/**
 * FinanzasPR - forms.css
 * Inputs, selects, textareas, labels, grupos de formulario
 */

/* ─── Form Groups ────────────────────────────────────────────────────────── */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

.form-label {
    font-size: var(--font-sm);
    font-weight: var(--fw-semi);
    color: var(--color-text-soft);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.form-label .required {
    color: var(--color-danger);
    font-size: 0.7rem;
}

/* ─── Inputs y Select ────────────────────────────────────────────────────── */
.form-control,
.form-select {
    width: 100%;
    padding: 0.6rem 0.875rem;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-md);
    color: var(--input-text);
    font-size: var(--font-sm);
    font-family: inherit;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    outline: none;
    min-height: 40px;
}

.form-control::placeholder { color: var(--input-placeholder); }

.form-control:focus,
.form-select:focus {
    border-color: var(--input-focus-border);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
    background: var(--color-surface);
}

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

.form-select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 16 16'%3E%3Cpath fill='%236b7280' d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.875rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

.form-control-sm { padding: 0.35rem 0.75rem; min-height: 32px; font-size: var(--font-xs); }

/* ─── Textarea ───────────────────────────────────────────────────────────── */
textarea.form-control {
    resize: vertical;
    min-height: 90px;
    line-height: 1.5;
}

/* ─── Input con ícono ────────────────────────────────────────────────────── */
.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-group .form-control { padding-left: 2.5rem; }

.input-prefix {
    position: absolute;
    left: 0.875rem;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    pointer-events: none;
    z-index: 1;
}

.input-suffix {
    position: absolute;
    right: 0.875rem;
    color: var(--color-text-muted);
    font-size: var(--font-sm);
    pointer-events: none;
}

/* Input con prefijo de moneda ($) */
.input-currency .form-control { padding-left: 1.8rem; }
.input-currency .input-prefix { font-weight: var(--fw-semi); font-size: var(--font-sm); }

/* ─── Toggle Switch elegante ─────────────────────────────────────────────── */
.toggle-group {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
}

.toggle-switch {
    position: relative;
    width: 48px;
    height: 26px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background var(--transition-base);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    left: 3px;
    top: 3px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    transition: transform var(--transition-base);
    box-shadow: 0 1px 4px rgba(0,0,0,0.25);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--color-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(22px);
}

.toggle-label-text {
    font-size: var(--font-sm);
    color: var(--color-text-soft);
    font-weight: var(--fw-medium);
    user-select: none;
}

/* ─── Segmented Control (para frecuencia) ───────────────────────────────── */
.segmented-control {
    display: inline-flex;
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 3px;
    gap: 2px;
}

.segmented-control input[type="radio"] { display: none; }

.segmented-control label {
    padding: 0.35rem 0.875rem;
    font-size: var(--font-xs);
    font-weight: var(--fw-semi);
    color: var(--color-text-muted);
    border-radius: calc(var(--radius-md) - 2px);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.segmented-control input:checked + label {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 2px 8px var(--color-primary-glow);
}

/* ─── Mensaje de error/ayuda ─────────────────────────────────────────────── */
.form-hint {
    font-size: var(--font-xs);
    color: var(--color-text-muted);
    margin-top: 2px;
}

.form-error {
    font-size: var(--font-xs);
    color: var(--color-danger);
    margin-top: 2px;
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

/* ─── Estado de inputs inválidos ─────────────────────────────────────────── */
.form-control.is-invalid {
    border-color: var(--color-danger);
    box-shadow: 0 0 0 3px var(--color-danger-light);
}

/* ─── Filtros de período (mes/año) ───────────────────────────────────────── */
.period-filter {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.period-filter .form-select {
    width: auto;
    min-width: 130px;
}

/* ─── Formulario en línea ────────────────────────────────────────────────── */
.form-inline {
    display: flex;
    align-items: flex-end;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.form-inline .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 150px;
}

/* ─── Sección de formulario con título ───────────────────────────────────── */
.form-section {
    margin-bottom: var(--space-6);
}

.form-section-title {
    font-size: var(--font-sm);
    font-weight: var(--fw-semi);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}