/* ============================================================
   AFF-FFV LEGACY — feuille de style partagée
   Toutes les pages chargent ce seul fichier : une couleur ou une
   police changée ici se répercute automatiquement partout.
   ============================================================ */

:root {
  /* --- Palette --------------------------------------------------
     Repris du site actuel (aff-ffv-legacy.ch) d'après votre capture
     d'écran : vert-sillon/teal en couleur de marque, bouton "Contact"
     anthracite. Changez simplement les codes ci-dessous pour ajuster
     — tout le site se recolore automatiquement. */
  --color-primary: #4b9c87;       /* vert-teal de marque — en-tête, panneaux, accents */
  --color-primary-dark: #38786a;  /* teal foncé — survol */
  --color-dark: #2c2c2c;          /* anthracite — bouton "Contact", accents forts */
  --color-dark-hover: #171717;
  --color-secondary: #1f3b33;     /* teal très foncé — pied de page */
  --color-bg: #ffffff;            /* fond général */
  --color-surface: #ffffff;       /* fond des cartes */
  --color-text: #1c1c1c;          /* texte principal */
  --color-text-muted: #5b5b5b;    /* texte secondaire */
  --color-border: #e5e0d8;

  --font-heading: "Poppins", "Segoe UI", Arial, sans-serif;
  --font-body: "Segoe UI", Arial, sans-serif;

  --radius: 14px;
  --max-width: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

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

a { color: inherit; }

h1, h2, h3 {
  font-family: var(--font-heading);
  line-height: 1.15;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; color: var(--color-text-muted); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 72px 0; }
.section--tight { padding: 48px 0; }
.section--alt { background: var(--color-surface); }

.eyebrow {
  display: inline-block;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--color-primary);
  margin-bottom: 0.75em;
}

.section-head { max-width: 640px; margin: 0 0 40px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }

/* --- Boutons ---------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn--primary { background: var(--color-dark); color: #fff; }
.btn--primary:hover { background: var(--color-dark-hover); }

.btn--ghost { border-color: rgba(255,255,255,0.7); color: #fff; }
.btn--ghost:hover { border-color: #fff; background: rgba(255,255,255,0.12); }

.btn--outline { border-color: var(--color-primary); color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary); color: #fff; }

/* --- En-tête / navigation ---------------------------------------
   Couleur de fond, bouton "Contact" anthracite et texte de menu en
   capitales : repris de la capture d'écran du site actuel. */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-primary);
}

.site-header .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.site-header .logo { display: flex; align-items: center; flex-shrink: 0; }
.site-header .logo img { height: 44px; width: auto; }

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
  flex: 1 1 auto;
  min-width: 260px;
}

.nav a {
  text-decoration: none;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #fff;
  padding: 10px 14px;
  border-radius: 999px;
  transition: background 0.15s ease, color 0.15s ease;
}

.nav a:hover,
.nav a[aria-current="page"] {
  background: rgba(0,0,0,0.18);
}

.nav-extra { display: flex; align-items: center; gap: 10px; margin-left: 8px; }

.lang-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  color: var(--color-text);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 8px 14px;
  border-radius: 999px;
}

/* --- Hero -----------------------------------------------------------
   Grande photo pleine largeur avec un bandeau de couleur en
   superposition, comme sur le site actuel. */
.hero { position: relative; background: var(--color-secondary); overflow: hidden; }

.hero-media {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  display: block;
}

.hero-panel {
  position: absolute;
  right: 0;
  bottom: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 40px 44px;
  max-width: 560px;
  width: 100%;
}

.hero-panel h1 { color: #fff; font-weight: 800; }

.hero-panel p.lead {
  color: rgba(255,255,255,0.92);
  font-size: 1rem;
  margin: 0;
}

.hero-actions { display: flex; gap: 14px; margin-top: 24px; flex-wrap: wrap; }

@media (max-width: 860px) {
  .hero-panel { position: static; max-width: none; }
  .hero-media { aspect-ratio: 4 / 3; }
}

/* --- Cartes (catalogue, événements, réalisations) ------------------ */
.grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.card:hover { box-shadow: 0 12px 28px rgba(0,0,0,0.09); transform: translateY(-3px); }

.card img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }

.card-body { padding: 18px 20px 22px; flex: 1; display: flex; flex-direction: column; }

.card-body h3 { margin-bottom: 6px; }

.card-body .tag {
  margin-top: auto;
  padding-top: 14px;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-primary);
}

