body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; margin: 0; padding: 0; display: flex; background-color: #f8f9fa; }

/* Estilos para raíces cuadradas simples */
.sqrt-simple {
    font-size: 1.2em;
    font-weight: bold;
    color: #007bff;
    margin-right: 2px;
}

.sqrt-content {
    border-top: 1px solid #333;
    padding-top: 2px;
    display: inline-block;
    min-width: 20px;
}

.sqrt-formula {
    display: inline-block;
    margin: 5px;
}

/* Estilos para barras verticales largas (hipérbola) */
.large-bars {
    font-size: 2em;
    font-weight: bold;
    color: #dc3545;
    line-height: 1;
    vertical-align: middle;
    padding: 0 3px;
    display: inline-block;
}

#sidebar { 
    width: 280px; 
    background-color: #343a40; /* Darker sidebar */
    color: white;
    padding: 20px; 
    height: 100vh; 
    position: fixed;
    left: 0;
    top: 0;
    overflow-y: auto;
    box-shadow: 2px 0 5px rgba(0,0,0,0.1);
}
#sidebar h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #495057;
    padding-bottom: 0.75rem;
}
#sidebar ul { list-style: none; padding: 0; }
#sidebar li { margin-bottom: 0.5rem; }
#sidebar button {
    width: 100%;
    padding: 0.85rem 1rem; /* Increased padding */
    border: none;
    border-radius: 0.375rem; /* Bootstrap's default rounded corners */
    background: #495057; /* Slightly lighter than sidebar bg */
    color: white;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    font-weight: 500;
    text-align: left; /* Align text to the left */
}
#sidebar button:hover, #sidebar button.active {
    background: #007bff; /* Bootstrap primary blue */
    transform: translateX(5px);
}

#content { 
    margin-left: 280px; /* Same as sidebar width */
    flex-grow: 1; 
    padding: 30px;  /* Increased padding */
    overflow-y: auto; /* Allow content to scroll if needed */
    height: 100vh;
}
.tool-container { 
    background-color: #fff; 
    border: 1px solid #dee2e6; 
    border-radius: 0.375rem; 
    padding: 30px; /* Increased padding */
    margin-top: 0; /* Removed top margin as content has padding */
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15);
}

/* Common input styles */
.matrix-input input, .number-input, .operation-selector { 
    width: 100%; 
    padding: 0.5rem; 
    border: 1px solid #ced4da; 
    border-radius: 0.25rem; 
    text-align: center; 
    font-size: 1rem;
    box-sizing: border-box; /* Important for width 100% */
}
/* Specific style for matrix entry cells in general */
.matrix-entry-cell {
    width: 80px; /* Adjust as needed for fractions */
    margin: 2px;
}
.matrix-input input { width: 80px; margin: 2px; } /* Specific to Gauss-Jordan if needed */


.gj-history { max-height: 200px; overflow-y: auto; }
.gj-card { margin-bottom: 1rem; }
.gj-matrix { font-size: 0.9em; white-space: pre-wrap; }

.btn-primary { background-color: #007bff; border-color: #007bff; }
.btn-primary:hover { background-color: #0056b3; border-color: #0056b3; }
.btn-secondary { background-color: #6c757d; border-color: #6c757d; }
.btn-secondary:hover { background-color: #545b62; border-color: #545b62; }
.btn-warning { background-color: #ffc107; border-color: #ffc107; color: #212529; }
.btn-warning:hover { background-color: #e0a800; border-color: #d39e00; }
.btn-success { background-color: #28a745; border-color: #28a745; }
.btn-danger { background-color: #dc3545; border-color: #dc3545; }


/* Estilos específicos para la herramienta de determinantes */
:root {
    --primary-color-det: #007bff;      /* Bootstrap primary */
    --secondary-color-det: #6c757d;   /* Bootstrap secondary */
    --warning-color-det: #ffc107;     /* Bootstrap warning */
    --danger-color-det: #dc3545;      /* Bootstrap danger */
    --border-color-det: #dee2e6;      /* Bootstrap border */
    --background-light-det: #f8f9fa;  /* Bootstrap light background */
}

