:root{
  --bg:#ffffff;
  --surface:#f7f7f5; /* blanc légèrement cassé */
  --text:#111827;
  --muted:#6b7280;
  --brand:#0f5e78;
  --ok:#10b981;
  --err:#ef4444;
  --line:rgba(17,24,39,.10);
  --shadow:0 0 5px rgba(17,24,39,.10);
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{color:inherit}
.container{max-width:1100px;margin:0 auto;padding:24px}
.topbar{position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:10}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand__logo{height:44px;width:auto;display:block;shape-rendering:geometricPrecision}
.brand__text{display:inline-block}
.nav{display:flex;gap:14px;flex-wrap:wrap}
.nav a{text-decoration:none;color:var(--muted)}
.nav a:hover{color:var(--text)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.grid{display:grid;gap:16px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:900px){.grid--2{grid-template-columns:1fr}}
.h1{font-size:32px;margin:0 0 12px}
.muted{color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:10px 14px;border:1px solid var(--line);background:#fff;color:var(--text);text-decoration:none;cursor:pointer;box-shadow:0 10px 30px rgba(17,24,39,.06)}
.btn--brand{background:var(--brand);border-color:rgba(15,94,120,.25);color:#fff;box-shadow:0 14px 34px rgba(15,94,120,.22)}
.btn--brand:hover{filter:brightness(1.02)}
.btn--danger{background:rgba(239,68,68,.15);border-color:rgba(239,68,68,.35)}
.btn--ghost{background:transparent}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.field{display:flex;flex-direction:column;gap:6px}
.field>label{font-size:13px;color:var(--muted)}
input:not([type="checkbox"]):not([type="radio"]):not([type="file"]):not([type="range"]):not([type="color"]):not([type="submit"]):not([type="button"]):not([type="reset"]),textarea,select{width:100%;padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--text);outline:none;box-shadow:0 10px 30px rgba(17,24,39,.04)}
textarea{min-height:110px;resize:vertical}
input[type="checkbox"],input[type="radio"]{width:auto;flex:0 0 auto;margin:0;padding:0;border:0;background:transparent;box-shadow:none;accent-color:var(--brand);cursor:pointer}
.choice{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:12px;cursor:pointer;transition:border-color .15s,background .15s,box-shadow .15s}
.choice:hover{border-color:rgba(15,94,120,.35);background:#fafafa}
.choice:has(input:checked){border-color:var(--brand);background:rgba(15,94,120,.06);box-shadow:0 0 0 3px rgba(15,94,120,.12)}
.choice>input{margin-top:3px}
.choice>span{flex:1 1 auto;text-align:left;color:var(--text);font-size:15px;line-height:1.4}
.flash{margin:16px 0;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:var(--surface);box-shadow:0 10px 30px rgba(17,24,39,.06)}
.flash--success{border-color:rgba(16,185,129,.35);background:rgba(16,185,129,.10)}
.flash--error{border-color:rgba(239,68,68,.35);background:rgba(239,68,68,.10)}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.pill{display:inline-flex;padding:4px 10px;border-radius:999px;border:1px solid var(--line);color:var(--muted);font-size:12px}
.footer{border-top:1px solid var(--line);margin-top:28px}
.footer__inner{padding:18px 24px;color:var(--muted)}