/* =========================================================
   IAEXPERT — Design System
   Palette : Vert forêt / Crème / Or
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=Inter:wght@300;400;500;600&display=swap');

/* ----- Variables ---------------------------------------- */
:root {
  --vert-foret:   #1A3A2A;
  --vert-moyen:   #2A5C42;
  --vert-clair:   #3D7A5A;
  --creme:        #F5F0E8;
  --creme-sombre: #EDE6D9;
  --or:           #C9A84C;
  --or-clair:     #E8B84B;
  --blanc:        #FFFFFF;
  --texte-sombre: #0D1F17;
  --texte-gris:   #5A6B63;
  --texte-clair:  #8A9990;

  --serif:  'Cormorant Garamond', Georgia, serif;
  --sans:   'Inter', system-ui, sans-serif;

  --rayon:  4px;
  --rayon-lg: 12px;

  --ombre: 0 4px 24px rgba(26,58,42,.12);
  --ombre-lg: 0 12px 48px rgba(26,58,42,.18);

  --transition: .3s cubic-bezier(.4,0,.2,1);
  --max-w: 1200px;

  --section-pad: clamp(64px, 8vw, 120px);
  --gap:         clamp(24px, 3vw, 48px);
}

/* ----- Reset -------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--sans);
  background-color: var(--creme);
  color: var(--texte-sombre);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ----- Typographie --------------------------------------- */
h1, h2, h3, h4, h5 {
  font-family: var(--serif);
  line-height: 1.15;
  font-weight: 400;
}

h1 { font-size: clamp(2.6rem, 5.5vw, 4.8rem); }
h2 { font-size: clamp(2rem,   4vw,  3.4rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 2rem); }
h4 { font-size: clamp(1.1rem, 1.8vw, 1.4rem); }

.eyebrow {
  font-family: var(--sans);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--or);
  display: block;
  margin-bottom: 1rem;
}

p { color: var(--texte-gris); max-width: 65ch; }

/* ----- Layout ------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 60px);
}

.section { padding-block: var(--section-pad); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }

/* ----- Boutons ------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .85rem 2rem;
  font-family: var(--sans);
  font-size: .875rem;
  font-weight: 600;
  letter-spacing: .06em;
  border-radius: var(--rayon);
  transition: var(--transition);
}

.btn-primary {
  background: var(--vert-foret);
  color: var(--creme);
  border: 2px solid var(--vert-foret);
}
.btn-primary:hover {
  background: var(--vert-moyen);
  border-color: var(--vert-moyen);
  transform: translateY(-2px);
  box-shadow: var(--ombre);
}

.btn-outline {
  background: transparent;
  color: var(--vert-foret);
  border: 2px solid var(--vert-foret);
}
.btn-outline:hover {
  background: var(--vert-foret);
  color: var(--creme);
}

.btn-or {
  background: var(--or);
  color: var(--vert-foret);
  border: 2px solid var(--or);
  font-weight: 700;
}
.btn-or:hover {
  background: var(--or-clair);
  border-color: var(--or-clair);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,168,76,.3);
}

/* ----- Header / Nav -------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.2rem 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.site-header.scrolled {
  background: rgba(245,240,232,.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(26,58,42,.1);
  padding: .8rem 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--vert-foret);
  letter-spacing: .02em;
}
.logo span { color: var(--or); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--texte-sombre);
  position: relative;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--or);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--vert-foret); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-cta { margin-left: 1rem; }

/* Burger */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--vert-foret);
  transition: var(--transition);
  transform-origin: center;
}

/* ----- Hero --------------------------------------------- */
.hero {
  min-height: 100svh;
  background: var(--vert-foret);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 80% 50%, rgba(42,92,66,.4) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 10% 80%, rgba(201,168,76,.08) 0%, transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content { padding-right: 2rem; }

.hero h1 {
  color: var(--creme);
  margin-bottom: 1.5rem;
}
.hero h1 em {
  font-style: italic;
  color: var(--or);
}

.hero-desc {
  color: rgba(245,240,232,.75);
  font-size: 1.125rem;
  margin-bottom: 2.5rem;
  max-width: 52ch;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card-stack {
  position: relative;
  width: 100%;
  max-width: 420px;
}

.hero-card {
  background: rgba(245,240,232,.08);
  border: 1px solid rgba(245,240,232,.15);
  border-radius: var(--rayon-lg);
  padding: 2rem;
  backdrop-filter: blur(8px);
  transition: transform var(--transition);
}

.hero-card:hover { transform: translateY(-4px); }

.hero-card + .hero-card { margin-top: 1rem; }

.hero-card-label {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: .5rem;
}

.hero-card-value {
  font-family: var(--serif);
  font-size: 1.8rem;
  color: var(--creme);
}

