/* ============================================================
   auth.css — Clavier PIN et écran de connexion
   ============================================================ */

.auth-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  background: var(--c-bg);
  padding: 24px;
}

.auth-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  width: 100%;
  max-width: 340px;
}

/* --- Logo ------------------------------------------------- */
.auth-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-bottom: 4px;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: -0.03em;
}

.logo-tagline {
  font-size: 0.8125rem;
  color: var(--c-text-muted);
  font-weight: 500;
  letter-spacing: 0.01em;
}

/* --- PIN display ------------------------------------------ */
.pin-display {
  display: flex;
  gap: 16px;
  justify-content: center;
}

.pin-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--c-border);
  background: transparent;
  transition: background var(--transition), border-color var(--transition), transform 120ms ease;
}

.pin-dot--filled {
  background: var(--c-primary);
  border-color: var(--c-primary);
  transform: scale(1.1);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-6px); }
  40%       { transform: translateX(6px); }
  60%       { transform: translateX(-4px); }
  80%       { transform: translateX(4px); }
}

.pin-display--shake { animation: shake 0.45s ease; }

/* --- PIN label -------------------------------------------- */
.pin-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--c-text-muted);
  text-align: center;
  min-height: 20px;
  transition: color var(--transition);
}

.pin-label--error { color: var(--c-danger); }

/* --- PIN keyboard ----------------------------------------- */
.pin-keyboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  width: 100%;
}

.pin-key {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--c-secondary);
  background: var(--c-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--c-border-light);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), transform 80ms ease, box-shadow var(--transition);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.pin-key:active:not(.pin-key--empty) {
  background: var(--c-primary-light);
  transform: scale(0.93);
  box-shadow: none;
}

.pin-key--empty {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  cursor: default;
}

.pin-key--delete {
  font-size: 1.25rem;
  color: var(--c-text-muted);
}

.pin-key--delete:active {
  background: var(--c-danger-bg) !important;
  color: var(--c-danger) !important;
}

/* --- Auth spinner ----------------------------------------- */
.auth-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--c-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

/* ============================================================
   Panels multi-flux
   ============================================================ */

/* Zone panels — fade lors des transitions */
.auth-panels {
  width: 100%;
  transition: opacity 200ms ease;
}
.auth--fading { opacity: 0; pointer-events: none; }

/* Chaque panel est un flex-column centré */
.auth-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 100%;
}

/* --- Titres ----------------------------------------------- */
.auth-step-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-secondary);
  text-align: center;
  margin-bottom: 2px;
}

.auth-step-sub {
  font-size: 0.8125rem;
  color: var(--c-text-muted);
  text-align: center;
  margin-top: -8px;
  line-height: 1.5;
}

/* --- Greeting au-dessus du PIN ---------------------------- */
.pin-ctx-greeting {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-secondary);
  text-align: center;
  margin-bottom: 0;
}

/* Quand le greeting est présent, le titre passe en sous-titre */
.pin-ctx-greeting:not([hidden]) + .auth-step-title {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--c-text-muted);
  margin-bottom: 0;
}

/* --- Sélecteur de rôle ----------------------------------- */
.role-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: 100%;
}

.role-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 16px 10px;
  background: var(--c-surface);
  border: 2px solid var(--c-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, transform 80ms ease;
  -webkit-tap-highlight-color: transparent;
}

.role-btn:active        { transform: scale(0.96); }
.role-btn--active       { border-color: var(--c-primary); background: var(--c-primary-light); }

.role-btn__icon  { font-size: 2rem; line-height: 1; margin-bottom: 2px; }
.role-btn__label { font-family: var(--font-heading); font-size: 0.9375rem; font-weight: 700; color: var(--c-secondary); }
.role-btn__desc  { font-size: 0.6875rem; color: var(--c-text-muted); text-align: center; line-height: 1.35; }

/* Sélectionné : accentuer le label */
.role-btn--active .role-btn__label { color: var(--c-primary); }

/* --- Bouton lien texte ----------------------------------- */
.btn-link {
  background: none;
  border: none;
  color: var(--c-primary);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  padding: 8px 12px;
  text-align: center;
  transition: opacity var(--transition);
  opacity: 0.85;
}
.btn-link:hover { opacity: 1; text-decoration: underline; }