/* =============================================================================
 * SERIGRAPHIE-BOUTIQUE — Inputs & Forms v0.2.0
 * =============================================================================
 * Dépendance : tokens.css
 *
 * Usages : search bar, formulaires contact, quantités produit, filtres PLP,
 * newsletter, connexion compte, etc.
 *
 * Accessibilité :
 * - Labels associés via <label for> (HTML) ou aria-label
 * - Focus ring visible
 * - Messages d'erreur liés via aria-describedby
 * - Touch targets 44px min
 * ============================================================================= */

/* ---------------------------------------------------------------------------
 * Container + label
 * ------------------------------------------------------------------------- */
.sb-field {
  display: flex;
  flex-direction: column;
  gap: var(--sb-sp-2);
  width: 100%;
}

.sb-field__label {
  font-size: var(--sb-fs-sm);
  font-weight: var(--sb-fw-medium);
  color: var(--sb-text-primary);
  letter-spacing: var(--sb-ls-normal);
}

.sb-field__hint {
  font-size: var(--sb-fs-xs);
  color: var(--sb-text-secondary);
  margin: 0;
}

.sb-field__error {
  font-size: var(--sb-fs-xs);
  color: var(--sb-color-danger);
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--sb-sp-1);
}

.sb-field--required .sb-field__label::after {
  content: " *";
  color: var(--sb-color-danger);
}

/* ---------------------------------------------------------------------------
 * Input de base (text, email, tel, number, password, url)
 * ------------------------------------------------------------------------- */
.sb-input {
  display: block;
  width: 100%;
  min-height: 44px;
  padding: var(--sb-sp-3) var(--sb-sp-4);

  font-family: var(--sb-font-sans);
  font-size: var(--sb-fs-sm);
  font-weight: var(--sb-fw-regular);
  line-height: var(--sb-lh-normal);
  color: var(--sb-text-primary);

  background-color: var(--sb-color-paper);
  border: 1px solid var(--sb-color-cendre);
  border-radius: var(--sb-radius-sm);
  box-shadow: none;

  transition:
    border-color var(--sb-duration-fast) var(--sb-ease-out),
    box-shadow var(--sb-duration-fast) var(--sb-ease-out);
}

.sb-input::placeholder {
  color: var(--sb-text-tertiary);
  opacity: 1;
}

.sb-input:hover:not(:disabled):not(:focus) {
  border-color: var(--sb-color-graphite);
}

.sb-input:focus {
  outline: none;
  border-color: var(--sb-color-accent);
  box-shadow: var(--sb-shadow-focus);
}

.sb-input:disabled {
  background-color: var(--sb-color-cendre-soft);
  color: var(--sb-text-tertiary);
  cursor: not-allowed;
}

.sb-input[aria-invalid="true"],
.sb-input.is-invalid {
  border-color: var(--sb-color-danger);
}

.sb-input[aria-invalid="true"]:focus,
.sb-input.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(196, 43, 56, 0.3);
}

/* ---------------------------------------------------------------------------
 * Input avec icône à gauche (search bar)
 * ------------------------------------------------------------------------- */
.sb-input-group {
  position: relative;
  width: 100%;
}

.sb-input-group__icon {
  position: absolute;
  left: var(--sb-sp-3);
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--sb-text-secondary);
  pointer-events: none;
  z-index: var(--sb-z-raised);
}

.sb-input-group__icon--right {
  left: auto;
  right: var(--sb-sp-3);
}

.sb-input-group .sb-input {
  padding-left: calc(var(--sb-sp-4) + 20px);
}

.sb-input-group:has(.sb-input-group__icon--right) .sb-input {
  padding-right: calc(var(--sb-sp-4) + 20px);
}

