn-ghost { border-color: var(--color-ink); color: var(--color-ink); }
.btn-ghost::before { background: var(--color-ink); }

/* ---- 9. Méthode — timeline verticale numérotée ---- */

.method-steps {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}

/* Ligne verticale de timeline */
.method-steps::before {
  content: "";
  position: absolute;
  left: 40px;
  top: 24px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--color-bronze) 20%, var(--color-bronze) 80%, transparent);
  opacity: 0.3;
}

.method-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: clamp(1.5rem, 3vw, 2.5rem) 0;
  align-items: start;
  position: relative;
}

.method-step:not(:last-child) { border-bottom: 1px solid var(--color-border); }

.method-step .step-node {
  width: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.method-step .roman {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  color: var(--color-bronze);
  line-height: 1;
  background: var(--color-ivory);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-bronze);
  border-radius: 50%;
  position: relative;
  z-index: 1;
  transition: all var(--t-med);
}

.bg-tinted .method-step .roman { background: var(--color-ivory-dark); }

.method-step:hover .roman {
  background: var(--color-bronze);
  color: var(--color-ivory);
}

.method-step .duration {
  font-family: var(--font-sans);
  font-size: 0.625rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-grey-light);
  margin-top: 0.5rem;
  text-align: center;
}

.method-step h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  margin: 0 0 0.5rem;
  font-weight: 500;
}

.method-step p { margin: 0; color: var(--color-text); font-size: 0.9375rem; }
.method-step p + p { margin-top: 0.75em; }

@media (max-width: 640px) {
  .method-steps::before { left: 25px; }
  .method-step { grid-template-columns: 50px 1fr; gap: 1rem; padding: 1.25rem 0; }
  .method-step .step-node { width: 50px; }
  .method-step .roman { width: 44px; height: 44px; font-size: 1.25rem; }
  .method-step .duration { font-size: 0.5625rem; }
}

/* ---- 10. Triptyque typographique ---- */

.triptych-editorial {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.triptych-editorial > article {
  padding: clamp(2rem, 3.5vw, 3rem) clamp(1.25rem, 2.5vw, 2rem);
  border-right: 1px solid var(--color-border);
  position: relative;
  transition: background var(--t-med);
}
.triptych-editorial > article:last-child { border-right: 0; }
.triptych-editorial > article:hover { background: rgba(139, 111, 71, 0.03); }

.triptych-editorial .roman-big {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(2.25rem, 4vw, 3.5rem);
  color: var(--color-bronze);
  line-height: 1;
  margin-bottom: var(--s-3);
  display: block;
  letter-spacing: 0.02em;
  font-weight: 500;
}

.triptych-editorial .card-icon {
  display: block;
  width: 44px;
  height: 44px;
  margin-bottom: var(--s-3);
  color: var(--color-bronze);
}

.triptych-editorial h3 {
  font-size: clamp(1.125rem, 1.8vw, 1.375rem);
  margin: 0 0 var(--s-2);
  line-height: 1.25;
}
.triptych-editorial h3::after {
  content: "";
  display: block;
  width: 24px; height: 1px;
  background: var(--color-bronze);
  margin-top: var(--s-2);
  opacity: 0.6;
}

.triptych-editorial p {
  color: var(--color-grey);
  font-size: 0.875rem;
  line-height: 1.65;
  margin-top: var(--s-3);
}

@media (max-width: 900px) {
  .triptych-editorial { grid-template-columns: 1fr; }
  .triptych-editorial > article { border-right: 0; border-bottom: 1px solid var(--color-border); }
  .triptych-editorial > article:last-child { border-bottom: 0; }
}

/* ---- 11. Split texte / citation ---- */

.split {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: var(--s-4); }
}

.pull-quote {
  position: relative;
  padding: clamp(2rem, 4vw, 3rem);
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
}
.pull-quote::before, .pull-quote::after {
  content: "";
  position: absolute;
  width: 32px; height: 32px;
  border: 1px solid var(--color-bronze);
  opacity: 0.5;
}
.pull-quote::before { top: 10px; left: 10px; border-right: 0; border-bottom: 0; }
.pull-quote::after  { bottom: 10px; right: 10px; border-left: 0; border-top: 0; }

