:root{
  --brand-900:#131f38; --brand:#1c2d4f; --brand-600:#2a4173; --brand-50:#e9eef8;
  --ink:#161d2b; --ink-soft:#5b6779; --line:#dde3ee; --bg:#f1f4f9; --card:#ffffff;
  --ok:#0f7a56; --warn:#8a5a09; --danger:#b4442f; --radius:14px;
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink); min-height:100vh;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px; line-height:1.55; -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-600)}

/* ---------- Layout ---------- */
.topbar{background:var(--brand-900); padding:18px 20px}
.topbar .wrap{max-width:760px;margin:0 auto}
.topbar .wrap.wide{max-width:1180px}
.topbar img{display:block;height:30px;width:auto}
.topbar .baseline{color:#a8bad9;font-size:12px;letter-spacing:.3px;margin-top:7px}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
main.wrap{padding-top:28px;padding-bottom:56px}
.wide{max-width:1180px}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin-bottom:20px}
@media(max-width:560px){.card{padding:20px 16px}}

h1{font-size:26px;line-height:1.25;margin:0 0 10px;letter-spacing:-.4px}
h2{font-size:15px;margin:0 0 14px;letter-spacing:.4px;text-transform:uppercase;color:var(--ink-soft);font-weight:600}
.lead{color:var(--ink-soft);margin:0 0 4px}
.eyebrow{font-size:12px;letter-spacing:1.4px;text-transform:uppercase;color:var(--brand-600);font-weight:700;margin:0 0 8px}

/* ---------- Récap devis ---------- */
.quotes{width:100%;border-collapse:collapse;font-size:15px}
.quotes th{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--ink-soft);text-align:left;padding:0 0 8px;font-weight:600}
.quotes td{padding:11px 0;border-top:1px solid var(--line);vertical-align:top}
.quotes .num{font-weight:600;color:var(--brand);white-space:nowrap}
.quotes .date{font-weight:400;color:var(--ink-soft);font-size:12px}
.quotes .amount{text-align:right;font-weight:600;white-space:nowrap}
.quotes tfoot td{border-top:2px solid var(--line);font-weight:700}
@media(max-width:560px){
  .quotes thead{display:none}
  .quotes tr{display:block;border-top:1px solid var(--line);padding:10px 0}
  .quotes td{display:block;border:0;padding:2px 0}
  .quotes .amount{text-align:left;color:var(--brand)}
  .quotes tfoot td{border-top:2px solid var(--line);padding-top:10px}
}

/* ---------- Formulaire ---------- */
fieldset{border:0;margin:0 0 26px;padding:0}
legend{font-size:17px;font-weight:600;margin-bottom:4px;padding:0}
.hint{color:var(--ink-soft);font-size:14px;margin:0 0 14px}

.options{display:grid;gap:10px}
.options.cols-2{grid-template-columns:1fr 1fr}
.options.cols-3{grid-template-columns:repeat(3,1fr)}
@media(max-width:560px){.options.cols-2,.options.cols-3{grid-template-columns:1fr}}

.opt{position:relative;display:block}
.opt input{position:absolute;opacity:0;width:1px;height:1px}
.opt span{
  display:flex;align-items:center;gap:11px;min-height:56px;
  border:1.5px solid var(--line);border-radius:11px;background:#fff;
  padding:12px 16px;cursor:pointer;transition:border-color .15s,background .15s,box-shadow .15s;
  font-weight:500;
}
.opt span::before{
  content:"";flex:0 0 20px;height:20px;border-radius:50%;border:2px solid #c2cbdb;transition:.15s;
}
.opt input:checked + span{border-color:var(--brand-600);background:var(--brand-50);box-shadow:0 0 0 3px rgba(42,65,115,.12)}
.opt input:checked + span::before{border-color:var(--brand-600);background:var(--brand-600);box-shadow:inset 0 0 0 4px #fff}
.opt input:focus-visible + span{outline:2px solid var(--brand-600);outline-offset:2px}
.opt em{display:block;font-style:normal;font-size:13px;color:var(--ink-soft);font-weight:400}

.conditional{margin-top:14px;padding-left:16px;border-left:3px solid var(--brand-50)}
.conditional[hidden]{display:none!important}

label.field{display:block;font-weight:500;margin:0 0 6px}
input[type=text],input[type=email],input[type=number],textarea,select{
  width:100%;font:inherit;color:inherit;background:#fff;
  border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;
}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(42,65,115,.12)}
textarea{min-height:96px;resize:vertical}

