/* ========================================
   Calculadora Solar - Estilos Principales
   ======================================== */

:root {
    /* Colores principales */
    --solar-primary: #f59e0b;
    --solar-primary-dark: #d97706;
    --solar-primary-light: #fbbf24;
    --solar-secondary: #10b981;
    --solar-accent: #3b82f6;
    
    /* Colores de fondo */
    --solar-bg-main: #ffffff;
    --solar-bg-secondary: #f9fafb;
    --solar-bg-card: #ffffff;
    
    /* Colores de texto */
    --solar-text-primary: #111827;
    --solar-text-secondary: #6b7280;
    --solar-text-light: #9ca3af;
    
    /* Bordes y sombras */
    --solar-border: #e5e7eb;
    --solar-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --solar-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --solar-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --solar-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Espaciado */
    --solar-spacing-xs: 0.5rem;
    --solar-spacing-sm: 1rem;
    --solar-spacing-md: 1.5rem;
    --solar-spacing-lg: 2rem;
    --solar-spacing-xl: 3rem;
    
    /* Bordes redondeados */
    --solar-radius-sm: 0.375rem;
    --solar-radius-md: 0.5rem;
    --solar-radius-lg: 0.75rem;
    --solar-radius-xl: 1rem;
    
    /* Transiciones */
    --solar-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   Contenedor Principal
   ======================================== */

.calculadora-solar-container {
    max-width: 900px;
    margin: 2rem auto;
    padding: var(--solar-spacing-lg);
    background: var(--solar-bg-main);
    border-radius: var(--solar-radius-xl);
    box-shadow: var(--solar-shadow-xl);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ========================================
   Header
   ======================================== */

.calc-solar-header {
    text-align: center;
    margin-bottom: var(--solar-spacing-xl);
    padding-bottom: var(--solar-spacing-lg);
    border-bottom: 2px solid var(--solar-border);
}

.calc-solar-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--solar-spacing-md);
    background: linear-gradient(135deg, var(--solar-primary) 0%, var(--solar-primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--solar-shadow-lg);
    animation: pulse-glow 2s ease-in-out infinite;
}

.calc-solar-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(245, 158, 11, 0.4), var(--solar-shadow-lg);
    }
    50% {
        box-shadow: 0 0 30px rgba(245, 158, 11, 0.6), var(--solar-shadow-lg);
    }
}

.calc-solar-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--solar-text-primary);
    margin: 0 0 var(--solar-spacing-sm);
    background: linear-gradient(135deg, var(--solar-primary) 0%, var(--solar-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.calc-solar-subtitle {
    font-size: 1.125rem;
    color: var(--solar-text-secondary);
    margin: 0;
}

/* ========================================
   Sección de Entrada
   ======================================== */

.calc-solar-input-section {
    background: var(--solar-bg-secondary);
    padding: var(--solar-spacing-lg);
    border-radius: var(--solar-radius-lg);
    margin-bottom: var(--solar-spacing-lg);
}

.calc-input-group {
    margin-bottom: var(--solar-spacing-lg);
}

.calc-label {
    display: flex;
    align-items: center;
    gap: var(--solar-spacing-xs);
    font-size: 1rem;
    font-weight: 600;
    color: var(--solar-text-primary);
    margin-bottom: var(--solar-spacing-sm);
}

.label-icon {
    font-size: 1.25rem;
}

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

.calc-input {
    width: 100%;
    padding: 1rem 4rem 1rem 1.25rem;
    font-size: 1.125rem;
    font-weight: 500;
    border: 2px solid var(--solar-border);
    border-radius: var(--solar-radius-md);
    background: white;
    color: var(--solar-text-primary);
    transition: var(--solar-transition);
}

.calc-input:focus {
    outline: none;
    border-color: var(--solar-primary);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.calc-input::placeholder {
    color: var(--solar-text-light);
}

.calc-input.error {
    border-color: #ef4444;
    background-color: #fef2f2;
}

.calc-input.error:focus {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.input-unit {
    position: absolute;
    right: 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--solar-text-secondary);
    pointer-events: none;
}

.input-help {
    margin: var(--solar-spacing-xs) 0 0;
    font-size: 0.875rem;
    color: var(--solar-text-secondary);
}

/* ========================================
   Mensaje de Error
   ======================================== */

