/* ============================================
   UNIDAD1.CSS - Estilos de Temas 1.1 - 1.7
   Proyecto: Cálculo Integral
   ============================================ */

/* ============================================
   TEMA 1.1 - DIFERENCIAL
   ============================================ */

/* Resultados interactivos */
.resultado-interactivo {
    background: white;
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.resultado-item {
    padding: 1rem;
}

.resultado-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.resultado-valor {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.resultado-subtexto {
    display: block;
    font-size: 0.75rem;
    color: var(--text-light);
}

.resultado-destacado {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-md);
    color: white;
}

.resultado-destacado .resultado-label,
.resultado-destacado .resultado-valor,
.resultado-destacado .resultado-subtexto {
    color: white;
}

.precision-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
}

.precision-bar .progress {
    flex: 1;
    height: 10px;
    border-radius: var(--radius-full);
}

/* ============================================
   TEMA 1.2 - ERRORES (PIZZA)
   ============================================ */

.pizza-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 200px;
}

.pizza-circulo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        inset 0 -5px 15px rgba(0,0,0,0.2),
        0 10px 30px rgba(245, 158, 11, 0.3);
    transition: var(--transition-normal);
}

.pizza-area {
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.pizza-error {
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background: #fee2e2;
    color: #dc2626;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
}

/* Insight box */
.insight-box {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: #ecfdf5;
    border: 1px solid #10b981;
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
}

.insight-box i {
    color: #10b981;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.insight-box strong {
    color: #059669;
}

/* ============================================
   TEMA 1.3 - SIGMA
   ============================================ */

/* Sigma explicado */
.sigma-explicado {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    background: white;
    padding: 1rem;
    border-radius: var(--radius-sm);
    font-family: monospace;
}

.sigma-parte {
    font-size: 0.9rem;
}

.sigma-arriba, .sigma-abajo {
    color: var(--primary);
    font-weight: bold;
}

.sigma-simbolo {
    font-size: 2rem;
    color: var(--text-dark);
}

/* Sigma resultado */
.sigma-resultado {
    background: white;
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
}

.sigma-notacion {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.sigma-expansion {
    font-size: 1.25rem;
    color: var(--text-muted);
    font-family: monospace;
    margin-bottom: 0.5rem;
}

.sigma-total {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

/* Tabla ventas */
.tabla-ventas {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.venta-mes {
    background: white;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
}

/* ============================================
   TEMA 1.4 - RIEMANN
   ============================================ */

.riemann-controles {
    background: white;
    border-radius: var(--radius-md);
    padding: 1.5rem;
    height: 100%;
}

.riemann-n-valor {
    text-align: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-top: 0.5rem;
}

.riemann-resultados {
    border-top: 1px solid #e2e8f0;
    padding-top: 1rem;
}

.riemann-resultado {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
}

.riemann-resultado .label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.riemann-resultado .valor {
    font-weight: 700;
    color: var(--primary);
}

.riemann-resultado .valor.exacta {
    color: var(--accent-green);
}

.riemann-resultado .valor.error {
    color: var(--accent-red);
}

.riemann-insight {
    background: #fef3c7;
    border-radius: var(--radius-sm);
    padding: 1rem;
    font-size: 0.9rem;
    color: #92400e;
    text-align: center;
}

.riemann-insight i {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

/* Idea genial */
.idea-genial {
    background: white;
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-top: 1rem;
}

.idea-genial ol {
    margin: 0.75rem 0 0 1.25rem;
    padding: 0;
}

.idea-genial li {
    padding: 0.25rem 0;
}

/* Conexión integral */
.conexion-integral {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border: 2px solid #22c55e;
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-top: 2rem;
    text-align: center;
}

.conexion-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.conexion-header i {
    color: #22c55e;
    font-size: 1.5rem;
}

.conexion-header h5 {
    margin: 0;
    color: #166534;
    font-weight: 700;
}

/* ============================================
   TEMA 1.5 - INTEGRAL DEFINIDA
   ============================================ */

/* Partes de la integral */
.integral-partes {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: white;
    padding: 1rem;
    border-radius: var(--radius-sm);
    margin-top: 1rem;
}

.integral-parte {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.integral-simbolo {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--primary);
    min-width: 50px;
}

.integral-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Propiedades box */
.propiedades-box {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid #bbf7d0;
}

.propiedades-box h5 {
    color: #166534;
    margin-bottom: 0;
}

.propiedad-item {
    background: white;
    border-radius: var(--radius-sm);
    padding: 1rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.propiedad-formula {
    font-size: 0.95rem;
    color: var(--text-dark);
}

.propiedad-texto {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Controles de integral */
.integral-controles {
    background: white;
    border-radius: var(--radius-md);
    padding: 1.5rem;
    height: 100%;
}

