/* ============================================
   FORMULARIOS, TABLAS Y CONTROLES
   ============================================ */

/* Filters Modernos */
.filters {
    background: var(--white);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeIn 0.5s ease-out;
}

.filters h3, .filters h4 {
    font-size: clamp(13px, 2.5vw, 16px);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.comparacion-section {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.filter-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.input-wrapper {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1 1 auto;
    min-width: min(100%, 140px);
}

.filter-group label {
    font-weight: 600;
    color: var(--neutral-dark);
    font-size: clamp(12px, 2vw, 14px);
    letter-spacing: -0.01em;
}

.filter-group input, .filter-group select {
    padding: 12px 14px;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius-sm);
    font-size: clamp(12px, 2vw, 14px);
    transition: var(--transition);
    width: 100%;
    background: var(--white);
    font-family: inherit;
}

.filter-group input:focus, .filter-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Buttons Modernos */
.btn-calcular, .btn-comparar, .btn-limpiar, .btn-excel {
    padding: 12px 20px;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: clamp(13px, 2.5vw, 15px);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 8px;
    white-space: nowrap;
    font-family: inherit;
    letter-spacing: -0.01em;
    box-shadow: var(--shadow-sm);
}

.btn-calcular:hover, .btn-comparar:hover, .btn-limpiar:hover, .btn-excel:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-md);
}

.btn-calcular:active, .btn-comparar:active, .btn-limpiar:active, .btn-excel:active {
    transform: translateY(0);
}

.btn-calcular {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.btn-comparar {
    background: linear-gradient(135deg, var(--secondary) 0%, #05c391 100%);
    color: var(--white);
}

.btn-limpiar {
    background: linear-gradient(135deg, var(--neutral) 0%, #475569 100%);
    color: var(--white);
}

.btn-excel {
    background: linear-gradient(135deg, #217346 0%, #1e6e3e 100%);
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* TABS CONTAINER - Moderno */
.tabs-container {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    min-height: 540px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.tabs-header {
    display: flex;
    background: var(--neutral-light);
    border-bottom: 1px solid #e2e8f0;
}

.tab-button {
    flex: 1;
    padding: 16px;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 600;
    color: var(--neutral);
    transition: var(--transition);
    font-size: clamp(13px, 2.5vw, 15px);
    font-family: inherit;
    letter-spacing: -0.01em;
    position: relative;
}

.tab-button.active {
    background: var(--white);
    color: var(--primary);
    border-bottom: 3px solid var(--primary);
}

.tab-button:not(.active):hover {
    color: var(--primary-dark);
    background: rgba(99, 102, 241, 0.05);
}

.tab-content {
    padding: 20px;
    display: none;
    max-height: 420px;
    overflow-y: auto;
}

.tab-content.active {
    display: block;
}

/* Tablas Modernas */
#tablaAmortizacion, 
#tablaResumenComparativo {
    width: 100%;
    overflow-x: auto;
}

#tablaAmortizacion table,
#tablaResumenComparativo table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
    margin-top: 0;
    font-size: clamp(12px, 1.8vw, 14px);
    background: var(--white);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

#tablaAmortizacion th,
#tablaResumenComparativo th {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 14px 12px;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
    position: sticky;
    top: 0;
    font-size: clamp(12px, 1.8vw, 14px);
    z-index: 10;
}

#tablaAmortizacion td,
#tablaResumenComparativo td {
    padding: 12px 12px;
    border-bottom: 1px solid #f1f5f9;
    text-align: left;
    transition: var(--transition);
}

#tablaAmortizacion tr:hover,
#tablaResumenComparativo tr:hover {
    background: #f8fafc;
}

#tablaAmortizacion tr:nth-child(even),
#tablaResumenComparativo tr:nth-child(even) {
    background: #f8fafc;
}

#tablaAmortizacion tr:nth-child(even):hover,
#tablaResumenComparativo tr:nth-child(even):hover {
    background: #f1f5f9;
}

/* Diferencia de colores para comparación */
.diferencia-positiva {
    color: var(--success);
    font-weight: 700;
}

.diferencia-negativa {
    color: var(--error);
    font-weight: 700;
}

/* Loading Moderno */
.loading {
    display: none;
    text-align: center;
    padding: 20px;
    color: var(--white);
    font-size: clamp(13px, 3vw, 16px);
    background: var(--glass);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-weight: 600;
}

.loading.active {
    display: block;
}

/* Comparacion Banner */
.comparacion-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    text-align: center;
    color: var(--white);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.comparacion-banner h3 {
    margin: 0;
    font-size: clamp(17px, 4vw, 22px);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.comparacion-banner p {
    font-size: clamp(12px, 2vw, 14px);
    opacity: 0.9;
    margin-top: 8px;
}

/* Selector de sistema de amortización */
.sistema-selector {
    display: inline-block;
    margin-left: 12px;
}

.sistema-selector select {
    padding: 6px 10px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background: var(--white);
    font-size: 12px;
    color: var(--neutral-dark);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    font-weight: 500;
}

.sistema-selector select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

/* Responsive para formularios y tablas */
@media (max-width: 768px) {
    .filter-group {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }
    
    .input-wrapper {
        width: 100%;
        min-width: 100%;
    }
    
    .btn-calcular, .btn-comparar, .btn-limpiar, .btn-excel {
        width: 100%;
        padding: 14px;
        margin-top: 8px;
    }
    
    .filters {
        padding: 16px;
    }
    
    #tablaAmortizacion table,
    #tablaResumenComparativo table {
        min-width: 500px;
        font-size: 12px;
    }
    
    #tablaAmortizacion th,
    #tablaResumenComparativo th,
    #tablaAmortizacion td,
    #tablaResumenComparativo td {
        padding: 10px 8px;
    }
    
    .tab-content {
        max-height: none;
        overflow-y: visible;
        padding: 16px;
    }
    
    .sistema-selector {
        margin-left: 8px;
    }
    
    .sistema-selector select {
        padding: 5px 8px;
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .tab-button {
        padding: 14px 12px;
        font-size: 13px;
    }
    
    .comparacion-banner {
        padding: 16px;
    }
    
    #tablaAmortizacion table,
    #tablaResumenComparativo table {
        min-width: 450px;
        font-size: 11px;
    }
    
    #tablaAmortizacion th,
    #tablaResumenComparativo th,
    #tablaAmortizacion td,
    #tablaResumenComparativo td {
        padding: 8px 6px;
    }
    
    .sistema-selector {
        display: block;
        margin-left: 0;
        margin-top: 6px;
        width: 100%;
    }
    
    .sistema-selector select {
        width: 100%;
        padding: 6px;
    }
    
    .tabs-header .tab-button {
        flex-direction: column;
        padding: 12px;
    }
}

/* Optimizaciones para dispositivos muy pequeños */
@media (max-width: 360px) {

    
    .header {
        padding: 16px 20px;
    }
    
    .kpi-card {
        padding: 16px;
        min-height: 100px;
    }
    
    .chart-card {
        min-height: 220px;
        padding: 14px;
    }
    
    .chart-card canvas {
        height: 160px !important;
        max-height: 160px;
    }
    
    .tab-button {
        padding: 10px 8px;
        font-size: 12px;
    }
    
    .tabs-container {
        min-height: auto;
    }
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}