/* === ESTRUCTURA BASE DE HERRAMIENTAS === */
.tool-page {
    max-width: 850px;
    margin: 0 auto;
}

.tool-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.tool-header__title {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.tool-header__intro {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.75;
}

.tool-header__seo {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    max-width: 680px;
    margin: 0.75rem auto 0;
    line-height: 1.7;
    text-align: center;
}

/* === INFORMACIÓN RÁPIDA / BADGES === */
.quick-info {
    margin-bottom: 2rem;
    padding: 1.25rem 1.5rem;
    background: #f8fafc;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    font-size: 1rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.info-banner {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: #eff6ff;
    border-radius: var(--radius-sm);
    border: 1px solid #bfdbfe;
    font-size: 0.95rem;
    color: #1e40af;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.info-banner__icon {
    font-size: 1.25rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.indicator-badge, .tasa-badge {
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: #fff;
    border-radius: var(--radius);
    padding: 1.5rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.indicator-badge__label, .tasa-badge__label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.9;
}

.indicator-badge__value, .tasa-badge__value {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.2;
}

.indicator-badge__note, .tasa-badge__note {
    display: block;
    font-size: 0.85rem;
    opacity: 0.8;
}

/* === VALOR UF / INDICADORES === */
.uf-valor-actual, .utm-badge, .valor-actual-badge {
    margin-bottom: 2rem;
}

.uf-valor-actual__inner, .utm-badge__inner, .valor-actual-badge {
    background: linear-gradient(135deg, #059669, #10b981);
    color: #fff;
    border-radius: var(--radius);
    padding: 1.5rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.uf-valor-actual__label, .utm-badge__label, .valor-actual-badge__label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.9;
}

.uf-valor-actual__value, .utm-badge__value, .valor-actual-badge__value {
    display: block;
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    line-height: 1.2;
}

.uf-valor-actual__fecha, .utm-badge__fecha, .valor-actual-badge__date {
    display: block;
    font-size: 0.8rem;
    margin-top: 0.3rem;
    opacity: 0.8;
}

/* === FORMULARIOS === */
.tool-form-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.form-group input:not([type='checkbox']):not([type='radio']),
.form-group select,
.converter-input-wrap input,
.converter-select-wrap select {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    transition: all 0.2s;
    background: #fff;
    color: var(--color-text);
}

.form-group input:focus, 
.form-group select:focus,
.tool-form input:focus,
.tool-form select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.1);
}

/* === RANGE SLIDERS === */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    background: #e2e8f0;
    border-radius: 5px;
    outline: none;
    margin: 1rem 0;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    background: var(--color-primary);
    cursor: pointer;
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2), 0 0 0 1px var(--color-primary);
    transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    background: var(--color-primary);
    cursor: pointer;
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2), 0 0 0 1px var(--color-primary);
}


/* === ICONOS EN INPUTS === */
.input-icon-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    font-weight: 700;
    color: var(--color-text-muted);
    pointer-events: none;
    z-index: 2;
}

.input-icon-wrap input {
    padding-left: 2.25rem !important;
}

.input-icon-wrap--right .input-icon {
    left: auto;
    right: 1rem;
}

.input-icon-wrap--right input {
    padding-left: 1rem !important;
    padding-right: 2.5rem !important;
}

.highlight-input {
    color: #ef4444 !important;
    font-weight: 800;
}

.form-checks {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.check-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.95rem;
}

.check-label input[type="checkbox"] {
    width: 1.2rem;
    height: 1.2rem;
    cursor: pointer;
}

.form-row {
    display: grid;
    gap: 1.25rem;
}

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

.btn-primary, .btn-calculate {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s;
    display: block;
    text-align: center;
}

.btn-primary:hover, .btn-calculate:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 15px rgba(26, 86, 219, 0.3);
}

/* === TABS & PRESETS === */
.form-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 0.5rem;
    overflow-x: auto;
}

