/* ========================================
   Variables globales y Reset
   ======================================== */
:root {
    --primario: #0066cc;
    --primario-hover: #0055aa;
    --secundario: #f5f5f5;
    --texto: #333333;
    --texto-light: #666666;
    --borde: #dddddd;
    --exito: #28a745;
    --error: #dc3545;
    --advertencia: #ffc107;
    --sombra-sm: 0 2px 5px rgba(0, 0, 0, 0.1);
    --radio-borde: 8px;
    --transicion: 0.3s ease;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--texto);
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
}

/* ========================================
   Header
   ======================================== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: white;
    box-shadow: var(--sombra-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

#btnImprimir {
    background-color: var(--primario);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radio-borde);
    cursor: pointer;
    transition: background-color var(--transicion);
    font-size: 1rem;
}

#btnImprimir:hover {
    background-color: var(--primario-hover);
}

.logo {
    height: 60px;
}

/* ========================================
   Contenedor principal
   ======================================== */
.contenedor {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: white;
    border-radius: var(--radio-borde);
    box-shadow: var(--sombra-sm);
}

/* ========================================
   Formulario
   ======================================== */
.formulario {
    margin-bottom: 2rem;
}

.form-grupo {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.form-campo label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--texto);
}

.form-campo input,
.form-campo select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--borde);
    border-radius: var(--radio-borde);
    font-size: 1rem;
    transition: border-color var(--transicion);
}

.form-campo input:focus,
.form-campo select:focus {
    border-color: var(--primario);
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.1);
}

/* ========================================
   Tabla de datos
   ======================================== */
.tabla-datos {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
}

.tabla-datos th,
.tabla-datos td {
    padding: 1rem;
    border: 1px solid var(--borde);
    text-align: center;
    vertical-align: middle;
}

.tabla-datos th {
    background-color: var(--primario);
    color: white;
    font-weight: 600;
    text-align: center;
}

.tabla-datos td input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--borde);
    border-radius: var(--radio-borde);
    text-align: center;
    font-size: 0.95rem;
}

/* ========================================
   Notas y mensajes
   ======================================== */
.nota-tarifas {
    font-size: 0.9rem;
    color: var(--texto-light);
    background: #fff3cd;
    padding: 1rem;
    border-radius: var(--radio-borde);
    border-left: 4px solid var(--advertencia);
    margin-top: 1rem;
}

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

/* Info de distribuidora */
#distribuidoraInfo {
    font-size: 0.9rem;
    line-height: 1.4;
}

/* ========================================
   Resultados - Comparativa
   ======================================== */
#comparativoTarifas {
    margin-top: 2rem;
}

.resultado-comparativa {
    background-color: var(--secundario);
    padding: 1.5rem;
    border-radius: var(--radio-borde);
    box-shadow: var(--sombra-sm);
}

.resultado-comparativa h2 {
    margin-top: 0;
    color: var(--primario);
}

/* Tabla comparativa */
.tabla-comparativa {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    box-shadow: var(--sombra-sm);
    border-radius: var(--radio-borde);
    overflow: hidden;
}

.tabla-comparativa th,
.tabla-comparativa td {
    padding: 0.75rem;
    border: 1px solid var(--borde);
    text-align: right;
}

.tabla-comparativa th {
    background-color: var(--primario);
    color: white;
    text-align: center;
    font-weight: 600;
}

.tabla-comparativa td:first-child {
    text-align: left;
    font-weight: 500;
    background-color: #f8f9fa;
}

/* Colores para diferencias */
.ahorro {
    color: var(--exito);
    font-weight: bold;
}

.sin-ahorro {
    color: var(--error);
    font-weight: bold;
}

.fila-total {
    background-color: #e3f2fd !important;
    font-weight: bold;
    font-size: 1.05em;
}

