/* ============================================================================
   LAMARTINE — COMPONENTE: FORMULARIOS
   ============================================================================
   Inputs, selects, textareas, labels, validación visual, radios, checkboxes.
   
   USO:
     <div class="form-field">
       <label class="form-label" for="email">Email</label>
       <input class="form-input" type="email" id="email">
       <span class="form-hint">Nunca compartimos tu email</span>
     </div>
   ============================================================================ */


/* ============================================================================
   FIELD (contenedor de campo)
   ============================================================================ */

.form-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

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

.form-field--horizontal {
    flex-direction: row;
    align-items: center;
    gap: var(--space-4);
}


/* ============================================================================
   LABEL
   ============================================================================ */

.form-label {
    display: block;
    font-family: var(--font-body);
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    color: var(--color-tierra);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
}

.form-label--required::after {
    content: '*';
    color: var(--color-oferta);
    margin-left: 2px;
}


/* ============================================================================
   INPUT / TEXTAREA / SELECT
   ============================================================================ */

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    height: var(--input-height);
    padding: 0 var(--space-4);
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--color-negro);
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    line-height: 1.4;
    transition: var(--transition-fast);
    border-radius: var(--radius-none);
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--input-border-focus);
    box-shadow: 0 0 0 3px rgba(139, 111, 71, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-gris-medio);
}


/* --- TEXTAREA --- */
.form-textarea {
    height: auto;
    min-height: 120px;
    padding: var(--space-3) var(--space-4);
    resize: vertical;
    line-height: var(--lh-normal);
}


/* --- SELECT --- */
.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B5B47' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    background-size: 18px;
    padding-right: var(--space-10);
    cursor: pointer;
}


/* ============================================================================
   ESTADOS
   ============================================================================ */

/* --- DISABLED --- */
.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    background: var(--color-beige-claro);
    color: var(--color-gris-medio);
    cursor: not-allowed;
    opacity: 0.7;
}


/* --- ERROR --- */
.form-field.has-error .form-input,
.form-field.has-error .form-select,
.form-field.has-error .form-textarea,
.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
    border-color: var(--color-error);
    background: var(--color-error-bg);
}

.form-field.has-error .form-input:focus,
.form-input.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(158, 75, 62, 0.1);
}


/* --- SUCCESS --- */
.form-field.has-success .form-input,
.form-input.is-valid {
    border-color: var(--color-exito);
}


/* ============================================================================
   TEXTOS AUXILIARES
   ============================================================================ */

/* Hint (texto explicativo debajo del input) */
.form-hint {
    font-size: var(--fs-xs);
    color: var(--color-gris-medio);
    line-height: var(--lh-snug);
}

/* Mensaje de error */
.form-error {
    font-size: var(--fs-xs);
    color: var(--color-error);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    min-height: 1.2em;
}

/* Mensaje de éxito */
.form-success {
    font-size: var(--fs-xs);
    color: var(--color-exito);
}


/* ============================================================================
   INPUT CON ÍCONO / PREFIJO
   ============================================================================ */

.form-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input-wrap .form-input {
    width: 100%;
}

.form-input-wrap__icon {
    position: absolute;
    left: var(--space-3);
    color: var(--color-gris-medio);
    pointer-events: none;
    width: 18px;
    height: 18px;
}

.form-input-wrap .form-input--has-icon {
    padding-left: calc(var(--space-3) * 2 + 18px);
}

.form-input-wrap__action {
    position: absolute;
    right: var(--space-2);
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gris-medio);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
}

.form-input-wrap__action:hover {
    color: var(--color-negro);
}


/* Prefijo (ej: $) */
.form-input-wrap__prefix {
    position: absolute;
    left: var(--space-3);
    color: var(--color-tierra);
    font-size: var(--fs-sm);
    pointer-events: none;
}

.form-input-wrap .form-input--has-prefix {
    padding-left: var(--space-8);
}


/* ============================================================================
   CHECKBOX
   ============================================================================ */

.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    cursor: pointer;
    user-select: none;
}

.form-check__input {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--color-taupe);
    background: var(--color-blanco);
    cursor: pointer;
    flex-shrink: 0;
    margin-top: 2px;
    position: relative;
    transition: var(--transition-fast);
}

.form-check__input:hover {
    border-color: var(--color-negro);
}

.form-check__input:checked {
    background: var(--color-negro);
    border-color: var(--color-negro);
}

.form-check__input:checked::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 5px;
    width: 5px;
    height: 9px;
    border: solid var(--color-blanco);
    border-width: 0 1.5px 1.5px 0;
    transform: rotate(45deg);
}

.form-check__input:focus-visible {
    outline: 2px solid var(--color-acento);
    outline-offset: 2px;
}