.determinant-tool .main-title { font-size: 1.8rem; font-weight: bold; text-align: center; margin-bottom: 2rem; color: #343a40; }
.determinant-tool .subtitle { font-size: 1.25rem; font-weight: 600; margin: 1.5rem 0 1rem 0; color: #495057; border-bottom: 1px solid var(--border-color-det); padding-bottom: 0.5rem;}

.determinant-tool .grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
}

.determinant-tool .card { 
    background: white; 
    border-radius: 0.375rem; 
    padding: 20px; 
    border: 1px solid var(--border-color-det);
    box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.075);
}

.matrix-grid-det { display: grid; gap: 0.5rem; margin: 1rem 0; }
.matrix-row-det { display: flex; gap: 0.5rem; justify-content: center; }
.matrix-cell-det { position: relative; min-width: 60px; max-width: 70px; } /* Adjusted width */

.determinant-tool .button { 
    display: inline-block; padding: 0.65rem 1rem; border: none; border-radius: 0.25rem; 
    font-size: 0.95rem; cursor: pointer; transition: background-color 0.2s; 
    text-align: center; width: 100%; margin: 0.5rem 0; color: white; font-weight: 500;
}
.button-primary-det { background-color: var(--primary-color-det); }
.button-primary-det:hover { background-color: #0056b3; }
.button-secondary-det { background-color: var(--secondary-color-det); }
.button-secondary-det:hover { background-color: #545b62; }
.button-warning-det { background-color: var(--warning-color-det); color: #212529; }
.button-warning-det:hover { background-color: #e0a800; }
.button-danger-det { background-color: var(--danger-color-det); }
.button-danger-det:hover { background-color: #b02a37; }


.process-section-det { margin-top: 20px; padding: 15px; background-color: var(--background-light-det); border-radius: 0.375rem; border: 1px solid var(--border-color-det); }
.latex-process-det { 
    margin: 10px 0; padding: 20px; background-color: white; border-radius: 0.25rem; 
    min-height: 150px; overflow-x: auto; border: 1px solid var(--border-color-det); 
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1); font-size: 1.1em;
}
.operations-box-det { padding: 15px; background-color: var(--background-light-det); border-radius: 0.375rem; margin: 1rem 0; border: 1px solid var(--border-color-det); }
.operation-inputs-det { margin-bottom: 1rem; display: flex; flex-direction: column; gap: 0.75rem; }
.operation-inputs-det div { display: flex; flex-direction: column; } /* Stack label and select/input */
.operation-inputs-det label { margin-bottom: 0.25rem; font-weight: 500; font-size: 0.9em; }

.info-section-det { margin-top: 1.5rem; padding: 1rem; background-color: #e9ecef; border-radius: 0.25rem; border-left: 4px solid var(--primary-color-det); font-size: 0.9em;}
.properties-section-det { margin-top: 1.5rem; padding: 1rem; background-color: #e9ecef; border-radius: 0.25rem; }
.property-item-det { margin-bottom: 0.75rem; padding: 0.75rem; border-left: 3px solid var(--primary-color-det); background-color: white; border-radius: 0.25rem; }
.property-item-det p { margin-bottom: 0.25rem; font-size: 0.9em; }
.property-item-det strong { font-size: 0.95em; }

.button:disabled { background-color: #ccc; cursor: not-allowed; }
.final-determinant-display {
    margin-top: 1.5rem;
    padding: 1rem;
    background-color: #d1ecf1; /* Light blue for info */
    border: 1px solid #bee5eb;
    color: #0c5460; /* Darker blue text */
    border-radius: 0.25rem;
    font-weight: bold;
    text-align: center;
    font-size: 1.2em;
}

/* Estilos para matrices */
.matrix-container {
    margin: 1rem 0;
}
.latex-output {
    margin-top: 1.5rem;
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: 0.375rem;
    border: 1px solid #dee2e6;
    word-wrap: break-word; /* NUEVO: para que el LaTeX no se desborde tanto */
    overflow-x: auto; /* NUEVO: scroll si es necesario */
}