.limite-valor {
    text-align: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-top: 0.5rem;
    margin-bottom: 1rem;
}

.integral-resultado-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
    color: white;
}

.integral-notacion {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.integral-igual {
    font-size: 1.5rem;
    font-weight: 300;
    margin: 0.25rem 0;
}

.integral-valor {
    font-size: 2.5rem;
    font-weight: 700;
}

/* ============================================
   TEMA 1.6 - VALOR MEDIO
   ============================================ */

.valor-medio-visual {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    background: white;
    padding: 1rem;
    border-radius: var(--radius-sm);
}

.vm-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.vm-formula {
    font-weight: 600;
    color: var(--primary);
    min-width: 180px;
}

.vm-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Controles valor medio */
.vm-controles {
    background: white;
    border-radius: var(--radius-md);
    padding: 1.5rem;
    height: 100%;
}

.vm-slider-container {
    margin-bottom: 1.5rem;
}

.vm-slider-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.vm-slider-value {
    font-weight: 700;
    color: var(--primary);
    font-size: 1.1rem;
}

.vm-resultado {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid #e2e8f0;
}

.vm-resultado:last-of-type {
    border-bottom: none;
}

.vm-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.vm-value {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
}

.vm-explicacion {
    background: #eff6ff;
    border-radius: var(--radius-sm);
    padding: 1rem;
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.vm-explicacion i {
    color: var(--primary);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.vm-explicacion p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-dark);
}

/* ============================================
   TEMA 1.7 - TEOREMA FUNDAMENTAL
   ============================================ */

/* Conexión visual derivar/integrar */
.conexion-visual {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 1rem 0;
}

.conexion-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.conexion-box {
    background: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    color: var(--primary);
    border: 2px solid var(--primary-light);
}

.conexion-flecha {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Ejemplo simplificado */
.ejemplo-simplificado {
    background: linear-gradient(135deg, #fefce8 0%, #fef9c3 100%);
    border: 2px solid #facc15;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.ejemplo-simplificado h5 {
    color: #a16207;
    margin-bottom: 1.25rem;
}

.ejemplo-integral {
    background: white;
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
}

.ejemplo-problema {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px dashed #e2e8f0;
}

.ejemplo-pasos-simple {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: left;
}

.paso-simple {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: #f8fafc;
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--primary);
}

.paso-simple.paso-resultado {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-left: none;
    color: white;
}

.paso-label {
    font-weight: 600;
    min-width: 120px;
    font-size: 0.9rem;
}

.paso-simple.paso-resultado .paso-label {
    color: rgba(255,255,255,0.9);
}

.paso-valor {
    font-size: 1.1rem;
}

.paso-simple.paso-resultado .paso-valor {
    font-size: 1.5rem;
    font-weight: 700;
}

.paso-nota-simple {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: auto;
    font-style: italic;
}

/* Demo de inversas */
.inversa-demo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    background: white;
    padding: 2rem;
    border-radius: var(--radius-md);
}

.inversa-columna {
    text-align: center;
    min-width: 120px;
}

.inversa-titulo {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.inversa-funcion {
    background: linear-gradient(135deg, var(--bg-mate) 0%, #e0e7ff 100%);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-dark);
    border: 2px solid var(--primary-light);
}

.inversa-flecha {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    color: var(--primary);
}

.inversa-flecha i {
    font-size: 1.5rem;
}

.inversa-flecha span {
    font-size: 0.8rem;
    font-weight: 600;
}

.inversa-selector {
    max-width: 300px;
    margin: 0 auto;
}

/* ============================================
   RESPONSIVE UNIDAD 1
   ============================================ */

@media (max-width: 991.98px) {
    .integral-partes {
        gap: 0.75rem;
    }
    
    .inversa-demo {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .inversa-flecha {
        transform: rotate(90deg);
    }
    
    .inversa-flecha span {
        transform: rotate(-90deg);
    }
}

@media (max-width: 767.98px) {
    .resultado-valor {
        font-size: 1.2rem;
    }
    
    .sigma-resultado {
        padding: 1.25rem;
    }
    
    .sigma-total {
        font-size: 1.5rem;
    }
    
    .propiedad-formula {
        font-size: 0.85rem;
    }
    
    .integral-valor {
        font-size: 2rem;
    }
    
    .vm-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .vm-formula {
        min-width: unset;
    }
    
    .conexion-item {
        justify-content: center;
    }
    
    .paso-simple {
        flex-wrap: wrap;
    }
    
    .paso-label {
        min-width: 100%;
        margin-bottom: 0.25rem;
    }
    
    .paso-nota-simple {
        margin-left: 0;
        margin-top: 0.5rem;
        width: 100%;
    }
}