/* ---------------------------------------------------------------------------
 * Textarea
 * ------------------------------------------------------------------------- */
.sb-textarea {
  /* Hérite de .sb-input */
  display: block;
  width: 100%;
  min-height: 120px;
  padding: var(--sb-sp-3) var(--sb-sp-4);
  resize: vertical;

  font-family: var(--sb-font-sans);
  font-size: var(--sb-fs-sm);
  line-height: var(--sb-lh-relaxed);
  color: var(--sb-text-primary);

  background-color: var(--sb-color-paper);
  border: 1px solid var(--sb-color-cendre);
  border-radius: var(--sb-radius-sm);

  transition:
    border-color var(--sb-duration-fast) var(--sb-ease-out),
    box-shadow var(--sb-duration-fast) var(--sb-ease-out);
}

.sb-textarea:focus {
  outline: none;
  border-color: var(--sb-color-accent);
  box-shadow: var(--sb-shadow-focus);
}

/* ---------------------------------------------------------------------------
 * Select (via dropdown natif stylé)
 * ------------------------------------------------------------------------- */
.sb-select {
  /* Hérite des règles .sb-input + custom chevron */
  display: block;
  width: 100%;
  min-height: 44px;
  padding: var(--sb-sp-3) var(--sb-sp-8) var(--sb-sp-3) var(--sb-sp-4);

  font-family: var(--sb-font-sans);
  font-size: var(--sb-fs-sm);
  color: var(--sb-text-primary);

  background-color: var(--sb-color-paper);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2344464A' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--sb-sp-4) center;
  background-size: 12px;

  border: 1px solid var(--sb-color-cendre);
  border-radius: var(--sb-radius-sm);
  appearance: none;
  cursor: pointer;

  transition:
    border-color var(--sb-duration-fast) var(--sb-ease-out),
    box-shadow var(--sb-duration-fast) var(--sb-ease-out);
}

.sb-select:focus {
  outline: none;
  border-color: var(--sb-color-accent);
  box-shadow: var(--sb-shadow-focus);
}

/* ---------------------------------------------------------------------------
 * Checkbox + Radio (custom)
 * ------------------------------------------------------------------------- */
.sb-checkbox,
.sb-radio {
  display: inline-flex;
  align-items: flex-start;
  gap: var(--sb-sp-3);
  cursor: pointer;
  user-select: none;
  font-size: var(--sb-fs-sm);
  color: var(--sb-text-primary);
  line-height: var(--sb-lh-normal);
}

.sb-checkbox input[type="checkbox"],
.sb-radio input[type="radio"] {
  appearance: none;
  width: 18px;
  height: 18px;
  margin: 0;
  flex-shrink: 0;
  background-color: var(--sb-color-paper);
  border: 1.5px solid var(--sb-color-cendre);
  cursor: pointer;
  position: relative;
  transition:
    background-color var(--sb-duration-fast) var(--sb-ease-out),
    border-color var(--sb-duration-fast) var(--sb-ease-out);
}

.sb-checkbox input[type="checkbox"] {
  border-radius: var(--sb-radius-sm);
}

.sb-radio input[type="radio"] {
  border-radius: var(--sb-radius-pill);
}

.sb-checkbox input[type="checkbox"]:hover,
.sb-radio input[type="radio"]:hover {
  border-color: var(--sb-color-graphite);
}

.sb-checkbox input[type="checkbox"]:focus-visible,
.sb-radio input[type="radio"]:focus-visible {
  outline: none;
  box-shadow: var(--sb-shadow-focus);
}

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

.sb-checkbox input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 9px;
  border: solid var(--sb-color-ink);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.sb-radio input[type="radio"]:checked::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  border-radius: var(--sb-radius-pill);
  background-color: var(--sb-color-ink);
}

/* ---------------------------------------------------------------------------
 * Helper : stack de champs verticaux
 * ------------------------------------------------------------------------- */
.sb-form-stack {
  display: flex;
  flex-direction: column;
  gap: var(--sb-sp-5);
}

/* Helper : grid 2 colonnes (desktop) */
.sb-form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sb-sp-5);
}

@media (min-width: 768px) {
  .sb-form-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .sb-form-grid__full {
    grid-column: 1 / -1;
  }
}