/* Layout page */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
  background: var(--bg);
}

.auth-container {
  width: 100%;
  max-width: 640px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 2.5rem;
}

/* Header */
.auth-header {
  margin-bottom: 2rem;
  text-align: center;
}

.auth-header h1 {
  font-size: 1.625rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.375rem;
}

.auth-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 300;
}

/* Sections */
.form-section {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.375rem;
  margin-bottom: 1.25rem;
}

.form-section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1.125rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.form-section-title i {
  color: var(--accent);
  font-size: 1rem;
}

.form-section-title-sm {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  margin-top: 0.25rem;
}

/* Rows */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.875rem;
}

.form-row-matricule {
  grid-template-columns: 1fr 1fr 1fr;
}

/* Champs */
.form-group {
  margin-bottom: 0.875rem;
}

.form-group:last-child {
  margin-bottom: 0;
}

/* Erreurs et succès inline */
.field-error {
  font-size: 0.75rem;
  color: var(--danger);
  margin-top: 0.25rem;
  display: block;
  min-height: 1rem;
}

.field-success {
  font-size: 0.75rem;
  color: var(--success);
  margin-top: 0.25rem;
  display: block;
  min-height: 1rem;
}

.form-control.is-error {
  border-color: var(--danger);
}

.form-control.is-success {
  border-color: var(--success);
}

/* Required */
.required {
  color: var(--accent);
  margin-left: 2px;
}

/* Password */
.input-password {
  position: relative;
}

.input-password .form-control {
  padding-right: 2.75rem;
}

.toggle-password {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  transition: color var(--transition);
  padding: 0;
}

.toggle-password:hover {
  color: var(--accent);
}

/* Force mot de passe */
.password-strength {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-top: 0.5rem;
}

.strength-bars {
  display: flex;
  gap: 4px;
  flex: 1;
}

.bar {
  height: 3px;
  flex: 1;
  border-radius: 99px;
  background: var(--border);
  transition: background var(--transition);
}

.bar.weak { background: var(--danger); }
.bar.medium { background: var(--amber, #f59e0b); }
.bar.strong { background: var(--success); }

.strength-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 60px;
  text-align: right;
}

/* Aperçu matricule */
.matricule-preview {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.875rem;
  padding: 0.625rem 0.875rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.preview-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.preview-value {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
  font-family: monospace;
  letter-spacing: 0.05em;
}

/* Submit */
#submitBtn {
  width: 100%;
  justify-content: center;
  padding: 0.75rem;
  font-size: 0.9375rem;
  margin-top: 0.5rem;
}

.btn-back {
  position: fixed;
  top: 1.25rem;
  left: 1.25rem;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0 0.875rem;
  height: 40px;
  border-radius: 0px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.btn-back:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--surface2);
}

/* Responsivité */
@media (max-width: 768px) {
  .auth-container {
    padding: 1.75rem 1.25rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-row-matricule {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .auth-page {
    padding: 1rem 0.75rem;
    align-items: flex-start;
  }

  .form-row-matricule {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1600px) {
  .auth-container {
    max-width: 720px;
  }
}