/* Easy Instruments - feuille de style du site vitrine.
   Charte tirée de la vidéo de marque : dégradé cyan -> violet sur fond CLAIR.
   Design moderne, cartes animées au survol. Tiret court partout, jamais de cadratin. */

:root {
  /* Couleurs de marque (issues du logo animé) */
  --cyan: #06B6D4;
  --cyan-clair: #22C3EE;
  --violet: #7C3AED;
  --violet-clair: #A855F7;
  --degrade: linear-gradient(120deg, #06B6D4 0%, #7C3AED 100%);
  --degrade-doux: linear-gradient(120deg, rgba(6,182,212,.12), rgba(124,58,237,.12));

  /* Neutres clairs */
  --encre: #0F1B2D;
  --texte: #2C3A4E;
  --doux: #64748B;
  --fond: #F7F9FC;
  --fond-2: #FFFFFF;
  --surface: #FFFFFF;
  --trait: #E5EAF2;
  --accent: #7C3AED;         /* couleur unie pour liens et focus */
  --accent-doux: #F0ECFE;

  --ombre: 0 1px 2px rgba(15,27,45,.05), 0 12px 30px -14px rgba(15,27,45,.16);
  --ombre-forte: 0 20px 48px -18px rgba(124,58,237,.40), 0 8px 20px -12px rgba(6,182,212,.30);
  --rayon: 18px;
  --rayon-lg: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--fond);
  color: var(--texte);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
img { max-width: 100%; }
.enveloppe { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* Petit trait dégradé réutilisable */
.point {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--degrade); flex: none;
  box-shadow: 0 0 0 4px rgba(124,58,237,.12);
}

/* ---------- En-tête / navigation ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247,249,252,.85);
  backdrop-filter: saturate(1.5) blur(10px);
  border-bottom: 1px solid var(--trait);
}
.topbar .enveloppe {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 20px;
}
.logo-site { display: inline-flex; align-items: center; text-decoration: none; }
.logo-site img { height: 42px; width: auto; display: block; }

.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  text-decoration: none; color: var(--texte);
  padding: 9px 15px; border-radius: 999px;
  font-weight: 550; font-size: .95rem;
  transition: background .2s ease, color .2s ease;
}
.nav a:hover { background: var(--accent-doux); color: var(--accent); }
.nav a.actif { color: var(--accent); background: var(--accent-doux); }
.nav a.bouton {
  color: #fff; background: var(--degrade);
  box-shadow: 0 8px 20px -10px rgba(124,58,237,.7);
}
.nav a.bouton:hover { color: #fff; transform: translateY(-1px); filter: brightness(1.05); }

/* Menu mobile (bascule par case à cocher, sans JS) */
.menu-burger { display: none; width: 42px; height: 42px; border: 1px solid var(--trait);
  border-radius: 12px; background: var(--surface); cursor: pointer;
  flex-direction: column; align-items: center; justify-content: center; gap: 4px; }
.menu-burger span { width: 20px; height: 2px; background: var(--encre); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
.menu-bascule:checked ~ .menu-burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-bascule:checked ~ .menu-burger span:nth-child(2) { opacity: 0; }
.menu-bascule:checked ~ .menu-burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Sections ---------- */
main { display: block; }
.section { padding: 72px 0; position: relative; }
.section + .section { padding-top: 0; }
.chapitre { max-width: 66ch; }
.oeil {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: .74rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--violet); margin: 0 0 16px;
}
h1, h2, h3 { color: var(--encre); letter-spacing: -.022em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.25rem); line-height: 1.06; margin: 0 0 18px; }
h2 { font-size: clamp(1.55rem, 3.2vw, 2.15rem); line-height: 1.12; margin: 0 0 16px; }
h3 { font-size: 1.22rem; margin: 0 0 8px; }
p { margin: 0 0 14px; }
.plomb { font-size: 1.16rem; color: var(--texte); }
.degrade-texte {
  background: var(--degrade); -webkit-background-clip: text;
  background-clip: text; color: transparent;
}

