/* Page d'accueil publique (decouvrir.html) — mêmes jetons que style.css. */
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body.page-vitrine { margin: 0; background: #fff; color: var(--body); font-family: var(--font-body); }
.vt-largeur { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.vt-etroit { max-width: 820px; }

/* En-tête collant */
.vt-haut { position: sticky; top: 0; z-index: 30; background: rgba(15,23,42,.92); -webkit-backdrop-filter: saturate(1.5) blur(14px); backdrop-filter: saturate(1.5) blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.08); padding-top: env(safe-area-inset-top); }
.vt-haut .vt-largeur { display: flex; align-items: center; gap: 18px; height: 64px; }
.vt-marque { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font: 800 1rem var(--font-display); min-width: 0; }
.vt-marque img { border-radius: 10px; flex-shrink: 0; }
.vt-marque span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.vt-nav { display: flex; gap: 4px; margin-left: auto; }
.vt-nav a { color: rgba(255,255,255,.75); text-decoration: none; font-size: .88rem; font-weight: 600; padding: 8px 12px; border-radius: 8px; }
.vt-nav a:hover { color: #fff; background: rgba(255,255,255,.08); }
.vt-haut-actions { display: flex; align-items: center; gap: 10px; }
.vt-lien-connexion { color: #fff; text-decoration: none; font-size: .88rem; font-weight: 700; padding: 8px 10px; white-space: nowrap; }
.vt-btn-petit { width: auto; padding: 9px 16px; font-size: .86rem; white-space: nowrap; }

/* Héros */
.vt-heros { background: radial-gradient(1000px 500px at 85% 0%, rgba(37,99,235,.35), transparent 60%), linear-gradient(180deg, #0F172A 0%, #13233F 100%);
  color: #fff; padding: 64px 0 84px; overflow: hidden; }
.vt-heros-grille { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.vt-surtitre { font-size: .76rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: #93C5FD; margin-bottom: 14px; }
.vt-heros h1 { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 2.85rem); line-height: 1.08; margin: 0 0 18px; color: #fff; letter-spacing: -.01em; }
.vt-heros h1 em { font-style: normal; background: linear-gradient(90deg, #60A5FA, #4ADE80); -webkit-background-clip: text; background-clip: text; color: transparent; }
.vt-intro { font-size: 1.08rem; line-height: 1.6; color: #CBD5E1; margin: 0 0 28px; max-width: 540px; }
.vt-intro b { color: #fff; }
.vt-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.vt-cta .btn { width: auto; padding: 14px 24px; font-size: 1rem; border-radius: 12px; text-decoration: none; }
.vt-btn-clair { background: rgba(255,255,255,.08) !important; color: #fff !important; border: 1px solid rgba(255,255,255,.28); }
.vt-btn-clair:hover { background: rgba(255,255,255,.14) !important; }
.vt-play { font-size: .8rem; }
.vt-atouts { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 8px 20px; color: #94A3B8; font-size: .88rem; }
.vt-atouts li::before { content: "✓"; color: #4ADE80; font-weight: 800; margin-right: 7px; }
.vt-heros-visuel { position: relative; display: block; border-radius: 18px; overflow: hidden; box-shadow: 0 30px 80px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.1);
  transform: perspective(1200px) rotateY(-6deg) rotateX(2deg); transition: transform .4s ease; }
.vt-heros-visuel:hover { transform: none; }
.vt-heros-visuel img { display: block; width: 100%; height: auto; }
.vt-heros-play { position: absolute; left: 50%; top: 50%; width: 74px; height: 74px; margin: -37px 0 0 -37px; border-radius: 50%; background: rgba(246,201,57,.95);
  color: #0F172A; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; padding-left: 5px; box-shadow: 0 10px 30px rgba(0,0,0,.4);
  animation: vt-respire 2.4s ease-in-out infinite; }
@keyframes vt-respire { 50% { transform: scale(1.08); } }