.form-check__label {
    font-size: var(--fs-sm);
    color: var(--color-tierra);
    line-height: var(--lh-snug);
    cursor: pointer;
}


/* ============================================================================
   RADIO
   ============================================================================ */

.form-radio {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    cursor: pointer;
    user-select: none;
}

.form-radio__input {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--color-taupe);
    background: var(--color-blanco);
    cursor: pointer;
    flex-shrink: 0;
    margin-top: 2px;
    border-radius: 50%;
    position: relative;
    transition: var(--transition-fast);
}

.form-radio__input:hover {
    border-color: var(--color-negro);
}

.form-radio__input:checked {
    border-color: var(--color-negro);
    border-width: 5px;
}

.form-radio__input:focus-visible {
    outline: 2px solid var(--color-acento);
    outline-offset: 2px;
}

.form-radio__label {
    font-size: var(--fs-sm);
    color: var(--color-tierra);
    line-height: var(--lh-snug);
    cursor: pointer;
}


/* ============================================================================
   RADIO CARDS (opciones con caja — usados en checkout)
   ============================================================================ */

.radio-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    border: 1px solid var(--border-color);
    background: var(--color-blanco);
    cursor: pointer;
    transition: var(--transition-fast);
}

.radio-card:hover {
    border-color: var(--color-taupe);
}

.radio-card:has(input:checked) {
    border-color: var(--color-negro);
    background: var(--color-beige-claro);
}

.radio-card__input {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--color-taupe);
    border-radius: 50%;
    cursor: pointer;
    flex-shrink: 0;
    margin-top: 2px;
    background: var(--color-blanco);
    transition: var(--transition-fast);
    position: relative;
}

.radio-card__input:checked {
    border-color: var(--color-negro);
    border-width: 5px;
}

.radio-card__content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.radio-card__title {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-negro);
}

.radio-card__description {
    font-size: var(--fs-xs);
    color: var(--color-gris-medio);
    line-height: var(--lh-snug);
}

.radio-card__price {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-negro);
}


/* ============================================================================
   SELECTOR DE TALLE / COLOR (para ficha de producto)
   ============================================================================ */

.size-selector,
.color-selector {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.size-option {
    min-width: 44px;
    height: 44px;
    padding: 0 var(--space-3);
    border: 1px solid var(--border-color);
    background: var(--color-blanco);
    color: var(--color-tierra);
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-transform: uppercase;
}

.size-option:hover {
    border-color: var(--color-negro);
}

.size-option.is-selected {
    background: var(--color-negro);
    color: var(--color-blanco);
    border-color: var(--color-negro);
}

.size-option.is-disabled {
    opacity: 0.4;
    cursor: not-allowed;
    text-decoration: line-through;
}

/* Color swatches */
.color-option {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    transition: var(--transition-fast);
    padding: 2px;
    background: transparent;
}

.color-option::before {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--swatch-color, #000);
    border: 1px solid var(--color-beige);
}

.color-option:hover {
    transform: scale(1.1);
}

.color-option.is-selected {
    border-color: var(--color-negro);
}

.color-option.is-disabled {
    opacity: 0.4;
    cursor: not-allowed;
}


/* ============================================================================
   QUANTITY SELECTOR (cantidad +/-)
   ============================================================================ */

.quantity-selector {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--border-color);
    background: var(--color-blanco);
    height: var(--input-height);
}

.quantity-selector__btn {
    width: 40px;
    height: 100%;
    background: none;
    border: none;
    color: var(--color-tierra);
    font-size: var(--fs-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.quantity-selector__btn:hover {
    background: var(--color-beige-claro);
    color: var(--color-negro);
}

.quantity-selector__btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.quantity-selector__value {
    min-width: 40px;
    text-align: center;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-negro);
    font-variant-numeric: tabular-nums;
    padding: 0 var(--space-2);
}


/* ============================================================================
   FIELDSET Y GRUPOS
   ============================================================================ */

.form-fieldset {
    border: none;
    padding: 0;
    margin: 0 0 var(--space-6) 0;
}

.form-fieldset__legend {
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    color: var(--color-negro);
    margin-bottom: var(--space-4);
    padding: 0;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-row--3 {
    grid-template-columns: 1fr 1fr 1fr;
}

@media (max-width: 600px) {
    .form-row--3 {
        grid-template-columns: 1fr;
    }
}


/* ============================================================================
   AUTOFILL (cambiar color del amarillo feo de Chrome)
   ============================================================================ */

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
textarea:-webkit-autofill,
select:-webkit-autofill {
    -webkit-text-fill-color: var(--color-negro);
    -webkit-box-shadow: 0 0 0 1000px var(--color-blanco) inset;
    transition: background-color 5000s ease-in-out 0s;
}