/* =====================================================
   AgroTech ITA — Feuille de style principale
   Version finale avec toutes les améliorations UI/UX
   Palette : Vert forêt (#1C3A2A) · Crème (#F5F0E8) · Or terreux (#B8914A)
   Typo    : Cormorant Garamond (titres) + DM Sans (corps)
===================================================== */

/* ─────────────────────────────────────────────────
   1. VARIABLES & RESET
───────────────────────────────────────────────── */
:root {
  /* Couleurs */
  --c-forest:   #1C3A2A;
  --c-forest-d: #122519;
  --c-forest-l: #2A5240;
  --c-sage:     #4A7C59;
  --c-gold:     #B8914A;
  --c-gold-l:   #D4AA6A;
  --c-cream:    #F5F0E8;
  --c-cream-d:  #EDE6D6;
  --c-white:    #FAFAF7;
  --c-text:     #2C2C2C;
  --c-text-s:   #6B6B5E;
  --c-border:   #D6CEC0;
  --c-error:    #C0392B;

  /* Typographie */
  --f-display: 'Cormorant Garamond', Georgia, serif;
  --f-body:    'DM Sans', system-ui, sans-serif;

  /* Espacements */
  --sp-sm:  1rem;
  --sp-md:  1.5rem;
  --sp-lg:  2.5rem;
  --sp-xl:  4rem;
  --sp-2xl: 6rem;

  /* Mise en page */
  --max-w:    1200px;
  --header-h: 72px;

  /* Rayons */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 16px;

  /* Ombres */
  --shadow-card:   0 2px 20px rgba(28, 58, 42, .08);
  --shadow-card-h: 0 8px 40px rgba(28, 58, 42, .16);

  /* Transitions */
  --t-fast: .18s ease;
  --t-med:  .32s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--f-body);
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-cream);
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: var(--f-body); cursor: pointer; border: none; background: none; }

/* Utilitaires */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--sp-md);
}
@media (min-width: 768px) { .container { padding-inline: var(--sp-lg); } }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}
/* Logo PNG — version claire pour fonds sombres */
.logo img {
  filter: brightness(0) invert(1) sepia(1) saturate(2) hue-rotate(5deg);
}
/* ─────────────────────────────────────────────────
   2. HEADER
───────────────────────────────────────────────── */
.header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(28, 58, 42, .96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(184, 145, 74, .2);
  transition: box-shadow var(--t-med);
}
.header.scrolled { box-shadow: 0 4px 24px rgba(18, 37, 25, .4); }

.header__inner {
  max-width: var(--max-w); margin-inline: auto;
  padding-inline: var(--sp-md); height: 100%;
  display: flex; align-items: center;
  justify-content: space-between; gap: var(--sp-sm);
}
@media (min-width: 768px) { .header__inner { padding-inline: var(--sp-lg); } }

/* Logo */
.logo { display: flex; align-items: center; gap: .6rem; }

.logo__mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: var(--c-gold); color: var(--c-forest);
  font-family: var(--f-display); font-weight: 700;
  font-size: .9rem; letter-spacing: .03em;
  border-radius: var(--r-sm); flex-shrink: 0;
}
.logo__name {
  font-family: var(--f-display); font-size: 1.3rem;
  font-weight: 400; color: var(--c-white); letter-spacing: .02em;
}
.logo__name strong { font-weight: 700; color: var(--c-gold-l); }

/* Navigation desktop */
/* ── Navigation : mobile-first ── */

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  position: relative;
  z-index: 210;
  cursor: pointer;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--c-white);
  transition: transform var(--t-med), opacity var(--t-fast);
  transform-origin: center;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav { display: none; }
.nav__list { display: flex; gap: var(--sp-lg); }

