/* ── Pages d'authentification (login / register / 404) ── */
.auth-body {
  min-height: 100vh; display: grid; place-items: center;
  background:
    radial-gradient(900px 500px at 50% -20%, rgba(0, 212, 255, 0.05), transparent 60%),
    var(--bg);
  padding: 24px;
}
.auth-card {
  width: 400px; max-width: 100%;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 32px; box-shadow: var(--shadow-modal);
}
.auth-head { display: flex; flex-direction: column; align-items: center; gap: 12px; margin-bottom: 26px; text-align: center; }
.auth-head .logo { width: 40px; height: 40px; border-radius: 11px; font-size: 19px; }
.auth-head h1 { font-size: 17px; }
.auth-head p { font-size: 12px; color: var(--text-3); }
.auth-form { display: flex; flex-direction: column; gap: 14px; }
.auth-form .btn { width: 100%; height: 38px; }
.auth-foot { margin-top: 20px; text-align: center; font-size: 12px; color: var(--text-3); }
.auth-foot a { color: var(--accent); }
.auth-err {
  display: none; margin-bottom: 14px; padding: 9px 11px; border-radius: 7px;
  background: var(--danger-dim); border: 1px solid rgba(255, 61, 87, 0.3);
  color: #ff9aa9; font-size: 12px;
}
.auth-err.show { display: block; }
.auth-note { margin-top: 18px; font-size: 11px; color: var(--text-3); text-align: center; line-height: 1.6; }