.pull-quote .quote-mark {
  font-family: var(--font-serif);
  font-size: 4rem;
  color: var(--color-bronze);
  line-height: 0.6;
  opacity: 0.35;
  display: block;
  margin-bottom: 0.75rem;
}

.pull-quote blockquote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.25rem, 2vw, 1.625rem);
  line-height: 1.4;
  color: var(--color-ink);
  margin: 0 0 var(--s-3);
  text-wrap: balance;
}

.pull-quote cite {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-style: normal;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-grey);
  display: block;
  padding-top: var(--s-3);
  border-top: 1px solid var(--color-border);
}

/* ---- 12. Études de cas ---- */

.case-list {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 1100px;
  margin: 0 auto;
  border-top: 1px solid var(--color-border);
}

.case-item {
  padding: clamp(1.75rem, 3vw, 2.75rem) 0;
  border-bottom: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(1rem, 3vw, 3rem);
  align-items: start;
  position: relative;
  transition: background var(--t-med);
}

.case-item::before {
  content: "";
  position: absolute;
  left: -16px; top: 0; bottom: 0;
  width: 2px;
  background: var(--color-bronze);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform var(--t-med);
}
.case-item:hover::before { transform: scaleY(1); }

.case-item .case-label {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-bronze);
  line-height: 1.5;
  font-weight: 500;
}

.case-item h3 {
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  margin: 0 0 var(--s-2);
  line-height: 1.2;
  font-weight: 500;
}

.case-item p {
  margin-bottom: var(--s-2);
  color: var(--color-grey);
  font-size: 0.9375rem;
  line-height: 1.6;
}

@media (max-width: 860px) {
  .case-item { grid-template-columns: 1fr; gap: 0.75rem; padding: 2rem 0; }
}

/* ---- 13. Principes ---- */

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
}

.principle {
  padding: var(--s-3) 0;
  transition: transform var(--t-med);
}
.principle:hover { transform: translateY(-4px); }

.principle .icon-ornament {
  width: 36px; height: 36px;
  margin-bottom: var(--s-3);
  color: var(--color-bronze);
  transition: transform var(--t-med);
}
.principle:hover .icon-ornament { transform: rotate(-8deg); }

.principle h3 {
  font-size: clamp(1.125rem, 1.8vw, 1.375rem);
  margin-bottom: var(--s-2);
  position: relative;
  display: inline-block;
  font-weight: 500;
}
.principle h3::after {
  content: "";
  display: block;
  width: 32px; height: 1px;
  background: var(--color-bronze);
  margin-top: var(--s-2);
}

.principle p { color: var(--color-grey); font-size: 0.9375rem; line-height: 1.7; margin: 0; }

@media (max-width: 900px) {
  .principles { grid-template-columns: 1fr; gap: var(--s-4); }
}

/* ---- 14. Cabinet + certifications ---- */

.cabinet-text {
  max-width: 900px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 1.7;
}

.certifications {
  display: flex;
  gap: 0.625rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--s-5);
  padding-top: var(--s-5);
  border-top: 1px solid var(--color-border);
}

.certifications span {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-grey);
  padding: 0.5rem 0.875rem;
  border: 1px solid var(--color-border-strong);
  transition: all var(--t-med);
}
.certifications span:hover {
  color: var(--color-bronze-dark);
  border-color: var(--color-bronze);
}

.certifications span sup {
  color: var(--color-bronze);
  font-size: 0.7em;
  vertical-align: super;
  line-height: 0;
  margin-left: 0.15em;
  font-weight: 500;
}

.certifications-legend {
  max-width: 640px;
  margin: var(--s-3) auto 0;
  text-align: center;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--color-grey-light);
  font-style: italic;
  font-family: var(--font-serif);
}

