*{box-sizing:border-box;margin:0;padding:0}
:root{
  --ink:#1a2233;--muted:#5b6577;--accent:#1d4ed8;--accent-dark:#173db0;
  --bg:#f7f8fb;--card:#ffffff;--line:#e3e7ef;--ok:#0a7d33;
}
body{font-family:Georgia,"Times New Roman",serif;color:var(--ink);background:var(--bg);line-height:1.6}
main{max-width:880px;margin:0 auto;padding:2rem 1.2rem 4rem}
.site-header{display:flex;align-items:baseline;gap:1rem;padding:1.1rem 1.4rem;background:var(--card);border-bottom:1px solid var(--line)}
.logo{font-size:1.45rem;font-weight:bold;color:var(--ink);text-decoration:none;letter-spacing:.5px}
.tagline{color:var(--muted);font-size:.95rem;font-style:italic}
.site-footer{max-width:880px;margin:0 auto;padding:2rem 1.2rem;color:var(--muted);font-size:.82rem;border-top:1px solid var(--line)}
.site-footer p{margin-bottom:.5rem}
.site-footer a{color:var(--muted)}
h1{font-size:2rem;line-height:1.25;margin-bottom:.6rem}
h2{font-size:1.25rem;margin:1.6rem 0 .6rem}
.lead{font-size:1.12rem;color:var(--muted);margin-bottom:1.6rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1rem;margin-top:1.4rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:1.1rem 1.2rem;text-decoration:none;color:var(--ink);display:block;transition:box-shadow .15s,transform .15s}
.card:hover{box-shadow:0 6px 18px rgba(26,34,51,.08);transform:translateY(-2px)}
.card h3{font-size:1.05rem;margin-bottom:.35rem}
.card p{font-size:.9rem;color:var(--muted)}
.card .prix{display:inline-block;margin-top:.6rem;font-weight:bold;color:var(--accent)}
form.letter-form{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:1.6rem;margin-top:1.2rem}
.field{margin-bottom:1.1rem}
.field label{display:block;font-weight:bold;font-size:.95rem;margin-bottom:.3rem}
.field .hint{font-weight:normal;color:var(--muted);font-size:.85rem}
input[type=text],input[type=email],input[type=date],textarea,select{
  width:100%;padding:.6rem .7rem;border:1px solid var(--line);border-radius:6px;
  font:inherit;font-size:.98rem;background:#fff;color:var(--ink)}
textarea{min-height:90px;resize:vertical}
input:focus,textarea:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.btn{display:inline-block;background:var(--accent);color:#fff;border:none;border-radius:8px;
  padding:.75rem 1.5rem;font:inherit;font-size:1.02rem;font-weight:bold;cursor:pointer;text-decoration:none}
.btn:hover{background:var(--accent-dark)}
.btn-wide{width:100%;text-align:center}
.preview-box{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:2rem;margin:1.2rem 0;position:relative;overflow:hidden}
.preview-text{white-space:pre-wrap;font-size:.98rem}
.preview-hidden{position:relative;filter:blur(6px);user-select:none;pointer-events:none}
.preview-fade{position:absolute;left:0;right:0;bottom:0;height:55%;background:linear-gradient(to bottom,rgba(247,248,251,0) 0%,var(--bg) 90%)}
.paybox{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:1.6rem;text-align:center}
.paybox img{width:220px;height:220px;image-rendering:pixelated}
.payinfo{margin:1rem auto;max-width:420px;text-align:left;font-size:.95rem}
.payinfo dt{font-weight:bold;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.4px;margin-top:.6rem}
.payinfo dd{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:1.02rem}
.notice{background:#eef4ff;border:1px solid #c9dbff;border-radius:8px;padding:.9rem 1.1rem;font-size:.92rem;margin:1rem 0}
.ok{color:var(--ok);font-weight:bold}
table.admin{width:100%;border-collapse:collapse;font-family:ui-monospace,Menlo,monospace;font-size:.82rem;background:var(--card)}
table.admin th,table.admin td{border:1px solid var(--line);padding:.45rem .6rem;text-align:left;vertical-align:top}
.steps{display:flex;gap:.6rem;flex-wrap:wrap;margin:1.2rem 0;color:var(--muted);font-size:.9rem}
.steps span{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:.35rem .9rem}
@media(max-width:600px){h1{font-size:1.5rem}.site-header{flex-direction:column;gap:.1rem}}