/* Todo WhatsApp — socle commun */

:root{
  --paper:#FAFAF7;
  --card:#FFFFFF;
  --ink:#10201A;
  --muted:#5F6F68;
  --line:rgba(16,32,26,.12);
  --line-soft:rgba(16,32,26,.06);
  --brand:#0B7A5A;
  --brand-ink:#075E45;
  --brand-soft:#E7F3EE;
  --danger:#B3261E;
  --shadow:0 1px 2px rgba(16,32,26,.05), 0 8px 24px -12px rgba(16,32,26,.18);
  --r:14px;
  --r-lg:22px;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

@media (prefers-color-scheme: dark){
  :root{
    --paper:#0E1412;
    --card:#161E1B;
    --ink:#E8EFEB;
    --muted:#93A29B;
    --line:rgba(232,239,235,.14);
    --line-soft:rgba(232,239,235,.07);
    --brand:#35C79A;
    --brand-ink:#35C79A;
    --brand-soft:#17302A;
    --danger:#F2857C;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.6);
  }
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2.5px solid var(--brand);outline-offset:2px;border-radius:6px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  min-height:52px;padding:0 1.25rem;
  border-radius:100px;border:1px solid transparent;
  background:var(--brand);color:#fff;
  font-size:1rem;font-weight:650;letter-spacing:-.01em;
  text-decoration:none;
  transition:transform .12s ease, filter .12s ease;
}
@media (prefers-color-scheme: dark){ .btn{color:#06120E} }
.btn:active{transform:scale(.98)}
.btn:hover{filter:brightness(1.06)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{background:var(--line-soft);filter:none}
.btn--block{width:100%}

.field{
  width:100%;min-height:52px;
  padding:.75rem 1rem;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r);
  outline:none;
  transition:border-color .12s ease, box-shadow .12s ease;
}
.field:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.field::placeholder{color:var(--muted);opacity:.85}

.wrap{width:100%;max-width:640px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* Bandeau de confirmation (copie du lien, etc.) */
.toast{
  position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom));
  transform:translate(-50%,140%);
  background:var(--ink);color:var(--paper);
  padding:.7rem 1.1rem;border-radius:100px;
  font-size:.95rem;font-weight:600;
  box-shadow:var(--shadow);z-index:90;
  transition:transform .28s cubic-bezier(.2,.9,.3,1.2), opacity .2s ease;
  pointer-events:none;
  opacity:0;
}
.toast.on{transform:translate(-50%,0);opacity:1}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}