.certifications-legend sup {
  color: var(--color-bronze);
  font-style: normal;
  font-family: var(--font-sans);
  font-weight: 500;
  margin-right: 0.15em;
}

/* ---- 15. Partenaires ---- */

.partners {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: clamp(1.5rem, 4vw, 4rem);
  max-width: 1100px;
  margin: 0 auto;
  align-items: start;
}
.partners-separator {
  background: var(--color-bronze);
  opacity: 0.3;
  width: 1px;
  justify-self: center;
  align-self: stretch;
  min-height: 100%;
}

.partner-card {
  padding: 0 clamp(0.5rem, 2vw, 1.5rem);
  text-align: center;
  transition: transform var(--t-med);
}
.partner-card:hover { transform: translateY(-3px); }

.partner-logo {
  height: 64px;
  margin: 0 auto var(--s-3);
  display: flex;
  align-items: center;
  justify-content: center;
}
.partner-logo img {
  max-height: 56px;
  width: auto;
  filter: grayscale(100%);
  opacity: 0.75;
  transition: filter 600ms var(--ease-out), opacity 600ms var(--ease-out);
}
.partner-card:hover .partner-logo img { filter: grayscale(0%); opacity: 1; }

.partner-card .separator { margin: 0 auto var(--s-3); }

.partner-card h3 {
  font-size: clamp(1.25rem, 2vw, 1.625rem);
  margin-bottom: 0.25rem;
  font-weight: 500;
}

.partner-card .baseline {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-grey);
  font-size: 0.9375rem;
  margin: 0 auto var(--s-3);
  line-height: 1.4;
  text-wrap: balance;
  text-align: center;
  max-width: 32ch;
}

.partner-card p {
  text-align: left;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-grey);
}

.partner-card .collab {
  font-size: 0.9375rem;
  color: var(--color-grey);
  border-top: 1px solid var(--color-border);
  padding-top: var(--s-3);
  margin-top: var(--s-3);
  font-style: italic;
  font-family: var(--font-serif);
}

.partner-card .partner-link {
  display: inline-block;
  margin-top: var(--s-3);
  color: var(--color-bronze-dark);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding-bottom: 2px;
  position: relative;
  font-weight: 500;
}
.partner-card .partner-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--color-bronze);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--t-med);
}
.partner-card .partner-link:hover::after { transform: scaleX(1); }

@media (max-width: 860px) {
  .partners { grid-template-columns: 1fr; gap: var(--s-5); }
  .partners-separator { display: none; }
  .partner-card {
    padding: var(--s-5) 0 0;
    border-top: 1px solid var(--color-border);
  }
  .partner-card:first-child { border-top: 0; padding-top: 0; }
}

/* ---- 16. Formulaire contact ---- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.6fr;
  gap: clamp(1.75rem, 4vw, 3.5rem);
  max-width: 1300px;
  margin: 0 auto;
}

@media (max-width: 1024px) {
  .contact-grid { grid-template-columns: 1fr; gap: var(--s-5); }
}

.contact-col h3 {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--color-bronze);
  margin-bottom: var(--s-2);
}
.contact-col h3::after {
  content: "";
  display: block;
  width: 24px; height: 1px;
  background: var(--color-bronze);
  margin-top: 0.5rem;
  opacity: 0.6;
}