/* Sections */
.vt-section { padding: 84px 0; }
.vt-fond-doux { background: var(--gray-50); }
.vt-fond-sombre { background: #0F172A; color: #CBD5E1; }
.vt-section.vt-fond-sombre h2 { color: #fff; }
.vt-tete-section { text-align: center; max-width: 700px; margin: 0 auto 40px; }
.vt-etiquette { display: inline-block; font-size: .74rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--blue);
  background: var(--blue-light); border: 1px solid var(--blue-mid); border-radius: 999px; padding: 5px 12px; margin-bottom: 14px; }
.vt-etiquette-claire { color: #93C5FD; background: rgba(37,99,235,.15); border-color: rgba(147,197,253,.3); }
.vt-section h2 { font-family: var(--font-display); font-size: clamp(1.6rem, 3.4vw, 2.3rem); line-height: 1.15; color: var(--ink); margin: 0 0 14px; }
.vt-tete-section p, .vt-texte { color: var(--muted); font-size: 1.02rem; line-height: 1.65; margin: 0 0 14px; }
.vt-fond-sombre .vt-texte { color: #94A3B8; }

/* Vidéo */
.vt-video-cadre { max-width: 960px; margin: 0 auto; border-radius: 18px; overflow: hidden; background: #06142d; box-shadow: 0 24px 60px rgba(15,23,42,.25); aspect-ratio: 16 / 9; }
.vt-video-cadre video { width: 100%; height: 100%; display: block; background: #06142d; }
.vt-chapitres { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; max-width: 960px; margin: 18px auto 0; }
.vt-chapitres button { border: 1px solid var(--border); background: #fff; color: var(--gray-700); border-radius: 999px; padding: 8px 14px;
  font: 600 .82rem var(--font-body); cursor: pointer; transition: all .2s; }
.vt-chapitres button:hover { border-color: var(--blue); color: var(--blue); }
.vt-chapitres button.actif { background: var(--blue); border-color: var(--blue); color: #fff; }
.vt-formats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; max-width: 960px; margin: 26px auto 0; }
.vt-format { display: block; border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; text-decoration: none; background: #fff; transition: border-color .2s, transform .2s; }
.vt-format:hover { border-color: var(--blue); transform: translateY(-2px); }
.vt-format b { display: block; color: var(--ink); font-size: .95rem; }
.vt-format small { display: block; color: var(--muted); font-size: .8rem; margin-top: 3px; }
.vt-format-principal { background: linear-gradient(135deg, var(--blue), var(--green)); border-color: transparent; }
.vt-format-principal b, .vt-format-principal small { color: #fff; }

/* Espaces */
.vt-espaces { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.vt-espace { background: #fff; border: 1px solid var(--border); border-top: 4px solid var(--c); border-radius: 16px; padding: 22px 20px; }
.vt-espace-ic { font-size: 1.7rem; margin-bottom: 8px; }
.vt-espace h3 { font-family: var(--font-display); font-size: 1.15rem; color: var(--ink); margin: 0 0 4px; }
.vt-qui { color: var(--c); font-size: .82rem; font-weight: 700; margin: 0 0 14px; }
.vt-espace ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.vt-espace li { font-size: .88rem; color: var(--gray-600); line-height: 1.4; padding-left: 18px; position: relative; }
.vt-espace li::before { content: ""; position: absolute; left: 0; top: .5em; width: 7px; height: 7px; border-radius: 50%; background: var(--c); opacity: .7; }

