/* ===========================================================
   I-Learn — feuille séminaire « résilience / Lausanne »
   Accent sage (#A4B89B / #7A9270). Dérivée du modèle I-Learn.
   =========================================================== */
:root {
  --indigo: #4A5F87;
  --indigo-dark: #2F3F5F;
  --indigo-deep: #1F2D45;
  --terracotta: #C97B5C;
  --sage: #A4B89B;
  --sage-dark: #7A9270;
  --sage-deep: #5E7355;
  --gold: #C9A961;
  --cream: #FAF6EC;
  --cream-warm: #F5EFE0;
  --ink: #1F2937;
  --ink-soft: #4B5563;
  --serif: 'Playfair Display', Georgia, serif;
  --sans: 'DM Sans', system-ui, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--sans); background: var(--cream); color: var(--ink); line-height: 1.65; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }

/* HERO */
.hero { position: relative; min-height: 92vh; display: flex; align-items: center; padding: 8rem 2rem 4rem; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; background: var(--indigo-deep); }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.5) saturate(0.85); }
.hero-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(31,45,69,0.86) 0%, rgba(94,115,85,0.5) 100%); }
.hero-content { position: relative; z-index: 1; max-width: 1400px; margin: 0 auto; width: 100%; color: var(--cream); }
.hero-meta { font-size: 0.72rem; letter-spacing: 0.28em; text-transform: uppercase; font-weight: 500; margin-bottom: 2rem; color: rgba(250,246,236,0.85); display: flex; align-items: center; gap: 1rem; }
.hero-meta::before { content: ""; flex: 0 0 40px; height: 1px; background: var(--sage); }
.hero-meta-brand { white-space: nowrap; }
.hero-meta-line2 { font-size: 0.92em; }
.hero h1 { font-family: var(--serif); font-size: clamp(2.4rem,5.6vw,4.6rem); font-weight: 500; line-height: 1.04; letter-spacing: -0.025em; margin-bottom: 1.5rem; max-width: 1100px; }
.hero h1 em { font-style: italic; font-weight: 400; color: var(--sage); }
.hero-sub { font-family: var(--serif); font-style: italic; font-size: clamp(1.1rem,2vw,1.5rem); color: rgba(250,246,236,0.92); max-width: 820px; margin-bottom: 1.5rem; line-height: 1.5; }
.hero-desc { font-size: 1.05rem; color: rgba(250,246,236,0.85); max-width: 660px; margin-bottom: 2.5rem; line-height: 1.7; }
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn { display: inline-block; padding: 1rem 2rem; border-radius: 100px; font-size: 0.95rem; font-weight: 500; transition: all 0.25s ease; cursor: pointer; border: 1px solid transparent; }
.btn-primary { background: var(--cream); color: var(--indigo-deep); }
.btn-primary:hover { background: var(--sage); transform: translateY(-2px); }
.btn-secondary { background: transparent; color: var(--cream); border-color: rgba(250,246,236,0.4); }
.btn-secondary:hover { background: var(--cream); color: var(--indigo-deep); }
@media (max-width: 768px) { .hero { padding: 7rem 1.2rem 3rem; min-height: 88vh; } }

/* INFOS BAR */
.infos-bar { background: var(--indigo-deep); color: var(--cream); padding: 1.5rem 2rem; border-bottom: 1px solid rgba(164,184,155,0.25); }
.infos-inner { max-width: 1400px; margin: 0 auto; display: flex; gap: 2.5rem; align-items: center; justify-content: center; flex-wrap: wrap; font-size: 0.85rem; font-weight: 500; letter-spacing: 0.06em; }
.infos-inner span { opacity: 0.92; position: relative; padding-left: 1.5rem; }
.infos-inner span::before { content: ""; position: absolute; left: 0; top: 50%; width: 8px; height: 8px; background: var(--sage); border-radius: 50%; transform: translateY(-50%); }
@media (max-width: 768px) { .infos-bar { padding: 1.25rem 1.2rem; } .infos-inner { flex-direction: column; align-items: flex-start; gap: 0.75rem; text-align: left; } .infos-inner span { display: block; } }