.contact-col p, .contact-col a {
  font-size: 1.125rem;
  color: var(--color-ink);
  font-family: var(--font-serif);
  line-height: 1.4;
}
.contact-col p.small {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-grey);
  line-height: 1.55;
  margin-top: var(--s-2);
}
.contact-col a { transition: color var(--t-fast); }
.contact-col a:hover { color: var(--color-bronze-dark); }

form.contact-form { display: grid; gap: var(--s-2); }

form.contact-form label {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-grey);
  display: block;
  margin-bottom: 0.375rem;
}

form.contact-form .field { margin-bottom: var(--s-2); }

form.contact-form input,
form.contact-form select,
form.contact-form textarea {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--color-border);
  padding: 0.875rem 0;
  color: var(--color-ink);
  font-size: 1rem; /* 16px min, iOS no-zoom */
  transition: border-color var(--t-fast);
  border-radius: 0;
  font-family: var(--font-serif);
  min-height: 44px;
}
form.contact-form input:focus,
form.contact-form select:focus,
form.contact-form textarea:focus {
  outline: none;
  border-bottom-color: var(--color-bronze);
}
form.contact-form input::placeholder, form.contact-form textarea::placeholder {
  color: var(--color-grey-light);
  font-style: italic;
}
form.contact-form select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%238B6F47'%3E%3Cpath d='M10 14l-5-5h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
  padding-right: 1.5rem;
  cursor: pointer;
}
form.contact-form .radio-group {
  display: flex;
  gap: var(--s-3);
  margin-top: 0.4rem;
}
form.contact-form .radio-group label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-transform: none;
  letter-spacing: 0;
  font-size: 1rem;
  color: var(--color-text);
  margin: 0;
  cursor: pointer;
  font-family: var(--font-serif);
  font-weight: 400;
  min-height: 44px;
}
form.contact-form input[type="radio"] {
  width: auto; margin: 0;
  accent-color: var(--color-bronze);
  min-height: auto;
}
form.contact-form .honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
  height: 0;
}
form.contact-form button[type="submit"] {
  margin-top: var(--s-3);
  justify-self: start;
}
form.contact-form .legal {
  font-size: 0.6875rem;
  color: var(--color-grey-light);
  margin-top: var(--s-2);
  line-height: 1.55;
  font-family: var(--font-sans);
  font-style: normal;
}

/* ---- 17. Footer ---- */

.site-footer {
  background: var(--color-ivory-dark);
  border-top: 1px solid var(--color-border);
  padding: clamp(2.5rem, 5vw, 4rem) 0 var(--s-3);
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 64px; height: 1px;
  background: var(--color-bronze);
  opacity: 0.5;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  max-width: var(--max-content);
  margin: 0 auto var(--s-5);
  padding: 0 var(--pad-x);
}

.footer-grid h4 {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-bronze);
  margin-bottom: var(--s-3);
}

.footer-grid p {
  font-size: 0.875rem;
  color: var(--color-grey);
  margin-bottom: 0.5rem;
  font-family: var(--font-serif);
  line-height: 1.5;
}

.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 0.5rem; }
.footer-grid a {
  font-size: 0.875rem;
  color: var(--color-text);
  font-family: var(--font-serif);
  transition: color var(--t-fast);
}
.footer-grid a:hover { color: var(--color-bronze-dark); }

.footer-bottom {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--s-3) var(--pad-x) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.6875rem;
  color: var(--color-grey-light);
  letter-spacing: 0.08em;
}

@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--s-4); }
}

/* ---- 18. Scroll animations ---- */

.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
  will-change: opacity, transform;
}
.fade-in.is-visible { opacity: 1; transform: translateY(0); }

.fade-in-stagger > * {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}
.fade-in-stagger.is-visible > * { opacity: 1; transform: translateY(0); }
.fade-in-stagger.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.fade-in-stagger.is-visible > *:nth-child(2) { transition-delay: 80ms; }
.fade-in-stagger.is-visible > *:nth-child(3) { transition-delay: 160ms; }
.fade-in-stagger.is-visible > *:nth-child(4) { transition-delay: 240ms; }
.fade-in-stagger.is-visible > *:nth-child(5) { transition-delay: 320ms; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in, .fade-in-stagger > * { opacity: 1; transform: none; }
  .hero > * { opacity: 1 !important; animation: none !important; }
  html { scroll-behavior: auto; }
}

