:root{
    --nuit:#051825; --nuit2:#0b2536; --or:#c9a45c; --or-clair:#e2c88f;
    --creme:#faf7f0; --encre:#16253a; --gris:#5f6878; --filet:#e4dccb;
  }
  *{box-sizing:border-box}
  html,body{margin:0}
  body{background:var(--creme);color:var(--encre);font-family:"EB Garamond",Georgia,serif;font-size:19px;line-height:1.55}
  a{color:inherit}
  .kicker{font-family:Poppins,Arial,sans-serif;font-weight:500;font-size:11px;letter-spacing:.32em;text-transform:uppercase}
  .filet{display:flex;align-items:center;justify-content:center;gap:10px;margin:14px auto}
  .filet span{display:block;height:1px;width:64px;background:currentColor;opacity:.8}
  .filet i{display:block;width:7px;height:7px;background:currentColor;transform:rotate(45deg)}

  header{background:var(--nuit);color:#f3ecdc;text-align:center;padding:56px 20px 64px}
  header .kicker{color:var(--or)}
  header .filet{color:var(--or)}
  header h1{font-weight:500;font-size:clamp(34px,6vw,52px);line-height:1.08;margin:8px 0 6px;color:#f6efe0}
  header .sous{font-style:italic;color:var(--or-clair);font-size:20px;margin:0}

  main{max-width:880px;margin:0 auto;padding:0 20px 40px}
  .intro{max-width:640px;margin:44px auto 8px;text-align:center}
  .intro p{margin:0 0 12px}

  .format{display:flex;justify-content:center;gap:0;margin:30px auto 10px;border:1px solid var(--filet);border-radius:999px;width:max-content;max-width:100%;background:#fff;overflow:hidden}
  .format button{font-family:Poppins,Arial,sans-serif;font-size:13px;font-weight:500;letter-spacing:.04em;border:0;background:transparent;color:var(--gris);padding:11px 20px;cursor:pointer}
  .format button[aria-pressed="true"]{background:var(--nuit);color:var(--or-clair)}
  .format-aide{text-align:center;color:var(--gris);font-size:16px;margin:0 0 26px}

  .cartes{display:grid;grid-template-columns:1fr 1fr;gap:22px}
  @media (max-width:720px){.cartes{grid-template-columns:1fr}}
  .carte{background:#fff;border:1px solid var(--filet);border-top:3px solid var(--or);border-radius:6px;padding:26px 26px 24px;display:flex;flex-direction:column}
  .carte .kicker{color:var(--or);font-size:10px}
  .carte h2{font-weight:500;font-size:28px;line-height:1.15;margin:8px 0 8px}
  .carte p{margin:0 0 18px;color:#2c3a4f;flex:1}
  .btn{display:flex;align-items:center;justify-content:space-between;gap:12px;text-decoration:none;font-family:Poppins,Arial,sans-serif;font-size:14px;font-weight:500;background:var(--nuit);color:#f6efe0;padding:14px 18px;border-radius:4px;transition:background .15s}
  .btn:hover,.btn:focus-visible{background:var(--nuit2)}
  .btn small{color:var(--or-clair);font-weight:400;font-size:12px;white-space:nowrap}
  .btn svg{flex:none}
  [data-fmt]{display:none}
  body[data-format="a4"] [data-fmt="a4"], body[data-format="letter"] [data-fmt="letter"]{display:flex}

  section.conseils{margin:46px auto 0;max-width:680px}
  section.conseils h3{text-align:center;font-weight:500;font-size:26px;margin:4px 0 14px}
  section.conseils .kicker{display:block;text-align:center;color:var(--or)}
  section.conseils ul{list-style:none;padding:0;margin:0}
  section.conseils li{position:relative;padding:0 0 12px 26px}
  section.conseils li::before{content:"";position:absolute;left:4px;top:.62em;width:7px;height:7px;background:var(--or);transform:rotate(45deg)}

  .rappel{margin:40px auto 0;max-width:680px;background:var(--nuit);color:#efe6d2;border-radius:6px;padding:26px 30px;text-align:center}
  .rappel .kicker{color:var(--or)}
  .rappel p{margin:10px 0 0;font-style:italic;font-size:20px}

  .usage{max-width:680px;margin:34px auto 0;text-align:center;color:var(--gris);font-size:16px}
  .usage p{margin:0 0 6px}

  footer{border-top:1px solid var(--filet);margin-top:44px;padding:26px 20px 36px;text-align:center;color:var(--gris);font-family:Poppins,Arial,sans-serif;font-size:12px;line-height:1.8}
  footer a{color:var(--gris)}

  /* --- formulaire d'inscription --- */
  .inscription{max-width:560px;margin:34px auto 0;background:#fff;border:1px solid var(--filet);border-top:3px solid var(--or);border-radius:6px;padding:30px 30px 26px}
  .inscription .kicker{color:var(--or);font-size:10px;text-align:center}
  .inscription h2{font-weight:500;font-size:28px;line-height:1.15;margin:8px 0 18px;text-align:center}
  .champ{margin:0 0 16px}
  .champ label{display:block;font-family:Poppins,Arial,sans-serif;font-size:12px;font-weight:500;letter-spacing:.06em;color:var(--gris);margin:0 0 6px}
  .champ input[type=email],.champ input[type=text]{width:100%;font:inherit;font-size:18px;padding:11px 14px;border:1px solid #cfc6b3;border-radius:4px;background:#fffdf9;color:var(--encre)}
  .champ input:focus{outline:2px solid var(--or);outline-offset:1px;border-color:var(--or)}
  .radios{display:flex;gap:18px;flex-wrap:wrap;font-size:17px}
  .radios label{font-family:inherit;font-size:17px;letter-spacing:0;color:var(--encre);display:flex;align-items:center;gap:7px;cursor:pointer;margin:0}
  .accord{display:flex;gap:10px;align-items:flex-start;font-size:16px;line-height:1.45;margin:6px 0 20px;color:#2c3a4f}
  .accord input{margin-top:4px;width:17px;height:17px;flex:none;accent-color:var(--nuit)}
  .inscription button[type=submit]{width:100%;border:0;cursor:pointer;font-family:Poppins,Arial,sans-serif;font-size:15px;font-weight:500;background:var(--nuit);color:#f6efe0;padding:15px 18px;border-radius:4px}
  .inscription button[type=submit]:hover,.inscription button[type=submit]:focus-visible{background:var(--nuit2)}
  .discret{font-size:14.5px;color:var(--gris);text-align:center;margin:16px 0 0;line-height:1.45}
  .erreur{background:#fbeeee;border:1px solid #e6c2c2;color:#7a2424;border-radius:4px;padding:10px 14px;font-size:16px;margin:0 0 16px}
  .pot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
  .bonjour{text-align:center;color:var(--gris);font-size:16px;margin:-4px 0 0}