/* SECTION COMMUNE */
section.standard { padding: 7rem 2rem; }
.container { max-width: 1400px; margin: 0 auto; }
.section-meta { display: flex; align-items: center; gap: 1.2rem; margin-bottom: 1.5rem; font-size: 0.72rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--sage-dark); font-weight: 500; }
.section-meta::before { content: ""; width: 40px; height: 1px; background: var(--sage-dark); }
.section-title { font-family: var(--serif); font-size: clamp(2.2rem,4.5vw,3.6rem); font-weight: 500; line-height: 1.08; letter-spacing: -0.02em; color: var(--indigo-dark); margin-bottom: 1.5rem; max-width: 980px; }
.section-title em { font-style: italic; color: var(--sage-dark); font-weight: 400; }
.section-intro { font-size: 1.1rem; color: var(--ink-soft); max-width: 760px; line-height: 1.75; margin-bottom: 4rem; }
@media (max-width: 768px) { section.standard { padding: 4.5rem 1.2rem; } }

/* PROPOS */
.promesse { background: var(--cream-warm); }
.promesse-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 5rem; align-items: stretch; }
.promesse-text p { font-size: 1.08rem; line-height: 1.85; color: var(--ink-soft); margin-bottom: 1.2rem; }
.promesse-text p:first-of-type::first-letter { font-family: var(--serif); font-size: 3.6rem; font-weight: 500; float: left; line-height: 0.9; margin: 0.3rem 0.6rem 0 0; color: var(--sage-dark); }
.promesse-text strong { color: var(--indigo-dark); font-weight: 500; }
.promesse-img { border-radius: 4px; overflow: hidden; position: relative; min-height: 380px; }
.promesse-img image-slot, .promesse-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
@media (max-width: 900px) { .promesse-grid { grid-template-columns: 1fr; gap: 2.5rem; } .promesse-img { height: 320px; } }

/* RUBAN / PROGRAMME */
.ruban { background: var(--indigo-deep); color: var(--cream); }
.ruban .section-meta { color: var(--sage); }
.ruban .section-meta::before { background: var(--sage); }
.ruban .section-title { color: var(--cream); }
.ruban .section-title em { color: var(--sage); }
.ruban .section-intro { color: rgba(250,246,236,0.78); }
.axe-block { margin-bottom: 2.5rem; padding: 2.2rem 2.4rem; background: rgba(250,246,236,0.04); border-left: 3px solid var(--sage); border-radius: 0 4px 4px 0; }
.axe-num { font-family: var(--serif); font-style: italic; font-size: 0.95rem; color: var(--sage); font-weight: 500; letter-spacing: 0.04em; margin-bottom: 0.5rem; }
.axe-title { font-family: var(--serif); font-size: 1.65rem; font-weight: 500; letter-spacing: -0.015em; color: var(--cream); margin-bottom: 0.8rem; line-height: 1.2; }
.axe-desc { font-size: 1rem; line-height: 1.75; color: rgba(250,246,236,0.82); max-width: 880px; }
.tempsfort { margin-top: 3.5rem; padding: 2.2rem 2.5rem; background: rgba(164,184,155,0.14); border-left: 3px solid var(--sage); border-radius: 0 4px 4px 0; }
.tempsfort-label { font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--sage); font-weight: 500; margin-bottom: 0.6rem; }
.tempsfort h3 { font-family: var(--serif); font-size: 1.5rem; font-weight: 500; color: var(--cream); margin-bottom: 0.6rem; }
.tempsfort p { color: rgba(250,246,236,0.85); font-size: 1rem; line-height: 1.7; }

/* INTERVENANTS (neutres) */
.intervenants { background: var(--cream); }
.interv-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.6rem; margin-top: 2rem; }
.interv-card { background: var(--cream-warm); padding: 2.2rem 2rem; border-radius: 4px; border-top: 3px solid var(--sage-dark); }
.interv-role { font-family: var(--serif); font-style: italic; font-size: 1.2rem; font-weight: 500; color: var(--indigo-dark); margin-bottom: 0.6rem; line-height: 1.25; letter-spacing: -0.01em; }
.interv-desc { font-size: 0.95rem; color: var(--ink-soft); line-height: 1.65; }
.interv-note { margin-top: 2rem; font-size: 0.9rem; font-style: italic; color: var(--ink-soft); }
@media (max-width: 900px) { .interv-grid { grid-template-columns: 1fr; } }