.calc-error-message {
    display: none;
    padding: var(--solar-spacing-md);
    background: #fef2f2;
    border: 2px solid #fca5a5;
    border-radius: var(--solar-radius-md);
    margin-bottom: var(--solar-spacing-md);
    color: #991b1b;
    font-size: 0.875rem;
    animation: shake 0.5s ease-in-out;
}

.calc-error-message strong {
    color: #7f1d1d;
    margin-right: var(--solar-spacing-xs);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* ========================================
   Botón de Cálculo
   ======================================== */

.calculadora-solar-container .calc-button {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--solar-primary) 0%, var(--solar-primary-dark) 100%);
    border: none;
    border-radius: var(--solar-radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--solar-spacing-sm);
    transition: var(--solar-transition);
    box-shadow: var(--solar-shadow-md);
}

.calculadora-solar-container .calc-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--solar-shadow-lg);
}

.calc-button:active {
    transform: translateY(0);
}

.button-icon {
    font-size: 1.5rem;
    animation: rotate 2s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.calc-button:hover .button-icon {
    animation-duration: 1s;
}

/* ========================================
   Resultados
   ======================================== */

.calc-solar-results {
    animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--solar-spacing-lg);
    flex-wrap: wrap;
    gap: var(--solar-spacing-sm);
}

.results-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--solar-text-primary);
    margin: 0;
}

.consumo-badge {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--solar-secondary) 0%, #059669 100%);
    color: white;
    border-radius: var(--solar-radius-md);
    font-weight: 600;
    font-size: 1rem;
    box-shadow: var(--solar-shadow-sm);
}

/* ========================================
   Grid de Resultados
   ======================================== */

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--solar-spacing-md);
    margin-bottom: var(--solar-spacing-lg);
}

.result-card {
    background: var(--solar-bg-card);
    border: 2px solid var(--solar-border);
    border-radius: var(--solar-radius-lg);
    padding: var(--solar-spacing-md);
    display: flex;
    gap: var(--solar-spacing-md);
    transition: var(--solar-transition);
    position: relative;
    overflow: hidden;
}

.result-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--solar-primary) 0%, var(--solar-primary-dark) 100%);
}

.result-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--solar-shadow-lg);
    border-color: var(--solar-primary-light);
}

.card-icon {
    width: 60px;
    height: 60px;
    min-width: 60px;
    background: linear-gradient(135deg, var(--solar-primary-light) 0%, var(--solar-primary) 100%);
    border-radius: var(--solar-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--solar-shadow-sm);
}

.card-icon svg {
    width: 30px;
    height: 30px;
    color: white;
}

.card-content {
    flex: 1;
}

.card-content h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--solar-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 var(--solar-spacing-xs);
}

.card-value {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    margin-bottom: var(--solar-spacing-xs);
}

.value-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--solar-text-primary);
    line-height: 1;
}

.value-unit {
    font-size: 1rem;
    font-weight: 500;
    color: var(--solar-text-secondary);
}

.card-detail {
    font-size: 0.875rem;
    color: var(--solar-text-secondary);
    margin: 0;
}

/* ========================================
   Información Adicional
   ======================================== */

.info-section {
    margin-bottom: var(--solar-spacing-lg);
}

.info-card {
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
    border: 2px solid #86efac;
    border-radius: var(--solar-radius-lg);
    padding: var(--solar-spacing-md);
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--solar-spacing-sm) 0;
    border-bottom: 1px solid rgba(134, 239, 172, 0.3);
}

.info-row:last-child {
    border-bottom: none;
}

.info-row.highlight {
    background: rgba(16, 185, 129, 0.1);
    margin: 0 calc(var(--solar-spacing-md) * -1);
    padding: var(--solar-spacing-sm) var(--solar-spacing-md);
    border-radius: var(--solar-radius-md);
}

.info-label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--solar-text-primary);
}

.info-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--solar-secondary);
}

/* ========================================
   Nota Informativa
   ======================================== */

.calc-note {
    background: #fffbeb;
    border: 2px solid #fde68a;
    border-radius: var(--solar-radius-lg);
    padding: var(--solar-spacing-md);
}

.calc-note p {
    margin: 0;
    font-size: 0.875rem;
    color: #92400e;
    line-height: 1.6;
}

.calc-note strong {
    color: #78350f;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 768px) {
    .calculadora-solar-container {
        margin: 1rem;
        padding: var(--solar-spacing-md);
    }
    
