:root{
    /* Palette extraite du logo (bleus / oranges + neutres) */
    --c-blue:   #2F9DD8;  /* bleu clair (eau) */
    --c-blue2:  #16669B;  /* bleu moyen */
    --c-navy:   #03396B;  /* bleu profond */
    --c-orange: #F0890A;  /* orange clair */
    --c-amber:  #D46516;  /* orange soutenu */
    --c-rust:   #AF3524;  /* rouge/orange (toits) */
  
    --c-ink:   #0B2236;   /* texte principal (bleu nuit) */
    --c-text:  #1E2A33;   /* gris bleuté */
    --c-muted: #5B6772;   /* gris neutre */
    --c-bg:    #F6FAFD;   /* fond très clair (léger bleu) */
    --c-card:  #FFFFFF;
  
    --c-border: rgba(3, 57, 107, 0.14); /* navy en alpha */
    --shadow: 0 10px 24px rgba(3, 57, 107, 0.10);
    --shadow-hover: 0 16px 34px rgba(3, 57, 107, 0.16);
    --radius: 18px;
  }
  
  *{ box-sizing: border-box; margin: 0; padding: 0; }
  
  body{
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    color: var(--c-text);
    background:
      radial-gradient(900px 450px at 12% 0%, rgba(47,157,216,0.14), transparent 60%),
      radial-gradient(900px 450px at 92% 12%, rgba(240,137,10,0.12), transparent 55%),
      radial-gradient(700px 380px at 70% 85%, rgba(175,53,36,0.08), transparent 55%),
      var(--c-bg);
    min-height: 100vh;
    line-height: 1.5;
  }
  
  .container{
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 16px 48px;
  }
  
  header{
    background: rgba(255,255,255,0.78);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px 18px;
    backdrop-filter: blur(10px);
  }
  
  /* Bandeau H1 avec logos */
  .hero{
    display: flex;
    flex-direction: row;
    gap: 12px;
  }
  
  .hero img{
    width: 150px;
    height: 56px;
    filter: drop-shadow(0 6px 10px rgba(3,57,107,0.14));
  }
  
  h1{
    flex: 1;
    font-size: clamp(1.2rem, 2.3vw, 1.85rem);
    line-height: 1.2;
    text-align: left;
    color: var(--c-ink);
    font-weight: 800;
    letter-spacing: -0.02em;
  }
  
  .sub{
    margin-top: 10px;
    text-align: center;
    color: var(--c-muted);
    font-size: 0.98rem;
  }
  
  /* Accent bar */
  .accent{
    margin-top: 14px;
    height: 6px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--c-blue), var(--c-orange));
    opacity: 0.95;
  }
  
  main{ margin-top: 20px; }
  
  h2{
    margin: 26px 6px 12px;
    font-size: 1.15rem;
    color: var(--c-ink);
    font-weight: 800;
    letter-spacing: -0.01em;
    display: inline-flex;
    align-items: center;
    gap: 10px;
  }
  
  h2::before{
    content: "";
    width: 12px;
    height: 12px;
    border-radius: 4px;
    background: linear-gradient(135deg, var(--c-blue), var(--c-orange));
    box-shadow: 0 8px 16px rgba(3,57,107,0.12);
    display: inline-block;
  }
  
  .grid-3{
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 10px;
  }
  
  .grid-1{
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    margin-top: 10px;
  }
  
  .tile{
    position: relative;
    display: block;
    text-decoration: none;
    background: linear-gradient(180deg, rgba(255,255,255,0.92), rgba(255,255,255,0.82));
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px 16px 14px;
    transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
    overflow: hidden;
    min-height: 128px;
  }
  
  /* Filet coloré discret en haut de la tuile */
  .tile::before{
    content:"";
    position:absolute;
    inset: 0 0 auto 0;
    height: 5px;
    background: linear-gradient(90deg, var(--c-blue), var(--c-orange));
    opacity: 0.95;
  }
  
  /* halo coloré */
  .tile::after{
    content:"";
    position:absolute;
    width: 220px;
    height: 220px;
    right: -120px;
    top: -120px;
    background:
      radial-gradient(circle at 30% 30%, rgba(47,157,216,0.24), transparent 60%),
      radial-gradient(circle at 70% 70%, rgba(240,137,10,0.16), transparent 62%),
      radial-gradient(circle at 55% 45%, rgba(175,53,36,0.10), transparent 60%);
    transform: rotate(10deg);
    pointer-events: none;
  }
  
  .tile:hover{
    box-shadow: var(--shadow-hover);
    border-color: rgba(3, 57, 107, 0.22);
  }
  
  .tile:focus{
    outline: none;
    box-shadow: 0 0 0 4px rgba(47,157,216,0.24), var(--shadow-hover);
  }
  
  .tile-title{
    font-weight: 900;
    color: var(--c-ink);
    font-size: 1.02rem;
    letter-spacing: -0.01em;
    margin-top: 10px;
    margin-bottom: 8px;
  }
  
  .tile-desc{
    color: var(--c-muted);
    font-size: 0.95rem;
    margin-bottom: 12px;
    max-width: 60ch;
  }
  
  .tile-cta{
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    color: var(--c-ink);
    padding: 8px 10px;
    border-radius: 12px;
    background: rgba(47,157,216,0.10);
    border: 1px solid rgba(47,157,216,0.22);
    width: fit-content;
  }
  
  .tile-cta .dot{
    width: 10px;
    height: 10px;
    border-radius: 4px;
    background: var(--c-blue);
    box-shadow: 0 8px 16px rgba(47,157,216,0.20);
  }
  
  /* Variante CTA orange */
  .tile-cta.orange{
    background: rgba(240,137,10,0.10);
    border: 1px solid rgba(240,137,10,0.24);
  }
  .tile-cta.orange .dot{
    background: var(--c-orange);
    box-shadow: 0 8px 16px rgba(240,137,10,0.18);
  }
  
  .note{
    margin: 8px 6px 0;
    color: var(--c-muted);
    font-size: 0.98rem;
  }
  
  .note a{
    color: var(--c-ink);
    font-weight: 800;
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
  }
  
  footer{
    margin-top: 26px;
    color: var(--c-muted);
    font-size: 0.92rem;
    text-align: center;
  }
  
  /* Responsive */
  @media (max-width: 900px){
    .grid-3{ grid-template-columns: 1fr; }
    .hero{ grid-template-columns: 64px 1fr 64px; }
    .hero img{ width: 64px; height: 44px; }
  }
  
  @media print{
    body{ background: #fff; }
    header, .tile{ box-shadow: none; }
    .tile:hover{ transform: none; }
    a{ color: #000; text-decoration: none; }
  }