.check{display:flex;gap:11px;align-items:flex-start;cursor:pointer;font-size:15px}
.check input{margin-top:3px;width:18px;height:18px;accent-color:var(--brand-600)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;border:0;border-radius:11px;
  padding:16px 30px;font:inherit;font-weight:600;cursor:pointer;width:100%;
  transition:background .15s,transform .05s;text-decoration:none;
}
.btn:hover{background:var(--brand-600)}
.btn:active{transform:translateY(1px)}
.btn.secondary{background:transparent;color:var(--brand-600);border:1.5px solid var(--line);width:auto;padding:11px 20px}
.btn.secondary:hover{background:var(--brand-50)}
.btn.small{padding:7px 13px;font-size:13px;width:auto;border-radius:8px}

.error{background:#fdecea;border:1px solid #f3c6bd;color:var(--danger);border-radius:10px;padding:12px 14px;margin-bottom:18px;font-size:15px}
.notice{background:#e8f4ee;border:1px solid #bfe0cf;color:#155e3f;border-radius:10px;padding:12px 14px;margin-bottom:18px;font-size:15px}
.hp{position:absolute;left:-9999px}

.footer{color:var(--ink-soft);font-size:12.5px;text-align:center;line-height:1.7}
.footer a{color:var(--ink-soft)}

/* ---------- Confirmation ---------- */
.done{text-align:center;padding:16px 0 6px}
.done .tick{
  width:64px;height:64px;border-radius:50%;background:var(--brand-50);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:30px;font-weight:700
}
.recap{background:#f7f9fc;border:1px solid var(--line);border-radius:11px;padding:16px 18px;margin:20px 0;text-align:left;font-size:15px}
.recap dt{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--ink-soft);margin-top:10px}
.recap dt:first-child{margin-top:0}
.recap dd{margin:2px 0 0;font-weight:500}

/* ---------- Admin ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:22px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.stat b{display:block;font-size:24px;letter-spacing:-.5px}
.stat span{font-size:12px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.6px}
table.grid{width:100%;border-collapse:collapse;background:var(--card);font-size:14px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
table.grid th{background:#f7f9fc;text-align:left;padding:10px 12px;font-size:11px;letter-spacing:.7px;text-transform:uppercase;color:var(--ink-soft)}
table.grid td{padding:10px 12px;border-top:1px solid var(--line);vertical-align:top}
.tag{display:inline-block;white-space:nowrap;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600}
.tag.ok{background:#dff3e9;color:#0f5c43}
.tag.wait{background:#fdf1d8;color:#8a5a09}
.tag.no{background:#fbe3de;color:#9c3a26}
.tag.none{background:#eef1f6;color:#67748a}
.tag.due{background:var(--brand-50);color:var(--brand-600)}
.scroll{overflow-x:auto}
.adminbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.tabs{display:flex;gap:4px;flex-wrap:wrap}
.tabs a{display:inline-block;padding:9px 16px;border-radius:10px;text-decoration:none;font-weight:600;font-size:14px;color:var(--ink-soft)}
.tabs a:hover{background:var(--brand-50)}
.tabs a.on{background:var(--brand);color:#fff}
input[type=file]{width:100%;font:inherit;border:1.5px dashed var(--line);border-radius:10px;padding:11px 14px;background:#fff}
input[readonly]{background:#f7f9fc;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}
code{font-size:12.5px;background:var(--brand-50);padding:1px 5px;border-radius:5px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:18px}
.panel h3{margin:0 0 10px;font-size:14px;text-transform:uppercase;letter-spacing:.7px;color:var(--ink-soft)}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.row > div{flex:1 1 200px}
.row .btn{width:auto}
.muted{color:var(--ink-soft);font-size:12.5px}

@media (prefers-color-scheme:dark){
  :root{
    --ink:#e9edf5; --ink-soft:#9aa7bd; --line:#28324a; --bg:#0d1220; --card:#151c2d;
    --brand-50:#1b2740; --brand-600:#8fa8dd; color-scheme:dark;
  }
  .opt span,input[type=file]{background:#111827}
  .tabs a.on{background:var(--brand-600);color:#0d1220}
  input[readonly]{background:#111827}
  input[type=text],input[type=email],input[type=number],textarea,select{background:#111827}
  table.grid th,.recap{background:#111827}
  .error{background:#3a1c17;border-color:#6a2f24;color:#f0b4a6}
  .notice{background:#12291f;border-color:#215e42;color:#a8dcc2}
  .btn{background:var(--brand-600);color:#0d1220}
  .btn:hover{background:#a9bfe9}
  .btn.secondary{background:transparent;color:var(--brand-600)}
}