/* GT SPHERE — styles communs des pages publiques (accueil, mentions légales).
   Pour changer les couleurs de ces pages, il suffit de modifier les lignes ci-dessous. */
:root {
  --nuit: #0f1c2b;
  --encre: #10202c;
  --cyan: #0a8db0;
  --cyan-fonce: #076f8b;
  --cyan-pale: #e3f3f7;
  --cyan-vif: #3fd0e0;
  --soleil: #f2b33d;
  --papier: #f8fbfc;
  --blanc: #ffffff;
  --gris: #4d6470;
  --trait: #d6e3e8;
  --alerte: #a3361f;
  --sans: 'Barlow', 'Arial Narrow', Arial, sans-serif;
  --serif: 'Source Serif 4', Georgia, serif;
  --large: 68rem;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--papier); color: var(--encre);
  font-family: var(--serif); font-size: 1.0625rem; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--sans); line-height: 1.12; margin: 0; color: var(--encre); }
p { margin: 0 0 1rem; }
/* Aucun lien souligné sur le site : la couleur suffit à les repérer. */
a { color: var(--cyan-fonce); text-decoration: none; font-weight: 600; }
a:hover { color: var(--nuit); }
:focus-visible { outline: 3px solid var(--soleil); outline-offset: 2px; }
.conteneur { max-width: var(--large); margin: 0 auto; padding: 0 1.5rem; }
.visuellement-cache { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* En-tête */
.entete { position: sticky; top: 0; z-index: 10; background: rgba(248, 251, 252, .94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--trait); }
.entete .conteneur { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4.25rem; }
.marque { font-family: var(--sans); font-weight: 700; font-size: 1.3rem; letter-spacing: .05em; color: var(--nuit); text-decoration: none; display: inline-flex; align-items: center; gap: .55rem; }
.marque::before { content: ''; width: .7rem; height: .7rem; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-pale); }
.menu { display: flex; align-items: center; gap: 1.6rem; font-family: var(--sans); font-weight: 600; }
.menu a { color: var(--encre); text-decoration: none; }
.menu a:hover { color: var(--cyan-fonce); }
.bouton {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--sans); font-weight: 700; font-size: 1.02rem; text-decoration: none; cursor: pointer;
  border-radius: 8px; padding: .7rem 1.25rem; border: 2px solid transparent; transition: background .15s, color .15s;
}
.bouton-plein { background: var(--cyan-fonce); color: var(--blanc); }
.bouton-plein:hover { background: var(--nuit); }
.bouton-contour { border-color: var(--nuit); color: var(--nuit); background: transparent; }
.bouton-contour:hover { background: var(--nuit); color: var(--blanc); }
.menu .bouton { padding: .45rem .95rem; font-size: .98rem; }

/* Pied de page */
.pied { background: var(--nuit); color: #c3d3dc; margin-top: 5rem; font-family: var(--sans); }
.pied .conteneur { padding-top: 3rem; padding-bottom: 2.5rem; display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; }
.pied .marque { color: var(--blanc); }
.pied .marque::before { background: var(--cyan-vif); box-shadow: none; }
.pied h2 { color: var(--blanc); font-size: 1rem; letter-spacing: .06em; text-transform: uppercase; margin-bottom: .8rem; }
.pied p { margin: .7rem 0 0; font-size: .98rem; }
.pied ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .45rem; }
.pied a { color: #e6f3f6; text-decoration: none; }
.pied a:hover { color: var(--cyan-vif); }
.pied .bas { border-top: 1px solid #23384d; }
.pied .bas .conteneur { display: flex; justify-content: flex-start; gap: 1rem; flex-wrap: wrap; padding-top: 1.1rem; padding-bottom: 1.3rem; font-size: .88rem; color: #8ea4b3; grid-template-columns: none; }

@media (max-width: 760px) {
  .menu .lien-texte { display: none; }
  .marque, .menu .bouton { white-space: nowrap; }
  .pied .conteneur { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }