/* ---------- Palette : luxe sobre, touche dorée ---------- */
:root {
  --ink: #15120e;
  --charcoal: #221c15;
  --charcoal-soft: #2c241b;
  --cream: #faf6ee;
  --cream-deep: #f1e8d6;
  --gold: #b3894c;
  --gold-dark: #8a6733;
  --gold-soft: #e7d7b3;
  --gray-600: #6f665a;
  --gray-200: #e5dcc8;
  --white: #ffffff;
  --eco: #79b356;
  --eco-deep: #4e8a33;
  --eco-dark: #3f6b2c;
  --eco-pale: #f1f8ec;
  --eco-mist: #e4f2dd;
  --leaf: #8ec46b;
  --leaf-dark: #6faa4d;
  --radius: 12px;
  --shadow: 0 14px 40px rgba(21, 18, 14, 0.10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
  font-weight: 600;
}

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

a { color: var(--eco-deep); text-decoration: none; }
a:hover { color: var(--eco); }

/* Les liens dans le texte courant (paragraphes) ne doivent pas dépendre
   uniquement de la couleur pour être identifiés (accessibilité) : on les
   souligne. Les liens de navigation, boutons et cartes gardent leur propre
   style distinctif et ne sont pas concernés. */
p a { text-decoration: underline; text-underline-offset: 3px; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Header ---------- */
header.site-header {
  background: var(--cream);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  max-width: 1120px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}
.brand:hover { text-decoration: none; }
.brand .mark {
  width: 42px;
  height: 42px;
  border: 1px solid var(--gold);
  border-radius: 10px;
  object-fit: cover;
  object-position: top center;
  flex-shrink: 0;
  background: var(--ink);
}
.brand .brand-text { display: flex; flex-direction: column; }
.brand .name {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.brand .tagline {
  font-size: 0.72rem;
  color: var(--gray-600);
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

nav.main-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}
nav.main-nav a {
  color: var(--ink);
  font-weight: 500;
  font-size: 0.88rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 4px;
}
nav.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--eco);
  transition: right 0.25s ease;
}
nav.main-nav a:hover::after,
nav.main-nav a.active::after { right: 0; }
nav.main-nav a:hover { color: var(--eco-deep); text-decoration: none; }
nav.main-nav a.active { color: var(--eco-deep); }

nav.main-nav a.nav-multiline {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.3;
  padding-bottom: 4px;
}
nav.main-nav a.nav-multiline .nav-main,
nav.main-nav a.nav-multiline .nav-sub {
  white-space: nowrap;
}
nav.main-nav a.nav-multiline .nav-sub {
  text-transform: none;
  font-size: 0.68rem;
  letter-spacing: 0.02em;
  color: var(--gray-600);
  font-weight: 400;
}
nav.main-nav a.nav-multiline:hover .nav-sub,
nav.main-nav a.nav-multiline.active .nav-sub { color: var(--eco-deep); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--ink);
}

@media (max-width: 760px) {
  nav.main-nav {
    display: none;
    width: 100%;
    order: 3;
  }
  nav.main-nav.open { display: block; }
  nav.main-nav ul {
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--gray-200);
    margin-top: 16px;
  }
  nav.main-nav a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--gray-200);
  }
  .nav-wrap { flex-wrap: wrap; }
  .nav-toggle { display: block; }
}

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(ellipse at top right, rgba(121,179,86,0.16), transparent 55%),
    linear-gradient(160deg, #fcfdf8, var(--eco-mist));
  color: var(--ink);
  padding: 96px 0 104px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--eco), transparent);
}
.hero .eyebrow {
  color: var(--eco-deep);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: inline-block;
}
.hero h1 {
  font-size: 3rem;
  line-height: 1.18;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.hero p.lead {
  font-size: 1.15rem;
  color: #5d5344;
  max-width: 600px;
  margin: 0 0 36px;
  font-weight: 300;
}
.hero .cta-row { display: flex; gap: 18px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--leaf), var(--leaf-dark));
  color: #17240f;
}
.btn-primary:hover { box-shadow: 0 10px 26px rgba(111,170,77,0.4); }
.btn-outline { background: transparent; color: var(--ink); border: 1px solid #c9bda2; }
.btn-outline:hover { background: rgba(121,179,86,0.08); border-color: var(--eco); }

/* ---------- Sections ---------- */
section { padding: 56px 0; }
section.alt { background: var(--eco-pale); }
section.dark {
  background: var(--ink);
  color: var(--cream);
}
section.dark .section-title { color: var(--white); }
section.dark .section-sub { color: #cbbfa9; }