.hero-card-desc {
  font-size: .8rem;
  color: rgba(245,240,232,.6);
  margin-top: .25rem;
  max-width: none;
}

/* Scroll indicator */
.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  color: rgba(245,240,232,.4);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  animation: bounce 2s infinite;
}

.scroll-hint svg { width: 16px; height: 16px; stroke: currentColor; }

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ----- Section : Chiffres ------------------------------- */
.chiffres {
  background: var(--vert-foret);
  color: var(--creme);
  padding-block: clamp(48px, 6vw, 80px);
}

.chiffres-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: rgba(245,240,232,.1);
  border: 1px solid rgba(245,240,232,.1);
  border-radius: var(--rayon-lg);
  overflow: hidden;
}

.chiffre-item {
  background: var(--vert-foret);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: background var(--transition);
}
.chiffre-item:hover { background: var(--vert-moyen); }

.chiffre-nb {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  color: var(--or);
  line-height: 1;
  display: block;
}

.chiffre-label {
  font-size: .8rem;
  color: rgba(245,240,232,.65);
  margin-top: .5rem;
  max-width: none;
}

/* ----- Section : Services ------------------------------- */
.services { background: var(--creme); }

.section-header { margin-bottom: clamp(40px, 5vw, 72px); }
.section-header h2 { margin-bottom: .75rem; }
.section-header p { font-size: 1.1rem; }

.service-card {
  background: var(--blanc);
  border: 1px solid var(--creme-sombre);
  border-radius: var(--rayon-lg);
  padding: 2.5rem 2rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: var(--or);
  transition: height var(--transition);
}
.service-card:hover::before { height: 100%; }

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--ombre-lg);
  border-color: rgba(201,168,76,.3);
}

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--creme);
  border-radius: var(--rayon);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: background var(--transition);
}
.service-card:hover .service-icon { background: rgba(201,168,76,.15); }

.service-icon svg { width: 24px; height: 24px; stroke: var(--vert-foret); }

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: .75rem;
  color: var(--texte-sombre);
}
.service-card p { font-size: .925rem; }

.service-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-top: 1.5rem;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--vert-foret);
  transition: gap var(--transition), color var(--transition);
}
.service-link:hover { gap: .7rem; color: var(--or); }
.service-link svg { width: 14px; height: 14px; transition: transform var(--transition); }
.service-link:hover svg { transform: translateX(3px); }

/* ----- Section : Approche ------------------------------- */
.approche { background: var(--creme-sombre); }

.approche-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: center;
}

.approche-visual {
  position: relative;
}

.approche-img-wrap {
  border-radius: var(--rayon-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--vert-foret);
  display: flex;
  align-items: center;
  justify-content: center;
}

.approche-img-placeholder {
  font-family: var(--serif);
  font-size: 1.2rem;
  color: rgba(245,240,232,.4);
  text-align: center;
  padding: 2rem;
}

.approche-badge {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  background: var(--or);
  color: var(--vert-foret);
  border-radius: var(--rayon-lg);
  padding: 1.5rem 2rem;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  box-shadow: var(--ombre-lg);
}

.approche-badge small {
  display: block;
  font-family: var(--sans);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  opacity: .75;
  margin-top: .25rem;
}

.approche-content h2 { margin-bottom: 1.25rem; }
.approche-content p { margin-bottom: 1.5rem; }

.valeurs {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.valeur-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.valeur-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--or);
  margin-top: .55rem;
  flex-shrink: 0;
}

.valeur-item strong { color: var(--texte-sombre); display: block; margin-bottom: .2rem; font-weight: 600; }
.valeur-item p { font-size: .9rem; max-width: none; }

/* ----- Section : Blog / Articles ------------------------ */
.blog-preview { background: var(--blanc); }

.article-card {
  background: var(--creme);
  border-radius: var(--rayon-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--ombre);
}

.article-card-img {
  aspect-ratio: 16/9;
  background: var(--vert-foret);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.article-card-img img { width: 100%; height: 100%; object-fit: cover; }

.article-card-img-placeholder {
  font-family: var(--serif);
  font-size: 1rem;
  color: rgba(245,240,232,.35);
}

.article-card-body { padding: 1.75rem; flex: 1; display: flex; flex-direction: column; }

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.article-cat {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--or);
  background: rgba(201,168,76,.12);
  padding: .3rem .75rem;
  border-radius: 20px;
}

.article-date {
  font-size: .78rem;
  color: var(--texte-clair);
}

.article-card h3 { font-size: 1.2rem; margin-bottom: .6rem; color: var(--texte-sombre); }
.article-card p { font-size: .875rem; flex: 1; }

.article-card .lire-plus {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-top: 1.25rem;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--vert-foret);
  transition: gap var(--transition);
}
.article-card .lire-plus:hover { gap: .7rem; color: var(--or); }