.nav__link {
  font-size: .8rem; font-weight: 500;
  letter-spacing: .07em; text-transform: uppercase;
  color: rgba(250, 250, 247, .65);
  padding: .35em .75em; border-radius: 20px;
  transition: color var(--t-fast), background var(--t-fast);
}
.nav__link:hover { color: var(--c-white); background: rgba(250, 250, 247, .08); }
.nav__link.active { color: var(--c-forest); background: var(--c-gold); font-weight: 600; }

@media (min-width: 768px) {
  .nav { display: block; }
  .nav-toggle { display: none !important; }
}

.nav.nav--open {
  display: flex;
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background: var(--c-forest-d);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 200;
  overflow: hidden;
  overscroll-behavior: contain;
}
.nav.nav--open .nav__list {
  flex-direction: column;
  align-items: center;
  gap: var(--sp-lg);
}
.nav.nav--open .nav__link {
  font-size: 1.5rem;
  color: var(--c-white);
  background: none;
  padding: .3em 0;
}
.nav.nav--open .nav__link.active { color: var(--c-gold-l); }

/* Lien actif — pill colorée bien visible */
.nav__link {
  font-size: .8rem; font-weight: 500;
  letter-spacing: .07em; text-transform: uppercase;
  color: rgba(250, 250, 247, .65);
  padding: .35em .75em; border-radius: 20px;
  transition: color var(--t-fast), background var(--t-fast);
}
.nav__link:hover { color: var(--c-white); background: rgba(250, 250, 247, .08); }
.nav__link.active { color: var(--c-forest); background: var(--c-gold); font-weight: 600; }

@media (min-width: 768px) { .nav { display: block; } .nav-toggle { display: none; } }

/* Hamburger mobile */
.nav-toggle { display: flex; flex-direction: column; gap: 5px; padding: 8px; z-index: 110; }
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--c-white);
  transition: transform var(--t-med), opacity var(--t-fast);
  transform-origin: center;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Menu mobile ouvert */
.nav.nav--open {
  display: flex; position: fixed; inset: 0;
  background: var(--c-forest-d);
  flex-direction: column; align-items: center; justify-content: center;
  z-index: 105;
}
.nav.nav--open .nav__list { flex-direction: column; align-items: center; gap: var(--sp-lg); }
.nav.nav--open .nav__link { font-size: 1.5rem; color: var(--c-white); background: none; padding: .2em 0; }
.nav.nav--open .nav__link.active { color: var(--c-gold-l); background: none; }

/* ─────────────────────────────────────────────────
   3. HERO
───────────────────────────────────────────────── */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center;
  overflow: hidden; background: var(--c-forest);
  padding-top: var(--header-h);
}

.hero__visual {
  position: absolute; inset: 0; z-index: 0;
  /* Fallback CSS si les deux CDN échouent :
     photo aérienne de rizières en terrasse via CSS background */
  background-image: url('https://picsum.photos/seed/agri/1920/1080');
  background-size: cover;
  background-position: center;
}

.hero__bg-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover; object-position: center ; z-index: 0;
}

/* Grille décorative animée */
.grid-anim {
  position: absolute; inset: 0; z-index: 1;
  background-image:
    linear-gradient(rgba(184, 145, 74, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 145, 74, .05) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridDrift 20s linear infinite;
}
@keyframes gridDrift { from { transform: translate(0,0); } to { transform: translate(60px,60px); } }

/* Overlay gradient lisibilité */
.hero::after {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to right,
    rgba(12,28,18,.9) 0%,
    rgba(12,28,18,.6) 55%,
    rgba(12,28,18,.15) 100%
  );
}
@media (max-width: 767px) { .hero::after { background: rgba(12, 28, 18, .8); } }

/* Contenu */
.hero__content {
  position: relative; z-index: 2;
  max-width: 700px;
  padding: var(--sp-xl) var(--sp-md);
  animation: heroFadeIn 1s .32s both;
}
@media (min-width: 768px) { .hero__content { padding: var(--sp-xl) var(--sp-lg); } }