/* POUR QUI */
.pour-qui { background: var(--cream-warm); }
.pour-qui-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 4rem; align-items: start; }
.pour-qui-list { list-style: none; }
.pour-qui-list li { display: flex; justify-content: space-between; align-items: baseline; padding: 1rem 0; border-bottom: 1px solid rgba(74,95,135,0.1); font-size: 1rem; color: var(--ink); gap: 1rem; }
.pour-qui-list li:last-child { border-bottom: none; }
.pour-qui-tag { font-size: 0.72rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--sage-dark); font-weight: 500; white-space: nowrap; }
.acquis-card { background: var(--cream); padding: 2.5rem; border-radius: 4px; border-left: 4px solid var(--sage-dark); }
.acquis-card h3 { font-family: var(--serif); font-size: 1.4rem; font-weight: 500; color: var(--indigo-dark); margin-bottom: 1rem; }
.acquis-list { list-style: none; }
.acquis-list li { font-size: 0.95rem; color: var(--ink-soft); padding: 0.55rem 0 0.55rem 1.4rem; position: relative; line-height: 1.6; }
.acquis-list li::before { content: "✓"; position: absolute; left: 0; top: 0.55rem; color: var(--sage-dark); font-weight: 600; }
@media (max-width: 900px) { .pour-qui-grid { grid-template-columns: 1fr; gap: 2.5rem; } }

/* HOSP / LIEU */
.hosp { background: var(--cream); padding: 7rem 2rem; }
.hosp-inner { max-width: 1400px; margin: 0 auto; }
.hosp-meta { display:flex; align-items:center; gap:1.2rem; margin-bottom:1.5rem; font-size:0.72rem; letter-spacing:0.24em; text-transform:uppercase; color:var(--sage-dark); font-weight:500; }
.hosp-meta::before { content:""; width:40px; height:1px; background:var(--sage-dark); }
.hosp-title { font-family:var(--serif); font-size:clamp(2.2rem,4.5vw,3.6rem); font-weight:500; line-height:1.08; letter-spacing:-0.02em; color:var(--indigo-dark); margin-bottom:1.5rem; max-width:900px; }
.hosp-title em { font-style:italic; color:var(--sage-dark); font-weight:400; }
.hosp-lede { font-size:1.1rem; color:var(--ink-soft); max-width:740px; line-height:1.8; margin-bottom:3.5rem; }
.hosp-cols { display:grid; grid-template-columns:1fr 1fr; gap:2rem; margin-bottom:4rem; }
.hosp-col { background:var(--cream-warm); border-radius:6px; padding:2.5rem; border-top:3px solid var(--sage-dark); }
.hosp-col-tag { font-size:0.72rem; letter-spacing:0.2em; text-transform:uppercase; color:var(--sage-dark); font-weight:500; margin-bottom:1rem; }
.hosp-col h3 { font-family:var(--serif); font-size:1.55rem; font-weight:500; color:var(--indigo-dark); margin-bottom:1rem; letter-spacing:-0.015em; line-height:1.2; }
.hosp-col p { font-size:1rem; color:var(--ink-soft); line-height:1.8; margin-bottom:1rem; }
.hosp-col p:last-child { margin-bottom:0; }
.hosp-amenities { list-style:none; margin:1.5rem 0 0; padding:0; display:grid; grid-template-columns:1fr 1fr; gap:0 1.5rem; }
.hosp-amenities li { font-size:0.92rem; color:var(--ink-soft); padding:0.55rem 0 0.55rem 1.3rem; border-bottom:1px solid rgba(74,95,135,0.1); position:relative; }
.hosp-amenities li::before { content:""; position:absolute; left:0; top:1.05rem; width:6px; height:6px; border-radius:50%; background:var(--sage-dark); }
.hosp-gallery-head { display:flex; justify-content:space-between; align-items:baseline; gap:1rem; flex-wrap:wrap; margin-bottom:1.5rem; }
.hosp-carousel { position:relative; display:flex; align-items:center; gap:1rem; }
.hosp-track { position:relative; display:flex; overflow-x:auto; gap:1.5rem; flex:1; min-width:0; scrollbar-width:none; -webkit-overflow-scrolling:touch; }
.hosp-track::-webkit-scrollbar { display:none; }
.hosp-slide { flex:0 0 100%; }
.hosp-slide image-slot { display:block; width:100%; height:480px; }
.hosp-caption { margin-top:0.9rem; font-size:0.85rem; letter-spacing:0.04em; color:var(--ink-soft); }
.hosp-arrow { flex:0 0 auto; width:52px; height:52px; border-radius:50%; border:none; background:var(--indigo-deep); color:var(--cream); font-size:1.6rem; line-height:1; cursor:pointer; display:flex; align-items:center; justify-content:center; transition:background .2s; }
.hosp-arrow:hover:not(:disabled) { background:var(--sage-dark); }
.hosp-arrow:disabled { opacity:0.25; cursor:default; }
.hosp-dots { display:flex; gap:0.55rem; justify-content:center; margin-top:1.6rem; }
.hosp-dot { width:8px; height:8px; border-radius:50%; background:rgba(74,95,135,0.25); border:none; cursor:pointer; padding:0; transition:background .2s; }
.hosp-dot.active { background:var(--sage-dark); }
@media (max-width:900px){ .hosp { padding:4.5rem 1.2rem; } .hosp-cols { grid-template-columns:1fr; } .hosp-amenities { grid-template-columns:1fr; } .hosp-slide image-slot { height:300px; } .hosp-arrow { display:none; } }