.form-tab {
    background: none;
    border: none;
    padding: 0.75rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.form-tab--active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.tasa-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.tasa-preset-btn {
    padding: 0.6rem 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}

.tasa-preset-btn span {
    font-size: 0.7rem;
    opacity: 0.7;
    margin-top: 0.1rem;
}

.tasa-preset-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.tasa-preset-btn--active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-preset, 
.tasa-preset-btn,
.pie-preset-btn {
    padding: 0.75rem 1.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
    color: var(--color-text);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 80px;
}

.btn-preset:hover, 
.tasa-preset-btn:hover,
.pie-preset-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.btn-preset--active,
.tasa-preset-btn--active,
.pie-preset-btn--active {
    background: var(--color-primary) !important;
    color: #fff !important;
    border-color: var(--color-primary) !important;
}


.conversion-arrow {
    text-align: center;
    font-size: 1.75rem;
    color: var(--color-primary);
    padding: 0.25rem 0;
    user-select: none;
}

/* === RESULTADOS === */
.resultado-section {
    margin-bottom: 2rem;
    animation: fadein 0.3s;
}

@keyframes fadein {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

.resultado-total {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: #ffffff;
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.resultado-total__label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.resultado-total__value {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.2;
}

.resultado-total__sub {
    display: block;
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 0.5rem;
    opacity: 0.9;
}

.desglose-grid {
    display: grid;
    gap: 0.75rem;
    margin-top: 1rem;
}

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

.desglose-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    text-align: center;
}

.desglose-item--highlight {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.desglose-item--highlight .desglose-item__value {
    color: var(--color-primary);
}

.desglose-item__icon {
    font-size: 1.75rem;
    display: block;
    margin-bottom: 0.5rem;
}

.desglose-item__label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
    margin-bottom: 0.35rem;
    line-height: 1.3;
    font-weight: 700;
}

.desglose-item__value {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--color-text);
    display: block;
}

.desglose-item__sub {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    display: block;
    margin-top: 0.25rem;
}

.desglose-nota {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background: #f8fafc;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.legal-warning {
    margin-top: 1rem;
    padding: 1rem 1.25rem;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: #94a3b8;
    line-height: 1.6;
}

.cta-print, .cta-comparar {
    margin-top: 1.5rem;
    text-align: center;
    padding: 1.5rem;
    border-radius: var(--radius-sm);
}

.cta-comparar {
    background: #fefce8;
    border: 1px solid #fef08a;
}

.cta-comparar p {
    font-size: 1rem;
    color: #854d0e;
    margin: 0 0 0.75rem 0;
    font-weight: 700;
}

.cta-comparar button {
    padding: 0.75rem 2rem;
    border: 2px solid #d97706;
    background: transparent;
    color: #d97706;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: not-allowed;
    opacity: 0.7;
}

.cta-print button {
    padding: 0.75rem 2rem;
    border: 2px solid var(--color-primary);
    background: transparent;
    color: var(--color-primary);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.cta-print button:hover {
    background: var(--color-primary);
    color: #fff;
}

/* === TABLAS (AMORTIZACIÓN/DESGLOSE) === */
.amortizacion-section {
    margin: 3rem 0;
}

.amortizacion-section h2 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.tabla-wrapper {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.tabla-data {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.tabla-data th {
    background: var(--color-primary);
    color: #fff;
    padding: 0.75rem 1rem;
    text-align: right;
    font-weight: 700;
    white-space: nowrap;
}

.tabla-data th:first-child { text-align: center; }

.tabla-data td {
    padding: 0.75rem 1rem;
    text-align: right;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.tabla-data td:first-child {
    text-align: center;
    font-weight: 700;
    color: var(--color-text);
}

.tabla-data tr:last-child td { border-bottom: none; }
.tabla-data tr:hover td { background: var(--color-primary-light); }

.tabla-data tr.fila-destacada td {
    background: #fefce8 !important;
    color: #854d0e !important;
    font-weight: 700;
    border-bottom: 2px solid #fef08a;
}