    .calc-solar-title {
        font-size: 1.75rem;
    }
    
    .calc-solar-subtitle {
        font-size: 1rem;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .results-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .info-row {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--solar-spacing-xs);
    }
}

@media (max-width: 480px) {
    .calc-solar-icon {
        width: 60px;
        height: 60px;
    }
    
    .calc-solar-icon svg {
        width: 30px;
        height: 30px;
    }
    
    .calc-solar-title {
        font-size: 1.5rem;
    }
    
    .value-number {
        font-size: 1.5rem;
    }
}

/* ========================================
   Animaciones de Carga
   ======================================== */

.calc-button.loading {
    pointer-events: none;
    opacity: 0.7;
}

.calc-button.loading .button-icon {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   COMPARADOR DE PANELES SOLARES
   ======================================== */

/* Pestañas de Navegación */
.calc-tabs {
    display: flex;
    gap: var(--solar-spacing-sm);
    margin-bottom: var(--solar-spacing-lg);
    border-bottom: 2px solid var(--solar-border);
}

.calculadora-solar-container .calc-tab {
    flex: 1;
    padding: var(--solar-spacing-md);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--solar-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--solar-spacing-xs);
    transition: var(--solar-transition);
    position: relative;
    bottom: -2px;
}

.calculadora-solar-container .calc-tab:hover {
    color: var(--solar-primary);
    background: rgba(245, 158, 11, 0.05);
}

.calculadora-solar-container .calc-tab.active {
    color: var(--solar-primary);
    border-bottom-color: var(--solar-primary);
}

.tab-icon {
    font-size: 1.25rem;
}

/* Contenido de Pestañas */
.calc-tab-content {
    display: none;
}

.calc-tab-content.active {
    display: block;
    animation: fadeInUp 0.4s ease-out;
}

/* Secciones del Comparador */
.comparador-section {
    margin-bottom: var(--solar-spacing-xl);
}

.section-header {
    margin-bottom: var(--solar-spacing-lg);
}

.section-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--solar-text-primary);
    margin: 0 0 var(--solar-spacing-xs);
}

.section-description {
    font-size: 1rem;
    color: var(--solar-text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* Formulario del Inversor */
.inversor-form {
    background: var(--solar-bg-secondary);
    padding: var(--solar-spacing-lg);
    border-radius: var(--solar-radius-lg);
    border: 2px solid var(--solar-border);
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--solar-text-primary);
    margin-bottom: var(--solar-spacing-xs);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.form-label sub {
    font-size: 0.75rem;
}

.input-with-unit {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input {
    width: 100%;
    padding: 0.75rem 3.5rem 0.75rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--solar-border);
    border-radius: var(--solar-radius-md);
    background: white;
    color: var(--solar-text-primary);
    transition: var(--solar-transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--solar-primary);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.form-input::placeholder {
    color: var(--solar-text-light);
}

.unit-label {
    position: absolute;
    right: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--solar-text-secondary);
    pointer-events: none;
}

/* Tooltips */
.tooltip-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: var(--solar-primary-light);
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    cursor: help;
    transition: var(--solar-transition);
}

.tooltip-icon:hover {
    background: var(--solar-primary);
    transform: scale(1.1);
}

.tooltip-popup {
    position: absolute;
    background: var(--solar-text-primary);
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: var(--solar-radius-sm);
    font-size: 0.75rem;
    line-height: 1.4;
    max-width: 250px;
    z-index: 1000;
    box-shadow: var(--solar-shadow-lg);
    display: none;
}

.tooltip-popup::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--solar-text-primary);
}

/* Tarjetas de Panel */
#paneles-container {
    display: flex;
    flex-direction: column;
    gap: var(--solar-spacing-md);
    margin-bottom: var(--solar-spacing-md);
}

.panel-form-card {
    background: white;
    border: 2px solid var(--solar-border);
    border-radius: var(--solar-radius-lg);
    overflow: hidden;
    transition: var(--solar-transition);
    animation: slideInDown 0.3s ease-out;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.panel-form-card:hover {
    border-color: var(--solar-primary-light);
    box-shadow: var(--solar-shadow-md);
}

.panel-form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--solar-spacing-md);
    background: linear-gradient(135deg, var(--solar-primary-light) 0%, var(--solar-primary) 100%);
    color: white;
}