@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero__tag {
  display: inline-block; font-size: .72rem; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--c-gold-l); border: 1px solid rgba(184,145,74,.4);
  padding: .3em .9em; border-radius: 2px;
  margin-bottom: var(--sp-md);
  animation: heroFadeIn 1s .15s both;
}

.hero__title {
  font-family: var(--f-display);
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  font-weight: 600; line-height: 1.08;
  color: var(--c-white); margin-bottom: var(--sp-md);
  animation: heroFadeIn 1s .3s both;
}
.hero__title em { font-style: italic; color: var(--c-gold-l); }

.hero__sub {
  font-size: clamp(.95rem, 1.5vw, 1.1rem);
  color: rgba(250, 250, 247, .78);
  max-width: 520px; margin-bottom: var(--sp-md);
  font-weight: 300; animation: heroFadeIn 1s .45s both;
}

/* Bandeau de confiance */
.hero__trust {
  display: flex; align-items: center; gap: 1.4rem;
  flex-wrap: wrap; margin-top: var(--sp-md);
  animation: heroFadeIn 1s .65s both;
}
.hero__trust-divider { width: 1px; height: 14px; background: rgba(250,250,247,.2); flex-shrink: 0; }
.hero__trust-item {
  font-size: .7rem; letter-spacing: .09em;
  text-transform: uppercase; color: rgba(250,250,247,.45); white-space: nowrap;
}

/* Indicateur défilement */
.hero__scroll {
  position: absolute; bottom: var(--sp-lg); left: var(--sp-md);
  z-index: 2; display: flex; flex-direction: column;
  align-items: center; gap: .5rem;
  animation: heroFadeIn 1s .8s both;
}
@media (min-width: 768px) { .hero__scroll { left: var(--sp-lg); } }

.hero__scroll-line {
  display: block; width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--c-gold), transparent);
  animation: scrollPulse 2s infinite;
}
@keyframes scrollPulse { 0%, 100% { opacity: .4; } 50% { opacity: 1; } }

.hero__scroll-text {
  font-size: .65rem; letter-spacing: .16em; text-transform: uppercase;
  color: rgba(250,250,247,.45); writing-mode: vertical-rl;
}

/* ─────────────────────────────────────────────────
   4. BOUTONS
───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .85em 2em; font-family: var(--f-body);
  font-size: .875rem; font-weight: 500;
  letter-spacing: .06em; text-transform: uppercase;
  border-radius: var(--r-sm); transition: all var(--t-med);
  cursor: pointer; white-space: nowrap;
}
.btn--primary { background: var(--c-gold); color: var(--c-forest-d); border: 2px solid var(--c-gold); }
.btn--primary:hover {
  background: var(--c-gold-l); border-color: var(--c-gold-l);
  transform: translateY(-2px); box-shadow: 0 8px 24px rgba(184,145,74,.35);
}
.btn__arrow { transition: transform var(--t-fast); display: inline-block; }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ─────────────────────────────────────────────────
   5. SECTION HEADERS
───────────────────────────────────────────────── */
.section-header { text-align: center; margin-bottom: var(--sp-xl); }
.section-tag {
  display: inline-block; font-size: .72rem; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--c-sage); margin-bottom: var(--sp-sm);
}
.section-title {
  font-family: var(--f-display);
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 600;
  color: var(--c-forest); line-height: 1.15; margin-bottom: var(--sp-sm);
}
.section-intro { font-size: 1.05rem; color: var(--c-text-s); max-width: 560px; margin-inline: auto; }

/* ─────────────────────────────────────────────────
   6. SERVICES
───────────────────────────────────────────────── */
.services { padding-block: var(--sp-2xl); background: var(--c-cream); }
.services__grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 640px)  { .services__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .services__grid { grid-template-columns: repeat(3, 1fr); } }