/* ---------- Héros ---------- */
.hero { padding: 92px 0 52px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto -10%; height: 520px; z-index: 0;
  background:
    radial-gradient(45% 60% at 18% 20%, rgba(6,182,212,.16), transparent 70%),
    radial-gradient(50% 60% at 82% 10%, rgba(124,58,237,.18), transparent 70%);
  pointer-events: none;
}
.hero .enveloppe { position: relative; z-index: 1; }
.hero .grille {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 52px; align-items: center;
}
.hero-visuel {
  border-radius: var(--rayon-lg); overflow: hidden;
  border: 1px solid rgba(124,58,237,.25);
  box-shadow: var(--ombre-forte);
  background: #0B1220;
  transform: translateZ(0);
}
.hero-visuel img { display: block; width: 100%; height: auto; }

/* ---------- Boutons ---------- */
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; }
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 22px; border-radius: 999px;
  text-decoration: none; font-weight: 650; font-size: .99rem;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease, border-color .18s ease;
}
.btn-plein {
  background: var(--degrade); color: #fff;
  box-shadow: 0 12px 26px -12px rgba(124,58,237,.65);
}
.btn-plein:hover { transform: translateY(-2px); box-shadow: 0 18px 34px -12px rgba(124,58,237,.8); filter: brightness(1.04); }
.btn-contour { background: var(--surface); color: var(--accent); border-color: var(--trait); }
.btn-contour:hover { transform: translateY(-2px); border-color: var(--violet); box-shadow: var(--ombre); }
.btn .fleche { transition: transform .18s ease; }
.btn:hover .fleche { transform: translateX(4px); }

/* ---------- Chiffres clés ---------- */
.faits { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.fait {
  background: var(--surface); border: 1px solid var(--trait);
  border-radius: 999px; padding: 9px 16px; font-size: .92rem; color: var(--texte);
  box-shadow: var(--ombre);
}
.fait b { color: var(--violet); }

/* ---------- Grilles de cartes ---------- */
.cartes { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); }
.carte {
  position: relative; isolation: isolate;
  background: var(--surface); border: 1px solid var(--trait);
  border-radius: var(--rayon); padding: 28px; box-shadow: var(--ombre);
  display: flex; flex-direction: column; gap: 10px;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
/* barre dégradée qui se révèle en haut de la carte au survol */
.carte::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: var(--degrade); border-radius: var(--rayon) var(--rayon) 0 0;
  transform: scaleX(0); transform-origin: left; opacity: 0;
  transition: transform .28s ease, opacity .28s ease;
}
.carte:hover { transform: translateY(-6px); box-shadow: var(--ombre-forte); border-color: rgba(124,58,237,.35); }
.carte:hover::before { transform: scaleX(1); opacity: 1; }
.carte h3 { margin: 0; }
.carte p { margin: 0; color: var(--texte); }

a.carte { text-decoration: none; color: inherit; }
.carte .enseigne {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: .72rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--doux);
}
.carte .lieu { font-size: .85rem; color: var(--doux); margin: -4px 0 0; }
.carte .action {
  margin-top: auto; padding-top: 6px;
  display: inline-flex; align-items: center; gap: 8px; font-weight: 650;
  color: var(--violet);
}
.carte .action .fleche { transition: transform .2s ease; }
a.carte:hover .action .fleche { transform: translateX(5px); }

/* icône ronde en tête de carte (modules / services) */
.carte .ico {
  width: 42px; height: 42px; border-radius: 12px; flex: none;
  display: grid; place-items: center; margin-bottom: 4px;
  background: var(--degrade-doux); color: var(--violet);
  border: 1px solid var(--trait);
  transition: transform .22s ease;
}
.carte:hover .ico { transform: scale(1.08) rotate(-3deg); }

/* ---------- Bandeau alterné ---------- */
.bande { background: var(--fond-2); border-block: 1px solid var(--trait); }

/* ---------- Méthode en 3 phases ---------- */
.phases { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.phase {
  position: relative; background: var(--surface); border: 1px solid var(--trait);
  border-radius: var(--rayon); padding: 28px; box-shadow: var(--ombre);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.phase:hover { transform: translateY(-6px); box-shadow: var(--ombre-forte); border-color: rgba(6,182,212,.35); }
.phase .num {
  display: inline-block; font-size: .82rem; font-weight: 800; letter-spacing: .08em;
  background: var(--degrade); -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 6px;
}
.phase ul { margin: 14px 0 0; padding-left: 18px; color: var(--doux); }
.phase li { margin-bottom: 3px; }