.panel-form-header h4 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
}

.remove-panel-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--solar-transition);
    font-size: 1.25rem;
    font-weight: 700;
}

.remove-panel-btn:hover {
    background: rgba(239, 68, 68, 0.9);
    border-color: white;
    transform: rotate(90deg);
}

.panel-form-body {
    padding: var(--solar-spacing-lg);
}

/* Botón Secundario */
.calc-button.secondary {
    background: white;
    color: var(--solar-primary);
    border: 2px solid var(--solar-primary);
}

.calc-button.secondary:hover {
    background: var(--solar-primary);
    color: white;
}

/* Tabla de Comparación */
.tabla-comparacion-wrapper {
    overflow-x: auto;
    margin-bottom: var(--solar-spacing-lg);
    border-radius: var(--solar-radius-lg);
    box-shadow: var(--solar-shadow-md);
}

.tabla-comparacion {
    width: 100%;
    border-collapse: collapse;
    background: white;
    font-size: 0.875rem;
}

.tabla-comparacion thead {
    background: linear-gradient(135deg, var(--solar-primary) 0%, var(--solar-primary-dark) 100%);
    color: white;
}

.tabla-comparacion th {
    padding: var(--solar-spacing-md);
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
}

.tabla-comparacion th .tooltip-icon {
    background: rgba(255, 255, 255, 0.3);
    margin-left: 0.25rem;
}

.tabla-comparacion th .tooltip-icon:hover {
    background: rgba(255, 255, 255, 0.5);
}

.tabla-comparacion tbody tr {
    border-bottom: 1px solid var(--solar-border);
    transition: var(--solar-transition);
}

.tabla-comparacion tbody tr:hover {
    background: var(--solar-bg-secondary);
}

.tabla-comparacion tbody tr.mejor-opcion {
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
    border: 2px solid var(--solar-secondary);
}

.tabla-comparacion tbody tr.mejor-opcion:hover {
    background: linear-gradient(135deg, #dcfce7 0%, #d1fae5 100%);
}

.tabla-comparacion td {
    padding: var(--solar-spacing-md);
    color: var(--solar-text-primary);
}

.badge-mejor {
    display: inline-block;
    background: linear-gradient(135deg, var(--solar-secondary) 0%, #059669 100%);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--solar-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 0.5rem;
    white-space: nowrap;
}

/* Caja de Recomendación */
.recomendacion-box {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 2px solid #93c5fd;
    border-radius: var(--solar-radius-lg);
    padding: var(--solar-spacing-lg);
    margin-bottom: var(--solar-spacing-lg);
    animation: fadeInUp 0.5s ease-out;
}

.recomendacion-content {
    display: flex;
    gap: var(--solar-spacing-md);
    align-items: flex-start;
}

.recomendacion-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.recomendacion-text h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--solar-text-primary);
    margin: 0 0 var(--solar-spacing-sm);
}

.recomendacion-text p {
    font-size: 1rem;
    color: var(--solar-text-secondary);
    line-height: 1.6;
    margin: 0 0 var(--solar-spacing-md);
}

.recomendacion-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--solar-spacing-md);
}

.stat-item {
    background: white;
    padding: var(--solar-spacing-sm);
    border-radius: var(--solar-radius-md);
    border: 1px solid #bfdbfe;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--solar-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.stat-value {
    display: block;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--solar-accent);
}

/* Responsive - Comparador */
@media (max-width: 768px) {
    .calc-tabs {
        flex-direction: column;
    }
    
    .calc-tab {
        border-bottom: 2px solid var(--solar-border);
        border-left: 3px solid transparent;
        justify-content: flex-start;
        bottom: 0;
    }
    
    .calc-tab.active {
        border-bottom-color: var(--solar-border);
        border-left-color: var(--solar-primary);
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .tabla-comparacion {
        font-size: 0.75rem;
    }
    
    .tabla-comparacion th,
    .tabla-comparacion td {
        padding: var(--solar-spacing-sm);
    }
    
    .recomendacion-content {
        flex-direction: column;
        text-align: center;
    }
    
    .recomendacion-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .badge-mejor {
        display: block;
        margin: 0.5rem 0 0 0;
    }
}