/* ----- Newsletter --------------------------------------- */
.newsletter-section {
  background: var(--vert-foret);
  padding-block: clamp(60px, 7vw, 100px);
}

.newsletter-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  align-items: center;
}

.newsletter-content h2 { color: var(--creme); margin-bottom: .75rem; }
.newsletter-content p { color: rgba(245,240,232,.7); max-width: 50ch; }

.newsletter-form-wrap {
  background: rgba(245,240,232,.07);
  border: 1px solid rgba(245,240,232,.15);
  border-radius: var(--rayon-lg);
  padding: 2.5rem;
}

.newsletter-form-wrap h3 {
  color: var(--creme);
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: .8rem;
  font-weight: 600;
  color: rgba(245,240,232,.65);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: .4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: .85rem 1rem;
  background: rgba(245,240,232,.06);
  border: 1px solid rgba(245,240,232,.2);
  border-radius: var(--rayon);
  color: var(--creme);
  font-family: var(--sans);
  font-size: .9rem;
  transition: border-color var(--transition), background var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(245,240,232,.35); }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--or);
  background: rgba(245,240,232,.1);
}

.form-notice {
  font-size: .72rem;
  color: rgba(245,240,232,.4);
  margin-top: .75rem;
  max-width: none;
}

.form-success {
  display: none;
  padding: 1rem;
  background: rgba(42,92,66,.4);
  border: 1px solid rgba(201,168,76,.3);
  border-radius: var(--rayon);
  color: var(--or);
  font-size: .875rem;
  text-align: center;
  margin-top: 1rem;
}

/* ----- Contact section (homepage) ----------------------- */
.contact-section { background: var(--creme-sombre); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.contact-info h2 { margin-bottom: 1rem; }
.contact-info p { margin-bottom: 2rem; }

.contact-details { display: flex; flex-direction: column; gap: 1.25rem; }

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  background: var(--vert-foret);
  border-radius: var(--rayon);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-detail-icon svg { width: 18px; height: 18px; stroke: var(--or); }
.contact-detail strong { display: block; font-size: .8rem; font-weight: 600; color: var(--texte-sombre); text-transform: uppercase; letter-spacing: .08em; }
.contact-detail span { font-size: .9rem; color: var(--texte-gris); }

.contact-form {
  background: var(--blanc);
  border-radius: var(--rayon-lg);
  padding: 2.5rem;
  box-shadow: var(--ombre);
}

.contact-form h3 {
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
  color: var(--texte-sombre);
}

.contact-form .form-group label { color: var(--texte-gris); }
.contact-form .form-group input,
.contact-form .form-group textarea,
.contact-form .form-group select {
  background: var(--creme);
  border: 1px solid var(--creme-sombre);
  color: var(--texte-sombre);
}
.contact-form .form-group input::placeholder,
.contact-form .form-group textarea::placeholder { color: var(--texte-clair); }
.contact-form .form-group input:focus,
.contact-form .form-group textarea:focus {
  border-color: var(--vert-moyen);
  background: var(--blanc);
}

.contact-form textarea { height: 140px; resize: vertical; }

/* ----- Footer ------------------------------------------- */
.site-footer {
  background: var(--texte-sombre);
  color: rgba(245,240,232,.65);
  padding-block: clamp(48px, 6vw, 80px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--gap);
  margin-bottom: 3rem;
}

.footer-brand .logo { color: var(--creme); font-size: 1.3rem; }
.footer-brand p { font-size: .875rem; margin-top: 1rem; color: rgba(245,240,232,.5); max-width: 32ch; }

.footer-col h4 {
  font-family: var(--sans);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: 1.25rem;
}

.footer-col ul { display: flex; flex-direction: column; gap: .6rem; }
.footer-col ul a { font-size: .875rem; color: rgba(245,240,232,.55); transition: color var(--transition); }
.footer-col ul a:hover { color: var(--creme); }

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(245,240,232,.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .78rem;
  color: rgba(245,240,232,.35);
}

.footer-bottom a { color: rgba(245,240,232,.55); }
.footer-bottom a:hover { color: var(--or); }

/* ----- Chatbot ------------------------------------------ */
.chatbot-trigger {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  background: var(--vert-foret);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--ombre-lg);
  z-index: 200;
  transition: transform var(--transition), background var(--transition);
  border: none;
}
.chatbot-trigger:hover { transform: scale(1.1); background: var(--vert-moyen); }
.chatbot-trigger svg { width: 24px; height: 24px; stroke: var(--creme); }
.chatbot-trigger .badge {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 14px;
  height: 14px;
  background: var(--or);
  border-radius: 50%;
  border: 2px solid var(--creme);
}