/* Deux colonnes texte + capture */
.vt-deux-colonnes { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; }
.vt-capture { width: 100%; height: auto; border-radius: 16px; box-shadow: 0 20px 50px rgba(15,23,42,.2), 0 0 0 1px rgba(15,23,42,.06); }
.vt-coches { list-style: none; padding: 0; margin: 18px 0 24px; display: grid; gap: 10px; }
.vt-coches li { padding-left: 30px; position: relative; line-height: 1.5; color: var(--gray-700); }
.vt-fond-sombre .vt-coches li { color: #E2E8F0; }
.vt-coches li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 20px; height: 20px; border-radius: 50%; background: var(--green-light);
  color: var(--green); font-weight: 800; font-size: .75rem; display: flex; align-items: center; justify-content: center; }
.vt-fond-sombre .vt-coches li::before { background: rgba(74,222,128,.15); color: #4ADE80; }
.vt-deux-colonnes .btn { width: auto; text-decoration: none; padding: 12px 22px; }
.vt-tuiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 52px; }
.vt-tuile { border: 1px solid var(--border); border-radius: 14px; padding: 18px; background: #fff; }
.vt-tuile b { display: block; color: var(--ink); font-family: var(--font-display); margin-bottom: 6px; }
.vt-tuile span { color: var(--muted); font-size: .9rem; line-height: 1.5; }

/* Étapes */
.vt-etapes { list-style: none; counter-reset: e; padding: 0; margin: 0 auto; max-width: 980px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.vt-etapes li { counter-increment: e; background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 24px 20px; }
.vt-etapes li::before { content: counter(e); display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--blue), var(--green)); color: #fff; font: 800 1.1rem var(--font-display); margin-bottom: 14px; }
.vt-etapes b { display: block; color: var(--ink); font-size: 1.02rem; margin-bottom: 6px; }
.vt-etapes span { color: var(--muted); font-size: .9rem; line-height: 1.5; }
.vt-cta-centre { justify-content: center; margin-top: 34px; }
.vt-cta-centre .btn-discret { width: auto; }

/* Questions */
#questions details { border-bottom: 1px solid var(--border); padding: 16px 0; }
#questions summary { cursor: pointer; font-weight: 700; color: var(--ink); font-size: 1rem; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
#questions summary::-webkit-details-marker { display: none; }
#questions summary::after { content: "+"; color: var(--blue); font-size: 1.3rem; line-height: 1; }
#questions details[open] summary::after { content: "–"; }
#questions details p { color: var(--muted); line-height: 1.65; margin: 10px 0 0; }

/* Pied */
.vt-pied { background: #0F172A; color: #94A3B8; padding: 34px 0 calc(34px + env(safe-area-inset-bottom)); }
.vt-pied-grille { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; }
.vt-pied nav { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.vt-pied a { color: #CBD5E1; text-decoration: none; font-size: .88rem; }
.vt-pied a:hover { color: #fff; }

/* Tablette */
@media (max-width: 980px) {
  .vt-nav { display: none; }
  .vt-haut-actions { margin-left: auto; }
  .vt-espaces { grid-template-columns: 1fr 1fr; }
  .vt-formats { grid-template-columns: 1fr 1fr; }
}
/* Téléphone */
@media (max-width: 760px) {
  .vt-haut .vt-largeur { height: 58px; gap: 10px; padding: 0 14px; }
  .vt-marque span { font-size: .9rem; max-width: 46vw; }
  .vt-lien-connexion { display: none; }
  .vt-btn-petit { padding: 8px 12px; font-size: .8rem; }
  .vt-heros { padding: 34px 0 48px; }
  .vt-heros-grille, .vt-deux-colonnes { grid-template-columns: 1fr; gap: 28px; }
  .vt-heros-visuel { transform: none; }
  .vt-cta { flex-direction: column; }
  .vt-cta .btn { width: 100%; }
  .vt-section { padding: 54px 0; }
  .vt-largeur { padding: 0 16px; }
  .vt-tete-section { margin-bottom: 28px; }
  .vt-video-cadre { border-radius: 12px; margin: 0 -4px; }
  .vt-chapitres { flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; padding-bottom: 6px; scrollbar-width: none; }
  .vt-chapitres button { flex-shrink: 0; }
  .vt-espaces, .vt-tuiles, .vt-etapes { grid-template-columns: 1fr; }
  .vt-inverse > img { order: 2; }
  .vt-pied-grille { flex-direction: column; align-items: flex-start; }
}