/* Pago mensual */
.pago-mensual {
    margin-top: 1rem;
    padding: 1rem;
    background-color: #f5f5f5;
    border-radius: var(--radio-borde);
    text-align: center;
    border: 1px solid var(--borde);
}

.pago-mensual strong {
    font-size: 1.2rem;
    color: var(--primario);
}

/* Resumen de ahorro */
.resumen-ahorro {
    background-color: #e8f5e9;
    padding: 1.5rem;
    border-radius: var(--radio-borde);
    margin-top: 1.5rem;
    text-align: center;
    box-shadow: var(--sombra-sm);
    border-left: 4px solid var(--exito);
}

.resumen-ahorro strong {
    color: var(--exito);
    font-size: 1.1rem;
}

.resumen-ahorro.sin-ahorro {
    background-color: #ffebee;
    border-left: 4px solid var(--error);
}

.resumen-ahorro.sin-ahorro strong {
    color: var(--error);
}

/* Datos del cliente */
.datos-cliente {
    background-color: var(--secundario);
    padding: 1.5rem;
    border-radius: var(--radio-borde);
    box-shadow: var(--sombra-sm);
    margin-top: 2rem;
}

.datos-cliente h3 {
    margin-top: 0;
    color: var(--primario);
    border-bottom: 2px solid var(--primario);
    padding-bottom: 0.5rem;
}

.datos-cliente p {
    margin: 0.5rem 0;
}

/* Quitar controles spinners de number */
input[type="number"] {
    -moz-appearance: textfield;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
    .form-grupo {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .tabla-datos th,
    .tabla-datos td {
        padding: 0.75rem 0.5rem;
        font-size: 0.9rem;
    }

    .tabla-comparativa th,
    .tabla-comparativa td {
        padding: 0.5rem 0.25rem;
        font-size: 0.85rem;
    }

    .header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
    }
}

/* ========================================
   Impresión optimizada
   ======================================== */
@media print {
    .no-imprimir {
        display: none !important;
    }

    .contenedor {
        width: 100%;
        max-width: none;
        margin: 0;
        padding: 0.5cm;
        box-shadow: none;
        border-radius: 0;
        page-break-inside: avoid;
        background: white !important;
    }

    body {
        font-size: 11px;
        line-height: 1.3;
        background: white !important;
        color: black !important;
    }

    .resultado-comparativa,
    .tabla-comparativa,
    .datos-cliente,
    .pago-mensual {
        margin: 0;
        padding: 0.25cm;
        break-inside: avoid;
    }

    .tabla-comparativa,
    .tabla-datos {
        width: 100%;
        font-size: 10px;
    }

    .tabla-comparativa th,
    .tabla-comparativa td,
    .tabla-datos th,
    .tabla-datos td {
        padding: 3px 2px;
        border: 1px solid #333;
    }

    h1, h2, h3 {
        font-size: 13px;
        margin: 0.5em 0 0.25em 0;
        page-break-after: avoid;
    }

    .pago-mensual,
    .resumen-ahorro {
        page-break-inside: avoid;
        margin: 0.25cm 0;
    }

    @page {
        size: A4;
        margin: 0.75cm;
    }

    .contenedor::after {
        content: "Energium - Comparador de Tarifas | Cálculo válido el: " attr(data-date);
        white-space: pre-wrap;
        display: block;
        text-align: center;
        font-size: 8pt;
        margin-top: 0.5cm;
        padding-top: 0.2cm;
        border-top: 1px solid #ccc;
        color: #666;
    }

    button,
    .btn,
    input,
    select {
        display: none !important;
    }

    /* Forzar colores en impresión */
    body,
    .contenedor,
    .resultado-comparativa,
    .tabla-comparativa,
    .datos-cliente,
    .pago-mensual,
    .resumen-ahorro {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
        color-adjust: exact !important;
    }

    .tabla-comparativa th {
        background-color: var(--primario) !important;
        color: white !important;
    }

    .logo {
        display: block !important;
        height: 40px !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
}