/* ========================================
   PESTAÑA DE CONFIGURACIÓN
   ======================================== */

.config-intro {
    background: #f0f9ff;
    border-left: 4px solid var(--solar-accent);
    padding: var(--solar-spacing-md);
    margin-bottom: var(--solar-spacing-lg);
    border-radius: var(--solar-radius-md);
}

.config-intro h3 {
    margin-top: 0;
    color: var(--solar-text-primary);
    font-size: 1.25rem;
}

.config-intro p {
    margin-bottom: 0;
    color: var(--solar-text-secondary);
}

.config-section {
    background: white;
    border: 1px solid var(--solar-border);
    border-radius: var(--solar-radius-lg);
    padding: var(--solar-spacing-lg);
    margin-bottom: var(--solar-spacing-lg);
    box-shadow: var(--solar-shadow-sm);
}

.config-section-header {
    margin-bottom: var(--solar-spacing-md);
    padding-bottom: var(--solar-spacing-xs);
    border-bottom: 1px solid var(--solar-border);
}

.config-section-header h4 {
    margin: 0;
    color: var(--solar-text-primary);
    font-size: 1.125rem;
    font-weight: 600;
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--solar-spacing-lg);
}

.config-item {
    display: flex;
    flex-direction: column;
}

.config-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--solar-text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.config-help {
    font-size: 0.8rem;
    color: var(--solar-text-light);
    margin-top: 0.25rem;
    font-style: italic;
}

.config-actions {
    display: flex;
    gap: var(--solar-spacing-md);
    margin-top: var(--solar-spacing-xl);
    flex-wrap: wrap;
}

.config-actions .calc-button {
    flex: 1;
    min-width: 200px;
}

.config-mensaje {
    margin-top: var(--solar-spacing-md);
    padding: var(--solar-spacing-md);
    border-radius: var(--solar-radius-md);
    display: flex;
    align-items: center;
    gap: var(--solar-spacing-sm);
    font-weight: 500;
}

.config-mensaje.success {
    background: #f0fdf4;
    color: #15803d;
    border: 1px solid #bbf7d0;
}

.config-mensaje.error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.config-mensaje-icon {
    font-size: 1.25rem;
    font-weight: bold;
}

/* =========================================
   COMPATIBILIDAD MODE SELECTOR
   ========================================= */
.comparison-mode-selector {
    margin-bottom: 24px;
    background: #f8fafc;
    padding: 16px;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.selector-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--solar-text-primary);
    margin-bottom: 12px;
}

.mode-options {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.mode-option {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    background: white;
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid #cbd5e1;
    transition: all 0.2s;
}

.mode-option:hover {
    border-color: var(--solar-primary);
    background: #eff6ff;
}

.mode-option input[type='radio'] {
    accent-color: var(--solar-primary);
    transform: scale(1.1);
}

.mode-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--solar-text-primary);
}

.info-box-light {
    background: #f0f9ff;
    padding: 16px;
    border-radius: 8px;
    border-left: 4px solid var(--solar-secondary);
    color: #1e40af;
    font-size: 0.95rem;
}


/* =========================================
   SELECTOR TIPO DE SISTEMA (CALCULADORA)
   ========================================= */
.system-type-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
    margin-bottom: 30px;
}

.system-option {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 10px;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.system-option:hover:not(.disabled) {
    border-color: var(--solar-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.system-option input[type='radio'] {
    position: absolute;
    opacity: 0;
}

/* Estado Activo */
.system-option:has(input:checked) {
    border-color: var(--solar-primary);
    background: #fffbeb; /* Un tono muy suave del primario */
    box-shadow: 0 0 0 1px var(--solar-primary);
}

.system-option .option-icon {
    font-size: 2rem;
    margin-bottom: 8px;
    filter: grayscale(100%);
    transition: filter 0.3s;
}

.system-option:has(input:checked) .option-icon {
    filter: grayscale(0%);
    transform: scale(1.1);
}

.system-option .option-label {
    font-weight: 600;
    color: var(--solar-text-primary);
    font-size: 0.95rem;
}

/* Estado Deshabilitado */
.system-option.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: #f8fafc;
    border-color: #e2e8f0;
}

.system-option.disabled:hover {
    transform: none;
    box-shadow: none;
}

.coming-soon-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: #64748b;
    color: white;
    font-size: 0.65rem;
    padding: 2px 8px;
    border-radius: 99px;
    text-transform: uppercase;
    font-weight: 700;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}