/* Carte standard */
.service-card {
  background: var(--c-white); border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid var(--c-border); box-shadow: var(--shadow-card);
  transition: box-shadow var(--t-med), transform var(--t-med);
  display: flex; flex-direction: column;
}
.service-card:hover { box-shadow: var(--shadow-card-h); transform: translateY(-5px); }

/* Carte mise en avant — service phare */
.service-card--featured { background: var(--c-forest); border-color: var(--c-forest); }
.service-card--featured:hover { box-shadow: 0 12px 48px rgba(28,58,42,.35); }
.service-card--featured .service-card__num  { color: var(--c-gold-l); }
.service-card--featured .service-card__title { color: var(--c-white); }
.service-card--featured .service-card__desc  { color: rgba(250,250,247,.7); }
.service-card--featured .service-card__list  { border-top-color: rgba(250,250,247,.12); }
.service-card--featured .service-card__list li { color: rgba(250,250,247,.6); }
.service-card--featured .service-card__list li::before { color: var(--c-gold); }
.service-card--featured .service-card__cta  { color: var(--c-gold-l); border-color: rgba(184,145,74,.3); }
.service-card--featured .service-card__cta:hover { background: rgba(184,145,74,.1); color: var(--c-gold-l); }

/* Badge "Service phare" */
.service-card__badge {
  position: absolute; top: 1rem; right: 1rem;
  background: var(--c-gold); color: var(--c-forest-d);
  font-size: .6rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  padding: .25em .7em; border-radius: 2px; z-index: 2;
}

/* Media */
.service-card__media { height: 200px; overflow: hidden; background: var(--c-cream-d); position: relative; flex-shrink: 0; }
.service-card__media img {
  width: 100%; height: 200px;
  object-fit: cover; object-position: center;
  object-position: center top;
  transition: transform .5s ease; display: block;
}
.service-card:hover .service-card__media img { transform: scale(1.04); }

/* Corps — hiérarchie typographique à 3 niveaux */
.service-card__body { padding: 1.6rem 1.8rem 1.4rem; display: flex; flex-direction: column; gap: .7rem; flex: 1; }

.service-card__num   { font-family: var(--f-display); font-size: .75rem; font-weight: 600; letter-spacing: .14em; color: var(--c-gold); display: block; }
.service-card__title { font-family: var(--f-display); font-size: 1.4rem; font-weight: 600; color: var(--c-forest); line-height: 1.2; }
.service-card__desc  { font-size: .88rem; color: var(--c-text-s); line-height: 1.75; flex: 1; }

.service-card__list  { padding-top: .9rem; border-top: 1px solid var(--c-border); display: flex; flex-direction: column; gap: .35rem; }
.service-card__list li { font-size: .78rem; color: var(--c-text-s); padding-left: 1em; position: relative; }
.service-card__list li::before { content: '–'; position: absolute; left: 0; color: var(--c-gold); }

/* CTA sur chaque carte → pré-remplit le formulaire */
.service-card__cta {
  display: inline-flex; align-items: center; gap: .4rem;
  margin-top: .8rem; padding: .5em 1em;
  font-size: .75rem; font-weight: 500;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--c-forest);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm); align-self: flex-start;
  transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
}
.service-card__cta:hover { background: var(--c-cream-d); border-color: var(--c-forest); transform: translateX(3px); }
.service-card__cta-arrow { transition: transform var(--t-fast); }
.service-card__cta:hover .service-card__cta-arrow { transform: translateX(3px); }

/* ─────────────────────────────────────────────────
   7. À PROPOS
───────────────────────────────────────────────── */
.about-band { background: var(--c-forest); padding-block: var(--sp-2xl); }
.about-band__inner { display: grid; grid-template-columns: 1fr; gap: var(--sp-xl); align-items: center; }
@media (min-width: 768px) { .about-band__inner { grid-template-columns: 1fr 1fr; } }

.about-band__text .section-tag { color: var(--c-gold-l); }
.about-band__title {
  font-family: var(--f-display); font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 600; color: var(--c-white); line-height: 1.15; margin-bottom: var(--sp-md);
}
.about-band__text p { color: rgba(250,250,247,.75); font-size: .97rem; line-height: 1.8; }