.eyebrow-line {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.eyebrow-line .rule { width: 32px; height: 1px; background: var(--eco); }

h2.section-title {
  font-size: 2.1rem;
  margin: 0 0 10px;
  color: var(--ink);
  letter-spacing: -0.005em;
}
p.section-sub {
  color: var(--gray-600);
  margin: 0 0 44px;
  max-width: 620px;
  font-weight: 300;
}

.grid {
  display: grid;
  gap: 26px;
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 800px) {
  .grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.1rem; }
}

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 34px 30px;
  box-shadow: var(--shadow);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover { border-color: var(--eco); transform: translateY(-3px); }
.card h3 {
  margin-top: 0;
  color: var(--ink);
  font-size: 1.2rem;
  border-bottom: 1px solid var(--gray-200);
  padding-bottom: 14px;
  margin-bottom: 14px;
}
.card p { color: var(--gray-600); margin-bottom: 0; }

.badge {
  display: inline-block;
  background: transparent;
  color: var(--eco-deep);
  font-size: 0.74rem;
  font-weight: 600;
  padding: 0;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

/* Sur le fond --cream-deep (section.alt), --gold-dark tombe juste sous le
   ratio de contraste AA (4.24:1 au lieu de 4.5:1 requis) — teinte assombrie
   spécifiquement ici pour rester lisible sans changer les autres usages. */
section.alt .badge { color: var(--eco-dark); }

.callout {
  background: var(--ink);
  color: var(--cream);
  border-radius: var(--radius);
  padding: 40px 44px;
  margin-top: 16px;
  border-left: 2px solid var(--gold);
}
.callout h3 { color: var(--white); margin-top: 0; }
.callout p { color: #cbbfa9; margin-bottom: 0; }
.callout a { color: var(--gold-soft); text-decoration: underline; }

/* ---------- Tables (tarifs) ---------- */
table.pricing {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
table.pricing th, table.pricing td {
  text-align: left;
  padding: 18px 22px;
  border-bottom: 1px solid var(--gray-200);
}
table.pricing th {
  background: var(--ink);
  color: var(--gold-soft);
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
table.pricing tr:last-child td { border-bottom: none; }
table.pricing td.price { font-weight: 600; color: var(--gold-dark); white-space: nowrap; font-family: 'Playfair Display', serif; }

/* ---------- Bio layout ---------- */
.bio-layout {
  display: grid;
  grid-template-columns: 310px 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 40px;
}
@media (max-width: 800px) {
  .bio-layout { grid-template-columns: 1fr; }
}
.bio-photo {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--gold);
  box-shadow: var(--shadow);
}

/* ---------- Video grid ---------- */
.video-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: border-color 0.2s ease;
}
.video-card:hover { border-color: var(--eco); }
.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  background: var(--ink);
}
.video-embed iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
}
.video-card .video-info { padding: 20px 22px; }
.video-card h3 { margin: 0 0 6px; font-size: 1.05rem; color: var(--ink); }
.video-card p { margin: 0; color: var(--gray-600); font-size: 0.9rem; }

/* ---------- Structure de cours (onglets + accordéon) ---------- */
.subject-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.subject-tab {
  padding: 11px 24px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  border-radius: var(--radius);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--gray-600);
  transition: all 0.2s ease;
}
.subject-tab:hover:not(.active) { border-color: var(--eco); color: var(--eco-deep); }
.subject-tab.active {
  background: var(--eco-deep);
  color: #ffffff;
  border-color: var(--eco-deep);
}

.subject-panel { display: none; }
.subject-panel.active { display: block; }

details.niveau {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 14px;
  background: var(--white);
  overflow: hidden;
}
details.niveau > summary {
  padding: 18px 24px;
  cursor: pointer;
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
details.niveau > summary::-webkit-details-marker { display: none; }
details.niveau > summary::after {
  content: "+";
  color: var(--eco-deep);
  font-size: 1.3rem;
  font-weight: 400;
}
details.niveau[open] > summary::after { content: "\2013"; }
details.niveau[open] > summary { border-bottom: 1px solid var(--gray-200); }
.niveau-body { padding: 6px 24px 18px; }
.niveau-note {
  color: var(--gray-600);
  font-size: 0.85rem;
  font-style: italic;
  margin: 10px 0 6px;
}

details.chapitre { border-bottom: 1px solid var(--gray-200); }
details.chapitre:last-child { border-bottom: none; }
details.chapitre > summary {
  padding: 13px 2px;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--ink);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
details.chapitre > summary::-webkit-details-marker { display: none; }
details.chapitre > summary .chevron { color: var(--eco); font-size: 0.85rem; }
.chapitre-content { padding: 2px 2px 18px; }

