/* ==========================================================================
   COMPOSANTS FORMULAIRES — partagés entre tous les écrans
   ========================================================================== */

/* ---------- GROUPE DE CHAMP (label + input + helper) ---------- */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  width: 100%;
}

.field__label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-gray-dark);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.field__label-required {
  color: var(--color-accent);
  font-size: var(--fs-md);
  line-height: 1;
}

.field__helper {
  font-size: var(--fs-xs);
  color: var(--color-gray-light);
  line-height: 1.4;
}

.field__error {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-accent);
  font-weight: var(--fw-medium);
  line-height: 1.4;
  animation: field-error-in 200ms var(--ease-out);
}

.field__error svg {
  flex-shrink: 0;
  margin-top: 1px;
}

@keyframes field-error-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- INPUT TEXTE ---------- */

.input {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-4);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  color: var(--color-gray-dark);
  background: var(--color-surface);
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--dur-fast) var(--ease-out);
}

.input::placeholder {
  color: var(--color-gray-lighter);
}

.input:hover {
  border-color: var(--color-gray-light);
}

.input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.input--error,
.field.has-error .input {
  border-color: var(--color-accent);
}

.field.has-error .input:focus {
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.input--compact {
  height: 40px;
}

.input--large {
  height: 52px;
  font-size: var(--fs-md);
}

/* Input avec icône à gauche */
.input-wrap {
  position: relative;
  width: 100%;
}

.input-wrap .input {
  padding-left: 42px;
}

.input-wrap__icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-light);
  pointer-events: none;
}

.input-wrap:focus-within .input-wrap__icon {
  color: var(--color-primary);
}

/* Bouton œil pour afficher le mot de passe */
.input-wrap__toggle {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-light);
  transition: color var(--dur-fast) var(--ease-out);
}

.input-wrap__toggle:hover {
  color: var(--color-gray-dark);
}

/* ---------- CHECKBOX ---------- */

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
  font-size: var(--fs-sm);
  color: var(--color-gray-dark);
  line-height: 1.5;
}

.checkbox input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--color-gray-lighter);
  border-radius: var(--radius-xs);
  background: var(--color-surface);
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 2px;
  position: relative;
  transition: all var(--dur-fast) var(--ease-out);
}

.checkbox input[type="checkbox"]:hover {
  border-color: var(--color-primary);
}

.checkbox input[type="checkbox"]:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox__link {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.checkbox__link:hover {
  color: var(--color-primary-dark);
}

.field.has-error .checkbox input[type="checkbox"] {
  border-color: var(--color-accent);
}

/* ---------- BOUTONS ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-5);
  height: 44px;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  border-radius: var(--radius-md);
  transition: all var(--dur-fast) var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-surface);
  box-shadow: 0 1px 3px rgba(74, 144, 226, 0.2);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-gray-dark);
  border: 1px solid var(--color-gray-border);
}

.btn--secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.btn--ghost {
  background: transparent;
  color: var(--color-gray);
}

.btn--ghost:hover {
  background: var(--color-bg);
  color: var(--color-gray-dark);
}

.btn--full {
  width: 100%;
}

.btn--large {
  height: 52px;
  font-size: var(--fs-md);
  padding: 0 var(--space-6);
}

.btn--compact {
  height: 36px;
  font-size: var(--fs-sm);
  padding: 0 var(--space-4);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn[aria-busy="true"] {
  pointer-events: none;
  position: relative;
  color: transparent !important;
}

.btn[aria-busy="true"]::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: btn-spin 600ms linear infinite;
}

.btn--secondary[aria-busy="true"]::after {
  border-color: rgba(74, 144, 226, 0.25);
  border-top-color: var(--color-primary);
}

@keyframes btn-spin {
  to { transform: rotate(360deg); }
}

/* Shake du bouton quand validation échoue au clic */
@keyframes btn-shake {
  0%, 100% { transform: translateX(0); }
  15%, 45%, 75% { transform: translateX(-6px); }
  30%, 60%, 90% { transform: translateX(6px); }
}

.btn.is-shake {
  animation: btn-shake 400ms cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

/* ---------- LIEN INLINE ---------- */

.link {
  color: var(--color-primary);
  font-weight: var(--fw-medium);
  cursor: pointer;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
  font-family: inherit;
}

.link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.link--muted {
  color: var(--color-gray);
}

.link--muted:hover {
  color: var(--color-gray-dark);
}

/* ---------- SÉPARATEUR "OU" ---------- */

.separator {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-gray-light);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: var(--fw-medium);
  width: 100%;
}

.separator::before,
.separator::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-gray-border);
}