.btn-toggle-tabla {
    display: block;
    margin: 1.5rem auto 0;
    padding: 0.75rem 2.5rem;
    border: 2px solid var(--color-primary);
    background: transparent;
    color: var(--color-primary);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-toggle-tabla:hover {
    background: var(--color-primary);
    color: #fff;
}

/* === CONTENIDO SEO & FAQ === */
.seo-content-tool {
    margin: 3.5rem 0;
}

.seo-content-tool h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin: 2.5rem 0 1rem 0;
    color: var(--color-text);
}

.seo-content-tool p {
    color: var(--color-text-muted);
    line-height: 1.85;
    margin-bottom: 1.25rem;
    font-size: 1.05rem;
}

.seo-content-tool ul {
    margin: 0.75rem 0 1.5rem 1.5rem;
    color: var(--color-text-muted);
    line-height: 2;
}

.formula-box {
    background: #f8fafc;
    border-left: 4px solid var(--color-primary);
    padding: 1.25rem;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 1.5rem 0;
    text-align: center;
    font-weight: bold;
    font-family: var(--font-sans);
    font-size: 1.2rem;
    color: var(--color-text);
}

.tip-box {
    background: #f0f9ff;
    border-left: 4px solid #0ea5e9;
    padding: 1.25rem;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 1.5rem 0;
    font-size: 0.95rem;
    color: #0369a1;
    line-height: 1.6;
}

.tip-box strong {
    color: #0c4a6e;
}

.example-box {
    background: var(--color-primary-light);
    border-left: 5px solid var(--color-primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 1.5rem 2rem;
    line-height: 1.8;
    margin: 2rem 0;
}

.tool-faq {
    margin: 3.5rem 0;
}

.tool-faq h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.faq-list {
    display: grid;
    gap: 1rem;
}

.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.faq-item summary {
    padding: 1.25rem 1.5rem;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--color-primary);
}

.faq-item[open] summary::after { content: '−'; }

.faq-item p {
    padding: 0 1.5rem 1.25rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* === ENLACES RELACIONADOS === */
.related-tools {
    margin: 3rem 0;
}

.related-tools h2 {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.related-tools__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}

.related-tool-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-text);
    transition: all 0.2s;
}

.related-tool-link:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    color: var(--color-primary);
}

.related-tool-link__icon { font-size: 1.75rem; }

/* === ESPECÍFICOS: CALCULADORA DESCUENTOS === */
.sub-calc-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sub-calc-icon {
    font-size: 1.5rem;
}

.sub-calc-desc {
    font-size: 1rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.calc-result {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: #f8fafc;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    animation: fadein 0.3s;
}

.calc-result--primary {
    border-left: 4px solid var(--color-primary);
}

.calc-result.mala-oferta {
    border-left: 4px solid #ef4444;
    background: #fef2f2;
}

.res-ahorro-monto {
    margin-top: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.res-texto-destacado {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.res-blocks {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.res-block {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.res-block span {
    font-weight: 600;
    color: var(--color-text-muted);
}

.res-block strong {
    font-size: 1.4rem;
    color: var(--color-text);
}

.res-block.res-final {
    border-left: 4px solid var(--color-primary);
    background: var(--color-primary-light);
}

.res-block.res-final strong {
    color: var(--color-primary);
    font-size: 1.8rem;
}

.btn-group-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.form-hint {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: 0.4rem;
    font-style: italic;
}

.form-help-details {
    margin-top: 0.75rem;
    background: #f8fafc;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.form-help-details summary {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-help-details summary::before {
    content: "ℹ️";
    font-size: 1rem;
}

.form-help-details p {
    padding: 0 1rem 1rem 1rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    margin: 0;
}

/* === GRID PARA MÚLTIPLES CALCULADORAS === */
.calculadoras-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (max-width: 800px) {
    .calculadoras-grid {
        grid-template-columns: 1fr;
    }
}