/* ---------- Deux compétences ---------- */
.roles { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); }
.role {
  padding: 26px; border: 1px solid var(--trait); border-radius: var(--rayon);
  background: var(--surface); box-shadow: var(--ombre);
  transition: transform .22s ease, box-shadow .22s ease;
}
.role:hover { transform: translateY(-4px); box-shadow: var(--ombre-forte); }
.role .titre { font-weight: 750; color: var(--encre); margin-bottom: 6px; }

/* ---------- Appel à l'action ---------- */
.cta {
  position: relative; overflow: hidden;
  border: 1px solid rgba(124,58,237,.2);
  border-radius: var(--rayon-lg); padding: 48px 40px; text-align: center;
  background:
    radial-gradient(60% 120% at 15% 0%, rgba(6,182,212,.14), transparent 60%),
    radial-gradient(60% 120% at 85% 100%, rgba(124,58,237,.16), transparent 60%),
    var(--surface);
  box-shadow: var(--ombre);
}
.cta h2 { margin-top: 0; }
.cta .actions { justify-content: center; }

/* ---------- Formulaire de contact ---------- */
.contact-grille { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: start; }
.form-carte {
  background: var(--surface); border: 1px solid var(--trait);
  border-radius: var(--rayon-lg); padding: 30px; box-shadow: var(--ombre);
}
.champ { margin-bottom: 16px; }
.champ label { display: block; font-weight: 650; color: var(--encre); margin-bottom: 6px; font-size: .95rem; }
.champ input, .champ textarea {
  width: 100%; padding: 13px 15px; font-size: 16px;
  font-family: inherit; color: var(--texte);
  background: var(--fond); border: 1px solid var(--trait); border-radius: 12px;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.champ input:focus, .champ textarea:focus {
  outline: none; border-color: var(--violet);
  box-shadow: 0 0 0 4px rgba(124,58,237,.14);
}
.champ textarea { min-height: 140px; resize: vertical; }
.pot { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.coord { display: flex; flex-direction: column; gap: 18px; }
.coord .bloc { display: flex; gap: 12px; align-items: flex-start; }
.coord .etiquette { font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--violet); font-weight: 700; }
.coord a { text-decoration: none; color: var(--texte); font-weight: 600; }
.coord a:hover { color: var(--violet); }
.alerte {
  border-radius: 12px; padding: 14px 16px; margin-bottom: 20px; font-size: .96rem;
  border: 1px solid transparent;
}
.alerte-ok { background: rgba(21,128,61,.10); border-color: #15803D; color: #15803D; }
.alerte-ko { background: rgba(220,38,38,.10); border-color: #dc2626; color: #dc2626; }

/* ---------- Pied de page ---------- */
.pied { margin-top: 24px; border-top: 1px solid var(--trait); background: var(--fond-2); color: var(--doux); }
.pied::before { content: ""; display: block; height: 3px; background: var(--degrade); }
.pied-haut { padding: 48px 24px 36px; display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; }
.pied-logo { height: 78px; width: auto; display: block; margin-bottom: 16px; }
.pied .sig { max-width: 40ch; margin: 0; }
.pied h4 { color: var(--encre); font-size: .98rem; margin: 0 0 14px; display: flex; align-items: center; gap: 9px; }
.pied a { color: var(--texte); text-decoration: none; }
.pied a:hover { color: var(--violet); }
.pied ul { list-style: none; margin: 0; padding: 0; }
.pied li { margin-bottom: 8px; }
.pied .bas {
  border-top: 1px solid var(--trait); padding: 18px 24px; font-size: .85rem; color: var(--doux);
  max-width: 1180px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}

/* ---------- Révélation au défilement (progressive) ---------- */
.reveal { opacity: 1; }
.js .reveal { opacity: 0; transform: translateY(18px); }
.js .reveal.vu { opacity: 1; transform: none; transition: opacity .6s ease, transform .6s ease; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1 !important; transform: none !important; }
  * { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero .grille { grid-template-columns: 1fr; gap: 30px; }
  .contact-grille { grid-template-columns: 1fr; gap: 30px; }
  .pied .enveloppe { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 760px) {
  .menu-burger { display: flex; }
  .nav {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--surface); border-bottom: 1px solid var(--trait);
    padding: 12px 16px; box-shadow: var(--ombre);
    max-height: 0; overflow: hidden; padding-top: 0; padding-bottom: 0;
    transition: max-height .25s ease, padding .25s ease;
  }
  .menu-bascule:checked ~ .nav { max-height: 320px; padding-top: 12px; padding-bottom: 12px; }
  .nav a { padding: 12px 14px; }
  .pied-haut { grid-template-columns: 1fr; gap: 26px; }
  .pied .bas { justify-content: center; text-align: center; }
}
@media (max-width: 640px) {
  .section { padding: 50px 0; }
  .hero { padding: 56px 0 30px; }
  .cta { padding: 32px 22px; }
}