.about-band__visual { border-radius: var(--r-lg); overflow: hidden; aspect-ratio: 4/3; background: var(--c-forest-l); }
.about-band__visual img { width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; transition: transform .5s ease; }
.about-band__visual:hover img { transform: scale(1.03); }

/* ─────────────────────────────────────────────────
   8. CONTACT — DESIGN PREMIUM
───────────────────────────────────────────────── */
.contact { padding-block: 0; background: var(--c-forest-d); position: relative; overflow: hidden; }
.contact::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(184,145,74,.1) 1px, transparent 1px);
  background-size: 28px 28px; z-index: 0;
}
.contact__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr; min-height: 680px; }
@media (min-width: 900px) { .contact__inner { grid-template-columns: 420px 1fr; } }

/* Panneau gauche */
.contact__panel {
  background: linear-gradient(160deg, var(--c-forest-l) 0%, var(--c-forest-d) 100%);
  padding: 4rem 3rem; display: flex; flex-direction: column;
  justify-content: space-between; position: relative; overflow: hidden;
}
.contact__panel::after {
  content: ''; position: absolute;
  width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle, rgba(184,145,74,.18) 0%, transparent 70%);
  bottom: -80px; left: -80px; pointer-events: none;
}
.contact__panel-tag { display: inline-block; font-size: .68rem; font-weight: 500; letter-spacing: .18em; text-transform: uppercase; color: var(--c-gold); margin-bottom: 1.2rem; }
.contact__panel-title { font-family: var(--f-display); font-size: clamp(2rem, 3.5vw, 2.8rem); font-weight: 600; color: var(--c-white); line-height: 1.12; margin-bottom: 1.5rem; }
.contact__panel-title em { font-style: italic; color: var(--c-gold-l); }
.contact__panel-desc { font-size: .92rem; color: rgba(250,250,247,.62); line-height: 1.8; max-width: 300px; }

.contact__info-list { margin-top: 3rem; display: flex; flex-direction: column; gap: 1.4rem; }
.contact__info-item { display: flex; flex-direction: column; gap: .2rem; }
.contact__info-label { font-size: .65rem; letter-spacing: .16em; text-transform: uppercase; color: var(--c-gold); font-weight: 500; }
.contact__info-value { font-size: .9rem; color: rgba(250,250,247,.8); }

.contact__panel-line { position: absolute; top: 3rem; bottom: 3rem; right: 0; width: 1px; background: linear-gradient(to bottom, transparent, rgba(184,145,74,.4), transparent); }

/* Zone formulaire */
.contact__form-wrap { background: var(--c-cream); padding: 4rem 3rem; display: flex; flex-direction: column; justify-content: center; }
@media (max-width: 899px) {
  .contact__panel { padding: 3rem 2rem; }
  .contact__panel-line { display: none; }
  .contact__form-wrap { padding: 3rem 2rem; }
}

.contact-form { width: 100%; max-width: 560px; }

.form-heading { font-family: var(--f-display); font-size: 1.6rem; font-weight: 600; color: var(--c-forest); margin-bottom: 2.5rem; line-height: 1.2; }
.form-heading span { display: block; font-size: .72rem; font-weight: 400; font-style: normal; letter-spacing: .12em; text-transform: uppercase; color: var(--c-sage); margin-bottom: .5rem; font-family: var(--f-body); }