/* Estilos mejorados para visualización LaTeX */
.latex-output {
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 20px;
    margin: 15px 0;
    overflow-x: auto;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Mejoras específicas para la visualización de LaTeX y MathJax */
.latex-output .MathJax_Display,
.formula-panel .MathJax_Display,
.math .MathJax_Display {
    margin: 1em 0 !important;
    text-align: center !important;
}

.latex-output .MathJax,
.formula-panel .MathJax,
.math .MathJax {
    font-size: 1.2em !important;
    line-height: 1.4 !important;
}

/* Forzar re-renderizado correcto de MathJax */
.math-equation .MathJax_Display,
.formula-panel .MathJax_Display,
.math .MathJax_Display {
    margin: 0.5em 0 !important;
}

/* Mejorar visualización de fórmulas LaTeX */
.latex-output, .formula-panel, .math {
    overflow-x: auto;
    padding: 10px 0;
    max-width: 100%;
}

/* Estilos específicos para símbolos matemáticos y facilitar visualización */
.MathJax .math {
    font-size: 1.15em !important;
}

.MathJax_SVG_Display, .MathJax_Display {
    overflow-x: auto;
    overflow-y: hidden;
    padding: 5px 0;
}

/* Estilos específicos para ecuaciones paramétricas */
.parametric-equation {
    padding: 10px;
    margin: 15px 0;
    background-color: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #2196f3;
}

/* Contenedores específicos para las coordenadas paramétricas */
#coordenadasParametricas, 
#coordenadasParametricasElipse,
#coordenadasParametricasHiperbola {
    margin-top: 15px;
    margin-bottom: 15px;
    padding: 5px;
}

/* Mejorar visibilidad de fórmulas en casos especiales */
.coordenadasParametricas .MathJax,
.coordenadasParametricasElipse .MathJax,
.coordenadasParametricasHiperbola .MathJax,
.parametric-equation .MathJax {
    font-size: 1.25em !important;
    line-height: 1.6 !important;
}

/* Estilos específicos para el ambiente 'cases' en LaTeX */
.MathJax .mtable {
    vertical-align: middle !important;
}

/* Mejorar visualización de llaves en casos */
.MathJax .mo[stretchy="true"] {
    margin: 0 3px !important;
    font-size: 1.2em !important;
}

/* Estilos para Sistemas LN y NL */
.sistema-rectas-tool {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    color: #212529;
}

.sistema-rectas-tool .main-title {
    color: #0d6efd;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
}

.sistema-rectas-tool .form-label {
    font-weight: 500;
    margin-bottom: 8px;
}

.sistema-rectas-tool .canvas-container {
    width: 100%;
    height: 400px;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    background-color: white;
    margin: 15px 0;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.sistema-rectas-tool .parameter-panel {
    padding: 15px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 15px;
}

.sistema-rectas-tool .results-panel {
    padding: 15px;
    background-color: #e9f2ff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-top: 15px;
}

.sistema-rectas-tool .results-panel h4 {
    color: #0d6efd;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.sistema-rectas-tool .alert {
    margin-top: 15px;
}

/* Estilos específicos para la herramienta del círculo */
.circle-tool {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    color: #212529;
}

.circle-tool .main-title {
    color: #0d6efd;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
    font-size: 1.8rem;
}

.circle-tool .canvas-container {
    border: 1px solid #dee2e6;
    border-radius: 8px;
    background-color: white;
    margin: 15px 0;
    padding: 15px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.circle-tool .parameter-panel {
    padding: 15px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 15px;
}

/* Estilos para las herramientas de cónicas */
.circle-tool .equation-display,
.ellipse-tool .equation-display,
.hyperbola-tool .equation-display,
.parabola-vertical-tool .equation-display,
.parabola-horizontal-tool .equation-display {
    font-size: 1.2rem;
    padding: 15px;
    background-color: #e9f2ff;
    border-radius: 8px;
    margin: 15px 0;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.circle-tool .info-panel,
.ellipse-tool .info-panel,
.hyperbola-tool .info-panel,
.parabola-vertical-tool .info-panel,
.parabola-horizontal-tool .info-panel {
    padding: 15px;
    border-radius: 8px;
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    margin-top: 15px;
}