.faq-list { max-width: 780px; }
details.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 10px;
  background: var(--cream);
}
details.faq-item > summary {
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 600;
  color: var(--ink);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
details.faq-item > summary::-webkit-details-marker { display: none; }
details.faq-item > summary::after {
  content: "+";
  color: var(--eco-deep);
  font-size: 1.3rem;
  font-weight: 400;
  flex-shrink: 0;
}
details.faq-item[open] > summary::after { content: "\2013"; }
details.faq-item[open] > summary { border-bottom: 1px solid var(--gray-200); }
.faq-answer { padding: 4px 20px 18px; color: var(--gray-600); }
.faq-answer p { margin: 0; }

.tag-soon {
  display: inline-block;
  font-size: 0.7rem;
  color: var(--gray-600);
  background: var(--cream-deep);
  padding: 5px 12px;
  border-radius: var(--radius);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}
.tag-ready {
  display: inline-block;
  font-size: 0.68rem;
  color: var(--eco-dark);
  border: 1px solid #cde6bd;
  padding: 4px 10px;
  border-radius: var(--radius);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}
a.tag-ready:hover { background: #e6f3db; }

@media (max-width: 600px) {
  details.chapitre > summary { font-size: 0.88rem; }
  details.niveau > summary { font-size: 1rem; padding: 15px 16px; }
  .niveau-body { padding: 4px 16px 16px; }
}

.notice {
  border: 1px solid #cde6bd;
  background: var(--eco-pale);
  border-radius: var(--radius);
  padding: 20px 24px;
  color: var(--eco-dark);
  font-size: 0.9rem;
  margin-bottom: 36px;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
@media (max-width: 800px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-info ul { list-style: none; padding: 0; margin: 0; }
.contact-info li {
  display: flex;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-200);
  color: var(--ink);
}
.contact-info li .label {
  color: var(--eco-deep);
  min-width: 110px;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding-top: 2px;
}

form.contact-form { display: flex; flex-direction: column; gap: 22px; }
form.contact-form label {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--eco-deep);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}
form.contact-form input,
form.contact-form textarea {
  width: 100%;
  padding: 10px 2px;
  border: none;
  border-bottom: 1px solid var(--gray-200);
  border-radius: 0;
  font-size: 0.98rem;
  font-family: inherit;
  background: transparent;
  color: var(--ink);
}
form.contact-form input:focus,
form.contact-form textarea:focus {
  outline: none;
  border-bottom-color: var(--eco);
}
form.contact-form textarea { resize: vertical; min-height: 120px; }
form.contact-form button {
  align-self: flex-start;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, var(--leaf), var(--leaf-dark));
  color: #17240f;
  margin-top: 8px;
}

/* ---------- Footer ---------- */
footer.site-footer {
  background: var(--ink);
  color: #cbbfa9;
  padding: 48px 0;
  margin-top: 40px;
  border-top: 1px solid rgba(179,137,76,0.3);
}
footer.site-footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
footer.site-footer p { margin: 0; font-size: 0.85rem; letter-spacing: 0.02em; }
footer.site-footer a { color: var(--gold-soft); }

/* Mention marque déposée INPI dans le footer */
footer.site-footer .footer-inpi {
  color: var(--gold-soft);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}


/* ---------- Hero accueil : photo + badges (refonte verte 08/2026) ---------- */
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: center;
}
.hero-photo-wrap { position: relative; justify-self: center; }
.hero-photo-wrap .blob {
  position: absolute;
  inset: -30px;
  background: radial-gradient(circle at 40% 40%, rgba(121,179,86,0.30), transparent 65%);
  border-radius: 50%;
}
.hero-photo {
  width: 100%;
  max-width: 330px;
  border-radius: 24px;
  position: relative;
  box-shadow: 0 20px 50px rgba(60, 90, 45, 0.22);
}
.hero-badges { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.hero-badges span {
  font-size: 0.85rem;
  color: var(--eco-dark);
  background: #f3faee;
  border: 1px solid #c9e2bb;
  padding: 6px 12px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(60, 90, 45, 0.08);
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-photo-wrap { margin-top: 12px; }
}