/* =============================================================
   Nómina Inteligente — Estilos de Formularios
   Inputs, selects, textareas, checkboxes, file uploads
   ============================================================= */

/* =============================================================
   FORM GROUP
   ============================================================= */

.form-group {
    margin-bottom: var(--space-lg);
}

.form-row {
    display: grid;
    gap: var(--space-lg);
}

.form-row--2 { grid-template-columns: 1fr 1fr; }
.form-row--3 { grid-template-columns: 1fr 1fr 1fr; }
.form-row--4 { grid-template-columns: 1fr 1fr 1fr 1fr; }

/* =============================================================
   LABELS
   ============================================================= */

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.form-label--required::after {
    content: ' *';
    color: var(--color-error);
}

/* =============================================================
   INPUTS, SELECTS, TEXTAREAS
   ============================================================= */

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: var(--text-sm);
    color: var(--color-text-primary);
    background-color: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    appearance: none;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--color-text-muted);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    background-color: var(--color-bg-input-disabled);
    color: var(--color-text-disabled);
    cursor: not-allowed;
}

/* Input con error */
.form-input--error,
.form-select--error,
.form-textarea--error {
    border-color: var(--color-border-error);
}

.form-input--error:focus,
.form-select--error:focus,
.form-textarea--error:focus {
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.15);
}

/* Select con flecha */
.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234A5B6E' d='M6 8.825L1.175 4 2.238 2.938 6 6.7l3.763-3.763L10.825 4z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* Textarea */
.form-textarea {
    min-height: 100px;
    resize: vertical;
    line-height: 1.5;
}

/* =============================================================
   ERROR MESSAGE
   ============================================================= */

.form-error {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-xs);
    color: var(--color-error);
    margin-top: var(--space-xs);
}

/* =============================================================
   HELP TEXT
   ============================================================= */

.form-help {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

/* =============================================================
   CHECKBOX & RADIO
   ============================================================= */

.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: var(--text-sm);
}

.form-check__input {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    appearance: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    position: relative;
}

.form-check__input[type="radio"] {
    border-radius: 50%;
}

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

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

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

.form-check__input[type="radio"]:checked::after {
    top: 3px;
    left: 3px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #FFFFFF;
    border: none;
    transform: none;
}

.form-check__label {
    color: var(--color-text-primary);
    user-select: none;
}

/* Estado disabled — usado en el árbol de permisos cuando un padre
   está marcado y los hijos quedan auto-marcados por herencia. */
.form-check__input:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

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

.form-check__input:disabled ~ .form-check__label {
    color: var(--color-text-muted);
    cursor: not-allowed;
}

/* =============================================================
   INPUT GROUP (con icono o addon)
   ============================================================= */

.input-group {
    position: relative;
    display: flex;
}

.input-group__icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
    display: flex;
    align-items: center;
}

.input-group__icon ~ .form-input {
    padding-left: 42px;
}

.input-group__action {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    padding: 6px 10px;
    color: var(--color-text-muted);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.input-group__action:hover {
    color: var(--color-text-primary);
    background-color: var(--color-bg-hover);
}

/* =============================================================
   FORM SECTION (para formularios largos como trabajadores)
   ============================================================= */

.form-section {
    margin-bottom: var(--space-2xl);
}

.form-section__title {
    font-size: var(--text-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-primary-light);
    margin-bottom: var(--space-lg);
}