/* === CÁLCULOS INLINE (PEQUEÑAS FRASES) === */
.inline-calc {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 1.25rem;
}

.inline-calc input {
    width: 110px !important;
    padding: 0.8rem 0.5rem !important;
    text-align: center;
    display: inline-block;
}

.inline-calc select {
    width: auto !important;
    padding: 0.8rem 2rem 0.8rem 0.75rem !important;
    display: inline-block;
}

/* === ESTADOS DE RESULTADOS === */
.calc-result.is-positive {
    border-left-color: #10b981;
    background: #ecfdf5;
}

.calc-result.is-negative {
    border-left-color: #ef4444;
    background: #fef2f2;
}

.calc-result.is-positive strong {
    color: #059669;
}

.calc-result.is-negative strong {
    color: #dc2626;
}

.tool-disclaimer {
    margin-top: 3rem;
    padding: 1.5rem;
    background: #fefce8;
    border: 1px solid #fef08a;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: #854d0e;
    line-height: 1.7;
}

/* === PRINT STYLES === */
@media print {
    .site-header, .site-footer, .ad-block, .cta-print, 
    .cta-comparar, .tool-faq, .related-tools, 
    .tool-disclaimer, .btn-toggle-tabla {
        display: none !important;
    }
    .resultado-section, .amortizacion-section {
        display: block !important;
    }
    .tool-page { max-width: 100%; margin: 0; }
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .tool-header__title { font-size: 1.8rem; }
    .tool-form-section { padding: 1.5rem; }
    .form-row--2, .form-row--3 { grid-template-columns: 1fr; }
    .desglose-grid, .desglose-grid--2, .desglose-grid--3, .desglose-grid--4 { grid-template-columns: 1fr; }
    .resultado-total__value { font-size: 2.25rem; }
    .uf-valor-actual__value, .utm-badge__value { font-size: 2rem; }
}

/* --- CONVERTER & SWAP --- */
.converter-box { 
    display: grid; 
    grid-template-columns: 2fr 1.5fr 40px 1.5fr; 
    gap: 1rem; 
    align-items: flex-end; 
    margin-bottom: 2rem; 
}

@media (max-width: 650px) { 
    .converter-box { grid-template-columns: 1fr; } 
    .swap-button { margin: 0.5rem auto !important; transform: rotate(90deg); }
}

.swap-button { 
    background: var(--color-primary-light); 
    color: var(--color-primary); 
    border: none; 
    padding: 0.5rem; 
    border-radius: 50%; 
    width: 40px; 
    height: 40px; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    cursor: pointer; 
    font-size: 1.2rem; 
    transition: all 0.2s;
    margin-bottom: 0.5rem;
}
.swap-button:hover { background: var(--color-primary); color: #fff; transform: scale(1.1); }

/* --- RANGE INPUTS --- */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    background: #e2e8f0;
    border-radius: 5px;
    outline: none;
    margin: 1.5rem 0;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    cursor: pointer;
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    transition: all 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.pie-presets, .tasa-presets {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.pie-preset-btn, .tasa-preset-btn { 
    padding: 0.6rem 1rem; 
    background: var(--color-surface); 
    border: 1px solid var(--color-border); 
    border-radius: var(--radius-sm); 
    font-weight: 600; 
    cursor: pointer; 
    font-size: 0.85rem; 
    transition: all 0.2s; 
}
.pie-preset-btn:hover, .tasa-preset-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.pie-preset-btn--active, .tasa-preset-btn--active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }


.tabla-conversiones {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    font-size: 0.95rem;
}

.tabla-conversiones th {
    background: #f8fafc;
    padding: 1rem;
    text-align: left;
    font-weight: 700;
    color: var(--color-text);
    border-bottom: 2px solid var(--color-border);
}

.tabla-conversiones td {
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.tabla-conversiones tr:nth-child(even) {
    background: #fbfcfe;
}