/* ---- 19. Fonds alternés ---- */

.bg-tinted { background: var(--color-ivory-dark); }
.bg-ink { background: var(--color-ink); color: var(--color-ivory); }
.bg-ink h2, .bg-ink h3 { color: var(--color-ivory); }
.bg-ink .overline { color: var(--color-bronze-light); }
.bg-ink .separator { background: var(--color-bronze-light); opacity: 0.5; }
.bg-ink p { color: rgba(245, 241, 232, 0.85); }

/* ---- 20. Utilitaires ---- */

.text-center { text-align: center; }
.text-grey { color: var(--color-grey); }
.italic { font-style: italic; }
.mt-0 { margin-top: 0; }
.mb-3 { margin-bottom: var(--s-3); }
.mt-5 { margin-top: var(--s-5); }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

/* ---- 21. Pages internes ---- */

.page-header {
  padding: clamp(4rem, 8vw, 7rem) 0 clamp(2rem, 5vw, 4rem);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 30%, rgba(139, 111, 71, 0.05), transparent 70%);
  pointer-events: none;
}
.page-header > .container { position: relative; }
.page-header h1 { margin: var(--s-2) 0; }
.page-header .intro {
  max-width: 680px;
  margin: var(--s-3) auto 0;
  color: var(--color-grey);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
  line-height: 1.5;
  text-wrap: balance;
}

.breadcrumb {
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-grey-light);
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 1.25rem var(--pad-x) 0;
}
.breadcrumb a { color: var(--color-grey-light); transition: color var(--t-fast); }
.breadcrumb a:hover { color: var(--color-bronze-dark); }
.breadcrumb span[aria-hidden="true"] { margin: 0 0.5rem; color: var(--color-bronze); }

.centered-page {
  min-height: 70svh;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--s-5) var(--pad-x);
}
.centered-page .inner { max-width: 560px; text-align: center; }
.centered-page h1 { font-size: clamp(2rem, 5vw, 2.75rem); margin-bottom: var(--s-3); }

/* Étude de cas article */
.case-article .meta {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-bronze);
  margin-bottom: var(--s-2);
  font-weight: 500;
}
.case-article h2 {
  font-size: clamp(1.375rem, 2vw, 1.75rem);
  margin-top: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: var(--s-2);
  font-weight: 500;
}
.case-article h2::before {
  content: "";
  display: block;
  width: 32px; height: 1px;
  background: var(--color-bronze);
  margin-bottom: var(--s-3);
}
.case-article p { line-height: 1.7; }

.device-list {
  list-style: none;
  padding: 0; margin: 0 0 var(--s-4);
}
.device-list li {
  padding: 0.875rem 0 0.875rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--color-grey);
  position: relative;
}
.device-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 1.5rem;
  width: 8px; height: 1px;
  background: var(--color-bronze);
}
.device-list li:last-child { border-bottom: 0; }

/* ---- 22. Mot du dirigeant — page Qui sommes-nous ---- */

.director-word {
  max-width: 720px;
  margin: 0 auto;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.125rem, 1.6vw, 1.3125rem);
  line-height: 1.7;
  color: var(--color-text);
  font-weight: 400;
}
.director-word p { margin-bottom: 1.2em; }
.director-word p:first-of-type::first-letter {
  font-family: var(--font-serif);
  font-size: 4rem;
  font-weight: 500;
  float: left;
  line-height: 0.9;
  margin: 0.12em 0.12em 0 0;
  color: var(--color-bronze);
  font-style: normal;
}
.director-word em {
  font-style: normal;
  color: var(--color-ink);
  font-weight: 500;
}

.director-signature {
  max-width: 720px;
  margin: var(--s-6) auto 0;
  padding-top: var(--s-5);
  border-top: 1px solid var(--color-border);
  text-align: left;
}
.director-signature .sig-script {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  color: var(--color-ink);
  line-height: 1;
  margin: 0 0 var(--s-2);
  transform: rotate(-2deg);
  display: inline-block;
  letter-spacing: -0.01em;
  font-weight: 500;
}
.director-signature .sig-title {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-grey);
  letter-spacing: 0.05em;
  line-height: 1.5;
}

