:root {
  --client-bg: #f8fafc;
  --client-card: #fff;
  --client-primary: #2563eb;
  --client-primary-dark: #1d4ed8;
  --client-success: #16a34a;
  --client-warning: #f59e0b;
  --client-danger: #dc2626;
  --client-text: #111827;
  --client-muted: #6b7280;
  --client-border: #e5e7eb;
  --client-radius: 16px;
  --client-shadow: 0 10px 30px rgba(15, 23, 42, .05);
  --client-shadow-hover: 0 18px 42px rgba(15, 23, 42, .11);
  --client-transition: .25s ease;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.client-app { margin: 0; min-width: 320px; background: var(--client-bg); color: var(--client-text); font-family: Inter, ui-sans-serif, system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
button, input, textarea, select { font: inherit; }
a { color: inherit; }
:focus-visible { outline: 3px solid rgba(37, 99, 235, .35); outline-offset: 3px; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 1000; transform: translateY(-160%); background: #fff; padding: 10px 14px; border-radius: 10px; }
.skip-link:focus { transform: translateY(0); }
.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important; }
.client-main { width: min(1400px, calc(100% - 48px)); margin: 0 auto; padding: 32px 0 48px; }
.client-footer { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; padding: 8px 24px 32px; color: var(--client-muted); font-size: 13px; }
.client-footer span { display: inline-flex; align-items: center; gap: 6px; }
.btn { border-radius: 12px; padding: 11px 16px; min-height: 42px; font-weight: 650; transition: transform var(--client-transition), box-shadow var(--client-transition), background var(--client-transition), border-color var(--client-transition); }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0) scale(.98); }
.btn.btn-sm { min-height: 36px; padding: 8px 12px; }
.btn i { margin-right: 6px; font-size: 17px; vertical-align: -2px; }
.btn-rouge { border-color: transparent !important; background: linear-gradient(135deg, var(--client-primary), #3b82f6) !important; color: #fff !important; box-shadow: 0 8px 18px rgba(37, 99, 235, .22); }
.btn-rouge:hover { box-shadow: 0 12px 24px rgba(37, 99, 235, .3); }
.btn-ghost { background: #fff !important; border: 1px solid var(--client-border) !important; color: #374151 !important; }
.btn-ghost:hover { background: #f8fafc !important; border-color: #cbd5e1 !important; }
.hint { color: var(--client-muted) !important; line-height: 1.55; }
@media (max-width: 720px) { .client-main { width: min(100% - 28px, 1400px); padding-top: 22px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } }
@media (prefers-color-scheme: dark) {
  :root { --client-bg: #0b1120; --client-card: #111827; --client-text: #f8fafc; --client-muted: #94a3b8; --client-border: #263244; --client-shadow: 0 10px 30px rgba(0, 0, 0, .22); }
  .btn-ghost { background: #172033 !important; color: #e5e7eb !important; border-color: #334155 !important; }
}

/* ==========================================================================
   v2.55.0 — Cohérence des couleurs de base de l'espace client
   ========================================================================== */
/* Le halo de focus doit rester visible dans les deux thèmes. */
:focus-visible { outline: 3px solid rgba(96, 165, 250, .55); outline-offset: 3px; }
/* Sélection de texte lisible sur fond clair comme sur fond sombre. */
::selection { background: rgba(37, 99, 235, .28); color: inherit; }
/* Les liens du corps de page suivent la couleur principale plutôt que
   d'hériter d'un noir peu contrasté sur fond sombre. */
body.client-app a:not(.btn):not(.client-brand) { color: var(--client-primary); }
body.client-app .hint { color: var(--client-muted); }

@media (prefers-color-scheme: dark) {
  /* Palette sombre complétée : surfaces secondaires et boutons blancs figés. */
  :root { --client-primary: #3b82f6; --client-primary-dark: #60a5fa; }
  body.client-app a:not(.btn):not(.client-brand) { color: #93c5fd; }
  body.client-app { background: var(--client-bg); color: var(--client-text); }
  .skip-link { background: #111827; color: #f8fafc; border: 1px solid #334155; }
  .btn-ghost { background: #172033 !important; color: #e5e7eb !important; border-color: #334155 !important; }
  .btn-ghost:hover { background: #1e293b !important; border-color: #475569 !important; }
  .client-footer { color: var(--client-muted); }
  ::selection { background: rgba(96, 165, 250, .35); color: #f8fafc; }
}

/* Consultation de l'espace client par un administrateur — lecture seule. */
.client-admin-preview {
  position: sticky;
  top: 0;
  z-index: 220;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 10px max(18px, 4vw);
  border-bottom: 1px solid #bfdbfe;
  background: #eff6ff;
  color: #1e3a8a;
  box-shadow: 0 4px 14px rgba(30, 58, 138, .08);
}
.client-admin-preview-label,
.client-admin-preview-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.client-admin-preview-label > i { font-size: 21px; }
.client-admin-preview-label > span { color: #475569; font-size: 12px; }
.client-admin-preview-nav .btn {
  min-height: 36px;
  padding: 7px 11px;
  border-color: #bfdbfe !important;
  background: #fff !important;
}
.client-admin-preview-nav .btn i { margin-right: 4px; }
.client-admin-mini-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: #eff6ff;
  color: #1d4ed8;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}
.client-admin-preview-mode form button,
.client-admin-preview-mode form input,
.client-admin-preview-mode form select,
.client-admin-preview-mode form textarea {
  cursor: not-allowed;
}

@media (max-width: 760px) {
  .client-admin-preview {
    position: relative;
    align-items: stretch;
    flex-direction: column;
    padding: 10px 12px;
  }
  .client-admin-preview-nav {
    display: grid;
    grid-template-columns: 1fr;
  }
  .client-admin-preview-nav .btn { width: 100%; text-align: center; }
  .client-admin-mini-badge { display: none; }
}