/* Étapes de progression */
.form-steps { display: flex; align-items: center; gap: 0; margin-bottom: 2.2rem; }
.form-step {
  display: flex; align-items: center; gap: .5rem;
  font-size: .68rem; font-weight: 500; letter-spacing: .07em; text-transform: uppercase;
  color: var(--c-text-s); flex: 1; position: relative;
}
.form-step:not(:last-child)::after { content: ''; display: block; flex: 1; height: 1px; background: var(--c-border); margin-left: .5rem; }
.form-step__dot {
  width: 22px; height: 22px; border-radius: 50%;
  border: 1.5px solid var(--c-border); background: var(--c-white);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: .65rem; font-weight: 700; color: var(--c-text-s);
  flex-shrink: 0; transition: all .25s ease;
}
.form-step.done   .form-step__dot { background: var(--c-sage);   border-color: var(--c-sage);   color: var(--c-white); }
.form-step.active .form-step__dot { background: var(--c-forest); border-color: var(--c-forest); color: var(--c-white); }
.form-step.active { color: var(--c-forest); font-weight: 600; }
.form-step.done   { color: var(--c-sage); }

.form-row { display: grid; grid-template-columns: 1fr; gap: 0 1.5rem; }
@media (min-width: 600px) { .form-row { grid-template-columns: 1fr 1fr; } }

/* Champ avec label flottant */
.form-field { position: relative; margin-bottom: 1.8rem; }
.form-field__input {
  width: 100%; padding: 1.1rem 0 .55rem;
  font-family: var(--f-body); font-size: 1rem; color: var(--c-text);
  background: transparent; border: none;
  border-bottom: 1.5px solid var(--c-border);
  outline: none; transition: border-color .25s ease;
  -webkit-appearance: none; border-radius: 0;
}
.form-field__input::placeholder { color: transparent; }
.form-field__label { position: absolute; left: 0; top: 1.1rem; font-size: .92rem; color: var(--c-text-s); pointer-events: none; transition: top .22s ease, font-size .22s ease, color .22s ease; }

/* Label flottant */
.form-field__input:focus ~ .form-field__label,
.form-field__input:not(:placeholder-shown) ~ .form-field__label {
  top: -.1rem; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--c-sage);
}

/* Barre animée */
.form-field__bar { position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--c-forest); transition: width .3s ease; }
.form-field:focus-within .form-field__bar { width: 100%; }

/* États invalides */
.form-field__input.invalid { border-bottom-color: var(--c-error); }
.form-field__input.invalid ~ .form-field__label { color: var(--c-error); }
.form-field__input.invalid ~ .form-field__bar { background: var(--c-error); width: 100%; }

.form-field__error { position: absolute; bottom: -1.2rem; left: 0; font-size: .72rem; color: var(--c-error); display: block; min-height: 1em; }
.form-field__input--textarea { resize: none; min-height: 100px; padding-top: 1.3rem; }
.form-field__req { color: var(--c-gold); margin-left: 2px; }

/* Pied du formulaire */
.form-actions { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--c-border); }
.form-note { font-size: .74rem; color: var(--c-text-s); }

/* Bouton envoi premium — effet balayage doré */
.btn-send {
  display: inline-flex; align-items: center; gap: .8rem;
  padding: 1em 2.2em; background: var(--c-forest); color: var(--c-white);
  font-family: var(--f-body); font-size: .82rem; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase;
  border: none; border-radius: 2px; cursor: pointer;
  position: relative; overflow: hidden;
  transition: color .25s ease, box-shadow .25s ease, transform .18s ease;
}
.btn-send::before {
  content: ''; position: absolute; inset: 0;
  background: var(--c-gold); transform: translateX(-101%);
  transition: transform .35s cubic-bezier(.4,0,.2,1); z-index: 0;
}
.btn-send:hover::before { transform: translateX(0); }
.btn-send:hover { color: var(--c-forest-d); box-shadow: 0 6px 28px rgba(184,145,74,.4); transform: translateY(-2px); }
.btn-send:active { transform: translateY(0); }
.btn-send:disabled { opacity: .6; cursor: not-allowed; }
.btn-send__text, .btn-send__arrow { position: relative; z-index: 1; }
.btn-send__arrow { display: inline-block; transition: transform .25s ease; font-size: 1.1em; }
.btn-send:hover .btn-send__arrow { transform: translateX(5px); }

