:root {
  --clr-primary: #111827;
  --clr-secondary: #f9fafb;
  --clr-accent: #00d2ff;
  --clr-accent-dark: #0090b7;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --clr-primary:#f9fafb; --clr-secondary:#0f172a; }
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--clr-secondary);color:var(--clr-primary);line-height:1.6;}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.contenu a {
  position: relative;
  color: var(--clr-accent);
  text-decoration: none;
}

.contenu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--clr-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.contenu a:hover::after,
.contenu a:focus::after {
  transform: scaleX(1);
  transform-origin: left;
}


.container{width:90%;max-width:1200px;margin-inline:auto}
/* Navbar */
nav{position:fixed;top:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;padding:1rem 2rem;background:rgba(17,24,39,.8);backdrop-filter:blur(10px);z-index:2000;color:#fff;box-shadow:0 2px 10px rgba(0,0,0,.3)}
nav .logo{font-family:var(--font-heading);font-size:1.4rem;font-weight:800;letter-spacing:.5px;color:var(--clr-accent)}
nav ul{display:flex;gap:2rem;list-style:none}
nav li a{font-weight:500;transition:.3s}
nav li a:hover{color:var(--clr-accent)}
.burger{display:none;flex-direction:column;gap:6px;cursor:pointer}
.burger span{width:25px;height:3px;background:#fff;border-radius:2px;transition:.3s}
@media (max-width: 768px) {

  nav ul {
    position: fixed;
    top: 70px;
    right: 0;
    width: 60%;
    max-height: calc(100vh - 70px);
    background: rgba(17,24,39,0.95);
    flex-direction: column;
    padding: 2rem 1rem;
    transform: translateX(100%);
    transition: transform .4s ease-in-out;
    overflow-y: auto;
    border-radius: 0 0 0 12px;
    box-shadow: -4px 0 15px rgba(0,0,0,0.3);
  }

  nav ul.show {
    transform: translateX(0);
  }

  nav ul li {
    width: 100%;
    margin-bottom: 1rem;
  }

  nav ul li:last-child {
    margin-bottom: 0;
  }

  nav ul li a {
    display: block;
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--clr-primary);
    color: var(--clr-secondary);
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    transition: background-color 0.3s ease;
  }

  nav ul li a:hover,
  nav ul li a:focus {
    background-color: var(--clr-accent);
    color: #111;
  }

  .burger {
    display: flex;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 2100;
  }

  .burger span {
    width: 25px;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    transition: .3s;
  }
}

/* Hero */
.hero{position:relative;height:80vh;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;overflow:hidden}
.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.7)}
.hero .content{position:relative;z-index:1;max-width:800px;padding:0 1rem}
.hero h1{font-family:var(--font-heading);font-size:clamp(2.6rem,6vw,4.2rem);margin-bottom:1.2rem;text-shadow:0 4px 20px rgba(0,0,0,.4)}
.hero p{font-size:1.35rem;margin-bottom:2.2rem;text-shadow:0 2px 10px rgba(0,0,0,.4)}
.btn{display:inline-block;padding:.9rem 2.3rem;font-weight:600;border-radius:999rem;background:var(--clr-accent);color:#111;box-shadow:0 4px 12px var(--clr-accent-dark);transition:.35s}
.btn:hover{transform:translateY(-3px)}

/* Sections */
section{padding:5rem 0}
.heading{font-size:2.4rem;font-family:var(--font-heading);margin-bottom:2rem;position:relative;display:inline-block}
.heading::after{content:'';position:absolute;left:0;bottom:-6px;width:60%;height:4px;border-radius:2px;background:var(--clr-accent)}
.timeline{border-left:4px solid var(--clr-accent);padding-left:2rem;margin-left:1rem}
.timeline li{margin-bottom:2rem;position:relative}
.timeline li::before{content:'';position:absolute;left:-1.4rem;top:.4rem;width:14px;height:14px;border-radius:50%;background:var(--clr-accent)}
.card-grid{display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}

/* Animations */
.fade-up{
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--d,.2s), transform 0.8s var(--d,.2s);
}

