:root{
    --brand:#0B3F69;
    --brand2:#0a3356;
    --bg:#f6f8fb;
    --text:#0f172a;
    --muted:#475569;
    --card:#ffffff;
    --shadow: 0 18px 50px rgba(2,6,23,.10);
    --radius:18px;
  }
  
  *{box-sizing:border-box}
  
  body{
    margin:0;
    font-family: system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
    color:var(--text);
    background:
      radial-gradient(1100px 600px at 20% -10%, rgba(11,63,105,.18), transparent 60%),
      radial-gradient(900px 520px at 100% 10%, rgba(11,63,105,.12), transparent 55%),
      var(--bg);
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:28px;
  }
  
  .wrap{
    width:min(960px, 100%);
    display:grid;
    grid-template-columns: 1.1fr .9fr;
    gap:18px;
  }
  
  @media (max-width: 860px){
    .wrap{grid-template-columns:1fr}
  }
  
  /* Variante 1-colonne (si tu retires la carte de droite) */
  .wrap.single{
    grid-template-columns: 1fr;
    justify-items: center;
  }
  .wrap.single .card{
    width: min(600px, 100%);
  }
  
  /* Logo principal (Aquasphera en haut) */
  .page-logo{
    grid-column: 1 / -1;
    text-align:center;
    margin-bottom:12px;
  }
  .page-logo-img{
    max-width:500px;
    width:100%;
    height:auto;
    opacity:.95;
  }
  
  .card{
    background:var(--card);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    border:1px solid rgba(2,6,23,.06);
    overflow:hidden;
  }
  
  .hero{
    padding:34px 34px 28px;
  }
  
  .brandbar{
    display:flex;
    align-items:center;
    gap:12px;
    margin-bottom:18px;
  }
  
  /* Carré bleu à gauche du titre */
  .logo{
    width:42px;
    height:42px;
    border-radius:12px;
    background:linear-gradient(145deg, var(--brand), var(--brand2));
    display:grid;
    place-items:center;
    box-shadow: 0 10px 26px rgba(11,63,105,.22);
  }
  
  /* Si tu utilises un <svg> dans .logo */
  .logo svg{
    width:22px;
    height:22px;
    fill:#fff;
    stroke:#fff;
    opacity:.95;
  }
  
  /* Si tu utilises ton /assets/a.svg via <img class="logo-icon"> */
  .logo-icon{
    width:22px;
    height:22px;
    display:block;
  }
  
  .brandtxt .name{
    font-weight:750;
  }
  .brandtxt .sub{
    font-size:13px;
    color:var(--muted);
  }
  
  h1{
    margin:10px 0;
    font-size: clamp(28px, 3.6vw, 40px);
  }
  
  .lead{
    color:var(--muted);
    font-size:16px;
    line-height:1.55;
  }
  
  .pillrow{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:16px;
  }
  
  /* Pills + icônes */
  .pill{
    padding:10px 12px;
    border-radius:999px;
    background: rgba(11,63,105,.08);
    color: var(--brand2);
    border:1px solid rgba(11,63,105,.18);
    font-size:13px;
  
    display:inline-flex;
    align-items:center;
    gap:8px;
  }
  
  .pill svg{
    width:16px;
    height:16px;
    fill:var(--brand2);
    stroke:var(--brand2);
    opacity:.9;
    flex-shrink:0;
  }
  
  /* Boutons */
  .actions{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:22px;
  }
  
  .btn{
    border-radius:14px;
    padding:12px 14px;
    font-weight:650;
    text-decoration:none;
  
    display:inline-flex;
    align-items:center;
    gap:10px;
  }
  
  .btn-primary{
    color:#fff;
    background: linear-gradient(145deg, var(--brand), var(--brand2));
  }
  
  .btn-ghost{
    color:var(--brand2);
    background:#fff;
    border:1px solid rgba(2,6,23,.10);
  }
  
  /* Icônes dans les boutons (fill + stroke, pour éviter "invisible") */
  .btn svg{
    width:18px;
    height:18px;
    fill: currentColor;
    stroke: currentColor;
    opacity:.95;
    flex-shrink:0;
  }
  
  .footer{
    padding:14px 34px 18px;
    border-top:1px solid rgba(2,6,23,.06);
    color:#64748b;
    font-size:12px;
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    justify-content:space-between;
  }
  
  /* Carte droite */
  .side{
    padding:26px;
  }
  
  .code{
    display:flex;
    gap:10px;
  }
  
  .code .n{
    font-size:54px;
    font-weight:800;
    color:var(--brand2);
  }
  
  .code .t{
    font-size:15px;
    color:var(--muted);
    font-weight:650;
  }
  
  .box{
    margin-top:14px;
    padding:14px;
    border-radius:16px;
    border:1px solid rgba(2,6,23,.08);
    background: rgba(2,6,23,.02);
  }
  
  .meta{
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    font-size:12px;
  }