:root{
  --ink:#0a0d11;
  --panel:#10161d;
  --panel-2:#151d25;
  --line:rgba(255,255,255,.09);
  --teal:#00ccfe;
  --red:#c1392c;
  --paper:#eef2f4;
  --muted:#8fa0a9;
  --ok:#3ecf8e;
}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:radial-gradient(1200px 600px at 50% -10%,#0c252b 0%,var(--ink) 60%);color:var(--paper);font-family:'Inter',sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased;display:flex;justify-content:center;align-items:flex-start;padding:40px 16px}
.card{width:100%;max-width:520px}
.logo{display:block;width:72px;margin:0 auto 18px}
.eyebrow{display:block;text-align:center;font-family:'Space Grotesk',sans-serif;font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--teal);font-weight:600;margin-bottom:8px}
h1{font-family:'Space Grotesk',sans-serif;font-size:28px;line-height:1.15;text-align:center;margin:0 0 10px;color:#fff;letter-spacing:-.01em}
.lead{text-align:center;color:var(--muted);font-size:15px;margin:0 0 28px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px}
label{display:block;font-size:14px;font-weight:600;margin:0 0 6px}
.hint{font-size:13px;color:var(--muted);font-weight:400}
input,select{width:100%;color-scheme:dark;min-height:48px;font:inherit;font-size:16px;color:#fff;background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:16px;outline:none}
input:focus,select:focus{border-color:var(--teal)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:480px){.row{grid-template-columns:1fr}}
.section{font-family:'Space Grotesk',sans-serif;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);margin:8px 0 12px}
button,.btn{display:block;width:100%;text-align:center;text-decoration:none;font-family:'Space Grotesk',sans-serif;font-size:16px;font-weight:600;border:0;border-radius:10px;padding:14px;cursor:pointer;transition:opacity .2s}
button:disabled{opacity:.5;cursor:default}
.primary{background:var(--red);color:#fff}
.secondary{background:transparent;color:var(--muted);border:1px solid var(--line);margin-top:10px}
.msg{margin-top:16px;font-size:15px;text-align:center}
.msg.ok{color:var(--ok)}
.msg.err{color:#ff7b6e}
.hidden{display:none !important}
.case{display:flex;align-items:center;gap:12px;font-weight:500;margin:0 0 18px;cursor:pointer}
.case input{width:24px;height:24px;min-height:0;margin:0;accent-color:var(--teal)}
.nip-fond{position:fixed;inset:0;z-index:20;background:rgba(5,8,11,.85);display:flex;align-items:center;justify-content:center;padding:16px}
.nip-boite{width:100%;max-width:380px;text-align:center}
.nip-boite input{text-align:center;font-size:28px;letter-spacing:.3em;margin-top:8px}
.ac{position:relative}
.ac-liste{position:absolute;z-index:5;left:0;right:0;top:calc(100% - 12px);margin:0;padding:6px;list-style:none;background:var(--panel-2);border:1px solid var(--teal);border-radius:10px;box-shadow:0 12px 30px rgba(0,0,0,.5)}
.ac-liste li{padding:12px 14px;border-radius:8px;cursor:pointer;font-size:16px}
.ac-liste li.on,.ac-liste li:hover{background:rgba(0,204,254,.12)}
@media (min-width:700px){.ac-liste{top:calc(100% - 18px)}.ac-liste li{font-size:19px;padding:16px}}

/* iPad en plein écran : tout plus gros, plus facile au doigt. */
@media (min-width:700px){
  body{font-size:18px;padding:56px 32px}
  .card{max-width:760px}
  .logo{width:104px}
  .eyebrow{font-size:16px}
  h1{font-size:44px}
  .lead{font-size:19px}
  .panel{padding:36px;border-radius:20px}
  label{font-size:17px}
  input,select{min-height:62px;font-size:20px;border-radius:12px;margin-bottom:22px}
  .row{gap:18px}
  .section{font-size:15px;margin:12px 0 16px}
  button,.btn{font-size:21px;padding:20px;border-radius:12px}
  .msg{font-size:18px}
}

.retour{position:fixed;top:16px;left:16px;z-index:10;color:var(--muted);text-decoration:none;font-size:15px;padding:10px 14px;border:1px solid var(--line);border-radius:10px;background:rgba(16,22,29,.8)}
.retour:hover{color:#fff;border-color:var(--teal)}
@media (min-width:700px){.retour{font-size:18px;padding:12px 18px;top:24px;left:24px}}