/* --- Bandeau chiffres / réalisations -------------------------------- */
.stats {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  text-align: center;
}

.stat .number {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-primary);
  display: block;
}

.stat .label { color: var(--color-text-muted); font-size: 0.9rem; }

/* --- Bandeau CTA ------------------------------------------------------ */
.cta-band {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  padding: 48px;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
}

.cta-band h2 { color: #fff; margin: 0; }
.cta-band p { color: rgba(255,255,255,0.9); margin: 6px 0 0; }

/* --- Pied de page ------------------------------------------------------- */
.site-footer {
  background: var(--color-secondary);
  color: rgba(255,255,255,0.9);
  padding: 56px 0 28px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-bottom: 32px;
}

.site-footer h3 { color: #fff; font-size: 1rem; margin-bottom: 14px; }

.site-footer a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  display: block;
  margin-bottom: 8px;
  font-size: 0.92rem;
}

.site-footer a:hover { color: #fff; text-decoration: underline; }

.social-row { display: flex; gap: 12px; margin-top: 8px; }
.social-row a {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; font-weight: 700;
  margin-bottom: 0;
}
.social-row a:hover { background: var(--color-primary); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 20px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.65);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: space-between;
}

/* --- Galerie photos (voir README pour la convention "liste.txt") ------- */
.gallery {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}
.gallery img { aspect-ratio: 4/3; object-fit: cover; border-radius: 10px; }

/* ============================================================
   Frise chronologique "Nos réalisations" + animations au scroll
   ============================================================ */

/* Révélation au défilement : tout élément .reveal part invisible et
   légèrement décalé, puis glisse en place quand il entre à l'écran
   (voir js/reveal.js). Si JavaScript est désactivé, il reste visible
   par défaut — rien n'est jamais caché définitivement. */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none; opacity: 1; transform: none; }
}

.page-intro { text-align: center; padding: 64px 0 24px; }
.page-intro .eyebrow { color: var(--color-primary); }

.timeline {
  position: relative;
  max-width: 980px;
  margin: 0 auto;
  padding: 40px 0 20px;
}

/* Ligne verticale centrale (déplacée à gauche sur mobile) */
.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 28px;
  width: 3px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-border) 90%);
  border-radius: 3px;
}

.milestone {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 0 0 56px 68px;
}

.milestone::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 6px;
  width: 18px;
  height: 18px;
  background: var(--color-surface);
  border: 3px solid var(--color-primary);
  border-radius: 50%;
  transform: translateX(-50%);
  transition: transform 0.3s ease, background 0.3s ease;
}

.milestone.is-visible::before { background: var(--color-primary); transform: translateX(-50%) scale(1.15); }

.milestone-date {
  display: inline-block;
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.milestone-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(160px, 220px) minmax(0, 1fr);
  max-width: 100%;
}

.milestone-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

.milestone-body { padding: 22px 24px; }
.milestone-body h3 { margin-bottom: 8px; }

/* Mini-galerie vidéo (ex. témoignages) : vignettes avec bouton "play" */
.video-grid {
  grid-column: 1 / -1; /* prend toute la largeur sous l'image + le texte */
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  padding: 0 24px 22px;
}
.video-grid img {
  border-radius: 10px;
  aspect-ratio: 8/5;
  object-fit: cover;
  transition: transform 0.25s ease;
}
.video-grid a:hover img { transform: scale(1.04); }

@media (max-width: 640px) {
  .timeline::before { left: 14px; }
  .milestone { padding-left: 34px; }
  .milestone::before { left: 14px; }
  .milestone-card { grid-template-columns: 1fr; }
  .milestone-card img { aspect-ratio: 16/9; }
}

/* Décor animé discret (bulle qui flotte lentement) */
.floating-decor {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(75,156,135,0.35), rgba(75,156,135,0));
  filter: blur(2px);
  animation: float-slow 9s ease-in-out infinite;
  pointer-events: none;
}
@keyframes float-slow {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-18px) translateX(10px); }
}
@media (prefers-reduced-motion: reduce) {
  .floating-decor { animation: none; }
}

@media (max-width: 720px) {
  .site-header .container { flex-direction: column; align-items: flex-start; gap: 10px; }
  .nav { gap: 2px; }
  .nav a { padding: 6px 10px; font-size: 0.88rem; }
  .cta-band { flex-direction: column; align-items: flex-start; }
}