/* Message de succès */
.form-success {
  margin-top: 1.5rem; padding: 1.2rem 1.5rem;
  background: var(--c-forest); border-left: 3px solid var(--c-gold);
  color: var(--c-white); font-size: .9rem;
  animation: slideUp .4s ease;
  border-radius: 0 var(--r-md) var(--r-md) 0;
}
@keyframes slideUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* ─────────────────────────────────────────────────
   9. FOOTER
───────────────────────────────────────────────── */
.footer {
  background: var(--c-forest-d); color: rgba(250,250,247,.72);
  padding-block: var(--sp-xl) var(--sp-lg);
  border-top: 1px solid rgba(184,145,74,.15);
}
.footer__inner { display: grid; grid-template-columns: 1fr; gap: var(--sp-xl); margin-bottom: var(--sp-xl); }
@media (min-width: 768px) { .footer__inner { grid-template-columns: 2fr 1fr 1fr; gap: var(--sp-lg); } }

.logo__mark--light { background: rgba(184,145,74,.2); color: var(--c-gold-l); }
.logo__name--light { color: var(--c-cream); }
.logo__name--light strong { color: var(--c-gold-l); }
.footer__brand { display: flex; flex-direction: column; gap: var(--sp-sm); }
.footer__tagline { font-size: .82rem; line-height: 1.7; color: rgba(250,250,247,.5); }

.footer__nav-title { font-size: .72rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; color: var(--c-gold-l); margin-bottom: var(--sp-sm); }
.footer__nav ul li + li { margin-top: .6rem; }
.footer__nav a, .footer__contact p { font-size: .88rem; color: rgba(250,250,247,.6); transition: color var(--t-fast); }
.footer__nav a:hover { color: var(--c-white); }
.footer__contact p + p { margin-top: .5rem; }

.footer__bottom {
  border-top: 1px solid rgba(250,250,247,.08); padding-top: var(--sp-md);
  display: flex; flex-direction: column; gap: .4rem;
  font-size: .78rem; color: rgba(250,250,247,.35);
}
@media (min-width: 600px) { .footer__bottom { flex-direction: row; justify-content: space-between; align-items: center; } }

/* ─────────────────────────────────────────────────
   10. BOUTON WHATSAPP FIXE — apparition différée
───────────────────────────────────────────────── */
.whatsapp-btn {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 90;
  display: flex; align-items: center; gap: .6rem;
  background: #25D366; color: #fff;
  padding: .75em 1.25em .75em 1em; border-radius: 50px;
  font-size: .82rem; font-weight: 500; letter-spacing: .04em;
  box-shadow: 0 4px 20px rgba(37,211,102,.45);
  text-decoration: none;
  /* Caché par défaut — JS l'affiche après 3s ou au premier scroll */
  opacity: 0; transform: translateY(16px) scale(.92); pointer-events: none;
  transition: opacity .4s ease, transform .4s ease, background var(--t-fast), box-shadow var(--t-fast);
}
.whatsapp-btn.visible { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.whatsapp-btn:hover { background: #1ebe5b; transform: translateY(-3px) scale(1.03); box-shadow: 0 8px 28px rgba(37,211,102,.55); }
.whatsapp-btn:active { transform: translateY(0) scale(.98); }
.whatsapp-btn__icon { width: 20px; height: 20px; flex-shrink: 0; }

@media (max-width: 480px) {
  .whatsapp-btn__label { display: none; }
  .whatsapp-btn { padding: .85em; border-radius: 50%; }
  .whatsapp-btn__icon { width: 24px; height: 24px; }
}

/* ─────────────────────────────────────────────────
   11. RÉVÉLATION AU DÉFILEMENT
───────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal--delay-1 { transition-delay: .12s; }
.reveal--delay-2 { transition-delay: .24s; }
.reveal--delay-3 { transition-delay: .36s; }