.circle-tool .animation-controls,
.ellipse-tool .animation-controls,
.hyperbola-tool .animation-controls,
.parabola-vertical-tool .animation-controls,
.parabola-horizontal-tool .animation-controls {
    display: flex;
    gap: 10px;
    margin-top: 10px;
    justify-content: center;
}

/* Estilos específicos para la herramienta de la elipse */
.ellipse-tool {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    color: #212529;
}

.ellipse-tool .main-title {
    color: #9c27b0;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
    font-size: 1.8rem;
}

/* Estilos específicos para la herramienta de la hipérbola */
.hyperbola-tool {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    color: #212529;
}

.hyperbola-tool .main-title {
    color: #ff5722;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
    font-size: 1.8rem;
}

/* Estilos específicos para la herramienta de la parábola */
.parabola-vertical-tool,
.parabola-horizontal-tool {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    color: #212529;
}

.parabola-vertical-tool .main-title,
.parabola-horizontal-tool .main-title {
    color: #4caf50;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
    font-size: 1.8rem;
}

/* Estilos para Volumen como integral definida */
.volumen-tool {
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 12px;
    margin: 20px 0;
}

.volumen-tool .main-title {
    color: #6f42c1;
    text-align: center;
    margin-bottom: 30px;
    font-weight: bold;
    font-size: 2rem;
}

.volumen-tool .parameter-panel {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    height: fit-content;
}

.volumen-tool .parameter-panel h5 {
    color: #6f42c1;
    margin-bottom: 15px;
    font-weight: bold;
}

.volumen-tool .formula-display {
    background-color: #e9ecef;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #6f42c1;
    text-align: center;
}

.volumen-tool .results-panel {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

.volumen-tool .canvas-container {
    background-color: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.volumen-tool #canvasVolumen {
    border: 2px solid #6f42c1;
    border-radius: 8px;
    max-width: 100%;
    height: auto;
}

.volumen-tool .form-range::-webkit-slider-thumb {
    background-color: #6f42c1;
}

.volumen-tool .form-range::-moz-range-thumb {
    background-color: #6f42c1;
    border: none;
}

.volumen-tool .alert-info {
    background-color: #e7f3ff;
    border-color: #6f42c1;
    color: #495057;
}

/* Responsive para dispositivos móviles */
@media (max-width: 768px) {
    .volumen-tool .main-title {
        font-size: 1.5rem;
    }
    
    .volumen-tool #canvasVolumen {
        width: 100%;
        height: 300px;
    }
    
    .volumen-tool .parameter-panel {
        margin-bottom: 20px;
    }
}

/* Responsive design for smaller screens */
@media (max-width: 768px) {
    #sidebar {
        width: 100%;
        height: auto;
        position: static;
    }
    
    #content {
        margin-left: 0;
        padding: 15px;
    }
    
    .tool-container {
        padding: 15px;
    }
    
    .matrix-input {
        width: 50px;
        height: 35px;
        font-size: 12px;
    }
    
    #canvasCirculo, #canvasElipse, #canvasHiperbola, #canvasParabolaVertical, #canvasParabolaHorizontal {
        width: 100%;
        height: 300px;
    }
    
    .circle-tool .main-title,
    .ellipse-tool .main-title,
    .hyperbola-tool .main-title,
    .parabola-vertical-tool .main-title,
    .parabola-horizontal-tool .main-title {
        font-size: 1.5rem;
    }
}

/* Estilos para Distancia entre puntos del plano */
.distancia-puntos-tool {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    color: #212529;
}

.distancia-puntos-tool .main-title {
    color: #0d6efd;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
    font-size: 1.8rem;
}

.distancia-puntos-tool .input-panel {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.distancia-puntos-tool .formula-panel {
    background-color: #e3f2fd;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid #2196f3;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* Mejora para visualización de fórmulas */
.formula-loading {
    display: inline-block;
    position: relative;
    min-height: 30px;
    min-width: 100px;
    background-color: #f8f9fa;
    border-radius: 4px;
    padding: 5px 10px;
    margin: 5px 0;
}

.distancia-puntos-tool .visualization {
    margin-top: 20px;
    margin-bottom: 20px;
}