.fade-up.show {
  opacity: 1;
  transform: none;
}
/* Cards */
.card {
  background: var(--clr-primary);
  color: var(--clr-secondary);
  padding: 2rem;
  border-radius: 1.4rem;
  backdrop-filter: blur(8px);
  text-align: center;
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
  transition: .3s;
  position: relative;
  z-index: 10; /* nécessaire pour que le tooltip dépasse bien les autres cartes */
  overflow: visible;
}

.card:hover {
  transform: translateY(-6px);
}

/* Voile uniquement pour cartes inactives */
.card.inactive .card-overlay {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: rgba(255,255,255,0.45);
  backdrop-filter: grayscale(100%) brightness(0.75);
  pointer-events: none;
  z-index: 15; /* au-dessus du contenu mais sous le tooltip */
}

/* Tooltip (identique pour actives et inactives) */
.card[data-desc] {
  position: relative;
  z-index: 10;
}

/* Tooltip (idem pour toutes les cartes) */
.card[data-desc]:hover::after {
  content: attr(data-desc);
  position: absolute;
  left: 50%;
  bottom: 100%;
  transform: translate(-50%, -0.6rem);
  max-width: 500px;
  min-width: 300px;
  white-space: normal;
  overflow-wrap: break-word;
  background: var(--clr-accent);
  color: #111;
  padding: .55rem .9rem;
  font-size: .85rem;
  border-radius: .45rem;
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
  z-index: 30;
}

.card[data-desc]:hover::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 100%;
  transform: translate(-50%, -0.06rem);
  border: .48rem solid transparent;
  border-bottom-color: var(--clr-accent);
  z-index: 30;
}



@media (max-width: 768px) {
  /* On cache les tooltips hover */
  .card[data-desc]:hover::after,
  .card[data-desc]:hover::before {
    display: none;
  }

  /* On supprime le ::after */
  .card[data-desc]::after {
    content: none;
    display: none;
  }

  /* Ajoute un vrai élément dans le HTML via JS ou PHP pour le tooltip mobile */
  /* Ou, si ce n'est pas possible, on crée un sous-élément via CSS */

  /* Par exemple : */
  .card[data-desc] > .mobile-tooltip {
    display: block;
    margin-top: 0.8rem;
    background: var(--clr-accent);
    color: #111;
    font-size: 0.9rem;
    padding: 0.55rem 0.9rem;
    border-radius: 0.45rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    white-space: normal;
  }
}

.mobile-tooltip {
  display: none;
}

@media (max-width: 768px) {
  .mobile-tooltip {
    display: block;
  }
}



footer {
  background: #0d1117;
  color: #c9d1d9;
  text-align: center;
  padding: 2rem;
  font-size: .9rem;
  margin-top: 4rem;
}


/* ------------------------------------------------------------------ */
/*  Blocs de commentaire / instruction                                */
/*  Usage : <div class="commentaire">…</div>                          */
/*         <div class="commentaire commentaire--important">…</div>    */
/* ------------------------------------------------------------------ */
.commentaire{
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  background: rgba(0,0,0,0.04);          /* léger fond gris */
  border-left: 4px solid var(--clr-accent);
  border-radius: 6px;
  font-size: .95rem;
  line-height: 1.5;
  color: var(--clr-primary);
}

/* Accent plus marqué pour une note cruciale */
.commentaire--important{
  background: rgba(0,210,255,0.15);      /* dérivé de --clr-accent */
  border-left-color: var(--clr-accent-dark);
}


/* Badges transport --------------------------------------------------*/
.badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:22px; height:22px;
  margin-right:.35rem;
  font-weight:700;
  font-size:.8rem;
  border-radius:50%;
  color:#fff;
}

.badge.metro{background:#00317f;}   /* bleu “Métro Lyon A” */
.badge.tram {background:#007d4c;}   /* vert “Tram” */

.g-recaptcha{
  transform: scale(.80);      /* même réduction qu’avant */
  transform-origin: 0 0;
  width: 0;                   /* rétrécit l’empreinte horizontale */
  min-width: 244px;           /* 304 px × 0.80 = 243… */
}

form.compact{
  display:flex;
  flex-wrap:wrap;
  gap:1rem;
  align-items:center;        /* 🔸 centrage vertical */
  margin-top:0.5rem;
}