/* Bandeau "En bref" */
.director-meta {
  max-width: 1100px;
  margin: var(--s-4) auto var(--s-6);
  padding: var(--s-5) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-3);
  text-align: center;
}
.director-meta .meta-item {
  padding: 0 var(--s-2);
  position: relative;
}
.director-meta .meta-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0; top: 10%; bottom: 10%;
  width: 1px;
  background: var(--color-border);
}
.director-meta .meta-value {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 500;
  color: var(--color-bronze);
  display: block;
  line-height: 1;
  margin-bottom: 0.5rem;
  font-style: italic;
}
.director-meta .meta-label {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-grey);
  font-weight: 500;
}

@media (max-width: 640px) {
  .director-meta { grid-template-columns: 1fr; gap: 0; padding: var(--s-4) 0; }
  .director-meta .meta-item {
    padding: var(--s-3) 0;
    border-right: 0 !important;
  }
  .director-meta .meta-item:not(:last-child)::after {
    right: 10%; left: 10%; top: auto; bottom: 0;
    width: auto; height: 1px;
  }
}

/* ---- 23. Bloc "En chiffres" infographie ---- */

.metrics-panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
  max-width: var(--max-content);
  margin: 0 auto;
  background: var(--color-ivory);
}
.metrics-panel .metric {
  padding: clamp(1.75rem, 3.5vw, 3rem) clamp(1rem, 2vw, 2rem);
  text-align: center;
  position: relative;
  border-right: 1px solid var(--color-border);
  transition: background var(--t-med);
}
.metrics-panel .metric:last-child { border-right: 0; }
.metrics-panel .metric:hover { background: rgba(139, 111, 71, 0.03); }

.metrics-panel .metric-value {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  color: var(--color-bronze);
  line-height: 1;
  display: block;
  margin-bottom: 0.75rem;
  font-style: italic;
  letter-spacing: 0.01em;
}
.metrics-panel .metric-label {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-grey);
  font-weight: 500;
  line-height: 1.4;
}

@media (max-width: 860px) {
  .metrics-panel { grid-template-columns: repeat(2, 1fr); }
  .metrics-panel .metric:nth-child(-n+2) { border-bottom: 1px solid var(--color-border); }
  .metrics-panel .metric:nth-child(2) { border-right: 0; }
}
@media (max-width: 420px) {
  .metrics-panel { grid-template-columns: 1fr; }
  .metrics-panel .metric { border-right: 0; border-bottom: 1px solid var(--color-border); }
  .metrics-panel .metric:last-child { border-bottom: 0; }
}

/* ---- 24. Zone d'intervention (carte texte) ---- */

.zone-map {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.zone-primary {
  padding: var(--s-4);
  border: 1px solid var(--color-border);
  background: var(--color-ivory);
}
.zone-primary .zone-label {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-bronze);
  font-weight: 500;
  margin-bottom: var(--s-2);
  display: block;
}
.zone-primary ul {
  list-style: none;
  padding: 0; margin: 0;
}
.zone-primary li {
  padding: 0.625rem 0;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-serif);
  font-size: 1.125rem;
  color: var(--color-ink);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.zone-primary li:last-child { border-bottom: 0; }
.zone-primary li .dept {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-bronze);
  letter-spacing: 0.1em;
  font-weight: 500;
}

.zone-secondary {
  padding: var(--s-4);
  text-align: center;
}
.zone-secondary .zone-label {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-grey);
  font-weight: 500;
  margin-bottom: var(--s-2);
  display: block;
}
.zone-secondary p {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.125rem, 1.8vw, 1.375rem);
  color: var(--color-grey);
  line-height: 1.5;
  margin: 0;
  text-wrap: balance;
}

@media (max-width: 720px) {
  .zone-map { grid-template-columns: 1fr; }
}