.distancia-puntos-tool .point {
    font-weight: bold;
}

.distancia-puntos-tool .point-p0 {
    color: #e74c3c;
}

.distancia-puntos-tool .point-p1 {
    color: #e74c3c;
}

.distancia-puntos-tool .note {
    background-color: #fff3cd;
    padding: 10px;
    border-radius: 5px;
    border-left: 4px solid #ffc107;
    margin-top: 15px;
}

.distancia-puntos-tool .results-table {
    margin-top: 20px;
    border-collapse: collapse;
    width: 100%;
}

.distancia-puntos-tool .results-table th,
.distancia-puntos-tool .results-table td {
    border: 1px solid #dee2e6;
    padding: 8px;
    text-align: center;
}

.distancia-puntos-tool .results-table th {
    background-color: #f8f9fa;
}

.distancia-puntos-tool .element-negro {
    background-color: #f5f5f5;
}

.distancia-puntos-tool .element-azul {
    background-color: #e3f2fd;
}

.distancia-puntos-tool .element-rojo {
    background-color: #ffebee;
}

.distancia-puntos-tool .element-verificacion {
    background-color: #f0f4c3;
}

/* Estilos para Área bajo la curva */
.area-bajo-curva-tool {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    color: #212529;
}

.area-bajo-curva-tool .main-title {
    color: #007bff;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
    font-size: 1.8rem;
}

.area-bajo-curva-tool .parameter-panel {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 15px;
}

.area-bajo-curva-tool .canvas-container {
    border: 1px solid #dee2e6;
    border-radius: 8px;
    background-color: white;
    margin: 15px 0;
    padding: 15px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
}

.area-bajo-curva-tool #canvasAreaCurva {
    border: 1px solid #ccc;
    border-radius: 4px;
}

.area-bajo-curva-tool .formula-display {
    background-color: #e3f2fd;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #2196f3;
    text-align: center;
}

.area-bajo-curva-tool .results-panel {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    margin-top: 15px;
}

.area-bajo-curva-tool .form-range {
    margin-bottom: 10px;
}

.area-bajo-curva-tool .form-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 8px;
}

.area-bajo-curva-tool .alert-info {
    background-color: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

/* Estilos responsivos para área bajo la curva */
@media (max-width: 768px) {
    .area-bajo-curva-tool .row {
        flex-direction: column;
    }
    
    .area-bajo-curva-tool #canvasAreaCurva {
        width: 100%;
        height: 300px;
    }
    
    .area-bajo-curva-tool .main-title {
        font-size: 1.5rem;
    }
}

/* Estilos para Área bajo la curva con rectángulos */
.area-rectangulos-tool {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    color: #212529;
}

.area-rectangulos-tool .main-title {
    color: #28a745;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
    font-size: 1.8rem;
}

.area-rectangulos-tool .parameter-panel {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 15px;
}

.area-rectangulos-tool .canvas-container {
    border: 1px solid #dee2e6;
    border-radius: 8px;
    background-color: white;
    margin: 15px 0;
    padding: 15px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
}

.area-rectangulos-tool #canvasRectangulos {
    border: 1px solid #ccc;
    border-radius: 4px;
}

.area-rectangulos-tool .formula-display {
    background-color: #d4edda;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #28a745;
    text-align: center;
}

.area-rectangulos-tool .results-panel {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    margin-top: 15px;
}

.area-rectangulos-tool .form-range {
    margin-bottom: 10px;
}

.area-rectangulos-tool .form-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 8px;
}

.area-rectangulos-tool .alert-info {
    background-color: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

.area-rectangulos-tool .form-control {
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    padding: 0.375rem 0.75rem;
}

.area-rectangulos-tool .form-control:focus {
    border-color: #28a745;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

/* Estilos responsivos para área con rectángulos */
@media (max-width: 768px) {
    .area-rectangulos-tool .row {
        flex-direction: column;
    }
    
    .area-rectangulos-tool #canvasRectangulos {
        width: 100%;
        height: 300px;
    }
    
    .area-rectangulos-tool .main-title {
        font-size: 1.5rem;
    }
}