/* ---------- Bloc contact du pied de page ---------- */
.pied-contact { border-bottom: 1px solid var(--trait); background: var(--fond-2); }
.pied-contact-in {
  padding: 30px 24px; display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.pied-contact-txt h3 { margin: 0 0 4px; font-size: 1.25rem; }
.pied-contact-txt p { margin: 0; color: var(--doux); }
.pied-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-contact {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 18px; border-radius: 999px; text-decoration: none;
  font-weight: 650; font-size: .96rem; border: 1px solid var(--trait);
  background: var(--surface); color: var(--encre);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, filter .18s ease;
}
.btn-contact:hover { transform: translateY(-2px); box-shadow: var(--ombre); }
.btn-contact.wa { background: #25D366; border-color: #25D366; color: #fff; }
.btn-contact.wa:hover { filter: brightness(1.05); box-shadow: 0 12px 24px -12px rgba(37,211,102,.7); }
.btn-contact.rappel { color: var(--violet); border-color: rgba(124,58,237,.35); }
.btn-contact.rappel:hover { border-color: var(--violet); }
.btn-contact.joindre { background: var(--degrade); color: #fff; border-color: transparent; box-shadow: 0 10px 22px -12px rgba(124,58,237,.7); }
.btn-contact.joindre:hover { filter: brightness(1.05); }

/* ---------- Barre légale ---------- */
.pied-legal { border-top: 1px solid var(--trait); }
.pied-legal-in {
  padding: 16px 24px; display: flex; align-items: center; justify-content: space-between;
  gap: 12px 20px; flex-wrap: wrap;
}
.legal-liens { display: flex; flex-wrap: wrap; gap: 6px 4px; align-items: center; }
.legal-liens a {
  color: var(--doux); text-decoration: none; font-size: .88rem;
  padding: 4px 10px; border-radius: 999px; transition: background .18s ease, color .18s ease;
}
.legal-liens a:hover { background: var(--accent-doux); color: var(--violet); }
.legal-copy { font-size: .84rem; color: var(--doux); }

/* ---------- Bandeau cookies ---------- */
.cookies {
  position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 80;
  background: var(--surface); border: 1px solid var(--trait); border-radius: 16px;
  box-shadow: var(--ombre-forte); max-width: 720px; margin: 0 auto;
}
.cookies-in { padding: 18px 20px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; justify-content: space-between; }
.cookies-in p { margin: 0; font-size: .92rem; color: var(--texte); flex: 1 1 320px; }
.cookies-actions { display: flex; gap: 10px; }
.btn-mini {
  padding: 9px 18px; border-radius: 999px; font-weight: 650; font-size: .9rem;
  cursor: pointer; border: 1px solid var(--trait); font-family: inherit;
  transition: transform .15s ease, filter .15s ease;
}
.btn-mini:hover { transform: translateY(-1px); }
.btn-mini.refuser { background: var(--surface); color: var(--texte); }
.btn-mini.accepter { background: var(--degrade); color: #fff; border-color: transparent; }

/* ---------- Pages légales ---------- */
.legal { max-width: 760px; }
.legal h1 { margin-bottom: 24px; }
.legal h2 { font-size: 1.15rem; margin: 30px 0 10px; }
.legal p { color: var(--texte); }
.legal a { color: var(--violet); }
.tbc {
  background: rgba(124,58,237,.10); color: var(--violet);
  border: 1px dashed rgba(124,58,237,.45); border-radius: 6px;
  padding: 1px 6px; font-size: .95em;
}

/* ---------- Responsive pied ---------- */
@media (max-width: 640px) {
  .pied-contact-in { flex-direction: column; align-items: flex-start; }
  .pied-actions { width: 100%; }
  .btn-contact { flex: 1 1 auto; justify-content: center; }
  .pied-legal-in { flex-direction: column; align-items: flex-start; }
}