.chatbot-window {
  position: fixed;
  bottom: 5.5rem;
  right: 2rem;
  width: 360px;
  max-height: 520px;
  background: var(--blanc);
  border-radius: var(--rayon-lg);
  box-shadow: var(--ombre-lg);
  z-index: 200;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(.9) translateY(20px);
  opacity: 0;
  pointer-events: none;
  transition: transform .25s cubic-bezier(.34,1.56,.64,1), opacity .2s;
}

.chatbot-window.open {
  transform: scale(1) translateY(0);
  opacity: 1;
  pointer-events: all;
}

.chatbot-header {
  background: var(--vert-foret);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}

.chatbot-avatar {
  width: 36px;
  height: 36px;
  background: var(--or);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--vert-foret);
  font-weight: 700;
}

.chatbot-header-info { flex: 1; }
.chatbot-header-info strong { display: block; color: var(--creme); font-size: .9rem; }
.chatbot-header-info span { font-size: .72rem; color: rgba(245,240,232,.6); }
.chatbot-close { color: rgba(245,240,232,.6); transition: color var(--transition); padding: 4px; }
.chatbot-close:hover { color: var(--creme); }
.chatbot-close svg { width: 18px; height: 18px; }

.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  scroll-behavior: smooth;
}

.chatbot-messages::-webkit-scrollbar { width: 4px; }
.chatbot-messages::-webkit-scrollbar-track { background: transparent; }
.chatbot-messages::-webkit-scrollbar-thumb { background: var(--creme-sombre); border-radius: 2px; }

.msg {
  max-width: 80%;
  padding: .75rem 1rem;
  border-radius: 16px;
  font-size: .875rem;
  line-height: 1.5;
}

.msg-bot {
  background: var(--creme);
  color: var(--texte-sombre);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
}

.msg-user {
  background: var(--vert-foret);
  color: var(--creme);
  border-bottom-right-radius: 4px;
  align-self: flex-end;
  max-width: none;
}

.chatbot-suggestions {
  padding: .75rem 1rem;
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--creme-sombre);
}

.suggestion-chip {
  padding: .4rem .9rem;
  background: var(--creme);
  border: 1px solid var(--creme-sombre);
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 500;
  color: var(--texte-sombre);
  transition: background var(--transition), border-color var(--transition);
}
.suggestion-chip:hover {
  background: rgba(201,168,76,.1);
  border-color: var(--or);
}

.chatbot-input-row {
  display: flex;
  gap: .5rem;
  padding: .75rem 1rem 1rem;
  border-top: 1px solid var(--creme-sombre);
}

.chatbot-input {
  flex: 1;
  padding: .6rem .9rem;
  background: var(--creme);
  border: 1px solid var(--creme-sombre);
  border-radius: 24px;
  font-family: var(--sans);
  font-size: .875rem;
  outline: none;
  color: var(--texte-sombre);
  transition: border-color var(--transition);
}
.chatbot-input:focus { border-color: var(--vert-moyen); }
.chatbot-input::placeholder { color: var(--texte-clair); }

.chatbot-send {
  width: 36px;
  height: 36px;
  background: var(--vert-foret);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition);
}
.chatbot-send:hover { background: var(--vert-moyen); }
.chatbot-send svg { width: 16px; height: 16px; stroke: var(--creme); }

/* ----- Utilitaires -------------------------------------- */
.text-center { text-align: center; }
.text-center p { margin-inline: auto; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-4 { margin-bottom: 2rem; }

.tag {
  display: inline-block;
  padding: .3rem .8rem;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.tag-vert { background: rgba(26,58,42,.1); color: var(--vert-foret); }

/* Animations d'entrée */
[data-anim] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
[data-anim].visible {
  opacity: 1;
  transform: translateY(0);
}
[data-anim][data-delay="1"] { transition-delay: .1s; }
[data-anim][data-delay="2"] { transition-delay: .2s; }
[data-anim][data-delay="3"] { transition-delay: .3s; }
[data-anim][data-delay="4"] { transition-delay: .4s; }
[data-anim][data-delay="5"] { transition-delay: .5s; }

/* ----- Responsive --------------------------------------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .chiffres-grid { grid-template-columns: repeat(2, 1fr); }
  .newsletter-inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    background: var(--creme);
    z-index: 99;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    font-size: 1.5rem;
  }
  .nav-burger { display: flex; }
  .nav-cta { display: none; }

  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .hero-content { padding-right: 0; }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .approche-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: .75rem; text-align: center; }

  .chatbot-window { right: 1rem; left: 1rem; width: auto; }
  .chatbot-trigger { right: 1rem; bottom: 1.5rem; }

  .approche-badge { right: 0; }
}

@media (max-width: 480px) {
  .chiffres-grid { grid-template-columns: 1fr 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; justify-content: center; }
}