/* FINANCEMENT */
.financement { background: var(--indigo-deep); color: var(--cream); padding: 7rem 2rem; }
.financement .section-meta { color: var(--sage); }
.financement .section-meta::before { background: var(--sage); }
.financement .section-title { color: var(--cream); }
.financement .section-title em { color: var(--sage); }
.financement .section-intro { color: rgba(250,246,236,0.75); }
.tarif-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 2rem; }
.tarif-block { padding: 2.5rem; background: rgba(250,246,236,0.05); border: 1px solid rgba(164,184,155,0.32); border-radius: 6px; }
.tarif-label { font-size: 0.78rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--sage); font-weight: 500; margin-bottom: 1rem; }
.tarif-prix { font-family: var(--serif); font-size: 2.6rem; font-weight: 500; letter-spacing: -0.02em; margin-bottom: 0.8rem; line-height: 1; }
.tarif-prix em { font-style: italic; font-size: 1.1rem; color: var(--sage); font-weight: 400; }
.tarif-desc { font-size: 0.92rem; line-height: 1.65; color: rgba(250,246,236,0.8); }
@media (max-width: 900px) { .financement { padding: 4.5rem 1.2rem; } .tarif-grid { grid-template-columns: 1fr; gap: 1.2rem; } }

/* CTA FINAL */
.cta-final { position: relative; padding: 7rem 2rem; text-align: center; color: var(--cream); overflow: hidden; }
.cta-bg { position: absolute; inset: 0; z-index: 0; background: var(--indigo-deep); }
.cta-bg img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.4); }
.cta-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(31,45,69,0.82), rgba(94,115,85,0.5)); }
.cta-content { position: relative; z-index: 1; max-width: 880px; margin: 0 auto; }
.cta-final h2 { font-family: var(--serif); font-style: italic; font-size: clamp(1.8rem,3.8vw,2.8rem); font-weight: 400; line-height: 1.3; margin-bottom: 2rem; }
.cta-sub { font-size: 1.1rem; color: rgba(250,246,236,0.85); margin-bottom: 2.5rem; max-width: 620px; margin-left: auto; margin-right: auto; line-height: 1.65; }

/* FOOTER */
footer { background: var(--indigo-deep); color: rgba(250,246,236,0.8); padding: 5rem 2rem 2rem; }
.footer-grid { max-width: 1400px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(250,246,236,0.12); }
.footer-brand { font-family: var(--serif); font-size: 1.8rem; font-weight: 500; color: var(--cream); margin-bottom: 1rem; letter-spacing: -0.02em; }
.footer-brand .dot { color: var(--sage); }
.footer-tagline { font-style: italic; font-family: var(--serif); font-size: 1.1rem; line-height: 1.5; max-width: 360px; color: rgba(250,246,236,0.85); margin-bottom: 1rem; }
.footer-tagline-sub { font-size: 0.88rem; line-height: 1.6; color: rgba(250,246,236,0.6); max-width: 360px; }
.footer-col h5 { font-size: 0.74rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--sage); font-weight: 500; margin-bottom: 1.4rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.7rem; font-size: 0.9rem; }
.footer-col a:hover { color: var(--cream); }
.footer-bottom { max-width: 1400px; margin: 2rem auto 0; display: flex; justify-content: space-between; font-size: 0.8rem; opacity: 0.55; flex-wrap: wrap; gap: 1rem; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; } .footer-bottom { flex-direction: column; text-align: center; } }

/* ANIMATIONS */
@media (prefers-reduced-motion: no-preference) {
  .fade-up { opacity: 0; transform: translateY(24px); animation: fadeUp 1s cubic-bezier(0.2,0.8,0.2,1) forwards; }
  .delay-1 { animation-delay: 0.15s; } .delay-2 { animation-delay: 0.3s; } .delay-3 { animation-delay: 0.45s; }
  @keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }
}